CN217246114U

CN217246114U - Pioneer tube, leader end part and pioneer kit

Info

Publication number: CN217246114U
Application number: CN202122944674.5U
Authority: CN
Inventors: 史军; 程跃
Original assignee: Blue Line Platinum Life Technology Suzhou Co ltd
Current assignee: Blue Line Platinum Life Technology Suzhou Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-08-23
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a preceding pipe, guide tip and preceding external member, wherein preceding pipe is suitable for and installs an image acquisition spare and a preceding component, preceding pipe includes a guide tip and has an acquisition channel and an auxiliary channel, image acquisition spare with preceding component is suitable for respectively arranged in acquisition channel with auxiliary channel and preceding pipe is in guide tip have communicate in an acquisition mouth of acquisition channel and communicate in an accommodate port of auxiliary channel, wherein the accommodate port is set up to relative the acquisition mouth extends forward, with the permission certainly the accommodate port stretches out preceding component is in acquisition mouth position be in install in acquisition channel an image acquisition scope of image acquisition spare.

Description

Pioneer tube, leader end part and pioneer kit

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a pioneer pipe, guide's tip and pioneer external member.

Background

Medical personnel treat to the patient in vitro, if the position that needs treatment is at the patient body surface, then medical personnel can directly exert corresponding utensil for treatment or treatment medicine on the patient body surface, if the position that needs treatment is internal at the patient, then medical personnel can just can treat to the internal target position of patient with the help of some professional utensil.

Further, if a medical staff wants to deliver a corresponding therapeutic device or a therapeutic drug from outside the body to a target site inside the body, the staff usually needs to reach the desired site inside the body by means of a natural or artificial passage through a certain distance. The natural channel is a channel naturally formed by a human body, and the medical staff can smoothly convey the target object to the target position along the natural channel by operating the appliance. The artificial passage is a passage formed in the future, and a medical staff operating an instrument such as a puncture needle can form a passage extending from the body surface to the body in the human body. In order to reduce the damage to the human body and also to reduce the difficulty of establishing the passageway, the operation of establishing the acquired passageway is generally as follows: a small-sized channel is created by the elongated member and a support tube having a larger cross-sectional dimension than the elongated member is then placed along the elongated member or other guide member to create a larger-sized working channel for placement of a corresponding medical instrument.

At present, there are many problems in such a way of establishing an operation channel, one of the problems is that blood vessels may be fully distributed around a small-sized channel established in advance, so that in the process of entering a support tube, medical staff cannot observe internal conditions to cause deviation of the position where the support tube enters, for example, the depth of the support tube entering may be too deep, so that a specific instrument is inserted into a non-target position, a patient may suffer from heavy bleeding due to the fact that the support tube is inserted into the blood vessel, even the support tube itself breaks the blood vessel to cause heavy bleeding, for example, the position of the support tube entering may be too shallow, so that related instruments or medicines cannot be sent to a proper position to play a role.

One way to solve the above problem is to mark the support tube and position the support tube during insertion using a B-ultrasonic machine or other positioning device, so that the support tube is first mounted at the correct position and then the subsequent operation is performed with the mounted support tube. This solution has the problem that the support tube needs to be placed by the medical staff with the aid of additional equipment, and in general the equipment is of a flat type, i.e. the medical staff, although being able to know the approximate position of the support tube, still has the support tube inserted to an unintended position, for example, into a peripheral blood vessel, causing major bleeding.

SUMMERY OF THE UTILITY MODEL

An advantage of the present invention is to provide a preceding pipe, guide's tip and preceding external member, wherein preceding external member includes preceding pipe, a preceding piece and an image acquisition component, image acquisition component with preceding piece be suitable for be set up in preceding pipe and preceding pipe is through certain design so that image acquisition component can catch anticipated image, so that preceding pipe can be placed to the target location safely.

Another advantage of the present invention is to provide a pioneer tube, leading tip and pioneer kit, wherein the pioneer tube is designed to make certainly the pioneer tube passes the pioneer kit can play the guiding role comparatively steadily.

Another advantage of the present invention is to provide a precursor tube, a guide end and a precursor kit, wherein the image capturing component can capture the image of the foremost position of the precursor tube to reduce the blind area of the tube feeding process as much as possible.

Another advantage of the present invention is to provide a precursor tube, a guide end and a precursor kit, wherein the image acquisition member can capture an image of a receiving opening of the precursor tube, and the precursor kit is worn out from the receiving opening.

Another advantage of the present invention is to provide a precursor tube, a leading end and a precursor kit, wherein the precursor assembly can be oriented to the direction of the image capturing assembly after the accommodating opening is worn out, so that the precursor assembly can be captured by the image capturing assembly, and the precursor tube can be maintained at the position of the accommodating opening with a smaller cross section.

Another advantage of the present invention is to provide a precursor tube, a precursor end and a precursor kit, wherein the precursor kit can maintain a clear surrounding environment, which is beneficial to clear visual field in the subsequent operation steps.

Another advantage of the present invention is to provide a precursor tube, a leading end and a precursor kit, wherein the precursor kit provides the functions of filling and suction, on one hand, to transport fluid toward the inside of the body, and on the other hand, to suck the internal material, such as blood clots, to the outside of the body, so as to maintain the internal operating environment in a suitable state.

The advantages and features of the invention will be more fully apparent from the detailed description set forth below and may be realized by means of the instruments and combinations particularly pointed out in the appended claims.

According to an aspect of the present invention, which can achieve at least one of the above objects or advantages, there is provided a precursor kit, wherein the precursor kit comprises:

an image acquisition member;

a precursor member; and

a precursor tube, said precursor tube comprising a tube body and a pilot end and having a collecting channel and an auxiliary channel, said pilot end being disposed at one end of said tube body and said collecting channel and said auxiliary channel being disposed through said tube body and said pilot end, respectively, wherein said image capturing element and said precursor element are adapted to be disposed in said collecting channel and said auxiliary channel, respectively, wherein said precursor tube has a collecting port in said pilot end communicating with said collecting channel and a receiving port in said auxiliary channel, and said receiving port is configured to extend forward relative to said collecting port to allow said precursor element protruding from said receiving port to be in an image capturing range of said image capturing element mounted to said collecting channel at said receiving port location.

According to another aspect of the present invention, there is provided a precursor tube adapted to be installed with an image collecting component and a precursor component, wherein the precursor tube comprises a tube body and a pilot end and has a collecting channel and an auxiliary channel, the pilot end is disposed at one end of the tube body and the collecting channel and the auxiliary channel are respectively communicated with the tube body and the pilot end, wherein the image collecting component and the precursor component are respectively adapted to be disposed at the collecting channel and the auxiliary channel, wherein the precursor tube is disposed at the pilot end has a collecting port communicated with the collecting channel and a receiving port communicated with the auxiliary channel, and the receiving port is configured to extend forward relative to the collecting port to allow the precursor component extending from the receiving port to be located at the receiving port position in a picture of the image collecting component installed at the collecting channel Image acquisition range.

According to an embodiment of the invention, the precursor member protruding from the receiving opening is arranged to extend forward and obliquely towards a direction in which the image acquisition member extends.

According to an embodiment of the present invention, the precursor tube comprises a tube circumferential wall and a tube inner wall, the tube inner wall being arranged at the tube circumferential wall to define at least part of the auxiliary channel and at least part of the collecting channel, wherein the tube circumferential wall part at the leading end for defining the auxiliary channel is arranged inclined towards the tube inner wall part to reduce the cross-sectional area of the corresponding auxiliary channel, such that the precursor protruding from the receiving opening is inclined towards the collecting channel along the inclined tube circumferential wall.

According to an embodiment of the invention, the tube circumferential wall part forming the receiving opening is arranged to protrude from the tube inner wall to communicate the auxiliary channel with the collecting channel at a side of the auxiliary channel.

According to an embodiment of the present invention, the precursor tube comprises a tube circumferential wall and a tube inner wall, the tube inner wall is arranged at the tube circumferential wall and separates at least part of the auxiliary channel and at least part of the collecting channel, wherein the tube circumferential wall part forming the receiving opening is arranged to protrude from the tube inner wall to communicate laterally the auxiliary channel and the collecting channel, so as to allow the precursor piece coming out from the receiving opening to be tilted towards the collecting channel.

According to an embodiment of the present invention, the precursor tube comprises a tube circumferential wall and a tube inner wall, the tube inner wall is disposed on the tube circumferential wall and separates at least part of the auxiliary channel and at least part of the collecting channel, wherein the circumference of the tube circumferential wall part forming the receiving opening is inwardly recessed to form a gap, by which the collecting channel and the auxiliary channel are laterally communicated and the image collecting member mounted on the auxiliary channel is allowed to collect an image information of the precursor member located in the auxiliary channel through the gap.

According to an embodiment of the present invention, the collecting channel has a central axis, and an axis extending from the receiving opening at which the extending direction of the precursor member is located and the central axis have a junction and the junction is located in front of the leading end.

According to the utility model discloses an embodiment, the guide tip has a guide tip terminal surface, guide tip terminal surface includes one and holds the terminal surface and one gathers the terminal surface, gather the terminal surface set up for it forms to hold the terminal surface forward slope extension, wherein hold the mouth and be located hold the terminal surface, it is located to gather the mouth gather the terminal surface.

According to an embodiment of the present invention, the leading end has a leading end circumference, the leading end circumference is set to extend backward from the circumference of the leading end surface, wherein the leading end circumference is set to gradually decrease from the pipe body toward the leading end surface around the area of the cross section formed.

According to another aspect of the present invention, there is provided a pilot tip adapted to be disposed in a tubular body to form a precursor tube, the precursor tube is adapted to be fitted with an image acquisition member for acquiring an image and a precursor member adapted to guide the precursor tube, wherein the pilot end part is provided with a containing port and a collecting port and the precursor tube forms a collecting channel and an auxiliary channel which are respectively communicated with the containing port and the collecting port, wherein the image acquisition member and the precursor member are adapted to be arranged in the acquisition channel and the auxiliary channel, respectively, wherein the receiving port is arranged to extend forwardly relative to the collecting port to allow the precursor member protruding from the receiving port to be within an image collecting range of the image collecting member mounted to the collecting passage at the position of the receiving port.

According to another aspect of the present invention, there is provided a pilot tip adapted to be disposed in a tubular body to form a precursor tube, the precursor tube is adapted to be fitted with an image acquisition member for acquiring an image and a precursor member adapted to guide the precursor tube, wherein the pilot end part is provided with a containing port and a collecting port, the pilot tube forms a collecting channel and an auxiliary channel and is respectively communicated with the containing port and the collecting port, wherein the image acquisition member and the precursor member are adapted to be arranged in the acquisition channel and the auxiliary channel, respectively, wherein the precursor tube comprises an inner tube wall and a circumferential tube wall, the inner tube wall being arranged at the circumferential tube wall and separating at least part of the auxiliary channel and at least part of the collecting channel, wherein the tube peripheral wall portion forming the receiving opening is provided to protrude from the tube inner wall.

According to another aspect of the present invention, there is provided a precursor tube adapted to be arranged in a tube body to form a precursor tube, the precursor tube being adapted to be fitted with an image capturing member for capturing an image and a precursor member adapted to guide the precursor tube, wherein the precursor tube has a receiving opening and a capturing opening, the precursor tube forming a capturing passage and an auxiliary passage and being in communication with the receiving opening and the capturing opening, respectively, wherein the image capturing member and the precursor member are adapted to be arranged in the capturing passage and the auxiliary passage, respectively, wherein the precursor tube comprises a tube inner wall and a tube peripheral wall, the tube inner wall being arranged in the tube peripheral wall and separating at least part of the auxiliary passage and at least part of the capturing passage, wherein a peripheral edge of the tube peripheral wall part forming the receiving opening is inwardly recessed to form a notch, the notch is used for communicating the collecting channel and the auxiliary channel at the side and allowing the image collecting part arranged on the auxiliary channel to collect image information of the precursor part positioned on the auxiliary channel through the notch.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims.

Drawings

Fig. 1 is a schematic diagram of a system for capturing images according to a preferred embodiment of the present invention.

Fig. 2A is a schematic view of a precursor kit according to a preferred embodiment of the present invention.

Fig. 2B is a cross-sectional view of the precursor assembly according to the above preferred embodiment of the present invention.

Fig. 3 is an exploded view of the precursor kit according to the above preferred embodiment of the present invention, wherein the precursor kit includes a precursor tube.

Fig. 4 is a partial schematic view of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 5A is a partial perspective view of the precursor tube according to the above preferred embodiment of the present invention.

Fig. 5B is a schematic partial cross-sectional view of the precursor tube according to the above preferred embodiment of the present invention.

Fig. 5C is a schematic partial perspective view of the precursor tube according to the above preferred embodiment of the present invention.

Fig. 5D is a schematic view of a partially cut-away application of the precursor tube according to the above preferred embodiment of the present invention.

Fig. 6A is a partial schematic view of the precursor tube according to another preferred embodiment of the present invention.

Fig. 6B is a partial cross-sectional view of the precursor tube according to the above preferred embodiment of the present invention.

Fig. 7A is a schematic view of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7B is a schematic diagram of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7C is a schematic diagram of a third application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7D is a diagram illustrating the application of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7E is a schematic diagram of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7F is a sixth schematic view of the application of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7G is a seventh schematic view of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7H is an eighth schematic diagram of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7I is a nine-schematic diagram of the application process of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 7J is a cross-sectional view illustrating the application of the precursor kit according to the above preferred embodiment of the present invention.

Fig. 8A is a schematic diagram of a precursor kit according to the present invention.

Figure 8B is a schematic view of another precursor kit according to the present application.

Fig. 8C is a schematic view of the application of the precursor kit according to the above preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 5D, a precursor tube and precursor kit according to a preferred embodiment of the present invention is shown.

The system for acquiring images comprises the precursor kit 1000, a processor 2000 and a display device 3000, wherein the precursor kit 1000 comprises the precursor tube 1 and may further comprise a precursor 2 and an image acquisition member 3, wherein the processor 2000 processes to obtain images based on information acquired by the image acquisition member 3 of the precursor kit 1000, and the display device 3000 displays the images obtained by the processor 2000. The processor 2000 is communicatively coupled to the display device 3000, and the precursor assembly 1000 is communicatively coupled to the processor 2000. At least part of the said precursor tube 1 is designed to have a certain rigidity, on one hand to maintain the external profile in the body and on the other hand to maintain the internal channel.

At least a part of the precursor tube 1 can be fed into a body, such as a human body or an animal body, the precursor assembly 2 is adapted to be mounted on the precursor tube 1 of the precursor tube 1 to guide the precursor tube 1 to be mounted at a proper position in the body, and the image acquisition assembly 3 is adapted to be mounted on the precursor tube 1 of the precursor tube 1 to acquire environmental information of the surrounding environment of the precursor tube 1, particularly the advancing direction of the precursor tube 1, so as to visualize the mounting process of the precursor tube 1, thereby enabling the controllable mounting of the precursor tube 1.

In detail, the precursor tube 1 of the precursor tube 1 comprises a tube body 10 and a pilot end portion 20, the pilot end portions 20 being respectively arranged at one end of the tube body 10, wherein the precursor tube 1 has a secondary channel 100 and a collecting channel 200 and the secondary channel 100 and the collecting channel 200 are respectively adapted to extend from the tube body 10 to the pilot end portion 20 and through the tube body 10 and the pilot end portion 20.

The precursor assembly 2 is adapted to be mounted to the auxiliary channel 100 of the precursor tube 1 and the image acquisition assembly 3 is adapted to be mounted to the acquisition channel 200. It is understood that the image capturing member 3 may be detachably disposed in the capturing channel 200, or may be fixedly disposed in the capturing channel 200, for example, integrally formed with the capturing channel 200.

The precursor assembly 2 is adapted to be inserted into the body to guide the subsequent precursor tube 1. There are many ways to insert the precursor 2 into the body, for example, an elongated piercing member which is small and slender and has a certain hardness can be inserted into the body, then the precursor 2 is inserted along the inside of the elongated piercing member, and then the elongated piercing member is pulled out, so as to keep the precursor 2 in the body, so as to be suitable for guiding the precursor tube 1 to be installed at a proper position in the body. The precursor 2 is an elongated member, which mainly serves as a guide and can be directly pulled out after use without causing damage to the tissues in the body. The material of the precursor 2 can be various, such as metal material, plastic material, etc., and is herein for illustration and not limitation.

The image capturing member 3 may include an extension connector 31 and an image capturing head 32, the image capturing head 32 being disposed at a front end of the extension connector 31 and adapted to capture image information. A rear end of the extension connector 31 may be connected to the processor 2000 or an energy supply device, however, it is understood that the image capturing element 3 may be an active device or a passive device, and the image capturing element 3 and the processor 2000 may be connected by wire or wirelessly. The image acquisition head end 32 may be integrated with a light source and a light sensor to acquire images with the aid of the light source. The light source is used for emitting light rays to irradiate the collected object, and the light sensor is used for receiving the reflected light rays to collect image information about the collected object.

Further, the image capturing element 3 may include an electronic sensor, for example, the optical sensor may be a camera, and may be, but is not limited to, a camera module composed of a lens and a CMOS image sensor, and may also be other types of sensors for capturing image information. The light source may be, but is not limited to, a led light source or a cold light source. The image capturing element 3 may comprise a fibre-optic sensor, which may be a pixel formed by a plurality of optical fibres.

Before the precursor tube 1 is inserted into the body, the image acquisition member 3 is mounted in advance to the acquisition channel 200 of the precursor tube 1. It is understood that the image acquisition member 3 may be pre-integrated with the acquisition channel 200 of the precursor tube 1, and the image acquisition member 3 may be detachably mounted to the acquisition channel 200 of the precursor tube 1. When the precursor tube 1 needs to be installed, the precursor 2 is inserted along the auxiliary channel 100 portion of the leading end 20 of the precursor tube 1 to be fed along the precursor 2 to the desired position with the aid of the image acquisition member 3.

Further, the precursor tube 1 has a receiving port 101 and a collecting port 201, the receiving port 101 forms the leading end 20 and communicates with the auxiliary channel 100, and the collecting port 201 forms the leading end 20 and communicates with the collecting channel 200. The precursor assembly 2 is adapted to extend from the receiving port 101 and continue to extend forward, and the image capturing head end 32 is adapted to be mounted at the position of the capturing port 201 of the precursor tube 1. The size and shape of the acquisition port 201 may be arranged such that the image acquisition head end 32 is stably mounted near the acquisition port 201 to stably acquire image information.

The receiving port 101 and the collecting port 201 are designed so that the image collecting member 3 arranged in the collecting channel 200 can collect suitable image information to assist the precursor tube 1 to feed the precursor tube 1 along the precursor member 2 under the condition that the image information of the precursor member 2 near the receiving port 101 is observed.

In detail, the receiving port 101 is provided to extend obliquely forward with respect to the collecting port 201. The direction of extension from one end of the precursor tube 1 towards the leading end 20 is forward. Since the receiving port 101 is arranged to extend forward, the precursor 2 is mounted to the receiving port 101 with a limit within a certain range, and therefore the precursor 2 coming out of the receiving port 101 is also allowed to extend forward under the limit of the receiving port 101.

After the image acquisition part 3 is arranged in the precursor tube 1 and the precursor part 2 passes through the precursor tube 1, an included angle is formed between the axis of the part of the precursor part 2 at the leading end part 20 of the precursor tube 1 and the optical axis of the image acquisition part 3. It will be understood that this does not mean that the axis of the part of the precursor assembly 2 at the leading end 20 of the precursor tube 1 and the central axis of the image capturing member 3 meet at a position, for example, the axis of the precursor assembly 2 and the central axis of the image capturing member 3 may be non-parallel straight lines in two planes respectively.

Since the collection port 201 is provided on the rear side of the housing port 101, that is, the housing port 101 is located on the front side of the collection port 201, when the image pickup device 3 is operated, the position of the housing port 101 located in front of the image pickup device 3 can be collected. In some of the other types of precursor tubes 1 currently in use, the receiving opening 101 and the collecting opening 201 are arranged side by side or the receiving opening 101 is arranged behind the collecting opening 201, which makes it impossible for the image capturing member 3 mounted on the auxiliary channel 100 to capture an image of the position of the receiving opening 101.

In more detail, as for the accommodating port 101 and the collecting port 201 which are arranged side by side, it is difficult for the image collecting member 3 to collect the image information of the accommodating port 101 or the collecting port 201, and the cross-sectional area of the leading end portion 20 is larger due to the accommodating port 101 and the collecting port 201 being arranged side by side, thereby increasing the difficulty of the precursor tube 1 entering the body. Further, the receiving port 101 and the collecting port 201 are arranged side by side, and the receiving port 101 and the collecting port 201 are located at the foremost end of the precursor tube 1, and are the first sites to enter an unknown region in the body, however, in the case where the collecting port 201 cannot be collected by the image collecting member 3 or the receiving port 101 is present, the image information collected by the image collecting member 3 arranged forward is the environmental information in front of the leading end portion 20 of the precursor tube 1, in case the leading end 20 penetrates the blood vessel surrounding the precursor tube 2 during advancement of the precursor tube 1, the image information acquired by means of the image acquisition member 3 may not prevent this in advance, because the receiving port 101 and the capturing port 201 at this time are in a blind area with respect to the image capturing member 3.

In the case where the collecting port 201 is arranged in front of the receiving port 101, the image collecting member 3 mainly collects an image in front of the leading end 20 of the precursor tube 1. In detail, the collecting port 201 and the receiving port 101 are arranged at the leading end 20 and are arranged forward, the collecting port 201 is located in front of the receiving port 101, and the collecting port 201 is located at the most forward position of the whole precursor tube 1. Similarly, since the image capturing member 3 is installed in the auxiliary passage 100 and may be located at least partially at the receiving opening 101 to capture an image forward, it is difficult for the image capturing member 3 to capture the position of the receiving opening 101 where it is located, and therefore there is still a possibility that the portion of the leading end 20 of the precursor tube 1 forming the receiving opening 101 is inserted into an unintended position, and although the precursor tube 1 is controllably advanced forward along the precursor 2 in the display of the display apparatus 3000 at this time, the portion of the leading end 20 of the precursor tube 1 forming the receiving opening 101 may have been inserted into a blood vessel in a visually blind position.

In the present embodiment, the collecting port 201 is arranged behind the receiving port 101, so that the foremost position of the precursor tube 1 is the position of the receiving port 101, and the image collecting member 3 arranged in the auxiliary passage 100 can capture the image information of the position of the receiving port 101 forward, so that the operator can observe the condition of the receiving port 101 and the condition of the precursor 2 protruding from the receiving port 101, and therefore the precursor tube 1 can complete the whole installation process with the foremost end thereof controllable. In this way, the installation process of the precursor tube 1 really realizes the visibility and controllability of the head end, reduces the risk that the precursor tube 1 is inserted into an unexpected position in the installation process, and increases the safety of the whole intubation process.

Further, in the two previous arrangements of the receiving port 101 and the collecting port 201 mentioned above, the auxiliary channel 100 and the collecting channel 200 are arranged in parallel, whether in the auxiliary channel 100 and the collecting channel 200 portion of the tubular body 10 or in the auxiliary channel 100 and the collecting channel 200 portion of the pilot end 20. This makes the optical axis center of the image pickup element 3 mounted to the auxiliary passage 100 and the central axis of the precursor 2 mounted to the pickup passage 200 parallel to each other. When an operator installs the precursor tube 1, the precursor 2 observed through the display device 3000 is not at the visual center, which brings difficulty to the operator, that is, the precursor 2 is always at a position lower than or higher than the visual center in the display device 3000 or at a position left or right, and the operator needs to complete the installation of the precursor tube 1 along the visually offset precursor 2.

In the present embodiment, the precursor 2 protruding from the receiving port 101 is disposed obliquely with respect to the receiving port 101 or the auxiliary channel 100 so that the precursor 2 can be observed at the center of the optical axis of the image pickup member 3. In other words, the operator can observe the precursor 2 located at the visual center on the display device 3000 while operating the precursor tube 1, to facilitate the operator's operation.

In detail, the auxiliary channel 100 at the leading end 20 of the precursor tube 1 is arranged obliquely and is arranged obliquely forwards towards the collecting channel 200. The precursors 2 protruding from the receiving opening 101 may be inclined under the constraint of the auxiliary channel 100 and/or the receiving opening 101. It will be understood that the orientation of the precursor members 2 can be restricted by the auxiliary channel 100 alone, by the receiving opening 101 alone, or by the cooperation of the auxiliary channel 100 and the receiving opening 101.

Further, in order to facilitate the easy introduction of the precursor tube 1 into the body, the leading end 20 of the precursor tube 1 is designed to be small in size relative to the tube body 10 so that the leading end of the precursor tube 1 can be easily introduced into the body.

In this embodiment, the auxiliary channel 100 at the leading end 20 is disposed to be inclined toward the collecting channel 200, which is beneficial to reduce the size of the leading end 20, on one hand, to facilitate the feeding of the precursor tube 1 into the body, and on the other hand, to reduce the possibility of tissue damage in the body due to the large size of the precursor tube 1 relative to the originally established channel. In other words, in this embodiment, the pilot end 20 of the precursor tube 1 can be designed to be smaller in size, since the collecting channel 200 and the auxiliary channel 100 are arranged more compactly at the location of the pilot end 20. It should be noted that the precursor tube 1 has a front end and a rear end, the front end and the rear end are oppositely arranged, the front end of the precursor tube 1 is located at the leading end 20, the rear end of the precursor tube 1 is located at the other end, in this embodiment, the closer to the front end of the precursor tube 1, the closer the distance between the collecting channel 200 and the auxiliary channel 100 is, and therefore, the closer to the front end of the precursor tube 1, the smaller the size of the precursor tube 1 can be designed, so as to facilitate the precursor tube 1 to enter into the body.

Further, referring to fig. 8A, 8B and 8C, fig. 8A and 8B show two existing arrangements of the receiving port 101 and the collecting port 201 of the precursor tube 1, respectively, wherein one arrangement is that the receiving port 101 and the collecting port 201 are arranged side by side, and the other arrangement is that the receiving port 101 is arranged behind the collecting port 201. Fig. 8C shows the arrangement of the receiving port 101 and the collecting port 201 of the precursor tube 1 in this embodiment, and the receiving port 101 is arranged in front of the collecting port 201.

Compared with the three tests, in the test process, it is obviously found that the two types of the precursor tubes 1 illustrated in fig. 8A and 8B have violent shaking when passing through the precursor member 2 of the precursor tube 1 in the tube feeding process, and the precursor member 2 is directly exposed, so that once being squeezed by the front tissue, the precursor member 2 may disappear in the visual field, and the operator cannot judge the current situation.

In fig. 8C, the peripheral wall 30 of the precursor tube 1 is protruded from the peripheral side of the precursor member 2, so that the peripheral wall 30 is visible in the field of view, and the operator can observe the precursor member 2 conveniently, and the peripheral wall 30 of the precursor member 2 is arranged on the peripheral side of the precursor member 2, so that the shielding of the precursor member 2 by the front or surrounding tissues is reduced, and the precursor member 2 can be kept in a visible state, so that the operator can judge the current state conveniently. Further, the tube peripheral wall 30 allows the precursors 2 to be in a relatively stable state, and the operator can obtain clear image information to facilitate subsequent control. In practical use, it can be obviously observed that the image acquisition effect in the embodiment is better than that of the current two types, and the attached drawing is a static expression and is only a schematic illustration.

Further, referring to fig. 5A to 5D, the leading end 20 of the precursor tube 1 has a leading end peripheral surface 21 and a leading end surface 22, the leading end peripheral surface 21 is disposed to extend rearward from the periphery of the leading end surface 22, and the receiving port 101 and the collecting port 201 are formed in the leading end surface 22. The leading end face 22 of the precursor tube 1 comprises a collecting end face 221 and a receiving end face 222, and the collecting end face 221 and the receiving end face 222 are connected with each other. The collecting port 201 is formed on the collecting end surface 221, and the accommodating port 101 is formed on the accommodating end surface 222. The receiving end surface 222 extends forward along the collecting end surface 221.

The collecting end surface 221 of the leading end portion 22 of the leading end portion 20 of the precursor tube 1, on which the work is formed, may be an inclined arc surface inclined forward and inward from the circumferential side position of the precursor tube 1, that is, the receiving end surface 222. In other words, the collecting end surface 221 may form an obtuse angle with the forward extension direction of the axis of the leading end 20 to facilitate the feeding of the leading end surface 22 of the precursor tube 1.

The receiving end face 222 of the leading end face 22 of the leading end 20 of the precursor tube 1, on which the receiving opening 101 is formed, may be an arc face and may be arranged substantially perpendicular to the axis of the leading end 20. Since the receiving end face 222 is arranged forward relative to the collecting end face 221, arranging the receiving end face 222 perpendicular relative to the pilot end 20 facilitates providing a certain contact area at the front end of the precursor tube 1 to avoid that the front end of the precursor tube 1 is too sharp.

Preferably, the entire periphery of the leading end surface 22 of the leading end 20 of the precursor tube 1 is provided in an arc shape.

Further, the precursor tube 1 comprises a tube peripheral wall 30 and a tube inner wall 40, the tube inner wall 40 being provided to the tube peripheral wall 30 and separating at least part of the auxiliary channel 100 and at least part of the collecting channel 200.

It is understood that the tube peripheral wall 30 and the tube inner wall 40 form the tube body 10 and the pilot end 20 of the precursor tube 1, respectively, which does not mean that the tube body 10 and the pilot end 20 are integrated, and the tube body 10 and the pilot end 20 may be integrally formed or the tube body 10 and the pilot end 20 may be separately disposed. The tube inner wall 40 may extend integrally with the tube peripheral wall 30, or may be disposed separately from the tube peripheral wall 30, and for example, the tube inner wall 40 may be inserted into the tube peripheral wall 30. In addition, the inner wall 40 of the tube may be a dense sheet structure such that the collecting channel 200 and the auxiliary channel 100 do not communicate with each other at the position of the tube 10. Alternatively, the inner wall 40 of the tube may be a hollow structure, so that the collection channel 200 and the auxiliary channel 100 can communicate with each other at the position of the tube 10. Alternatively, the tube inner wall 40 may be arranged in segments at various positions of the tube peripheral wall 30 along the length of the tube peripheral wall 30,

the tube inner wall 40 is provided with at least two functions, firstly, the auxiliary channel 100 and the collecting channel 200 can be separated to reduce the mutual interference between the image collecting member 3 and the precursor member 2 respectively located in the collecting channel 200 and the auxiliary channel 100, and secondly, by virtue of the tube inner wall 40, the precursor tube 1 can realize the positioning of the precursor member 2 to a certain extent to facilitate the image collecting member 3 to capture the image about the precursor member 2.

It is to be noted that the tube peripheral wall 30 portion forming the receiving port 101 is provided to protrude from the tube inner wall 40 to communicate the auxiliary passage 100 and the collecting passage 200 in a lateral direction. With respect to the precursor 2 mounted to the auxiliary passage 100, at the position of the receiving opening 101, the precursor 2 is restricted by the protruding tube peripheral wall 30 portion on the tube peripheral wall 30 portion side and is not restricted by the tube inner wall 40 on the tube inner wall 40 side, so that the precursor 2 can be tilted in advance toward the collecting passage 200 by a certain design of the pilot end portion 20.

In other words, in other embodiments of the present invention, the end surface of the tube inner wall 40 of the precursor tube 1 may be arranged flush with the end surface of the tube peripheral wall 30. Whereas in the present embodiment the end face of the tube inner wall 40 of the precursor tube 1 is arranged lower than the end face of the tube peripheral wall 30, the precursor pieces 2 can be arranged obliquely in advance toward the collecting channel 200 with respect to the flush arrangement, so that the precursor pieces 2 are closer to the collecting channel 200. In addition, the absence of the tube inner wall 40 at the position of the receiving opening 101 reduces the obstruction of the tube inner wall 40 to the image capturing element 3 located in the capturing channel 200, which facilitates the image capturing element 3 to directly capture the image of the precursor 2 protruding from the receiving opening 101.

Further, the inner tube wall 40 of the precursor tube 1 at the end face of the leading end 20 can be provided with a recess to facilitate better positioning of the precursor elements 2. During the installation of the precursor tube 1, the position of the precursor assembly 2 is affected by the compression of the precursor tube 1 and surrounding tissue, which may cause it to wobble. Since the tube peripheral wall 30 is convexly disposed around the precursor 2, except for the position of the tube inner wall 40, the tube peripheral wall 30 can play a certain role in protecting the precursor 2, so as to reduce the influence of surrounding tissues on the precursor 2, reduce the shaking of the precursor 2 in a visible range, and facilitate the improvement of visual effect.

The part of the peripheral tube wall 30 which projects from and is arranged at least partially around the precursor member 2 acts like a "cap" for the precursor member 2 to facilitate smooth feeding of the precursor tube 1 along the precursor member 2 during pushing.

Further, the inner wall 40 of the precursor tube 1 is recessed inwardly at one end face of the leading end 20 to form a notch 400, on one hand, the collecting channel 200 and the auxiliary channel 100 are communicated at the side, on the other hand, the notch 400 enables the precursor 2 mounted on the auxiliary channel 100 and extending from the position of the receiving opening 101 to be captured by the image collecting member 3 located in the collecting channel 200 in advance. In other words, the precursors 2 may not need to wait until they fully extend out of the precursor tube 1 before they can be captured by the image acquisition member 3.

Further, the precursor kit 1000 further comprises a precursor tube connector 4, wherein the precursor tube connector 4 is adapted to be arranged at the precursor tube 1 and at the rear end of the precursor tube 1. The precursor tube connector 4 may be detachably connected to the precursor tube 1, or may be integrally formed with the precursor tube 1.

The precursor tube connector 4 comprises a main connector 41, an injection connector 42 and an installation connector 43, and a main connecting channel 410, an injection connecting channel 420 and an installation connecting channel 430 are respectively arranged on the main connector 41, wherein the main connector 41 is formed with the main connecting channel 410, which is suitable for being communicated with the collection channel 200 of the precursor tube 1, wherein the injection connector 42 is formed with the injection connecting channel 420, which is suitable for being communicated with the main connecting channel 410 to be communicated with the collection channel 200 of the precursor tube 1, wherein the installation connector 43 is formed with the installation connecting channel 430, which is suitable for being communicated with the auxiliary channel 100 of the precursor tube 1.

The main connecting channel 410 is adapted to pass the image acquisition member 3 to extend to the portion of the acquisition channel 200 of the leading end 20 of the precursor tube 1. The injection connection channel 420 is adapted to be injected with a fluid to transfer the fluid to the position of the collecting channel 200 of the pilot end 20 of the precursor tube 1, so as to provide a clear view of the image capturing member 3 in front of the image capturing member 3 when needed. The mounting connection channel 430 is adapted to allow the precursors 2 to pass through. When the precursor tube 1 is inserted along the precursor assembly 2, one end of the precursor assembly 2 along the auxiliary channel 100 of the precursor tube 1 enters the installation connection channel 430 of the precursor tube connector 4 and can pass through from the installation connector 43 to be exposed.

Optionally, at the position of the precursor tube connector 4, the injection flow connection channel 420 is communicated with the main connection channel 410, and the installation connection channel 430 is independent of the main connection channel 410. In other words, the precursor 2 and the image capturing element 3 can be independent of each other and do not interfere with each other at the position of the precursor connector 4.

When the precursor tube connector 4 is mounted to the precursor tube 1, the main connection channel 410 of the precursor tube connector 4 and the collecting channel 200 of the precursor tube 1 are coaxially arranged, and at least a part of the mounting connection channel 430 of the precursor tube connector 4 and the auxiliary channel 100 of the precursor tube 1 may be coaxially arranged. The relative positions of the image acquisition part 3 and the precursor part 2 are consistent regardless of the position of the precursor tube 1 or the position of the precursor tube connector 4. For example, during operation, the tube can be entered in such a way that the collecting channel 200 is located above the auxiliary channel 100, in such a way that the image-collecting member 3 is located above the precursor member 2, similarly to entering the tube in a manner of overlapping the precursor member 2, on the one hand facilitating the tube entry and on the other hand not interfering too much with the position of the precursor member 2. Of course, it will be understood by those skilled in the art that the precursor kit 1000 can also be arranged with the auxiliary channel 100 above the collecting channel 200, and the positions of the mounting connection channel 430 of the precursor tube connector 4 and the main connection channel 410 of the precursor tube connector 4 corresponding to the auxiliary channel 100 and the collecting channel 200, respectively, can also be interchanged.

Optionally, the main connection channel 410 of the main connector 41 of the precursor tube connector 4 is located at the central axis of the main connector 41 and the collecting channel 200 of the precursor tube 1 is located at the central axis of the precursor tube 1. The central axis of the main connector 41 of the precursor tube connector 4 and the central axis of the precursor tube 1 are located on the same axis. When an operator operates the precursor kit 1000, since the image acquisition part 3 is arranged on the central axis of the precursor tube 1, the image acquired by the image acquisition part 3 is located at the visual center, and the visual perception and the operation perception can be consistent, so that the operation of the operator is facilitated.

It is understood that the relative position of the collecting channel 200 and the auxiliary channel 100 can be other ways for the precursor tube 1, for example, the collecting channel 200 and the auxiliary channel 100 can be respectively located on two sides of the central axis of the precursor tube 1, or the auxiliary channel 100 can be located on the central axis of the precursor tube 1.

In addition, the collecting channel 200 of the precursor tube 1 can be completely independent of the auxiliary channel 100, the cross section of the collecting channel 200 can be circular, elliptical or triangular, and the shape of the collecting channel 200 can be arranged according to requirements. The cross-section of the auxiliary channel 100 may be circular, elliptical or triangular, and the shape of the auxiliary channel 100 may be arranged as desired. The tubular body 10 may be a circular tube.

The shape of the entire precursor tube 1 can be arranged as desired, in this embodiment, the cross section of the tube body 10 of the precursor tube 1 is arranged to be circular, the cross section of the leading end 20 of the precursor tube 1 is arranged to be flat, and the auxiliary channel 100 for mounting the precursor 2 is nested in the collecting channel 200 for mounting the image collecting member 3. The shapes of the collection channel 200 and the auxiliary channel 100 may be regular shapes or irregular shapes, respectively. Optionally, the collection channel 200 and the auxiliary channel 100 are each circular.

Further, the precursor kit 1000 comprises an expanding tube 5 and a suction device 6, wherein the expanding tube 5 and the suction device 6 are respectively disposed on the precursor tube 1. In detail, the extension pipe 5 is attached to the suction device 6, and the suction device 6 is attached to the precursor pipe 1. Most of the precursor tube 1 is located inside the extension tube 5 and the suction device 6, at least part of the precursor tube 1 is projected forward from the extension tube 5 to expose the leading end 20 of the precursor tube 1, and the precursor tube connector 4 located at the rear end of the precursor tube 1 is exposed outside the suction device 6. In other words, the extension tube 5, the suction device 6 and the precursor tube connector 4 are arranged in sequence in the precursor tube 1. In practical applications, the dilating tube 5 is brought to a desired position by the aid of the precursor tube 1, and then the precursor tube 1 is pulled out, so that the dilating tube 5 is left in the body and an operation passage is provided by the dilating tube 5.

The extension tube 5 and the suction device 6 are removably mounted to the precursor tube 1 so that the extension tube 5 and the suction device 6 can be used independently of the precursor tube 1. The expansion tube 5 is detachably mounted to the suction device 6 so that the expansion tube 5 can be used independently of the suction device 6. It will of course be appreciated by those skilled in the art that the expansion tube 5 and the vacuum connector 6 may be integrally formed, for example, as one piece.

More specifically, the extension tube 5 comprises an extension tube body 51, the extension tube body 51 has a front end and a rear end, and the front end of the extension tube body 51 and the leading end 20 of the precursor tube 1 are located on the same side. The extension pipe 5 has a first passage 510 penetrating from the front end to the rear end, and the precursor pipe 1 is attached to the first passage 510 of the extension pipe 5. The stent main body 51 can be torn toward the circumferential side at the rear end position thereof to extract the stent 5 without the need to extract a medical instrument when the first passage 510 of the stent 5 is disposed with the medical instrument.

Further, the expanding tube 5 may further include two holding heads 52, and the two holding heads 52 are disposed at the rear end of the expanding tube main body 51. When the operator needs to pull out or tear the expanding tube body 51, the operator can grip the two gripping heads 52 arranged at the rear end of the expanding tube body 51 to apply force to the expanding tube body 51.

Preferably, the holding head 52 is obliquely arranged on the expansion tube main body 51, and the included angle formed by the holding head 52 and the expansion tube main body 51 is oriented towards the front end of the expansion tube 5, so as to facilitate the force application of the operator towards the rear end of the expansion tube 5.

The suction device 6 may comprise a suction device body 61, a suction control tube 62 and a grip ring 63, wherein the suction device body 61 has a front end and a rear end, and the front end of the suction device body 61 and the leading end 20 of the precursor tube 1 are located on the same side. The suction device body 61 has a second passage 610 that passes through from the front end to the rear end of the suction device body 61. The first passage 510 of the dilation tube 5 is adapted to communicate with the second passage 610 of the suction device 6. The precursor tube 1 passes through the first passage 510 of the extension tube 5 and the second passage 610 of the suction device 6.

The suction control tube 62 and the grip ring 63 are respectively arranged on opposite sides of the suction device main body 61 and the suction control tube 62 extends obliquely from the front end toward the rear end of the suction device main body 61. When the operator operates the vacuum suction device, the index finger can pass through the holding ring 63, the thumb can press the suction control tube 62, and other fingers can abut against the other side of the suction control tube 62, so that the thumb can conveniently move along the suction control tube 62 to control the strength of the vacuum suction. Of course, it will be understood by those skilled in the art that this is by way of example only, and that the suction device 6 may be designed to be ergonomically friendly for the operator as desired.

Further, the suction control tube 62 of the suction device 6 is communicated with the second passage 610 of the suction device main body 61 so that an object is sucked under pressure to a negative pressure apparatus from the leading end of the expanding tube 5 through the first passage 510 of the expanding tube 5, the second passage 610 of the suction device 6 and the suction control tube 62 in this order after the suction control tube 62 is connected to the negative pressure apparatus. The suction control tube 62 is provided with a through hole to communicate with the second passage 610 of the suction device main body 61. The operator can control the magnitude of the negative pressure suction force by closing or opening the channel, for example, the operator can control the magnitude of the negative pressure suction force by pressing the through hole with a thumb. It is understood that the manner of the negative pressure suction control is not limited to this, for example, a valve may be provided at the position of the suction control tube 62, and the control of the magnitude of the negative pressure suction force may be realized by adjusting the flow rate of the suction control tube 62 by rotating a button.

Further, referring to fig. 6A and 6B, another embodiment of the precursor tube according to the above preferred embodiment of the present invention is illustrated. In this embodiment, the pilot end 20 is a separate component and is detachably mounted to the tubular body 10. The pilot tip 20 may be installed in alignment with the pipe body 10 such that the auxiliary channel 100 and the collecting channel 200 formed at the portion of the pipe body 10 and the auxiliary channel 100 and the collecting channel 200 formed at the portion of the pilot tip 20 are aligned with each other. In this embodiment, the pilot end 20 is screwed to the pipe body 20. It will be appreciated that the leading end 20 may be secured to the tubular body 10 by other means, such as snapping, gluing, etc.

Further, the operation of the precursor tube 1 can be roughly divided into three stages as follows:

first, the expansion phase

Referring to fig. 7A to 7C, the precursor tube 1 is fed along the precursor assembly 2, and at the same time, the orientation of the precursor tube 1 is timely adjusted based on the image information collected by the image pickup assembly 3. It is understood that the image acquisition member 3 is installed in the acquisition channel 200 of the precursor tube 1 and can be constrained by the acquisition port 201 of the precursor tube 1, so that the image acquisition member 3 can acquire image information of the precursor 2 and image information of the receiving port 101 of the precursor tube 1 and can be displayed on the display device 3000. If the image information about the environment near the receiving opening 101 of the precursor tube 1 collected by the image collecting member 3 is not clear during the process of feeding the precursor tube 1 along the precursor member 2, a visibility process can be performed by injecting a sterile or aseptic fluid into the collecting channel 200 through the injection channel of the precursor tube connector 4.

When the precursor tube 1 is inserted into position, the precursor tube 1 with the precursor tube connector 4 can be removed, leaving the extension tube 5 in the body, and the suction device 6 is mounted to the extension tube 5 and located outside the body. In other words, the extension tube 5 and the suction device 6 are installed at desired positions with the aid of the precursor tube 1, the precursor 2, and the image pickup member 3. The space previously provided by the dilation tube 5 and the suction device 6 for receiving the precursor tube 1 is available for receiving other instruments, and reference is made to the following steps.

It is worth mentioning that, referring to fig. 7B again, since the peripheral wall 30 of the tube forming the receiving opening 101 is protruded, a structure similar to a wing is formed at both sides of the precursor 2. On one hand, the precursor 2 is protected, the left-right shaking of the precursor 2 is reduced, the image acquisition part 3 can capture a relatively stable image, and on the other hand, the part of the pipe peripheral wall 30 which is convexly arranged is the foremost end of the whole precursor pipe 1 and is always in a visible state, so that an operator can conveniently enter the pipe.

Second, negative pressure suction stage

Referring to fig. 7D to 7F, a surgical device 7, such as a holmium laser lithotripter device, is inserted to a desired location along the second passage 610 of the suction device 6 and the first passage 510 of the dilation tube 5. The suction control tube 62 of the suction device 6 is adapted to be connected to a negative pressure apparatus to generate negative pressure. The holmium laser lithotripsy device is provided with a perfusion channel to convey fluid inwards, and a channel is formed between the holmium laser lithotripsy device and the expansion pipe 5 to discharge the fluid, so that an injection-outflow circulation is formed, and the intrarenal pressure is favorably maintained at a reasonable level. The operator can control the size of the negative pressure suction force by controlling the suction control tube 62 to suck out the crushed stone in the body. After the surgery is over, say after the stones in the kidney that are desired to be treated have been cleared, the holmium laser lithotripsy device can be withdrawn. It is of course understood that the type of the surgical device 7 is not limited to the holmium laser lithotripsy device exemplified, and may be an endoscope, a therapeutic drug or other instruments that can be used for observation, manipulation and treatment.

Third, tail sweeping stage

Referring to FIGS. 7G to 7J, the suction device 6 is detached from the expansion tube 5, and then an indwelling tube 8 is inserted from the first passage 510 along the expansion tube 5, and the indwelling tube 8 is indwelling in the human body. Applying a force to both of the gripping heads 52 of the expanding tube 5, the expanding tube 5 can be torn toward both sides of the indwelling tube 8, and thus peeled off from the expanding tube 5, thereby indwelling only the indwelling tube 8 in the human body.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. The precursor tube is suitable for arranging an image acquisition component and a precursor component and is characterized by comprising a tube body, a pilot end part, an acquisition channel and an auxiliary channel, the pilot end portion is provided at one end of the pipe body and the collecting passage and the auxiliary passage are respectively arranged to pass through the pipe body and the pilot end portion, wherein the image acquisition member and the precursor member are adapted to be arranged in the acquisition channel and the auxiliary channel, respectively, wherein the precursor tube is provided with a collecting port communicated with the collecting channel and a containing port communicated with the auxiliary channel at the leading end part, and the receiving port is arranged to extend forward relative to the collecting port to allow the precursor member protruding from the receiving port to be within an image collecting range of the image collecting member arranged in the collecting channel at the position of the receiving port.

2. A precursor tube as claimed in claim 1, in which the precursor member projecting from the receiving port is arranged to extend forwardly and obliquely towards the direction in which the image acquisition member extends.

3. A precursor tube as claimed in claim 2, wherein the precursor tube comprises a tube peripheral wall and a tube inner wall provided to the tube peripheral wall to separate at least part of the auxiliary passage and at least part of the collecting passage, wherein the tube peripheral wall part at the leading end for defining the auxiliary passage is arranged to be inclined towards the tube inner wall part to reduce the cross-sectional area of the corresponding auxiliary passage, so that the precursor member projecting from the receiving opening is inclined towards the collecting passage along the inclined tube peripheral wall.

4. A precursor tube as claimed in claim 3, in which the tube peripheral wall portion forming the receiving port is arranged to project from the tube inner wall to communicate the auxiliary passage and the collecting passage laterally of the auxiliary passage.

5. A precursor tube as claimed in claim 2, wherein the precursor tube comprises a tube peripheral wall and a tube inner wall arranged at the tube peripheral wall and separating at least part of the auxiliary channel and at least part of the collecting channel, wherein the tube peripheral wall part forming the receiving port is arranged to project from the tube inner wall to communicate the auxiliary channel and the collecting channel laterally to allow the precursor passing out of the receiving port to be tilted towards the collecting channel.

6. The precursor tube as claimed in claim 1, wherein the precursor tube comprises a tube peripheral wall and a tube inner wall, the tube inner wall being provided to the tube peripheral wall and separating at least part of the auxiliary passage and at least part of the collecting passage, wherein a peripheral edge of the tube peripheral wall portion forming the receiving opening is inwardly recessed to form a gap by which the collecting passage and the auxiliary passage are laterally communicated and the image collecting member mounted to the auxiliary passage is allowed to collect an image information of the precursor member located in the auxiliary passage through the gap.

7. A precursor tube as claimed in claim 2, wherein the precursor tube comprises a tube peripheral wall and a tube inner wall provided to the tube peripheral wall and separating at least part of the auxiliary passage and at least part of the collecting passage, wherein a periphery of the tube peripheral wall portion forming the receiving port is recessed inwardly to form a notch by which the collecting passage and the auxiliary passage are communicated laterally and an image information of the precursor member mounted to the auxiliary passage is allowed to be collected through the notch to the auxiliary passage.

8. A precursor tube as claimed in any of claims 1 to 7, in which the collecting channel has a central axis, and the axis along which the precursor members extend from the receiving port and the central axis have a point of intersection and the point of intersection is forward of the leading end.

9. A precursor tube as claimed in any one of claims 1 to 7, wherein the leading end has a leading end face, the leading end face comprising a receiving end face and a collecting end face, the collecting end face being arranged to extend obliquely forwardly relative to the receiving end face, wherein the receiving port is located at the receiving end face and the collecting port is located at the collecting end face.

10. A precursor tube as claimed in claim 9, wherein the leading end has a leading end peripheral surface arranged to extend rearwardly from a periphery of the leading end face, wherein the area of the cross-section formed around the leading end peripheral surface is arranged to taper from the tube body towards the leading end face, the tube body being a circular tube.

11. A pilot end adapted to be arranged in a tube to form a precursor tube, said precursor tube being adapted to be provided with an image acquisition member for acquiring an image and a precursor member adapted to guide said precursor tube, characterized in that said pilot end has a receiving opening and an acquisition opening and said precursor tube forms an acquisition channel and an auxiliary channel communicating with said receiving opening and said acquisition opening, respectively, wherein said image acquisition member and said precursor member are adapted to be arranged in said acquisition channel and said auxiliary channel, respectively, wherein said receiving opening is arranged to extend forward with respect to said acquisition opening to allow said precursor member protruding from said receiving opening to be in an image acquisition range of said image acquisition member arranged in said acquisition channel at said receiving opening position.

12. A leading end portion adapted to be disposed in a tube to form a precursor tube, the precursor tube adapted to be disposed with an image capturing member for capturing an image and a precursor member adapted to guide the precursor tube, it is characterized in that the pilot end part is provided with a containing port and a collecting port, the pilot forms a collecting channel and an auxiliary channel which are respectively communicated with the containing port and the collecting port, wherein the image acquisition member and the precursor member are adapted to be arranged in the acquisition channel and the auxiliary channel, respectively, wherein the precursor tube comprises an inner tube wall and a circumferential tube wall, the inner tube wall being arranged at the circumferential tube wall and separating at least part of the auxiliary channel and at least part of the collecting channel, wherein the tube peripheral wall portion forming the accommodation port is provided to protrude from the tube inner wall.

13. A leading end adapted to be arranged to a tube body to form a precursor tube adapted to be provided with an image pick-up member for picking up an image and a precursor member adapted to guide the precursor tube, characterized in that the leading end has a receiving opening and a pick-up opening, the precursor tube forms a pick-up channel and an auxiliary channel and communicates with the receiving opening and the pick-up opening, respectively, wherein the image pick-up member and the precursor member are adapted to be arranged to the pick-up channel and the auxiliary channel, respectively, wherein the precursor tube comprises a tube inner wall and a tube peripheral wall, the tube inner wall being arranged to the tube peripheral wall and separating at least part of the auxiliary channel and at least part of the pick-up channel, wherein a circumference of the tube peripheral wall part forming the receiving opening is inwardly recessed to form a gap, the gap is used for communicating the collecting channel and the auxiliary channel at the side and allowing the image collecting part arranged on the auxiliary channel to collect image information of the precursor part positioned on the auxiliary channel through the gap.

14. A precursor kit, comprising:

an image acquisition member;

a precursor element; and

a precursor tube, said precursor tube comprising a tube body and a pilot end and having a collecting channel and an auxiliary channel, said pilot end being disposed at one end of said tube body and said collecting channel and said auxiliary channel being disposed through said tube body and said pilot end, respectively, wherein said image capturing element and said precursor element are adapted to be disposed in said collecting channel and said auxiliary channel, respectively, wherein said precursor tube has a collecting port communicating with said collecting channel and a receiving port communicating with said auxiliary channel at said pilot end, and said receiving port is configured to extend forward relative to said collecting port to allow said precursor element protruding from said receiving port to be in an image capturing range of said image capturing element disposed in said collecting channel at said receiving port location.

15. A precursor assembly according to claim 14 wherein the precursor projecting from the receiving port is arranged to extend forwardly and obliquely towards the direction in which the image capture member extends.

16. A precursor kit as claimed in claim 15, in which the precursor tube comprises a tube peripheral wall and a tube inner wall disposed at the tube peripheral wall to separate at least part of the auxiliary passage from at least part of the collecting passage, wherein the tube peripheral wall portion at the leading end for defining the auxiliary passage is arranged to be inclined towards the tube inner wall portion to reduce the cross-sectional area of the corresponding auxiliary passage, such that the precursor protruding from the receiving port is inclined towards the collecting passage along the inclined tube peripheral wall.

17. A precursor kit according to claim 16 wherein the tube peripheral wall portion forming the receiving port is arranged to project from the tube inner wall to communicate the auxiliary channel and the collecting channel laterally of the auxiliary channel.

18. A precursor kit as claimed in claim 15, in which the precursor tube comprises a tube peripheral wall and a tube inner wall, the tube inner wall being disposed at the tube peripheral wall and separating at least part of the auxiliary channel and at least part of the collection channel, in which the tube peripheral wall portion forming the receiving port is arranged to project from the tube inner wall to communicate the auxiliary channel and the collection channel laterally, to allow the precursor passing out of the receiving port to be able to tilt towards the collection channel.

19. A precursor kit according to claim 14 wherein the precursor tube comprises a tube peripheral wall and a tube inner wall provided to the tube peripheral wall and separating at least part of the auxiliary passage and at least part of the collecting passage, wherein the circumference of the tube peripheral wall portion forming the receiving port is recessed inwardly to form a notch by which the collecting passage and the auxiliary passage are communicated laterally and the image collecting member mounted to the auxiliary passage is allowed to collect an image information of the precursor member located in the auxiliary passage through the notch.

20. A precursor kit as claimed in claim 15, wherein the precursor tube comprises a tube peripheral wall and a tube inner wall, the tube inner wall being provided at the tube peripheral wall and separating at least part of the auxiliary channel and at least part of the collecting channel, wherein the circumference of the tube peripheral wall part forming the receiving opening is recessed inwardly to form a gap by which the collecting channel and the auxiliary channel are laterally communicated and an image information of the precursor located in the auxiliary channel is allowed to be collected through the gap by the image collecting member mounted to the auxiliary channel, wherein the precursor kit further comprises an extension tube into which the precursor tube is inserted and from which at least part of the precursor tube projects forwardly to expose the leading end of the precursor tube, wherein the precursor kit further comprises a precursor tube connector, the precursor tube connector is adapted to be arranged in communication with the precursor tube and located at a free end of the precursor tube so as to project rearwardly from within the expansion tube, and comprises a main connector, an injection connector and a mounting connector and a connector having a main connection channel, an injection connection channel and a mounting connection channel, respectively, wherein the main connector is formed with the main connection channel, is adapted to be in communication with the collecting channel of the precursor tube, wherein the injection connector is formed with the injection connection channel, is adapted to be in communication with the main connection channel so as to be in communication with the collecting channel of the precursor tube, wherein the mounting connector is formed with the mounting connection channel, is adapted to be in communication with the auxiliary channel of the precursor tube, wherein the precursor kit further comprises a suction device mounted to the expansion tube and adapted to be in communication with the expansion tube, the suction device at one end of the expansion tube is adapted to generate a negative pressure to generate suction at the other end of the expansion tube, the tube body is a circular tube, and the leading end is a flat structure.