Liver parenchyma blood flow blocking and lifting device used in hepatic resection

Abstract

The utility model discloses a hepatic parenchyma blood flow blocking and lifting device used in hepatic resection, which comprises a soft ring, one side of the soft ring is fixedly connected with an air bag, the outer side of the air bag is fixedly connected with an outer fixing soft ring, one side of the outer part of the air bag is fixedly connected with a first mounting seat, and the first mounting seat is fixedly connected with a second mounting seat. One side of the first mounting seat is fixedly connected with a second mounting seat, one end of the second mounting seat is fixedly connected with a third mounting seat, and one side of the third mounting seat is fixedly connected with a gas injection lifting belt. The air injection lifting belt comprises a focus, the tightness of the soft ring is adjusted by injecting air into the air bag through a medical injector, partial hepatic blood flow blocking is achieved, a surgical assistant can clamp the traction base of the air injection lifting belt through a common surgical operation instrument, multi-directional lifting traction is conducted on the liver, and the focus can be conveniently exposed.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy. Background Technique

[0002] Peripheral liver cancer refers to malignant tumors located in the upper and lower segments of the left lateral lobe and the right posterior lobe of the liver (segments II, III, VI, and VII of the liver). Surgical operation is the preferred main treatment method. However, due to the rich blood supply of the liver, compared with surgeries on other organs, the control of intraoperative bleeding has always been a difficult problem. The hepatic blood flow occlusion technique is considered the best method for controlling bleeding during hepatectomy. Currently, the hepatic occlusion methods are divided into three categories: inflow hepatic blood occlusion method, total hepatic blood occlusion method, and circumhepatic vascular exclusion with liver hanging maneuver.

[0003] For surgeries for peripheral liver cancer, the currently commonly used vascular occlusion method is the inflow hepatic blood occlusion method, which has the disadvantages of hepatic blood flow occlusion in non-operating areas, aggravating liver injury (ischemia-reperfusion injury) caused by non-surgical factors, intestinal congestion, complex operation, etc. Moreover, the single occlusion time is only 20 minutes, and the next occlusion requires an interval of at least 5 minutes. Especially for patients with liver cirrhosis, even if the liver reserve function is good, the time of liver occlusion should be minimized as much as possible. In view of the current actual clinical problems, there is an urgent need for a surgical device that is safe and effective during surgery, simple to operate, and can occlude hepatic blood vessels for a long time. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy, so as to solve the problems of the commonly used vascular occlusion method, namely the inflow hepatic blood occlusion method, which has the disadvantages of hepatic blood flow occlusion in non-operating areas, aggravating liver injury (ischemia-reperfusion injury) caused by non-surgical factors, intestinal congestion, complex operation, etc. mentioned in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy, comprising a soft ring, one side of the soft ring is fixedly connected with an airbag, the outside of the airbag is fixedly connected with an external fixed soft ring, one side of the outside of the airbag is fixedly connected with a first mounting seat, one side of the first mounting seat is fixedly connected with a second mounting seat, one end of the second mounting seat is fixedly connected with a third mounting seat, one side of the third mounting seat is fixedly connected with an air injection lifting belt, one side of the second mounting seat is fixedly connected with a pressure gauge mounting seat, and the top of the pressure gauge mounting seat is fixedly connected with a pressure gauge.

[0006] Preferably, the bottom of the pressure gauge penetrates through one side inside the second mounting seat and the first mounting seat.

[0007] Preferably, a sealing ring is fixedly connected to the outer side of one end of the first mounting seat.

[0008] Preferably, a threaded rotation groove is provided on one side inside the pressure gauge. A threaded seat is rotatably connected inside the threaded rotation groove. A top cover is fixedly connected to the top of the threaded seat. A fixed seat is fixedly connected to one side of the top cover. A viewing window is fixedly connected to one side of the fixed seat.

[0009] Preferably, a dial is fixedly connected to one side of the top of the pressure gauge.

[0010] Preferably, one end of the gas injection lifting belt is fixedly connected to a tail end.

[0011] Preferably, pulling and limiting seats are symmetrically and fixedly connected to the outer side of one end of the gas injection lifting belt close to the tail end. A pulling seat is fixedly connected to one side of the pulling and limiting seat.

[0012] Preferably, the gas injection lifting belt is arranged in a slightly hollow structure.

[0013] Compared with the prior art, the utility model provides a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy, and has the following beneficial effects:

[0014] 1. By setting a soft ring, the soft ring is used to sleeve the liver segment in the resection area, has sufficient flexibility, elasticity and biocompatibility, can stably sleeve the liver lobe during the operation. The airbag is used to increase the contact area and the compression force, indirectly playing a role in blocking the hepatic parenchymal blood flow and avoiding secondary injury of sharp rupture of the liver. The material of the airbag is the same as that of the soft ring, with a rough surface and a hollow interior. It can generate deformation after inflation or deflation. When expanding, it can increase the contact area with the liver, prevent slipping, and at the same time apply pressure to the liver, indirectly playing a role in compressing and stopping bleeding of the intrahepatic blood vessels. The gas injection lifting belt is used to adjust the pressure of the airbag, and play a role in lifting the liver during the operation to fully expose the lesion and avoid a narrow operation space. It is in a slightly hollow structure, does not have deformability, is connected to the airbag, is convenient for injecting and discharging gas, and has a certain tensile resistance to ensure that it will not break during the pulling process. The tail end includes a pulling loop and an air injection port, which are convenient for injecting gas and grasping and lifting with instruments during the operation. It can block the liver blood flow in the effective area, reduce the risk of intraoperative bleeding. There is no specific requirement for the injection volume of gas. Only by injecting and discharging gas can the blood flow situation of the liver section be observed. There is no requirement for the blocking time, and it has little impact on anesthesia. Compared with the first porta hepatis occlusion, the impact on the normal liver tissue in the non-operative area is zero, and it is convenient to operate. Only three steps of snaring, injecting gas and pulling are required, which is convenient for surgeons in different hospitals to use during the operation. One snaring can achieve successful occlusion, improving the operation efficiency, with strong adaptability, simple design and structure, and the elastic device can adapt to the liver anatomical structures of different patients. The materials are common and the manufacturing cost is low, having good economic benefits and social application value, and being convenient for wide application and development.

[0015] 2. The utility model can be used to display the current air pressure by setting a pressure gauge. Users can adjust the air pressure according to the indication on the pressure gauge to ensure that this device works under appropriate pressure. By setting a pulling seat, the pulling seat is fixed on the outside of the air injection lifting belt, which is convenient for pulling work during use.

[0016] For the parts not involved in this device, they are the same as the prior art or can be implemented by using the prior art. The structure of the utility model is scientific and reasonable, safe and convenient to use, and provides great help to people. Description of the Drawings

[0017] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0018] Figure 1 is an axonometric structural schematic diagram of a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy proposed by the utility model;

[0019] Figure 2 is Figure 1 an enlarged structural schematic diagram of part A of ;

[0020] Figure 3 is Figure 1 an enlarged structural schematic diagram of part B of ;

[0021] Figure 4 is a front view structural schematic diagram of a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy proposed by the utility model;

[0022] Figure 5 is a top view structural schematic diagram of a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy proposed by the utility model;

[0023] Figure 6 is a front view vertical sectional structural schematic diagram of a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy proposed by the utility model;

[0024] Figure 7 is Figure 6 an enlarged structural schematic diagram of part C of ;

[0025] In the figure: soft ring 1, airbag 2, external fixing soft ring 3, first mounting seat 4, sealing ring 5, second mounting seat 6, third mounting seat 7, air injection lifting belt 8, tail end 9, pulling limit seat 10, pulling seat 11, pressure gauge mounting seat 12, pressure gauge 13, threaded rotation groove 14, threaded seat 15, top cover 16, dial 17, fixing seat 18, viewing window 19. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-7 , the present invention provides a technical solution: a device for hepatic parenchymal blood flow occlusion and lifting during hepatectomy, including a soft ring 1. One side of the soft ring 1 is fixedly connected to an airbag 2. The outside of the airbag 2 is fixedly connected to an outer fixing soft ring 3. One side of the outside of the airbag 2 is fixedly connected to a first mounting seat 4. One side of the first mounting seat 4 is fixedly connected to a second mounting seat 6. One end of the second mounting seat 6 is fixedly connected to a third mounting seat 7. One side of the third mounting seat 7 is fixedly connected to an air injection lifting belt 8. One side of the second mounting seat 6 is fixedly connected to a pressure gauge mounting seat 12. The top of the pressure gauge mounting seat 12 is fixedly connected to a pressure gauge 13. The soft ring 1 is used to sleeve the hepatic segment in the resection area, having sufficient flexibility, elasticity and biocompatibility, and can stably sleeve the liver lobe during the operation. The airbag 2 is used to increase the contact area and the compression force, indirectly playing the role of blocking the hepatic parenchymal blood flow and avoiding secondary injury of sharp rupture of the liver. The material of the airbag 2 is the same as that of the soft ring 1, with a rough surface and a hollow interior, and can generate deformation after inflation or deflation. When expanding, it can increase the contact area with the liver, prevent slipping, and at the same time apply pressure to the liver, indirectly playing a role of compressing and stopping bleeding of the intrahepatic blood vessels. The air injection lifting belt 8 is used to adjust the pressure of the airbag 2, and to lift the liver during the operation to fully expose the lesion and avoid a narrow operation space. It has a micro-hollow structure, no deformability, is connected to the airbag, is convenient for injecting and discharging gas, and has a certain anti-tensile force to ensure that it will not break during the pulling process. The tail end includes a pulling ring and an air injection port, which is convenient for injecting gas and grasping and lifting with instruments during the operation. It can block the liver blood flow in the effective area, reduce the risk of intraoperative bleeding. There is no specific requirement for the injection volume. Only by injecting and discharging gas can the blood flow situation of the liver section be observed. There is no requirement for the blocking time, and it has little impact on anesthesia. Compared with the first porta hepatis occlusion, the impact on the normal liver tissue in the non-operative area is zero, and it is convenient for operation. Only three steps of snaring, injecting gas, and pulling are required, which is convenient for surgeons in different hospitals to use during the operation. One snaring can block successfully, improving the operation efficiency, with strong adaptability, simple design and structure, and the elastic device can adapt to the liver anatomical structures of different patients. The materials are common and the manufacturing cost is low, having good economic benefits and social application value, and being convenient for wide application and development.

[0028] In the present invention, preferably, the bottom of the pressure gauge 13 penetrates through one side inside the second mounting seat 6 and the first mounting seat 4.

[0029] In the present utility model, preferably, a sealing ring 5 is fixedly connected to the outer side of one end of the first mounting seat 4.

[0030] In the present utility model, preferably, a threaded rotation groove 14 is provided on one side inside the pressure gauge 13. A threaded seat 15 is rotatably connected inside the threaded rotation groove 14. A top cover 16 is fixedly connected to the top of the threaded seat 15. A fixed seat 18 is fixedly connected to one side of the top cover 16. A viewing window 19 is fixedly connected to one side of the fixed seat 18.

[0031] In the present utility model, preferably, a dial 17 is fixedly connected to one side of the top of the pressure gauge 13, which can be used to display the current air pressure. The user can adjust the air pressure according to the indication on the pressure gauge to ensure that this device works under appropriate pressure.

[0032] In the present utility model, preferably, one end of the air injection lifting belt 8 is fixedly connected to a tail end 9.

[0033] In the present utility model, preferably, pulling limit seats 10 are symmetrically and fixedly connected to the outer side of one end of the air injection lifting belt 8 close to the tail end 9. A pulling seat 11 is fixedly connected to one side of the pulling limit seat 10. By providing the pulling seat 11, the pulling seat 11 is fixed to the outer side of the air injection lifting belt 8, which is convenient for pulling work during use.

[0034] In the present utility model, preferably, the air injection lifting belt 8 is provided with a slightly hollow structure.

[0035] The working principle and usage process of the present utility model: During use, after clearly defining the range and location of the liver lesion during the operation, the left and right half livers are fully dissected. The soft ring 1 is sleeved around the liver segment to be resected, including the lesion. The tightness of the soft ring is adjusted by injecting air into the airbag 2 using a medical syringe to achieve partial hepatic blood flow occlusion. The surgical assistant can use ordinary surgical operating instruments to clamp the pulling seat 11 of the air injection lifting belt 8 to perform multi-directional pulling and traction on the liver, which is convenient for exposing the lesion and facilitating the operation of the surgeon. Together with a medical frame retractor, it is convenient for long-term pulling, eliminating factors such as human fatigue, ensuring the stability and accuracy of the device, and reducing the need for one surgical assistant. After completing the hepatectomy, the airbag 2 is gradually relaxed through the air injection and deflation device, and the air injection lifting belt 8 is released. Observe the bleeding condition of the liver section. If the hemostasis effect of the liver section is not good, immediately lift the air injection lifting belt 8 or inject air again to apply pressure for hemostasis. If there is no bleeding, the soft ring 1 can be removed.

[0036] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hepatic parenchymal blood flow occlusion and lifting device for liver resection, comprising a soft loop (1), characterized in that: One side of the soft loop (1) is fixedly connected with an airbag (2), the outside of the airbag (2) is fixedly connected with an outer fixing soft loop (3), one side of the outside of the airbag (2) is fixedly connected with a first mounting seat (4), one side of the first mounting seat (4) is fixedly connected with a second mounting seat (6), one end of the second mounting seat (6) is fixedly connected with a third mounting seat (7), one side of the third mounting seat (7) is fixedly connected with an air injection lifting belt (8), one side of the second mounting seat (6) is fixedly connected with a pressure gauge mounting seat (12), and the top of the pressure gauge mounting seat (12) is fixedly connected with a pressure gauge (13).

2. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: The bottom of the pressure gauge (13) penetrates through one side inside the second mounting seat (6) and the first mounting seat (4).

3. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the outside of one end of the first mounting seat (4).

4. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: A threaded rotation groove (14) is arranged on one side inside the pressure gauge (13), a threaded seat (15) is rotatably connected inside the threaded rotation groove (14), a top cover (16) is fixedly connected to the top of the threaded seat (15), a fixing seat (18) is fixedly connected to one side of the top cover (16), and a viewing window (19) is fixedly connected to one side of the fixing seat (18).

5. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: A dial (17) is fixedly connected to one side of the top of the pressure gauge (13).

6. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: One end of the air injection lifting belt (8) is fixedly connected with a tail end (9).

7. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 6, characterized in that: Pulling limit seats (10) are symmetrically and fixedly connected to the outside of one end of the air injection lifting belt (8) close to the tail end (9), and a pulling seat (11) is fixedly connected to one side of the pulling limit seat (10).

8. A hepatic parenchymal blood flow occlusion and lifting device for hepatectomy according to claim 1, characterized in that: The air injection lifting belt (8) is arranged in a slightly hollow structure.

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