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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0072312 (2013-11-05) |
등록번호 | US-9375270 (2016-06-28) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 1051 |
An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine
An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.
1. A system for electrosurgically sealing tissue, comprising: a surgical instrument adapted to position a first electrode and a second electrode about tissue forming a gap therebetween; andan electrosurgical generator electrically coupled to the first and second electrodes of the surgical instrument
1. A system for electrosurgically sealing tissue, comprising: a surgical instrument adapted to position a first electrode and a second electrode about tissue forming a gap therebetween; andan electrosurgical generator electrically coupled to the first and second electrodes of the surgical instrument and adapted supply RF energy to the first and second electrodes, wherein the electrosurgical generator supplies a first pulse of RF energy to the first and second electrodes forming a first electrical potential therebetween and at least one subsequent pulse of RF energy to the first and second electrodes forming at least one subsequent electrical potential therebetween,wherein the electrosurgical generator is configured to regulate the at least one subsequent pulse of RF energy to decrease the subsequent electrical potential as the gap between the first and second electrodes is decreased. 2. The system according to claim 1, wherein an amplitude of one of the at least one subsequent pulses is decreased to compensate for thermally-induced shrinkage of tissue. 3. The system according to claim 1, wherein the electrosurgical generator is configured to supply a plurality of subsequent pulses of RF energy to the first and second electrodes while controllably decreasing an amplitude of each individual one of the plurality of subsequent pulses of RF energy. 4. The system in according to claim 1, wherein the electrosurgical generator is configured to controllably decrease an amplitude of one of the at least one subsequent pulses of RF energy to compensate for a decrease in the gap between the first and second electrodes. 5. A system for electrosurgically sealing tissue, comprising: a surgical instrument adapted to position a first electrode and a second electrode about tissue forming a gap therebetween; andan electrosurgical generator, electrically coupled to the first and second electrodes of the surgical instrument, the electrosurgical generator including: a controller configured to apply a first pulse of RF energy to the first and second electrodes forming an electrical potential therebetween and the controller configured to apply at least one subsequent pulse of RF energy to the first and second electrodes forming a subsequent electrical potential therebetween;wherein the controller regulates the at least one subsequent pulse of RF energy to decreases the subsequent electrical potential as the gap between the first and second electrodes is decreased. 6. The system according to claim 5, wherein the controller decreases an amplitude of one of the at least one subsequent pulses of RF energy to compensate for thermally-induced shrinkage of the tissue. 7. The system according to claim 5, wherein the controller applies a plurality of subsequent pulses of RF energy to the first and second electrodes while controllably decreasing an amplitude of each individual one of the plurality of subsequent pulses of RF energy. 8. The system according to claim 5, wherein an amplitude of one of the at least one subsequent pulses of RF energy is controllably decreased to compensate for a decrease in gap between the first and second electrodes due to a thermally-induced shrinkage of tissue. 9. The system according to claim 5, wherein the controller decreases an amplitude of one of the at least one subsequent pulses of RF energy to compensate for a decrease in the gap between the first and second electrode.
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