Non-occlusive expandable catheter
First Claim
Patent Images
1. A catheter for applying energy to a wall of a vessel without occluding fluid flow comprising:
- a hollow elongated instrument having a proximal end and a distal end at least one lumen therethrough, further comprising at least one waveguide disposed within the lumen, the waveguide having a proximal end and a distal end, the proximal end of the waveguide being adapted to receive energy from an energy source;
a distributor disposed of at the distal end of the instrument constructed to receive energy from the waveguide and distribute the energy into a target region of a vessel wall; and
an expansion mechanism connected to the distributor for expanding the energy distributor at the target region in order to bring the distributor into close proximity with the vessel wall while creating at least one fluid passageway through the distributor.
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Abstract
Non-occluding catheters and methods for delivering energy to a vessel wall without occluding blood flow through the vessel wall are disclosed. In particular, the invention uses an energy distributor connected to an expansion mechanism and a waveguide. The expansion mechanism causes the distributor to come into close proximity with a target region in the vessel wall, while maintaining at least one fluid passageway for blood flow throughout the instrument.
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Citations
55 Claims
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1. A catheter for applying energy to a wall of a vessel without occluding fluid flow comprising:
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a hollow elongated instrument having a proximal end and a distal end at least one lumen therethrough, further comprising at least one waveguide disposed within the lumen, the waveguide having a proximal end and a distal end, the proximal end of the waveguide being adapted to receive energy from an energy source;
a distributor disposed of at the distal end of the instrument constructed to receive energy from the waveguide and distribute the energy into a target region of a vessel wall; and
an expansion mechanism connected to the distributor for expanding the energy distributor at the target region in order to bring the distributor into close proximity with the vessel wall while creating at least one fluid passageway through the distributor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for delivering energy to the walls of a vessel without occluding fluid flow comprising:
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inserting a catheter into the lumen of the vessel, the catheter comprising an elongated hollow instrument having a proximal end and distal end and further comprising a waveguide disposed within the lumen, the waveguide having a proximal end and a distal end, the proximal end of the waveguide being adapted for receiving energy from an energy source and delivering energy to the interior of, a distributor at the distal end of the waveguide, the distributor being constructed for receiving energy from the waveguide and for distributing energy to a target region of a vessel wall, and an expansion mechanism connected to the energy distributor for expanding the distributor at the target region;
activating the expansion mechanism, thereby expanding the energy distributor at the target region and creating at least one fluid passageway through the distributor; and
transmitting the energy from the distributor to the target region. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for treating a region in a vessel without occluding fluid flow comprising:
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administering a therapeutically effective amount of a therapeutic agent to the subject;
inserting a catheter into the lumen of the vessel, the catheter comprising an elongated hollow instrument having a proximal end and distal end and further comprising a waveguide disposed within the lumen, the waveguide having a proximal end and a distal end, the proximal end of the waveguide being adapted for receiving energy from an energy source and delivering energy to the interior of, a distributor at the distal end of the waveguide, the distributor being constructed for receiving energy from the waveguide and for distributing energy to a target region of a vessel wall, and an expansion mechanism connected to the energy distributor for expanding the distributor at the target region;
activating the expansion mechanism, thereby expanding the energy distributor at the target region and creating at least one fluid passageway through the distributor; and
transmitting energy to the target region via the distributor that modulates the therapeutic agent such that the therapeutic agent alters the target region, thereby treating the region. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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33. A catheter for applying energy to a wall of a vessel without occluding fluid flow comprising:
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a hollow elongated instrument having a proximal end and a distal end;
a distributor disposed of at the distal end of the instrument, wherein the distribute comprises a source of ionizing radiation, and is constructed to distribute the radiation into a target region of a vessel wall; and
an expansion mechanism connected to the distributor for expanding the distributor at the target region in order to bring the distributor into close proximity with the vessel wall while creating at least one fluid passageway through the distributor. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A method for delivering energy to the walls of a vessel without occluding fluid flow comprising:
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inserting a catheter into the lumen of the vessel, the catheter comprising an elongated hollow instrument having a proximal end and distal end, and a distributor comprising a source of ionizing radiation, wherein the distributer is constructed to distribute the radiation to a target region of a vessel wall, and an expansion mechanism connected to the radiation distributor for expanding the distributor at the target region;
activating the expansion mechanism, thereby expanding the energy distributor at the target region and creating at least one fluid passageway through the distributor; and
transmitting the radiation emitted by the source of ionizing radiation from the distributor to the target region. - View Dependent Claims (45, 46, 47)
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48. A method for treating a region in a vessel without occluding fluid flow comprising:
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administering a therapeutically effective amount of a therapeutic agent to the subject;
inserting a catheter into the lumen of the vessel, the catheter comprising an elongated hollow instrument having a proximal end and distal end, and a distributor comprising a source of ionizing radiation, wherein the distributer is constructed to distribute the radiation to a target region of a vessel wall, and an expansion mechanism connected to the radiation distributor for expanding the distributor at the target region;
activating the expansion mechanism, thereby expanding the energy distributor at the target region and creating at least one fluid passageway through the distributor; and
transmitting the radiation emitted by the source of ionizing radiation to the target region via the distributor that modulates the therapeutic agent such that the therapeutic agent alters the target region, thereby treating the region. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55)
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Specification