Porta hepatis blood vessel blocker
By designing a hilar vascular blocker with adjustable notch and positioning, the difficulty and safety of existing hilar hilar vascular blockers are solved during the release of the existing hilar hilar vascular blockers, and a simpler and safer hilar vascular blockade and Uninstall the operation.
Patent Information
- Application Number
- CN202322778845.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing hepatic portal blockers are difficult to remove and are prone to damage the patient's tissue, and the material is too hard or too loose, resulting in unsatisfactory results.
A hepatic duct vascular blocker is designed, including a rope body and a hollow blocking body. The blocking body is provided with a first notch and a second notch, and a positioning member is provided on the rope body through these notches and positioning. The parts are fast fixed and uninstalled. The rope is made of medical silicone and the outer surface of the blocker body is equipped with anti-slip marks.
It achieves simpler use and better fixation effects, reduces the risk of intraoperative bleeding, improves the convenience and safety of operation, and is suitable for blood vessels of different specifications, with low cost and safety.
Smart Images
Figure CN222237744U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a hepatic portal blood vessel blocker. Background Art
[0002] There are many types of portal blockade in clinical practice, including hepatic blood flow blockade, whole liver blood flow blockade, and hepatic vein blockade. Portal blockade is mainly used in liver surgery, especially liver surgery where surgical resection is very difficult and intraoperative bleeding is large. Portal blockade allows for a clearer observation of the intrahepatic anatomical structure, which is beneficial for handling intrahepatic bile ducts and blood vessels. It can not only speed up the surgical operation, but also minimize the risks and bleeding during the operation, and reduce the incidence of postoperative bile leakage and liver failure.
[0003] At present, it is difficult to remove the portal hypertension blocking band, and it is easy to damage the patient's body tissues when removing the portal hypertension blocking band. There are also problems such as the material is too hard, the binding effect is too tight or too loose, and the effect of portal hypertension blocking surgery is not ideal.
[0004] In the prior art, a Chinese utility model patent document with publication number CN216439260U and authorization announcement date of May 6, 2022 is proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a portal vein blocking band, comprising a blocking band body and a positioning locking device, the blocking band body comprising a restraining segment and a positioning segment, the locking device is fixed to one section of the restraining segment, the positioning segment is connected to the other end of the restraining segment and passes through the locking device to be locked to form a ring structure, the positioning segment is locked in different positions by the locking device to determine the size of the enclosed space of the ring structure, and the restraining segment is an elastic band.
[0005] The above technical solution may have the following problems during actual use: the locking device is a one-way locking ratchet structure, the positioning section is a one-way sliding rack structure, and the matching relationship between the positioning locking device and the blocking belt body is complicated. Summary of the invention
[0006] In order to solve the above technical problems, the utility model proposes a hepatic portal blood vessel blocker, which has a simpler structure and is more convenient to use.
[0007] The utility model is realized by adopting the following technical solutions:
[0008] A hilar vascular blocker comprises a rope body and a hollow blocker body; the blocker body is provided with a first notch and a second notch, and the first notch and the second notch are symmetrically arranged along the central axis of the blocker body; the rope body is provided with a plurality of spaced positioning members for matching the first notch and the second notch; one end of the rope body is used to be clamped at the first notch through one of the positioning members, and the other end is used to pass through the first notch and the blocker body in sequence, bypass the blood vessel, and then pass through the blocker body and the second notch in sequence, and finally be clamped at the second notch through another positioning member.
[0009] Along the direction from the edge to the center of the blocker body, the widths of the first notch and the second notch decrease in sequence.
[0010] The minimum width of the first notch and the second notch matches the diameter of the cable body.
[0011] Along the direction from the edge to the center of the blocker body, the widths of the first notch and the second notch are 5 mm, 4 mm, 3 mm and 2 mm respectively.
[0012] The distance between two adjacent positioning pieces is 1 mm.
[0013] The positioning piece is a knot.
[0014] The rope body is made of medical silica gel.
[0015] The outer surface of the blocker body is provided with anti-slip grooves.
[0016] The blocker body is cylindrical.
[0017] The length of the blocker body is 4 cm and the diameter is 1 cm.
[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0019] 1. In the utility model, the rope body and the blocker body are split structures, which are easy to replace and can be recycled. At the same time, different positioning pieces can be selected according to different specifications of blood vessels, and the blood vessel can be blocked by respectively clamping them in the corresponding first notch and second notch. The structure is simple and easy to use.
[0020] 2. The widths of the first notch and the second notch are successively reduced, which is convenient for rapid positioning, so that the rope can quickly pass through the first notch and the second notch, and finally be stuck at the end of the notch through the positioning piece.
[0021] 3. The minimum width of the first notch and the second notch matches the diameter of the rope body, so that the fixing effect between the rope body and the blocker body is better.
[0022] 4. The positioning member is a knot, which is simple in cost and preparation.
[0023] 5. The rope body is made of medical silicone, which is safer to use.
[0024] 6. The outer surface of the blocker body is provided with anti-slip grooves, which can play a good anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementations, wherein:
[0026] Figure 1 It is a side structural schematic diagram of the utility model;
[0027] Figure 2 Another side structural schematic diagram of the utility model;
[0028] Figure 3 This is a side structural diagram of a blocker body in the utility model;
[0029] Figure 4 This is another side structural diagram of the blocker body in the utility model;
[0030] Markings in the figure:
[0031] 1. Rope body, 2. Blocker body, 3. First notch, 4. Second notch, 5. Rope knot, 6. Blood vessel. DETAILED DESCRIPTION
[0032] Example 1
[0033] As a basic implementation mode of the utility model, the utility model includes a hepatic hilar vascular blocker, including a rope body 1 and a hollow blocker body 2. This embodiment does not limit the structure of the blocker body 2, as long as the blocker body 2 is provided with a first notch 3 and a second notch 4, and the first notch 3 and the second notch 4 are symmetrically arranged along the central axis of the blocker body 2. The rope body 1 is provided with a plurality of spaced positioning members for matching the first notch 3 and the second notch 4. This embodiment does not limit the specific structure of the positioning member, as long as the diameter of the positioning member can be greater than the minimum width of the first notch 3 and the second notch 4, so that the positioning member can be stuck at the first notch 3 and the second notch 4.
[0034] When it is necessary to block the blood vessel 6, one end of the rope body 1 is clamped at the first notch 3 through one of the positioning pieces, and the other end is used to pass through the first notch 3 and the blocker body 2 in sequence, bypass the blood vessel 6, and then pass through the blocker body 2 and the second notch 4 in sequence, and finally be clamped at the second notch 4 through another positioning piece.
[0035] Example 2
[0036] As a preferred embodiment of the utility model, the utility model includes a hepatic hilar vascular blocker, including a rope body 1 and a hollow blocker body 2. The blocker body 2 can be in a cubic shape, and one end of the blocker body 2 is further provided with a first notch 3 and a second notch 4, and the first notch 3 and the second notch 4 are symmetrically arranged along the central axis of the blocker body 2. The first notch 3 and the second notch 4 can be in the shape of strips of equal width.
[0037] The rope body 1 is provided with a plurality of positioning members, which can be circular rings sleeved on the rope body 1, and the diameter of the circular rings is smaller than the inner diameter of the blocker body 2 and larger than the widths of the first notch 3 and the second notch 4. The rope body 1 has a diameter smaller than the widths of the first notch 3 and the second notch 4.
[0038] One end of the rope body 1 is clamped at the first notch 3 through one of the positioning pieces, and the other end is used to pass through the first notch 3 and the blocker body 2 in sequence, bypass the blood vessel 6, and then pass through the blocker body 2 and the second notch 4 in sequence, and finally be clamped at the second notch 4 through another positioning piece.
[0039] Example 3
[0040] As another preferred embodiment of the utility model, the utility model includes a hepatic hilar vascular blocker, including a rope body 1 and a hollow blocker body 2. The blocker body 2 is cylindrical, and one end of the blocker body 2 is provided with a first notch 3 and a second notch 4, and the first notch 3 and the second notch 4 are symmetrically arranged along the central axis of the blocker body 2. More specifically, along the edge to the center direction of the blocker body 2, the widths of the first notch 3 and the second notch 4 gradually decrease. When viewed from the side, the first notch 3 and the second notch 4 can be triangular or trapezoidal.
[0041] The rope body 1 is provided with a plurality of spaced positioning members for matching the first notch 3 and the second notch 4, and the positioning members may be knots 5 formed after the rope body 1 is knotted. One end of the rope body 1 is clamped at the first notch 3 through one of the knots 5, and the other end is used to pass through the first notch 3 and the blocker body 2 in sequence, bypass the blood vessel 6, and then pass through the blocker body 2 and the second notch 4 in sequence, and finally be clamped at the second notch 4 through another knot 5.
[0042] Example 4
[0043] As the best embodiment of the present utility model, refer to the attached specification Figure 1 And the instruction manual Figure 2The utility model includes a hepatic hilar vascular blocker, including a rope body 1 and a blocker body 2. The blocker body 2 can be in the shape of a hollow cylinder without covers at both ends. The length of the blocker body 2 is about 4 cm and the diameter is about 1 cm. Figure 3 And the instruction manual Figure 4 , the end of one end of the blocker body 2 is also provided with a first notch 3 and a second notch 4, and the first notch 3 and the second notch 4 are symmetrically arranged along the central axis of the blocker body 2. Specifically, along the edge of the blocker body 2 to the center direction, the widths of the first notch 3 and the second notch 4 respectively decrease successively, and the width ranges may be 5mm, 4mm, 3mm and 2mm respectively. Furthermore, the minimum widths of the first notch 3 and the second notch 4 match the diameter of the rope body 1, and the minimum widths of the first notch 3 and the second notch 4 are arc-shaped. Furthermore, the outer surface of the blocker body 2 is provided with anti-slip grooves, which can play a good anti-slip role.
[0044] The rope body 1 can be made of medical silicone, and a plurality of knots 5 are formed on the rope body 1. The knots 5 serve as positioning members matching the first notch 3 and the second notch 4. Specifically, the spacing between two adjacent knots 5 can be 1 mm. The outer diameter of the knot 5 is larger than the minimum width of the first notch 3 and the second notch 4, and smaller than the inner diameter of the blocker body 2. The diameter of the rope body 1 is smaller than the minimum width of the first notch 3 and the second notch 4.
[0045] When in use, one end of the rope body 1 is clamped at the first notch 3 through one of the knots 5, and the other end passes through the first notch 3 and the blocker body 2 in turn, bypasses the blood vessel 6, and then passes through the blocker body 2 and the second notch 4 in turn, and finally is clamped at the second notch 4 through another knot 5.
[0046] The blocker can be used for both open abdominal surgery and laparoscopic surgery, and can be used to block the portal vessels 6 of the liver such as liver cysts and liver tumors, and can effectively reduce intraoperative bleeding, and the hemostasis effect is safe and reliable. The operation process is very simple and convenient, which can save operation time, time and labor.
[0047] To sum up, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.
Claims
1. A hepatic hilar vascular occluder, characterized in that: The invention comprises a rope body (1) and a hollow blocker body (2); the blocker body (2) is provided with a first notch (3) and a second notch (4), and the first notch (3) and the second notch (4) are symmetrically arranged along the central axis of the blocker body (2); the rope body (1) is provided with a plurality of positioning pieces arranged at intervals and used to match the first notch (3) and the second notch (4); one end of the rope body (1) is used to be clamped at the first notch (3) through one of the positioning pieces, and the other end is used to pass through the first notch (3) and the blocker body (2) in sequence, bypass the blood vessel (6), and then pass through the blocker body (2) and the second notch (4) in sequence, and finally be clamped at the second notch (4) through another positioning piece.
2. The hilar vascular occluder according to claim 1, characterized in that: Along the direction from the edge to the center of the blocker body (2), the widths of the first notch (3) and the second notch (4) decrease in sequence.
3. The hilar vascular occluder according to claim 2, characterized in that: The minimum width of the first notch (3) and the second notch (4) matches the diameter of the rope body (1).
4. The hilar vascular occluder according to claim 3, characterized in that: Along the direction from the edge to the center of the blocker body (2), the widths of the first notch (3) and the second notch (4) are 5 mm, 4 mm, 3 mm and 2 mm respectively.
5. A hepatic hilar vascular occluder according to claim 1 or 4, characterized in that: The distance between two adjacent positioning pieces is 1 mm.
6. The hilar vascular occluder according to claim 5, characterized in that: The positioning member is a rope knot (5).
7. The hilar vascular occluder according to claim 6, characterized in that: The rope body (1) is made of medical silicone.
8. The hilar vascular occluder according to claim 1, characterized in that: The outer surface of the blocker body (2) is provided with anti-slip grooves.
9. The hilar vascular occluder according to claim 1, characterized in that: The blocker body (2) is cylindrical.
10. The hilar vascular occluder according to claim 1, characterized in that: The blocker body (2) has a length of 4 cm and a diameter of 1 cm.