Disposable cystoscope sheath

Abstract

The invention relates to a disposable cystoscope sheath used with endoscope, which comprises an endoscope channel and an operating channel which are arranged inside the cystoscope sheath, wherein the endoscope channel is connected in parallel with the operating channel with inner cavities thereof communicated with each other, the endoscope channel made of medical hard plastic has the cross section in an elliptical shape with a gap, and the axial edge of the gap is connected with the axial edge of the gap of the section of the operating channel which is made of soft silica gel material. The disposable cystoscope sheath has the advantage that: since the elliptical endoscope channel reduces the area of an insertion opening, relatively small damage is caused to urethra so that patient feels comfortable; certain elasticity resulted from the soft silica gel material of the operating channel relatively increases the space of the operating channel, thereby facilitating operation; the disposable cystoscope sheath has the characteristics of low manufacturing cost, disposability, good cleanness and avoiding cross infection among patients, and can also serve as an outer sheath for ureteroscope and simultaneously monitor images of bladder and ureter, thus operation time is saved and operations are safer.

Description

technical field [0001] The invention relates to a minimally invasive surgical equipment, in particular to a disposable cystoscope sheath matched with an endoscope. Background technique [0002] Cystoscopy is the most basic endoscopic technique in urology, with a history of more than 100 years and a wide range of applications. It is to put the endoscope body into the endoscope channel of the cystoscope sheath, insert the instrument through the working channel of the cystoscope sheath, and insert the cystoscope into the bladder through the patient's urethra for exploration and treatment in the bladder . [0003] At present, the cystoscope sheath is made of metal and is round in shape. When it enters the urethra, it will cause some damage to the urethral mucosa. Moreover, because the purchase of cystoscopes is relatively expensive, a cystoscope in a general hospital will take 5 to 10 years to use. Long-term use will lead to massive accumulation of scale and rust spots in the ...

AI Technical Summary

Problems solved by technology

[0003] At present, the cystoscope sheath is made of metal and is round in shape. When it enters the urethra, it will cause certain damage to the urethral mucosa. Moreover, because the purchase of cystoscopes is relatively expensive, it takes 5 to 10 years for a cystoscope in a general hospital.

Long-term use will lead to massive accumulation of scale and rust spots in the inner cavity of the cystoscope and the outer sheath of the cystoscope, which will aggravate the damage to the urethral mucosa and cross-infection

Although the instrument should be sterilized between two cystoscopic examinations, due to the wide application of cystoscopy and the large amount of operation, it is often caused by incomplete disinfection, resulting in cross-infection between patients

At the same time, for patients who need ureteroscopic surgery, it is also necessary to put the cystoscope first to find the ureteral opening, put in a guide wire, then withdraw the cystoscope, and the ureteroscope enters the bladder along the guide wire and then enters the ureter. Surgery, aggravating damage to the urethra

Images