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Catheter conveying system

A delivery system and catheter technology, which is applied in the field of medical devices, can solve the problems of low bending resistance and the inability of the inner tube to meet the tensile breaking capacity at the same time

Active Publication Date: 2021-06-08
KINGSTRONBIOCHANGSHU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This application relates to a catheter delivery system to solve the above-mentioned inner tube in the prior art that cannot meet the requirements of high breaking resistance and low bending resistance at the same time, and effectively improve the catheter's ability to pass through the arch

Method used

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Embodiment Construction

[0046] In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0047] It should be clear that the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0048] Terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0049] It should be understood that the term "and / ...

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Abstract

The invention relates to a catheter conveying system. The catheter conveying system comprises an inner tube, wherein the inner tube comprises a straight section part and a turning part, one end of the turning part is fixedly connected with one end of the straight section part, the cross section of the turning part is in the shape that the wall thickness in the bending direction is smaller than the wall thickness perpendicular to the bending direction, and the cross section of the turning part can be in an oval shape or an oval-like shape. According to the application, by changing the shape of the turning part, the wall thickness of the turning part in the bending direction is reduced, so that the turning part has relatively low bending resistance, and the turning part can conveniently pass through the main bend of a blood vessel; and in addition, the wall thickness of the turning part in the direction perpendicular to the bending direction is relatively large, and compared with the straight section part, the sectional area reduction amount is smaller or not reduced, so that it can be guaranteed that the whole inner tube still has higher tensile failure resistance, and the bend passing capacity can be effectively improved.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a catheter delivery system. Background technique [0002] Interventional therapy is a rising subject. It is a treatment method that uses minimally invasive methods to open natural channels in the body, such as blood vessels, and uses a delivery system to deliver medical devices to the lesion for treatment and replacement. [0003] Interventional valve implantation is to compress the interventional valve and put it into the distal container of the delivery system, and then the delivery system sends the interventional valve to the replacement site through the artery or vein for income, release, installation or recovery operations, and the delivery system is retracted. Complete the implantation of the interventional valve. [0004] However, due to the limitation of the diameter of arteries or veins, the diameter of the delivery system is strictly limited and canno...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2436
Inventor 钟生平靳永富
Owner KINGSTRONBIOCHANGSHU CO LTD
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