Degradable composite urethral stent

Abstract

The invention discloses a degradable composite urethral stent. The degradable composite urethral stent comprises a first stent, a second stent and support rods, wherein a frame is arranged on the first stent, the frame is connected with a support net, a sleeve net is arranged on the support net, first support columns are mounted on the frame, the first support columns are connected with second support columns, support strips are mounted on the second support columns, the first stent is arranged at the left side of the second stent, the second stent is connected with a third stent, a urethral catheterization head is arranged at the right side of the third stent, side long holes are formed in the urethral catheterization head, the support rods are arranged on the frame, and connecting stripsare arranged on the second stent. The degradable composite urethral stent has the advantages that the urethral catheterization head at the front end of the third stent is configured to be of a truncated cone shape, and the area of the front end of the truncated cone shape is reduced, thereby facilitating the insertion of the urethral stent during a surgery; and six groups of side long holes are formed in the urethral catheterization head, thereby facilitating discharge of urine and secretions.

Description

technical field [0001] The invention relates to the technical field of urethral stents, in particular to a degradable composite urethral stent. Background technique [0002] Male urethral disease is a common disease in medicine. It includes urethral stricture, which leads to the inability of patients to urinate normally. When treating urethral stricture, the current clinical method is to place a urethral stent in the urethral stricture to make the urethral stricture Or the blockage can be opened, and the cystoscope can be placed in the urethral stricture to expand the narrow and closed urethra. Most patients with dysuria can recover their urination function after placing a urethral stent. Generally, this stent is made of stainless steel. Or it is made of nickel-titanium alloy, which cannot be degraded by the human body, and requires a second operation to take it out, causing the patient to experience the pain of two operations, and the size of each person's urethra is differ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a degradable composite urethral stent to solve the problem that the material of the general urethral stent proposed in the above background technology cannot be degraded by the human body and requires a second operation to take it out and the urethral stent cannot be removed according to the urethra of different sizes of the patient. Change the size of the stent, and the urethral stent will be squeezed and depressed by the urethral sphincter

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