Porta hepatis blocking device for laparoscopic liver resection operation

Abstract

The invention relates to the technical field of clinical medical instruments, in particular to a hepatic portal blocking device for laparoscopic liver resection surgery, which comprises a blocking mechanism, the tail of the blocking mechanism is connected with an adjusting control mechanism through a connecting rod piece, and the blocking mechanism comprises a cylindrical sleeve, a clamping assembly, an extrusion piece, a connecting part and an air bag group. The connecting component is arranged at the tail of the cylindrical sleeve, the tail of the connecting component is connected to the connecting rod piece, the air bag set is connected to the head of the connecting component, the clamping assembly is connected to the air bag set and slidably connected to the front end of the inner side of the cylindrical sleeve, and the extrusion piece is arranged at the outer side end of the clamping assembly. The problems that according to a blocking method of an existing blocking device, due to the fact that operation is inconvenient or blocking is not accurate, bleeding control is not ideal, the blocking effect is poor, the risk of operative complications is likely to be increased, the pressure adjusting capacity is not achieved, adjustment cannot be conducted according to the specific conditions of a patient, the proper blocking mode and force cannot be selected, and the blocking effect is poor are solved. And the adaptability is relatively low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clinical medical apparatus and instruments, in particular to a hepatic portal blocking device for laparoscopic hepatectomy. BACKGROUND

[0002] The liver has abundant blood supply, and bleeding is common during hepatectomy. The commonly used hepatic inflow occlusion method for open surgery is Pringle's maneuver, which has certain difficulty in operation under laparoscopy, and needs to occupy a special trocar for operation clamp blocking. The application and development of hepatic inflow occlusion technology under laparoscopy is an important basis for the development of hepatectomy technology, and it is an important prerequisite for large-scale laparoscopic hepatectomy. To some extent, laparoscopic instruments have become a bottleneck for the development of laparoscopic hepatobiliary surgery.

[0003] A hepatic portal blocking device for laparoscopic partial hepatectomy is disclosed in Chinese Patent No. CN218128636U, which is composed of a binding belt, a hard sleeve and a soft sleeve. The binding belt is an elongated hollow circular tube made of silicone rubber, and the tail end is fixedly connected with a butt buckle, which connects the two ends of the binding belt together. The hard sleeve is slidably sleeved on the outside of the binding belt body, and a movable sleeve is formed at the front end of the hard sleeve by the binding belt body. The soft sleeve is slidably sleeved on the outside of the binding belt body and located behind the hard sleeve. A hard plastic elastic tube clamp is sleeved on the outside of the soft sleeve at the rear position, and the elastic tube clamp is fixedly connected with the outside of the soft sleeve tube body. The device extends the operation of hepatic portal blocking and relaxation to the outside of the patient's body, which is simple and convenient to operate, and has lower requirements for the doctor's operation. Only one assistant can operate independently to easily complete the operation, which can greatly shorten the operation time. The device has low consumable cost and is economical and practical.

[0004] The hepatic portal blocking device for laparoscopic hepatectomy such as the above-mentioned has limited operation space in actual use, and its blocking method may cause bleeding control not ideal, poor blocking effect, easy to increase the risk of surgical complications due to inconvenient operation or inaccurate blocking. At the same time, it also does not have pressure regulation ability, cannot be adjusted according to the specific condition of the patient, cannot select the appropriate blocking method and intensity, and further leads to low adaptability. SUMMARY

[0005] The purpose of the present application is to provide a hepatic portal blocking device for laparoscopic hepatectomy, which overcomes the problem of the hepatic portal blocking device for laparoscopic hepatectomy in the prior art that the blocking method may cause bleeding control not ideal, poor blocking effect, easy to increase the risk of surgical complications due to inconvenient operation or inaccurate blocking. At the same time, it also does not have pressure regulation ability, cannot be adjusted according to the specific condition of the patient, cannot select the appropriate blocking method and intensity, and further leads to low adaptability.

[0006] To achieve the above object, the technical scheme adopted by the present application to solve its technical problems is: A hepatic portal blocking device for laparoscopic liver resection surgery is designed, which combines the blocking mechanism and the adjustment control mechanism through integrated design, has simple overall structure, reduces the operation difficulty, adjusts and controls the clamping of the extrusion piece through the adjustment of the adjusting rod and the linkage of the air bag, and adjusts the extrusion of the extrusion air bag through the adjustment of the adjusting rod, so that the blocking force of the extrusion piece is controllable, the damage to the blood vessels is reduced, the blood flow in the blood vessels can be continuously monitored and adjusted, and the safety of the surgery is greatly improved. The specific scheme is as follows: A hepatic portal blocking device for laparoscopic liver resection surgery, comprising: A blocking mechanism for blocking blood vessels during surgery of a patient, the tail of the blocking mechanism being connected with an adjustment control mechanism through a connecting rod; The blocking mechanism includes a connecting component connected at the tail of the connecting rod, and the head of the connecting component is respectively provided with a cylindrical sleeve and an air bag group; A clamping assembly is arranged on the air bag group and slidably connected to the inside of the front end of the cylindrical sleeve, and the outside end of the clamping assembly is provided with an extrusion piece; The tail of the connecting rod is provided with an extrusion air bag, and the extrusion air bag is connected with the extrusion piece.

[0007] Preferably, the connecting rod includes a connecting sleeve and an adjusting rod, the connecting sleeve is sleeved on the adjusting rod, the head of the adjusting rod extends into the cylindrical sleeve and is threadedly connected to the connecting component, and the head of the connecting sleeve is fixedly connected to the connecting component; The adjustment control mechanism is connected to the tail of the adjusting rod, the extrusion air bag is arranged at the tail of the connecting sleeve, and the extrusion air bag cooperates with the adjustment control mechanism.

[0008] Preferably, the adjustment control mechanism includes a movable sleeve, a display and an adjusting handle, the display is arranged on the movable sleeve, and the movable sleeve is sleeved on the tail of the connecting sleeve; The movable sleeve is connected with the adjusting handle, the adjusting handle is connected to the tail of the adjusting rod, the extrusion air bag is located in the movable sleeve, and the extrusion air bag is connected with the display.

[0009] Preferably, the connecting component includes a connecting frame and a connecting part, the connecting frame is installed inside the rear side of the cylindrical sleeve, and the connecting part is fixedly connected to the tail of the connecting frame; The head of the connecting sleeve is connected to the connecting part, and the adjusting rod is threadedly penetrated through the center position of the connecting part.

[0010] Preferably, the air bag group comprises a first air bag and a second air bag arranged in the cylindrical sleeve, the first air bag is connected at the head of the connecting component, the first air bag has a plurality of first springs arranged in an annular array on the end face of the tail of the first air bag, and the first springs are connected at the tail of the cylindrical sleeve. The second air bag is connected at the head of the first air bag, and the tail of the clamping assembly is connected to the second air bag.

[0011] Preferably, the clamping assembly comprises two clamping arms, a second spring and a pull rope, the two clamping arms are slidingly connected to the inside of the cylindrical sleeve, and the second spring is sleeved on the pull rope and connected to the clamping arms at both ends. The pull rope is connected between the two clamping arms, the second spring is sleeved on the pull rope, and the second spring is connected to the clamping arms at both ends.

[0012] Preferably, the inside of the cylindrical sleeve is symmetrically provided with sliding grooves, and the two clamping arms are slidingly connected in the sliding grooves on both sides, respectively. The clamping arms are respectively provided with connecting pins at the tail ends, and the connecting pins are slidingly connected in the guide grooves.

[0013] Preferably, the extrusion member is arranged at the head of the clamping assembly, the extrusion member is an arc-shaped housing structure with an opening facing inwards, the extrusion member is internally provided with a third air bag and a pressure sensor, the third air bag is connected to the extrusion air bag, and the pressure sensor is arranged on the third air bag.

[0014] Preferably, the extrusion air bag is connected with air tubes distributed along the connecting rod, and the air tubes are connected to the third air bag by penetrating the tail of the cylindrical sleeve.

[0015] The beneficial effects of the present application are: The present application can improve the safety and success rate of surgery, the device can accurately and effectively block the hepatic portal blood flow, significantly reduce the risk of bleeding during surgery, thereby improving the safety of surgery, and by reducing bleeding and surgical complexity, it helps to improve the success rate of surgery, and provides better treatment effect for patients.

[0016] The front end of the clamping assembly in the present application can be extended to open an angle, so as to clamp the corresponding blood vessels needed to be blocked, and after clamping, it will retreat to complete the clamping and fixing operation of the blood vessels, which can effectively avoid the manual operation of medical personnel around the blood vessels for fixing, reduce the operation difficulty, and reduce the risk of surgery, greatly improve the safety of surgery.

[0017] The third air bag in the extrusion part can be inflated by the extrusion air bag, the blocking force can be effectively adjusted by injecting gas into the third air bag, and the blocking force is monitored in real time through the pressure sensor, so that the blocking effect and safety can be improved.

[0018] The application can be applied to patients who originally cannot undergo laparoscopic liver resection surgery due to high technical difficulty, thereby expanding the scope of indications for surgery, which helps to provide treatment opportunities for more patients, improve the overall medical level, and precise hepatic portal flow blocking helps to reduce the incidence of postoperative bleeding, infection and other complications, and promote rapid recovery of patients. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 2 It is a front view of a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 3 It is a left view of a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 4 It is Figure 3 a cross-sectional view at A-A; Figure 5 It is Figure 4 a local enlarged view at B; Figure 6 It is Figure 4 a local enlarged view at C; Figure 7 It is an exploded schematic diagram of a connecting rod for a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 8 It is a structural schematic diagram of a blocking mechanism in a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 9 It is a structural schematic diagram of a cylindrical sleeve in a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 10 It is an installation schematic diagram of a clamping assembly in a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 11 It is a structural schematic diagram of a clamping assembly in a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 12 It is a connection relationship diagram of an air bag group and a connecting part in a hepatic portal blocking device for laparoscopic liver resection surgery; Figure 13It is a structure schematic view of the extrusion piece in the hepatic portal blocking device for laparoscopic hepatectomy of the application; Figure 14 It is a schematic view of the extrusion piece in the hepatic portal blocking device for laparoscopic hepatectomy of the application in the expanded state.

[0020] In the figure: 1 - blocking mechanism; 11 - cylindrical sleeve; 111 - sliding groove; 112 - guide sliding groove; 113 - baffle; 12 - extension pipe; 2 - connecting rod piece; 21 - connecting sleeve; 211 - arc-shaped clamping plate; 22 - adjusting rod; 221 - threaded rod; 3 - adjusting control mechanism; 31 - movable sleeve; 32 - display; 33 - adjusting handle; 5 - clamping assembly; 51 - clamping arm; 52 - connecting pin; 53 - second spring; 54 - pull rope; 6 - extrusion piece; 61 - third air bag; 62 - joint; 7 - extrusion air bag; 71 - air pipe; 8 - connecting component; 81 - connecting frame; 82 - connecting part; 83 - first spring; 9 - air bag group; 91 - first air bag; 92 - second air bag. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, further detailed description will be given below in combination with examples and drawings, the schematic implementation and its description of the present application are only used to explain the present application, and not as a limitation to the present application.

[0022] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one ordinarily skilled in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring the present application.

[0023] Throughout this specification, the recitation of "one embodiment", "an embodiment", "one example" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the application. Therefore, the appearance of the phrases "one embodiment", "an embodiment", "one example" or "an example" in various places throughout the specification is not necessarily referring to the same embodiment or example. In addition, specific features, structures, or characteristics can be combined in any suitable sub-combination and / or combination in one or more embodiments or examples. Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In the description of the present application, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0025] As shown in Figures 1-14 The present application provides a hepatic portal blocking device for laparoscopic liver resection surgery, which comprises a blocking mechanism 1 for blocking blood vessels in a patient during surgery, and an adjusting control mechanism 3 connected to the tail of the blocking mechanism 1 through a connecting rod 2. The integrated structure design is more conducive to the use of the device during surgery. The blocking mechanism 1 can effectively block the blood vessels of the patient during surgery to prevent bleeding and affect the safety of the surgery. The blocking mechanism 1 comprises a cylindrical sleeve 11, a clamping assembly 5, a pressing member 6, a connecting component 8 and a balloon group 9. The connecting component 8 is arranged at the tail of the cylindrical sleeve 11, and the tail of the connecting component 8 is connected to the connecting rod 2. The balloon group 9 is connected to the head of the connecting component 8, and the clamping assembly 5 is connected to the balloon group 9. The clamping assembly 5 is slidingly connected to the inner side of the front end of the cylindrical sleeve 11. The clamping assembly 5 can be extended and retracted from the head of the cylindrical sleeve 11 to facilitate the clamping and blocking of the blood vessels. The pressing member 6 is arranged at the outer side of the clamping assembly 5. The pressing member 6 can adjust the force during the clamping and blocking of the blood vessels, effectively block the blood vessels and avoid damage to the blood vessels. The tail of the connecting rod 2 is provided with a pressing balloon 7, which is connected to the pressing member 6. The pressing balloon 7 can control the clamping force of the pressing member 6 to ensure the safety of the surgical process.

[0026] In the above scheme, the connecting rod 2 comprises a connecting sleeve 21 and an adjusting rod 22. The connecting sleeve 21 is sleeved on the adjusting rod 22. The head of the adjusting rod 22 is inserted into the cylindrical sleeve 11 and is threadedly connected to the connecting component 8. The head of the connecting sleeve 21 is fixedly connected to the connecting component 8. The adjusting control mechanism 3 is connected to the tail of the adjusting rod 22. The pressing balloon 7 is arranged at the tail of the connecting sleeve 21 and cooperates with the adjusting control mechanism 3.

[0027] As an optimized technical solution of the present application, the connecting rod 2 adopts a structure design in which the connecting sleeve 21 is sleeved on the outside of the adjusting rod 22. This can ensure that the adjusting rod 22 can rotate and slide in the connecting sleeve 21 during adjustment, and then facilitate the adjustment of the blocking mechanism 1 at the head of the device by the adjusting control mechanism 3 through the adjusting rod 22.

[0028] In the above scheme, the adjusting control mechanism 3 comprises a movable sleeve 31, a display 32 and an adjusting handle 33, the display 32 is arranged on the movable sleeve 31, the movable sleeve 32 is sleeved at the tail of the connecting sleeve 21, the movable sleeve 31 is connected with the adjusting handle 33, the adjusting handle 33 is connected at the tail of the adjusting rod 22, the extrusion air bag 7 is located in the movable sleeve 32 and at the tail of the movable sleeve 32, and the extrusion air bag 7 is connected with the display 32.

[0029] As an optimization technical scheme of the present application, the adjusting handle 33 is connected at the tail of the adjusting rod 22, which can drive the adjusting rod 22 to move back and forth in the connecting sleeve 21 to realize the adjustment of the device, and the movable sleeve 32 is driven to move at the tail of the connecting sleeve 21 during the movement of the adjusting rod 22, so that the extrusion of the extrusion air bag 7 is realized during the forward movement of the movable sleeve 32, to form the adjustment of the clamping force of the extrusion part 6, and the real-time force is displayed on the display 32.

[0030] In the above scheme, the connecting part 8 comprises a connecting frame 81 and a connecting part 82, the connecting frame 81 is installed inside the rear side of the cylindrical sleeve 11, the connecting part 82 is fixedly connected at the tail of the connecting frame 81, the connecting sleeve 21 is connected at the head of the connecting part 82, and the adjusting rod 22 is threaded through the center position of the connecting part 82.

[0031] As an optimization technical scheme of the present application, the connecting part 82 is composed of four arc-shaped plates in a ring array, a clamping groove 821 is formed between adjacent two arc-shaped plates, four arc-shaped clamping plates 211 in a ring array are arranged at the head of the connecting sleeve 21, the arc-shaped clamping plates 211 are clamped into the clamping grooves 821, so that the connecting sleeve 21 is installed on the connecting part 82; and a threaded rod 221 is arranged at the head of the adjusting rod 22, the threaded rod 221 is threadedly connected at the center position of the connecting part 82, and the threaded rod 221 is used for intermittent abutment with the tail of the air bag group 9.

[0032] In the above scheme, the air bag group 9 comprises a first air bag 91 and a second air bag 92 arranged in the cylindrical sleeve 11, the first air bag 91 is connected at the head of the connecting part 8, a plurality of first springs 83 in a ring array are arranged on the end face of the tail of the first air bag 91, the first springs 83 are connected at the tail of the cylindrical sleeve 11, the second air bag 92 is connected at the head of the first air bag 91, and the clamping assembly 5 is connected at the tail of the second air bag 92.

[0033] As an optimization technical scheme of the present application, a baffle 113 is arranged inside the tail of the cylindrical sleeve 11, the first spring 83 is connected between the baffle 113 and the first air bag 91, so as to restore the first air bag 91 after deformation, and the second air bag 92 is connected to the first air bag 91, so as to push the clamping assembly 5 to extend into the cylindrical sleeve 11 after the first air bag 91 is pressed, facilitating clamping of the blood vessel during the operation.

[0034] In the above scheme, the clamping assembly 5 includes the clamping arm 51, the second spring 53 and the pull rope 54, the number of the clamping arm 51 is two, the two clamping arms 51 are slidingly connected to the inside of the cylindrical sleeve 11, the pull rope 54 is connected between the two clamping arms 51, the second spring 53 is sleeved on the pull rope 54, and the two clamping arms 51 are arranged at the two ends of the second spring 53.

[0035] As an optimization technical scheme of the present application, the pull rope 54 is connected to the middle part of the inside of the two clamping arms 51 and is sleeved on the pull rope 54 through the second spring 53, so that an elastic effect is formed between the two clamping arms 51, and the two clamping arms 51 can extend the opening angle when extending out of or retracting into the cylindrical sleeve 11, so as to facilitate the clamping action.

[0036] In the above scheme, the inside of the cylindrical sleeve 11 is symmetrically provided with sliding grooves 111, the two clamping arms 51 are slidingly connected in the two sliding grooves 111 respectively, the two sides of the inner wall of the sliding groove 111 are respectively provided with guide sliding grooves 112, and the tail ends of the clamping arms 51 are respectively provided with connecting pins 52 which are slidingly connected in the guide sliding grooves 112.

[0037] As an optimization technical scheme of the present application, the tail of the clamping arm 51 is slidingly and rotatably connected in the guide sliding groove 112 through the connecting shaft 52, and the clamping arm 51 is slidingly connected in the sliding groove 111, so that the clamping arm 51 can be deflected by the elastic force of the second spring 53 while sliding in the sliding groove 111, and the angle of the clamping arm 51 can be changed during the extension or retraction of the clamping arm 51.

[0038] In the above scheme, the extrusion piece 6 is arranged at the head of the clamping assembly 5, the extrusion piece 6 is an arc-shaped housing structure with an opening facing inwards, the extrusion piece 6 is internally provided with a third air bag 61 and a pressure sensor, the third air bag 61 is connected with the extrusion air bag 7, and the pressure sensor is arranged on the third air bag 61.

[0039] As an optimization technical scheme of the present application, the extrusion member 6 is connected inside the head of the clamping arm 51 through the joint 62, so that a clamping area is formed between the arc-shaped shells of the extrusion member 6, and the third air bag 61 is arranged inside the extrusion member 6, which can change the blocking strength by changing the amount of gas in the third air bag 61 during the blocking of the blood vessel, and has a certain buffering protection effect, which can avoid damage to the blood vessel while ensuring the blocking effect, and a pressure sensor is arranged on the third air bag 61, which can monitor the pressure of the blood vessel in real time through the pressure sensor.

[0040] In the above scheme, the extrusion air bag 7 is connected with the air pipe 71 distributed along the connecting rod member 2, and the air pipe 71 is connected with the third air bag 61 through the tail of the cylindrical sleeve 11.

[0041] As an optimization technical scheme of the present application, an extension pipe 12 is arranged at the tail of the cylindrical sleeve 11, one end of the air pipe 71 is connected to the extrusion air bag 7 along the inside of the connecting sleeve 21, and the other end of the air pipe 71 is connected to the third air bag 61 inside the extrusion member 6 through the extension pipe 12, so as to control the pressure of the third air bag 61 on the blood vessel of the patient and ensure the blocking effect, and the third air bag 61 is made of a material resistant to high temperature and high pressure disinfection to avoid cross infection during use.

[0042] Specific implementation case: When the hepatic portal blocking device for laparoscopic liver resection surgery is used, it can be placed in the laparoscope, and the adjusting handle 33 is twisted forward to drive the adjusting rod 22 to rotate in the connecting sleeve 21, so that the threaded rod 221 at the head of the adjusting rod 22 is moved forward through the threaded connection between the threaded rod 221 at the head of the adjusting rod 22 and the connecting part 82, and then the first air bag 91 is extruded through the head of the threaded rod 221, so that the second air bag 92 pushes the clamping assembly 5 out of the cylindrical sleeve 11, the angle between the two extrusion members 6 at the head of the clamping arm 51 is opened, and the extrusion members 6 can be clamped on both sides of the blood vessel to be blocked, and the blocking and fixing of the blood vessel is completed.

[0043] Then, the adjusting handle 33 is twisted in the reverse direction to drive the adjusting rod 22 to rotate in the connecting sleeve 21 and move backward, so that the threaded rod 221 at the head of the adjusting rod 22 gradually separates from the first air bag 91, and the first air bag 91 gradually returns to the state before extrusion under the action of the first spring 83, and then the clamping arm 51 is retracted into the cylindrical sleeve 11 under the action of the second air bag 92, so that the extrusion members 6 clamp the blood vessel to be blocked.

[0044] And in the process of extrusion piece 6 clamping the blood vessel, in order to ensure the blocking effect of the clamp 6 to the blood vessel, the adjusting handle 33 can be continuously rotated in reverse, so that the front end of the movable sleeve 31 gradually approaches the extrusion air bag 7 and causes extrusion, and then through the air pipe 71, the third air bag 61 in the extrusion piece 6 is inflated and expanded, the clamping force on the blood vessel is increased, and then the blocking effect can be improved under the premise of preventing damage to the blood vessel, and the blocking force is monitored in real time by the pressure sensor arranged in the extrusion piece 6, so as to display the pressure monitored by the pressure sensor on the display 32.

[0045] At the same time, the display 32 designed on the movable sleeve 31 at the tail of the device can display the pressure on the blood vessel wall generated by the pressure, and the duration of the extrusion, and the size of the pressure and the blood flow in the blood vessel can be controlled by controlling the forward and backward movement of the screw. The third air bag 61 is adapted to the arc design of the extrusion piece 6 and the blood vessel wall, which can effectively reduce the physical damage to the blood vessel wall, and the pressure on the blood vessel wall can be observed in real time through the display 32, and the size of the clamping pressure can be adjusted by the adjusting handle 33 using the extrusion air bag 7.

[0046] Finally, for the liver portal block, the single blocking time should be controlled as much as possible. At present, it is generally believed that the safe time limit of Pringle method is 15-20 min, and the opening time is 5 min. If necessary, it is repeated, so as to prevent the single blocking time from being too long. The medical staff can manually adjust the blocking time according to the specific state of the patient during the operation, which has very strong controllability and can greatly reduce the risk of operation.

[0047] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hepatic hilum occlusion device for laparoscopic liver resection surgery, characterized in that, include: The blocking mechanism (1) is used to block the blood vessels of the patient during surgery. The tail of the blocking mechanism (1) is connected to the adjustment and control mechanism (3) via the connecting rod (2). The blocking mechanism (1) includes a connecting component (8), the tail of which is connected to the connecting rod (2), and the head of the connecting component (8) is respectively provided with a cylindrical sleeve (11) and an airbag assembly (9). A clamping assembly (5) is disposed on the airbag assembly (9) and slidably connected to the inner front end of the cylindrical sleeve (11). An extrusion member (6) is disposed on the outer end of the clamping assembly (5). The tail of the connecting rod (2) is provided with a compression airbag (7), which is connected to the compression member (6).

2. The hepatic hilum occlusion device for laparoscopic liver resection surgery according to claim 1, characterized in that: The connecting rod (2) includes a connecting sleeve (21) and an adjusting rod (22). The connecting sleeve (21) is sleeved on the adjusting rod (22). The head of the adjusting rod (22) extends into the cylindrical sleeve (11) and is threaded onto the connecting component (8). The head of the connecting sleeve (21) is fixedly connected to the connecting component (8). The adjustment and control mechanism (3) is connected to the tail of the adjustment rod (22), and the compression airbag (7) is disposed at the tail of the connecting sleeve (21). The compression airbag (7) cooperates with the adjustment and control mechanism (3).

3. The hepatic hilum occlusion device for laparoscopic liver resection surgery according to claim 2, characterized in that: The adjustment control mechanism (3) includes a movable sleeve (31), a display (32) and an adjustment handle (33). The display (32) is mounted on the movable sleeve (31), and the movable sleeve (32) is sleeved on the tail of the connecting sleeve (21). The movable sleeve (31) is connected to the adjusting handle (33), the adjusting handle (33) is connected to the tail of the adjusting rod (22), the compression airbag (7) is located inside the movable sleeve (32), and the compression airbag (7) is connected to the display (32).

4. The hepatic hilum occlusion device for laparoscopic liver resection surgery according to claim 2, characterized in that: The connecting component (8) includes a connecting frame (81) and a connecting part (82). The connecting frame (81) is installed inside the rear side of the cylindrical sleeve (11), and the connecting part (82) is fixedly connected to the tail of the connecting frame (81). The head of the connecting sleeve (21) is connected to the connecting part (82), and the adjusting rod (22) is threaded through the center of the connecting part (82).

5. The hepatic hilum occlusion device for laparoscopic liver resection according to claim 1, characterized in that: The airbag assembly (9) includes a first airbag (91) and a second airbag (92) disposed in the cylindrical sleeve (11). The first airbag (91) is connected to the head of the connecting component (8). A plurality of first springs (83) are arranged in a ring on the tail end face of the first airbag (91). The first springs (83) are connected to the tail of the cylindrical sleeve (11). The second airbag (92) is connected to the head of the first airbag (91), and the tail of the clamping assembly (5) is connected to the second airbag (92).

6. The hepatic hilum occlusion device for laparoscopic liver resection surgery according to claim 5, characterized in that: The clamping assembly (5) includes a clamping arm (51), a second spring (53), and a pull rope (54). The number of clamping arms (51) is two, and the two clamping arms (51) are slidably connected to both sides inside the cylindrical sleeve (11). The pull rope (54) is connected between the clamping arms (51) on both sides, and the second spring (53) is sleeved on the pull rope (54) and the clamping arms (51) at both ends of the second spring (53).

7. The hepatic hilum occlusion device for laparoscopic liver resection according to claim 6, characterized in that: The cylindrical sleeve (11) has symmetrical sliding grooves (111) on its inner side. The two clamping arms (51) are slidably connected in the sliding grooves (111) on both sides. The inner walls of the sliding grooves (111) are respectively provided with guide grooves (112). The clamping arm (51) has connecting pins (52) on both sides of its tail end, and the connecting pins (52) are slidably connected in the guide groove (112).

8. The hepatic hilum occlusion device for laparoscopic liver resection according to claim 1, characterized in that: The extrusion member (6) is disposed at the head of the clamping assembly (5). The extrusion member (6) is an arc-shaped shell structure with an inward opening. A third airbag (61) and a pressure sensor are disposed inside the extrusion member (6). The third airbag (61) is connected to the extrusion airbag (7). The pressure sensor is disposed on the third airbag (61).

9. A hepatic hilum occlusion device for laparoscopic liver resection surgery according to claim 8, characterized in that: The compression airbag (7) is connected to an air tube (71) distributed along the connecting rod (2), and the air tube (71) passes through the tail of the cylindrical sleeve (11) and is connected to the third airbag (61).

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