INTRAVASCULAR GUIDEWIRE FILTER SYSTEM FOR PULMONARY EMBOLISM PROTECTION AND EMBOLISM REMOVAL OR MACERATION
First Claim
1. An intravascular guidewire filter system comprising a manifold having a central elongated tubular body, said central elongated tubular body having a proximal end and a distal end, an elongated flexible delivery tube having a proximal end and a distal end, said proximal end of said elongated flexible delivery tube being fixed within said distal end of said central elongated tubular body, an apertured seal within said proximal end of said central elongated tubular body, a guidewire having a proximal end and a distal end, said guidewire extending through said apertured seal, through said elongated tubular body, and through said elongated flexible delivery tube, a flexible preformed memory shaped distal filter being attached to said guidewire, a flexible preformed memory shaped proximal filter being attached to said guidewire proximal to said distal filter.
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Abstract
An intravascular emboli capture and retrieval system for intravascular embolism protection and embolism removal or maceration. Guidewire mounted proximally and distally located multiple opening filters are deployed within the vasculature and used to part, divide and macerate embolic debris and to capture such embolic debris within the confines thereof. A deployable flexible preformed memory shaped capture sleeve is alternatively used to collapse one or more filters and embolic debris therein for subsequent proximal withdrawal from the vasculature.
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Citations
32 Claims
- 1. An intravascular guidewire filter system comprising a manifold having a central elongated tubular body, said central elongated tubular body having a proximal end and a distal end, an elongated flexible delivery tube having a proximal end and a distal end, said proximal end of said elongated flexible delivery tube being fixed within said distal end of said central elongated tubular body, an apertured seal within said proximal end of said central elongated tubular body, a guidewire having a proximal end and a distal end, said guidewire extending through said apertured seal, through said elongated tubular body, and through said elongated flexible delivery tube, a flexible preformed memory shaped distal filter being attached to said guidewire, a flexible preformed memory shaped proximal filter being attached to said guidewire proximal to said distal filter.
- 4. An intravascular guidewire filter system comprising a first manifold and a second manifold, each of said manifolds having a central elongated tubular body, each of said central elongated tubular bodies having a proximal end and a distal end, said first manifold being proximal to said second manifold, an apertured sealing element being secured within said proximal end of said central elongated tubular body of said first manifold, an elongated flexible delivery tube having a proximal end and a distal end, said proximal end of said elongated flexible delivery tube being connected through said distal end of said central elongated tubular body of said second manifold, said distal end of said elongated flexible delivery tube extending a predetermined distance beyond said distal end of said central elongated tubular body, an elongated flexible capture positioning tube having a proximal end and a distal end, said proximal end of said elongated flexible capture positioning tube being secured within said distal end of said central elongated tubular body of said first manifold, a guidewire having a proximal end and a distal end, said proximal end of said guidewire extending coaxially through said apertured sealing element, through said central elongated tubular body, through said elongated flexible capture positioning tube, and extendable a predetermined distance beyond said distal end of said elongated flexible capture positioning tube, a first flexible preformed memory shaped distal filter being attached to said guidewire, a second flexible preformed memory shaped proximal filter being attached to said guidewire proximal to said first flexible preformed memory shaped distal filter, an elongated flexible capture sleeve having a proximal end and a distal end, said proximal end of said elongated flexible capture sleeve being attached to said distal end of said elongated flexible capture positioning tube, said elongated flexible capture sleeve being proximal to said proximal filter.
- 27. An intravascular guidewire filter system comprising a manifold having a central elongated tubular body, said central elongated tubular body having a proximal end and a distal end, an elongated flexible delivery tube having a proximal end and a distal end, said proximal end of said elongated flexible delivery tube being fixed within said distal end of said central elongated tubular body, an apertured seal within said proximal end of said central elongated tubular body, a guidewire having a proximal end and a distal end, said guidewire extending through said apertured seal, through said elongated tubular body, and through said elongated flexible delivery tube, and two or more flexible preformed memory shaped filters being attached to said guidewire.
- 29. An intravascular guidewire filter system comprising a manifold having a central elongated tubular body, said central elongated tubular body having a proximal end and a distal end, an elongated flexible delivery tube having a proximal end and a distal end, said proximal end of said elongated flexible delivery tube being fixed within said distal end of said central elongated tubular body, an apertured seal within said proximal end of said central elongated tubular body, a guidewire having a proximal end and a distal end, said guidewire extending through said apertured seal, through said elongated tubular body, and through said elongated flexible delivery tube, an elongated flexible capture sleeve having a proximal end and a distal end, said distal end of said elongated flexible capture sleeve being proximal to one or more flexible preformed memory shaped filters being attached to said guidewire.
Specification