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Catheter with form and position display function, and display method thereof

A catheter and shape technology, which is applied in the field of catheters with shape and position display, can solve the problems such as the inability to accurately display the abutment direction between the catheter tip and the tissue, and the inability of electrodes to accurately display the catheter bending shape in real time, and achieve good results. , the structure is simple, the effect of improving quality and efficiency

Active Publication Date: 2020-04-14
SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device with shape and position display for the problems in the prior art that the electrodes cannot accurately display the bending shape of the catheter in real time, and cannot accurately display the direction of abutment between the tip of the catheter and the tissue. Catheters and methods thereof

Method used

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  • Catheter with form and position display function, and display method thereof
  • Catheter with form and position display function, and display method thereof
  • Catheter with form and position display function, and display method thereof

Examples

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Effect test

Embodiment 1

[0062] Such as Figure 1-8 As shown, a catheter with shape and position display according to the present invention includes a catheter head end 1 and an adjustable bend pipe body 2 connected thereto; the catheter head end 1 is a hard end with several An electrode, the adjustable bend tube body 2 is a braided tube body, with a braided mesh of stainless steel wire inside to increase the rigidity and torque transmission of the tube body, and a high-elastic polyurethane outer layer tube is used outside the braided tube body to increase the Body flexibility.

[0063] Such as figure 1 , 2 As shown in and 7, the catheter head end 1 is provided with a magnetic positioning sensor assembly 3 and a pressure sensor 7, and the outer wall of the catheter head end 1 is provided with a zero point position 6, and the zero point position 6 is located inside the bending direction of the catheter , the zero point position 6 is used to indicate and prompt the bending direction of the catheter; ...

Embodiment 2

[0072] A catheter with shape and position display according to the present invention differs from Embodiment 1 in that in this embodiment, as Figure 5 As shown, the side end of the third magnetic positioning sensor T2 is connected to the side end of the first magnetic positioning sensor T1, and there is an included angle between the third magnetic positioning sensor T2 and the first magnetic positioning sensor T1, namely is the included angle A; this arrangement can greatly shorten the length of the magnetic positioning sensor assembly 3 , but the outer diameter will increase.

Embodiment 3

[0074] Such as Figure 1-8 As shown, a method for displaying a catheter with shape and position display according to the present invention, using the catheter as described in Embodiment 1 or Embodiment 2, the method includes:

[0075] A. Establish catheter shape and location database;

[0076] Since the second magnetic positioning sensor T3 is located at the end of the adjustable bend pipe body 2, the spatial coordinates of the second magnetic positioning sensor T3 are relatively unchanged, and the spatial coordinates of the magnetic positioning sensor assembly 3 vary with each other. The straightness of the adjustable bend pipe body 2 varies;

[0077] Under the action of a magnetic field, the magnetic positioning sensor assembly 3 and the second magnetic positioning sensor T3 can output respective spatial coordinates;

[0078]The length S of the adjustable bend pipe body 2 is a known quantity, and the length L of the catheter head end 1 is a known quantity, and the value of...

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Abstract

The invention discloses a catheter with a form and position display function, and a display method thereof. The catheter comprises a catheter head end and an adjustable bent section catheter body connected with the catheter head end, a magnetic positioning sensor assembly and a pressure sensor are arranged in the head end of the catheter, the magnetic positioning sensor assembly comprises a firstmagnetic positioning sensor, a second magnetic positioning sensor is arranged at the end part of the other end, opposite to the catheter head end, of the adjustable bent section catheter body, the second magnetic positioning sensor and the first magnetic positioning sensor are coaxially arranged, the axial direction of the magnetic positioning sensors is parallel to the axial direction of the catheter body, the pressure sensor comprises an elastic body and a strain sensor assembly, the elastic body is used for deformation after the catheter head end abuts against tissue and resetting after separation, the strain sensor assembly is used for detecting the deformation of the elastic body and outputting a corresponding pressure value, and a zero position is arranged on the outer wall of the catheter head end, is located on the inner side of the catheter in the bending direction and is used for indicating and prompting the bending direction of the catheter. The catheter makes a surgical operation visualized, and the surgical quality and efficiency can be improved.

Description

technical field [0001] The invention relates to a medical electrophysiological catheter, in particular to a catheter with shape and position display and a method thereof. Background technique [0002] In clinical operations, the morphological position of the adjustable bend of the electrophysiological catheter and the abutment direction of the catheter tip and the tissue are of great help to improve the safety, effectiveness and efficiency of the operation. However, due to technical problems, the electrophysiological catheter can The shape and position of the bending section in the heart is currently difficult to accurately express. The SmartTouch catheter head produced by Johnson & Johnson is equipped with two electrodes on the adjustable bending section to display the shape of the bending section. However, due to the stability of the electric field, there is a display Inaccurate question. At the same time, when the bending shape and abutment direction of the catheter cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/01A61M25/00A61B34/20
CPCA61M25/0127A61M25/0054A61B34/20A61M2025/0002A61B2034/2051
Inventor 朱晓林邹波
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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