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Foldable hollow annular antibacterial catheter

A technology for urinary catheters and circular pipes, applied in the direction of balloon catheters, catheters, hollow probes, etc., can solve problems such as easy to cause urethral bleeding, affect work efficiency, and patient pain, and achieve improved biocompatibility and lubricity , not easy to reject, reduce pain

Inactive Publication Date: 2021-01-08
浙江桐轩医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. When the existing urinary catheter enters the interior of the patient, the patient suffers from pain or even bleeding due to its large volume;
[0006] 2. When the existing urinary catheter enters the patient, it is difficult to place it because there is no buffer structure in front of it, which affects work efficiency;
[0007] 3. Currently, when the urinary catheter enters the patient, the patient will have a strong foreign body discomfort, and it is easy to cause urethral bleeding

Method used

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  • Foldable hollow annular antibacterial catheter
  • Foldable hollow annular antibacterial catheter
  • Foldable hollow annular antibacterial catheter

Examples

Experimental program
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Effect test

preparation example Construction

[0048] The raw materials for the preparation of the hydrophilic coating liquid include, in parts by weight, 15-25 parts of hydrophilic polymers, 5-10 parts of antibacterial agents, 1-5 parts of sodium hyaluronate, and 1-5 parts of dendritic polyamide-amines. 3 parts, 2-5 parts of N,N-dimethylacrylamide, 30-40 parts of organic solvent, 45-65 parts of deionized water.

[0049] The hydrophilic polymer is selected from one or more of polyvinylpyrrolidone, polyethylene glycol, polyacrylic acid, polyphosphate, polyvinyl alcohol, polyethylene oxide, and carboxymethyl cellulose.

[0050] In order to improve the biocompatibility and lubricity of the coating, in some preferred embodiments, the hydrophilic polymer is a mixture of polyethylene glycol and polyvinylpyrrolidone in a weight ratio of (1-3):1.

[0051] In order to improve the bonding strength between the coating and the balloon, in some preferred embodiments, the polyethylene glycol is a mixture of polyethylene glycol with a mo...

Embodiment 1

[0064] see Figure 1-4 , a foldable hollow annular antibacterial urinary catheter provided in this embodiment includes a balloon 1, a water delivery pipe 2, a hollow annular pipe 3, and a filling ring 6. Several folded layers 101 are arranged inside the balloon, and the balloon The material of the balloon 1 is polyvinyl chloride. The inflation ring 6 is arranged on the balloon 1. Every two folded layers 101 are connected by a fold line 103. A support layer 102 is arranged on the fold line 103. The fold line 103 connects each folded layer. 101 can be folded to form a hollow annular pipe 3;

[0065] Further, by setting several folded layers 101 inside the balloon 1, every two folded layers 101 are connected by a fold line 103, and a support layer 102 is set on the fold line 103, and the balloon 1 is used to The inner folding layer 101 is folded with the folding line 103, and is punched and expanded after entering the urethra, so as to reduce the pain of the patient when enterin...

Embodiment 2

[0072] see Figure 5 , similar to Example 1, a foldable hollow annular antibacterial catheter is provided, but a hydrophilic coating layer 4 is provided on the outer surface of the balloon 1 .

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Abstract

The invention discloses a foldable hollow annular antibacterial catheter. The foldable hollow annular antibacterial catheter comprises a balloon, a water delivery pipeline, a hollow annular pipeline and a filling ring; a plurality of folding layers are arranged in the balloon; and the surface of the balloon can be wrapped with a hydrophilic coating layer. The folding layers in the balloon are provided with folding lines for folding, stamping expansion is conducted after the balloon enters the urethra, and pain of a patient caused by the fact that the catheter enters the urethra is reduced. A urine outlet connector is arranged at one end of the balloon, and a urine inlet is formed in the other end of the balloon, so that when the catheter enters the patient, the urine inlet can reduce paincaused by urethral distraction of the patient and protect the urethra of the patient. In addition, the biocompatibility, the lubricity and the antibacterial property of the catheter are improved through the hydrophilic coating, and discomfort and infection risks of a patient are reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a foldable hollow annular antibacterial catheter. Background technique [0002] Urinary catheterization is the most common basic operation in clinical practice. At present, ordinary catheters made of rubber or silicone are mostly used to pass through the urethra and reach the bladder for catheterization. [0003] With the aging of the population in our country, most elderly men will suffer from benign prostatic hyperplasia. Due to benign prostatic hyperplasia, the posterior urethra becomes longer, narrower and curved, as well as the bladder neck is elevated, posterior urethral stricture, acute urinary retention causes bladder neck spasm, etc. Various reasons usually make the urethra unable to move forward after the ordinary catheter arrives, which often leads to catheterization failure and urethral mucosal damage. At this time, a catheter is needed to assist it in cathete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M25/00A61L29/08A61L29/14A61L29/16
CPCA61L29/085A61L29/14A61L29/146A61L29/16A61L2300/216A61L2300/236A61L2300/404A61L2300/606A61M25/0017A61M25/0026A61M25/1002A61M2025/1004A61M2025/1075C08L71/02C08L5/08C08L39/06C08L79/02
Inventor 沈坤
Owner 浙江桐轩医疗科技有限公司
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