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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0463570 (2009-05-11) |
| 등록번호 | US-8308659 (2012-11-13) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 345 인용 특허 : 5 |
A deflectable sheath for use in medical procedures in the vasculature is described. The sheath includes a handle supporting the sheath. Two pull wires run along opposite sides of the sheath to anchors at the deflectable distal end. The handle includes a rotatable member that moves a threaded member
A deflectable sheath for use in medical procedures in the vasculature is described. The sheath includes a handle supporting the sheath. Two pull wires run along opposite sides of the sheath to anchors at the deflectable distal end. The handle includes a rotatable member that moves a threaded member including wire guide in a back and forth translation. As the movement occurs, force is applied to either one or the other of the pull wires to cause deflection of distal end of the sheath in either and upwardly or a downwardly direction with respect to the longitudinal axis of the sheath.
1. A deflectable sheath, which comprises: a) a tubular sheath providing a delivery lumen extending from a proximal sheath portion to a deflectable distal sheath end;b) a handle supporting the proximal sheath portion;c) a support shaft extending along a first longitudinal axis of a shaft bore from a
1. A deflectable sheath, which comprises: a) a tubular sheath providing a delivery lumen extending from a proximal sheath portion to a deflectable distal sheath end;b) a handle supporting the proximal sheath portion;c) a support shaft extending along a first longitudinal axis of a shaft bore from a distal shaft end to an open proximal shaft end, wherein the proximal sheath portion is received in the shaft bore with the delivery lumen of the sheath being in open communication to the proximal end of the handle;d) a threaded member housed inside the handle and longitudinally movable back and forth in a translational relationship along the support shaft, wherein the threaded member carries a wire guide retainer;e) a rotatable member supported on the support shaft in a rotatable, but non-translational relationship therewith and at a position distal to the wire guide retainer, wherein the rotatable member is threadingly engaged with the threaded member to effect selected translational movement of the threaded member carrying the wire guide retainer along the support shaft;f) wherein a first pull wire secured to the deflectable distal sheath end extends along the sheath and the support shaft before deviating at an acute angle past the wire guide retainer to a proximal change-of-direction device and then back at the acute angle to and then through the wire guide retainer to a proximal first pull wire end provided with a first stop member located distally of the wire guide retainer;g) wherein a second pull wire secured to the deflectable distal sheath end extends along the sheath and the support shaft to and through the wire guide retainer to a proximal second pull wire end provided with a second stop member located proximally of the wire guide retainer;h) wherein the rotatable member is manipulatable in a first direction to translate the threaded member carrying the wire guide retainer along the support shaft in a forwardly direction against the first stop member to apply a first pulling force on the first pull wire to thereby deflect the distal sheath end into a first orientation out of alignment with respect to a second longitudinal axis of the sheath; andi) wherein the rotatable member is manipulatable in a second direction, opposite the first direction, to translate the threaded member carrying the wire guide retainer along the support shaft in a rearwardly direction against the second stop member to apply a second pulling force on the second pull wire to thereby deflect the distal sheath end into a second orientation, out of alignment with respect to the second longitudinal axis of the sheath. 2. The deflectable sheath of claim 1 further including the support shaft being received on the sheath radially intermediate the threaded member and the proximal sheath portion. 3. The deflectable sheath of claim 1 wherein the wire guide retainer comprises a first bore slidingly receiving the first pull wire and a second bore slidingly receiving the second pull wire. 4. The deflectable sheath of claim 3 wherein the threaded member carrying the wire guide retainer is movable in the forwardly direction against the first stop member to apply the first pulling force on the first pull wire with the second pull wire and the second stop member slidable in the second bore in the wire guide retainer, and wherein the threaded member carrying the wire guide retainer is movable in the rearwardly direction against the second stop member to apply the second pulling force on the second pull wire with the first pull wire slidable in the first bore in the wire guide retainer. 5. The deflectable sheath of claim 1 wherein the threaded member includes a carriage portion that carries the wire guide retainer. 6. The deflectable sheath of claim 1 wherein the change of direction device is a pulley or a post. 7. The deflectable sheath of claim 1 wherein the first orientation of the deflected distal sheath end is substantially opposite the second orientation. 8. The deflectable sheath of claim 1 wherein, the first and second pull wires reside between the tubular sheath and a liner. 9. The deflectable sheath of claim 1 wherein the first and second pull wires are provided with respective anchors at the deflectable sheath end. 10. The deflectable sheath of claim 1 wherein the first and second pull wires reside on diametrically opposite sides of the tubular sheath. 11. The deflectable sheath of claim 1 wherein the first and second pull wires are in a slidable relationship with respective bores in the wire guide retainer. 12. The deflectable sheath of claim 1 wherein the rotatable member comprises a plurality of protrusions spaced about its periphery. 13. The deflectable sheath of claim 1 wherein the proximal portion of the sheath connects to a funnel-shaped hub. 14. The deflectable sheath of claim 13 wherein the hub supports a sealable membrane. 15. The deflectable sheath of claim 1 wherein the proximal portion of the sheath includes a side port. 16. The deflectable sheath of claim 1 wherein the support shaft provides opposed grooves extending parallel to the longitudinal axis of the shaft bore and the first and second pull wires reside in the respective grooves where they extend along the support shaft in a co-axial relationship with the shaft bore. 17. A deflectable sheath, which comprises: a) a tubular sheath providing a delivery lumen, extending from a proximal sheath portion to a deflectable distal sheath end;b) a handle supporting the proximal sheath portion;c) a support shaft extending along a first longitudinal axis of a shaft bore from a distal shaft end to an open proximal shaft end, wherein the support shaft provides spaced apart first and second grooves extending parallel to the first longitudinal axis of the shaft bore and wherein the proximal sheath portion is received in the shaft bore with the delivery lumen of the sheath being in open communication to the proximal end of the handle;d) a threaded member housed, inside the handle and longitudinally movable back and forth in a translational relationship along the support shaft, wherein the threaded member includes a carriage carrying a wire guide retainer;e) a rotatable member supported on the support shaft in a rotatable, but non-translational relationship therewith and at a position distal to the wire guide retainer carried by the carriage, wherein the rotatable member is threadingly engaged with the threaded member to effect selected translational movement of the threaded member and the carriage carrying the wire guide retainer along the support shaft;f) wherein a first pull wire secured to the deflectable distal sheath end extends along the sheath and the first groove of the support shaft before deviating at an acute angle past the wire guide retainer to a proximal pulley and then back at the acute angle to and then through a first bore in the wire guide retainer to a proximal first pull wire end provided with a first stop member located distally of the wire guide retainer;g) wherein a second pull wire secured to the deflectable distal sheath end extends along the sheath and the second groove in the support shaft to and through a second bore in the wire guide retainer to a proximal second pull wire end provided with a second stop member located proximally of the wire guide retainer;h) wherein the rotatable member is manipulatable in first direction to translate the threaded member and the carriage carrying the wire guide retainer along the support shaft in a forwardly direction against the first stop member to apply a first pulling force on the first pull wire to thereby deflect the distal sheath end into a first orientation out of alignment with respect to a second longitudinal axis of the sheath; andi) wherein the rotatable member is manipulatable in a second direction, opposite the first direction, to translate the threaded member carrying the wire guide retainer along the support shaft in a rearwardly direction against the second stop member to apply a second pulling force on the second pull wire to thereby deflect the distal sheath end into a second orientation out of alignment with respect to the second longitudinal axis of the sheath. 18. The deflectable sheath of claim 17 wherein the threaded member carrying the wire guide retainer is movable in the forwardly direction against the first stop member to apply the first pulling force on the first pull wire with the second pull wire and the second stop member slidable in the second bore in the wire guide retainer, and wherein the threaded member carrying the wire guide retainer is movable in the rearwardly direction against the second stop member to apply the second pulling force on the second pull wire with the first pull wire slidable in the first bore in the wire guide retainer. 19. The deflectable sheath of claim 17 further including the support shaft being received on the sheath radially intermediate the threaded member and the proximal sheath portion. 20. The deflectable sheath of claim 17 wherein the wire guide retainer comprises a first bore slidingly receiving the first pull wire and a second bore slidingly receiving the second pull wire. 21. The deflectable sheath of claim 17 wherein the change of direction device is a pulley or a post. 22. The deflectable sheath of claim 17 wherein the first orientation of the deflected distal sheath end is substantially opposite the second orientation. 23. The deflectable sheath of claim 17 wherein the first and second pull wires reside between the tubular sheath and a liner. 24. The deflectable sheath of claim 17 wherein the first and second pull wires are provided with respective anchors at the deflectable sheath end. 25. The deflectable sheath of claim 17 wherein the first and second pull wires reside on diametrically opposite sides of the tubular sheath. 26. The deflectable sheath of claim 17 wherein the first and second pull wires are in a slidable relationship with respective bores in the wire guide retainer. 27. The deflectable sheath of claim 17 wherein the rotatable member comprises a plurality of protrusions spaced about its periphery. 28. The deflectable sheath of claim 17 wherein the proximal portion of the sheath connects to a funnel-shaped hub. 29. The deflectable sheath of claim 28 wherein the hub supports a sealable membrane. 30. The deflectable sheath of claim 17 wherein the proximal portion of the sheath includes a side port. 31. The deflectable sheath of claim 17 wherein the first and second pull wires reside in the respective first and second grooves where they extend along the support shaft in a co-axial relationship with the shaft bore. 32. A deflectable sheath, which comprises: a) a tubular sheath providing a delivery lumen extending from a proximal sheath portion to a deflectable distal sheath end;b) a handle supporting the proximal sheath portion;c) a support shaft extending along a first longitudinal axis of a shaft bore from a distal shaft end to an open proximal shaft end, wherein the support shaft provides opposed first and second grooves extending parallel to the first longitudinal axis of the shaft bore and wherein the proximal sheath portion is received in the shaft bore with the delivery lumen of the sheath being in open communication to the proximal end of the handle;d) a threaded member housed inside the handle and longitudinally movable back and forth in a translational relationship along the support shaft, wherein the threaded member includes a wire guide retainer;e) a rotatable member supported on the support shaft in a rotatable, but non-translational relationship therewith and at a position distal to the wire guide retainer, wherein the rotatable member is threadingly engaged with the threaded member to effect selected translational movement of the threaded member carrying the wire guide retainer along the support shaft;f) wherein a first pull wire secured to the deflectable distal sheath end extends along the sheath and the first groove of the support shaft in a co-axial relationship with the shaft bore before deviating at an acute angle past the wire guide retainer to a proximal pulley and then back at the acute angle to and then through a first bore in the wire guide retainer to a proximal first pull wire end provided with a first stop member located distally of the wire guide retainer;g) wherein a second pull wire secured to the deflectable distal sheath end extends along the sheath and the second groove in the support shaft in a co-axial relationship with the shaft bore to and through a second bore in the wire guide retainer to a proximal second pull wire end provided with a second stop member located proximally of the wire guide retainer;h) wherein the rotatable member is manipulatable in a first direction to translate the threaded member and the carriage carrying the wire guide retainer along the support shaft in a forwardly direction against the first stop member to apply a first pulling force on the first pull wire to thereby deflect the distal sheath end into a first orientation out of alignment with respect to a second longitudinal axis of the sheath; andi) wherein the rotatable member is manipulatable in a second direction, opposite the first direction, to translate the threaded member carrying the wire guide retainer along the support shaft in a rearwardly direction against the second stop member to apply a second pulling force on the second pull wire to thereby deflect the distal sheath end into a second orientation out of alignment with respect to the second longitudinal axis of the sheath.
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