Pressure stabilization type percutaneous nephroscope leading-in sheath

Abstract

The invention discloses accessory equipment for an organ operation, and particularly relates to a pressure stabilization type percutaneous nephroscope leading-in sheath, which is automatic in adjustment and long in service life. The pressure stabilization type percutaneous nephroscope leading-in sheath comprises a sheath body, a liquid flow loop system in the sheath body, an infusion joint on the sheath body and a control system, wherein the control system comprises a sensor for measuring liquid flow pressure; a pressure sensor connected with the input end of the control system is arranged in an infusion passage; a suction pipeline and the infusion joint form an integrated structure; a suction pipeline sealing ring is arranged on the infusion joint; a locking nut is arranged at an inlet of the infusion pipeline. The pressure stabilization type percutaneous nephroscope leading-in sheath has the beneficial effects that pressure in the pipeline can be measured at any time, and can be automatically adjusted; in addition, the pressure stabilization type percutaneous nephroscope leading-in sheath is simple in structure and easy to operate.

Description

technical field [0001] The invention relates to an accessory device for intracavity surgery of a human body, in particular to a percutaneous nephroscopic sheath with real-time monitoring of intracavity pressure and adsorption capacity. Background technique [0002] Percutaneous nephrolithotomy is to establish a channel from the skin to the kidney in the waist, insert the nephroscope into the kidney through this channel, and use laser, ultrasound and other lithotripsy tools to crush and remove the kidney stones. In the operation, in order to continuously improve the convenience of the operation and the comfort of the patient, the medical equipment used in the percutaneous nephrolithotomy has also been continuously improved. [0003] Percutaneous nephroscopic suction sheaths have been disclosed in the prior art, such as the percutaneous renal microstomy suction and lithoclearing sheath of the present invention (publication number: CN201256994Y, application number: 200820137434...

AI Technical Summary

Problems solved by technology

However, in practical applications, since the diameter of the sheath tube is very small, within about 4 mm, and the size of the pressure sensor is generally more than 2 mm, it is difficult to implement a way to directly measure the pressure by installing a sensor at the end of the sheath tube , although the patent defines a hard small sensor, it is still difficult to work under long-term pressure, after being washed by the liquid flow

[0007] Therefore, in the current technology, there is a lack of a percutaneous renal channel sheath that can monitor in real time, has a simple structure, has a long service life, and does not require the operator to be distracted by the equipment during the operation.

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