A labeled visual uretero-nephroscope negative pressure stone clearing manometry expansion sheath kit

Abstract

The invention discloses a visible ureterorenoscope negative-pressure stone-removing pressure-measuring expanding sheath assembly with marks. The visible ureterorenoscope negative-pressure stone-removing pressure-measuring expanding sheath assembly with the marks comprises a sheathing canal body, an expanding tube is selectively inserted into the sheathing canal body, a large-cavity channel and a small-cavity channel are formed in the sheathing canal body, the top of the sheathing canal body is provided with a sheathing canal connector, one side of the sheathing canal connector is provided with a pressure detection channel, and the small-cavity channel is communicated with the pressure detection channel. According to the visible ureterorenoscope negative-pressure stone-removing pressure-measuring expanding sheath assembly with the marks, the defects in the prior art can be overcome, and the operation safety and broken stone discharging smooth degree are improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a marked visible ureteral nephroscope negative pressure stone clearing manometry expansion sheath set. Background technique [0002] The ureteral dilatation sheath kit consists of two parts: the dilation tube and the dilation tube outer sheath. It is mainly used clinically to remove stones in the ureter, bladder, and kidney, and to establish a surgical channel for related surgical treatment. It is used to guide the ureter through the dilation tube outer sheath channel , laser optical fiber, stone extraction equipment or operating cables, etc., surgical steps: under medical imaging, insert a zebra guide wire through the external opening of the urethra, insert the expansion sheath kit to the stone extraction site under the guidance of the zebra guide wire, and pull out the expansion tube And the zebra guide wire, through the expansion sheath into the uretero-nephroscope, la...

AI Technical Summary

Problems solved by technology

However, during the water injection process, the pressure in the renal pelvis will exceed the safe pressure of the renal pelvis, increasing the risk of surgery

The ureteral expansion sheath kits in the prior art are generally single-lumen, and it is difficult to monitor the pressure of the renal pelvis through the expansion sheath during lithotripsy

In the expansion sheath set in the prior art, after crushing stones, the stones flow out of the body through liquid through natural pressure, the speed is relatively slow and the discharge is not complete

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