US 6,945,956 B2Granted

Steerable catheter

AssigneeMedtronic, Inc.

InventorsSteven L. Waldhauser, James R. Skarda, Jeffrey B. Geske, Gregory P. Shipe, Eduard T. Teisanu

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Abstract

A steerable catheter and methods of fabrication including a catheter body formed of a continuous wire braid formed of wires braided over a delivery lumen liner and a pull wire lumen liner distal to a pull wire jacket port, braided around the pull wire jacket port to form a braid port, and over at least a portion of the delivery lumen liner proximal to the pull wire jacket port. A pull wire extends from a pull wire proximal end through the pull wire lumen port and through the pull wire lumen to a pull wire distal end. A band is attached to the pull wire distal end and fitted over a distal segment of the wire braid proximal to the catheter body distal end to fix the pull wire distal end to the catheter body and restrain the wire distal end from flaring away from the delivery lumen liner.

Claims14

Dependent claims

A steerable catheter comprising a catheter hub and an elongated catheter body having a catheter body sidewall extending between a catheter body proximal end and a catheter body distal end, the catheter body further comprising:

p1 a delivery lumen liner having a delivery lumen extending between a delivery lumen entry port and a delivery lumen exit port at the catheter body distal end;
a pull wire lumen liner having a pull wire lumen extending between a pull wire jacket port through the sidewall of the catheter body and a pull wire lumen distal end;
a pull wire extend big from a pull wire proximal end through the pull wire jacket port and through the pull wire lumen to a pull wire distal end fixed to the catheter body at the pull wire lumen distal end;
a continuous wire braid formed of wires braided over the delivery lumen liner and the pull wire lumen liner distal to the pull wire jacket port, braided around the pull wire jacket port to form a braid port, and braided over at least a portion of the delivery lumen liner proximal to the pull wire jacket port;
and
a polymeric sheath encapsulating the wire braid around the delivery lumen liner and the pull wire lumen liner.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/328,329Filed 23 Dec 2002
Published: US 2004/0122360 A124 Jun 2004
Granted: 20 Sep 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61M 25/0012
Making of catheters or other medical or surgical tubes: with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
A61M 25/005
Characterised by structural features: with embedded materials for reinforcement, e.g. wires, coils, braids
A61M 25/0147
Tip steering devices: with movable mechanical means, e.g. pull wires
A61M 25/0029
Multi-lumen catheters with stationary elements: characterized by features relating to least one lumen located at the middle part of the catheter,…