Perfusion catheter

A technology for perfusion tubes and catheters, applied in the field of electrophysiological catheters, can solve the problems of difficult cold saline perfusion and uniform perfusion, and achieve the effects of lowering the temperature, little impact on the production process, and low cost

Active Publication Date: 2014-07-02
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] In the prior art, the perfusion method adopted by conventional perfusion catheters is not easy to achieve uniform perfusion, and when part of the surface is compressed, it is difficult to perfuse cold saline to the compressed part

Method used

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Examples

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Embodiment 2

[0025] Embodiment 2 of the present invention, a perfusion catheter, such as image 3 As shown, it includes a catheter body 8 , a ring electrode 9 , an electrode lead 7 , a temperature sensor 3 , a perfusion tube 5 and a cladding layer 1 . Inside the catheter tube body 8 there is a pulling wire 6 for controlling the bending of the catheter and a braided steel wire 4 for maintaining the shape of the catheter. Wherein, the electrode 2 is arranged on the catheter tube body 8, the coating layer 1 covers the ring electrode 9 and the tube body 8, and has an opening 10, and a part of the ring electrode 9 exposed in the opening 10 is in contact with the lesion tissue, and the electrode wire 7 and the The ring electrode 9 is connected. The inner side of the cladding layer 1 has a water outlet of the perfusion tube 5, and the position of the water outlet corresponds to the annular groove on the ring electrode 9, so that the perfusate can flow to the surface of the lesion tissue along th...

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PUM

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Abstract

The invention discloses a perfusion catheter which comprises a catheter body, an electrode, an electrode lead and a perfusion tube. The electrode is arranged on the catheter body, and the electrode is connected with the electrode lead. The perfusion catheter is characterized in that a wrapping layer is arranged outside the catheter body, the wrapping layer is provided with an opening used for exposing the electrode, a perfusion tube is arranged in the wrapping layer, a water outlet of the perfusion tube is formed in the position where the electrode is placed in the inner side of the wrapping layer, and a groove surrounding the catheter body is formed in the surface of the electrode. The perfusion catheter can solve the problem that perfusate at the local position is completely plugged and can not be ejected out under a compression state, can better lower the surface temperature of tissue and the electrode, and can achieve a better treatment effect.

Description

technical field [0001] The invention relates to an electrophysiological catheter, in particular to a perfusion catheter. Background technique [0002] Electrophysiology catheter tubing is usually made of flexible, biocompatible materials, such as plastics, including polyethylene, polyester, or polyamide. Electrophysiological catheters usually use the thermal effect of the electrodes to achieve the therapeutic function of the lesion tissue. Due to the complex physiological structure of the human body, it is necessary for the electrodes set on the catheter body to accurately touch the lesion tissue that needs to be treated, and to be able to communicate with the lesion tissue. The parts are closely fitted so that the thermal effect of the electrodes can be fully utilized for treatment. [0003] In the prior art, the perfusion method adopted by conventional perfusion catheters is not easy to achieve uniform perfusion, and when part of the surface is compressed, it is difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
Inventor 李楚武王建聪邹波
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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