Flexible tip catheter with extended fluid lumen
First Claim
1. A lumen extension member for a catheter having a catheter body and an elongate flexible electrode, wherein said catheter body includes a distal portion, said lumen extension member fixedly coupled to the catheter body distal portion and positioned within the elongate electrode, said lumen extension member comprising at least one opening extending therethrough, wherein said lumen extension member is flexible and is configured such that a flexibility of said elongate flexible electrode is not compromised by said lumen extension member during initial bending movement of the elongate flexible electrode from an at rest position.
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Accused Products
Abstract
A lumen extension member is provided for a catheter having a catheter body and an elongate electrode coupled to the catheter body. The elongate electrode defines an electrode lumen extending therethrough. The lumen extension member is positioned within the electrode lumen and is coupled to the catheter body. The lumen extension member includes a tubular member including a sidewall and at least one opening that extends through the sidewall.
141 Citations
21 Claims
- 1. A lumen extension member for a catheter having a catheter body and an elongate flexible electrode, wherein said catheter body includes a distal portion, said lumen extension member fixedly coupled to the catheter body distal portion and positioned within the elongate electrode, said lumen extension member comprising at least one opening extending therethrough, wherein said lumen extension member is flexible and is configured such that a flexibility of said elongate flexible electrode is not compromised by said lumen extension member during initial bending movement of the elongate flexible electrode from an at rest position.
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6. An ablation catheter comprising:
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a catheter body having a distal portion; an elongate electrode having an annular channel therein, said elongate electrode coupled to said distal portion of said catheter body; and a lumen extension member comprising a projecting portion projecting into said annular channel, said lumen extension member fixedly coupled to said catheter body distal portion and configured to flex, wherein said annular channel surrounds said lumen extension member projecting portion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A catheter comprising:
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a catheter body comprising a proximal portion and a distal portion; a tip assembly defining a tip lumen extending therethrough, said tip assembly coupled to the catheter body distal portion; a lumen extension member comprising a projecting portion and positioned at the catheter body distal portion, said lumen extension member defining a lumen; a proximal opening extending through said lumen extension member, the proximal opening in fluid communication with the lumen extension member lumen; and a distal opening extending through said lumen extension member, the distal opening in fluid communication with the lumen extension member lumen, wherein the lumen extension member projecting portion is positioned in the tip lumen and is spaced from the tip assembly when the tip assembly is in an at rest position such that an annular channel extends between the projecting portion and the tip assembly, wherein the annular channel comprises empty space surrounding the projecting portion, said lumen extension member fixedly coupled to the distal portion of the catheter body and configured to flex. - View Dependent Claims (19, 20)
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21. A catheter comprising:
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a shaft assembly comprising a proximal portion and a distal portion, the distal portion sized and configured for insertion in a patient; a tip assembly connected to the distal portion; an irrigation member comprising a sidewall, said irrigation member fixedly connected to the distal portion, wherein the irrigation member extends at least partially within the tip assembly and defines a lumen, and wherein the irrigation member is flexible; a proximal opening extending through the sidewall and having a first diameter, said proximal opening in fluid communication with the lumen; and a distal opening extending through the sidewall and having a second diameter, said distal opening in fluid communication with the lumen, wherein the proximal opening is different in size than the distal opening.
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Specification