Abstract: A tissue removal system for extracting a tissue specimen from a patient and a related method are disclosed. The system has a flexible container with an opening associated with a proximal end, and a distal end. The system also has a plurality of wires removably coupled to an interior of the flexible container in a pre-collection configuration wherein the plurality of wires form a receiving space for receiving the tissue specimen and wherein the plurality of wires are positioned in a pattern. The pattern is selected to divide the tissue specimen into at least four pieces in response to at least one pulling force on the plurality of wires.
Type:
Grant
Filed:
November 14, 2016
Date of Patent:
February 23, 2021
Assignee:
Eximis Surgical, LLC
Inventors:
Kristin D. Johnson, William N. Gregg, Dirk Johnson
Abstract: A tissue segmentation device, controller, and methods therefore are disclosed. The device has an active electrode, a return electrode, a mechanical force application mechanism, voltage and current sensors, and a controller. The controller is configured to control a power output of the segmentation device. The controller has a processing component, responsive to the sensors, configured to execute the following: (a) derive a power factor of power applied to the at least one electrode; and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the at least one electrode. IF (PF?0) and ((Vrms/Irms)?T), THEN the circuit status is “open”. IF (PF?0) and ((Vrms/Irms)<T), THEN the circuit status is “short”. PF is the power factor. T is a threshold value.
Type:
Grant
Filed:
September 15, 2016
Date of Patent:
May 16, 2017
Assignee:
EXIMIS SURGICAL, LLC
Inventors:
James A. Gilbert, Steven C. Rupp, William N. Gregg, Kristin D. Johnson, Dirk Johnson
Abstract: A tissue removal system for extracting a tissue specimen from a patient is disclosed. The system has a retrieval bag, a first electrode, and a return electrode. The retrieval bag has a flexible container with an opening. The first electrode is coupled to an interior of the flexible container, and has a conductive wire with an exposure area, a first load-bearing area, a coating having a first active electrode surface area, and an impedance that is greater than an impedance of the conductive wire. The first active electrode surface area is less than the exposure area. The coating is configured to degrade during application of electrosurgical power and wherein the degradation expands the first active electrode surface area during the application of the electrosurgical power.
Type:
Grant
Filed:
July 21, 2015
Date of Patent:
December 20, 2016
Assignee:
EXIMIS SURGICAL, LLC
Inventors:
Kristin D. Johnson, William N. Gregg, Dirk Johnson