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Simple portal vein thrombus fetching device for liver transplantation

A simple portal and portal vein technology is applied in the field of medical devices to achieve the effects of simple device, easy operation and convenient use

Inactive Publication Date: 2017-02-08
SHANGHAI FIRST PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, there is an urgent need for a portal vein thrombectomy device that is simple in device, reduces bleeding, and can completely remove portal vein thrombus at one time, but there is no report about this thrombus removal device at present

Method used

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  • Simple portal vein thrombus fetching device for liver transplantation
  • Simple portal vein thrombus fetching device for liver transplantation
  • Simple portal vein thrombus fetching device for liver transplantation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The usage method of a simple portal vein thrombus removal device for liver transplantation of the present invention is as follows, as follows: Figure 6 As shown, use three-needle sutures to retract the portal vein vessel wall; put the thrombus snare 1 on the portal vein thrombus, use the hollow tube 4 to resist the lock 2, and stretch the other end of the thrombus snare 1 outward to make the thrombus snare 1 Tighten, and the barb 3 ensures that the thrombus snare 1 is tightened and will not loosen; remove the connection between the head of the thrombus snare 1 and the ring 6, and remove the hollow tube 4; slowly insert the thrombus separator 5 in the direction of the superior mesenteric vein The selected thrombus separator 5 has a diameter of 8 mm; the thrombus is separated from the portal vessel wall by using the thrombus separator 5;

Embodiment 2

[0035] The usage method of a simple portal vein thrombus removal device for liver transplantation of the present invention is as follows, as follows: Figure 6 As shown, use three-needle sutures to retract the portal vein vessel wall; put the thrombus snare 1 on the portal vein thrombus, use the hollow tube 4 to resist the lock 2, and stretch the other end of the thrombus snare 1 outward to make the thrombus snare 1 Tighten, and the barb 3 ensures that the thrombus snare 1 is tightened and will not loosen; remove the connection between the head of the thrombus snare 1 and the ring 6, and remove the hollow tube 4; slowly insert the thrombus separator 5 in the direction of the superior mesenteric vein The selected thrombus separator 5 has a diameter of 16 mm; the thrombus is separated from the portal vessel wall by using the thrombus separator 5;

[0036] The invention has the advantages of simple device, easy production and large-scale popularization, convenient use and easy op...

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Abstract

The invention discloses a simple portal vein thrombus fetching device for liver transplantation. The thrombus fetching device is characterized by being provided with a thrombus snare device and a thrombus separator, wherein the thrombus snare device is provided with a thrombus snare, a lock, a barb and a hollow tube; the lock is arranged at the tail of the thrombus snare; the barb is arranged inside the lock; the head of the thrombus snare passes through the lock; the hollow tube is sleeved at the head of the thrombus snare; a ring is arranged at one end of the hollow tube; the head of the thrombus snare is connected with the ring; and the thrombus separator is of a hollow structure. The thrombus fetching device disclosed by the invention has the following advantages: the device is simple, and the production and large-scale promotion are facilitated; the device is convenient to use and easy to operate; and bleeding in an operation is reduced, and the portal vein thrombus can be completely fetched once.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a simple portal vein thrombectomy device for liver transplantation. Background technique [0002] Liver transplantation is currently the most effective surgical method for the treatment of end-stage liver disease and early liver cancer. Liver transplantation is one of the most complicated operations in surgery due to its large scope, long duration, and many organs and channels involved. Most patients undergoing liver transplantation suffer from liver cirrhosis and portal hypertension, resulting in deceleration of portal blood flow or formation of reverse blood flow. Some patients have splenectomy due to liver cirrhosis and hypersplenism. These factors are likely to promote the formation of portal vein thrombosis. For liver transplant patients with portal vein thrombosis, the portal vein thrombosis must be completely removed during the operation to ensure the survival of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22012A61B17/221A61B2017/0023A61B2017/2212A61B2217/002
Inventor 孙红成彭志海
Owner SHANGHAI FIRST PEOPLES HOSPITAL