BRIAN EDWARD DALTON
Medical Practice in Erie, PA

7998144, Aug 16, 2011

Dec 22, 2006

11/644546

Joerg Schumacher - Tuttlingen, DE
Brian E. Dalton - Erie PA, US
Ulrich Hahn - Rheinberg, DE

Aesculap AG - Tuttlingen

A61B 17/58, A61B 17/60, A61F 2/00

606 99, 606 96, 606100, 606103, 606104, 606 86 A

A surgical instrument for holding and inserting a connection member of an osteosynthesis device into a retainer of a bone anchorage element comprises a distal end, a proximal end and a first connection portion at a distal end. The first connection portion comprises a connection member receptacle for receiving at least a portion of the connection member. The instrument further comprises a locking mechanism which is transferable from a release position, in which the instrument is releasable from the connection member, to a connection position, in which the instrument can be connected to the connection member. Moreover, an osteosynthesis device comprising at least two bone anchorage elements and at least a connection member is proposed, which further comprises a surgical instrument for holding and inserting the connection member into at least one retainer of the bone anchorage elements.

2009028, Nov 12, 2009

May 8, 2008

12/117302

Paul C. WEAVER - Douglassville PA, US
Brian E. DALTON - Erie PA, US

AESCULAP IMPLANT SYSTEMS, INC. - Center Valley PA

A61B 17/70, A61B 17/04

606246, 606280, 606286, 606 70, 606301

A spinal stabilization system includes an implant and instrumentation for stabilizing the spine. In one embodiment, the system includes a plate having a side rail and a channel extending adjacent the side rail. A pedicle screw assembly is positioned in the channel in releasable engagement with the side rail. The pedicle screw assembly includes a polyaxial screw seated in a lower housing having a lower locking flange. An upper housing having an upper locking flange secures the plate to the lower housing. The side rail of the plate is releasably engaged between the upper locking flange and the lower locking flange. The upper and lower housings include on-board locking mechanisms for fixing components in the screw assembly. The screw assembly and plate are inserted and oriented by remote manipulation. Minimally invasive techniques for inserting the implant are performed with the instrumentation, and cause minimal disturbance to surrounding tissue.

6945974, Sep 20, 2005

Jul 7, 2003

10/615196

Brian E. Dalton - Erie PA, US

Aesculap Inc. - Center Valley PA

A61B017/58

606 70, 61 69

Vertebra bodies in the human spine are stabilized through the use of minimally invasive surgery for the implantation of an elongate implant plate assembly having spaced first and second screw receiving socket elements which are configured for respective attachment to first and second spaced vertebra with the aid of bone fixation screws and these elements are slidably received with respect to each other for adjustably changing the distance between the screw receiving socket elements. A lock assembly is also provided for selectively locking the first and second screw receiving elements from further relative sliding. An elongate insertion tool is releaseably secured to the proximal end of this plate assembly whereby the tool and the elongate plate assembly extend together end to end in their direction of elongation when secured together, and the insertion tool is configured for manipulating the plate assembly as a whole and for remotely manipulating the screw receiving socket elements for adjusting the distance therebetween. The plate assembly is inserted through an incision and manipulated and advanced with the insertion tool to provide minimally invasive insertion, and after fixation of the implant assembly with bone fixation screws is further utilized to adjust the degree of compression on the vertebra, and thereafter the implant is locked in position to prevent further relative movement between the screw receiving elements of the plate assembly.

8123785, Feb 28, 2012

May 8, 2008

12/117294

Paul C. Weaver - Douglassville PA, US
Brian E. Dalton - Erie PA, US

Aesculap Implant Systems, LLC - Center Valley PA

A61B 17/80

606279, 606272, 606281, 606282

A spinal stabilization system includes an implant and instrumentation for stabilizing the spine. In one embodiment, the system includes a plate having a side rail and a channel extending adjacent the side rail. A pedicle screw assembly is positioned in the channel in releasable engagement with the side rail. The pedicle screw assembly includes a polyaxial screw seated in a lower housing having a lower locking flange. An upper housing having an upper locking flange secures the plate to the lower housing. The side rail of the plate is releasably engaged between the upper locking flange and the lower locking flange. The upper and lower housings include on-board locking mechanisms for fixing components in the screw assembly. The screw assembly and plate are inserted and oriented by remote manipulation. Minimally invasive techniques for inserting the implant are performed with the instrumentation, and cause minimal disturbance to surrounding tissue.

2006001, Jan 19, 2006

Sep 20, 2005

11/230431

Brian Dalton - Erie PA, US

A61B 17/56

606070000

A bone plate is provided for fixation of spaced vertebra. The bone plate has at least one through passage for securing the plate to bone with a bone fixation screw. The threaded shaft of a bone fixation screw is inserted through a bushing located in the through passage of the bone plate and the screw is thereby threadably secured to the underlying bone and the bushing is then compressed inward against the head of the screw with cams that are actuated by rotating the bushing in the through passage whereby the screw is locked relative to the bone plate. The bushing is not only compressed inwardly against the head of the screw but is also compressed downwardly by the cams into a seat to clamp separate elements of the bone plate together.

2008011, May 22, 2008

Nov 20, 2006

11/602138

Brian E. Dalton - Erie PA, US
Charlie Wing - Center Valley PA, US
John Nawarynski - Allentown PA, US

A61B 17/58, A61B 17/56

606 61, 606 73

An assembly for treating a spinal disorder includes a sleeve having a socket end, a tool-receiving end and a wall extending between the socket end and tool-receiving end. The socket end has a socket opening for receiving a bone fixation screw cap and a pair of opposing notches for accommodating an elongated fixation member. A sleeve wall forms a hollow bore extending axially between the tool-receiving end and the socket end of the sleeve. A method for repairing a spinal disorder includes the step of inserting a polyaxial screw into a vertebral bone, where the polyaxial screw has a screw cap. An elongated fixation member is inserted into the screw cap, followed by a fastener which is inserted into the screw cap in proximity to the elongated fixation member. An adjustment device is connected to the screw cap to adjust the position of the polyaxial screw and vertebral bone.

8048131, Nov 1, 2011

Sep 7, 2007

11/899702

Brian E. Dalton - Erie PA, US

Aesculap Implant Systems, LLC - Center Valley PA

A61B 17/86, A61F 2/08

606305

A bone fixation screw includes a threaded screw shank and a screw head having upper and lower ends. The screw head lower end is secured to a proximal end of said screw shank. The screw head has substantially frustospherical shaped side surfaces and is split into segments at one of the ends. The head is radially expandable at the one end. An expansion screw is centrally received in the screw head. An interface between the expansion screw and the screw head forms a cam mechanism for expanding the screw head upon axial rotation of the expansion screw.

2010031, Dec 9, 2010

Jun 8, 2009

12/455794

Brian E. Dalton - Erie PA, US

A61B 1/32

600210

The surgical retractor of the present invention includes a proximal base frame having an opening for overlying an operative site on a patient. A plurality of tissue engaging retractor blades are arrayed and disposed about and extend downwardly from the frame about a central axis of the opening to distal blade ends. Each blade has an outwardly and generally horizontally extending blade handle at their proximal ends which handles are slidably mounted to the frame whereby the blades may be selectively retracted by the handles from the central axis for thereby retracting tissue. The blade handles pass through guide slots in the frame, and more particularly through guide slots provided in respective pivotal segments that are pivotally secured to the frame on respective horizontal axes thereby the blades may be thereby independently pivoted downwardly and outwardly from the central axis. An internally opened expansion collet is coaxially received in the top of the frame for adjustable coaxial advancement downwardly into the frame. The collet is dimensioned for simultaneous engagement of selected of the pivotal segments for thereby simultaneously urging them together with their respective blades downwardly and outwardly away from the central axis to further retract tissue.