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Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter

A sensing device and pressure technology, applied in catheters, sensors, medical science, etc., can solve the problems of lack of accuracy of non-axial loads, lack of accuracy, restricting catheters, etc., and achieve simple structure, less interference, and high The effect of accuracy

Active Publication Date: 2015-02-25
SHANGHAI MICROPORT EP MEDTECH CO LTD
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  • Abstract
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Problems solved by technology

This kind of sensor has certain limitations in application, such as being easily disturbed by the external magnetic field and distorting the results, resulting in insufficient accuracy. In addition, the use of magnetic field limits the realization of other functions of the catheter, such as the three-dimensional magnetic positioning system Wait
[0005] Another example is the Chinese patent CN102423269A, which uses a pressure-sensitive material as the matrix of the force sensor to sense the load at the distal end of the catheter, but this system can only accurately measure the axial load, but lacks accuracy for non-axial loads

Method used

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  • Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter
  • Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter
  • Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter

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Embodiment Construction

[0033] Exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0034] figure 1 is a schematic diagram of the basic structure of a pressure sensing device according to an embodiment of the present invention. Such as figure 1 As shown, the pressure sensing device 10 includes a cylinder 11 with a certain wall thickness, and a plurality of fiber grating sensors 141 extending from one end 12 of the cylinder 11 to the other end 13 in the ...

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Abstract

The invention provides a pressure sensor, a manufacturing method of the pressure sensor, a mold and a medical catheter and mainly aims to improve the performance of the medical catheter with the pressure sensor and to manufacture the pressure sensor at low cost. The pressure sensor applied to the medical catheter comprises a cylinder of certain wall thickness and fiber Bragg grating sensors provided in the cylinder; the fiber Bragg grating sensors extend from one end of the cylinder axially to the other end; the cylinder is made of flexible material.

Description

technical field [0001] The invention relates to a pressure sensing device, a manufacturing method thereof, a mold and a medical catheter. Background technique [0002] In recent years, interventional treatment of cardiac tissue lesions such as atrial fibrillation and tachycardia based on the catheter system has become possible. Through interventional catheters, the abnormal electrical signals of the heart tissue are mapped, and energy is applied for ablation to terminate or change useless electrical signals to achieve therapeutic effects. In general interventional electrode catheter surgery, the electrode catheter enters the heart or renal artery and other blood vessels and organ tissues through the femoral vein or other blood vessels. The handle at the proximal end of the catheter operates the entire catheter, so that the electrode at the distal end of the catheter reaches the position of the abnormal tissue for ablation. [0003] During ablation, the contact force betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/06A61B18/14A61N1/05
CPCA61B5/06A61B5/07A61B5/6852A61B18/14A61N1/056
Inventor 张清淳杨谦谦梁波王铮孙毅勇谭家宏曹先锋彭亚辉
Owner SHANGHAI MICROPORT EP MEDTECH CO LTD
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