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Sacculus catheter and preparing methods thereof

The technology of a urinary catheter and a balloon tube is applied in the field of the balloon urinary catheter and its preparation, which can solve the problems of unstable structure, poor performance, incompatibility, etc., and achieves strong supporting force, high strength and good Compatibility effect

Active Publication Date: 2015-02-25
GUANGZHOU WELLLEAD MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, there is an urgent need to develop a balloon catheter that can overcome the above defects and solve the problems of structural instability and poor performance of the tube itself due to material incompatibility.

Method used

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  • Sacculus catheter and preparing methods thereof
  • Sacculus catheter and preparing methods thereof
  • Sacculus catheter and preparing methods thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0052] A balloon catheter such as Figure 2-4 As shown, it includes a tube body 1, the top of the tube body 1 is provided with an excretion hole 2, the tube body 1 is provided with a balloon tube 3, and the tube body 1 includes an inner layer tube 4 and wrapped in The outer layer 5 on the surface of the inner tube 4, the balloon tube 3 is arranged between the inner tube 4 and the outer layer 5, and the tube wall of the inner tube 4 is provided with a The balloon filling lumen 6 connected by the balloon tube 3 described above, the center of the inner tube is the liquid diversion lumen 7 connected with the excretion hole 2, figure 2 The state when filling the balloon tube 3 with liquid.

[0053] The specific preparation process is:

[0054] Step 1: Prepare the inner layer tube: use an extruder to carry out extrusion molding, and the thickness of the tube wall is 2.0 mm.

[0055] Step 2: Sleeve a balloon tube on the top of the inner tube, the balloon tube is made of composite...

specific Embodiment 2

[0059] Same as Example 1, except that the mass ratio of PU and NR of composite material A is 15:95.

specific Embodiment 3

[0060] Same as Example 1, except that the mass ratio of PU and NR of composite material A is 20:80.

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Abstract

The invention discloses a sacculus catheter and preparing methods thereof. The sacculus catheter comprises a catheter body, a sacculus tube is arranged in the catheter body, the catheter body comprises an inner layer tube and an outer layer wrapping the surface of the inner layer tube, the sacculus tube is arranged between the inner layer tube and the outer layer, and a sacculus filling cavity channel communicated with the sacculus tube is arranged in the wall of the inner layer tube; the inner layer tube is made of thermoplastic materials, and the outer layer is a thermosetting material layer or a composite material layer; when the outer layer is the composite material layer, the outer layer adheres to the surface of the inner layer tube in a wrapping mode; the outer layer and the composite material in a first medium layer are formed by mixing the thermosetting materials and thermoplastic materials. The invention further provides the preparing methods of the sacculus catheter. The sacculus catheter can guarantee that a liquid drainage cavity channel and the sacculus filling cavity channel are smooth, the medical risk caused when the product is used is reduced, the structure of the product is stable, and the resetting performance of a sacculus is good when the sacculus catheter is used.

Description

technical field [0001] The invention relates to a balloon catheter, in particular to a balloon catheter with stable structure and excellent performance and a preparation method thereof. Background technique [0002] Existing medical balloon catheters are mostly made of a single thermosetting material, such as natural latex, silicone rubber, and the like. [0003] The existing balloon catheter made of natural latex has good tensile strength, and the tube body is soft and elastic, and is widely used clinically. However, the balloon catheter made of this material also has a natural defects, such as: (1) when the balloon is inflated, the tube body at the balloon site will be stretched, causing the fluid drainage channel in this area to become smaller and affecting the flow rate during fluid drainage; (2) to ensure that the outer diameter and inner diameter of the tube body conform to According to the standard, the filling lumen of the existing latex balloon catheter is relative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61L29/04A61L29/06
Inventor 向彬文显生
Owner GUANGZHOU WELLLEAD MEDICAL EQUIP CO LTD
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