Combined-type flexible ureteroscope sheath part capable of conducting continuous lavaging and sucking

Abstract

The invention discloses a combined-type flexible ureteroscope sheath part capable of conducting continuous lavaging and sucking. The combined-type flexible ureteroscope sheath part solves the problemthat blood clots and broken calculi in the kidney cannot be effectively discharged in ureteroscopic lithotripsy. A continuous lavaging system formed by an inner sheath canal and an outer sheath body has the advantage of efficiently removing the calculi, the operation success rate for the first time is increased so that the ureteroscopic lithotripsy can process the renal calculi of 2 cm or above, and the operation indication is expanded. According to the technical scheme, the combined-type flexible ureteroscope sheath part comprises the outer sheath body, the inner sheath pipe is detachably andcombinedly arranged in the outer sheath body, and the working end of the inner sheath pipe stretches out of the working end of the outer sheath body for a certain length; a negative pressure suctionopening is formed in the non-working end of the outer sheath body; the outer sheath part and the inner sheath pipe form the continuous lavaging system of which the inner sheath pipe conducts continuous lavaging inwards and the outer sheath body conducts continuous negative pressure suction, and foreign matter in the ureteroscopic lithotripsy is taken out.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a combined flexible ureteroscope sheath set capable of continuous perfusion and suction. Background technique [0002] Renal calculi are caused by the abnormal accumulation of some crystalline substances (such as calcium, oxalic acid, uric acid, cystine, etc.) and organic matrix (such as matrix A, acidic mucopolysaccharide, etc.) in the kidney, and are common diseases of the urinary system , frequently-occurring disease, 90% contain calcium, and calcium oxalate stone is the most common among them. If kidney stones cannot be treated properly, it will easily lead to inflammation and infection. In severe cases, hydronephrosis, uremia and even cancer will occur. When kidney stones are formed, they are mostly located in the renal pelvis or calices, and can be discharged into the ureter and bladder. Almost all ureteral stones come from the kidney Therefore, if kidney stones ca...

AI Technical Summary

Problems solved by technology

[0006] 3. Traditional open surgical treatment; in this way, according to the condition of the patient’s kidney stones, the kidney is cut open to remove the stone or the kidney is partially resected / totally resected; this surgical method has a large trauma, a high rate of residual stones, and a slow postoperative recovery , may also cause a variety of complications

[0007] 4. Percutaneous nephrolithotomy; this method needs to puncture the skin from the waist to establish a channel, and directly crush the stones for kidney stones. It is currently the main method for treating stones larger than 2cm. This method has obvious progress compared with traditional open surgery , but this method still creates wounds in the human body, and the incidence of serious complications such as renal hemorrhage and septic shock is still high

And above-mentioned prior art all can't provide effective solution

Images