Instrument for measuring inner diameter of urinary tract of human body

By designing a measuring instrument for the internal diameter of the human urinary tract, and using a positioning bladder and rotating sleeve to calculate the length and width of the prostatic urethra, the problem of incompatible electrosurgical models has been solved, enabling precise measurement and safe surgery.

CN224251378UActive Publication Date: 2026-05-19FOSHAN GAOMING DISTRICT PEOPLES HOSPITAL
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Patent Information

Application Number
CN202520209087.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-05-19
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

In current prostate surgery, the use of electroresection endoscopes is hampered by physiological differences among different ethnic groups, leading to incompatibility between different ethnic groups. This can result in urethral stricture, making the procedure unusable or causing urethral damage. Existing measurement methods also suffer from large errors and insufficient equipment, increasing surgical risks and pain.

Method used

Design an instrument for measuring the internal diameter of the human urinary tract, including a measuring catheter and a rotating sleeve. Utilizing a positioning bladder, a rotating sleeve, and a displacement sensor, the positioning bladder is fixed inside the bladder by inflating and expanding it. Combined with the rotating sleeve and a digital display, the measurement values ​​are displayed in real time to calculate the length and width of the prostatic urethra.

Benefits of technology

It enables precise measurement of the urinary tract diameter, reduces urethral dilation pain, lowers surgical complications, improves surgical safety and patient recovery speed, and reduces equipment costs.

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Abstract

The utility model relates to the technical field of surgical instruments, in particular to a human body urinary tract inner diameter measuring instrument which comprises a measuring catheter and a rotating sleeve, the measuring catheter is of a hollow tube body structure, and one end of the measuring catheter is provided with a positioning bag cavity used for being fixed in a bladder. An air hole is formed in the position, located in the positioning bag cavity, of the measuring catheter, and the air hole is communicated with the positioning bag cavity and the measuring catheter; the rotating sleeve is arranged on the outer side surface of the measuring catheter in a sleeving mode, and a displacement sensor is arranged at the end, close to the positioning bag cavity, of the rotating sleeve. And a rotating sleeve is arranged at the other end of the rotating casing pipe, and the rotating sleeve is rotationally connected with the rotating casing pipe. The novel resectoscope effectively solves the problems that the existing resectoscope cannot adapt to differences of different races, so that the existing resectoscope cannot be used due to urethrostenosis in domestic operations or the urethra is easily damaged when the existing resectoscope is used, and the like.
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