Visible rigid ureteronephroscope

Abstract

The invention relates to the technical field of medical equipment, in particular to a visual rigid ureteronephroscope which comprises a guide sheath, a guide support and a nephroscope body, the guidesupport is inserted into the guide sheath, the nephroscope body is inserted into the guide support, the guide sheath is connected with the guide support through a clamping hook type structure, and theguide support is connected with the nephroscope body through a clamping hook type structure, and the guide sheath comprises a convolution cavity suction head main body and a guide sheath; the nephroscope comprises a nephroscope tube and a nephroscope body which are fixedly connected, the guide support comprises a guide tube and a conical cavity which are integrally formed, a pressure relief groove is formed in the guide tube, the pressure relief groove is matched with the pressure monitoring hole of the guide sheath, and a perfusion channel and an instrument channel of the nephroscope do notinterfere with a suction channel and a pressure detection connector of the guide sheath. The visual rigid ureteronephroscope has the advantages of reasonable design, clear view, safety, reliability, capability of monitoring intracavity pressure in real time and intelligent lithotripsy and lithotripsy; and the nephroscope, the guide support and the guide sheath are reasonable in design, matched with one another and convenient to operate and use, the intracavitary calculus removing technology is innovated, and the safety rate and calculus removing efficiency of an operation are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a visible rigid uretero-nephroscope. Background technique [0002] In urological surgery, the removal of kidney stones requires interventional therapy. Ureteronephroscope is a medical device used for diagnosis and treatment of renal pelvis and ureteral lesions. It enters the ureter, renal pelvis through the urethra and bladder to complete the inspection and For surgical operations, the existing uretero-renoscope is composed of an optical imaging lighting system, an integral mirror body containing water injection and operation channels. There are the following disadvantages: the insertion of uretero-nephroscope is inconvenient, repeated access to and from the channel increases the operation, increases the operation time and increases the operation blind time, thereby increasing the operation risk and reducing the operation efficiency; The ureter is thin, long and has ma...

AI Technical Summary

Problems solved by technology

There are the following disadvantages: the insertion of uretero-nephroscope is inconvenient, repeated access to and from the channel increases the operation, increases the operation time and increases the operation blind time, thereby increasing the operation risk and reducing the operation efficiency; The ureter is thin, long and has many bends, which requires the uretero-nephroscope to be visible during the insertion process and improve the mobility and flexibility of the uretero-nephroscope

On the other hand, the pressure sensor of the introducer sheath is fixed at the end of the sheath tube, and the signal line connected to the pressure sensor is fixed in the signal channel on the inner side of the sheath tube, but in practical applications, due to the small diameter of the sheath tube, it cannot Avoid the sensor from falling out of the cavity due to accidental factors during the operation, resulting in surgical risks; and the suction line is installed on the side of the perfusion joint, connected with the perfusion channel inside the perfusion joint, and there is a joint between the perfusion joint and the side wall of the sheath tube. The perfusion pressure sensing channel is connected with a pressure detection joint on the perfusion pressure sensing channel on the side of the perfusion joint. The entire channel inside the perfusion joint is perfused with the same inner diameter as the ureteral sheath, so it is easy to block stones at the mouth of the suction tube, and there is a risk of blockage of a single pressure coupling hole, which will make the intracavitary pressure measurement inaccurate and cause surgical risks

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