Porta hepatis blocking belt for laparoscopic liver resection
The hepatic hilum blocking band with a variable-thickness silicone tube and a strong spring buckle allows for easy inflation and deflation, addressing the challenge of tissue damage during conventional band release in laparoscopic liver resection.
Patent Information
- Application Number
- CN202420228051.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-31
AI Technical Summary
Conventional hepatic hilum blocking bands used in laparoscopic liver resection require high contraction forces, leading to difficulty in separation and potential tissue damage during release.
A hepatic hilum blocking band with a silicone tube and a fixing buckle, where the tube's wall thickness varies to allow inflation and deflation, combined with a PVC hose for air injection and a strong spring mechanism in the buckle for secure clamping, facilitates easy blocking and release without tissue damage.
The solution enables convenient blocking and release of the liver portal with reduced risk of tissue damage, utilizing a silicone tube that expands and contracts naturally, and a buckle that securely fixes the tube for inflation and deflation, ensuring easy detachment.
Smart Images
Figure CN222150078U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical instruments, and in particular relates to a hepatic portal blocking band used for laparoscopic liver resection. Background Art
[0002] During laparoscopic hepatectomy, the hilum needs to be blocked. Conventional blocking is done by directly locking the hilum with an elastic band, but it needs to be released after the operation. Since the elastic band needs to provide a higher contraction force for blocking, the blocking band is tightened and half-embedded in the hilum epithelial tissue due to its own elasticity. It is not easy to separate the blocking band when releasing it, which can easily cause tissue damage. Utility Model Content
[0003] The purpose of the utility model is to provide a hepatic hilum blocking band for laparoscopic liver resection in order to solve the above problems.
[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0005] A hepatic hilum blocking band for laparoscopic liver resection comprises a silicone tube having a first end and a second end, both of which are closed; a hose penetrating the first end of the silicone tube and used for inflating the silicone tube is embedded in the silicone tube; a fixing buckle is provided at the second end of the silicone tube, the first end of the silicone tube passes through the fixing buckle to form a P-shaped blocking band, and the fixing buckle is used to compress and release the silicone tube.
[0006] As a further optimization scheme of the present invention, the wall thickness of the silicone tube is minimum when located on the inner side of the P-type blocking band and maximum when located on the outer side of the P-type blocking band, and the wall thickness varies uniformly between the minimum and maximum values, so that the silicone tube can expand toward the inner circle when inflated. This scheme enables the contraction force when blocking the liver portal to be achieved through inflation and compression. The side wall of the silicone tube close to the inner circle is thinner and is easier to expand inward when inflated, so as to achieve the purpose of compression and blocking. The inflation blocking method naturally loses its contraction force after being abandoned, making it convenient to release the blocking band.
[0007] As a further optimization scheme of the utility model, the hose is made of PVC material, and an inflation interface is provided at the end located outside the silicone tube. The inflation interface is used to connect to an external inflation device to inject high-pressure air into the silicone tube. PVC is a material commonly used for medical infusion tubes, which is non-toxic and harmless and has the ability to bend.
[0008] As a further optimization scheme of the utility model, the fixing buckle includes a shell, a sliding block slidably arranged in the shell, a spring for supporting the sliding block, and a button cap for pressing the sliding block, wherein a through hole is opened in the side wall of the shell, and a clamping channel is opened on the side of the sliding block. When the through hole is aligned with the clamping channel, the silicone tube is released, and when it is misaligned, the silicone tube is clamped. The clamping and release of the silicone tube are achieved by setting the fixing buckle. The fixing buckle is commonly found in the elastic adjustment buckle on clothing, but the difference is that the spring in the fixing buckle is a strong spring, so that it has the ability to clamp and fix the silicone tube.
[0009] As a further optimization scheme of the utility model, a first friction pattern is provided on the surface of the through hole, and a second friction pattern is provided on the surface of the clamping channel. The friction pattern is used to increase the clamping force on the silicone tube. In order to further improve the clamping ability of the fixing buckle on the silicone tube, the friction pattern is provided to contact the silicone tube.
[0010] As a further optimization scheme of the utility model, the surfaces of the through hole and the compression channel are provided with arc-shaped grooves along the extension direction of the silicone, and the grooves are used to prevent the hose from being flattened. Since the silicone tube needs to be completely flattened to complete the fixation of the silicone tube, in order to inflate the inside of the silicone tube, a hose with better pressure resistance is provided. In order to enable the hose to maintain good ventilation capacity, a groove is provided to prevent the hose from being flattened.
[0011] As a further optimization solution of the utility model, the outer surfaces of the fixing buckles are provided with rounded chamfers, and the outer surfaces are covered with a silicone outer skin to prevent sharp hard objects from causing organ damage in the abdominal cavity.
[0012] The beneficial effects of the utility model are:
[0013] The utility model realizes the blocking and releasing of the liver portal by inflating and deflating the silicone tube. The blocking is completed after the high-pressure gas is filled, and the blocking is released after the gas is deflated. This method is more convenient for releasing the blockage and has a lower risk of damaging organ tissues. The fixing buckle is used to adjust and fix the length of the silicone tube, and a hose is provided to form an inflation and deflation channel, so that the silicone tube can still be inflated and deflated after being flattened and fixed. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0016] Figure 3 The utility model Figure 1 Center AA view.
[0017] Figure 4 It is a cross-sectional view of a fixing buckle of the utility model.
[0018] In the figure: 1. Silicone tube; 2. Hose; 3. Fixing buckle; 31. Shell; 32. Through hole; 33. First friction pattern; 34. Sliding block; 35. Button cap; 36. Pressing channel; 37. Second friction pattern; 38. Spring; 39. Groove; 4. Silicone outer skin. DETAILED DESCRIPTION
[0019] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.
[0020] Example 1
[0021] like Figure 1-4 As shown, a hepatic hilar blocking band for laparoscopic liver resection includes a silicone tube 1, the silicone tube 1 has a first end and a second end, both of which are closed, a hose 2 penetrating the first end of the silicone tube 1 and used for inflating the silicone tube 1 is embedded in the silicone tube 1, a fixing buckle 3 is provided at the second end of the silicone tube 1, the first end of the silicone tube 1 passes through the fixing buckle 3 to form a P-type blocking band, and the fixing buckle 3 is used to compress and release the silicone tube 1.
[0022] This solution achieves blocking and releasing of the liver portal by inflating and deflating the silicone tube 1. Blocking is completed after filling with high-pressure gas, and the blockage is released after deflating. This method is more convenient for releasing the blockage and has a lower risk of damaging organ tissue. The fixing buckle 3 is used to adjust the length of the silicone tube 1 and fix it. The fixing buckle 3 presses the silicone tube 1 to fix it. In order to prevent the flattened silicone tube 1 from being unable to be inflated, a hose 2 is provided to form a charging and discharging channel.
[0023] The wall thickness of the silicone tube 1 is minimum when located on the inner side of the P-type blocking band and maximum when located on the outer side of the P-type blocking band, and the wall thickness varies evenly between the minimum and maximum values, so that the silicone tube 1 can expand toward the inner circle when inflated. This scheme enables the contraction force when blocking the liver portal to be achieved through inflation and compression. The side wall of the silicone tube close to the inner circle is thinner, and it is easier to expand inward when inflated, so as to achieve the purpose of compression and blocking. The inflation blocking method naturally loses its contraction force after being abandoned, making it convenient to release the blocking band.
[0024] The hose 2 is made of PVC, and an inflation interface is provided at its end outside the silicone tube 1. The inflation interface is used to connect to an external inflation device to inject high-pressure air into the silicone tube 1. PVC is a commonly used material for medical infusion tubes. It is non-toxic and harmless and has the ability to bend with the silicone tube 1.
[0025] The fixing buckle 3 includes a shell 31, a sliding block 34 slidably arranged in the shell 31, a spring 38 for supporting the sliding block 34, and a button cap 35 for pressing the sliding block 34, wherein a through hole 32 is opened on the side wall of the shell 31, and a clamping channel 36 is opened on the side of the sliding block 34. When the through hole 32 is aligned with the clamping channel 36, the silicone tube 1 is released, and when it is misaligned, the silicone tube 1 is clamped. The clamping and releasing of the silicone tube 1 are achieved by setting the fixing buckle 3. The fixing buckle 1 is commonly found in the elastic adjustment buckle on clothing, but the difference is that the spring 38 in the fixing buckle 1 uses a strong spring, so that it has the ability to clamp and fix the silicone tube 1.
[0026] In order to further improve the clamping ability of the fixing buckle on the silicone tube, a first friction pattern 33 is provided on the surface of the through hole 32, and a second friction pattern 37 is provided on the surface of the clamping channel 36. The friction pattern is used to increase the clamping force on the silicone tube 1.
[0027] The surfaces of the through hole 32 and the compression channel 36 are both provided with arc-shaped grooves 39 along the extension direction of the silicone. The grooves 39 are used to prevent the hose 2 from being flattened. Since the silicone tube 1 needs to be completely flattened to complete the fixation of the silicone tube 1, in order to inflate the inside of the silicone tube 1, a hose 2 with better pressure resistance is provided. In order to enable the hose 2 to maintain good ventilation capacity, the grooves 39 are provided to further prevent the hose 2 from being flattened.
[0028] The outer surfaces of the fixing buckles 3 are all provided with rounded chamfers, and the outer surfaces are all covered with a silicone outer skin to prevent sharp hard objects from causing organ damage in the abdominal cavity.
[0029] The specific implementation method is as follows: a silicone tube 1 is used to surround the liver hilum, and the button cap 35 is pressed to misalign the through hole 32 and the compression channel 36 so that the silicone tube 1 can slide in the fixing buckle 3, and the fixing buckle 3 is adjusted to reach a predetermined position, and then the button cap 35 is released to make the fixing buckle 3 compress the silicone tube 1, and air is inflated into the silicone tube 1 through the hose 2. After the silicone tube 1 is inflated and expanded, the blocking task is completed. When the blocking needs to be released, the air is deflated through the hose 2, and the silicone tube 1 becomes loose. The button cap 35 is pressed to release the fixing buckle 3 from fixing the silicone tube 1, and then the silicone tube 1 and the fixing buckle 3 are taken out.
[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A hepatic portal occlusion band for laparoscopic liver resection, comprising a silicone tube (1), characterized in that: The silicone tube (1) has a first end and a second end, both of which are closed. A hose (2) is embedded in the silicone tube (1) and passes through the first end of the silicone tube (1) and is used to inflate the silicone tube (1). A fixing buckle (3) is provided at the second end of the silicone tube (1). The first end of the silicone tube (1) passes through the fixing buckle (3) to form a P-type blocking band. The fixing buckle (3) is used to compress and release the silicone tube (1).
2. The hepatic hilar blocking band for laparoscopic liver resection according to claim 1, characterized in that: The wall thickness of the silicone tube (1) is at a minimum value at the inner side of the P-type blocking band and at a maximum value at the outer side of the P-type blocking band, and the wall thickness varies uniformly between the minimum value and the maximum value, so as to expand the silicone tube (1) toward the inner circle when inflated.
3. The hepatic hilar blocking band for laparoscopic liver resection according to claim 1, characterized in that: The hose (2) is made of PVC material, and an inflation interface is provided at the end thereof located outside the silicone tube (1).
4. The hepatic hilar blocking band for laparoscopic liver resection according to claim 1, characterized in that: The fixing buckle (3) comprises a shell (31), a sliding block (34) slidably arranged in the shell (31), a spring (38) for supporting the sliding block (34), and a button cap (35) for pressing the sliding block (34), wherein a through hole (32) is provided on the side wall of the shell (31), and a clamping channel (36) is provided on the side of the sliding block (34); when the through hole (32) is aligned with the clamping channel (36), the silicone tube (1) is released, and when they are misaligned, the silicone tube (1) is clamped.
5. The hepatic hilar blocking band for laparoscopic liver resection according to claim 4, characterized in that: The surface of the through hole (32) is provided with a first friction pattern (33), and the surface of the pressing channel (36) is provided with a second friction pattern (37), and the friction pattern is used to increase the pressing force on the silicone tube (1).
6. The hepatic hilar blocking band for laparoscopic liver resection according to claim 4, characterized in that: The surfaces of the through hole (32) and the compression channel (36) are both provided with arc-shaped grooves (39) along the extension direction of the silicone rubber, and the grooves (39) are used to prevent the hose (2) from being flattened.
7. The hepatic hilar blocking band for laparoscopic liver resection according to claim 1, characterized in that: The outer surfaces of the fixing buckles (3) are all provided with rounded chamfers, and the outer surfaces are all covered with a silicone outer skin.