Degradable hydrophilic pigtail catheter

Abstract

The invention discloses a degradable hydrophilic pigtail catheter which comprises a catheter body. The catheter body is a dual-J catheter or a single-J catheter, one end or two ends of the catheter are designed into a pigtail shape, and the catheter body is a catheter which is made of hydrophilic degradable materials. The degradable hydrophilic pigtail catheter is made of biological absorptive aliphatic polyester materials, can spontaneously decompose, and can be gradually decomposed into small molecules by actions of microorganisms, enzymes and the like and then discharged out of the body by metabolism. By means of the degradable hydrophilic pigtail catheter, secondary operation pulling is successfully avoided, patient's pain is relieved, and simultaneously, operation safety is improved.

Description

technical field [0001] The invention relates to a catheter, in particular to a degradable hydrophilic pigtail catheter. Background technique [0002] Pigtail catheter, named for its curled ends and each end resembling a pig's tail. It is widely used in urological surgery. It is suitable for upper urinary tract operations such as kidney stones, ureteral stones, hydronephrosis, kidney transplantation, benign tumors of the kidney and ureter, as well as the treatment process of lithotripsy and expansion of ureteral strictures. After it is implanted in the ureter, it can play an important role in draining urine and preventing ureteral stricture and adhesion blockage. Most of the pigtail catheters currently used in clinical practice are made of silicone rubber or polyurethane polymer materials. However, since these materials cannot be degraded and absorbed in the human body, the existing pigtail catheter products have some insurmountable defects in their application: [0003] (...

AI Technical Summary

Problems solved by technology

However, since these materials cannot be degraded and absorbed in the human body, the existing pigtail catheter products have some insurmountable defects in their application:

[0003] (1) It must be removed through an invasive operation, that is, through a cystoscope. Although this type of cystoscopic operation is not considered a major operation, the patient will suffer terribly. Lesions that lead to infection and edema, often requiring emergency treatment

[0004] (2) Due to various reasons, many patients will forget to extubate or delay extubation. When non-degradable stent tubes are left in the body for a long time to form urinary stones and cannot be removed through the cavity, they have to be removed by open surgery, which undoubtedly seriously increases the risk of extubation. Patient suffering and financial burden

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