Vascular embolic filter devices and methods of use therefor
First Claim
1. An intravascular embolic protection system comprising:
- a guide wire;
an embolic filter engageable over the guide wire, wherein the guide wire is deliverable within a vessel independently of the embolic filter; and
a means for limiting translation of the embolic filter over the guide wire, the means for limiting comprising a first stop mechanism located proximal to the embolic filter when the embolic filter is operatively engaged over the guide wire.
1 Assignment
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Accused Products
Abstract
Vascular embolic filtering devices and systems, as well as methods for using the same, are provided. The embolic filtering device includes a guide wire and an associated embolic filter for capturing emboli created during interventional procedures within a target vessel. Features of the subject devices and system provide for delivering of the guide wire independently of the filter, rotating of the guide wire with respect to the filter and limiting or preventing the proximal translation of the filter with respect to the guide wire. The embolic filter is attached to a sheath having either a shorter-length configuration or an extended-length configuration. The guide wire comprises a proximal stop mechanism engageable with the sheath to limit at least the proximal translation of the embolic filter. The subject embolic filter systems provide such guide wires and embolic filters, as well as and an embolic filter delivery, deployment and removal assembly. The methods of the present invention provide for the use of the subject devices and systems.
256 Citations
80 Claims
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1. An intravascular embolic protection system comprising:
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a guide wire;
an embolic filter engageable over the guide wire, wherein the guide wire is deliverable within a vessel independently of the embolic filter; and
a means for limiting translation of the embolic filter over the guide wire, the means for limiting comprising a first stop mechanism located proximal to the embolic filter when the embolic filter is operatively engaged over the guide wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 55)
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28. An intravascular embolic protection system for collecting and removing debris from within a vessel, comprising:
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a filter attached to a sheath comprising an open distal end, an open proximal end and a guide wire lumen there between;
a guide wire operatively disposed with the guide wire lumen wherein the guide wire is rotatable with respect to the filter and the filter is translatable along the axis of the guide wire, the guide wire comprising a stop mechanism wherein the lumen is not translatable in the proximal direction beyond the stop mechanism. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of translating an embolic filter disposed over a distal portion of a guide wire operatively positioned within a target location within a target vessel, comprising the steps of:
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providing a first stop mechanism associated with the guide wire at a location proximal to the distally disposed embolic filter;
translating the embolic filter along the guide wire in the proximal direction; and
limiting further proximal translation of the embolic filter by means of the first stop mechanism. - View Dependent Claims (39, 40)
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41. The method of 38 wherein the first stop mechanism is located at a proximal portion of the guide wire.
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42. The method of 41 wherein the step of limiting comprises the step of locking the position of the filter with respect to the guide wire.
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43. The method of 42 wherein the step of locking comprises the step of preventing the axial translation of the filter along the guide wire.
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44. A method for delivering an embolic filter to within a target vessel comprising the steps of:
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providing a guide wire having a first stop mechanism; and
delivering a distal portion of the guide wire to a target location within the target vessel; and
translating the embolic filter along the guide wire in the distal direction to a location distal of the first stop mechanism. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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56. The method of 44 further comprising the step of preventing further distal translation of the filter by means of a second stop mechanism associated with the guide wire.
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57. A method of delivery, deploying and retrieving an embolic filter within a target vessel used to collect emboli within blood flowing through a target site of an interventional procedure, the method comprising the steps of:
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providing a guide wire assembly comprising a guide wire and a first stop positioned at a distal portion of the guide wire, wherein the first stop has a deployed configuration and an undeployed configuration;
delivering the distal end of the guide wire assembly, wherein first stop is in an undeployed configuration, to a location wherein the first stop is distal to the target site;
providing an undeployed filter attached to a sheath;
advancing the sheath over the guide wire to a location distal of the first stop;
deploying the filter; and
deploying the first stop. - View Dependent Claims (58, 59, 60, 61, 62, 63)
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64. A method of delivery, deploying and retrieving an embolic filter within a target vessel used to collect emboli within blood flowing through a target site of an interventional procedure, the method comprising the steps of:
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providing a guide wire assembly comprising a guide wire and a first stop positioned at a proximal portion of the guide wire;
delivering the distal end of the guide wire assembly to a location distal to the target site;
providing an undeployed filter attached to a sheath;
advancing the sheath over the guide wire to a distal portion of the guide wire;
deploying the filter; and
fixing the position of the filter with respect to the guide wire. - View Dependent Claims (65, 66, 67, 68)
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69. A method of deploying an intravascular device, the method comprising the steps of:
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inserting a guide wire into a vessel and maneuvering the guide wire to deliver a distal end portion of the guide wire to a target location in a vessel;
passing the intravascular device over the guide wire, whereby the intravascular device is freely rotatable and translatable with respect to the guide wire;
passing the intravascular device over a proximal stop on the guide wire to a deployment position on the distal end portion of the guide wire, the deployment position being located between the proximal stop and a distal stop on the guide wire; and
preventing the intravascular device from translating proximally beyond the proximal stop and distally beyond the distal stop. - View Dependent Claims (70)
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71. A proximal stop mechanism for use with a guide wire deliverable in a vessel, comprising:
a one-way translation member affixed to the guide wire, wherein a device translatably disposed on the guide wire is allowed to translate proximally over the one-way translation member but is prevented from translating distally over the one-way translation member. - View Dependent Claims (72, 73, 74, 75, 76, 77)
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78. A locking mechanism for use with a guide wire deliverable in a vessel, comprising:
a sleeve member disposed over a distal portion of the guide wire, wherein the sleeve member has means for releasably locking the translational position of a device translatably disposed on the guide wire. - View Dependent Claims (79, 80)
Specification