Percutaneous nephroscope set calculus removing lens with lockable calculus crushing end

Abstract

The invention relates to a percutaneous nephrolithotomy device with a sealable stone end, comprising an outer scope sheath and a scope body, the outer scope sheath is provided with a rotating sheath and an endoscope sheath, and the rotation sheath can be rotatably sleeved outside the endoscope sheath , and there will be no axial relative displacement between the rotating sheath and the endoscopic sheath; the endoscopic sheath away from the endoscope body is provided with a stone picking assembly, and an opening is provided on the side wall of the stone picking assembly, and the opening can be closed by a closing assembly Covering, an instrument channel tube is arranged in the cavity of the endoscope sheath, and the crushed stone component is arranged in the instrument channel tube, and its crushed stone end extends into the stone picking component. The percutaneous nephrolithotomy device of the present invention can place stones in a closed space for stone crushing, without leaving stone residues, without causing any damage to surrounding tissues, and the interference of stone debris on the field of view of the endoscope is small, and can significantly The efficiency and effect of the operation are improved, and the pain and burden of the patient are reduced.

Description

Technical field [0001] The present invention involves the field of medical device technology, and specifically involves a closure of a sturgeon -ended leather renal mirror device. Background technique [0002] Clinically, kidney casting stones, multiple stones, and kidney stones are kidney refractory stones. In vitro shocking stones (ESWL), such stones are very small, and there are many complications.Injury, kidney bleeding, even kidney resection.The emergence of dermatologist is the treatment of kidney stones, which has opened a new path for treatment, especially for such refractory stones, such as large cast stones, multiple stones, and kidney stones.The existing percutaneous nephramia can be matched with stones such as pneumatic ballistic, ultrasonic, laser and other crushed rocks.During the process, stones fragmented can easily enter the kidney and ureter, which leads to stones residue, causing kidney stones and ureteral stones.Trauma and pain.In addition, the gravel equipmen...

AI Technical Summary

Problems solved by technology

Existing percutaneous nephroscopes can cooperate with pneumatic ballistics, ultrasound, laser and other lithotripsy. However, due to the special structure of the kidney and the special environment in which the renal pelvis communicates with the ureter and calyces during the lithotripsy process, the stones in the renal pelvis will be broken during the lithotripsy process. During the process, stone fragments easily enter the calices and ureter, resulting in residual stones, causing calyceal stones and ureteral stones, and even stones enter the bladder along the ureter to cause bladder stones, which often require reoperation or follow-up treatment, increasing the patient’s trauma, pain

In addition, lithotripsy equipment and stone fragments can also cause certain damage to the kidney and ureter during lithotripsy. Stone debris can also interfere with the surgical field of view, affect the surgical effect, prolong the operation time, increase the risk of surgery, and increase the pain and burden of the patient.

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