Covidien Ag

Covidien LP

Sherwood Services Ag

Eximis Surgical, LLC

Tyco Healthcare Group LP

Coviden Ag

Cardiac Pacemakers, Inc.

Kristin D Johnson

Gary M Couture

Michael C Moses

Steven Paul Buysse

Sean T Dycus

Philip Mark Tetzlaff

Robert M Sharp

Gene H Arts

Paul Ray Romero

Ronald J Podhajsky

David Abraham Schechter

William N Gregg

Duane E Kerr

Dale Francis Schmaltz

Jason A Case

Kate Ryland Lawes

Chris J Ehr

James S Cunningham

James A Gilbert

Craig Weinberg

Steven C Rupp

Joe Don Sartor

David M Garrison

Robert H Wham

Kyle R Rick

Michael J Lands

Christopher T Rusin

Kathy E Rooks

Darion R Peterson

Jeffrey R Unger

Dwight Meglan

Jeff Unger

Lap P Nguyen

Christopher A Valentine

Dirk Johnson

Carolyn H Mihaichuk

David Hixson

Randel Alven Frazier

Scott F Alexander

Roger F Smith

Mika N Sinanan

Benjamin M Corum

S Wade Lukianow

Kari L Riegner

Mark Alderton

Sally D Jandrall

Peng Zheng

Jeffrey M Roy

Arnold V DeCarlo

Rebecca J Coulson

Chelsea Shields

Jenifer Serafin Kennedy

Stephen Wade Lukianow

Kevin J Seifert

Michael R Warzecha

Jeremey Scott James

Carlo Balleria

Joseph A Paulus

Joseph E Hendricks

Daniel L Trimberger

Mathew E Mitchell

Jeremy Scott James

James Steven Cunningham

Dave A Schechter

Donna Ford-Serbu

Mark Philip Tetzlaff

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 has a processing component, configured to 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 a power factor of power applied to the electrosurgical device. T is a threshold value.

Electrosurgical device and methods

A method and device for detecting leaks of a containment barrier. The method may comprise placing the barrier in contact with one or more volumes of fluid such that the one or more volumes of fluid is in contact with a first surface and a second surface of the containment barrier, then placing a first electrode in contact with a first volume of fluid within in a first area defined by the first surface of the containment barrier. The method may then comprise placing a second electrode in contact with a second volume of fluid in a second area defined by the second surface of the containment barrier, measuring electrical conductivity between the first and second electrodes; and determining a presence of a leak in the containment barrier based on a calculation using properties of the one or more volumes of fluid, the containment barrier, and the measured electrical conductivity.

Tissue specimen removal device, system and method

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 has a processing component, configured to assign a circuit status to a circuit comprising the at least one electrode. IF (PF&#x2248;0) and ((Vrms/Irms)&#x2265;T), THEN the circuit status is 'open'. IF (PF&#x2248;0) and ((Vrms/Irms)&#x3c;T), THEN the circuit status is 'short'. PF is a power factor of power applied to the electrosurgical device. T is a threshold value.

A surgical port assembly for use with surgical instruments includes a body including an exterior surface and an interior space defined by an interior surface of the body. The surgical port assembly includes a control interface including a plurality of drive members coupled to the body and controllable to apply a force to a different portion of a shaft of an surgical instrument, when the shaft is disposed within the interior space, to move a distal portion of the surgical instrument to a desired position within a body cavity.

Methods and apparatus for controlling surgical instruments using a port assembly

An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes a pair of spaced apart electrically conductive tissue contacting surfaces which each have an insulator disposed therebetween, the conductive surfaces are connected to an electrosurgical energy source. The first jaw member includes an electrically conductive cutting element disposed within the insulator which extends towards the second tissue contacting surface to create a gap therebetween. The cutting element is inactive during the sealing process while the two pairs of electrically conductive surfaces are activated to seal tissue. During the cutting process, the cutting element is energized to a first potential and at least one electrically conductive tissue contacting surface is energized to a different potential to effect a tissue cut through the tissue held between the jaw members along the already formed tissue seal.

Vessel sealing instrument with cutting mechanism

A medical device for treating and analyzing tissue includes a plasma applicator having a housing. The housing includes a substantially tubular shape and defines a lumen therethrough. The lumen is in fluid communication with an ionizable media source configured to supply ionizable media thereto. The applicator also includes one or more electrodes coupled to the housing. The electrodes are adapted to couple to a power source configured to energize the electrodes to ignite the ionizable media to form a plasma plume for treating tissue. The device also includes an effluent-collection attachment coupled to the plasma applicator. The effluent-collection attachment is configured to collect a portion of a plasma effluent.

System and method for sensing tissue characteristics

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.

Large volume tissue reduction and removal system and method

An end effector assembly is provided. The end effector assembly includes a pair of first and second jaw members including respective seal plates adapted to connect to a source of electrosurgical energy. The first and second jaw members operable in a first bipolar mode of operation for treating tissue and a second bipolar mode of operation for separating tissue. A dissector translatable through one of the first and second jaw members is in electrical communication with one of the seal plates of the first and second jaw members and activatable in the second bipolar mode of operation for separating tissue when the first and second jaw members are in one of the open and clamping position and tissue is adjacent thereto.

Electrosurgical instrument

A controller for an electrosurgical device and related methods and devices are disclosed. The controller has a processing component to: (a) derive a power factor of power applied to the electrosurgical device; and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the electrosurgical device. IF (PF&#x2248;0) and ((Vrms/Irms)&#x2265;T), THEN the circuit status is 'open'. IF (PF&#x2248;0) and ((Vrms/Irms)&#x3c;T), THEN the circuit status is 'short'. PF is the power factor. Vrms is the root mean square of a voltage associated with the power applied to the at electrosurgical device. Irms is the root mean square of a current associated with the power applied to the electrosurgical device. T is a threshold value.

Vessel sealing instrument with electrical cutting mechanism

A removable electrode assembly for use in combination with a forceps having opposing end effectors and a handle for effecting movement of the end effectors relative to one another. The electrode assembly includes a housing which is removably engageable with the forceps and a pair of electrodes which are attachable to a distal end of the housing. The electrodes are removably engageable with the end effectors of the forceps such that the electrodes reside in opposing relation relative to one another. The electrode assembly also includes a cover plate which is removably attachable to the housing and at least one stop member for controlling the distance between the opposing electrodes. The stop member is selectively engageable with the electrodes.

Vessel sealing forceps

The present disclosure relates to electrosurgical instruments for use in sealing various tissues. The instrument includes a housing having a shaft attached thereto and an end effector assembly attached to a distal end of the shaft, wherein the end effector assembly includes first and second jaw members attached thereto. The jaw members are movable relative to one another from a first position for approximating tissue to at least one additional position for grasping tissue therebetween. The jaw members have an elastomeric material disposed on an inner facing tissue contacting surface thereof with the elastomeric materials including an electrode disposed therein. The electrodes are offset a distance X relative to one another such that when the jaw members are closed about the tissue and when the electrodes are activated, electrosurgical energy flows through the tissue in a generally coplanar manner relative to the tissue contacting surfaces.

Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion

A system and method of ultrasound imaging, the system including a laparoscopic surgical instrument including at least one ultrasound transducer, and a processor adapted to receive acoustic data from the ultrasound transducer and process the acoustic data from the ultrasound transducer to produce a graphical representation of the acoustic data, the graphical representation depicting echoic attributes of tissue substantially axially aligned with a transmission path of the at least one ultrasound transducer, and the distance of at least one tissue type having different echoic attributes from surrounding tissue form a distal tip of the laparoscopic surgical instrument.

System and method for detecting critical structures using ultrasound

Growing community of inventors

Louisville, CO, United States of America

Kristin D Johnson