Gyrus Acmi, Inc.

Tracey Dobbs

Kester Julian Batchelor

Nikhil M Murdeshwar

Jyue Boon Lim

Tsuyoshi Hayashida

Riyad Moe

Richard James Curtis

An electrosurgical device that can be used to remove pedunculated tissue structures such as polyps and certain uterine fibroids includes bipolar surface electrodes and a bipolar snare. The device includes a probe having a proximal end and a distal end, bipolar surface electrodes adjacent to the distal end of the probe, and a bipolar snare extending distally from the distal end of the probe and including first and second snare electrodes. The bipolar surface electrodes are separated from each other by a gap and extend over a portion of the distal end of the probe. Providing both a bipolar snare and bipolar surface electrodes advantageously reduces thermal spread from occurring (compared to the use of a monopolar snare) when using the snare to excise the tissue. The bipolar surface electrodes can be used to coagulate the point of excision.

Bipolar coagulation probe and snare

A bipolar electrosurgical colpotomy device includes a colpotomy cup and a tissue containment bag. The colpotomy cup includes a first electrode located adjacent to a rim of the cup, the rim being configured to contact an internal surface of a patient's cervico-vaginal junction. The tissue containment bag includes an opening and a second electrode located adjacent to the opening. The tissue containment bag is configured to surround the patient's uterus and the opening is configured to fit over an external surface of the patient's cervico-vaginal junction. Applying a voltage potential between the first and second electrodes vaporizes tissue at the patient's cervico-vaginal junction by electrosurgical energy passing through the tissue disposed between the first and second electrodes. The tissue containment bag then can be used to remove the uterus from the patient, possibly after masticating the uterus within the bag.

Electrosurgical colpotomy device

An electrosurgical system includes a grasper and a snare that each includes electrodes. The grasper includes a first electrode that is attachable to a first output of an energy supply. The snare includes a second electrode that is attachable to a second output of the energy supply. When the first and second electrodes are coupled to the energy supply, the grasper and snare operate as a bipolar electrosurgical system. By grasping the tissue with the jaws of the grasper, the current path between the electrode on the snare and the electrode on the grasper is relatively short, and thus the system operates like a bipolar electrosurgical system. Accordingly, the applied energy can be focused to a small area, minimizing damage to surrounding tissue. In addition, energy suitable for coagulating the cut portion of the stalk of the removed tissue can be readily applied with the bipolar electrosurgical system.

Electrosurgical system having grasper and snare with switchable electrode

A bipolar electrosurgical assembly is for use in female pelvic surgical procedures. A first shaft includes a uterine manipulator, a second shaft that fits over the first shaft includes a colpotomy cup and first and second electrodes, and a third shaft can be provided over the second shaft and carries a seal for maintaining pneumoperitoneum. The colpotomy cup uses the first and second electrodes for resecting uterine tissue. Incision and resection may be performed by positioning the colpotomy cup near the cervico-vaginal junction, activating the first electrode, and moving one or both of the electrodes.

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Delano, MN, United States of America

Tracey Dobbs