NEEDLE INJECTION CATHETER
First Claim
1. A needle injection catheter, comprising:
- a delivery tube, said delivery tube having a first end, a second end and a handle portion adjacent said first end;
at least one hypotube, said hypotube being sized and shaped to fit slidably within said delivery tube, having a proximal end, a distal end and at least three hollow needle portions connected to and extending outwardly at said distal end;
said needle portions, being formed of resilient material, curving outwardly from a central axis of said delivery tube and having ends shaped to penetrate tissue when said hypotube is urged toward said second end of said delivery tube;
a first sensor, said first sensor being disposed adjacent said second end of said delivery tube and electrically connected to a first notification device disposed adjacent said first end; and
at least one second sensor, said second sensor being disposed adjacent said end of said needle portion and electrically connected to a second notification device disposed adjacent said first end of said delivery tube; and
a microcircuit electrically connected to said first and second sensors and to a power supply.
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Accused Products
Abstract
The needle injection catheter includes a delivery tube and at least one hypotube that fits slidably within the delivery tube. The hypotube has at least three hollow needle portions extending outwardly at its distal end. The needle portions curve outwardly and have ends shaped to penetrate tissue. At least one reference electrode is located on the delivery tube, spaced from the second end. At least one proximal electrode is located adjacent and spaced from the end of the needle portion. The proximal electrode is electrically connected to a first notification device. A microcircuit is electrically connected to the proximal electrode, the reference electrode and to a power supply. A distal electrode is located adjacent the end of the needle portion and electrically connected to the microcircuit. A tip electrode is located adjacent the second end of the delivery tube and electrically connected to a second notification device and the microcircuit.
92 Citations
88 Claims
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1. A needle injection catheter, comprising:
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a delivery tube, said delivery tube having a first end, a second end and a handle portion adjacent said first end; at least one hypotube, said hypotube being sized and shaped to fit slidably within said delivery tube, having a proximal end, a distal end and at least three hollow needle portions connected to and extending outwardly at said distal end; said needle portions, being formed of resilient material, curving outwardly from a central axis of said delivery tube and having ends shaped to penetrate tissue when said hypotube is urged toward said second end of said delivery tube; a first sensor, said first sensor being disposed adjacent said second end of said delivery tube and electrically connected to a first notification device disposed adjacent said first end; and at least one second sensor, said second sensor being disposed adjacent said end of said needle portion and electrically connected to a second notification device disposed adjacent said first end of said delivery tube; and a microcircuit electrically connected to said first and second sensors and to a power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A needle injection catheter, comprising:
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a delivery tube, said delivery tube having a first end, a second end and a handle portion adjacent said first end; at least one hypotube, said hypotube being sized and shaped to fit slidably within said delivery tube, having a proximal end, a distal end and at least three hollow needle portions connected to and extending outwardly at said distal end; said needle portions, being formed of resilient material, curving outwardly from a central axis of said delivery tube and having ends shaped to penetrate tissue when said hypotube is urged toward said second end of said delivery tube; at least one reference electrode, said reference electrode being disposed upon said delivery tube, spaced from said second end; at least one proximal electrode, said proximal electrode being disposed adjacent and spaced from said end of said needle portion and electrically connected to a first notification device disposed adjacent said first end of said delivery tube; and a microcircuit electrically connected to said proximal electrode, said reference electrode and to a power supply. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88)
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Specification