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Foreign body snare for vascular interventional therapy

A technology of interventional therapy and foreign body circle, applied in the field of medical equipment, can solve the problems of difficult adjustment of the angle, difficult to grasp the inferior vena cava filter, small contact area, etc., and achieve the effect of easy retrieval

Inactive Publication Date: 2021-07-09
孟自力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing intravascular snare used to recover the inferior vena cava filter has a circular front end and a small contact area, making it difficult to grasp the inferior vena cava filter, and the angle is not easy to adjust, so it is difficult to retract the inferior vena cava filter

Method used

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  • Foreign body snare for vascular interventional therapy
  • Foreign body snare for vascular interventional therapy
  • Foreign body snare for vascular interventional therapy

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention provides a foreign body snare for vascular interventional therapy. A foreign body snare for vascular interventional therapy includes a catheter and a guide wire 1; the catheter includes...

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Abstract

The invention discloses a foreign body snare for vascular interventional therapy. The foreign body snare comprises a catheter and a guide wire. The catheter comprises an operation catheter and a stretching catheter; a rotating shaft and an adjusting mechanism are arranged at the joint of the operation catheter and the stretching catheter; the guide wire penetrates through the operation catheter and extends into the catheter inner tube, and the end, extending out from the stretching catheter, of the guide wire, is further connected with a metal net; the stretching front end opening of the stretching catheter is an inclined opening. The opening at the stretching front end of the stretching catheter is the inclined opening, so that the contact area with an inferior vena cava filter is increased, the inferior vena cava filter is conveniently grabbed, the stretching catheter is adjusted within a certain angle range in cooperation with the adjusting mechanism, and the inferior vena cava filter is conveniently taken back.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a foreign body snare for vascular interventional treatment. Background technique [0002] Deep venous thrombosis (DVT) of lower extremities is a common clinical disease and the main cause of pulmonary embolism (PE). Pulmonary embolism has a high mortality and disability rate. The placement of an inferior vena cava filter (IVCF) can effectively prevent pulmonary embolism. The basic principle is to capture large fatal emboli through the filter placed in the vena cava and prevent them from entering the pulmonary circulation. The use of venous filters is now more and more widespread. In order to improve the use effect of filters, reduce the impact of complications, and make thrombolytic therapy safer, people continue to propose new designs for filters, or modify and improve existing filters. [0003] However, the existing intravascular snare used to recover the inferior ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01A61B17/22
CPCA61B17/22004A61B17/2202A61B2017/00867A61B2017/0092A61B2017/22025A61B2017/22038A61B2017/22084A61F2/01
Inventor 孟嘉天孟自力张志华
Owner 孟自力
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