William J Reimels

US Patent:

20220273283, Sep 1, 2022

Filed:

May 19, 2022

Appl. No.:

17/748364

Inventors:

- Carlsbad CA, US
William Reimels - Hamilton OH, US

Assignee:

Alphatec Spine, Inc. - Carlsbad CA

International Classification:

A61B 17/02

Abstract:

A system for interchangeable retractor blades includes a shell, a first retractor blade, and a second retractor blade. The shell includes a rigid proximal end configured to attach to a surgical retractor and an opening, a distal closed end, and a pliable portion including a pocket in communication with the opening and extending along a length of the shell to the distal closed end. The first retractor blade includes a first geometry received through the opening into the pocket and that shapes the pliable portion to configure the shell in a first configuration. The second retractor blade includes a second geometry received through the opening into the pocket and that shapes the pliable portion to configure the shell in a second configuration.

US Patent:

20230059243, Feb 23, 2023

Filed:

Oct 24, 2022

Appl. No.:

17/972457

Inventors:

- Carlsbad CA, US
William Reimels - Hamilton OH, US

Assignee:

Alphatec Spine, Inc. - Carlsbad CA

International Classification:

A61B 17/84
A61B 17/70
A61B 17/86

Abstract:

A surgical screw configured to expand and prevent or minimize bone growth inside of the surgical screw is provided. Accordingly, the surgical screw is configured to increase the purchase of the surgical screw with respect to the bone, but also to be withdrawn from the bone without damaging the bone as a result of bone ingrowth. The surgical screw includes a center post with an inner bore and an outer sleeve concentric to the center post. An outer surface of the outer sleeve includes a thread to engage bone. The outer sleeve includes a cut pattern defining an expandable region configurable between a first state with a first radius measured from a longitudinal axis of the surgical screw to the outer surface and a second state having a second radius measured from the longitudinal axis to the outer surface.