CN117357225B

CN117357225B - Puncture outfit

Info

Publication number: CN117357225B
Application number: CN202311666839.4A
Authority: CN
Inventors: 邱良; 曾义成; 肖元元
Original assignee: Cheng Du Xin Ao Guan Medical Equipment Co ltd
Current assignee: Cheng Du Xin Ao Guan Medical Equipment Co ltd
Priority date: 2023-12-07
Filing date: 2023-12-07
Publication date: 2024-03-15
Anticipated expiration: 2043-12-07
Also published as: CN117357225A

Abstract

The invention provides a puncture outfit, and relates to the technical field of medical appliances. The puncture outfit comprises: the device comprises a sleeve sheath, a converter and a core rod, wherein the converter is arranged in a sheath seat of the sleeve sheath, and the core rod is arranged in the converter in a sliding manner; the side wall of the sheath is internally provided with an annular mounting cavity, the outer side wall of the sheath is provided with a plurality of open slots communicated with the mounting cavity, the side wall of the sheath is internally provided with a plurality of mounting channels, and one end of each mounting channel extends to the end part of the sheath; the positioning air bag is arranged in the mounting cavity in a sliding manner; connecting pipes are arranged in each mounting channel, and one end of each connecting pipe is communicated with the positioning air bag; a header pipe arranged at one end of the connecting pipe far away from the positioning air bag; rotating teeth are arranged outside each connecting pipe; the driving gear is in annular arrangement and is meshed with the plurality of rotating teeth. The sleeve sheath is fixed by the positioning air bag in the using process, and the position of the positioning air bag can be adjusted according to the using requirement.

Description

Puncture outfit

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture outfit.

Background

The puncture outfit is a surgical instrument which is matched with minimally invasive equipment and provides an instrument channel for the minimally invasive surgery of the abdominal cavity and the pelvic cavity.

The puncture position of the existing puncture outfit is easy to loose in the use process, so that the puncture outfit is too deep in the abdominal cavity or slides out of the abdominal cavity, the viscera in the abdominal cavity are damaged, the secondary damage can be increased by re-puncture, and the safety of a patient in the operation process is affected.

Disclosure of Invention

The invention aims to solve the technical problems, and provides the puncture outfit, wherein the sleeve sheath is fixed through the positioning air bag in the use process, and the position of the positioning air bag can be adjusted according to the use requirement.

The technical scheme adopted by the invention is as follows:

a puncture outfit comprising: the device comprises a sleeve sheath, a converter and a core rod, wherein the converter is arranged in a sheath seat of the sleeve sheath, and the core rod is arranged in the converter in a sliding manner; the inner side wall of the sleeve sheath is internally provided with an annular mounting cavity, the outer side wall of the sleeve sheath is provided with a plurality of open grooves communicated with the mounting cavity, the inner side wall of the sleeve sheath is provided with a plurality of mounting channels along the circumferential direction of the inner side wall of the sleeve sheath, and one end of each mounting channel extends to the end part of the sleeve sheath;

the puncture outfit further comprises:

the positioning air bag is arranged in the mounting cavity in a sliding manner, when the positioning air bag is in a collapsed state, the positioning air bag is completely contained in the mounting cavity, and when the positioning air bag is in an inflated state, the positioning air bag extends out of the mounting cavity through the opening groove and forms a clamping groove for fixing the sleeve sheath;

the connecting pipes are arranged in each mounting channel, one end of each connecting pipe is communicated with the positioning air bag, and external threads are machined on the outer side wall of each connecting pipe;

the collecting pipes are arranged at one ends of the connecting pipes far away from the positioning air bags, and each connecting pipe is communicated with the collecting pipe;

the inner ring of the rotating teeth is provided with internal threads matched with the connecting pipes;

the driving gear is in annular arrangement and is meshed with the plurality of rotating teeth.

Optionally, the cannula sheath comprises:

the side wall of the sheath seat is provided with an adjusting opening;

the tube body is arranged at the bottom of the sheath seat, the mounting cavity is arranged in the side wall of the tube body, the open slot is arranged on the outer side wall of the tube body and communicated with the mounting cavity, and the plurality of mounting channels are arranged in the tube body and uniformly distributed along the circumferential direction of the tube body;

the separator is arranged in the sheath seat and divides the sheath seat into an installation area and a fixing area, and the converter is arranged in the fixing area; one end of the connecting pipe, the collecting pipe, the rotating teeth and the driving gear are arranged in the installation area, and the driving gear is exposed through an adjusting opening arranged on the sheath seat.

Optionally, the positioning airbag includes:

the inflation part is arranged in the mounting cavity and is communicated with the connecting pipe;

the positioning parts are respectively provided with a positioning part corresponding to each opening groove, the positioning parts are communicated with the inflating parts, and the positioning parts extend out of the mounting cavity through the opening grooves after inflating, and form clamping grooves.

Optionally, the positioning air bag is made of latex, and a layer of silica gel layer is wrapped outside the positioning air bag.

Optionally, the connecting tube and the collecting tube are integrally formed.

Optionally, the puncture outfit further comprises:

and the locking device is arranged on the sleeve sheath and is used for locking the driving gear.

Optionally, a slide way is arranged on the side wall of the sheath seat of the sleeve sheath; the locking device includes:

the sliding piece is arranged in the sleeve sheath, a mounting cylinder is arranged on the sliding piece and is arranged in the slideway in a sliding way, a limiting protrusion is arranged on the outer side wall of the mounting cylinder far away from one end of the sliding piece, and an external thread is arranged on the outer side wall of the mounting cylinder;

the locking piece is fixedly arranged at one end of the sliding piece, which faces the driving gear;

the pressing piece is arranged outside the sleeve sheath, a connecting cylinder is arranged on the pressing piece, a positioning piece matched with the limiting protrusion is arranged on the inner side wall of the connecting cylinder far away from the pressing piece, and an inner thread matched with the outer thread is arranged on the inner side wall of the connecting cylinder;

the positioning spring is arranged between the mounting cylinder and the connecting cylinder;

when the locking piece is abutted against the driving gear, the mounting cylinder is connected with the connecting cylinder through threads, the positioning spring arranged between the mounting cylinder and the connecting cylinder is compressed, and the sliding piece and the pressing piece are tightly attached to the side wall of the sleeve sheath to complete locking; when the height of the positioning air bag needs to be adjusted, the mounting piece is rotated, so that the threaded connection parts of the connecting cylinder and the mounting cylinder are separated, and unlocking is completed.

Compared with the prior art, the invention has the beneficial effects that:

1. in order to conveniently fix the cannula sheath on skin tissues, a positioning air bag is arranged on the side wall of the cannula sheath, and the fixation of the cannula sheath is realized through the positioning air bag.

2. The position of the positioning air bag can be adjusted according to the depth of the sleeve sheath entering the puncture hole in the use process so as to meet the use requirement.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a puncture outfit.

Fig. 2 is a schematic view of the puncture outfit in full section.

Fig. 3 is a schematic view of the structure of the puncture outfit with the locking device.

Fig. 4 is a schematic view of a partial enlarged structure at a in fig. 3.

Fig. 5 is a schematic view of a disassembled structure of the locking device.

Fig. 6 is a partial schematic view of the locking device.

Fig. 7 is a schematic view of the mating structure of the slider and the pressing member.

Fig. 8 is a schematic view of the structure of the positioning air bag of the puncture outfit in an inflated state.

Reference numerals:

1. a cannula sheath; 11. a mounting cavity; 12. an open slot; 13. a mounting channel; 14. a sheath seat; 141. a slideway; 15. adjusting the opening; 16. a tube body; 17. a partition plate; 18. a mounting area; 19. a fixed area;

2. a converter;

3. a core bar;

4. positioning the air bag; 41. a clamping groove; 42. an inflation part; 43. a positioning part;

5. a connecting pipe;

6. a header;

7. rotating the teeth;

8. a drive gear;

9. a locking device; 91. a slider; 92. a mounting cylinder; 93. a limit protrusion; 94. a locking member; 95. a pressing member; 96. a connecting cylinder; 97. a positioning piece; 98. a positioning spring; 99. an internal thread; 910. and (5) external threads.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present invention, it should be understood that the azimuth or positional relationship indicated by the terms "inner", "outer", "circumferential", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship conventionally put in place when the product of the present invention is used, or the azimuth or positional relationship conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and for simplicity of description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 8, an embodiment of the present invention provides a puncture outfit, including: a sheath 1, a converter 2 and a core rod 3, wherein the converter 2 is arranged in a sheath seat 14 of the sheath 1, and the core rod 3 is arranged in the converter 2 in a sliding way; the inside installation chamber 11 that is annular that is provided with of lateral wall of sheath 1, be equipped with a plurality of with the open slot 12 of installation chamber 11 intercommunication on the lateral wall of sheath 1, the inside wall of sheath 1 is provided with a plurality of installation passageway 13 along its circumference direction, the one end of installation passageway 13 extends to the tip of sheath 1.

The puncture outfit further comprises: the positioning air bag 4, the connecting pipe 5, the collecting pipe 6, the rotating teeth 7 and the driving gear 8 which are arranged in a ring shape. The positioning balloon 4 is mounted in the mounting cavity 11, and the positioning balloon 4 is completely accommodated in the mounting cavity 11 when the positioning balloon 4 is in a deflated state. When the positioning balloon 4 is in an inflated state, the positioning balloon 4 extends out through an opening groove 12 arranged on the sleeve sheath 1, and a clamping groove 41 is formed between the balloons extending out of the opening groove 12. In use, the puncture device is inserted into the patient and the cannula sheath 1 is secured within the puncture hole by the catch 41 formed by the balloon. More specifically, the clamping groove 41 formed by the air bag is clamped with the skin and meat tissue at the puncture hole.

A connecting pipe 5 is arranged in each mounting channel 13 and is communicated with the positioning air bag 4, and external threads are machined on the outer side wall of the connecting pipe 5. The other end of the connecting tube 5 is provided with a header 6 through which header 6 gas is supplied to the connecting tube 5 during use so that the positioning balloon 4 is in an inflated condition. Each connecting pipe 5 is provided with a rotating tooth 7, and an inner ring of the rotating tooth 7 is provided with an internal thread matched with the connecting pipe 5. The driving gear 8 is sleeved outside the plurality of rotating teeth 7 and meshed with the plurality of rotating teeth 7.

When the device is used, the puncture device is penetrated into the puncture hole, then the position of the positioning air bag 4 is adjusted through the driving gear 8 (the rotating teeth 7 are relatively fixed and meshed with the driving gear 8, and external threads are machined on the outer side wall of the connecting pipe 5 and matched with internal threads in the inner ring of the rotating teeth 7, so that the rotating teeth 7 and the connecting pipe 5 form a structure similar to a screw rod pair, a screw rod is fixed in the moving process, and the screw rod moves). After being adjusted in place, the air is communicated with the collecting pipe 6 through external equipment, air is supplied to the collecting pipe 6 through the external equipment, and the air enters the positioning air bag 4 through the connecting pipe 5. The positioning air bag 4 stretches out through the open slot 12 in the inflation process, and the sleeve sheath 1 is fixed on skin tissues after stretching out, and the positioning air bag 4 is fixed by inflation, so that the thickness of the skin tissues of a patient can be adjusted when the device is used.

In one embodiment, as shown in fig. 2, the cannula sheath 1 comprises: sheath holder 14, tube 16 and spacer 17. An adjustment opening 15 is provided in the side wall of the sheath holder 14. The body is installed in the bottom of sheath seat 14, and installation cavity 11 sets up in the lateral wall of body 16, and open slot 12 sets up on the lateral wall of body 16 to communicate with installation cavity 11. The plurality of mounting channels 13 are provided in the pipe body 16 and are uniformly distributed in the circumferential direction of the pipe body 16. The partition 17 is installed in the sheath holder 14 and divides the sheath holder 14 into an installation region 18 and a fixing region 19. The transducer 2 is mounted in a fixed area 19, one end of the connecting tube 5, the header 6, the rotating teeth 7 and the driving gear 8 are mounted in a mounting area 18, and the driving gear 8 is exposed through an adjustment opening 15 provided in the sheath holder 14.

In use, in order to avoid interference between the transducer 2 and one end of the connecting tube 5, the header 6, the rotating teeth 7 and the driving gear 8, the interior of the sheath holder 14 is divided into an installation region 18 and a fixed region 19 by a partition 17, the transducer 2 is installed in the fixed region 19, and one end of the connecting tube 5, the header 6, the rotating teeth 7 and the driving gear 8 are installed in the installation region 18. In order to facilitate the adjustment of the position of the positioning balloon 4, the mounting cavity 11 and the mounting channel 13 are provided in the tube body 16.

In one embodiment, as shown in fig. 2 and 8, the positioning balloon 4 includes: an inflating portion 42 and a positioning portion 43, the inflating portion 42 being provided in the installation cavity 11 and communicating with the connection pipe 5. A positioning part 43 is arranged corresponding to each open slot 12, the positioning part 43 is communicated with the inflating part 42, a clamping groove 41 is formed in the middle of the positioning part 43 after the inflating part is inflated, and the clamping groove 41 is clamped on skin tissues, so that the cannula sheath 1 is fixed on the puncture hole.

In one embodiment, the positioning balloon 4 is made of latex in order to reduce the cost of using the puncture outfit. In order to improve the use comfort of the positioning air bag 4, a layer of silica gel layer is wrapped outside the positioning air bag 4.

In one of the embodiments, the connection pipe 5 and the header pipe 6 are designed as an integrally formed structure in order to facilitate the inflation of the positioning airbag 4.

In one embodiment, as shown in fig. 3, the puncture instrument further comprises: a locking device 9, the locking device 9 is arranged on the casing sheath 1 and is used for locking the driving gear 8.

More specifically, as shown in fig. 4, a slide 141 is disposed on a side wall of the sheath holder 14 of the sheath 1.

As shown in fig. 3, 4, 5, 6 and 7, the locking device 9 includes: a slider 91, a lock 94, a pressing member 95, and a positioning spring 98; the sliding member 91 is installed in the sheath 1, the sliding member 91 is provided with an installation cylinder 92, and the installation cylinder 92 extends into the slideway 141. The outer side wall of one end of the mounting cylinder 92 far away from the sliding piece 91 is provided with a limiting protrusion 93, and the outer side wall of the mounting cylinder 92 is provided with a circle of external threads 910. The locking member 94 is fixedly provided at the bottom of the slider 91 and extends toward one end of the drive gear 8. The pressing piece 95 is arranged on the outer side of the sleeve sheath 1, a connecting cylinder 96 is arranged on the side wall, facing the sleeve sheath 1, of the pressing piece 95, and an inner thread 99 matched with the outer thread 910 is arranged on the outer side wall of the connecting cylinder 96. The inner side wall of the connecting cylinder 96 is provided with a positioning member 97 fitted with the limiting projection 93 at an end away from the pressing member 95. A positioning spring 98 is mounted between the connecting cylinder 96 and the mounting cylinder 92.

When the height of the positioning air bag 4 needs to be adjusted, the locking piece 94 needs to be separated from the top of the driving gear 8, so that the locking piece 94 is prevented from being damaged due to overlarge friction force. Firstly, the pressing piece 95 rotates, so that the connecting cylinder 96 arranged on the pressing piece 95 is separated from the mounting cylinder 92 arranged on the sliding piece 91 (i.e. in threaded fit separation), under the action of the positioning spring 98, the pressing piece 95 is ejected out (after separation, the limiting protrusion 93 arranged on the mounting cylinder 92 and the positioning piece 97 arranged in the connecting cylinder 96 are used for limiting, so that the normal use of the device is prevented from being influenced by the separation of the sliding piece 91 and the pressing piece 95), and a gap is reserved between the pressing piece 95 and the side wall of the sleeve sheath 1, so that the sliding piece 91 can be driven to move up and down in the slide way 141.

When the driving gear 8 needs to be fixed, the pressing piece 95 drives the sliding piece 91 to move downwards in the sliding groove, so that the locking piece 94 fixedly arranged on the sliding piece 91 is in contact with the driving gear 8, then the pressing piece 95 rotates, the connecting cylinder 96 on the pressing piece 95 is in threaded fixation with the mounting cylinder 92 on the sliding piece 91, the positioning spring 98 arranged between the connecting cylinder 96 and the mounting cylinder 92 is compressed, and at the moment, the pressing piece 95 and the sliding piece 91 are tightly attached to the side wall of the sleeve sheath 1.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A puncture outfit comprising: the device comprises a sleeve sheath, a converter and a core rod, wherein the converter is arranged in a sheath seat of the sleeve sheath, and the core rod is arranged in the converter in a sliding manner; the sleeve sheath is characterized in that an annular mounting cavity is formed in the side wall of the sleeve sheath, a plurality of open grooves communicated with the mounting cavity are formed in the outer side wall of the sleeve sheath, a plurality of mounting channels are formed in the inner side wall of the sleeve sheath along the circumferential direction of the inner side wall of the sleeve sheath, and one end of each mounting channel extends to the end of the sleeve sheath;

the puncture outfit further comprises:

2. The penetrator of claim 1, wherein the cannula sheath comprises:

the side wall of the sheath seat is provided with an adjusting opening;

3. The puncture outfit of claim 1, wherein said positioning balloon comprises:

4. A puncture outfit according to claim 1 or 3, wherein the positioning air bag is made of latex, and a layer of silica gel layer is wrapped outside the positioning air bag.

5. The puncture outfit of claim 1, wherein said connecting tube and said header are of an integrally formed construction.

6. The puncture instrument according to claim 1, further comprising:

7. The puncture outfit according to claim 6, wherein a slide way is arranged on the side wall of the sheath seat of the sheath; the locking device includes: