Thrombus capturing device

A technology of capturing device and thrombus, applied in medical science, surgery, etc., can solve the problems of low thrombectomy efficiency, flow to distal blood vessels, weak thrombus capture ability, etc., so as to reduce the risk of blood vessel re-embolization and have strong capture ability. , The effect of high thrombectomy efficiency

Pending Publication Date: 2019-10-18
ZHUHAI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the mechanical thrombectomy devices currently used clinically have a single-layer stent structure. Not only is the ability to capture thrombus weak, but the efficiency of thrombus removal is low, and it needs to be pushed and pulled repeatedly during operation, resulting in the thrombus fragments in the blood vessel easily falling off and flowing. Distal vessels, increasing the patient's risk of vascular reembolization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A thrombus capture device, comprising:

[0053] Recovery catheter 1;

[0054] A delivery catheter 2, the delivery catheter 2 is movably sleeved in the recovery catheter 1;

[0055] A traction guide wire 3, the traction guide wire 3 is arranged on the central axis in the delivery catheter 2, and moves along the direction of the central axis relative to the delivery catheter 2, the traction guide wire 3 has two traction ends and a pusher end a terminal;

[0056] A thrombus capture mechanism 5, the thrombus capture mechanism 5 is fixedly arranged on the traction guide wire 3;

[0057] A blood vessel blocking mechanism 4, the blood vessel blocking mechanism 4 is fixedly arranged on the pulling guide wire 3, between the pulling end and the thrombus capturing mechanism 5;

[0058] A debris intercepting mechanism 6, said debris intercepting mechanism 6 is fixedly arranged on said traction guide wire 3, between said advancing end and said thrombus capturing mechanism 5; and ...

Embodiment 2

[0071] When the thrombus capture device of the embodiment of the present invention works:

[0072] The recovery catheter 1 is sent into the vicinity of the thrombus 9 in the blood vessel 8 through the control system, such as Figure 4 shown;

[0073] The recovery catheter 1 is fixed by the control system, and then the delivery catheter 2 is pushed and passed through the thrombus 9, as Figure 5 shown;

[0074] The traction guide wire 3 is fixed by the control system, and the delivery catheter 2 is retracted to the outlet of the recovery catheter 1, as Image 6 As shown, the vascular occlusion mechanism 4, the thrombus capture mechanism 5 and the fragment interception mechanism 6 arranged on the traction guide wire 3 are released into the blood vessel 8, and the vascular occlusion mechanism 4 is in the shape of a trumpet when it is released, and is in contact with the vessel wall And the blood vessel 8 is temporarily blocked to slow down the blood flow speed, prevent the blo...

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Abstract

The embodiment of the invention provides a thrombus capturing device. The thrombus capturing device comprises a recovering catheter, a conveying catheter, a traction guide wire, a blood vessel blocking mechanism, a thrombus capturing mechanism, a debris intercepting mechanism and a developing ring. When the thrombus capturing device works, by using the a blood vessel blocking mechanism, the thrombus capturing mechanism and the debris intercepting mechanism in cooperation, under the assistant positioning of the developing ring, thrombi and thrombus debris can be conveniently and effectively captured and cleared away thoroughly.

Description

technical field [0001] The invention belongs to the technical field of vascular disease treatment devices, and in particular relates to a thrombus capture device. Background technique [0002] In today's society, people's pace of life is accelerating, and bad living habits are common, leading to an increasing number of people suffering from vascular diseases. Thrombus is a blood clot formed by abnormal aggregation of red blood cells, platelets and fibrin in blood vessels in different proportions under the pathological conditions of the secondary endogenous or extrinsic coagulation system. Thrombosis may form in both arteries and veins, not limited to myocardial infarction, deep vein thrombosis, or cerebrovascular thrombosis. Thrombus can also spread throughout the body, tissues and organs, and occur in blood vessels anywhere in the body. [0003] After thrombus forms in blood vessels, it will cause vascular occlusion and blockage of blood flow, causing ischemia, hypoxia and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/22038A61B2017/22094
Inventor 马国睿吴锋张凌风
Owner ZHUHAI INST OF ADVANCED TECH
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