Jason D Mitchell

US Patent:

7322375, Jan 29, 2008

Filed:

May 2, 2005

Appl. No.:

11/120140

Inventors:

Michael Goldfarb - Franklin TN, US
Eric J. Barth - Nashville TN, US
Kevin B. Fite - Nashville TN, US
Jason E. Mitchell - Joelton TN, US

Assignee:

Vanderbilt University - Nashville TN

International Classification:

F16K 11/08

US Classification:

13762532, 13762522, 13762524, 251283

Abstract:

A valve includes a rotating, substantially pressure-balanced spool that selectively aligns openings within the spool with openings within a sleeve to selectively connect ports of a manifold for gas or liquid routing. A valve may also include a stem, a needle coupled to the stem. a seat configured to receive the needle, a reservoir, an outlet coupled to the reservoir, and a servo motor coupled to the stem. The servo motor rotates the stem to raise or lower the needle relative to the seat to variably restrict or allow matter flowing from the reservoir to the outlet.

US Patent:

7981122, Jul 19, 2011

Filed:

Jul 24, 2007

Appl. No.:

11/782305

Inventors:

Robert F. Labadie - Nashville TN, US
J. Michael Fitzpatrick - Nashville TN, US
Jason E. Mitchell - Nashville TN, US

Assignee:

Vanderbilt University - Nashville TN

International Classification:

A61B 19/00

US Classification:

606130, 606 96, 248168

Abstract:

In one aspect, the present invention relates to a surgical instrument for providing an access to a target of interest of a living subject. In one embodiment, the surgical instrument has a bearing member, a shaft member and a probe. The bearing member has a first end portion, an opposite, second end portion, a body portion defined therebetween having a longitudinal axis, and a shoulder portion extending from the second end portion. The body portion defines a bore therein along the longitudinal axis. The shoulder portion defines a passage substantially coaxial with and in communication with the bore. The shaft member has an first end portion and an opposite, second end portion, and is slidably received in the bore of the bearing member. The shaft member defines a space extending from the first end portion to the second end portion. The probe has a working end portion and is received in the space of the shaft member such that the working end portion is extendable through the passage of the shoulder portion of the bearing member to reach a target of interest of a living subject so as to provide an access thereto.

US Patent:

8231636, Jul 31, 2012

Filed:

Aug 4, 2008

Appl. No.:

12/185434

Inventors:

J. Michael Fitzpatrick - Nashville TN, US
Robert F. Labadie - Nashville TN, US
Jason E. Mitchell - Greenbrier TN, US

Assignee:

Vanderbilt University - Nashville TN

International Classification:

A61B 17/58

US Classification:

606104

Abstract:

A surgical instrument for securing an anchor in a target area of the skull of a patient, wherein the anchor has a shaped surface, a top and a base. In one embodiment, the surgical instrument includes a driver having a first end, an opposite, second end, and a body portion defined therebetween forming a bore therein along a longitudinal axis, where the bore is configured to allow the anchor to be received therein, a first inner surface formed inside the bore proximate to the first end, wherein the first inner surface is formed with a shape that is complimentary to the shaped surface of the anchor, and a second inner surface formed inside the bore and between the first inner surface and the second end, wherein the second inner surface is formed with a shape that is different from that of the first inner surface.

US Patent:

20090265018, Oct 22, 2009

Filed:

Apr 21, 2009

Appl. No.:

12/427384

Inventors:

Michael Goldfarb - Franklin TN, US
Huseyin Atakan Varol - Nashville TN, US
Jason Mitchell - Greenbrier TN, US
Thomas J. Withrow - Brentwood TN, US

Assignee:

Vanderbilt University - Nashville TN

International Classification:

A61F 2/64

US Classification:

623 40

Abstract:

A powered leg prosthesis includes powered knee joint comprising a knee joint and a knee motor unit for delivering power to the knee joint. The prosthesis also includes a prosthetic lower leg having a socket interface coupled to the knee joint and a powered ankle joint coupled to the lower leg opposite the knee joint comprising an ankle joint and an ankle motor unit to deliver power to the ankle joint. The prosthesis further includes a prosthetic foot coupled to the ankle joint, at least one sensor for measuring a real-time input, and at least one controller for controlling movement of the prosthesis based on the real-time input.

US Patent:

20100174292, Jul 8, 2010

Filed:

Jan 7, 2010

Appl. No.:

12/683800

Inventors:

Robert F. Labadie - Nashville TN, US
Jason E. Mitchell - Greenbrier TN, US

Assignee:

VANDERBILT UNIVERSITY - Nashville TN

International Classification:

A61F 11/00

US Classification:

606108

Abstract:

One aspect of the present invention relates to a surgical instrument for placing a prosthesis into a target area of a living subject. In one embodiment, the surgical instrument includes a body member, a shaft extending away from the body member for securing the prosthesis, an engaging member engaged with the body member and the shaft, for engaging the prosthesis, and an actuator connected to the engaging member, for moving between a first position in which the engaging member is disengaged from the prosthesis and a second position in which the engaging member is engaged with the prosthesis.

US Patent:

20100179564, Jul 15, 2010

Filed:

Feb 26, 2010

Appl. No.:

12/713648

Inventors:

Jason E. Mitchell - Greenbrier TN, US
Robert F. Labadie - Bozeman TN, US
J. Michael Fitzpatrick - Nashville TN, US

Assignee:

VANDERBILT UNIVERSITY - Nashville TN

International Classification:

A61B 19/00
A61B 5/05

US Classification:

606130, 600429

Abstract:

The present invention, in another aspect, relates to a microstereotactic table. In one embodiment, the microstereotactic table includes a plate member having a first surface, an opposite, second surface, a body portion defined therebetween, a plurality of leg members, each of them removably engaged with the plate member, respectively, and a passage is formed between the first surface and the opposite, second surface of the body portion of the plate member and along a longitudinal axis, wherein a step is formed within the passage, and wherein the step is formed such that the distance from the step to one of the first surface and the opposite, second surface along the longitudinal axis is a predetermined length.

US Patent:

20110224803, Sep 15, 2011

Filed:

May 25, 2011

Appl. No.:

13/115175

Inventors:

Michael Goldfarb - Franklin TN, US
Huseyin Atakan Varol - Nashville TN, US
Jason Mitchell - Franklin TN, US
Thomas J. Withrow - Brentwood TN, US

Assignee:

Vanderbilt University - Nashville TN

International Classification:

A61F 2/64

US Classification:

623 40

Abstract:

A powered leg prosthesis includes powered knee joint comprising a knee joint and a knee motor unit for delivering power to the knee joint. The prosthesis also includes a prosthetic lower leg having a socket interface coupled to the knee joint and a powered ankle joint coupled to the lower leg opposite the knee joint comprising an ankle, joint and an ankle motor unit to deliver power to the ankle joint. The prosthesis further includes a prosthetic foot coupled to the ankle joint, at least one sensor for measuring a real-time input, and at least one controller for controlling movement of the prosthesis based on the real-time input.

US Patent:

20110230895, Sep 22, 2011

Filed:

May 27, 2011

Appl. No.:

13/117395

Inventors:

Robert F. Labadie - Nashville TN, US
J. Michael Fitzpatrick - Nashville TN, US
Jason E. Mitchell - Greenbrier TN, US

Assignee:

VANDERBILT UNIVERSITY - Nashville TN

International Classification:

A61B 19/00

US Classification:

606130

Abstract:

In one aspect, the present invention relates to a surgical instrument for providing an access to a target of interest of a living subject. In one embodiment, the surgical instrument has a bearing member, a shaft member and a probe. The bearing member has a first end portion, an opposite, second end portion, a body portion defined therebetween having a longitudinal axis, and a shoulder portion extending from the second end portion. The body portion defines a bore therein along the longitudinal axis. The shoulder portion defines a passage substantially coaxial with and in communication with the bore. The shaft member has an first end portion and an opposite, second end portion, and is slidably received in the bore of the bearing member. The shaft member defines a space extending from the first end portion to the second end portion. The probe has a working end portion and is received in the space of the shaft member such that the working end portion is extendable through the passage of the shoulder portion of the bearing member to reach a target of interest of a living subject so as to provide an access thereto.