Novel balloon urethral catheter

A catheter and balloon tube technology, which is applied in the field of thermoplastic material and thermosetting material multi-layer composite balloon catheter, can solve the problem of adhesion and blockage of the balloon filling cavity, inability to empty, and the liquid drainage cavity becomes smaller flow and other problems, to achieve the effect of high strength, small deformation rate, and strong supporting force

Active Publication Date: 2014-11-05
海南维力医疗科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 relatively small, resulting in large resistance and difficult operation during filling and emptying of the balloon. (3) Since the filling lumen of the balloon is elastic, the balloon can be discharged after clinical use Negative pressure is easy to be generated during empty operation, causing the risk of adhesion and blockage of the balloon filling cavity that cannot be emptied for a long time

Method used

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  • Novel balloon urethral catheter
  • Novel balloon urethral catheter
  • Novel balloon urethral catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 2 to Figure 4 As shown, a new type of balloon catheter includes a tube body 1, the tube body 1 is provided with a fluid drainage lumen 1A and a balloon filling lumen 1B, and the tube body 1 includes an inner layer tube 11 , the balloon tube 12 and the outer layer 13, the balloon filling cavity 1B is arranged in the tube wall of the inner layer tube 11 and communicated with the balloon tube 12, the balloon filling cavity 1B is set In the tube wall of the inner tube 11, a liquid inlet hole 111 is provided at the end of the inner tube inserted into the bladder, the outer layer 13 is wrapped on the surface of the inner tube 11, and the balloon The tube 12 is arranged between the inner layer tube 11 and the outer layer 13, more specifically, it is arranged at the tail of the tube body 1, wherein the inner layer tube 11 is a thermoplastic material, and the outer layer 13 is a thermosetting material. In practical application, the tube wall of the inner tube 1...

Embodiment 2

[0044] Such as Figure 5 to Figure 7 As shown, this embodiment is roughly the same as Embodiment 1, except that an inner tube skin 15 composed of one or more layers of thermosetting material is arranged between the inner tube 11 and the outer layer 13. The balloon tube 12 is connected to the inner tube skin 15 . Correspondingly, the manufacturing process is slightly different from that of Example 1. First, the inner tube 11 is prepared by one extrusion, and then the inner tube skin 15 is prepared by dipping in glue after the above-mentioned three methods, and then the balloon tube is sleeved and fixed. 12, and then multiple times of dipping to prepare the outer layer 13, and finally install the joint 16 and siliconize the surface to obtain the finished product.

[0045] The advantage of this arrangement is that the inner tube 11 can be connected with the inner tube skin 15 only through one treatment, without being directly connected with the balloon tube 12. The treatment met...

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Abstract

The invention discloses a novel balloon urethral catheter which comprises a catheter body. The catheter body comprises an inner layer catheter tube and an outer layer wrapping the surface of the inner layer catheter tube, a balloon tube is arranged between the inner layer catheter tube and the outer layer, a balloon filling cavity channel communicated with the balloon tube is formed in the catheter wall of the inner layer catheter tube, the inner layer catheter tube is made of thermoplastic materials, and the outer layer is made of thermosetting materials. The novel balloon urethral catheter is capable of guaranteeing smoothness of a liquid drainage cavity channel and the balloon filling cavity channel, and lowering medical risks when products are used and machining difficulty when the products are machined.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multi-layer composite balloon urinary catheter of thermoplastic material and thermosetting material. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61L29/04A61L29/06
Inventor 向彬刘铜
Owner 海南维力医疗科技开发有限公司
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