Fluid-assisted medical devices, systems and methods
First Claim
1. A fluid-assisted tissue grasping device configured to treat tissue in the presence of an electrically conductive fluid provided therefrom, the device comprising:
- a first jaw and a second jaw, at least one of the jaws being movable toward the other jaw;
the first jaw comprising a first jaw tissue grasping surface and the second jaw comprising a second jaw tissue grasping surface, the tissue grasping surface of each jaw comprising an electrically insulative surface;
a first electrode and a second electrode, the first and second electrodes configured to have opposite polarity when electrically coupled to a radio frequency power source and positioned for an electrical current from the first and second electrodes to flow in tissue grasped between the tissue grasping surfaces substantially parallel to the tissue grasping surfaces;
the first jaw tissue grasping surface and the second jaw tissue grasping surface medial to the first electrode and the second electrode;
at least one fluid delivery passage;
a first fluid outlet and a second fluid outlet, at least one of the first fluid outlet and the second fluid outlet in fluid communication with the at least one fluid delivery passage; and
at least one obstruction configured to inhibit a fluid shunt from forming between the first and second electrodes.
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Accused Products
Abstract
Surgical devices, systems and methods for treating tissue. An exemplary surgical device comprises a tip portion including first and second jaws each having a tissue grasping surface, at least one of the jaws being movable toward the other jaw. The tissue grasping surface of each jaw has includes an electrically insulative surface. The device also includes first and second electrodes connectable to different terminals of an RF generator to generate electrical current flow therebetween, with each of the electrodes having an electrode surface. One of the electrode surfaces is located on one of the jaws separated from one edge of the tissue grasping surface, and the other of the electrode surfaces is located on one or the other of the jaws separated from the other edge of the tissue grasping surface. The device also includes at least one fluid passage being connectable to a fluid source.
1017 Citations
69 Claims
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1. A fluid-assisted tissue grasping device configured to treat tissue in the presence of an electrically conductive fluid provided therefrom, the device comprising:
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a first jaw and a second jaw, at least one of the jaws being movable toward the other jaw; the first jaw comprising a first jaw tissue grasping surface and the second jaw comprising a second jaw tissue grasping surface, the tissue grasping surface of each jaw comprising an electrically insulative surface; a first electrode and a second electrode, the first and second electrodes configured to have opposite polarity when electrically coupled to a radio frequency power source and positioned for an electrical current from the first and second electrodes to flow in tissue grasped between the tissue grasping surfaces substantially parallel to the tissue grasping surfaces; the first jaw tissue grasping surface and the second jaw tissue grasping surface medial to the first electrode and the second electrode; at least one fluid delivery passage; a first fluid outlet and a second fluid outlet, at least one of the first fluid outlet and the second fluid outlet in fluid communication with the at least one fluid delivery passage; and at least one obstruction configured to inhibit a fluid shunt from forming between the first and second electrodes. - 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, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A tissue grasping device comprising:
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a first jaw and a second jaw, at least one of the jaws being movable toward the other jaw; the first jaw comprising a first jaw tissue grasping surface and the second jaw comprising a second jaw tissue grasping surface, the tissue grasping surface of each jaw comprising an electrically insulative surface; a first electrode and a second electrode, the first and second electrodes configured to have opposite polarity when electrically coupled to a radio frequency power source and positioned for an electrical current from the first and second electrodes to flow in tissue grasped between the tissue grasping surfaces substantially parallel to the tissue grasping surfaces; at least one fluid delivery passage; at least one fluid outlet in fluid communication with the at least one fluid delivery passage; and at least one obstruction configured to inhibit a fluid shunt from forming between the first and second electrodes.
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Specification