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US 8,523,856 B2Granted
Hemostasis device
AssigneeCytyc Corporation
InventorsRussel M. Sampson, Eugene V. Skalnyi
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Abstract
A method and system for achieving hemostasis (the stoppage of bleeding) is described. RF (radio frequency) energy is used to ablate the surface of tissue to stop bleeding. The depth of destruction of the tissue can be controlled so as to desiccate and coagulate the tissue. In one implementation, an electrode carrier including bipolar electrodes is applied to the tissue, and RF energy transmitted through the bipolar electrodes to ablate the tissue. A layer of desiccated tissue can be created as well as coagulation of the tissue to achieve hemostasis.
Claims8
A method for blood coagulation, comprising:
- positioning a hemostasis device in contact with bleeding tissue, the hemostasis device including a porous layer, a vacuum line and an electrode, wherein the vacuum line is included within the porous layer, and wherein the vacuum line is operably coupled to a vacuum source;
- activating the vacuum source to draw the bleeding tissue into contact with the porous layer and the electrode and to draw moisture released from the tissue during ablation away from the electrode;
- activating a source of energy and delivering energy to the electrode and ablating the tissue in contact with electrode;
- and
- ceasing delivery of the energy upon reaching a desired depth of destruction of the tissue;
- wherein hemostasis is substantially achieved in a region of the ablation.
3 more elements
Dependencies are inferred from the claim text.