Electrosurgical cannula
First Claim
Patent Images
1. A cannula comprising:
- an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween and further comprising a wall defining at least one lateral aperture therethrough and a distal end defining at least one distal aperture;
wherein said distal region comprises an electrically exposed and conductive distal tip and wherein an outer surface of said cannula between said distal tip and said proximal region is non-conductive.
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Abstract
This invention discloses a cannula comprising an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween, and further comprising a wall defining at least one lateral aperture therethrough and a distal end defining at least one distal aperture. The distal region comprises an electrically exposed and conductive distal tip and the outer surface of the cannula between the distal tip and the proximal region is non-conductive.
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Citations
48 Claims
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1. A cannula comprising:
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an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween and further comprising a wall defining at least one lateral aperture therethrough and a distal end defining at least one distal aperture;
wherein said distal region comprises an electrically exposed and conductive distal tip and wherein an outer surface of said cannula between said distal tip and said proximal region is non-conductive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A kit comprising:
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at least one cannula comprising an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween and further comprising a wall defining at least one lateral aperture therethrough and a distal end defining at least one distal aperture;
at least one probe; and
at least one stylet;
wherein said distal region comprises an electrically exposed and conductive distal tip and wherein an outer surface of said cannula between said distal tip and said proximal region is non-conductive. - View Dependent Claims (20, 21, 22)
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23. A electrosurgical system comprising:
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at least one cannula comprising an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween and further comprising a wall defining at least one lateral aperture therethrough and a distal end defining at least one distal aperture, said distal region comprising an electrically exposed and conductive distal tip; and
an energy source for delivering energy to the distal tip;
wherein an outer surface of said cannula between said distal tip and said proximal region is non-conductive. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method of treating a patient comprising the steps of:
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providing a cannula comprising at least one distal aperture and at least one lateral aperture;
delivering a treatment composition to a treatment site via said at least one lateral aperture and said at least one distal aperture; and
delivering energy to said treatment site via said cannula. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A method of treating a patient comprising the steps of:
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providing a cannula comprising at least one distal aperture and at least one lateral aperture;
delivering a treatment composition to said patient via said at least one lateral aperture;
performing a secondary procedure utilizing said at least one distal aperture; and
delivering energy to said patient via said cannula. - View Dependent Claims (45, 46, 47)
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48. A cannula comprising:
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an elongate shaft comprising a distal region and a proximal region and defining a lumen therebetween and further comprising a wall defining at least one lateral aperture therethrough in communication with said lumen and a distal end defining at least one distal aperture in communication with said lumen; and
a hub associated with said proximal region, said hub comprising at least one marker;
wherein said distal region comprises an electrically exposed and conductive distal tip and wherein an outer surface of said cannula between said distal tip and said proximal region is non-conductive and wherein said lateral aperture is defined by said distal tip.
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Specification