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Basket catheter with microelectrode array distal tip

A technology of microelectrodes and catheters, applied in the field of EP catheters

Active Publication Date: 2021-12-07
BIOSENSE WEBSTER (ISRAEL) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because individual patient atria may vary in size and shape, it is desirable that the basket assembly be sufficiently flexible and maneuverable to conform to a particular atrium

Method used

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  • Basket catheter with microelectrode array distal tip
  • Basket catheter with microelectrode array distal tip
  • Basket catheter with microelectrode array distal tip

Examples

Experimental program
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Embodiment Construction

[0031] The present invention relates to a catheter 10 having a basket-shaped high-density electrode assembly 18 for large area mapping with an integrated distal tip 22 that provides ultra-high density for acute lesion mapping. High-density microelectrode arrays. like figure 1 As shown, the catheter 10 includes: an elongated catheter body 12 having a proximal end and a distal end; a control handle 16 at the proximal end of the catheter body; an intermediate flexure joint distal to the catheter body 12 segment 14; and a basket electrode assembly 18 at the distal end of the flexure segment 14. The basket electrode assembly (or "basket assembly") 18 has a plurality of ridges 27 with proximal and distal ends surrounding an elongated expander 17 that provides longitudinal movement relative to the catheter in order to adjust the expanded configuration ( figure 1 ) and the collapsed configuration ( figure 2 ) in the shape of the basket assembly. Mounted on the distal end of the b...

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Abstract

The present invention relates to a basket catheter having a microelectrode array distal tip. The present invention discloses a catheter adapted to achieve better mapping resolution and positional accuracy, the catheter has a basket-shaped, high-density electrode assembly for large-area mapping, and provides ultra- Integral distal tip for high-density microelectrode arrays. The basket-shaped electrode assembly 18 has a plurality of electrode-carrying ridges, and the distal tip has an indented, non-metallic, electrically insulating substrate body, wherein microelectrodes are positioned in such a way that the outer surface is in contact with the substrate body. The outer surface is generally flush to present a generally smooth atraumatic distal tip profile.

Description

technical field [0001] The present invention relates to electrophysiological (EP) catheters, in particular to EP catheters for mapping and / or ablation in the heart. Background technique [0002] Electrophysiology catheters are commonly used to map electrical activity in the heart. Various electrode designs are known for different purposes. In particular, catheters with basket electrode arrays are known and described, for example, in US Pat. Nos. 5,772,590, 6,748,255, and 6,973,340, the entire disclosures of which are incorporated herein by reference. [0003] Basket catheters typically have an elongated catheter body and a basket electrode assembly mounted at the distal end of the catheter body. The basket assembly has proximal and distal ends, and includes a plurality of ridges connected at its proximal and distal ends. Each ridge includes at least one electrode. The basket assembly has an expanded arrangement, wherein the ridges curve radially outward, and a collapsed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/318A61N1/05A61B18/12A61B90/00
CPCA61B5/6859A61B18/1492A61B2018/00267A61B2034/2051A61B2090/3954A61B5/6858A61B2018/00577A61B5/287A61B5/367A61M25/0147A61M25/09A61B5/6851A61B2017/00053A61B2018/00351A61B2018/00357A61B2018/1465A61B2018/1467A61M2025/0177
Inventor A.C.阿尔特曼A.戈瓦里C.T.比克勒R.O.赫特尔
Owner BIOSENSE WEBSTER (ISRAEL) LTD