Surgical instrument
First Claim
1. A device comprising an electrosurgical system for morcellating tissue within a body cavity of a patient, the system comprising:
- an electrosurgical generator,a morcellating device, anda tissue-pulling device,the morcellating device comprising;
a tube having a distal end,a bipolar electrosurgical electrode assembly including first and second electrodes located at the distal end of the tube and separated one from the other by an insulation member, andfirst and second connections by which the first and second electrodes are connected to the electrosurgical generator,the tissue-pulling device being locatable within the tube, and including a third connection by which the tissue-pulling device is connected to the electrosurgical generator so that the tissue-pulling device is an additional electrode,the electrosurgical generator supplying an electrosurgical cutting voltage to the electrode assembly, such that when the tissue-pulling device is moved to pull tissue against the distal end of the tube, the electrosurgical cutting voltage supplied to the bipolar electrosurgical electrode assembly and/or tissue pulling device severs the tissue to form a core of tissue within the tube, which can then be further moved in order to remove the severed tissue from the body cavity of the patient.
1 Assignment
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Accused Products
Abstract
A device for morcellating tissue within a body cavity of a patient comprises a stationary tube having a distal end portion, and a bipolar electrosurgical electrode assembly located at the distal end of the tube. The electrosurgical electrode assembly comprises first and second electrodes separated by an insulation member, the bipolar electrosurgical electrode assembly extending around the circumference of the distal edge of the tube. When an electrosurgical cutting voltage is applied to the electrode assembly, and relative movement is initiated between the tube and the tissue, a core of severed tissue is formed within the tube such that it can be removed from the body cavity of the patient. A tissue-pulling device such as a jaw assembly can be employed to pull tissue against the distal end of the tube.
1250 Citations
26 Claims
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1. A device comprising an electrosurgical system for morcellating tissue within a body cavity of a patient, the system comprising:
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an electrosurgical generator, a morcellating device, and a tissue-pulling device, the morcellating device comprising; a tube having a distal end, a bipolar electrosurgical electrode assembly including first and second electrodes located at the distal end of the tube and separated one from the other by an insulation member, and first and second connections by which the first and second electrodes are connected to the electrosurgical generator, the tissue-pulling device being locatable within the tube, and including a third connection by which the tissue-pulling device is connected to the electrosurgical generator so that the tissue-pulling device is an additional electrode, the electrosurgical generator supplying an electrosurgical cutting voltage to the electrode assembly, such that when the tissue-pulling device is moved to pull tissue against the distal end of the tube, the electrosurgical cutting voltage supplied to the bipolar electrosurgical electrode assembly and/or tissue pulling device severs the tissue to form a core of tissue within the tube, which can then be further moved in order to remove the severed tissue from the body cavity of the patient. - 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)
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26. A device comprising an electrosurgical system for morcellating tissue within a body cavity of a patient, the morcellating device comprising:
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an electrosurgical generator, a morcellating device, and a tissue-pulling device, the morcellating device comprising; a stationary tube having a distal end, a bipolar electrode assembly including first and second electrodes located at the distal end of the tube, the first electrode being an active electrode, and the second electrode being a return electrode, an insulation member positioned so as to separate the first and second electrodes from one another, and first and second cables for connecting the first and second electrodes to first and second poles, respectively, of the electrosurgical generator, the tissue-pulling device being locatable within the tube and including; a pair of jaw members movable between open and closed positions, and a third cable for connecting the jaw members to the first or second pole of the electrosurgical generator so that the jaw members are, together, an additional, third electrode, wherein, when an electrosurgical cutting voltage is applied to the electrode assembly and/or tissue-pulling device, the tissue-pulling device can be moved to pull tissue against the distal end of the tube so that the first, second and/or third electrodes sever the tissue to form a core of severed tissue within the tube, and further moved to remove the severed tissue from the body cavity of the patient.
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Specification