Guiding device for improving pressure measurement precision and dilator

By incorporating a guiding device with a pressure measuring lumen and pressure sensor within the pressure measuring sheath, combined with a dilator and integrated operation buttons, the problems of pressure measuring accuracy and ease of operation of existing ureteral pressure measuring sheaths are solved, achieving more efficient and safer intrarenal pelvic pressure control.

CN223667925UActive Publication Date: 2025-12-16ZHEJIANG YIGAO MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202421512994.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-12-16
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

Existing ureteral manometry sheaths are insufficient in terms of pressure measurement accuracy and ease of operation, making it difficult to control intrarenal pelvic pressure in real time and accurately, which increases the risk of infection during surgery and increases the complexity of the operation.

Method used

A guiding device was designed, including a pressure measuring sheath and an expander. The pressure measuring sheath contains a pressure measuring cavity and a pressure sensor. The expander is used to prevent foreign objects from entering the pressure measuring cavity. The handle integrates operation buttons and a PCB board, enabling convenient control of infusion and suction, and improving pressure measurement accuracy and operation efficiency.

Benefits of technology

This improved the pressure measurement accuracy of the pressure measuring sheath, simplified the operation process, reduced the risk of infection, and improved the safety and efficiency of the surgery.

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Abstract

The utility model provides a guiding device and dilator for improving pressure measurement accuracy, the guiding device comprises a pressure measurement sheath, the pressure measurement sheath comprises a handle and a sheath tube, the size and shape of the sheath tube are suitable for entering a target area in a body through a body lumen, the sheath tube longitudinally extends from a near end to a far end, the sheath tube defines a first lumen suitable for entering of an external instrument, and the first lumen is communicated with the handle. A pressure measuring tube cavity longitudinally extending from the near end to the far end is formed in the tube wall of the sheath tube, a pressure measuring opening used for sensing the pressure of liquid in the body is formed in the far side of the pressure measuring tube cavity, and the dilator is arranged in the first tube cavity in a supporting and penetrating mode so that the pressure measuring sheath can enter the body conveniently. And the dilator is provided with a blocking part for limiting foreign matters from entering the pressure measuring tube cavity through the pressure measuring port.
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