Fluid-assisted medical devices, systems and methods
First Claim
1. A medical device, comprising:
- a first shaft defining a first fluid perfusion lumen there through;
a second shaft defining a second fluid perfusion lumen there through and immovably coupled to the first shaft, the second shaft being substantially parallel to the first shaft;
the first shaft including a first at least partially porous electrode; and
the second shaft including a second at least partially porous electrode, the distal end of the first at least partially porous electrode and the distal end of the second at least partially porous electrode defining a substantially co-planar surface.
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Accused Products
Abstract
Surgical devices, systems and methods for treating tissue are provided. Also provided are systems for treating tissue and methods of treating tissue. An exemplary surgical device comprises a handle (20a) having a proximal end and a distal end; a shaft extending distally beyond the distal end of the handle, the shaft having a proximal end and a distal end; an electrode tip (45), at least a portion of the electrode tip extending distally beyond the distal end of the shaft, the electrode tip extending distally beyond the distal end of the shaft comprising a spherical end surface portion (25) and a cylindrical side surface portion, the spherical end surface portion located distal to the cylindrical side surface portion and comprising at least a portion of the distal end surface of the surgical device; and a fluid passage directed to provide a fluid towards the cylindrical side portion of the electrode tip.
215 Citations
21 Claims
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1. A medical device, comprising:
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a first shaft defining a first fluid perfusion lumen there through; a second shaft defining a second fluid perfusion lumen there through and immovably coupled to the first shaft, the second shaft being substantially parallel to the first shaft; the first shaft including a first at least partially porous electrode; and the second shaft including a second at least partially porous electrode, the distal end of the first at least partially porous electrode and the distal end of the second at least partially porous electrode defining a substantially co-planar surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical device, comprising:
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a first shaft defining a first fluid perfusion lumen there through; a second shaft defining a second fluid perfusion lumen there through, the second shaft being substantially parallel to the first shaft; the first shaft including a first porous electrode extending a distance away from the distal end of the first shaft and in fluid communication with the first fluid perfusion lumen; and the second shaft including a second porous electrode extending a distance away from the distal end of the second shaft and in fluid communication with the second fluid perfusion lumen, the distal end of second electrode defining a substantially co-planar surface with the distal end of the first electrode; and a collar coupling the first shaft to the second shaft. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A medical device, comprising:
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a first rigid shaft defining a first fluid perfusion lumen there through; a second rigid shaft defining a second fluid perfusion lumen there through, the second shaft being substantially parallel to the first shaft; the first shaft including a first porous electrode extending a distance away from the distal end of the first shaft and in fluid communication with the first fluid perfusion lumen; the second shaft including a second porous electrode extending a distance away from the distal end of the second shaft and in fluid communication with the second fluid perfusion lumen, the distal end of second porous electrode defining a substantially co-planar surface with the distal end of the first porous electrode; a collar immovably coupling the first shaft to the second shaft, the collar being disposed proximal to the distal end of the first shaft and the distal end of the second shaft; and during use of the medical device, the first porous electrode and the second porous electrode are in fluid communication with each other and the first porous electrode and the second porous electrode transmit radiofrequency energy.
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21. A medical device, comprising:
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a first rigid shaft defining a first fluid perfusion lumen there through; a second rigid shaft defining a second fluid perfusion lumen there through, the second shaft being substantially parallel to the first shaft; the first shaft including a first porous electrode extending a distance away from the distal end of the first shaft and in fluid communication with the first fluid perfusion lumen, the first porous electrode defining a first blunted surface at its distal end; the second shaft including a second porous electrode extending a distance away from the distal end of the second shaft and in fluid communication with the second fluid perfusion lumen, the distal end of second electrode defining a substantially co-planar surface with the distal end of the first porous electrode, the second porous electrode defining a second blunted surface at its distal end; a collar immovably coupling the first shaft to the second shaft, the collar being disposed proximal to the distal end of the first shaft and the distal end of the second shaft, the collar defining a first passage for receiving the first shaft and a second passage for receiving the second shaft; and during use of the medical device, the first porous electrode and the second porous electrode are in fluid communication with each other and the first porous electrode and the second porous electrode transmit radiofrequency energy between each other.
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Specification