CHELSEA BRIELLE SHIELDS, MA
Marriage and Family Therapists at Westgate Dr, Portland, OR

License number
Oregon R4768
Category
Marriage and Family Therapists
Type
Marriage & Family Therapist
Address
Address 2
5319 SW Westgate Dr STE 113, Portland, OR 97221
1 Jefferson Pkwy APT 248, West Linn, OR 97035
Phone
(503) 908-4655

Professional information

Chelsea Shields Photo 1

Vessel Sealer And Divider For Large Tissue Structures

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.


Chelsea Shields Photo 2

Incorporating Rapid Cooling In Tissue Fusion Heating Processes

US Patent:
2010020, Aug 12, 2010
Filed:
Apr 23, 2010
Appl. No.:
12/766476
Inventors:
Troy J. Chapman - Denver CO, US
Curt D. Hammill - Erie CO, US
Chelsea Shields - Portland OR, US
David A. Schechter - Longmont CO, US
Ronald J. Podhajsky - Boulder CO, US
International Classification:
A61B 18/14
US Classification:
606 51
Abstract:
An electrode sealing assembly for use with an electrosurgical instrument for sealing tissue includes first and second jaw members which are movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue. The jaw members include electrically conductive sealing plates designed to selectively transmit electrosurgical energy to tissue disposed between the sealing plates. The jaw members also include a thermoelectric cooling plate having a first surface in direct contact with an outer surface of the sealing plate. The thermoelectric cooling plate includes first and second electrical connections on opposite sides of the jaw member. The first connection is configured to selectively transmit a first electrical potential and the second connection is configured to selectively transmit a second electrical potential such that heat generated by the sealing plates is transferred away from the tissue via the thermoelectric cooling plate.


Chelsea Shields Photo 3

Incorporating Rapid Cooling In Tissue Fusion Heating Processes

US Patent:
7708735, May 4, 2010
Filed:
Jul 19, 2005
Appl. No.:
11/184338
Inventors:
Troy J. Chapman - Denver CO, US
Curt D. Hammill - Erie CO, US
Chelsea Shields - Portland OR, US
David A. Schechter - Longmont CO, US
Ronald J. Podhajsky - Boulder CO, US
Assignee:
Covidien AG - Neuhausen am Rheinfall
International Classification:
A61B 18/18
US Classification:
606 51, 606 52
Abstract:
An electrode sealing assembly for use with an electrosurgical instrument for sealing tissue includes first and second jaw members which are movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue. The jaw members include electrically conductive sealing plates designed to selectively transmit electrosurgical energy to tissue disposed between the sealing plates. The jaw members also include a thermoelectric cooling plate having a first surface in direct contact with an outer surface of the sealing plate. The thermoelectric cooling plate includes first and second electrical connections on opposite sides of the jaw member. The first connection is configured to selectively transmit a first electrical potential and the second connection is configured to selectively transmit a second electrical potential such that heat generated by the sealing plates is transferred away from the tissue via the thermoelectric cooling plate.


Chelsea Shields Photo 4

Tissue Sealer And End Effector Assembly And Method Of Manufacturing Same

US Patent:
2009008, Mar 26, 2009
Filed:
Sep 19, 2008
Appl. No.:
12/234021
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
International Classification:
A61B 18/14
US Classification:
606 51
Abstract:
A bipolar forceps for sealing tissue includes at least one shaft having an end effector assembly disposed at a distal end thereof. The end effector assembly includes a pair of first and second opposing jaw members movable 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 cooperate to grasp tissue therebetween. At least the first jaw member includes proximal and distal ends which define a cavity along a length thereof which houses an insulative member therein. The insulative member includes an electrically conductive sealing surface mounted thereto which resides in substantial opposition with a second electrically conductive sealing surface disposed on the second jaw member. One end of the first jaw member which defines the cavity extends a fixed distance toward the second jaw member to form a gap between electrically conductive surfaces when the jaw members are closed to grasp tissue.


Chelsea Shields Photo 5

Electrosurgical Instrument Which Reduces Thermal Damage To Adjacent Tissue

US Patent:
7753909, Jul 13, 2010
Filed:
Apr 29, 2004
Appl. No.:
10/552666
Inventors:
Troy J. Chapman - Denver CO, US
Chelsea Shields - Portland OR, US
David A. Schechter - Longmont CO, US
Assignee:
Covidien AG - Neuhausen am Rheinfall
International Classification:
A61B 18/18
US Classification:
606 51, 606 49, 606 50, 606 52
Abstract:
An electrode sealing assembly for use in combination with an electrosurgical instrument includes first and second jaw members which are movable from a first, spaced-apart position to a second position to grasp tissue. Each of the jaw members includes an insulative housing, a thermally conductive, electrically non-conductive material and a sealing plate. The insulative housing has a series of electromechanical interfaces which mate with a corresponding series of electromechanical interfaces which extend from the sealing plate such that the sealing plates are a capable of conducting bipolar energy through tissue held between the jaw members. The thermally conductive, electrically nonconductive material is configured to encapsulate and secure the sealing plate to the insulative housing.


Chelsea Shields Photo 6

Method And System For Controlling Output Of Rf Medical Generator

US Patent:
2012015, Jun 14, 2012
Filed:
Jan 31, 2012
Appl. No.:
13/362816
Inventors:
Steven P. Buysse - Niwot 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. Schmaltz - 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 - Atascadero CA, US
Chelsea Shields - Portland OR, US
Philip M. Tetzlaff - Austin TX, US
Jeremy S. James - Westminster CO, US
International Classification:
A61B 18/18
US Classification:
606 34
Abstract:
A system for monitoring and/or controlling tissue modification during an electrosurgical procedure is disclosed. The system includes a sensor module and a control module operatively coupled to the sensor module and configured to control the delivery of electrosurgical energy to tissue based on information provided by the sensor module. The sensor module further includes at least one optical source configured to generate light and at least one optical detector configured to analyze a portion of the light transmitted through, and/or reflected from, the tissue.


Chelsea Shields Photo 7

System And Method For Tissue Sealing

US Patent:
7972328, Jul 5, 2011
Filed:
Jan 24, 2007
Appl. No.:
11/657170
Inventors:
Robert H. Wham - Boulder CO, US
Rebecca Coulson - Lyons CO, US
Kari Leidich - Golden CO, US
David A. Schechter - Montara CA, US
Chelsea Shields - Portland OR, US
Thomas A. Sturm - Erie CO, US
Craig Weinberg - Denver CO, US
Assignee:
Covidien AG - Neuhausen am Rheinfall
International Classification:
A61B 18/18
US Classification:
606 34, 606 51, 606 52, 606 32
Abstract:
An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.


Chelsea Shields Photo 8

Method And System For Controlling Output Of Rf Medical Generator

US Patent:
2012013, May 24, 2012
Filed:
Jan 31, 2012
Appl. No.:
13/362548
Inventors:
Steven P. Buysse - Niwot 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. Schmaltz - 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 - Atascadero CA, US
Chelsea Shields - Portland OR, US
Philip M. Tetzlaff - Austin TX, US
Jeremy S. James - Westminster CO, US
International Classification:
A61B 18/12, A61B 6/00
US Classification:
600476, 606 34
Abstract:
A control system for controlling the output of an electrosurgical generator is disclosed. The control system includes a control module configured to receive an optical signal from a surgical site, the optical signal being related to an optical tissue characteristic, the control module configured to process the optical signal using a closed loop control loop and provide continual control of the output of the electrosurgical generator in response to the optical tissue characteristic.


Chelsea Shields Photo 9

Method Of Manufacturing End Effector Assembly For Sealing Tissue

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.


Chelsea Shields Photo 10

Electrically Conductive/Insulative Over Shoe For Tissue Fusion

US Patent:
2009004, Feb 19, 2009
Filed:
Sep 18, 2008
Appl. No.:
12/212780
Inventors:
Chelsea Shields - Portland OR, US
Edward C. Meagher - Greenlawn NY, US
International Classification:
A61B 18/14
US Classification:
606 51, 606 49
Abstract:
An over shoe for use with electrosurgical instruments having a pair of juxtaposed jaw members pivotably associated with one another, at least one of which includes an electrically conductive surface disposed thereon which is in electrical engagement with an electrosurgical energy source. According to one aspect of the present disclosure, the over shoe includes a tissue contacting wall configured and dimensioned to selectively and substantially overlie the electrically conductive surface of the electrosurgical instrument. The tissue contacting wall is fabricated from a non-conductive material and includes a plurality of apertures formed therethrough. In another embodiment, the tissue contacting wall is electrically conductive and is configured for selective engagement atop on of the jaw members.