IAIN H KALFAS, MD
Medical Practice at Euclid Ave, Cleveland, OH

6377839, Apr 23, 2002

May 29, 1998

09/087370

Iain H. Kalfas - Beachwood OH
Donald W. Kormos - Parma OH
David W. Piraino - Shaker Heights OH
Gene H. Barnett - Shaker Heights OH
Charles P. Steiner - Euclid OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 500

600426, 600427, 600429, 606130, 128897

A patient is secured to a subject support ( ). A stereotaxic wand ( ) is inserted into a tool guide ( ). The wand has a tip portion ( ), a portion extending along a pointing axis ( ) of the wand, an offset portion ( ) which is offset from the pointing axis of the wand, and at least two wand emitters ( ), mounted in alignment with the pointing axis of the wand. The two emitters selectively emit wand signals which are received by three receivers ( ) mounted to a frame assembly ( ). The tool guide includes a bore ( ) extending along a guide axis. The bore is configured for selectively receiving a tool and the tip portion of the wand. An entry point and a trajectory are identified by the surgeon with the wand in the guide. More specifically, a trajectory and location of the wand are superimposed on a diagnostic image on a monitor ( ). If the surgeon is satisfied with the entry point and trajectory shown on the monitor, a surgical tool is inserted into the bore while the tool guide is held along the designated trajectory and at the designated entry point.

5517990, May 21, 1996

Apr 8, 1994

8/224955

Iain H. Kalfas - Beachwood OH
Donald W. Kormos - Parma OH
David W. Piraino - Shaker Heights OH
Gene H. Barnett - Shaker Heights OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 600

1286531

A patient is secured to a subject support (10). A stereotaxic wand (40) is inserted into a tool guide (60). The wand has a tip portion (44), a portion extending along a pointing axis (46) of the wand, an offset portion (42) which is offset from the pointing axis of the wand, and at least two wand emitters (48, 50), mounted in alignment with the pointing axis of the wand. The two emitters selectively emit wand signals which are received by three receivers (14) mounted to a frame assembly (12). The tool guide includes a bore (66) extending along a guide axis. The bore is configured for selectively receiving a tool and the tip portion of the wand. An entry point and a trajectory are identified by the surgeon with the wand in the guide. More specifically, a trajectory and location of the wand are superimposed on a diagnostic image on a monitor (30). If the surgeon is satisfied with the entry point and trajectory shown on the monitor, a surgical tool is inserted into the bore while the tool guide is held along the designated trajectory and at the designated entry point.

5732703, Mar 31, 1998

May 20, 1996

8/650455

Iain H. Kalfas - Beachwood OH
Donald W. Kormos - Parma OH
David W. Piraino - Shaker Heights OH
Gene H. Barnett - Gates Mills OH
Charles P. Steiner - Pepper Pike OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 600

1286531

A patient is secured to a subject support (10). A stereotaxic wand (40) is inserted into a tool guide (60). The wand has a tip portion (44), a portion extending along a pointing axis (46) of the wand, an offset portion (42) which is offset from the pointing axis of the wand, and at least three wand emitters (48, 50, 52), mounted in alignment with the pointing axis of the wand. The three emitters selectively emit infrared light which is received by two CCD cameras (14) mounted to a frame assembly (12). The tool guide includes a bore (76) extending along a guide axis. The bore is configured for selectively receiving a tool and the tip portion of the wand. An entry point and a trajectory are identified by the surgeon with the wand in the guide. More specifically, a trajectory and location of the wand are superimposed on a diagnostic image on a monitor (30). If the surgeon is satisfied with the entry point and trajectory shown on the monitor, a surgical tool is inserted into the bore while the tool guide is held along the designated trajectory and at the designated entry point.

5776064, Jul 7, 1998

May 20, 1996

8/650312

Iain H. Kalfas - Beachwood OH
Donald W. Kormos - Parma OH
David W. Piraino - Shaker Heights OH
Gene H. Barnett - Shaker Heights OH
Charles P. Steiner - Euclid OH

The Cleveland Clinic Foundation - Cleveland OH

A61B 600

600414

A patient is secured to a subject support (10). A stereotaxic wand (40) is inserted into a tool guide (60). The wand has a tip portion (44), a portion extending along a pointing axis (46) of the wand, an offset portion (42) which is offset from the pointing axis of the wand, and at least two wand emitters (48, 50), mounted in alignment with the pointing axis of the wand. The two emitters selectively emit wand signals which are received by three receivers (14) mounted to a frame assembly (12). The tool guide includes a bore (66) extending along a guide axis. The bore is configured for selectively receiving a tool and the tip portion of the wand. An entry point and a trajectory are identified by the surgeon with the wand in the guide. More specifically, a trajectory and location of the wand are superimposed on a diagnostic image on a monitor (30). If the surgeon is satisfied with the entry point and trajectory shown on the monitor, a surgical tool is inserted into the bore while the tool guide is held along the designated trajectory and at the designated entry point.

2010022, Sep 2, 2010

May 11, 2010

12/777934

Gary S. Lindemann - Collierville TN, US
Larry Gause - Memphis TN, US
Robert A. Farris - Cordova TN, US
Stephen Papadopoulos - Paradise AZ, US
Rick Sasso - Indianapolis IN, US
Volker Sonntag - Phoenix AZ, US
Vince Traynelis - Iowa City IA, US
Iain Kalfas - Beachwood OH, US

Warsaw Orthopedic, Inc. - Warsaw IN

A61B 17/80

606 71, 606289

A retention system for maintaining a screw to a vertebral plate is described herein. One or more screws extend through apertures within the vertebral plate. A cavity is positioned adjacent to and overlaps into the aperture. A ring is positioned within the cavity and held in position by a cap. The cap attaches to the plate to prevent removal of the ring. The ring is deflectable between a first shape to allow the screw to be inserted and removed from the aperture, and a second shape to prevent screw back-out from the aperture.

2013000, Jan 3, 2013

Jul 3, 2012

13/540770

Iain KALFAS - Beachwood OH, US
Tom DOHERTY - Bellingham MA, US
David SELVITELLI - Millis MA, US
Stephen JOHNSON - Johnston RI, US
Michael MAZZUCA - North Easton MA, US

DePuy Spine Sarl - Le locle

A61B 17/70

606250

A rod connector for joining a first rod and a second rod includes bore holes that are offset and/or non-parallel to each other. The rod connector provides an offset or non-parallel connection between the rods that allows for the rods to match the contour of a patient's body without requiring bending of the rods. The rod connector may include a first bore hole for receiving the first spinal rod and a second bore hole for receiving the second spinal rod that is adjustable relative to the first bore hole to adjust the position and/or orientation of the second spinal rod relative to the first spinal rod. The rod connector may comprise a first housing component defining the first bore hole and a second housing component that is movable relative to the first housing component and defining the second bore hole.

7572282, Aug 11, 2009

Apr 23, 2004

10/830621

Mark C. Boomer - Irvine CA, US
Iain Kalfas - Beachwood OH, US
Raymond F. Murphy - Attleboro MA, US

DePuy Spine SARL - Le Locle

A61B 17/80

606280, 606902

A spinal fixation plate that is adapted to be implanted in a variety of positions in the occiput is provided. In general, the plate has a substantially planar configuration and it includes a mid-line or central portion having several thru-bores formed therein, and first and second opposed branch portions that extend from the central portion and that also include at least one thru-bore formed therein. The configuration of the branch portions relative to the central portion, as well as the position of the mid-line thru-bores formed in the central portion in relation to the thru-bore(s) formed in each branch portion, allow the spinal fixation plate to be implanted in a variety of positions in the occiput, thus allowing the optimal implant site to be selected.

7645294, Jan 12, 2010

Mar 31, 2004

10/813904

Iain H. Kalfas - Beachwood OH, US
Carl Lauryssen - Malibu CA, US
Steven Ludwig - Severna Park MD, US
Michael O'Brien - Pinecrest FL, US
Thomas Doherty - Bellingham MA, US
Mark T. Hall - Bridgewater MA, US
Bryan S. Jones - Norwood MA, US
David Konieczynski - Needham MA, US
Raymond F. Murphy - Attleboro MA, US

Depuy Spine, Inc. - Raynham MA

A61B 17/70

606250, 606246, 606264, 606265, 606266, 606267

A spinal fixation system comprising at least two bone anchors, a rod connecting the bone anchors and a connecting plate extending from a proximal surface of at least one of the bone anchors. A method of fixing vertebrae relative to each other comprising the steps of: implanting bone anchors in two adjacent vertebrae, each bone anchor having a rod receiving portion; placing a rod in the rod receiving portions, thereby connecting the bone anchors; threadably engaging set screws in the rod receiving portions of at least a portion of the bone anchors, thereby fixing the rod to the bone anchors; mating one end of a connecting plate to a proximal bearing surface of at least a portion of the bone anchors; and engaging a cap with at least a portion of the set screws, thereby fixing the connecting plate to the bone anchors.

7727266, Jun 1, 2010

Jun 17, 2004

10/870026

Gary S. Lindemann - Collierville TN, US
Larry Gause - Memphis TN, US
Robert A. Farris - Cordova TN, US
Stephen Papadopoulos - Paradise Valley AZ, US
Rick Sasso - Carmel IN, US
Volker Sonntag - Phoenix AZ, US
Vince Traynelis - Iowa City IA, US
Iain Kalfas - Beachwood OH, US

A61B 17/80

606289

A retention system for maintaining a screw to a vertebral plate. One or more screws extend through apertures within the vertebral plate. A cavity is positioned adjacent to and overlaps into the aperture. A ring is positioned within the cavity and held in position by a cap. The cap attaches to the plate to prevent removal of the ring. The ring is deflectable between a first shape to allow the screw to be inserted and removed from the aperture, and a second shape to prevent screw back-out from the aperture. A method of using the system is also included and comprises positioning the ring within a cavity in the plate, maintaining the position of the ring to the plate by attaching a cap, inserting a screw through the aperture and attaching the plate to a vertebral member, and positioning the ring over the screw head and preventing the screw from backing-out.