Jeremy James

US Patent:

D535027, Jan 9, 2007

Filed:

Oct 6, 2004

Appl. No.:

29/214671

Inventors:

Jeremy S. James - Westminster CO, US
Jeff Unger - Superior CO, US
Chelsea Shields - Boulder CO, US
Paul R. Romero - Loveland CO, US
David Hixson - Longmont CO, US

Assignee:

Sherwood Services AG - Schaffhausen

International Classification:

2402

US Classification:

D24148, D24144, D24145, D24146

US Patent:

7766910, Aug 3, 2010

Filed:

Nov 9, 2006

Appl. No.:

11/595194

Inventors:

David Hixson - Longmont CO, US
Jeremy S. James - Westminster CO, US
Jessica Olson - Frederick CO, US
Paul R. Romero - Loveland CO, US
Chelsea Shields - Portland OR, US
Jeff Unger - Superior CO, US

Assignee:

TYCO Healthcare Group LP - Boulder CO

International Classification:

A61B 18/14

US Classification:

606 51, 606 45, 606 49, 606 50

Abstract:

An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis. A knife assembly is also included which has a movable knife bar having a generally t-shaped proximal end dimensioned to operatively engage a corresponding slot defined within the housing, the slot being dimensioned to guide the movement of the knife bar during translation thereof.

US Patent:

7877852, Feb 1, 2011

Filed:

Sep 19, 2008

Appl. No.:

12/234087

Inventors:

Jeffrey R. Unger - Longmont CO, US
Robert M. Sharp - Boulder CO, US
David W. Hixson - Longmont CO, US
Chelsea Shields - Portland OR, US
Darion Peterson - Boulder CO, US
Jeremy James - Highlands Ranch CO, US
David M. Garrison - Longmont CO, US
Michael R. Warzecha - Longmont CO, US
Edward M. Chojin - Boulder CO, US
Duane E. Kerr - Berthoud CO, US

Assignee:

TYCO Healthcare Group LP - Boulder CO

International Classification:

H01S 4/00

US Classification:

295921, 29825, 29876, 606 49, 606 50, 606 51, 606 52

Abstract:

A method for manufacturing an end effector assembly for sealing tissue includes the initial step of providing a pair of first and second jaw members each including an inwardly facing electrically conductive sealing surface. The method also includes the steps of: coating the inwardly facing electrically conductive sealing surface of one or both jaw members with an insulative material, the coating having a thickness within the range of about 0. 001 inches to about 0. 010 inches; allowing the insulative material to cure onto the inwardly facing electrically conductive sealing surface; removing a portion of the insulative material from the inwardly facing electrically conductive sealing surface to form a series of stop members arranged thereacross; and assembling the pair of first and second jaw members about a pivot such that the two inwardly facing electrically conductive sealing surfaces are substantially opposed to each other in pivotal relation relative to one another.

US Patent:

7877853, Feb 1, 2011

Filed:

Sep 19, 2008

Appl. No.:

12/234128

Inventors:

Jeffrey R. Unger - Longmont CO, US
Robert M. Sharp - Boulder CO, US
David W. Hixson - Longmont CO, US
Chelsea Shields - Portland OR, US
Darion Peterson - Boulder CO, US
Jeremy James - Highlands Ranch CO, US
David M. Garrison - Longmont CO, US
Michael R. Warzecha - Longmont CO, US
Edward M. Chojin - Boulder CO, US
Duane E. Kerr - Berthoud CO, US

Assignee:

TYCO Healthcare Group LP - Boulder CO

International Classification:

H01S 4/00

US Classification:

295921, 29825, 29874, 29876, 606 49, 606 30, 606 51

Abstract:

A method for manufacturing an end effector assembly for sealing tissue includes the initial step of providing first and second electrically conductive sealing plates. The method also includes the steps of: encasing at least one of the electrically conductive sealing plates in a substantially moldable insulative material; applying a load to the electrically conductive sealing plates; allowing the insulative material to deform to create a gap between the sealing plates between about 0. 001 inches to about 0. 010 inches; and allowing the insulative material to cure.

US Patent:

7901400, Mar 8, 2011

Filed:

Jan 27, 2005

Appl. No.:

11/044805

Inventors:

Robert H. Wham - Boulder CO, US
Chelsea Shields - Boulder CO, US
Philip M. Tetzlaff - Lafayette CO, US
Jeremy S. James - Westminster CO, US

Assignee:

Covidien AG - Neuhausen am Rheinfall

International Classification:

A61B 18/10

US Classification:

606 34, 606 42

Abstract:

A system and method are provided for controlling an electrosurgical generator generating electrosurgical energy which is delivered to a patient for performing an electrosurgical procedure for sealing tissue. The system includes a control module executable on a processor for receiving sensed data corresponding to at least one physical or electrical property related to delivery of the electrosurgical energy. The control module processes the received sensed data and controls the electrosurgical generator including generating at least one corresponding control signal in accordance with the processed sensed data for regulating electrosurgical energy output from the electrosurgical generator. The controlling the electrosurgical generator further includes regulating at least one control variable, a respective control variable of the at least one control variable corresponding to sensed data corresponding to a property of the at least one physical or electrical property to follow at least one mapping for optimizing the tissue sealing.

US Patent:

8070748, Dec 6, 2011

Filed:

Jul 9, 2010

Appl. No.:

12/833270

Inventors:

David Hixson - Longmot CO, US
Jeremy S. James - Westminster CO, US
Jessica Olson - Frederick CO, US
Paul R. Romero - Loveland CO, US
Chelsea Shields - Portland OR, US
Jeff Unger - Superior CO, US

Assignee:

TYCO Healthcare Group LP - Boulder CO

International Classification:

A61B 18/14

US Classification:

606 51, 606 45

Abstract:

An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes a longitudinal axis defined therethrough and the jaw members are adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps also includes a drive assembly which moves the jaw member relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for manipulating tissue. A movable handle is included which is rotatable about a pivot to force the drive assembly to move the jaw members between the first and second positions. The pivot is located a fixed distance above the longitudinal axis. A knife assembly is also included which has a movable knife bar having a generally t-shaped proximal end dimensioned to operatively engage a corresponding slot defined within the housing, the slot being dimensioned to guide the movement of the knife bar during translation thereof.

US Patent:

8105323, Jan 31, 2012

Filed:

Oct 24, 2006

Appl. No.:

11/585506

Inventors:

Steven P. Buysse - Longmont CO, US
Bret S. Felton - Erie CO, US
David N. Heard - Boulder CO, US
David Keppel - Longmont CO, US
Ronald J. Podhajsky - Boulder CO, US
Dale F. Shmaltz - Fort Collins CO, US
Robert H. Wham - Boulder CO, US
Edward C. Meagher - Greenlawn NY, US
Kate R. Lawes - Austin TX, US
David A. Schechter - Longmont CO, US
Chelsea Shields - Portland OR, US
Philip M. Tetzlaff - Austin TX, US
Jeremy S. James - Highlands Ranch CO, US

Assignee:

Covidien AG

International Classification:

A61B 18/14

US Classification:

606 34, 606 41

Abstract:

An electrosurgical generator is disclosed. The generator includes a microprocessor configured to generate a target impedance trajectory having at least one slope. The target impedance trajectory includes a plurality of target impedance values. The microprocessor is configured to drive tissue impedance along the target impedance trajectory by adjusting the output level to substantially match tissue impedance to a corresponding target impedance value. The microprocessor is further configured to compare tissue impedance to a threshold impedance value and adjust output of the electrosurgical generator when the tissue impedance is equal to or greater than the threshold impedance.

US Patent:

20090012520, Jan 8, 2009

Filed:

Sep 19, 2008

Appl. No.:

12/233951

Inventors:

David W. Hixson - Longmont CO, US
Jeremy James - Highlands Ranch CO, US
Jeffrey R. Unger - Longmont CO, US
Chelsea Shields - Porland OR, US

International Classification:

A61B 18/00

US Classification:

606 51

Abstract:

An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The shaft includes jaw members adapted to connect to a source of electrosurgical energy such that the jaw members are capable of conducting energy through tissue held therebetween to effect a tissue seal. The forceps include a drive assembly that moves the jaw members relative to one another from a first position to a second position for manipulating tissue. A movable handle is included that is rotatable about a pivot. A knife assembly is also included having a movable knife rod to operatively engage a knife blade, the knife rod having a first longitudinal section having a first predetermined shape, and a second longitudinal section having a second predetermined shape. The first predetermined shape is different than the second predetermined shape.