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US 10,307,265 B2Granted
Implant with deployable blades
AssigneeInstitute for Musculoskeletal Science and Education, Ltd.
InventorJames A. Sack
Life of this patent
Estimating the term…
Abstract
An implant is described for use in the spine, including two blades attached to a blade actuating member. Each blade includes a protruding portion that engages a corresponding channel in the blade actuating member. The blade or blades are extended or retracted when the blade actuating member is translated along a first axis. Each blade is retained in channels within the blade actuating member, and channels within the body of the implant, that constrain each blade to move in a direction near perpendicular to the direction of motion of the blade actuating member.
Claims20
An implant, comprising:
- a body, the body having a first axis;
- a blade, the blade having a retracted position in the body and an extended position where the blade extends outwardly from the body;
- a blade actuating member that can translate through the body in directions parallel to the first axis;
- the blade actuating member including a channel, wherein the channel extends between a superior surface and an inferior surface of the blade actuating member, and wherein the channel defines a first channel direction and an opposing second channel direction;
- the blade including a protruding portion configured to fit within the channel;
- wherein when the blade actuating member is moved in a first direction along the first axis, the protruding portion follows the channel in the first channel direction and the blade moves towards the extended position;
- and
- wherein when the blade actuating member is moved in a second direction opposite the first direction, the protruding portion follows the channel in the second channel direction and the blade moves towards the retracted position;
- wherein the blade has an outer edge, an inner edge disposed opposite the outer edge, a first lateral edge, and a second lateral edge disposed opposite the first lateral edge;
- and
- wherein the blade is only in contact with the body along the first lateral edge and the second lateral edge.
8 more elements
An implant, comprising:
- a body, the body having a first axis;
- a blade, the blade having a retracted position in the body and an extended position where the blade extends outwardly from the body;
- the blade having an outer edge, an inner edge disposed opposite the outer edge, a first lateral edge, a second lateral edge disposed opposite the first lateral edge, a distal face, and a proximal face;
- wherein the first lateral edge of the blade and the second lateral edge of the blade are in contact with the body;
- a blade actuating member that can translate through the body in directions parallel to the first axis;
- wherein a portion of the proximal face of the blade is in contact with the blade actuating member;
- wherein the distal face of the blade is disposed away from the body;
- and
- wherein the blade actuating member can move the blade between the retracted position and the extended position;
- wherein the body includes a first retaining channel and a second retaining channel disposed opposite the first retaining channel, wherein the first lateral edge of the blade is received in the first retaining channel, and wherein the second lateral edge of the blade is received in the second retaining channel.
7 more elements
An implant, comprising:
- an outer structure, the outer structure having a first axis;
- a blade, the blade having a retracted position in the outer structure and an extended position where the blade extends outwardly from the outer structure;
- a blade actuating member that can translate through the outer structure in directions parallel to the first axis;
- wherein the blade actuating member is coupled to the blade and can move the blade between the retracted position and the extended position;
- the outer structure including a first end having a threaded opening having a first longitudinal axis and a guide opening adjacent the threaded opening and having a second longitudinal axis that is non-aligned with the first longitudinal axis, the guide opening receiving a driven end of the blade actuating member;
- a locking screw secured within the threaded opening;
- wherein the locking screw can be rotated between an unlocked rotational position in which the driven end of the blade actuating member can pass through the guide opening and a locked rotational position, in which the driven end of the blade actuating member is prevented from moving through the guide opening.
4 more elements
Dependencies are inferred from the claim text.