Catheter

A catheter and catheter body technology, applied in the direction of the catheter, etc., can solve the boundary between the proximal end of the nozzle and the distal end of the catheter body, the tip of the nozzle is stuck on the narrow part, the torque transmission of the catheter body and the nozzle is reduced, etc. problems, achieving high flexibility, avoiding sudden changes in softness or flexibility, and excellent torque transmission

Active Publication Date: 2013-06-12
ASAHI INTECC CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the nozzle reaches the narrow part, the tip of the nozzle may get stuck on the narrow part. In the state where the nozzle cannot be rotated, even if the catheter body is rotated, there will be a gap between the proximal end of the nozzle and the distal end of the catheter body. There is also the case where the torsional stress concentration acts on the boundary part of the part
In addition, since the nozzle is soft, it is also confirmed that the torque transmission between the catheter body and the nozzle tends to decrease

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catheter
  • Catheter
  • Catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Next, in order to describe the present invention more specifically, the catheter structure of the present invention will be described in detail with reference to the accompanying drawings.

[0041] first, figure 1 As one embodiment of the catheter having the structure of the present invention, a catheter used for inserting into a cardiac blood vessel in which a stenosis is formed to dilate the stenosis in the blood vessel is shown. From figure 1 It can be seen that the catheter 10 of this embodiment includes: a catheter body 11; a flexible nozzle 12, which is arranged on the distal end (tip) of the catheter body 11;

[0042] More specifically, from figure 1 and figure 2 It can be seen that the catheter body 11 is composed of a hollow elongated member, and the hollow elongated member has a lumen 16 into which a guide wire can be inserted. Here, the overall length of the catheter main body 11 is set to be about 1500 mm. In addition, the portion of the catheter main ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A catheter body includes a hollow coil whose outer and inner surfaces are coated with outer and inner resin layers. A resin tip is provided at a distal end of the catheter body. The tip has a tapered section at a distal end of the tip. Also, an axially extending braid is embedded in the catheter body and the tip to extend from the catheter body to the tip.

Description

technical field [0001] The present invention relates to catheters having a catheter body consisting of coiled tubing. Background technique [0002] Catheters having a catheter main body made of a coiled body are known as catheters that are inserted into human tubular organs such as blood vessels, digestive canals, and urinary catheters or tissues in the body (for example, refer to Patent Documents 1 and 2). , while the coil body is formed by winding or twisting multiple metal wires. In addition, there is also a catheter in which a coiled body constituting the catheter main body is covered with resin, and a cylindrical resin nozzle having a tapered portion is provided at the distal end (tip portion) thereof (for example, refer to The following patent document 3). [0003] These catheters can exhibit excellent torque transmission performance because the catheter body is constituted by a coil body. Therefore, it is suitable for use, for example, in an operation to maintain a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00
CPCA61M2025/0081A61M25/0108A61M25/0053A61M2025/0059A61M25/005
Inventor 下神学渡边允祥
Owner ASAHI INTECC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap