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US 7,789,885 B2Granted
Instrumentation for knee resection
AssigneeBiomet Manufacturing, LLC
InventorRobert Metzger
Life of this patent
Estimating the term…
Abstract
A modular sizing device for a bone. The sizing device includes a sizer base positionable relative to the bone, a stylus, and a coupler operable to magnetically couple the base to the stylus for measuring a size of the bone.
Claims38
A modular sizing device for a bone comprising:
- a sizer base positionable relative to the bone;
- a stylus including a handle, a tip, and a plate positioned between the handle and the tip and made of magnetic material and having a first elongated planar surface;
- and
- a coupler operable to magnetically couple the base to the stylus for measuring a size of the bone, wherein the coupler includes a leg for rotatably coupling to the sizer base and an arm for engaging the stylus, the arm having a second elongated planar surface that extends generally perpendicular relative to a longitudinal axis of the leg, one of the stylus and the arm having a cavity that nestingly receives a magnet that magnetically attracts the first and second elongated planar surfaces.
1 more element
A kit of surgical components for femoral sizing, the kit comprising:
- a stylus;
- a sizer base;
- a coupler for coupling the sizer base to the stylus;
- a magnet that is received in a cavity of the coupler and that magnetically attaches to the stylus, the stylus being slidably translatable along the coupler during femoral sizing;
- and
- a spring-loaded handle for quick-release coupling with the sizer base.
3 more elements
A method of sizing a bone using a modular sizing device, the method comprising:
- positioning a sizer base relative to the bone, the sizer base having a coupler including a leg that selectively translates relative to the sizer base, the coupler having an arm extending from the leg;
- magnetically coupling a stylus to the sizer base, the stylus including a handle, a tip and a plate made of magnetic material;
- moving the tip of the stylus to a desired position relative to the bone while slidably advancing the plate of the stylus along the arm of the coupler;
- and
- measuring a size of the bone based on a location of the tip of the stylus.
2 more elements
Dependencies are inferred from the claim text.