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Medical tube and catheter using the same

A medical tube and lumen technology, which is applied in the field of medical tubes and catheters using the medical tubes, can solve problems such as breakage, bending of catheters, and reduced structural strength of medical tubes, so as to ensure blood flow and prevent structural problems. Intensity reduction effect

Inactive Publication Date: 2011-05-11
ASAHI INTECC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, forming a medical tube by this method leads to a reduction in the structural strength of the medical tube, which is one of the major causes of bending (breaking, damage) of catheters and the like using the medical tube.

Method used

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  • Medical tube and catheter using the same
  • Medical tube and catheter using the same
  • Medical tube and catheter using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] below for Figure 1-7 The case of the shown cardiac guide catheter 10 is taken as an example, and the medical tube of this embodiment will be described. Furthermore, in each figure, for the sake of easy understanding, for members such as the single wires 26a, 26b, side holes 40, 50 of the braided material 26 which are smaller than other parts as shown below, their dimensional relationship with other members is slightly enlarged.

[0035] figure 1 The shown guide catheter (catheter) 10 is a tubular medical device, and the catheter 10 includes: a bendable catheter body 12 (medical tube); a head end 14 fixed on the distal end of the catheter body 12 and the connector 16 fixed on the proximal end of the catheter body 12.

[0036] A bend 112 is provided on the distal portion of the catheter body 12 . When the catheter 10 is inserted into the body, the bent portion 112 engages the distal end portion of the catheter 10 with the coronary artery hole.

[0037] More specifica...

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PUM

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Abstract

Provided is a medical tube that is capable of preventing thrombi from adhering to the inside of a side hole thereof such that a required and sufficient opening area of the side hole is maintained, as well as of preventing a kink from being generated in, e.g., a catheter using the medical tube with the side hole. A side hole is provided through a side surface of a catheter body. A strand of a braid member in the vicinity of the side hole is covered with a resinous protective resin portion, thus being kept from exposure at the inner peripheral surface of the side hole.

Description

[0001] This application is based on Japanese Patent Application No. 2009-249422 filed with the Japan Patent Office on October 29, 2009, the entire contents of which are hereby incorporated herein by reference. technical field [0002] The present invention relates to a medical tube having a hole on its side and a catheter using the medical tube. Background technique [0003] Conventionally, medical devices such as catheters used for insertion into tubular organs such as blood vessels, digestive tract, and urethra, or internal tissues include medical tubes that have metal braids interposed between inner resins made of resin. layer and the outer resin layer. Such medical tubes are used, for example, in catheters such as cardiac guide catheters. Moreover, since this medical tube needs to ensure blood flow and the like during surgery, it has one or more holes (hereinafter referred to as side holes) on the side of the above-mentioned medical tube (for example, refer to Japanese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61L29/12
CPCA61M25/0009A61M25/0052A61M25/007
Inventor 幡野芳雄熊井淑子丹羽慎司
Owner ASAHI INTECC CO LTD
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