Catheter capable of adjusting hole size of head end

Abstract

The present invention discloses a catheter capable of adjusting hole size of a head end. The catheter comprises a straight catheter, three sliding guide wires are disposed in a side wall of the straight catheter with an equal interval, front ends of the guide wires are connected with the head end of the catheter, and the rear segment of the catheter is provided with an adjusting switch capable of adjusting the guide wires to extend and retract. The head end hole can be slightly lessened when the catheter is inserted, and the hole can be largened or closed according to the need after the catheter is indwelled. A hole size adjusting function is added to a traditional catheter, the hole is largened to facilitate drainage, and the catheter is prevented from being blocked by blood clots or tissue blocks; and the traditional fact the catheter is closed by external clamp is replaced by closing the head end hole, so that retrograde infection of the catheter can be prevented. The catheter is simple in structure, convenient to manufacture and easy to use.

Description

technical field [0001] The invention belongs to the technical field of clinical medicine and medical equipment, and relates to a catheter with an adjustable hole size at the head end. Background technique [0002] In recent years, the incidence of diseases such as benign prostatic hyperplasia and tumors, bladder tumors, and urinary stones has remained high, and has a tendency to increase year by year. These diseases require routine indwelling catheters after surgery, and bladder irrigation if necessary. However, because the head of the traditional catheters only has two small side holes, it is difficult to meet the various conditions of different patients, so there are often Blood clots or tissue blocks, etc. lead to blockage of the urinary catheter, and severe cases will lead to a second operation, which not only causes great pain to the patient, but also brings a lot of trouble to the medical staff. In addition, the traditional indwelling catheter is clamped at the place ...

AI Technical Summary

Problems solved by technology

These diseases require routine indwelling urinary catheters after surgery, and bladder irrigation if necessary. However, because the head of the traditional urinary catheters only has two small side holes, it is difficult to meet the various conditions of different patients, so there are often Blood clots or tissue blocks lead to blockage of the urinary catheter, and severe cases may lead to a second operation, which not only causes great pain to the patient, but also brings a lot of trouble to the medical staff

In addition, the traditional indwelling catheter is clamped at the urine bag outside the body, which is easy to cause retrograde urinary tract infection through urine

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