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Adjustable twisting thrombectomy device

A control handle and control button technology, applied in medical science, surgery, etc., can solve the problems of high risk of thrombus escape, poor thrombus capture effect, and uncontrollable thrombus grasping, so as to reduce the risk of thrombus escape and improve the effect.

Pending Publication Date: 2022-03-11
BEIJING TAIJIE WEIYE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, especially in the above examples, the mesh of the thrombus retrieval stent is uncontrollable when grasping the thrombus, which has poor thrombus capture effect and thrombus escape. high risk deficiency

Method used

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  • Adjustable twisting thrombectomy device
  • Adjustable twisting thrombectomy device
  • Adjustable twisting thrombectomy device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0061] Solution 1, the control button 2 realizes the control of the thrombectomy support 5 by pushing and pulling the carrying core wire 3 .

[0062] In this solution, along the length direction of the bearing core wire 3, the bearing core wire 3 is provided with a spiral guide marking 10 near the far end of the core wire, and the axis of the guide marking 10 is aligned with the axis of the bearing core wire 3. Coincident; the far end of the delivery is provided with a guide port that slides and fits with the guide mark 10. The control button 2 is connected to the proximal end of the core wire, and can move (push and pull) the load-bearing core wire 3 along the length direction of the load-bearing core wire 3 . When the load-bearing core wire 3 is pushed and pulled, the load-bearing core wire 3 and the conveying tube 4 undergo relative displacement. The core wire 3 not only translates along the length direction, but also is forced to rotate at the guide port, and then drives ...

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Abstract

The invention belongs to the technical field of interventional therapy instruments, and particularly relates to an adjustable twisting thrombectomy device which comprises a conveying pipe, a bearing core wire, a control handle and a thrombectomy support. The conveying pipe is provided with a conveying near end and a conveying far end; the bearing core wire is inserted into the conveying pipe in a penetrating mode and is provided with a core wire near end extending out of the conveying near end and a core wire far end extending out of the conveying far end. The control handle is provided with a control button, and the control button is connected with the near end of the core wire and used for enabling the bearing core wire to move; the thrombus extraction support surrounds the outer side of the bearing core wire, one end of the thrombus extraction support is connected with the far end of the core wire, the other end of the thrombus extraction support is connected with the far conveying end, and the thrombus extraction support is used for expanding and twisting to wrap thrombus when the bearing core wire moves. The thrombus extraction support can be controlled, expansion of the thrombus extraction support and the size of meshes during thrombus extraction are controlled, and therefore the thrombus capture effect is improved, and the thrombus escape risk is reduced.

Description

technical field [0001] The invention belongs to the technical field of interventional treatment instruments, in particular, the invention relates to an adjustable twisting thrombectomy device. Background technique [0002] A thrombus is a small piece of blood that forms on the surface of a vessel in the cardiovascular system where the lining has been peeled off or repaired. A thrombus consists of insoluble fibrin, deposited platelets, accumulated white blood cells, and trapped red blood cells. [0003] In the prior art, there are many thrombectomy devices, for example, in the patent with the application number 201620535171.9, the application date is June 6, 2016, and the invention name is a stent-like thrombectomy device and a thrombus retriever with a filter. In the application documents, a thrombectomy device with sparse mesh at the head end and dense mesh at the tail end is disclosed; the application number is 201710170254.1, the application date is March 21, 2017, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2212
Inventor 穆磊程文杰许永松王孟静武永昭张宏庆范文吉
Owner BEIJING TAIJIE WEIYE TECH
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