Catheter with lubricated catheter body periphery and lubricated catheter body front end

Abstract

The invention provides a catheter with a lubricated catheter body periphery and a lubricated catheter body front end; the catheter comprises an outer sleeve, a liquid bag and an inner double-cavity tube; the inner double-cavity tube is embedded in the outer sleeve, and the liquid bag is fixedly arranged at the front end of an outer sleeve and communicated with the inner double-cavity tube throughan air hole; a urethral catheterization hole communicated with the inner double-cavity tube is formed in the front end of the outer sleeve, a plurality of overflow seams are formed in the middle of the outer sleeve, and a first lubricating liquid injection port is formed in the side wall of the tail end of the outer sleeve; the front end of one cavity is communicated with the urethral catheterization hole, the tail end is provided with a catheter outlet, a second lubricating liquid injection port communicated with the first lubricating liquid injection port and the catheter outlet is formed inthe side wall of the double-cavity tube in the part located between the first lubricating liquid injection port and the catheter outlet, an air hole communicated with the liquid bag is formed in thefront end of the other cavity, and the tail end of the other cavity is provided with a liquid bag liquid injection port. The catheter is simple in structure, convenient to operate and low in technicalrequirement on an operator, the frequency and pain of replacing the catheter of a patient with a long treatment period can be reduced, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a catheter for lubrication around the tube body and inside the front end of the tube body. Background technique [0002] With the improvement of people's health awareness, the use of urinary catheters in medical examination and treatment is increasing. Now medical catheters need to be coated with a layer of grease on the catheter body before being inserted into the urethra. , and then insert the patient into the urethra. During the catheter insertion process, as the catheter goes deeper into the urethra, the grease at the front end of the catheter will become less and less, and the friction between the catheter and the urethral wall will increase. As it gets worse, the patient's pain will also increase. When patients with a long treatment period need to use the catheter for a long time, effective lubrication protection can not be obtained between the catheter and the ure...

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