Porta hepatis blocking device
By designing a portal blocking device including a blocking belt and a fixing mechanism, the problem of easy loosening of the portal blocking belt knot is solved, and the stable fixation and rapid release of the blocking belt is achieved, ensuring the vascular blocking effect during the operation.
Patent Information
- Application Number
- CN202421373265.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The knots in the existing hepatic portal blocking belt are prone to loosening, resulting in unreliable blocking effect and difficult to untie quickly, increasing the difficulty and time of surgery.
A liver door blocking device including a blocking belt and a fixing mechanism is designed. A slot is provided on one side of the blocking belt. The fixing mechanism includes a limiting member, a connecting belt and a limiting clip. It adopts elastic material. Through the cooperation of the limiting member and limiting clip, the stable fixation and rapid release of the blocking belt can be achieved.
The tightness of the blocking band is adjusted, ensuring the continuous effectiveness of vascular blockade and the safety of surgery, reducing operation difficulty and time.
Smart Images
Figure CN223126581U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical auxiliary instruments, and particularly relates to a porta hepatis blocking device. Background Art
[0002] There are many types of porta hepatis blockades clinically, including inflow occlusion of the liver, total hepatic vascular exclusion, and hepatic vein occlusion, etc. In order to reduce bleeding during surgery, a porta hepatis blocking band is often used to tie a knot on the blood vessel to block the blood flow. In order to reduce the damage caused by hepatic ischemia-reperfusion and intestinal congestion, the single occlusion time should be controlled as much as possible. Generally, after blocking for 15 to 20 minutes, it is opened for 5 minutes, and this is repeated if necessary.
[0003] When using a porta hepatis blocking band for occlusion, the knot tied by the porta hepatis blocking band is easy to loosen, making the blocking effect unreliable. If the blocking band is tied too tightly, it is difficult to quickly loosen it when it needs to be untied, increasing the operation difficulty and time.
[0004] Therefore, the utility model provides a porta hepatis blocking device. Content of the Utility Model
[0005] The utility model designs a porta hepatis blocking device to solve the problems existing in the above background art.
[0006] In order to achieve the above technical effects, the utility model is realized through the following technical solutions: a porta hepatis blocking device, including a blocking band and a fixing mechanism.
[0007] Further, a slot is provided on one side of the blocking band; the fixing mechanism includes a limiting member movably connected to the blocking band, a connecting band fixedly connected to the bottom end of the limiting member, and a limiting clip fixedly connected to the other end of the connecting band.
[0008] Further, both the blocking band and the connecting band are made of elastic materials.
[0009] Further, a retaining piece is provided at one end of the blocking band close to the slot, and the retaining piece is made of elastic material.
[0010] Further, the limiting member includes a limiting sleeve slidably sleeved on the blocking band, a pressing member movably connected inside the limiting sleeve and movably sleeved on the blocking band, and an elastic member provided at the inner bottom end of the pressing member and the limiting sleeve.
[0011] Further, the clamping surface of the limiting clip is provided with a flexible anti-slip material.
[0012] The beneficial effects of the utility model are:
[0013] One end of the blocking band in the utility model penetrates through the slot to form a slipknot band. Medical staff can easily adjust the tightness of the blocking band on the blood vessel by pulling both ends of the blocking band according to actual needs, and can quickly release the blocking band to restore normal blood flow. Moreover, the limiting member and the limiting clip are used to prevent the section of the blocking band penetrating through the slot from slipping out, enhancing the stability of the device and the safety of the operation, and helping to ensure the continuous effectiveness of the blood vessel blocking effect during the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the structure after bending of the present utility model;
[0017] Figure 3 is a schematic diagram of the internal structure of the limiting member of the present utility model;
[0018] In the drawings, the list of components represented by each reference numeral is as follows:
[0019] 1. Blocking band; 11. Slot; 12. Flap; 2. Fixing mechanism; 21. Limiting member; 211. Limiting sleeve; 212. Pressing member; 213. Elastic member; 22. Connecting band; 23. Limiting clip; 231. Flexible anti-slip material. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0021] Embodiment 1
[0022] Refer to Figures 1 to 3 As shown, a hepatic hilar blocking device includes a blocking band 1 and a fixing mechanism 2, and is characterized in that: a slot 11 is provided on one side of the blocking band 1; the fixing mechanism 2 includes a limiting member 21 movably connected to the blocking band 1, a connecting band 22 fixedly connected to the bottom end of the limiting member 21, and a limiting clip 23 fixedly connected to the other end of the connecting band 22.
[0023] Both the blocking belt 1 and the connecting belt 22 are made of elastic materials. The blocking belt 1 can be made of latex material with good flexibility and elasticity.
[0024] One end of the blocking belt 1 close to the slot 11 is provided with a baffle 12 to prevent the limiting member 21 from detaching from the blocking belt 1, and the baffle 12 is made of elastic material.
[0025] The limiting member 21 includes a limiting sleeve 211 slidably sleeved on the blocking belt 1, a pressing member 212 movably connected inside the limiting sleeve 211 and movably sleeved on the blocking belt 1, and an elastic member 213 arranged at the inner bottom end of the pressing member 212 and the limiting sleeve 211. The elastic member 213 can adopt an elastic structure such as a spring. Through holes are provided on both the limiting sleeve 211 and the pressing member 212, and the limiting sleeve 211 and the pressing member 212 are sleeved on the blocking belt 1 through the through holes.
[0026] The clamping surface of the limiting clip 23 is provided with a flexible anti-slip material 231 to prevent the limiting clip 23 from slipping on the blocking belt 1. The limiting clip 23 can adopt an elastic clip or a snap clip that matches the size of the blocking belt 1.
[0027] Embodiment 2
[0028] The operating principle of the present utility model:
[0029] When medical staff perform a liver operation on a patient to prevent massive bleeding and perform hepatic portal occlusion, one end of the blocking belt 1 is bypassed around the blood vessel to be blocked, and then that end is inserted and penetrated through the slot 11. Since the blocking belt 1 is made of elastic material, the insertion end of the blocking belt 1 can easily pass through the slot 11, and at this time, the blocking belt 1 bends to form a slipknot belt. Then the medical staff holds both ends of the blocking belt 1 and tightens it to sleeved on the blood vessel to be blocked, and maintains an appropriate tightening degree. Then press the pressing member 212 on the limiting member 21, and the pressing member 212 compresses the elastic member 213 and contracts inside the limiting sleeve 211. As Figure 2 shown, at this time, the through hole of the limiting sleeve 211 and the through hole on the pressing member 212 are aligned, so that the limiting member 21 can be moved to make the limiting member 21 abut against the bent portion of the blocking belt 1, ensuring that the bent section of the blocking belt 1 closely abuts against the side end of the slot 11 to prevent the blocking belt 1 from moving inside the slot 11. Then release the pressing member 212 to make the elastic member 213 of the pressing member 212 rebound. Through the misalignment of the through hole between the limiting sleeve 211 and the through hole of the pressing member 212, the limiting sleeve 211 and the pressing member 212 clamp the blocking belt 1, and the limiting clip 23 is snapped onto the blocking belt 1 at the lower end of the slot 11 to prevent the blocking belt 1 from moving up and down in the slot 11. In this way, the tightening and fixing of the blocking belt 1 on the blood vessel are completed.
[0030] After the operation is completed, the medical staff removes the limit clip 23 on the occlusion band 1, presses the limiting member 21 to move to the side of the occlusion band 1, and pulls out the occlusion band 1 in the slot 11, easily releasing the occlusion of the hepatic portal.
Claims
1. A porta hepatis blocking device, comprising a blocking band (1) and a fixing mechanism (2), characterized in that: One side of the blocking belt (1) is provided with a slot (11); the fixing mechanism (2) includes a limiting member (21) movably connected to the blocking belt (1), a connecting belt (22) fixedly connected to the bottom end of the limiting member (21), and a limiting clip (23) fixedly connected to the other end of the connecting belt (22).
2. The hepatic portal triad occlusion device according to claim 1, wherein Both the blocking belt (1) and the connecting belt (22) are made of elastic materials.
3. The hepatic portal occlusion device according to claim 1, wherein, One end of the blocking belt (1) close to the slot (11) is provided with a baffle (12), and the baffle (12) is made of elastic material.
4. The hepatic portal occlusion device according to claim 1, wherein, The limiting member (21) includes a limiting sleeve (211) slidably sleeved on the blocking belt (1), a pressing member (212) movably connected in the limiting sleeve (211) and movably sleeved on the blocking belt (1), and an elastic member (213) arranged at the inner bottom end of the pressing member (212) and the limiting sleeve (211).
5. The hepatic portal occlusion device according to claim 1, wherein, The clamping surface of the limiting clip (23) is provided with a flexible anti-slip material (231).