Medical catheter assembly with deflection pull ring and distal tip interlock
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorDaniel J. Potter
Life of this patent
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Abstract
A catheter assembly comprises a deflectable catheter shaft comprising a distal end and a lumen extending therethrough. The catheter assembly further comprises least one pull wire comprising a distal portion comprising a side and a distal end, wherein the side comprises a first side portion and a second side portion. The catheter assembly further comprises a distal pull assembly operatively coupled to the at least one pull wire. The distal pull assembly comprises a longitudinal axis, a first surface, and a second surface. The first side portion of the at least one pull wire is adjacent to the first surface of the distal pull assembly, and the second side portion of the at least one pull wire is adjacent to the second surface of the distal pull assembly.
Claims17
A catheter assembly comprising:
- a deflectable catheter shaft comprising a distal end and a lumen extending therethrough;
- at least one pull wire comprising a distal portion comprising:
- a side, wherein the side comprises a first side portion and a second side portion;
- and
- a distal end;
- and
- a distal pull assembly operatively coupled to the at least one pull wire, the distal pull assembly comprising:
- a longitudinal axis;
- a first surface;
- and
- a second surface, wherein the first side portion of the at least one pull wire is adjacent to the first surface of the distal pull assembly and wherein the second side portion of the at least one pull wire is adjacent to the second surface of the distal pull assembly.
A catheter assembly comprising:
- a deflectable catheter shaft comprising a distal end and a lumen extending therethrough;
- at least one pull wire comprising a distal portion comprising:
- a side, wherein the side comprises a first side portion and a second side portion;
- and
- a distal end;
- and
- a distal pull assembly comprising:
- a longitudinal axis;
- a first surface comprising a radially facing surface;
- and
- a second surface comprising at least in part a substantially distally facing surface, wherein the first side portion of the at least one pull wire is adjacent to the first surface of the distal pull assembly and wherein the second side portion of the at least one pull wire is adjacent to the second surface of the distal pull assembly,
- wherein the at least one pull wire extends through the catheter shaft along the longitudinal axis of the distal pull assembly toward the distal end and then extends at least in part in a direction that is non-parallel to the longitudinal axis of the distal pull assembly,
- wherein at least a portion of the at least one pull wire extends distal of the second surface of the distal pull assembly, and
- wherein the at least one pull wire and the distal pull assembly are configured such that pulling of the at least one pull wire directly imparts force to the distal pull assembly to bend the catheter shaft.
Dependencies are inferred from the claim text.