Emergency hemostasis device utilizing energy
First Claim
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1. An apparatus for substantially achieving hemostasis by tissue ablation, comprising:
- a base member comprised of a porous layer;
an electrode carrier attached to a surface of the base member, the electrode carrier including one or more bipolar electrodes that are configured to connect to a source of radio frequency energy;
a vacuum line included within the porous layer of the base member and configured to connect to a vacuum source, wherein the porous layer is configured to enable the vacuum line to draw tissue towards the bipolar electrodes during tissue ablation; and
a controller electrically coupled to the electrode carrier and configured to control the delivery of radio frequency energy to the one or more bipolar electrodes such that tissue in contact with the electrode carrier can be ablated to a desired depth of destruction to achieve substantial hemostasis.
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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.
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Citations
25 Claims
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1. An apparatus for substantially achieving hemostasis by tissue ablation, comprising:
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a base member comprised of a porous layer; an electrode carrier attached to a surface of the base member, the electrode carrier including one or more bipolar electrodes that are configured to connect to a source of radio frequency energy; a vacuum line included within the porous layer of the base member and configured to connect to a vacuum source, wherein the porous layer is configured to enable the vacuum line to draw tissue towards the bipolar electrodes during tissue ablation; and a controller electrically coupled to the electrode carrier and configured to control the delivery of radio frequency energy to the one or more bipolar electrodes such that tissue in contact with the electrode carrier can be ablated to a desired depth of destruction to achieve substantial hemostasis. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for substantially achieving hemostasis by tissue ablation, comprising:
- a hemostasis device including;
a base member comprised of a porous layer; an electrode carrier attached to a surface of the base member, the electrode carrier including one or more bipolar electrodes, the one or more bipolar electrodes configured to connect to a source of radio frequency energy; a vacuum line provided within the porous layer of the base member and configured to connect to a vacuum source, wherein the porous layer is configured to draw tissue towards the bipolar electrodes during tissue ablation; a source of radio frequency energy electrically coupled to the one or more bipolar electrodes; and a controller to control the delivery of radio frequency energy from the source of radio frequency energy to the one or more bipolar electrodes such that tissue can be ablated to a desired depth of destruction to achieve substantial hemostasis. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
- a hemostasis device including;
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17. A method for blood coagulation, comprising:
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positioning an electrode carrier of a hemostasis device in contact with bleeding tissue, the hemostasis device including; a base member comprised of a porous layer, the electrode carrier attached to a first surface of the porous layer of the base member, the electrode carrier including one or more bipolar electrodes connected to a source of radio frequency energy, and a vacuum line included within the porous layer of the base member and coupled to a vacuum source; activating the vacuum source to draw the bleeding tissue into closer contact with the porous layer and thereby the electrode carrier and to draw moisture released from the tissue during ablation away from the one or more bipolar electrodes; activating the source of radio frequency energy and delivering radio frequency energy to the one or more bipolar electrodes and ablating the tissue in contact with the one or more bipolar electrodes; and ceasing delivery of the radio frequency energy upon reaching a desired depth of destruction of the tissue;
wherein hemostasis is substantially achieved in a region of the ablation. - View Dependent Claims (18)
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19. An apparatus for achieving hemostasis by tissue ablation, comprising:
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a base member shaped as a glove configured to be worn by a user and comprising a porous layer including a vacuum line couplable to a vacuum source to enable tissue to be drawn to the porous layer during ablation and an insulating layer for protecting the user during ablation; an electrode carrier attached to the porous layer of the base member, the electrode carrier including one or more bipolar electrodes that are configured to connect to a source of radio frequency energy during ablation; and a controller electrically coupled to the electrode carrier and configured to control the delivery of radio frequency energy to the one or more bipolar electrodes such that tissue in contact with the electrode carrier can be ablated to a desired depth of destruction to achieve substantial hemostasis. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification