MICHAEL MACMILLAN, MD
Medical Practice at Newberry Rd, Gainesville, FL

2009003, Feb 5, 2009

Aug 1, 2007

11/888566

Jonathan Blackwell - Cordova TN, US
Michael MacMillan - Gainesville FL, US
Richard Thomas Hackett - Memphis TN, US

A61B 1/32

600219, 600235

Instrumentation for retracting tissue comprising a retractor member including a sidewall defining an axial passage extending along a length thereof and a lateral opening in transverse communication with the passage. A pin member is disposed within the passage and includes a distal end portion positionable adjacent the distal end of the retractor member, with at least a portion of the pin member positioned adjacent and visible through the lateral opening. In another embodiment, the retractor member includes a sidewall having a main sidewall portion defining a first wall thickness, and an enlarged sidewall portion extending axially along a length of the sidewall and defining a second wall thickness greater than the first wall thickness, with the sidewall defining an axial passage extending through the enlarged sidewall portion. A pin member is disposed within the passage and includes a distal end portion positionable adjacent the distal end of the retractor member.

2007017, Jul 26, 2007

Jan 10, 2007

11/621737

Michael MacMillan - Gainesville FL, US

A61F 5/00

606087000

Various embodiments of the present invention provide, for example, a system and method for centering a surgical tool about the spinous process or other bony structure. Certain embodiments of the present invention may guide the surgical tool along a posterior midline of the spine in order to divide the spinous process. Various embodiments of the present invention may also further provide a system and method for performing a minimally invasive laminectomy procedure via the midline approach described above that may thus reduce the trauma experienced by tissues surrounding the spine or other bony structure.

5242444, Sep 7, 1993

Nov 4, 1991

7/787537

Michael MacMillan - Gainesville FL

University of Florida - Gainesville FL

A61B 1756

606 61

A method for percutaneously fixing and fusing the lumbosacral joint and a guide device for accurate placement of instrumentation to effect the fixation or fusion. The inventive method comprises placement of pins along bony canals leading bilateral of the spine from the pelvis to the S1 pedicles and then the vertebral body of L5.

4951655, Aug 28, 1990

Mar 27, 1989

7/329278

Michael MacMillan - Gainesville FL
Christopher Schirmer - Gainesville FL

University of Florida - Gainesville FL

A61F 508

128 76R

A cervical spine orthosis is provided which comprises an upper body engaging member, such as a vest, a front and rear pair of rigid vest uprights, and a band encirculing the head of the wearer at the level of the wearer's mouth, the bank being securely fastened to the vest uprights, and carrying a maxillary bridge comprising a maxillary tooth splint adapted to engage the upper set of teeth of the wearer and a bridge member attached to and spanning the distance between the band and the maxillary tooth splint. The band further has attached thereto, two occipital support pads which are adapted to engage the neck of the wearer at the occipital bone region at the posterior base of the skull, the support pads being movable into an engaging position with the neck by use of threaded positioning screws. Improved immobilization and/or control of movement the cervical spine are provided.

5062850, Nov 5, 1991

Jan 16, 1990

7/465419

Michael MacMillan - Gainesville FL
Regis Haid - San Antonio TX

University of Florida - Gainesville FL

A61F 244

623 17

A vertebral body prosthetic device for replacing a surgically removed natural vertebral body and a method for its fixation to thereby reconstruct a patient's spinal column. The inventive device generally comprises upper and lower endplates separated by a plurality of support columns or posts. The device is dimensioned to fit completely within the patient's vertebral column and is fixed using axially-oriented screws.