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Mapping catheter

A catheter and mapping technology, used in catheters, diagnostic recording/measurement, medical science, etc., can solve the problems of low mapping accuracy and inability to accurately locate ectopic excited lesions, so as to improve the mapping effect and improve modeling. Density and Effect, Effect of Increasing Density

Pending Publication Date: 2021-01-26
绍兴梅奥心磁医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of electrode shape and structure, the mapping accuracy is not high
The obtained mapping results cannot accurately locate ectopic activating lesions and directly guide radiofrequency ablation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0050] On the basis of the first embodiment, this embodiment further proposes a mapping catheter. On the basis of the first embodiment, it also includes a long sheath tube 19, and the long sheath tube 19 is slidably sleeved on the The catheter outer surface on the head end side, the introducer sheath 8 can partly or fully extend into the lumen of the long sheath tube 19 .

[0051] Specifically, such as Figure 5 , 6 As shown, the structure of the long sheath 19 used in conjunction with the mapping catheter in Embodiment 1 is proposed in this embodiment, wherein the long sheath 19 is slidably sleeved on the outer surface of the catheter on the side of the head end, and the guide The sheath 8 can partly or completely extend into the lumen of the long sheath tube 19. An optional embodiment is that the inner diameter of the introducer sheath 8 is greater than the outer diameter of the catheter tube body 4, and the inner diameter of the long sheath tube 19 is larger than the guide...

Embodiment 3

[0056] The third embodiment of the present invention proposes an implementation case of the mapping catheter in the second embodiment. In this embodiment, the mapping electrode 1 is a self-expanding flexible braided balloon electrode as an example for illustration, and the specific process is as follows.

[0057] The long sheath tube 19 will be sent into the center of the target heart chamber, the blood will be drawn back, the first perfusion tube 7 will be connected to the saline flushing tube, and the gas will be fully exhausted.

[0058] Use the wire interface 15 to connect the tail wire of the braided balloon catheter, connect the second perfusion tube 14 to the saline flushing tube joint, and fully exhaust the gas.

[0059] The introducer sheath 8 is advanced until its head touches the inner side of the braided balloon.

[0060] Soak the braided balloon and the head end of the introducer sheath 8 in heparinized saline to remove air bubbles.

[0061] The operator holds th...

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PUM

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Abstract

The invention discloses a mapping catheter which comprises a mapping electrode (1), a catheter body and an operation part, wherein the mapping electrode (1) is connected to the head end of the catheter, power is supplied to the mapping electrode through a bundling wire (2) connected with the mapping electrode (1), the operation part is connected to the tail end of the catheter and used for controlling and bending the head end of the catheter, and at least one depth mark is arranged on the catheter; the outer surface of a catheter body (4) of the catheter is sleeved with an introducer sheath (8) in a sliding mode, and the mapping electrode (1) can be contained in the introducer sheath (8) sliding to the head end. According to the embodiment of the invention, the structure of the catheter isimproved, the mapping electrode is stored by matching with the guide sheath, free movement in the target cardiac cavity is facilitated, and the mapping effect of the catheter is improved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a mapping catheter. Background technique [0002] There are two main types of existing contact-type very high-density mapping catheters: one is the octopus catheter of a certain company, and the other is the focusing catheter of a certain company. These two catheters can cooperate with the three-dimensional mapping system to complete the three-dimensional modeling of the endocardial structure and the extremely high-density mapping of the activation points. [0003] Due to the limitation of electrode shape and structure, the mapping accuracy is not high. The obtained mapping results cannot accurately locate ectopic activating lesions and directly guide radiofrequency ablation. Contents of the invention [0004] The embodiment of the present invention provides a mapping catheter, which improves the structure of the catheter and cooperates with the guide sheath to acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/287A61B18/12A61B18/14
CPCA61B5/6853A61B18/12A61B18/1482A61B18/1492A61B2018/00285A61B2018/00351A61B2018/00577A61B2018/00839
Inventor 卢才义陈越猛张新龙张煊浩林志嵩
Owner 绍兴梅奥心磁医疗科技有限公司