Disposable single-channel reducing percutaneous kidney guide kit

Abstract

The invention discloses a disposable single-channel reducing percutaneous kidney guiding suite, and relates to the technical field of percutaneous nephroscope puncture channel sheaths, the disposable single-channel reducing percutaneous kidney guiding suite comprises a guiding sheath, and is characterized in that the middle section of the guiding sheath is a reducing section, the diameter of the rear section of the guiding sheath is larger than that of the front section of the guiding sheath, and the diameter of the rear section of the guiding sheath is larger than that of the front section of the guiding sheath. A water outlet is formed in the end of the rear section of the guide sheath, the single J ureteral catheter comprises a variable-diameter catheter and a J-shaped catheter, the short-diameter end of the variable-diameter catheter is communicated with the J-shaped catheter, and a water inlet connector is arranged at the long-diameter end of the variable-diameter catheter in a communicated mode. According to the percutaneous nephroscope system, the percutaneous nephroscope operation with a smaller channel is met, meanwhile, low-pressure continuous water circulation of the renal pelvis in the operation is achieved, and therefore the problems that in the prior art, the diameter of the renal channel in the percutaneous nephroscope operation is large, and water cannot flow in and out continuously and circularly are solved.

Description

technical field [0001] The invention belongs to the technical field of percutaneous nephroscopic puncture channel sheaths, in particular to a disposable single-channel variable-diameter percutaneous kidney guide kit. Background technique [0002] Percutaneous nephroscopic surgery, with the improvement and perfection of X-ray, B-ultrasound, CT positioning and puncture positioning technology, and the improvement of lithotripsy equipment, the accuracy of puncture is getting higher and higher, and the surgical complications are getting fewer and fewer, so the more more and more widely. The development of vascular minimally invasive interventional surgery provides safety guarantee for percutaneous nephroscopic surgery, and most kidney stone operations are solved by percutaneous nephroscopic surgery. The proportion of open surgery is also decreasing. The scope of application of ultra-fine channel and micro-channel percutaneous nephroscopic surgery overlaps to a certain extent wi...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a disposable single-channel variable-diameter percutaneous renal guidance kit, which can be placed into the renal pelvis through a variable-diameter single-J ureteral catheter through a guide wire for continuous pulse-type water entry, and can also be used through a single-channel disposable The variable-diameter percutaneous renal guide sheath discharges the main channel hole and the instrument gap, which meets the needs of percutaneous renal surgery with smaller channels, and at the same time realizes intraoperative low pressure and continuous water circulation in the renal pelvis, thereby solving the problem of renal channels in percutaneous nephroscopic surgery proposed in the above-mentioned background technology The problem of large diameter and inability to continuously circulate water in and out

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