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US 10,517,651 B1Granted
Facet joint compression system for spinal stabilization
AssigneeMedlastics LLC
InventorEdgar N. Weaver
Life of this patent
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Abstract
A facet joint compression system includes a rigid post having a longitudinal axis. A rigid arm has a sleeve, a cantilever coupled to the sleeve, and a plate coupled to the cantilever. The sleeve is fitted over the post. A retainer is coupled to the post for applying an axial force to the sleeve wherein the axial force is parallel to the longitudinal axis of the post and is transferred to the plate by the cantilever.
Claims31
A facet joint compression system, comprising:
- a rigid post having a longitudinal axis, said post having an axial end adapted to be installed in a patient's spine;
- a rigid arm having a sleeve, a cantilever coupled to said sleeve, and a plate coupled to said cantilever and adapted to rest on a portion of the patient's spine when said post is installed therein, said sleeve being fitted over a portion of said post;
- and
- a retainer coupled to said post for applying an axial force to said sleeve wherein the axial force is parallel to said longitudinal axis of said post, is directed towards said axial end of said post, and is transferred to said plate by said cantilever wherein said plate is adapted to apply a compressive force to the portion of the patient's spine.
1 more element
A facet joint compression system, comprising:
- a rigid post having a longitudinal axis, said post having a first axial end and a second axial end, said second axial end adapted to be installed in a patient's spine;
- at least one radially-extending protuberance coupled to said post between said first axial end and said second axial end;
- a rigid arm having a sleeve, an arched cantilever coupled on one end thereof to said sleeve, and a plate coupled to another end of said arched cantilever and adapted to rest on a portion of the patient's spine when said post is installed therein, said sleeve being fitted over said first axial end of said post, wherein said plate is approximately parallel to said longitudinal axis of said post when said sleeve is fitted over said post;
- and
- a retainer coupled to said post for applying an axial force to said sleeve wherein the axial force is parallel to said longitudinal axis of said post, is directed towards said second axial end of said post, and is transferred to said plate by said arched cantilever wherein said plate is adapted to apply a compressive force to the portion of the patient's spine.
2 more elements
A facet joint compression system, comprising:
- a rigid post having a longitudinal axis, said post having a first axial end, a second axial end, and an annular flange between said first axial end and said second axial end, said second axial end adapted to be installed in a patient's spine;
- a rigid arm having a sleeve, an arched cantilever coupled on one end thereof to said sleeve, and a plate coupled to another end of said arched cantilever and adapted to rest on a portion of the patient's spine when said post is installed therein, said sleeve being fitted over said first axial end of said post, wherein said plate is parallel to said longitudinal axis of said post when said sleeve is fitted over said post;
- and
- a retainer threaded onto said post for applying an axial force to said sleeve wherein the axial force is parallel to said longitudinal axis of said post, is directed towards said second axial end of said post, and is transferred to said plate by said arched cantilever wherein said plate is adapted to apply a compressive force to the portion of the patient's spine.
1 more element
Dependencies are inferred from the claim text.