Ureteroscope sheath kit

Abstract

The invention discloses a ureteroscope sheath kit. The ureteroscope sheath kit comprises an outer sheath body, wherein an intra-sheath ureteroscope can be arranged in the outer sheath body in a combined entry and exit manner; a working channel is arranged in the intra-sheath ureteroscope; stone crushing equipment and / or flushing water can enter the working channel; and a cavity gap is formed between an outer wall of the intra-sheath ureteroscope and an inner wall of the outer sheath body to form a negative pressure suction channel.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a ureteroscope sheath set. 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 cannot be treated in time, it can also cause lesions in othe...

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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

[0009] The inventor found that the existing mirror sheath can only crush stones first, and then flush with water for negative pressure suction. This method is inconvenient to operate, takes a long time, and is not conducive to the suction of gravel; and the existing mirror sheath is harmful to kidney stones. (more than 2cm) stone debris after lithotripsy is sucked by negative pressure, the negative pressure suction tube is prone to clogging, and because the location of the broken stones is scattered, the broken stones cannot be sucked out quickly and effectively, requiring multi-stage surgery, which undoubtedly aggravates the patient's Physical burden and financial burden

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