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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: 2016-05-04
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

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Embodiment Construction

[0031] The present invention is directed to a catheter 10 having a basket-shaped high-density electrode assembly 18 for large-area mapping with an integral distal tip 22 that provides ultra-thin imaging for acute lesion mapping. High-density microelectrode arrays. Such as 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 located at the proximal end of the catheter body; an intermediate flexure located distally of the catheter body 12 segment 14; and a basket-shaped electrode assembly 18 at the distal end of flexure segment 14. A basket-shaped electrode assembly (or "basket assembly") 18 has a plurality of spines 27 with proximal and distal ends surrounding an elongated expander 17 that provides longitudinal movement relative to the catheter for adjustment of the expanded configuration ( figure 1 ) and the collapsed configuration ( figure 2 ) between the shape of the basket component. Dist...

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PUM

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Abstract

The invention relates to a basket catheter with a microelectrode array distal tip. A catheter adapted for greater mapping resolution and location precision has a basket-shaped, high density electrode assembly for large-area mapping, and an integrated distal tip providing an array of ultra-high density microelectrodes for acute focal mapping. The basket-shaped electrode assembly 18 has a plurality of electrode-carrying spines and the distal tip has a nonmetallic, electrically insulating substrate body with indentations in which microelectrodes are positioned in a manner that the outer surface is generally flush with the outer surface of the substrate body to present a generally smooth, atraumatic distal tip profile.

Description

technical field [0001] The present invention relates to electrophysiology (EP) catheters, in particular 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-shaped electrode arrays are known and described, for example, in US Patent 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 a proximal end and a distal end, and includes a plurality of spines connected at the proximal and distal ends thereof. Each ridge includes at least one electrode. The basket assembly has an expanded arrangement in which the spines curve radially outward...

Claims

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Application Information

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IPC IPC(8): A61B5/042A61N1/05A61B18/12
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
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