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Catheter

A catheter and lumen technology, applied in the field of catheters, can solve problems such as difficult to distinguish between the main lumen and the auxiliary lumen, laborious operation, and reduced efficiency

Active Publication Date: 2007-10-17
COVIDIEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case it is difficult to distinguish between primary and secondary lumens, reducing efficiency when assembling the catheter during manufacture
Specifically, during the manufacture of catheters, even if different parts such as adapters are connected to the main lumen and the auxiliary lumen, it is difficult to distinguish between the main lumen and the auxiliary lumen, and the operation is laborious

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] A first embodiment of a catheter according to the invention will now be described with reference to the accompanying drawings. 1 shows a dual lumen catheter 10 comprising a catheter body 11 formed from a long flexible tube, a connector 12, a pair of connecting tubing 13a and 13b formed from the flexible tube, and a pair of luer adapters. adapter) 14a and 14b.

[0021] Catheter main body 11 is made of soft polyurethane resin, and as shown in FIGS. The peripheral section 15 is internally divided into two parts. The wall 16 forms two lumens in the peripheral section 15 , a main lumen 11a and a secondary lumen 11b. At positions where the peripheral section 15 intersects the wall 16 , linear contrast radiographic sections 17 a and 17 b made of a contrast radiographic material are provided in the catheter body to extend in the longitudinal direction of the catheter main body 11 .

[0022] A mixture of white barium sulfate and polyurethane resin is used in the polyurethane ...

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PUM

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Abstract

A catheter has an outer peripheral portion (15) in the form of a tube and an internal wall (16, 26) within the tube forming a plurality of lumens (11a, 11b, 21a, 21b). Axially extending linear contrastradiography sections (17a, 17b, 27a, 27b) of radiopaque material are formed at a plurality of intersection points between the outer peripheral section and the wall, the peripheral extent (a, b) of the respective contrastradiography sections being different.

Description

technical field [0001] The present invention relates to a catheter for placement in a blood vessel to deliver medicinal fluids or nutritional supplements to a patient. Background technique [0002] It is known to provide a person (hereinafter referred to as a patient) with a reduced oral feeding function, for example due to old age or disease, with a medicinal fluid or a nutritional supplement for passage through a blood vessel by means of a catheter. high calorie infusion. It is known to determine the position of catheters by adding radiopaque reagents (see eg JP-U-51 108 389). Such a catheter is made of a flexible plastic tube and has a section extending in the axial direction of the plastic tube and containing a radiopaque reagent. The radiopaque agent typically extends in a circumferential direction around the wall of the plastic tube. Thus, where a catheter has been placed in a patient's blood vessel, the position of the catheter can be determined by radiating x-rays...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/01
CPCA61M2025/0037A61M25/0108A61B90/39A61M25/00A61M25/01A61M2205/32
Inventor 井口真伸
Owner COVIDIEN AG