Anterior ankle approach system and method
AssigneeWright Medical Technology, Inc.
InventorsRamon Luna, Meghan Kubacki, Terrance W. Strohkirch
Life of this patent
Estimating the term…
Abstract
A method of ankle replacement includes forming an anterior cut in a bone and forming a stem hole in a distal end of the bone. The stem hole is formed using a plurality of broaches positioned against the distal end of the bone through the anterior cut. A first portion and a second portion of a stem implant are inserted into the stem hole through the anterior cut in the bone. The first portion is coupled to the second portion using a coupling device inserted through the anterior cut in the bone. The stem implant is impacted into the stem hole using an offset impactor.
Claims20
A kit, comprising:
- an offset impactor comprising:
- a body including a longitudinal section having a first transverse arm coupled to a first end and a second transverse arm coupled to a second end;
- an impactor surface configured to be coupled to the first transverse arm, the impactor surface configured to receive a rotational impaction force;
- and
- an impactor body configured to be coupled to the second transverse arm, wherein the translational impaction force is transferred from the first transverse arm to the second transverse arm by the longitudinal section, and wherein the impactor body is configured to transfer the translational impaction force to a linear impaction force;
- and
- a plurality of broaches, wherein each of the plurality of broaches is configured to be coupled to the impactor body such that the linear impaction force is applied along a longitudinal axis of a selected one of the plurality of broaches.
A device, comprising:
- a body extending between a first surface configured to engage a tray implant and a second surface configured to engage an offset impactor, wherein an impaction force applied to the offset impactor is transferred to the tray implant;
- and
- a locking element configured to couple the tibial tray to body.
A driver, comprising:
- a body having a first half and a second half, the first half defining a first hole at a proximal end and the second half defining a second hole at a distal end;
- a drive coupling positioned between the first half and the second half of the body, wherein a portion of the drive coupling extends through the first hole and is configured to be coupled to a driver;
- a drive bit positioned between the first half and the second half of the body, wherein a portion of the drive bit extends through the second hole;
- and
- at least one gear positioned between the drive coupling and the drive bit, wherein the at least one gear is configured to transfer rotation of the drive coupling to the drive bit.
A system, comprising:
- a body extending between a first surface so as to engage a tray implant and a second surface arranged so as to engage an offset impactor, wherein the second surface defines a first groove corresponding to a first tray implant and a second groove corresponding to a second tray implant extend into the body, the first groove and the second groove being each sized and configured to engage the offset impactor;
- and
- a spring-loaded locking element configured to couple a tray to the body including a guide body defining a channel sized and configured to receive the spring-loaded locking element therethrough, wherein the channel defines a retention element at a proximal end.
Dependencies are inferred from the claim text.