Visual medical retractor

Abstract

The invention relates to the technical field of medical instruments, in particular to a visible medical retractor which comprises a disposable and replaceable retractor body used for expanding the surgical field, a monitor used for monitoring the condition in a surgical incision and a quick release assembly used for achieving detachable connection of the retractor body and the monitor. The retractor body comprises a handle part for holding, a hooking part for hooking human tissues at the edge of an operative incision, and a connecting part, and a camera module for shooting conditions in the operative incision is arranged at the head end of the hooking part. The retractor body with the camera module is used in cooperation with a monitor, a series of functions of stretching an incision to expand the operation view and shooting, returning and playing conditions in the incision in real time can be achieved, operation and endoscopic shooting work can be achieved through operation of one doctor, the integration degree is high, extra equipment and personnel investment is reduced, and the operation efficiency is improved. And the equipment cost consumed by an operation can be reduced as much as possible while a relatively high disinfection grade is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a visual medical retractor. Background Art

[0002] When performing surgery on human tissue, the surgical incision is usually pulled open with the help of devices such as expanders or retractors, thereby helping the doctor to obtain a clear field of vision and facilitate the doctor to perform surgical operations on the tissue in the incision. For example, the expander for orthopedic surgery disclosed in a Chinese patent (Announcement No.: CN112932570B) includes two X-shaped hinged rods, the tail ends of the two rods are respectively provided with gripping rings, the front ends of the two rods are respectively provided with expansion plates, and the two expansion plates are both arc-shaped plates. The front ends of the two rods are plate-shaped arcs and the arched parts in the middle are convex, and the outer side walls of the middle of the plate-shaped bodies at the front ends of the two rods are respectively provided with convex columns, and the middle parts of the two expansion plates are respectively provided with through holes. The two expansion plates are respectively sleeved on the convex columns on the corresponding sides through the through holes, and the expansion plates can rotate on the convex columns. The expansion plates are magnetically connected. The expander is connected to the plate-like body at the front end of the rod body, and the expansion of the surgical incision is achieved by outward expansion, and it has a holding function. However, with the improvement of surgical technology, the surgical incision gradually becomes smaller. Continuing to use this type of expander is not only not suitable for expansion of smaller surgical incisions, but also because it occupies the main field of view of the surgical incision, it is not convenient for doctors to perform delicate operations. In minimally invasive surgery, endoscopic equipment is also used, which transmits the operation image in the incision back to the display device through the camera module to facilitate the doctor's operation and to archive the surgical operation process by storing the video. However, the existing endoscopic equipment is generally desktop equipment, and a special operator is required to control the endoscopic equipment during the operation. The operator does not participate in the operation but will affect the doctor's operation, requiring a high degree of cooperation between the doctor and the operator, so there are certain safety hazards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing retractor has a complex structure and a large size, and is no longer suitable for minimally invasive surgery with a small incision. At the same time, it does not have an endoscopic function and can only be equipped with independent endoscopic equipment and separate operators. The personnel and equipment are redundant and require a high degree of cooperation between doctors and operators.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a visual medical retractor, comprising a disposable and replaceable retractor body for expanding the surgical field of view, a monitor for monitoring the situation inside the surgical incision, and a quick-release assembly for realizing detachable connection between the retractor body and the monitor, the retractor body comprising a handle portion for holding, a hook portion for hooking human tissue at the edge of the surgical incision, and a connecting portion, the head end of the hook portion is provided with a camera module for photographing the situation inside the surgical incision, the camera part of the camera module is exposed to the outside from the head end of the hook portion, the tail end of the handle portion is connected to the head end of the hook portion through the connecting portion, the wiring part of the camera module is led out to the outside from the tail end of the handle portion after passing through the interior of the retractor body, and is connected to the connecting part of the monitor through the quick-release assembly.

[0005] When the present invention is working, the retractor body with the camera module is used in conjunction with the monitor, which can realize a series of functions such as pulling the incision to expand the surgical field of view, real-time shooting, feedback and playback of the situation in the incision, etc., so that the doctor can perform the surgery and endoscopic shooting work by one operation, with high integration, reducing the investment in additional equipment and personnel. At the same time, the quick-release assembly can realize the rapid replacement of the disposable retractor body, and with the reusable monitor, it can ensure a high level of disinfection while reducing the equipment cost consumed by the operation as much as possible, and has high economic benefits.

[0006] Preferably, the camera module includes a camera, a signal line and a first connection contact group. The camera is arranged at the head end of the hook part, and the wiring part of the camera is electrically connected to the first connection contact group through the signal line. The quick-release assembly includes a fixed seat and a movable seat that can be detached and matched with each other. The end of the movable seat that matches the fixed seat is provided with a first mounting position for installing the first connection contact group. The first connection contact group is arranged in the first mounting position and is exposed to the outside by an end surface of the movable seat that matches the fixed seat. The fixed seat is installed on the monitor, and the end of the fixed seat that matches the movable seat is provided with a second connection contact group. The wiring part of the monitor is electrically connected to the second connection contact group, and is electrically connected to the first connection contact group through the second connection contact group when the movable seat and the fixed seat match each other.

[0007] When the present invention is working, the retractor body and the monitor are detachably connected through the mutually cooperating fixed seat and movable seat, which is convenient for assembly, can reduce the cost of equipment consumed in surgery, and reduce the patient's medical expenses. At the same time, the data transmission between the camera module and the monitor is realized through the first connection contact group and the second connection contact group, without the need for an additional signal line interface, reducing the assembly steps, and having higher reliability.

[0008] Preferably, the quick-release assembly includes a fixed seat and a movable seat that cooperate with each other and can be detached and removed. The fixed seat is installed on the monitor, and the end of the movable seat that cooperates with the fixed seat is provided with a connecting shaft, and the end of the fixed seat that cooperates with the movable seat is provided with a connecting hole that matches the connecting shaft. The outer surface of the connecting shaft is provided with at least two limiting protrusions of different sizes, and the inner wall surface of the connecting hole is provided with limiting grooves that correspond one to one with the limiting protrusions. The limiting grooves extend along the axial direction of the connecting hole and are arranged in a winding manner around the circumferential direction of the connecting hole.

[0009] Preferably, a clamping block for limiting the corresponding limiting protrusion is provided at the end of the limiting groove, and the clamping block abuts against the limiting protrusion when the fixed seat and the movable seat are matched to limit the rotation of the movable seat.

[0010] Preferably, an elastic portion is further provided at the end of the limiting groove, and the clamping block is connected to the movable seat via the elastic portion. The clamping block abuts against the limiting protrusion when the limiting protrusion moves in or out of the end of the limiting groove, and is displaced under the drive of the limiting protrusion to make space for the limiting protrusion to pass through. When the limiting protrusion moves to the end of the limiting groove, the clamping block abuts against the limiting protrusion to limit the rotation of the movable seat.

[0011] Preferably, the other end of the movable seat is provided with a wiring portion for fixing the corresponding cable, and a space is provided inside the wiring portion for limiting the installation of the corresponding cable. The wiring portion is perpendicular to the length direction of the movable seat, and an end face of the wiring portion close to the movable seat is set as an arc surface.

[0012] Preferably, a smoke duct is provided inside the hook portion for exhausting smoke, the inlet of the smoke duct is exposed to the outside from the head end of the hook portion to allow smoke in the surgical incision to enter, and the outlet of the smoke duct is exposed to the outside from the tail end of the hook portion and is connected to the corresponding smoke exhaust equipment to exhaust the smoke.

[0013] Preferably, the head end of the hook portion is further provided with a lighting module, and the lighting portion of the lighting module is exposed to the outside from the head end of the hook portion to provide lighting for the surgical incision.

[0014] Preferably, a bending portion is provided at the head end of the hook portion, and the bending portion is bent along the length direction of the hook portion toward the handle portion. The bending portion is made of a transparent light-guiding material, and the outer surface of the bending portion is provided with a scattering portion for evenly scattering light.

[0015] Preferably, a flue for exhausting smoke is further provided inside the hook portion, and the entrance of the flue is exposed to the outside from the head end of the hook portion to allow smoke in the surgical incision to enter, the lighting part of the lighting module and the camera part of the camera module are symmetrically arranged on both sides of the entrance of the flue, and the heat dissipation part of the lighting module is arranged inside the flue.

[0016] The beneficial technical effects of the present invention include:

[0017] 1. The present invention uses a retractor body with a camera module in conjunction with a monitor, which can realize a series of functions such as pulling the incision to expand the surgical field of view, real-time shooting, feedback and playback of the situation inside the incision, so that the doctor can perform surgery and endoscopic shooting by one person. It has high integration and reduces the investment in additional equipment and personnel. At the same time, the quick-release assembly can realize the rapid replacement of the disposable retractor body. In combination with a reusable monitor, it can ensure a high level of disinfection while reducing the equipment cost consumed in the operation as much as possible, and has high economic benefits.

[0018] 2. The present invention realizes the detachable connection between the retractor body and the monitor through the mutually cooperating fixed seat and movable seat, which is convenient for assembly, can reduce the cost of equipment consumed in surgery, and reduce the patient's medical expenses. At the same time, the data transmission between the camera module and the monitor is realized through the first connection contact group and the second connection contact group, without the need for an additional signal line interface, reducing the assembly steps and having higher reliability.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a visual medical retractor;

[0022] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0024] Figure 4 It is a schematic diagram of the structure of some parts of a visual medical retractor. DETAILED DESCRIPTION

[0025] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0026] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0027] Example 1:

[0028] See also Figure 1 This embodiment discloses a visual medical retractor, including a disposable and replaceable retractor body 1 for expanding the surgical field of view, a monitor 2 for monitoring the situation inside the surgical incision, and a quick-release assembly 3 for achieving a detachable connection between the retractor body 1 and the monitor 2, which is described in detail below with reference to the accompanying drawings.

[0029] See also Figures 1 to 4 In this embodiment, the retractor body 1 includes a handle portion 11 for holding, a hook portion 12 for hooking human tissue at the edge of the surgical incision, and a connecting portion 13. The head end of the hook portion 12 is provided with a camera module for photographing the situation inside the surgical incision. The camera part of the camera module is exposed to the outside from the head end of the hook portion 12, and the tail end of the handle portion 11 is connected to the head end of the hook portion 12 through the connecting portion 13. The wiring part of the camera module is led out to the outside from the tail end of the handle portion 11 after passing through the interior of the retractor body 1, and is connected to the connecting part of the monitor 2 through the quick-release component 3.

[0030] When this embodiment is working, the retractor body 1 with the camera module is used in conjunction with the monitor 2, which can realize a series of functions such as pulling the incision to expand the surgical field of view, real-time shooting, feedback and playback of the situation in the incision, etc., so that the doctor can perform the surgery and endoscopic shooting work alone, with high integration, reducing the investment in additional equipment and personnel. At the same time, the quick-release component 3 can realize the rapid replacement of the disposable retractor body 1, and with the reusable monitor 2, it can ensure a high level of disinfection while reducing the equipment cost consumed in the operation as much as possible, and has high economic benefits.

[0031] Preferably, the camera module includes a camera 121, a signal line and a first connection contact group 122. The camera 121 is arranged at the head end of the hook portion 12. The wiring part of the camera 121 is electrically connected to the first connection contact group 122 through the signal line. The quick-release component 3 includes a fixed seat 31 and a movable seat 32 that cooperate with each other and can be detached. The end of the movable seat 32 that cooperates with the fixed seat 31 is provided with a first mounting position for installing the first connection contact group 122. The first connection contact group 122 is arranged in the first mounting position and is exposed to the outside by an end surface of the movable seat 32 that cooperates with the fixed seat 31. The fixed seat 31 is installed on the monitor 2. The end of the fixed seat 31 that cooperates with the movable seat 32 is provided with a second connection contact group 312. The wiring part of the monitor 2 is electrically connected to the second connection contact group 312, and is electrically connected to the first connection contact group 122 through the second connection contact group 312 when the movable seat 32 and the fixed seat 31 cooperate with each other.

[0032] When this embodiment is working, the retractor body 1 and the monitor 2 are detachably connected through the mutually cooperating fixed seat 31 and movable seat 32, which facilitates assembly, reduces the cost of equipment consumed in surgery, and reduces the patient's medical expenses. At the same time, data transmission between the camera module and the monitor 2 is realized through the first connection contact group 122 and the second connection contact group 312, without the need for an additional signal line interface, reducing the assembly steps and having higher reliability.

[0033] As a further improvement of this embodiment, the quick-release assembly 3 includes a fixed seat 31 and a movable seat 32 that cooperate with each other and can be detached and separated. The fixed seat 31 is installed on the monitor 2, and the end of the movable seat 32 that cooperates with the fixed seat 31 is provided with a connecting shaft 321, and the end of the fixed seat 31 that cooperates with the movable seat 32 is provided with a connecting hole 311 that matches the connecting shaft 321. The outer surface of the connecting shaft 321 is provided with at least two limiting protrusions 3211 of different sizes, which can realize the anti-fool function and avoid the situation where the first connecting contact group 122 cannot be correctly aligned with the second connecting contact group 312. A limiting groove 3111 corresponding to the limiting protrusion 3211 is provided on the inner wall surface of the connecting hole 311. The limiting groove 3111 extends along the axial direction of the connecting hole 311 and is arranged in a winding manner around the circumferential direction of the connecting hole 311.

[0034] Preferably, a blocking block 3112 is provided at the end of the limiting groove 3111 for limiting the corresponding limiting protrusion 3211. The blocking block 3112 abuts against the limiting protrusion 3211 when the fixed seat 31 and the movable seat 32 cooperate to limit the rotation of the movable seat 32. In specific implementation, an elastic portion 3113 is also provided at the end of the limiting groove 3111. The blocking block 3112 is connected to the movable seat 32 through the elastic portion 3113. The blocking block 3112 abuts against the limiting protrusion 3211 when the limiting protrusion 3211 moves in or out of the end of the limiting groove 3111, and is displaced under the drive of the limiting protrusion 3211 to make room for the limiting protrusion 3211 to pass through. The blocking block 3112 abuts against the limiting protrusion 3211 when the limiting protrusion 3211 moves to the end of the limiting groove 3111 to limit the rotation of the movable seat 32.

[0035] When working, the connecting shaft 321 is inserted into the connecting hole 311. At this time, the limiting protrusions 3211 are respectively inserted into the corresponding limiting grooves 3111, and then the connecting shaft 321 is continued to be inserted and rotated under the drive of the limiting groove 3111 until the limiting protrusion 3211 abuts against the blocking block 3112. Then, the connecting shaft 321 is rotated to drive the blocking block 3112 to move by the limiting protrusion 3211 until the limiting protrusion 3211 moves into the end of the limiting groove 3111. The blocking block 3112 is reset under the drive of the elastic portion 3113 and keeps abutting against the limiting protrusion 3211, completing the mutual cooperation between the fixed seat 31 and the movable seat 32. At this time, the first connection contact group 122 and the second connection contact group 312 cooperate with each other to complete the photography. As for the electrical connection between the imaging module and the monitor 2, when the retractor body 1 needs to be replaced, it is only necessary to rotate the connecting shaft 321 in the opposite direction, and drive the block 3112 to move through the limiting protrusion 3211 until the limiting protrusion 3211 moves out of the end of the limiting groove 3111. The block 3112 releases the limit on the limiting protrusion 3211, and then the connecting shaft 321 is rotated to realize the separation of the movable seat 32 and the fixed seat 31. No additional installation steps and installation tools are required, and the operation is convenient and quick. Of course, any other suitable connection method can also be used to realize the detachable connection between the movable seat 32 and the fixed seat 31. For example, the detachable connection between the fixed seat 31 and the movable seat 32 can also be realized by connecting the block 3112 and the connecting groove.

[0036] In a specific implementation, the other end of the movable seat 32 is provided with a wiring portion 322 for fixing the corresponding cable. The interior of the wiring portion 322 is provided with a space for limiting the installation of the corresponding cable. The wiring portion 322 is perpendicular to the length direction of the movable seat 32. The end face of the wiring portion 322 close to the movable seat 32 is set as an arc surface. When working, the signal line is turned into the wiring portion 322, which can achieve a reinforced connection of the signal line and avoid the separation of the wiring parts due to pulling the signal line, thereby improving the stability of the visual medical retractor. At the same time, the arc surface fits the human hand, providing it with an additional force support position, which can reduce the hand pressure of the doctor when using it, thereby improving the doctor's experience.

[0037] Example 2:

[0038] See also Figure 1 This embodiment provides a visual medical retractor. The similarities with other embodiments will not be repeated here, and the differences will be described in detail below.

[0039] See also Figures 1 to 4 In order to be suitable for various surgeries such as laser surgery that generate smoke and dust in the incision, in this embodiment, a smoke duct 123 is further provided inside the hook portion 12 for exhausting smoke. The inlet of the smoke duct 123 is exposed to the outside from the head end of the hook portion 12 to allow the smoke in the surgical incision to enter, and the outlet of the smoke duct 123 is exposed to the outside from the tail end of the hook portion 12 and is connected to the corresponding smoke exhaust equipment to exhaust the smoke, so that the smoke can be discharged in time to prevent the smoke from contaminating the human tissue in the incision.

[0040] Preferably, in order to avoid insufficient lighting of the surgical field due to a small incision, a lighting module 124 is further provided at the head end of the hook portion 12. The lighting portion of the lighting module 124 is exposed to the outside from the head end of the hook portion 12 to provide lighting for the surgical incision. In specific implementation, a bending portion 125 is provided at the head end of the hook portion 12. The bending portion 125 is bent along the length direction of the hook portion 12 toward the direction close to the handle portion 11, which can further improve the stability of the hook and avoid unhooking. The bending portion 125 is configured to be made of a transparent light-guiding material. The outer surface of the bending portion 125 is provided with a scattering portion for uniformly scattering light, which can evenly scatter the light emitted by the lighting module 124 inside the incision, thereby avoiding local overbrightness and overdarkness.

[0041] Preferably, in order to prevent the lighting module 124 with high power consumption from heating up and burning human tissue, a corresponding heat dissipation channel is provided inside the hook portion 12. In this embodiment, the flue 123 can be used directly for heat dissipation, and the heat dissipation part of the lighting module 124 is arranged inside the flue 123. The working heat of the lighting module 124 is dissipated through the circulation of gas. Preferably, the lighting part of the lighting module 124 and the camera part of the camera module are symmetrically arranged on both sides of the entrance of the flue 123, which can balance the amount of light entering the camera module to avoid the influence of excessive light on shooting, and can reduce the thickness of the hook portion 12, making it more suitable for surgery with smaller incisions.

[0042] The beneficial technical effects of this embodiment include: the present invention uses a retractor body with a camera module in conjunction with a monitor, which can realize a series of functions such as pulling the incision to expand the surgical field of view, real-time shooting, feedback and playback of the situation inside the incision, so that the doctor can perform surgery and endoscopic shooting work alone, with high integration, reducing the investment in additional equipment and personnel. At the same time, the quick-release assembly can realize the rapid replacement of the disposable retractor body, and in conjunction with a reusable monitor, it can ensure a high level of disinfection while reducing the equipment cost consumed in the operation as much as possible, and has high economic benefits.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. Visual medical retractor, characterized by: The invention comprises a disposable and replaceable retractor body (1) for expanding the surgical field of view, a monitor (2) for monitoring the situation in the surgical incision, and a quick-release assembly (3) for realizing a detachable connection between the retractor body (1) and the monitor (2), wherein the retractor body (1) comprises a handle portion (11) for holding, a hook portion (12) for hooking human tissue at the edge of the surgical incision, and a connecting portion (13), the head end of the hook portion (12) is provided with a camera module for photographing the situation in the surgical incision, the camera portion of the camera module is exposed to the outside from the head end of the hook portion (12), the tail end of the handle portion (11) is connected to the head end of the hook portion (12) through the connecting portion (13), the wiring portion of the camera module is led out to the outside from the tail end of the handle portion (11) after passing through the interior of the retractor body (1), and is connected to the connecting portion of the monitor (2) through the quick-release assembly (3).

2. The visual medical retractor according to claim 1, characterized in that: The camera module comprises a camera (121), a signal line and a first connection contact group (122), wherein the camera (121) is arranged at the head end of the hook portion (12), and the connection portion of the camera (121) is electrically connected to the first connection contact group (122) via the signal line. The quick-release assembly (3) comprises a fixed seat (31) and a movable seat (32) that cooperate with each other and can be detached and separated. The movable seat (32) is provided with a first installation position for installing the first connection contact group (122) at one end that cooperates with the fixed seat (31), and the first connection contact The group (122) is arranged in the first installation position and is exposed to the outside by an end surface of the movable seat (32) and the fixed seat (31) that cooperate with each other. The fixed seat (31) is installed on the monitor (2). The end of the fixed seat (31) and the movable seat (32) that cooperate with each other is provided with a second connection contact group (312). The wiring part of the monitor (2) is electrically connected to the second connection contact group (312), and is electrically connected to the first connection contact group (122) through the second connection contact group (312) when the movable seat (32) and the fixed seat (31) cooperate with each other.

3. The visual medical retractor according to claim 1, characterized in that: The quick-release assembly (3) comprises a fixed seat (31) and a movable seat (32) that cooperate with each other and can be detached and separated. The fixed seat (31) is installed on the monitor (2). One end of the movable seat (32) that cooperates with the fixed seat (31) is provided with a connecting shaft (321). One end of the fixed seat (31) that cooperates with the movable seat (32) is provided with a connecting hole (311) that matches the connecting shaft (321). The outer surface of the connecting shaft (321) is provided with at least two limiting protrusions (3211) of different sizes. The inner wall surface of the connecting hole (311) is provided with a limiting groove (3111) that corresponds to the limiting protrusion (3211) one by one. The limiting groove (3111) extends along the axial direction of the connecting hole (311) and is arranged in a winding direction around the circumferential direction of the connecting hole (311).

4. The visual medical retractor according to claim 3, characterized in that: A clamping block (3112) for limiting the corresponding limiting protrusion (3211) is provided at the end of the limiting groove (3111). When the fixed seat (31) and the movable seat (32) are matched, the clamping block (3112) abuts against the limiting protrusion (3211) to limit the rotation of the movable seat (32).

5. The visual medical retractor according to claim 4, characterized in that: An elastic portion (3113) is further provided at the end of the limiting groove (3111), and the clamping block (3112) is connected to the movable seat (32) via the elastic portion (3113). When the limiting protrusion (3211) moves into or out of the end of the limiting groove (3111), the clamping block (3112) abuts against the limiting protrusion (3211), and is displaced under the drive of the limiting protrusion (3211) to make room for the limiting protrusion (3211) to pass through. When the limiting protrusion (3211) moves to the end of the limiting groove (3111), the clamping block (3112) abuts against the limiting protrusion (3211) to limit the rotation of the movable seat (32).

6. The visual medical retractor according to claim 1, characterized in that: The other end of the movable seat (32) is provided with a wiring portion (322) for fixing the corresponding cable, and a space for limiting the insertion of the corresponding cable is provided inside the wiring portion (322). The wiring portion (322) is perpendicular to the length direction of the movable seat (32), and an end surface of the wiring portion (322) close to the movable seat (32) is set as an arc surface.

7. The visual medical retractor according to claim 1, characterized in that: The hook portion (12) is further provided with a smoke duct (123) for exhausting smoke. The inlet of the smoke duct (123) is exposed to the outside from the head end of the hook portion (12) to allow smoke in the surgical incision to enter. The outlet of the smoke duct (123) is exposed to the outside from the tail end of the hook portion (12) and is connected to a corresponding smoke exhaust device to exhaust smoke.

8. The visual medical retractor according to claim 1, characterized in that: The head end of the hook portion (12) is further provided with a lighting module (124), and the lighting portion of the lighting module (124) is exposed to the outside from the head end of the hook portion (12) to provide lighting for the surgical incision.

9. The visual medical retractor according to claim 8, characterized in that: A bending portion (125) is provided at the head end of the hook portion (12), and the bending portion (125) is bent along the length direction of the hook portion (12) in a direction close to the handle portion (11). The bending portion (125) is configured to be made of a transparent light-guiding material, and a scattering portion for uniformly scattering light is provided on the outer surface of the bending portion (125).

10. The visual medical retractor according to claim 8, characterized in that: A flue (123) for exhausting smoke is further provided inside the hook portion (12), and an entrance of the flue (123) is exposed to the outside from the head end of the hook portion (12) to allow smoke in the surgical incision to enter. The lighting portion of the lighting module (124) and the camera portion of the camera module are symmetrically arranged on both sides of the entrance of the flue (123), and the heat dissipation portion of the lighting module (124) is arranged inside the flue (123).

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