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Positive feedback catheter

A positive feedback, urinary catheter technology, applied in balloon catheters and other directions, can solve problems such as the inability to establish positive feedback urination reflex

Active Publication Date: 2015-01-07
BEIJING WANSHENG RENHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the anti-deformation ability of the catheter wall, the urine cannot stimulate the receptors of the urethra when the urine is drained, so the positive feedback voiding reflex cannot be established

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: With reference to the accompanying drawings, the positive feedback catheter includes a urinary catheter main body (3), which is hollow as a urine drainage cavity (3-1), and the urine inlet (3-2) at the end of the urinary catheter main body (3) body. ) is communicated with the urine drainage cavity (3-1), and the urine drainage cavity (3-1) has an external opening, which is the urine outlet (3-8), and a fixed balloon (3-8) is provided on the outer wall of the inner end of the urinary catheter. 3), the space inside the balloon communicates with the injection cavity (3-7) through a balloon opening (3-4) and the balloon channel (3-5) connected thereto, and the external opening of the injection cavity (3-7) is closed A closing part (3-6) is closed, and a syringe is pierced through the closing part (3-6) to inject gas or liquid into the refraction cavity (3-7) to fill the fixed balloon (3-3) during use.

[0009] When the catheter body (3) is located in the ureth...

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Abstract

The invention provides a positive feedback catheter. At least one flexible area is arranged on the catheter wall of a catheter body positioned in the urethra. As the flexible area can be made of material with good heat-conducting property or is thin-walled, the urine temperature is transferred more quickly to the urethral mucosa in contact with the flexible area during the urination relative to other parts, so that the stimulation to the sensor is increased, the approximately physiological micturition reflex is favorably completed, and a good foundation is created for quick recovery of the urination function after the removal of the catheter.

Description

technical field [0001] The invention relates to a positive feedback urinary catheter, which belongs to the technical field of medical equipment production. Background technique [0002] Inserting a catheter into the bladder for urine drainage is one of the most commonly used treatment and nursing methods in clinical medicine. To ensure a smooth urine drainage channel in the center of the long pipeline, the tube wall must have a certain strength and corresponding resistance. Deformability, when urinating, the urine flows out of the urinary catheter from the urine drainage channel, without causing the pipeline to collapse, but at the same time loses the physiological function of the normal urethra during urination, that is, the positive feedback function, the bladder contracts during normal urination, and the urine Entering the urethra, stimulating the receptors on the urethra, especially the posterior urethra, the penetrating impulse of the receptors enters the spinal cord, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/10
Inventor 董东生
Owner BEIJING WANSHENG RENHE TECH
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