Jason J Mitchell

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:

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:

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.

US Patent:

20110319913, Dec 29, 2011

Filed:

Jun 24, 2011

Appl. No.:

13/167964

Inventors:

Robert F. Labadie - Nashville TN, US
J. M. Fitzpatrick - Nashville TN, US
Jason E. Mitchell - Greenbrier TN, US
Gregoire S. Blachon - Nashville TN, US
Jenna Toennies - Nashville TN, US
Thomas J. Withrow - Brentwood TN, US

Assignee:

VANDERBILT UNIVERSITY - Nashville TN

International Classification:

A61B 19/00

US Classification:

606130

Abstract:

A method and apparatus of percutaneous cochlear implantation (PCI). In one embodiment, the method includes the steps of (a) implanting a plurality of anchor members in a skull of a patient surrounding an ear of the patient, (b) attaching a docking frame to the plurality of anchor members, wherein the docking frame has a docking platform and a plurality of fiducial members, (c) acquiring a computed-tomography (CT) image of an area of the patient's head including the ear and the plurality of fiducial members, (d) determining a centroid of each of the plurality of fiducial members and a trajectory for a PCI according to the CT image, (e) configuring a parallel robot by a computer processor according to the CT image such that a top platform of the parallel robot is aligned with the trajectory with respect to the centroids of the plurality of fiducial members, (f) attaching the configured parallel robot to the docking frame, and (g) performing the PCI using one or more surgical tools received by the top platform of the parallel robot.

US Patent:

20190060091, Feb 28, 2019

Filed:

Oct 29, 2018

Appl. No.:

16/173519

Inventors:

- Nashville TN, US
Jason MITCHELL - Greenbrier TN, US
Huseyin Atakan VAROL - Astana, KZ
Brian LAWSON - Nashville TN, US
Don TRUEX - Murfreesboro TN, US

International Classification:

A61F 2/70
A61F 2/60
A61F 2/66
A61F 2/68
A61F 2/76
G01L 1/22
G01L 1/14
A61F 2/64

Abstract:

A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.

US Patent:

20180106386, Apr 19, 2018

Filed:

Oct 26, 2017

Appl. No.:

15/794074

Inventors:

- Nashville TN, US
Jason MITCHELL - Nashville TN, US

International Classification:

F16K 11/07
F16K 31/06
F15B 13/04

Abstract:

A directional-control valve is typically comprised of a valve spool that slides linearly within a valve body. The valve body typically includes five internal ports, which are covered or exposed as the spool slides within the body. The typical five-internal-port architecture precludes certain combinations of port connectivity when the spool is in the center position. For example, when the spool is in the center position, providing connectivity between the actuator ports, while simultaneously providing fluid isolation of the supply and exhaust ports, is not directly achievable with a standard five-port architecture. This application describes three embodiments that enable the aforementioned port connectivity when the spool is in the center position.