CN116350157A - an endoscope - Google Patents

Abstract

The application provides an endoscope, including an operating part, a mirror tube, a head end and a transmission part, the head end includes a body, an imaging element and an illumination element; the proximal end of the transmission part is connected Connect to imaging element. Wherein, the body has a housing cavity, and the imaging element is hinged to the body so that it is suitable for rotating around the first rotating shaft in the housing cavity; the connection point between the transmission part and the imaging component is far away from the first rotation shaft, and the operating part controls the movement of the transmission part along the mirror tube. When moving along the length direction, the distal end of the transmission member drives the imaging element to rotate; the main body includes a transparent cover matched with the imaging element and the lighting element. The mirror tube can include a bendable section, or a hard tube made by injection molding; the mirror tube can also be provided with an instrument channel. The transmission member can be a connecting rod or a drag cable. The illuminating element can be fixed to the imaging element, and the illuminating element can also be rotatably arranged and the angle can be adjusted through the transmission member. The application realizes the angle adjustment of the imaging element and the lighting element with a simple and low-cost structure.

Description

an endoscope

technical field

The present application relates to the technical field of medical devices, in particular to an endoscope.

Background technique

Endoscope is the mainstream instrument for uterine surgery and other treatment methods, and is widely used in diagnosis and minimally invasive treatment. Minimally invasive, precise, and rapid diagnosis and treatment have become more and more clinical needs, among which the demand for minimally invasive diagnosis and treatment in gynecology is the most obvious. In the minimally invasive diagnosis and treatment of gynecology, a large number of patients with irregular vaginal bleeding and infertility urgently need early examination, early diagnosis and early treatment.

In the inspection or operation process, in order to allow the operator to see the overall situation of the operation site clearly, a bendable tube is usually set at the front of the mirror tube of the endoscope, and the head with imaging elements such as a camera is bent by bending the mirror tube. The end faces the site that needs to be observed or operated on. However, these technical solutions have certain limitations, requiring a larger space for the bendable tube to bend, and cannot be applied when the mirror tube is a hard tube. Therefore, if the angles of the imaging element and the lighting element can be adjusted without bending the mirror tube, the inspection efficiency of the endoscope can be significantly increased and the adaptability of the application can be improved.

Contents of the invention

In view of the above deficiencies in the prior art, the purpose of the present application is to provide an endoscope that can adjust the angle of the imaging element or the lighting element without bending the mirror tube.

In order to achieve the above purpose, the present application provides the following technical solutions. An endoscope, comprising: an operating part, provided with an operating part; a mirror tube, whose proximal end is connected to the operating part; a head end, connected to the distal end of the mirror tube, including a body, an imaging element and an illuminating element; The transmission part is connected to the operating part at the proximal end and connected to the imaging element at the far end; the transmission part is a first cable; wherein, the body has an accommodating cavity, and the imaging element is hinged to the body , so that it is suitable for rotating around a first rotation axis in the accommodating cavity; the connecting point of the transmission member and the imaging element is far away from the first rotation axis, and the operating member controls the transmission member to move along the mirror When the length direction of the tube moves, the distal end of the transmission member drives the imaging element to rotate; the body includes a transparent structure, and the transparent structure is matched with the imaging element and the lighting element; the first pull The number of cables is one, and the imaging element is also connected to the body through an elastic member that is always tensioned. The operating member pulls the first cable to drive the imaging element to rotate, and at the same time makes the elastic member Further tension, when the operating member releases the first cable, the elastic member rotates the imaging element.

In some embodiments, the first cable is formed by a wire harness of the imaging element and/or a wire harness of the lighting element.

In some embodiments, the elastic member is a coil spring.

In some embodiments, the body includes a transparent cover at the distal end of the body.

In some embodiments, the transparent cover includes a hemispherical shell structure, and the imaging element is located at least partially inside the hemispherical shell.

In some embodiments, the lighting element is fixed to the imaging element.

In some embodiments, the mirror tube is a hard tube, and the mirror tube is made by integral injection molding; the mirror tube has a return channel; the transmission member penetrates into the accommodation cavity from the return channel, and the transmission There is a sealed connection between the part and the body; or, the mirror tube also has a channel through which a transmission part passes, and the transmission part penetrates into the accommodating cavity from the passage through which the transmission part passes through, and the transmission part passes through The channel is also used for routing the wiring harnesses of the imaging element and the lighting element.

In some embodiments, the mirror tube is a hard tube, and the mirror tube has a backflow channel and an instrument channel arranged side by side; the head end is connected to the far end of the backflow channel; the first rotation axis is perpendicular to the The axis of the mirror tube is set, and when the imaging element rotates, its shooting direction rotates toward the instrument channel or away from the instrument channel.

In some embodiments, the mirror tube is a hard tube, and the mirror tube has a backflow channel and an instrument channel arranged side by side; the head end is connected to the far end of the backflow channel; the first shaft and the The axes of the mirror tube form an acute angle, so that the shooting direction of the imaging element always deviates to the instrument channel.

In some embodiments, the mirror tube includes a bendable tube, and the bendable tube is arranged at the distal end of the mirror tube; the operating part further includes an adjustment handle, and the adjustment handle is connected with the second pull cable The head end is connected to adjust the bending degree of the bendable tube by operating the adjustment handle; the rotation direction of the bendable tube and the rotation direction of the imaging element are perpendicular to each other.

The present application also relates to another endoscope, comprising: an operating part, provided with an operating part; a mirror tube, whose proximal end is connected to the operating part; a head end, connected to the distal end of the mirror tube, including a main body, an imaging Components and lighting elements; a transmission part, the proximal end is connected to the operating part, and the far end is connected to the lighting element; the transmission part is a first cable; wherein, the body has a housing cavity, and the lighting element Hinged to the body so that it is suitable for rotating around a second rotating shaft in the accommodating cavity; the connecting point of the transmission member and the lighting element is far away from the second rotating shaft, and the operating member controls the transmission When the member moves along the length direction of the mirror tube, the distal end of the transmission member drives the lighting element to rotate; the body includes a transparent structure, and the transparent structure is matched with the imaging element and the lighting element; The number of the first cable is one, and the lighting element is also connected to the body through an elastic member that is always tensioned. The operating member pulls the first cable to drive the lighting element to rotate, and at the same time The elastic member is further tensed, and when the operating member releases the first cable, the elastic member rotates the lighting element.

In some embodiments, the imaging element is rotatably disposed in the accommodating cavity, and the rotation of the illumination element and the imaging element are independently adjustable.

Each embodiment of the present application has at least one of the following technical effects:

1. Using miniaturized imaging elements and lighting elements, the imaging element can be rotated inside the housing cavity at the head end through a simple structure, which can increase the field of view of the endoscope without bending the mirror tube, and improve inspection efficiency and application scope;

2. The rotation of the imaging element is driven by the push and pull of the connecting rod, and the operation is simple and reliable;

3. The rotation control of the imaging element is realized by the cable and the elastic member, so that the adjustment structure of the imaging element of the present application can also be applied to the bendable mirror tube, further increasing the observation efficiency of the mirror tube;

4. By setting the chute on the lug of the imaging element and hanging the connecting rod in the chute, the operation of adjusting the angle of the imaging element through the push and pull of the connecting rod can be smooth and reliable;

5. The imaging element is always tensioned by setting elastic parts, so that the angle adjustment is smooth and the attitude of the imaging element is more stable;

6. More flexible lighting can be achieved by fixing the lighting element to the imaging element, or by rotating the lighting element and adjusting it through the transmission;

7. By arranging the instrument channel and the return channel side by side, the cross-section of the instrument channel can be enlarged, and at the same time, the imaging element can be set toward the instrument channel, or the imaging element can be adjusted to face the instrument channel, which can achieve more accurate observation during the operation and lighting;

8. By setting a transparent cover including a hemispherical shell structure at the far end of the head end, and setting part or all of the imaging elements in the transparent cover, the scope of the observation field of view can be significantly increased;

9. Using the wiring harness of the imaging element or the lighting element as the first cable can reduce the number of parts and reduce the cost.

Description of drawings

In the following, preferred embodiments will be described in a clear and understandable manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention will be further described.

Fig. 1 is a side sectional view along a longitudinal section of an endoscope of an embodiment;

Fig. 2 is the plan view of the partial structure of the endoscope of Fig. 1 embodiment;

Fig. 3 is the view of the mirror tube of Fig. 1 embodiment on the head end side;

Fig. 4 is an enlarged view of part A in Fig. 1;

Fig. 5 is an enlarged view of part B in Fig. 4;

Fig. 6 is a kind of variation mode of Fig. 4 structure;

Fig. 7 is a partial view of the structure of Fig. 6 from another perspective;

Fig. 8 is a kind of regulation state of Fig. 6 structure;

Fig. 9 is another adjustment state of Fig. 6 structure;

Figure 10 is a variation of the structure in Figure 6;

Fig. 11 is another variation of the structure in Fig. 6;

Fig. 12 is another variation of the structure in Fig. 6;

Explanation of reference numbers:

100. Operating part, 110. Return tube, 120. Operating part, 200. Mirror tube, 201. Return hole, 202. Return channel, 203. Instrument channel, 204. Return interface, 205. Axis of mirror tube, 300. Head end, 301. first rotating shaft, 302. accommodating chamber, 310. body, 311. transparent cover, 320. imaging element, 321. third lug, 322. first lug, 3221. chute, 323. pin shaft , 324. Second lug, 330. Lighting element, 400. Transmission member, 500. Elastic member.

Detailed ways

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation manners of the present application will be described below with reference to the accompanying drawings. The drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings and other implementations can also be obtained according to these drawings without creative work. Way.

In order to keep the drawings concise, each drawing only schematically shows the parts relevant to the present application, and they do not represent the actual structure of the product. For components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one". The term "and/or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations. The terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

Embodiment one. As shown in FIG. 1 , this embodiment is an endoscope, specifically a rigid hysteroscope. This embodiment includes an operating part 100 , a mirror tube 200 , a head end 300 and a transmission member 400 . The operating part 100 is provided with an operating part 120 for cooperating with the transmission part 400 and is configured as a knob or an operating handle according to the type of the transmission part 400 . The proximal end of the mirror tube 200 is connected to the operating part 100, and is used for setting the return flow channel 202, the instrument channel 203, and passing through the transmission member 400 and the wire harness. The head end 300 is connected to the distal end of the mirror tube 200 , and as shown in FIG. 3 , the head end 300 includes a body 310 , an imaging element 320 and an illumination element 330 . The proximal end of the transmission member 400 is connected to the operating member 120 , and the distal end is connected to the imaging element 320 .

Wherein, as shown in FIG. 4 , the body 310 has a hollow structure, and an accommodating chamber 302 is disposed inside. The imaging element 320 is disposed in the accommodating cavity 302 and hinged to the body 310 . As shown in FIG. 7 , the hinged connection makes the imaging element 320 suitable for rotating around the first rotating shaft 301 in the accommodating cavity 302 , and the first rotating shaft 301 is formed by two oppositely disposed third lugs 321 . The connection point between the transmission member 400 and the imaging element 320 is far away from the first rotating shaft 301, so that the force applied by the transmission member 400 to the imaging element 320 has a moment arm relative to the first rotating shaft 301, so that the transmission member 400 can exert a force on the imaging element 320. Torque around the first axis of rotation 301 . When the operating member 120 controls the transmission member 400 to move along the length direction of the mirror tube 200 , the distal end of the transmission member 400 drives the imaging element 320 to rotate around the first rotating shaft 301 . The main body 310 includes a transparent structure, and the transparent structure is matched with the imaging element 320 and the lighting element 330, so that the imaging element 320 can take pictures through the transparent structure in any posture; when the lighting element 330 is also located in the accommodation cavity 302 , the transparent structure also ensures that the illuminating element 330 can provide illumination for the site requiring observation or surgery; as shown in FIG. Protective structures at the ends, such as transparent end caps.

As shown in FIG. 7 , the first rotating shaft 301 of this embodiment is perpendicular or approximately perpendicular to the axis 205 of the mirror tube. The axis at the junction of the end and the head end 300. As shown in FIG. 1 and FIG. 2 , the mirror tube 200 of this embodiment is made by integral injection molding, and includes a return channel 202 and an instrument channel 203 arranged side by side. The backflow channel 202 and the instrument channel 203 arranged side by side are relatively independent, and, compared with the tubular instrument channel pierced in the backflow channel 202 in the prior art, they can have a larger cross-sectional area, so that the cross-section is smaller. Large surgical instruments.

The transmission member 400 penetrates the return channel 202 from the operating part 100 through the sealing penetration structure, and enters the accommodating cavity 302 after penetrating the main body 310 in the return channel 202 . The return channel 202 is also used as a distribution channel for the transmission part 400 and the wire harness of the head end 300. At this time, the wire harness of the head end 300, such as the wire harness of the imaging element 320 and the lighting element 330, needs to use a waterproof cable; at the same time, the transmission part 400 and the head end The body 310 of the end 300 needs to be configured as a sealed sliding connection.

As shown in Figure 2, the mirror tube 200 and the head end 300 of the present embodiment can be used as an independently produced insert module, and the outside of the mirror tube 200 far-end is provided with a plurality of backflow holes 201, and the backflow liquid flows into the figure through the backflow holes 201 1 or the return channel 202 shown in FIG. In this embodiment, the structure of the operating part 100 , the connection mode and the driving mechanism of the transmission member 400 and the operating member 120 are all in the prior art, so they are not specifically shown or described in detail.

As shown in FIG. 4 , the transparent structure of the head end 300 in this embodiment includes a transparent cover 311 disposed on the body 310 , and the transparent cover 311 is located at the distal end of the body 310 . The transparent cover 311 is composed of a hemispherical shell structure, and the front end portion of the imaging element 320 is located inside the hemispherical shell. The transparent cover 311 can be hermetically connected to the main structure of the body 310 by bonding, welding and the like. The hemispherical shell-shaped transparent cover 311 can ensure that the imaging element 320 has an unobstructed shooting field of view within a relatively large rotation range. But the structure shown in Fig. 4 is only a preferred structure, when the rotation range of the imaging element 320 is small, the transparent structure of the head end 300 can also be realized by the far-end transparent end cap that is planar; The head end 300 is made of transparent plastic; the transparent cover 311 can also be a structure connected by a cylindrical transparent tube and a hemispherical shell, and the imaging element 320 is integrally arranged in the transparent cover 311, and the imaging element 320 is hinged to the transparent cover 311, so as to ensure the maximum field of view of the imaging element 320, even when the imaging element 320 adopts a wide-angle lens, an unobstructed field of view can be obtained during rotation.

As shown in FIGS. 3 and 4 , when the imaging element 320 rotates, its shooting direction rotates toward the instrument channel 203 or away from the instrument channel 203 , that is, the first rotation axis 301 is roughly parallel to the boundary between the return channel 202 and the instrument channel 203 , The parallel arrangement of the instrument channel 203 and the return channel 202 facilitates the provision of video feedback for surgical instruments that are biased to one side. Of course, the instrument channel 203 and the return channel 202 in this embodiment may not be provided to form a simple version of the endoscope for observation only. At this time, the first rotation axis 301 of the imaging element 320 may not be limited to a certain direction.

As a variation of this embodiment, the mirror tube 200 may not be made by integral injection molding, but may be made by extrusion molding or welding. The mirror tube 200 can also be configured as a three-cavity structure, that is, it includes a channel through which the transmission member passes through, and is used for passing the wire harness of the transmission member 400 and the head end 300 . At this time, the transmission member 400 passes through the transmission member passing channel from the operation part 100 , and passes through the transmission member passing passage into the body 310 and then enters the accommodating cavity 302 , and is connected to the imaging element 320 . The endoscope of the present application can also be used in other forms of endoscopes such as colonoscopes and gastroscopes except hysteroscopes.

The imaging element 320 of this embodiment can be composed of a lens and a CCD or CMOS photosensitive chip, and the structure has been miniaturized so far, so that it is possible to rotate the imaging element 320 in the accommodation cavity 302 of the head end 300 in this application. The lighting element 330 in FIG. 3 can be white LED, which is easier to arrange than optical fiber, and the cost is lower, and it can also be made into a small-sized element. As a variation of this embodiment, the illuminating element 330 can also be fixed to the imaging element 320 in the accommodating cavity 302 so as to be able to rotate together with the imaging element 320 so that the shooting target of the imaging element 320 is always well illuminated.

In this application, by setting the imaging element 320 to be rotatable, and cooperating with the overall rotation of the mirror tube 200 and the endoscope around the axis, the endoscope can obtain a more comprehensive and clear view in a limited space without bending the mirror tube 200; Moreover, the adjustment structure of the imaging element 320 is simple and reliable, the cost is low, and the operation is relatively simple and convenient.

Embodiment two. On the basis of the first embodiment, this embodiment provides a specific connection manner between the transmission member 400 and the imaging element 320 . As shown in Figures 4 and 5, the imaging element 320 has two third lugs 321 protruding from both sides in the radial direction. The rotating shaft 301 enables the imaging element 320 to rotate around the first rotating shaft 301 .

The transmission part 400 of this embodiment is a connecting rod (in this embodiment, the transmission part 400 and the connecting rod both refer to the same part), and the transmission part 400 penetrates into the accommodating cavity 302 through the return channel 202 of the mirror tube 200 or the transmission part penetration channel, And slide through the body 310 , the operating member 120 drives the imaging element 320 to rotate through the push-pull link. The imaging element 320 is roughly cylindrical as a whole, and a first lug 322 is provided on a side staggered by a quarter of the circumference from the two third lugs 321 , and the distal end of the connecting rod, that is, the transmission member 400 is rotated through a pin 323 Connects to the first lug 322 . At this time, when the operating member 120 pushes and pulls the transmission member 400 , the transmission member 400 can apply a torque to the imaging element 320 to rotate around the first rotating shaft 301 formed by the third lug 321 .

When the transmission member 400 is sealed and slidably arranged on the body 310, the radial distance between the pin shaft 323 and the axis 205 of the mirror tube or the third lug 321 will change when the transmission member 400 moves back and forth to drive the imaging element 320 to rotate. Therefore, the transmission member 400 is configured to be elastic, for example, it can be made of a thin metal rod or a plastic rod. When the passage for passing through the transmission part is provided, since the transmission part 400 and the passage for passing the transmission part do not need to slide and fit to form a sealing structure, the transmission part 400 can be set as a rigid metal connecting rod.

In this embodiment, the third lug 321 cooperates with the shaft hole on the body 310 to form a hinged structure, but it can also be realized in other ways, for example, through the cooperation of the protrusion provided on the body 310 and the shaft hole provided on the imaging element 320, or It is realized by a pin shaft passing through the imaging element 320 and the body 310 .

Embodiment three. This embodiment is a variation of the second embodiment. The difference between this embodiment and Embodiment 2 is that, as shown in Figure 6 and Figure 7, the first lug 322 of this embodiment has a chute 3221, and the far end of the connecting rod, that is, the transmission part 400, is hung on the chute 3221 , the distal end of the transmission member 400 can slide back and forth in the sliding groove 3221 along the length direction of the sliding groove 3221 . Specifically, as shown in FIG. 7 , the distal end of the transmission member 400 has a bent structure, so that a small section of the transmission member 400 is inserted into the slide groove 3221 along the thickness direction of the first lug 322 , that is, the direction of the first rotating shaft 301 .

The advantage of the above arrangement is that, as shown in Fig. 8 and Fig. 9, when the transmission member 400 is sealed and slidably penetrated on the body 310, when the transmission member 400 moves in the front-rear direction (ie, the left-right direction in the figure), the transmission member 400 The distal end of the sliding groove 3221 can slide back and forth, so as to prevent the transmission member 400 from being subjected to a lateral force and causing its forward and backward movement to be blocked, thereby affecting the smooth adjustment of the angle of the imaging element 320 . Through the setting of the sliding groove 3221, the rotation range of the imaging element 320 can reach more than 90 degrees.

As shown in FIG. 6 , as a variation of this embodiment, an elastic member 500 may also be provided for the imaging element 320 . Specifically, the imaging element 320 has a first lug 322 and a second lug 324 disposed opposite to each other on both sides of the first rotating shaft 301 , or in other words, the first lug 322 and the second lug 324 are disposed opposite to the third lug. 321 sides that are circumferentially staggered by 90 degrees. The second lug 324 is connected to the body 310 through an elastic member 500 that is always tensioned, and the elastic member 500 can be realized by a structure such as a coil spring or a reed. When the operating member 120 drives the transmission member 400 to pull or push the first lug 322 to rotate the imaging element 320 , it also makes the elastic member 500 tense or loosen. The arrangement of the elastic member 500 can eliminate the gap between the transmission member 400 and the imaging element 320 , and avoid shaking and instability of the imaging element 320 during rotation and after adjustment.

Another advantage of setting the elastic member 500 is that the connection mode between the transmission member 400 and the imaging element 320 can be more flexible. For example, the transmission member 400 only needs to push or pull the imaging element 320 through surface contact, without being hinged by the pin shaft 323, and without Hang the transmission member 400 into the sliding groove 3221 . FIG. 12 shows a structure in which the transmission member 400 only pulls the imaging element 320 , and the scheme of only pushing can be similarly arranged. Cooperating with the pulling or pushing force of the transmission member 400 , the imaging element 320 is kept in contact with the transmission member 400 by utilizing the restoring force of the elastic member 500 .

Embodiment four. This embodiment is another variation of the second embodiment. As shown in FIG. 11 , the difference between the present embodiment and the second embodiment is that the transmission member 400 is a first cable made of steel wire. Specifically, the number of the first cables is two, and the connecting points of the two first cables and the imaging element 320 are far away from each other, and are arranged away from the first rotating shaft 301 . The operating member 120 drives the imaging element 320 to rotate by pulling the first cable on one side. As shown in FIG. 11 , the first cable can be respectively connected to the first lug 322 and the second lug 324 disposed on opposite sides of the imaging element 320 . The connection method between the first cable and the operating member 120 is the prior art, which is common in endoscopes provided with bendable tubes, so it will not be described in detail.

As a variation of this embodiment, the number of the first cable can also be one, which is connected to the first lug 322 of the imaging element 320; The elastic member 500 is connected to the body 310 , specifically, a coil spring as shown in FIG. 6 can be used as the elastic member 500 , and the connection structure can also be set with reference to FIG. 6 . When the operating member 120 pulls the first cable to drive the imaging element 320 to rotate, the elastic member 500 is further tensioned; when the operating member 120 releases the first cable, the restoring force of the elastic member 500 causes the imaging element 320 to rotate in the opposite direction.

When a flexible cable is used as the transmission member 400 , the present application can also be applied to the flexible mirror tube 200 . As a variation of this embodiment, the mirror tube 200 includes a bendable tube, which is arranged at the far end of the mirror tube 200; the operating part 100 also includes an adjustment handle, which is connected to the head end 300 through a second cable to Adjust the bending degree of the bendable pipe by operating the adjustment handle. The rotation direction of the bendable tube and the rotation direction of the imaging element 320 are perpendicular to each other, so that the bendable tube and the imaging element 320 cooperate with each other to obtain a larger observation range.

As another variation of this embodiment, the first cable may also be composed of a wire harness of the imaging element 320, or a wire harness of the lighting element 330, or a combination thereof. Since the adjustment torque required by the imaging element 320 is very small, part of the wiring harness of the imaging element 320 or the lighting element 330 can be configured as a steel cable with an insulating outer layer, and it is mechanically connected to the proximal end of the imaging element 320 and The operating member 120 functions as a first cable.

Embodiment five. This embodiment is also a variation of the second embodiment. The transmission member 400 is still a rigid connecting rod. The difference between this embodiment and the second embodiment is that the operating member 120 includes a knob that is rotatably arranged on the operating part 100, and the connecting rod penetrates into the accommodation chamber 302 through the mirror tube 200, and the connecting rod The screw and the knob form a thread pair, and when the knob is turned, the connecting rod is driven to move forward or backward along the axis of the mirror tube 200 , thereby driving the imaging element 320 to rotate. The connection method of the knob and the connecting rod in this embodiment is the prior art, so the specific structure is not shown in the figure, and the connection method between the front end of the connecting rod and the imaging element 320 can adopt any method in the foregoing embodiments.

Embodiment six. This embodiment is also a variation of the second embodiment. In Embodiment 2 or Embodiment 3, as shown in FIG. 7 , the first rotating shaft 301 is arranged perpendicular to the axis 205 of the mirror tube; at this time, the entire field of view formed by the rotatable imaging element 320 is relative to the axis 205 of the mirror tube Symmetrically distributed. The difference of this embodiment is that, as shown in FIG. 10 , the first rotating shaft 301 and the axis 205 of the mirror tube form an acute angle, so that the shooting direction of the imaging element 320 is always biased to one side of the instrument channel 203 . As shown in Fig. 4, the front end face of the instrument channel 203 of the present embodiment is arranged obliquely, makes the instrument channel 203 have the opening of larger area, is convenient to have the operation of the surgical instrument with movable parts such as forceps or scissors; Simultaneously, imaging element 320 The shooting direction of the camera is always biased to one side of the instrument channel 203, that is, the side where the surgical operation is performed, so as to achieve a better field of view.

Embodiment seven. This embodiment is a variation of the foregoing embodiments. The difference of this embodiment is that the distal end of the transmission member 400 is connected to the lighting element 330, and the lighting element 330 is arranged in the receiving cavity 302, and the lighting element 330 is hinged to the body 310, so that it is suitable for winding in the receiving cavity 302. A second rotating shaft rotates; the setting of the second rotating shaft can refer to the structure of the first rotating shaft. The connection point between the transmission part 400 and the lighting element 330 is away from the second shaft. When the operating part 120 controls the transmission part 400 to move along the length direction of the mirror tube 200 , the distal end of the transmission part 400 drives the lighting element 330 to rotate. That is to say, the imaging element 320 of this embodiment can be fixedly installed, for example, adopting a wide-angle lens, while the illuminating element 330 can be installed rotatably, so that it can illuminate directions that need to be focused on within the shooting range of the imaging element 320 . Specifically, the transmission member 400 is a first cable, and the number of the first cable is one. The lighting element 330 is also connected to the body 310 through an elastic member that is always tensioned, and the operating member pulls the first cable to drive the lighting element 330. The rotation further tensions the elastic member, and when the operating member releases the first cable, the elastic member rotates the lighting element 330 .

Wherein, those skilled in the art can understand that components such as the operating member, the first cable, and the elastic member can be specifically arranged with reference to the foregoing embodiments. Of course, as a variation of this embodiment, both the imaging element 320 and the lighting element 330 can also be set to be rotatable and adjustable, and both can be adjusted independently to obtain a more flexible shooting field of view and lighting effect.

The above are only preferred embodiments of the present application and the applied technical principles, and various obvious changes, readjustments and substitutions can also be made without departing from the concept of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present application. In the case of no conflict, the above embodiments and features in the embodiments can be combined with each other.

Claims (12)

1. An endoscope, characterized in that, comprising: The operating part is equipped with operating parts; a mirror tube, the proximal end of which is connected to the operating part; a head end connected to the distal end of the mirror tube, including a body, an imaging element and an illumination element; a transmission member, the proximal end is connected to the operating member, and the distal end is connected to the imaging element; the transmission member is a first cable; Wherein, the body has an accommodating cavity, and the imaging element is hinged to the body so that it is suitable for rotating around a first rotating shaft in the accommodating cavity; the connecting point of the transmission member and the imaging element is away from When the first rotating shaft and the operating member control the transmission member to move along the length direction of the mirror tube, the distal end of the transmission member drives the imaging element to rotate; the body includes a transparent structure, and the transparent The structure is matched with the imaging element and the lighting element; the number of the first cable is one, and the imaging element is also connected to the body through an elastic member that is always tensioned, and the operating member pulls The first cable drives the imaging element to rotate, and at the same time further tensions the elastic member. When the operating member releases the first cable, the elastic member rotates the imaging element. 2. The endoscope according to claim 1, wherein: The first cable is formed by the wire harness of the imaging element and/or the wire harness of the lighting element. 3. The endoscope according to claim 1, wherein: The elastic member is a coil spring. 4. The endoscope according to claim 1, wherein: The body includes a transparent cover at a distal end of the body. 5. The endoscope according to claim 4, wherein: The transparent cover includes a hemispherical shell structure, and the imaging element is located at least partially inside the hemispherical shell. 6. The endoscope according to any one of claims 1 to 5, wherein The lighting element is fixed to the imaging element. 7. The endoscope according to any one of claims 1 to 5, wherein The mirror tube is a hard tube, and the mirror tube is made by integral injection molding; The mirror tube has a return flow channel; The transmission member penetrates into the accommodating chamber from the return channel, and the transmission member is in a sealed connection with the body; or, the mirror tube also has a passage for the transmission member, and the transmission member passes through the The passing passage of the transmission member is inserted into the accommodating cavity, and the passage of the transmission member is also used for passing the wiring harness of the imaging element and the lighting element. 8. The endoscope according to any one of claims 1 to 5, wherein The mirror tube is a hard tube, and the mirror tube has a return channel and an instrument channel arranged side by side; The head end is connected to the distal end of the return channel; The first rotating shaft is arranged perpendicular to the axis of the mirror tube, and when the imaging element rotates, its shooting direction rotates toward the instrument channel or rotates away from the instrument channel. 9. The endoscope according to any one of claims 1 to 5, wherein The mirror tube is a hard tube, and the mirror tube has a return channel and an instrument channel arranged side by side; The head end is connected to the distal end of the return channel; The first rotation axis and the axis of the mirror tube form an acute angle, so that the shooting direction of the imaging element is always biased towards the instrument channel. 10. The endoscope according to any one of claims 1 to 5, wherein The mirror tube includes a bendable tube, and the bendable tube is arranged at the far end of the mirror tube; The operation part also includes an adjustment handle, the adjustment handle is connected to the head end through a second cable, so as to adjust the bending degree of the bendable pipe by operating the adjustment handle; The rotation direction of the bendable tube and the rotation direction of the imaging element are perpendicular to each other. 11. An endoscope, characterized in that, comprising: The operating part is equipped with operating parts; a mirror tube, the proximal end of which is connected to the operating part; a head end connected to the distal end of the mirror tube, including a body, an imaging element and an illumination element; a transmission part, the proximal end is connected to the operating part, and the distal end is connected to the lighting element; the transmission part is a first cable; Wherein, the body has an accommodating cavity, and the lighting element is hinged to the body so that it is suitable for rotating around a second rotating shaft in the accommodating cavity; The second rotating shaft, when the operating part controls the transmission part to move along the length direction of the mirror tube, the distal end of the transmission part drives the lighting element to rotate; the body includes a transparent structure, and the transparent The structure is matched with the imaging element and the lighting element; The number of the first cable is one, and the lighting element is also connected to the body through an elastic member that is always tensioned. The operating member pulls the first cable to drive the lighting element to rotate, and at the same time The elastic member is further tensed, and when the operating member releases the first cable, the elastic member rotates the lighting element. 12. The endoscope according to claim 11, wherein, The imaging element is rotatably disposed in the accommodating cavity, and the rotation of the illuminating element and the imaging element are independently adjustable.

Images