LOCKING COMPONENT FOR AN EMBOLIC FILTER ASSEMBLY
First Claim
Patent Images
1. An embolic protection system, comprising:
- a guide wire having a core;
a filter assembly disposed for travel along the guide wire core, the filter assembly having a first end and a second end; and
a shape memory tube disposed on at least one of the ends of the filter assembly, and the shape memory tube having an expanded state and a contracted state;
wherein the shape memory tube constricts onto the guide wire core when the shape memory tube transitions from the martensitic state to the austenitic state.
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Abstract
A locking component for locking a medical device onto a guide wire. Such medical devices include, for example, an embolic filter assembly used to capture embolic material that may be created and released into a patient'"'"'s vasculature during a stenting or angioplasty procedure. The embolic filter assembly tracks along the guide wire, and is delivered to a treatment site where it is locked in place and deployed. The locking component enables the filter assembly to lock onto any standard guide wire, and does not require a modified guide wire that has a specially-designed fitting or stop to accomplish the locking function.
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Citations
50 Claims
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1. An embolic protection system, comprising:
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a guide wire having a core; a filter assembly disposed for travel along the guide wire core, the filter assembly having a first end and a second end; and a shape memory tube disposed on at least one of the ends of the filter assembly, and the shape memory tube having an expanded state and a contracted state; wherein the shape memory tube constricts onto the guide wire core when the shape memory tube transitions from the martensitic state to the austenitic state. - View Dependent Claims (2, 3, 4, 10)
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5. A locking component for securing an intraluminal medical device onto an elongated wire, comprising:
a tubular body including a shape memory material having a first end and a second end, wherein the tubular body is slidably positioned along the elongated wire, and the first end being attached to the device that is to be secured along the elongated wire, and the second end grips the elongated wire when tubular body is transformed from an expanded state to a contracted state. - View Dependent Claims (6, 7, 8, 9)
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11. An embolic protection system wherein the guide wire is pre-deployed into a lumen, comprising:
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a guide wire having an elongated core without stops; a filter assembly disposed on the guide wire for movement along the elongated core, the filter assembly having a first end and a second end; and a locking device attached to at least one of the ends of the filter assembly, the locking device having an unlocked position for moving the filter assembly into a desired position on the pre-deployed guide wire within the lumen, and a locked position for securing the filter assembly onto the guide wire. - View Dependent Claims (12, 13, 14, 15)
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16. A method for locking a filter assembly to a guide wire, comprising:
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inserting the guide wire having an elongated core with no stops into a body lumen and directing a distal end of the guide wire to a treatment area; slidably mounting the filter assembly having first and second ends and including a guide wire locking component disposed on at least one end onto the guide wire, and advancing the filter assembly along the guide wire; and locking the guide wire locking component to the elongated core of the guide wire. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A locking component for securing a medical device to an elongated wire, comprising:
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a frame bushing having a tapered inner diameter, wherein the frame bushing is attached to the medical device and disposed for travel along the elongated wire; an interlocking bushing having a first and second end, wherein the first end is slidably disposed within the tapered inner diameter of the frame bushing, and the interlocking bushing is disposed for travel along the elongated wire; and wherein the medical device is secured to the elongated wire when the first end of the interlocking bushing is pushed along the tapered inner diameter of the frame bushing. - View Dependent Claims (24)
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25. An embolic protection system, comprising:
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a guide wire having an elongated core without stops; a filter assembly disposed on the guide wire for movement along the elongated core, the filter assembly having a first end and a second end; a self-contracting elastic tube having a free end and an opposite end extending from at least one of the ends of the filter assembly, the elastic tube having a contracted state for gripping onto the guide wire; and a hypotube disposed over the guide wire on to which is mounted the elastic tube, wherein translation of the hypotube relative to the elastic tube dismounts the elastic tube to transition into the contracted state. - View Dependent Claims (26, 27)
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28. A method for locking a medical device to a guide wire, comprising:
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inserting a guide wire having an elongated core into the blood vessel and advancing the distal end of the guide wire to a treatment area; slidably mounting a filter assembly having first and second ends to the guide wire; providing a hypotube disposed over the elongated core; mounting a self-contracting elastic tube over the hypotube and disposing the elastic tube on the filter assembly; advancing the filter assembly along the elongated core; and translating the hypotube relative to the elastic tube wherein the elastic tube at least partially dismounts and contracts onto the elongated core. - View Dependent Claims (29, 30)
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31. An embolic protection system, comprising:
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a guide wire having an elongated core without stops; a filter assembly disposed for movement along the guide wire core, the filter assembly having a first end and a second end; and a locking device projecting from at least one of the filter assembly ends, wherein the locking device includes a thrust bearing that allows free movement of the filter assembly in one direction and locks to the elongated core to prevent movement of the filter assembly in the opposite direction. - View Dependent Claims (32, 33, 34)
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35. A locking component for securing a medical device to an elongated wire, comprising:
a housing including a tapered interior diametrical profile and a roller positioned inside the housing that is moveable along the tapered interior diametrical profile, wherein the roller compresses against the guide wire when the roller is forced along the tapered interior diametrical profile of the housing from a greater diameter to a lesser diameter. - View Dependent Claims (36, 37, 38)
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39. An embolic protection system, comprising:
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a guide wire having an elongated core without stops; a filter assembly disposed on the guide wire, the filter assembly having a first end and a second end; and an interlocking mechanism attached to at least one of the ends of the filter assembly, the interlocking mechanism having a housing including a gripping member having an expanded state and a contracted state, and having a cap that engages the housing; wherein the filter assembly is locked onto the guide wire core by engaging the cap with the housing to transform the gripping member from the expanded state to the contracted state. - View Dependent Claims (40, 41, 42, 43)
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44. An embolic protection system, comprising:
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a guide wire having an elongated core with a proximal end and a distal end, and a coil disposed at the distal end of the core; a filter assembly disposed for travel along the elongated core, the filter assembly having a first end and a second end; and a self-contracting locking component having an attached end and a free end, wherein the attached end is attached to one of the ends of the filter assembly; and a hypotube on which is mounted at least the free end of the locking component and slidably disposed on the elongated core; wherein the free end of the locking component self-contracts onto the coil when the hypotube withdraws from underneath to dismount the free end of the locking component. - View Dependent Claims (45, 46, 47, 48)
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49. A method for locking a medical device to a guide wire, comprising:
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inserting a guide wire having an elongated core with proximal and distal ends and a coil disposed at the distal end of the guide wire into a blood vessel and advancing the distal end to a treatment area; slidably mounting a filter assembly having a first end and a second end onto the guide wire, and advancing the filter assembly to the distal end of the guide wire; and contracting a locking coil attached to one of the ends of the filter assembly onto the guide wire coil. - View Dependent Claims (50)
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Specification