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US 2024/0173070 A1Published application
Catheter with tapered support member for variable arcuate distal assembly
AssigneeBiosense Webster (Israel) Ltd.
InventorsThomas V. SELKEE, Jose L. Jimenez
Life of this patent
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Abstract
A catheter with a variable circular loop responsive to a contraction wire for coiling is supported by a member having a tapered distal section that transitions from a circular cross-section to a generally rectangular cross-section while maintaining a uniform cross-sectional area along the entire tapered length for improved coiling characteristics. A radially constrictive sleeve prevents separation of the contraction wire from the support member to minimize misshaping of the loop during contraction.
Claims20
A catheter, comprising:
- a catheter body;
- an intermediate section disposed distal to the catheter body;
- a distal assembly disposed distal to the intermediate section;
- a connector that connects the intermediate section to the distal assembly;
- and
- an elongated support member having a 3-D arcuate configuration and including
- a proximal generally rectangular portion disposed at least partially in the connector, the proximal generally rectangular portion comprising a first flat side having a first height and a first cross-sectional area,
- an intermediate generally rectangular portion disposed in the distal assembly distal to the proximal generally rectangular portion, the intermediate generally rectangular portion comprising a second flat side having a second height that is greater than the first height and second cross-sectional area that is about equal to the first cross-sectional area, and
- a distal generally rectangular portion disposed in the distal assembly distal of the intermediate generally rectangular portion, the distal generally rectangular portion comprising a third flat side having a third height that is greater than the second height and a third cross-sectional area that is about equal to the first cross-sectional area.
6 more elements
Dependencies are inferred from the claim text.