Detached coronary artery stent withdrawing catheter

A technology for recycling tubes and coronary arteries, applied in the field of medical devices, to achieve the effects of novel conception, avoidance of scratches, and high success rate

Pending Publication Date: 2018-11-27
韩战营
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method for partially unloaded stents is to pull them back to the brachial artery or radial artery, then surgically incise the blood vessel, take out the stent and suture the blood vessel, which brings additional pain and burden to the patient

Method used

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  • Detached coronary artery stent withdrawing catheter
  • Detached coronary artery stent withdrawing catheter
  • Detached coronary artery stent withdrawing catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 and 2 The coronary off-loading stent recovery catheter shown includes a recovery tube 1 and a connecting tube 2, one end of the recovery tube 1 and the connecting tube 2 is fixedly connected, the other end of the recovery tube 1 is a head end 3, and the head end is set as a bell mouth, The small end of the bell mouth is integrally connected with the recovery pipe 1, and the bell mouth is provided with two creases 5 from the edge to the center, so that the bell mouth can be folded and contracted along the creases 5; the other end of the connecting pipe 2 is connected to the handle 4 .

Embodiment 2

[0025] see figure 1 and 3 The coronary off-loading stent recovery catheter shown includes a recovery tube 1 and a connecting tube 2, one end of the recovery tube 1 and the connecting tube 2 is fixedly connected, the other end of the recovery tube 1 is a head end 3, and the head end is set as a bell mouth, The small end of the bell mouth is integrally connected with the recovery pipe 1, and the bell mouth is provided with three creases 5 from the edge to the center, so that the bell mouth can be folded and contracted along the creases 5; the other end of the connecting pipe 2 is connected to the handle 4.

Embodiment 3

[0027] see figure 1 and 4 The coronary off-loading stent recovery catheter shown includes a recovery tube 1 and a connecting tube 2, one end of the recovery tube 1 and the connecting tube 2 is fixedly connected, the other end of the recovery tube 1 is a head end 3, and the head end is set as a bell mouth, The small end of the bell mouth is integrally connected with the recovery pipe 1, and the bell mouth is provided with four creases 5 from the edge to the center, so that the bell mouth can be folded and contracted along the creases 5; the other end of the connecting pipe 2 is connected to the handle 4.

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Abstract

The invention discloses a detached coronary artery stent withdrawing catheter and belongs to the field of medical apparatuses and instruments. The detached coronary artery stent withdrawing catheter is used for withdrawing a detached coronary artery stent and comprises a withdrawing tube and a connecting tube, wherein the withdrawing tube is fixedly connected with one end of the connecting tube, the other end of the withdrawing tube is a head end, the head end is a horn mouth, the small-opening end of the horn mouth is integrally connected with the withdrawing tube, the horn mouth is providedwith a fold from the edge to the center so that the horn mouth can be folded and shrink along the fold. The other end of the connecting tube is connected with a handle. The detached coronary artery stent withdrawing catheter is simple in structure, novel in concept, capable of effectively wrapping the detached coronary artery stent so as to pull the stent to a guide tube, high in success rate, lowin requirement for operators and also capable of preventing sent steel beam from scraping or hurting the inner wall of the head end of the guide tube.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a catheter for recovering unloaded coronary stents. Background technique [0002] Percutaneous coronary intervention (PCI) refers to the treatment method of dredging narrowed or even occluded coronary artery lumen through cardiac catheterization, so as to improve myocardial blood perfusion. In order to prevent the re-narrowing of the coronary artery lumen, a stent will be inserted into the coronary artery lumen. Therefore, the interventional treatment plan for coronary heart disease is coronary artery stenting, which is an important means of coronary heart disease treatment at present. Only in 2016 In 2010, the total number of interventional treatment cases for coronary heart disease in mainland China reached 666,495. [0003] However, the stent implanted in the coronary artery sometimes shifts, that is, the stent unloads, and the rate of stent unloading is reported internationall...

Claims

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Application Information

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IPC IPC(8): A61F2/95
CPCA61F2/95A61F2002/9528
Inventor 韩战营
Owner 韩战营
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