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Publication numberCA2554549 A1
Publication typeApplication
Application numberCA 2554549
PCT numberPCT/US2004/031431
Publication date7 Apr 2005
Filing date24 Sep 2004
Priority date24 Sep 2003
Also published asCA2554549C, EP1663372A1, EP1663372B1, US7588555, US8007463, US20050065467, US20090312699, WO2005030312A1
Publication numberCA 2554549, CA 2554549 A1, CA 2554549A1, CA-A1-2554549, CA2554549 A1, CA2554549A1, PCT/2004/31431, PCT/US/2004/031431, PCT/US/2004/31431, PCT/US/4/031431, PCT/US/4/31431, PCT/US2004/031431, PCT/US2004/31431, PCT/US2004031431, PCT/US200431431, PCT/US4/031431, PCT/US4/31431, PCT/US4031431, PCT/US431431
InventorsGreg Pudelko, Brian Fischer, Brian Honebrink
ApplicantEnpath Medical, Inc., Greg Pudelko, Brian Fischer, Brian Honebrink, Quan Emerteq Corp., Greatbatch Ltd.
Export CitationBiBTeX, EndNote, RefMan
External Links: CIPO, Espacenet
Bi-directional catheter assembly and method therefor
CA 2554549 A1
Abstract
A catheter assembly includes a catheter body and housing attached to the catheter body proximal end, where an actuator lumen extends through the catheter body. A flexible element extends from an actuator member within the housing through the actuator lumen to a deflectable distal end. A first tubular support is provided that is coupled to the flexible element. A second tubular support is coupled with the first tubular support and slidably coupled to the flexible element. In one option, the first tubular support and second tubular support constrain lateral movement of the flexible element when the catheter assembly is operated.
Description  available in
Claims(25)
1. A deflectable catheter assembly comprising:
a catheter body extending from a deflectable distal end to a proximal end and having an intermediate portion therebetween, wherein the catheter body includes an actuator lumen;
a housing coupled to the proximal end of the catheter body;
a flexible element extending from the housing through the actuator lumen, to the deflectable distal end, wherein the deflectable distal end is controllable by the flexible element; and a first tubular support coupled to the flexible element therein and coupled to an actuator mechanism disposed within the housing.
2. The deflectable catheter assembly of claim 1, further comprising:
a second tubular support telescopically coupled with the first tubular support.
3. The deflectable catheter assembly of claim 2, wherein a second tubular support inner surface is dimensioned and configured to snugly envelop and slidably couple with the flexible element.
4. The deflectable catheter assembly of any of the above-recited claims, wherein a first tubular support outer surface has a complementary perimeter dimensioned and configured to slidably couple with a surface defining the actuator lumen.
5. The deflectable catheter assembly of 4, wherein the surface defining the actuator lumen has a circular geometry.
6. The deflectable catheter assembly of any of claims 2 - 5, wherein a first tubular support intermediate surface and a second tubular support intermediate surface are dimensioned and configured to slidably couple the first tubular support with the second tubular support.
7. The deflectable catheter assembly of any of claims 1 - 6, wherein a first tubular support intermediate surface, a first tubular support outer surface, and a first tubular support inner surface define at least one first tubular support finger.
8. The deflectable catheter assembly of any of claims 2 - 7, wherein a second tubular support intermediate surface, a second tubular support outer surface, and a second tubular support inner surface define at least one second tubular support finger.
9. The deflectable catheter assembly of any of claims 2 - 8, wherein a second tubular support inner surface is dimensioned and configured to snugly envelop and slidably couple with a first tubular support outer surface.
10. The deflectable catheter assembly of any of claims 1 - 9, wherein a first tubular support outer surface is dimensioned and configured to slidably couple with a surface defining the actuator lumen.
11. The deflectable catheter assembly of any of claims 2 - 10, wherein the first tubular support and second tubular support have a substantially similar outer perimeter.
12. The deflectable catheter assembly of any of claims 2 - 11, wherein a surface defining the actuator lumen is dimensioned and configured to snugly couple with the first tubular support and second tubular support.
13. The deflectable catheter assembly of any of claims 2 - 12, wherein the second tubular support is coupled with a surface defining the actuator lumen.
14. The deflectable catheter assembly of any of claims 2 - 13, wherein an intermediate surface of the first tubular support and an intermediate surface of the second tubular support are dimensioned and configured to slidably couple the first tubular support with the second tubular support.
15. The deflectable catheter assembly of claim 14, wherein a second tubular support intermediate surface, the second tubular support outer surface, and the second tubular support inner surface define at least one second tubular support finger.
16. A deflectable catheter assembly comprising:
a catheter body extending from a deflectable distal end to a proximal end and having an intermediate portion therebetween, wherein the catheter body includes an actuator lumen;
a housing attached to the proximal end of the catheter body;
a flexible element extending from the housing through the actuator lumen, to the deflectable distal end, wherein the deflectable distal end is controllable by the flexible element; and means for constraining lateral movement of the flexible element within the actuator lumen.
17. The deflectable catheter assembly of claim 16, wherein the means for constraining lateral movement of the flexible element includes:
a first tubular support coupled to the flexible element and coupled to an actuator mechanism disposed within the housing; and a second tubular support coupled to a surface defining the actuator lumen and slidably coupled to the first tubular support.
18. The deflectable catheter assembly of claim 17, wherein a first tubular support outer surface has an outer perimeter dimensioned and configured to snugly couple with a surface defining the actuator lumen.
19. The deflectable catheter assembly of claim 17, wherein the first tubular support is slidably coupled with the surface defining the actuator lumen, and the second tubular support is slidably coupled with the first tubular support and slidably coupled with the flexible element.
20. A method comprising:
manipulating a deflectable catheter assembly into a first orientation, the catheter assembly including a catheter body and housing coupled to the catheter body proximal end, an actuator lumen extending therein, a flexible element extending from an actuator member coupled with the housing through the actuator lumen to a deflectable distal end, a first tubular support coupled to the flexible element and coupled to the actuator member, and a second tubular support slidably coupled to the flexible element;
longitudinally advancing the flexible element and first tubular support along the actuator lumen longitudinal axis; and further manipulating the actuator member to thereby advance the flexible element and deflect the deflectable distal end into a disparate orientation.
21. The method as recited in claim 20, further comprising maintaining the second tubular support stationary with respect to the housing, and maintaining the first tubular support and second tubular support in alignment with the actuator lumen longitudinal axis while longitudinally advancing the flexible element.
22. The method of any of claims 20 and 21, further comprising:
telescopically advancing the first tubular support with the actuator member with respect to the second tubular support.
23 The method of any of claims 20 - 22, further comprising:
constraining lateral movement of the flexible element including bracing the flexible element with the first tubular support and second tubular support.
24. The method of any of claims 20 - 23, wherein further manipulating the actuator member to deflect the deflectable distal end into the disparate orientation includes constraining lateral movement of the flexible element within the actuator lumen with the first tubular support and second tubular support.
25. The method of any of claims 20 - 24, wherein further manipulating the actuator member to deflect the deflectable distal end into the disparate orientation includes constraining lateral movement of the flexible element within the actuator lumen with the first tubular support and second tubular support.
Classifications
International ClassificationA61M25/01
Cooperative ClassificationA61M25/0147
European ClassificationA61M25/01C10K
Legal Events
DateCodeEventDescription
25 Jul 2006EEERExamination request