Andrew Geary Freese

US Patent:

20120158066, Jun 21, 2012

Filed:

Dec 20, 2010

Appl. No.:

12/973685

Inventors:

Andrew Freese - Chester Springs PA, US

International Classification:

A61B 17/88
A61B 17/70

US Classification:

606279, 606246

Abstract:

Modified anterior or posterior fusion plates and interbody fusion devices have been developed that contain slots to allow the use of pins to position and to guide the placement of the plate while the screws are being secured, reducing the likelihood of improper placement and localization of the plate and screws. This reduces the amount of time required for the operative procedure, and prevents inadvertent introduction of the screws for the plate into the former pin holes. This system allows the surgeon to carefully identify the geometry of the vertebral bodies at the outset of the case, when there is no significant bleeding, and when the field is clearly visualized, to determine the placement of the distracting pins. Then, the careful placement of the distracting pins serves as the guide and basis for placement of the plate and screws.

US Patent:

20140052183, Feb 20, 2014

Filed:

Aug 7, 2013

Appl. No.:

13/961355

Inventors:

Andrew Freese - Chester Springs PA, US

Assignee:

FreeseTEC Corporation - Bryn Mawr PA

International Classification:

A61B 17/04
A61B 17/70

US Classification:

606248, 606279

Abstract:

Devices, kits, and methods for stabilizing the spine and replacing spinous processes removed during spine surgery are provided. The device has a suitable configuration to attach to both spine surgery hardware and to the paraspinal muscles and fascia. The device contains a muscle attachment portion, one or more connectors, and one or more cross connectors. Each cross connector contains a pair of connection portions configured to attach to hardware that is implanted in the spine, such as screw heads or rods. The muscle attachment portion contains a plurality of openings for the attachment of the paraspinal muscles and fascia. Following spine surgery, a surgeon attaches the device to the hardware implanted in the surgical site, and sutures the paraspinal muscles to the openings. Thus the device provides a direct attachment to the paraspinal musculature and fascia, and thereby stabilizes the spine.

US Patent:

20160302929, Oct 20, 2016

Filed:

Apr 15, 2016

Appl. No.:

15/130634

Inventors:

- Exton PA, US
Andrew Freese - Chester Springs PA, US

International Classification:

A61F 2/28
A61F 2/46
A61B 17/70

Abstract:

Bone graft retention devices, systems, and methods for retaining bone graft material at a desired site are described. The devices may attach to existing bone fusion systems or components thereof, such as rods or cross connectors, or may be integrated directly into a cross connector. The devices include a fin, and optionally one or more attachment elements. The bone graft material is attached to the fin, such as via an adhesive or by friction fit inside a cavity. Optionally, during insertion in a patient, the fin is flipped upwards so that it does not hinder the insertion. Following insertion of the rod or cross-connector in the desired location and tightening of the screws into their final positions, the fin of the bone graft retention device is flipped into place such that it aligns with the spine, pressing the bone graft material against the spine.

US Patent:

20150230841, Aug 20, 2015

Filed:

May 4, 2015

Appl. No.:

14/703279

Inventors:

- Wayne PA, US
Andrew Freese - Coatesville PA, US

International Classification:

A61B 17/80
A61B 17/70
A61B 17/84

Abstract:

Fusion plates and interbody fusion devices have been developed that contain slots to allow the use of pins to position and to guide the placement of the plate while the screws are being secured, reducing the likelihood of improper placement and localization of the plate and screws. The slots contain ridges formed of a plurality of teeth that are configured to engage with corresponding ridges and teeth on the shaft of a distraction pin. After the plate is placed over the distraction pins, the plate is immobilized in the inferior and superior directions and also in the anterior-posterior direction even prior to placement of the bone screws in the plate. Optionally, the pins may be compressed together to apply compression to the vertebra prior to placement of the bone screws.