Catheter with multiple ultrasound radiating members
First Claim
1. A catheter system for delivering ultrasonic energy and a therapeutic compound to a treatment site within a body lumen, the catheter comprising:
- a tubular body having a proximal end, a distal end and an energy delivery section positioned between the proximal end and the distal end;
a fluid delivery lumen extending at least partially through the tubular body and having at least one outlet in the energy delivery section; and
an inner core configured for insertion into the tubular body, the inner core comprising;
an elongate electrical conductor having a plurality of flattened regions, each flattened region having a first flat side and a second flat side opposite the first flat side, anda plurality of ultrasound radiating members mounted in pairs to the flattened regions of the elongate electrical conductor, such that a first ultrasound radiating member is mounted to the first flat side of the elongate electrical conductor, and a second ultrasound radiating member is mounted to the second flat side of the elongate electrical conductor; and
wiring such that a voltage can be applied from the elongate electrical conductor across the first and second ultrasound radiating members such that the first and second ultrasound radiating members can be driven simultaneously.
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Accused Products
Abstract
A catheter for delivering ultrasonic energy and therapeutic compounds to a treatment site within a patient'"'"'s vasculature comprises a tubular body. The tubular body has a proximal region and a distal region opposite the proximal region. The catheter further comprises a plurality of fluid delivery lumens formed into the tubular body. The catheter further comprises an inner core configured for insertion into the tubular body. The inner core comprises an elongate electrical conductor having a plurality of flattened regions, each flattened region having a first flat side and a second flat side opposite the first flat side. The inner core further comprises a plurality of ultrasound radiating members mounted in pairs to the flattened regions of the elongate electrical conductor. A first ultrasound radiating member is mounted to the first flat side of the elongate electrical conductor, and a second ultrasound radiating member is mounted to the second flat side of the elongate electrical conductor. The catheter further comprises control electronics configured to apply a driving signal to at least two, but fewer than all, of the ultrasound radiating members.
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Citations
23 Claims
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1. A catheter system for delivering ultrasonic energy and a therapeutic compound to a treatment site within a body lumen, the catheter comprising:
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a tubular body having a proximal end, a distal end and an energy delivery section positioned between the proximal end and the distal end; a fluid delivery lumen extending at least partially through the tubular body and having at least one outlet in the energy delivery section; and an inner core configured for insertion into the tubular body, the inner core comprising; an elongate electrical conductor having a plurality of flattened regions, each flattened region having a first flat side and a second flat side opposite the first flat side, and a plurality of ultrasound radiating members mounted in pairs to the flattened regions of the elongate electrical conductor, such that a first ultrasound radiating member is mounted to the first flat side of the elongate electrical conductor, and a second ultrasound radiating member is mounted to the second flat side of the elongate electrical conductor; and wiring such that a voltage can be applied from the elongate electrical conductor across the first and second ultrasound radiating members such that the first and second ultrasound radiating members can be driven simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ultrasonic catheter comprising:
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a tubular body having a proximal end, a distal end and a treatment zone located between the distal end and the proximal end; a plurality of fluid delivery lumens defined within the tubular body; an inner core comprising at least one ultrasound radiating element; and a plurality of cooling fluid channels defined between at least an inner surface of the tubular body and an outer surface of the inner core, each cooling fluid channel being positioned generally radially between two fluid delivery lumens. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification