Catheter with distally located integrated circuit radiation generator
First Claim
1. A catheter, comprising:
- a semiconductor oscillator including first and second electrodes adapted for the application of energizing voltage thereto for generating electromagnetic radiation in response to application of said energizing voltage;
an elongated electrically insulating piece defining proximal and distal ends, said distal end being adapted to be introduced into a vas;
first and second elongated electrical conductive means electrically isolated by at least said elongated electrically insulating piece, said first and second elongated electrically conductive means each defining proximal and distal ends;
first electrical connecting means coupled to said first electrode of said semiconductor oscillator and to said distal end of said first elongated conductive means for providing electrical continuity therebetween;
second electrical connecting means coupled to said second electrode of said semiconductor radiation emitter and to said distal end of said second elongated conductive means for providing electrical continuity therebetween; and
mechanical connecting means coupled to said oscillator and to said electrically insulating piece for mechanical coupling thereof to form an assemblage which is adapted to be introduced into a vas.
1 Assignment
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Accused Products
Abstract
A catheter includes at least two electrical conductors extending from the proximal to the distal ends. A semiconductor chip generator of electromagnetic radiation is located at the distal end and is energized by electrical power supplied by the electrical conductors. The chip may be a laser or include an oscillator for generating electromagnetic radiation at a selected frequency or frequencies. In one embodiment, two chip radiation generators are located distally, each connected to one of the conductors. A third conductor is connected in common to both chips, whereby they may be energized independently. An axial aperture may be provided for a guide wire. A balloon may surround the distal end of the catheter, and may be inflated by way of another axial aperture.
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Citations
16 Claims
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1. A catheter, comprising:
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a semiconductor oscillator including first and second electrodes adapted for the application of energizing voltage thereto for generating electromagnetic radiation in response to application of said energizing voltage; an elongated electrically insulating piece defining proximal and distal ends, said distal end being adapted to be introduced into a vas; first and second elongated electrical conductive means electrically isolated by at least said elongated electrically insulating piece, said first and second elongated electrically conductive means each defining proximal and distal ends; first electrical connecting means coupled to said first electrode of said semiconductor oscillator and to said distal end of said first elongated conductive means for providing electrical continuity therebetween; second electrical connecting means coupled to said second electrode of said semiconductor radiation emitter and to said distal end of said second elongated conductive means for providing electrical continuity therebetween; and mechanical connecting means coupled to said oscillator and to said electrically insulating piece for mechanical coupling thereof to form an assemblage which is adapted to be introduced into a vas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A catheter, comprising:
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a semiconductor radiation emitter including first and second electrodes adapted for the application of energizing voltage thereto; an elongated electrically insulating piece defining proximal and distal ends, said distal end being adapted to be introduced into a vas; first and second elongated electrical conductive means electrically isolated by at least said elongated electrically insulating piece, said first and second elongated electrically conductive means each defining proximal and distal ends; first connecting means coupled to said first electrode of said semiconductor radiation emitter and to said distal end of said first elongated conductive means for providing electrical continuity therebetween; and second connecting means coupled to said second electrode of said semiconductor radiation emitter and to said distal end of said second elongated conductive means for providing electrical continuity therebetween; and further comprising a second semiconductor radiation emitter, including first and second electrodes for the application of energizing voltage thereto. - View Dependent Claims (10, 11, 12, 13)
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14. A method for performing angioplasty, comprising the steps of:
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introducing into a vas the distal end of a cable including elongated mutually electrically insulated multiple electrical conductors, near the distal end of which is located an oscillator adapted for, when electrically energized, producing electromagnetic radiation at least somewhat capable of penetrating through flesh; positioning said distal end of said cable adjacent a region to which electromagnetic radiation is to be applied; applying direct electrical power across at least two of said electrical conductors to thereby energize said oscillator for causing said radiation; and ceasing said applying step after a predetermined time.
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15. A catheter, comprising:
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first and second elongated, mutually electrically insulated electrical conductors defining proximal and distal ends, said proximal ends being adapted for being coupled to a source of electrical power defining a first frequency, which frequency may include zero frequency; and frequency conversion means connected near said distal end of said first and second conductors and, together with said conductors, being dimensioned and arranged for introduction of at least said distal end into a vas, for generating electromagnetic radiation at a frequency different from said first frequency, and for coupling said electromagnetic radiation to surrounding tissue. - View Dependent Claims (16)
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Specification