Back to results
US 12,599,416 B2Granted
Adjustable implant
AssigneeNuVasive Specialized Orthopedics, Inc.
InventorsJorge Lopez Camacho, Shawn Placie, Michael Moeller
Life of this patent
Estimating the term…
Abstract
One aspect of the disclosure relates to an aspect of the disclosure relates to an adjustable implant including: a housing; a first adjustable member at least partially positioned within the housing and moveable relative to the housing; and a first actuation assembly positioned within the first adjustable member and configured to move the first adjustable member relative to the housing.
Claims18
An adjustable implant comprising:
- a housing having an internal thread and defining a cavity within the housing;
- a first adjustable member at least partially positioned within the housing and moveable relative to the housing within the cavity;
- and
- a first actuation assembly positioned within the first adjustable member and configured to move the first adjustable member relative to the housing, the first actuation assembly including:
- an actuator configured to be activated by an external adjustment device;
- a gear assembly coupled to the actuator;
- an output driver coupled to the gear assembly;
- and
- a nut disposed at least partially surrounding the output driver and having an outer thread configured to communicate with the internal thread of the housing;
- an anti-jam feature positioned within the cavity opposite the first adjustable member, wherein the anti-jam feature includes a spring tab;
- wherein the output driver of the first actuation assembly includes a complementary tab configured to engage the spring tab of the anti-jam feature when the adjustable implant is in a fully retracted state;
- and
- wherein the spring tab is configured to provide a spring force upon the output driver when the adjustable implant is in the fully retracted state.
10 more elements
An adjustable implant comprising:
- a housing defining a cavity;
- a first adjustable member at least partially positioned within the housing and moveable relative to the housing within the cavity;
- and
- a first actuation assembly positioned within the first adjustable member and configured to move the first adjustable member relative to the housing, wherein the first actuation assembly includes:
- an actuator configured to be activated by an external adjustment device;
- a gear assembly coupled to the actuator;
- a roller driver coupled with the gear assembly;
- at least one threaded roller positioned radially about and threadingly engaged with both the roller driver and an internal thread of the housing;
- and
- a cage substantially surrounding the roller driver and defining at least one aperture configured to receive the at least one threaded roller therein;
- an intermediary member positioned between the housing and the first adjustable member, the intermediary member including at least one groove facing an outer surface of the first adjustable member and at least one groove facing an inner surface of the housing;
- a radial seal, o-ring or retainer positioned within the at least one groove facing the outer surface of the first adjustable member;
- and
- a radial seal, o-ring or retainer positioned within the at least one groove facing the inner surface of the housing,
- wherein the first adjustable member includes an oblong outer cross-section and the intermediary member includes an oblong inner cross-section.
12 more elements
Dependencies are inferred from the claim text.