Senorx, Inc.

Endovascular, Inc.

C. R. Bard, Inc.

Therox, Inc.

Esc Medical Systems Ltd.

Neuro Navigational Corporation

Derek J Daw

James Huntington Dabney

George M Acosta

Paul Lubock

Donald M Cohen

Thomas G Hacker

Angela Kay Jensen

George F Kick

John R Brustad

Richard L Quick

Frank R Louw

Martin Victor Shabaz

John Merritt

Adib G Daoud

Mark S Buhr

Lloyd H Malchow

William Robert Patterson

Vincent Divino

Paul J Zalesky

Stephen E Myrick

Jeffrey L Creech

Gregory P Watson

A screen providing a graphical user interface (GUI) for a tissue biopsy system includes a circular area and a plurality of GUI areas of variable size located in the circular area. The plurality of GUI areas includes a first GUI area, a second GUI area, and a third GUI area. The first GUI area is configured to represent a first region of the target site from which at least one tissue specimen has been separated from tissue at the target site by a tissue cutting member. The second GUI area is configured to represent a second region from which the tissue cutting member may separate one or more additional tissue specimens from tissue at the target site. The third GUI area is configured to represent a third region in which the tissue cutting member is deployed to separate a tissue specimen from tissue at the target site.

Graphical user interface for tissue biopsy system

A method of detecting a leakage current in an electrosurgical system operating at a high frequency includes: coupling an RF generator to a pair of RF output leads via an electrical interface, the RF generator having an operating frequency; inducing a test signal at an output of the electrical interface, the test signal having a test signal frequency that is less than the operating frequency; and monitoring for a presence of an induced common mode current that would indicate the presence of leakage current.

Electrosurgical medical system and method

A system for controlling an electrosurgical electrode of a medical device includes a hand-held electrosurgical electrode having cutting probe. A return electrode is positioned remote from the electrosurgical electrode. An RF generator is coupled to the electrosurgical electrode and to the return electrode, and includes an RF amplifier. The RF generator generates an RF signal at a first RF power level for tissue cutting and generates the RF signal at a second RF power level greater than the first RF power level to initiate tissue cutting. A sensor monitors an electrical characteristic associated with the electrosurgical electrode. A controller coupled to the RF amplifier maintains a desired RF power output and a desired RF duty cycle at the first RF power level by adjusting a DC input voltage applied to an output stage of the RF amplifier based on the monitored electrical characteristic associated with the electrosurgical electrode.

A method for controlling an electrosurgical electrode of a medical device includes providing an electrosurgical tissue cutting electrode having an arcuate electrode portion; delivering energy from an RF generator to the electrosurgical electrode, said RF generator including an RF amplifier; monitoring an electrical characteristic associated with said electrosurgical electrode; and establishing a desired RF power output and a desired RF duty cycle at said RF generator by adjusting DC input voltage applied to an output stage of said RF amplifier based on said monitoring to effect tissue cutting by the arcuate electrode portion.

Biopsy system console

A method for mitigating leakage in an RF electrosurgical generator includes delivering an RF signal from an RF electrosurgical generator to an electrosurgical electrode by way of a patient box; providing a balanced and symmetrical shielded transmission line coupling said electrosurgical generator disposed in a first housing to said patient box disposed in a second, different housing; providing a common mode choke in said patient box, said common mode choke including an output winding and a return winding, said output winding and said return winding spaced apart and in parallel to maintain a desired impedance, said output winding comprising a wire carrying said RF signal as an output signal and said return winding carrying a return signal from a return electrode; and directing a common mode signal from said RF signal to said common mode choke thereby blocking said common mode signal.

A medical device system and method provide an RF electrosurgical generator coupled to an electrosurgical electrode via a patient box disposed in close proximity to the patient. An RF signal is delivered from the generator to the patient box where signal power is increased and the RF signal delivered to the electrosurgical electrode. The patient box is coupled to the electrosurgical electrode by a short cable capable of carrying an HV, high frequency 5 MHz signal without leakage. An electrical characteristic associated with the electrosurgical electrode is monitored and a desired RF power output and duty cycle maintained by adjusting DC input voltage applied to an RF amplifier, responsive to the monitoring. The system determines when the electrosurgical cutting electrode has started cutting and switches from a start mode to a run mode having a different RF duty cycle and a reduced RF power output controlled by a servo system.

A structurally integrated biopsy system includes a movable base having wheels to facilitate movement of the structurally integrated biopsy system. On the movable based there is mounted a tissue removal system, an ultrasound imaging system, and a controller. The tissue removal system includes a probe connector configured to connect to a tissue removal probe. The ultrasound imaging system is configured to generate an ultrasound image of a body region of a patient, and has an image display system having an image display screen to display ultrasound images taken by the ultrasound imaging system. The controller is configured to be in communication with each of the tissue removal system and the ultrasound imaging system to both provide control information for the ultrasound imaging system and provide control information for the tissue removal system in the structurally integrated biopsy system.

Biopsy system with integrated imaging

A graphical user interface is disclosed for a tissue biopsy system having a tissue cutting member adapted for cutting one or more tissue specimens from tissue at a target site within a patient. The graphical user interface includes a first GUI area representing a first region of the target site from which the tissue cutting member has separated one or more tissue specimens. The graphical user interface further includes a second GUI area, visually distinguishable from the first GUI area, representing a second region from which the tissue cutting member may separate one or more additional tissue specimens from tissue at the target site.

A biopsy system is disclosed that has a tissue removal system, an imaging system, an image display system and a common input console for these systems. The tissue removal system can have a mechanical tissue cutting blade or an electrosurgical cutting element and the tissue removal system is capable of handling both tissue cutting configurations. The imaging system is preferably an ultrasound imaging system and the image display system has a video screen for displaying diagnostic ultrasound images from an ultrasound probe. The common input console preferably has a touch screen display and a keyboard to facilitate operation of the tissue removal system, the ultrasound imaging system and the image display system from the same console.

Growing community of inventors

Huntington Beach, CA, United States of America

Derek J Daw