Contact limiting type double-saccule three-cavity catheter

Abstract

The invention relates to a contact limiting type double-saccule three-cavity catheter, and belongs to the technical field of medical assisting instruments. The three-cavity catheter is characterized in that a tube body is made of polymer blend; the outer walls of the two saccules of the catheter become thinner and thinner from the pointed end to the tail end of the three-cavity catheter; and the two saccules are symmetrically arranged on two sides of the tube body and between the pointed end and a drain tube cavity hole. The catheter is used according to the method that water injection or gas injection can be carried out as long as urine enters into the catheter; the two saccules of the catheter, which are arranged behind a bladder, tilt to the tail end in a water injection or gas injection state; the space formed between the saccule and the bottom of a bladder wall can sufficiently accommodate a vesical trigone; the catheter can be fixed in the bladder continuously without pressing the vesical trigone and ureter ports; a drain tube cavity drainage hole is adjacent to the ureter ports, so as to evacuate urine promptly and radically; and the pointed end of the catheter, a flushing pipe cavity outlet hole, a flushing pipe cavity, the two saccules, feed-through saccule water injection or gas injection tube cavities, the drain tube cavity drainage hole, a drain tube cavity, an anti-reflow valve and an excretion cavity tapered interface are connected to form an integral piece through the tube body.

Description

technical field [0001] The invention relates to a limited-contact double-balloon three-chamber urinary catheter, which belongs to the technical field of medical auxiliary equipment. Background technique [0002] In the field of medicine, internal medicine, surgery, obstetrics and gynecology, orthopedic diseases and urological diseases require catheterization and indwelling catheterization. A urinary catheter is a commonly used medical aid that is inserted into the bladder through the diseased urethra to guide the flow of urine. After the catheter is inserted into the bladder, there is a balloon near the head of the catheter to keep the catheter fixed in the bladder and not easy to come out. The drainage part of the catheter is connected to a urine bag to collect urine. Common problems of indwelling catheter include urinary tract infection, poor drainage, difficult extubation, bladder spasm or contracture, etc., but the most common complication is urinary tract infection. A...

AI Technical Summary

Problems solved by technology

[0003] There is a distance of 3-5cm between the drainage hole of the existing balloon three-chamber urinary catheter and the bottom of the bladder, and there is a balloon in between, and some urine continues to remain in the bottom of the bladder; the urine in the bladder is generally sterile, However, urine is also a suitable environment for bacteria, and it is easy to breed bacteria; when the urine cannot be completely emptied, the urine remains at the bottom of the bladder, allowing bacteria to form, and it is prone to inflammation; Contact with residual urine will easily deposit calculus salt at the end of the urinary catheter to form stones; the balloon will be round after being filled with water or inflated, and the wall of the airbag will continue to stimulate and rub against the trigone of the bladder, causing inflammation, and the patient will experience frequent urination, urgency, and lower abdomen Distension and discomfort; urinary leakage caused by urethral relaxation; elderly women, intracranial lesions, and paraplegic patients with pelvic floor muscles and urethral sphincter relaxation, resulting in urinary leakage; in addition, long-term indwelling catheters make the bladder empty for a long time, and the bladder detrusor Disuse atrophy, leading to bladder contracture; the traditional method of using a urinary catheter requires about 3cm of insertion after seeing urine before injecting water or air

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