Daniel B Triplett

US Patent:

7588590, Sep 15, 2009

Filed:

Jun 2, 2004

Appl. No.:

10/860778

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US
T. Wade Fallin - Hyde Park UT, US
Robert W. Hoy - Paradise UT, US
Daniel F. Justin - Logan UT, US

Assignee:

Facet Solutions, Inc - Hopkinton MA

International Classification:

A61B 17/70

US Classification:

606247

Abstract:

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

US Patent:

7758581, Jul 20, 2010

Filed:

Mar 24, 2006

Appl. No.:

11/388389

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US

Assignee:

Facet Solutions, Inc. - Hopkinton MA

International Classification:

A61B 17/00
A61B 17/17
A61B 17/58
A61B 17/60

US Classification:

606 80, 606 79, 606 86 R, 606 96

Abstract:

A reamer may be designed to engage a guide member, such as a guide wire, implanted in bone at any of a plurality of relative orientations such that the resulting resection of the bone does not depend on the relative orientation. The reamer may have a shaft that receives torque and a reaming head with a cavity into which a protruding portion of the guide wire is insertable. The cavity may have a generally conical shape capable of receiving the guide wire at a variety of relative orientations. The orientation of the reaming head is determined not by that of the guide wire, but by a stationary frame to which the reamer is coupled. The reamer may optionally have an offset assembly that causes the reaming head to rotate about an axis displaced from that of the shaft to reduce the size of the incision required to reaming head.

US Patent:

8419770, Apr 16, 2013

Filed:

Jun 2, 2004

Appl. No.:

10/860543

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US
T. Wade Fallin - Hyde Park UT, US
Robert W. Hoy - Paradise UT, US

Assignee:

GMEDelaware 2 LLC - Audubon PA

International Classification:

A61F 2/44

US Classification:

606247, 623 1711

Abstract:

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

US Patent:

20060217718, Sep 28, 2006

Filed:

Feb 7, 2006

Appl. No.:

11/350179

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel Triplett - Providence UT, US

International Classification:

A61F 2/30

US Classification:

606061000

Abstract:

A crosslink is provided for securing orthopedic implants, such as facet joint replacement implants, together. The crosslink has a pair of implant coupling components, a pair of rod coupling components, a rod, and a pair of fasteners. Each facet joint implant may include a semicylindrical interface received in a resilient member of the corresponding implant coupling component to permit relative cephalad/caudal adjustment between the crosslink and the implants. The resilient members grip the semicylindrical interface of the implant to enable at least temporary attachment of the implant coupling components to the implants independently of the rod. Clocking features on the semicylindrical interfaces and on the interfacing areas of the implant coupling components and rod coupling components may limit assembly of the crosslink to discrete relative orientations and prevent play after assembly. The fasteners secure the rod coupling components to the rod at the desired positions along the rod.

US Patent:

20090024167, Jan 22, 2009

Filed:

Sep 29, 2008

Appl. No.:

12/240070

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US
T. Wade Fallin - Hyde Park UT, US
Robert W. Hoy - Columbus OH, US

Assignee:

FACET SOLUTIONS, INC. - Logan UT

International Classification:

A61B 17/70
A61F 2/44

US Classification:

606247, 623 1711

Abstract:

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

US Patent:

20110208246, Aug 25, 2011

Filed:

Feb 22, 2011

Appl. No.:

13/032223

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US
T. Wade Fallin - Hyde Park UT, US
Robert W. Hoy - Paradise UT, US
Daniel F. Justin - Logan UT, US

International Classification:

A61B 17/88

US Classification:

606279

Abstract:

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

US Patent:

20120323277, Dec 20, 2012

Filed:

Aug 28, 2012

Appl. No.:

13/596830

Inventors:

Alan Chervitz - Palm Harbor FL, US
Daniel J. Triplett - Providence UT, US
T. Wade Fallin - Hyde Park UT, US
Robert W. Hoy - Paradise UT, US

International Classification:

A61B 17/70

US Classification:

606253, 606257, 606250

Abstract:

Superior and/or inferior facets of one or more facet joints may be replaced by superior and/or inferior facet joint prostheses. In one embodiment, a kit of superior or inferior prostheses is provided, in which the prostheses have at least two dimensions that vary among members of the kit independently of each other. Each prosthesis may have a bone engaging surface having a surface that is polyaxially rotatable against a corresponding resection of a vertebra. Each prosthesis may also have an articulating surface shaped such that, after attachment to the spine, the replaced or partially replaced facet joints provide a larger medial-lateral range of motion when the spine is flexed than when the spine is extended. Crosslinks may be used to connect left and right prosthesis together in such a manner that they are stabilized in a position in which they are seated directly against the vertebra.

US Patent:

20140046444, Feb 13, 2014

Filed:

Aug 9, 2013

Appl. No.:

13/963655

Inventors:

Alan Chervitz - Palm Harbor FL, US
Jude V. Pagnelli - San Diego CA, US
Daniel J. Triplett - Providence UT, US

International Classification:

A61B 17/70

US Classification:

623 1711

Abstract:

A prosthesis for the replacement of at least a portion of the bone of a facet located on a mammalian vertebra, comprising: an articulating surface that articulates with another facet; a bone contacting surface that contacts a surface of the vertebra, the articulating surface being connected to the bone contacting surface; and a fixation element that attaches the bone contacting surface to the vertebra, the fixation element being adapted for implantation into an interior bone space of a pedicle of the vertebra; wherein the prosthesis is configured so that no portion of the prosthesis contacts the posterior arch of the vertebra.