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Controllable releasing thrumbus filter and its making process

A filter and thrombus technology, which is applied in the field of medical devices, can solve the problems of irrecoverable instantaneous impact force, etc., and achieve the effect of high long-term patency rate, good effect and small wound trauma

Inactive Publication Date: 2006-03-01
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used filters can better capture the shedding thrombus, but there are major disadvantages such as non-recyclable and instantaneous impact force when released

Method used

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  • Controllable releasing thrumbus filter and its making process
  • Controllable releasing thrumbus filter and its making process
  • Controllable releasing thrumbus filter and its making process

Examples

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the invention is described in further detail:

[0026] figure 1 Shown is the controllable-release thrombus filter in Example 1 of the present invention, which is made by laser engraving of super-elastic Ni / Ti memory alloy tubes. Cone mesh. The controllable release thrombus filter in the present invention includes a front end 6 , a rear end 1 , a front segment 4 , a middle segment 3 and a rear segment 2 . The middle section 3 is composed of straight rods, which are equally divided and rotated in the circumferential direction to form concentric cylindrical beams. The rear section 4 is formed by a group of "Y" shaped rods rotated in equal parts. It is a cone net in the released state. The root of each "Y" shaped rod is connected to the rear end 1, and the branch end corresponds to the straight rod end of the middle section 3. connected. The front section 2 is also composed of "Y" shaped rods that are equally...

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Abstract

The present invention relates to one kind of controllable releasing thrombus filter and its making process. The thrombus filter capable of catching fallen thrombus and avoiding thrombosis is made with super elastic metal pipe with shape memory effect and through laser carving. The thrombus filter has combining part in the end for fitting the sender. Compared with available technology, the present invention has the advantages of being recoverable, capacity of being set inside blood vessel temporarily or permanently, and no position shift caused by impact during being set.

Description

technical field [0001] The invention relates to a medical device, in particular to a controllable release thrombus filter and a manufacturing method thereof. Background technique [0002] Pulmonary thromboembolism is a serious complication after deep vein thrombosis, and the use of heparin can effectively treat pulmonary thromboembolism. However, in some cases, a mechanical device must be placed in the inferior vena cava to prevent the ascending of emboli and prevent or reduce pulmonary thromboembolism. The traditional surgical method is to interrupt the blood flow of the inferior vena cava by ligation or clamping, which requires general anesthesia and has a high mortality rate. The method of percutaneously inserting the inferior vena cava filter is simple, effective, and has few and mild complications. It has been widely used in recent years. [0003] There are many types of existing inferior vena cava thrombus filter, such as Kimray Greenfield filter (KGF) is exactly one...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01
Inventor 訾振军臧式先冯耀庭曾敏吕世文张智伟孔祥清于波华益民
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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