Jason J Case

US Patent:

8092515, Jan 10, 2012

Filed:

Mar 27, 2009

Appl. No.:

12/412485

Inventors:

Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US

Assignee:

TYCO Healthcare Group LP - Mansfield MA

International Classification:

A61F 2/82

US Classification:

623 115

Abstract:

The present disclosure relates to surgical systems including energized/energizable stents, and methods of using the same in the prevention of restenosis. A surgical system for treating a stenosis and/or a restenosis site s provided. The surgical system includes an electrosurgical generator; an energy transmitting conduit connectable to the electrosurgical generator; and a stent positionable in a body lumen at a site of a stenosis. The stent is fabricated from an electrically conductive material and adapted to electrically communicate with the electrosurgical generator, and the energy transmitting conduit delivers electrosurgical energy to the site of the stenosis.

US Patent:

8167875, May 1, 2012

Filed:

Jan 12, 2009

Appl. No.:

12/351935

Inventors:

Ronald J. Podhajsky - Boulder CO, US
Robert H. Wham - Boulder CO, US
Kari Riegner - Golden CO, US
Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US

Assignee:

TYCO Healthcare Group LP - Mansfield MA

International Classification:

A61B 18/14

US Classification:

606 34, 606 37, 606 38

Abstract:

A method for controlling energy applied to tissue as a function of at least one detected tissue property includes the initial step of applying energy to tissue. The method also includes the steps of initially adjusting the energy applied to tissue and determining a direction of change of the at least one detected tissue property. The method also includes the steps of subsequently adjusting the energy applied to tissue in the same direction as the initially adjusting step if the at least one detected tissue property is changing in a first direction and in the opposite direction to the initially adjusting step if the at least one detected tissue property is changing in a second direction and further adjusting the energy applied to the tissue in the same direction as the initially adjusting step if the at least one detected tissue property is changing in the second direction and in the opposite direction to the initially adjusting step if the at least one detected tissue property is changing in the first direction.

US Patent:

8211100, Jul 3, 2012

Filed:

Jan 12, 2009

Appl. No.:

12/351980

Inventors:

Ronald J. Podhajsky - Boulder CO, US
Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US
Kari Riegner - Golden CO, US
Robert H. Wham - Boulder CO, US

Assignee:

TYCO Healthcare Group LP - Mansfield MA

International Classification:

A61B 18/18

US Classification:

606 38, 606 34, 606 32

Abstract:

A method for controlling an electrosurgical waveform includes the initial steps of activating an electrosurgical generator and increasing power during a first sample window and determining a direction of change in a first average impedance during the first sample window. The method also includes the steps of performing a first adjustment of power in response to the direction of change in the first average impedance during a subsequent sample window and determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power. The method also includes performing a subsequent adjustment of power in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.

US Patent:

8226639, Jul 24, 2012

Filed:

Jun 10, 2008

Appl. No.:

12/136620

Inventors:

Ronald J. Podhajsky - Boulder CO, US
Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US

Assignee:

TYCO Healthcare Group LP - Mansfield MA

International Classification:

A61B 18/12

US Classification:

606 34

Abstract:

An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator includes sensor circuitry adapted to continuously monitor tissue impedance to generate a variance impedance curve and a microprocessor adapted to calculate a slope of a segment of the variance impedance curve. The microprocessor also calculates a bubble factor that represents the rate of formation and absorption of bubbles within tissue to determine minimum tissue impedance and maximum tissue conductance. The system further includes an electrosurgical instrument which includes one or more active electrodes adapted to apply electrosurgical energy to tissue.

US Patent:

8608793, Dec 17, 2013

Filed:

Jan 6, 2012

Appl. No.:

13/344786

Inventors:

Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US

Assignee:

Covidien LP - Mansfield MA

International Classification:

A61F 2/82

US Classification:

623 115

Abstract:

The present disclosure relates to surgical systems including energized/energizable stents, and methods of using the same in the prevention of restenosis. A surgical system for treating a stenosis and/or a restenosis site s provided. The surgical system includes an electrosurgical generator; an energy transmitting conduit connectable to the electrosurgical generator; and a stent positionable in a body lumen at a site of a stenosis. The stent is fabricated from an electrically conductive material and adapted to electrically communicate with the electrosurgical generator, and the energy transmitting conduit delivers electrosurgical energy to the site of the stenosis.

US Patent:

20120259326, Oct 11, 2012

Filed:

Apr 9, 2012

Appl. No.:

13/442831

Inventors:

Joseph D. Brannan - Erie CO, US
Jason A. Case - Longmont CO, US
Casey M. Ladtkow - Westminster CO, US
Kurt R. Smith - Boulder CO, US

Assignee:

Vivant Medical, Inc. - Boulder CO

International Classification:

A61B 18/18

US Classification:

606 33

Abstract:

A method for forming a resonating structure within a body lumen, the method including advancing a flexible microwave catheter into a body lumen of a patient, the flexible microwave catheter including a radiating portion at the distal end of the flexible microwave catheter, the radiating portion configured to receive microwave energy, and at least one centering device proximate the radiating portion configured to deploy radially outward from the flexible microwave catheter; positioning the radiating portion near tissue of interest; deploying the at least one centering device radially outward from the flexible microwave catheter within the body lumen such that a longitudinal axis of the radiating portion is substantially parallel with and at a fixed distance from a longitudinal axis of the body lumen near the targeted tissue; and delivering microwave energy to the radiating portion such that a circumferentially balanced resonating structure is formed with the body lumen.

US Patent:

20130006235, Jan 3, 2013

Filed:

Jul 2, 2012

Appl. No.:

13/540347

Inventors:

Ronald J. Podhajsky - Boulder CO, US
Kristin D. Johnson - Louisville CO, US
Jason Case - Longmont CO, US
Kari Riegner - Golden CO, US
Robert H. Wham - Boulder CO, US

Assignee:

Tyco Healthcare Group LP - Mansfield MA

International Classification:

A61B 18/12

US Classification:

606 34

Abstract:

A method for controlling an electrosurgical waveform includes the initial steps of activating an electrosurgical generator and increasing power during a first sample window and determining a direction of change in a first average impedance during the first sample window. The method also includes the steps of performing a first adjustment of power in response to the direction of change in the first average impedance during a subsequent sample window and determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power. The method also includes performing a subsequent adjustment of power in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.

US Patent:

20130315440, Nov 28, 2013

Filed:

May 22, 2012

Appl. No.:

13/477279

Inventors:

Kevin Frank - Lafayette CO, US
Jason A. Case - Longmont CO, US

Assignee:

VIVANT MEDICAL, INC. - Boulder CO

International Classification:

G06K 9/46

US Classification:

382103

Abstract:

The present disclosure is directed to fiducial tracking system. The fiducial tracking system includes a first device having a fiducial pattern disposed thereon and a second device having an image capture device disposed thereon. The image capturing device is configured to obtain a fiducial image of the fiducial pattern. A controller is also provided that is configured to receive the fiducial image, correct the fiducial image for lens distortion, find correspondence between the fiducial image and a model image, estimate a camera pose, and transform a position of the second device to model coordinates.