Disposable three-cavity double-bag super-lubricity expansion catheter for prostates

Abstract

The invention belongs to the field of expansion catheters for prostates, and particularly relates to a disposable three-cavity double-bag super-lubricity expansion catheter for the prostates. An inner-bag water injection cavity, an outer-bag water injection cavity and a catheter water inlet cavity are formed in a catheter body (1). An inner-bag water injection joint (101), an outer-bag water injection joint (102) and a catheter water inlet joint (103) are arranged at the rear ends of the inner-bag water injection cavity, the outer-bag water injection cavity and the catheter water inlet cavitysequentially and respectively. A columnar water bag component (2) is arranged around a front catheter water inlet (104) of the catheter water inlet cavity. An inner bag (201) is arranged in an outer bag (202). An inner-bag water injection inlet (3) of the inner-bag water injection cavity is communicated with the inner bag (201). An outer-bag water injection inlet (4) of the outer-bag water injection cavity is communicated with the outer bag (202). The disposable three-cavity double-bag super-lubricity expansion catheter has the advantages that the expansion process is simple, catheter arrangement is facilitated, accurate positioning is achieved, prostatic membranes at the 12 o'clock position can be expanded, and hemostasis by compression can be achieved.

Description

technical field [0001] The invention belongs to the field of prostatic fissure expansion catheter, in particular to a disposable three-chamber double-vessel ultra-smooth prostatic fissure expansion catheter. Background technique [0002] Prostatic hyperplasia is one of the more common diseases in male elderly. With the increasing incidence of global aging population, the incidence of benign prostatic hyperplasia increases with age clinically, but clinical symptoms may not be manifested when hyperplasia occurs. In the early stage of benign prostatic hyperplasia, due to compensation, the clinical symptoms are not typical. With the aggravation of lower urinary tract obstruction symptoms, the clinical manifestations gradually become more obvious. The course of the disease progresses relatively slowly, and the onset time is difficult to determine. Clinically, the technique of transurethral balloon dilatation of the prostate is relatively mature for patients with benign prostatic ...

AI Technical Summary

Problems solved by technology

[0003] The structural design of the existing prostate dilatation catheter has the following problems: (1) the outer capsule is columnar and positioned in the bladder, and when it is punched inside, the internal sliding is not easy to control, resulting in inaccurate positioning, resulting in unstable expansion effect; (2) ) The water intake process is relatively cumbersome; (3) There is no positioning scale line, and the inward sliding is difficult to control; (4) The straight end of the catheter is easy to insert into the false channel; (5) The flushing chamber has no actual function; (6) The surgical operation cannot be directly seen Blind spread only

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