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Intrusive medical catheter with markers and manufacturing method of intrusive medical catheter

A medical catheter, interventional technology, applied in the direction of catheter, coating, etc., can solve the problems of difficult identification, surface convex and concave ink falling off, etc., and achieve the effect of fine production, bright color and firm adhesion

Active Publication Date: 2017-12-01
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides a marked interventional medical catheter and its preparation method, the purpose of which is to combine the laser marked marking layer and the biocompatible contact layer , so as to solve the technical problem of difficult identification or biocompatibility risk caused by surface bumps or ink shedding of marked interventional medical catheters

Method used

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  • Intrusive medical catheter with markers and manufacturing method of intrusive medical catheter
  • Intrusive medical catheter with markers and manufacturing method of intrusive medical catheter

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Effect test

preparation example Construction

[0042] The preparation method of the marked interventional medical catheter provided by the present invention comprises the following steps:

[0043] (1) Freshly prepare the marking layer material: uniformly disperse the photosensitizer and the contrast agent in the biocompatible polymer material substrate of the marking layer to obtain the freshly prepared marking layer material;

[0044] Preferably, the photosensitizer is uniformly dispersed in the biocompatible polymer material substrate of the marking layer, specifically:

[0045] (1-1) Add the base material, and the pre-broken and wet photosensitizer according to the formula to the high-speed mixer, so as to evenly adhere to the polymer base material;

[0046] (1-2) Stir and cool the substrate and photosensitizer mixture obtained in step (1-1) until the mutual adhesion between the particles of the mixture is released.

[0047] Said uniformly dispersing the contrast agent in the marking layer biocompatible polymer materia...

Embodiment 1

[0061] An interventional medical catheter with a marker, the catheter structure is a single-lumen tube, including a layer of tightly bonded marker layer and a contact layer, the marker layer is white, has photosensitivity, and has a photosensitive marker pattern, the pattern is black The contact layer is transparent, does not have photosensitivity, and has a light transmittance of 90%, and is a biocompatible polymer material layer. The inner diameter of the catheter is 0.8mm, the outer diameter is 1mm, and the length is 1m; the thickness ratio of the marking layer to the contact layer is 1:2.5.

[0062] The pattern of the marking layer, such as figure 1 As shown, it is used to measure the position and depth of catheter intervention.

[0063] The marking layer includes a photosensitizer with a mass fraction of 4%, and the photosensitizer is nano titanium dioxide particles. The particle size of the nano titanium dioxide particles is 0.2um. The marking layer also includes 20% ...

Embodiment 2

[0077] An interventional medical catheter with a mark, which is a 5-lumen tube, includes a tightly bonded marking layer and a contact layer, the marking layer is white, has photosensitivity, and has a photosensitive mark pattern, and the pattern is black; the contact layer The layer is transparent, does not have photosensitivity, and has a light transmittance of 80%, and is a biocompatible polymer material layer. The inner diameter of a single cavity in the 5-lumen tube is 0.3mm, 0.5mm, 1.0mm, 1.4mm, 1.6mm, the outer diameter of the entire multi-lumen tube is 3.6mm, and the length is 2m; the thickness ratio of the marking layer to the contact layer is 1:10.

[0078] The pattern of the marking layer is designed according to usage requirements.

[0079] The marking layer includes a photosensitizer with a mass fraction of 0.25%, and the photosensitizer is nano tin dioxide particles. The nano tin dioxide particles have a particle diameter of 0.5um. The marking layer also includ...

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Abstract

The invention discloses an intrusive medical catheter with markers and a manufacturing method of the intrusive medical catheter. The medical catheter comprises a marker layer and a contact layer which are in closed combination. The marker layer having photosensitiveness is provided with photosensitive marked patterns; the contact layer is transparent and refers to a compatible polymeric material layer. The manufacturing method includes firstly, preparing the material of the marker layer on site; secondly, subjecting the base materials of the marker layer and the compatible polymeric material layer of the contact layer to extrusion molding simultaneously; thirdly, curing the marker layer and the contact layer obtained in the second step; fourthly, by laser, carrying out photosensitive marking to a prefabricated catheter obtained in the third step. The catheter has the patterns highly recognizable, has no risk of coming off of ink, and has smooth surface and good biological compatibility. The manufacturing method is applied to manufacturing intrusive medical catheter with high-precision patterns.

Description

technical field [0001] The invention belongs to the field of medical devices, and more specifically relates to a markable interventional medical catheter and a preparation method thereof. Background technique [0002] Interventional medical catheter is an important device in the field of interventional medicine. Precision medical catheters can constitute independent interventional medical devices, and can also be used as components of interventional medical devices, such as balloon dilatation catheters, central venous catheters, micro-floating catheters, trocar peripheral catheters, ablation catheters, and interventional sensing and measuring catheters Wait. [0003] Interventional precision medical catheters have the characteristics of small size and precise structure, and they need to have smooth and flat surfaces and good biocompatibility. Some of the catheters need to form clearly identifiable marks to judge the position or measurement, or form various text symbol info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00B29C47/00
CPCA61M25/0009A61M25/0012A61M25/0021A61M25/0045A61M2025/0008A61M2025/006B29C48/09
Inventor 胡蝶张垒孙雪婷陈苏汪洪海王瑞春
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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