Method of assembling a modular prosthesis used for bone replacement
AssigneeHayes Medical, Inc.
InventorsPatrick M. White, Daniel E. E. Hayes, Jr., Robert-Jan Enzerink
Life of this patent
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Abstract
The invention provides a modular three-component assembly for replacing a portion of a patient's femur or humerus. A neck component attaches directly to a stem component that inserts into the bone, and a body component that also inserts into the bone is attached to the neck component and/or to the stem component. Methods for assembling the prosthesis are also provided, wherein the stem component is inserted within the body component, and the stem component is joined to the neck component. The prosthesis may be constructed from the components outside of the patient, or, components of the prosthesis may be inserted into the patient prior to final assembly of the prosthesis during surgery.
Claims27
A method of assembling a modular assembly that is used in the replacement of a portion of a bone, wherein the method comprises the steps of:
- a. providing said modular assembly, wherein said modular assembly comprises a neck component having a first tapered portion, a body component having a second tapered portion, and a stem component having a third tapered portion, said body component is shaped to receive said stem component within said body component, and said components are shaped to replace a portion of the bone;
- b. attaching said body component to said neck component or said stem component;
- c. inserting said stem component into said neck component so that the third tapered portion of said stem component is located within the first tapered portion of said neck component;
- and
- d. joining the stem component to the neck component.
A method of assembling a modular assembly with a self-tightening construction that is used in the replacement of a portion of a bone, wherein the method comprises the steps of:
- 1. providing said modular assembly, wherein said modular assembly comprises a neck component having a first tapered portion, a body component having a second tapered portion, and a stem component having a third tapered portion, said body component is shaped to receive said stem component within said body component, and said components are shaped to replace a portion of the bone;
- 2. attaching said body component to said neck component or said stem component;
- 3. inserting said stem component into said neck component so that the third tapered portion of said stem component is located within the first tapered portion of said neck component;
- 4. joining the stem component to the neck component;
- and
- 5. tightening said modular assembly within the patient's body.
A method of assembling a modular assembly that is used in the replacement of a bone structure, wherein the method comprises the steps of:
- a. providing said modular assembly, wherein said modular assembly comprises a neck component having a first tapered portion, a body component having a second tapered portion, and a stem component having a third tapered portion, said body component is shaped to receive said stem component within said body component, and said components are shaped to replace a portion of the bone structure;
- b. attaching said body component to said neck component or said stem component;
- c. inserting said stem component into said neck component so that the third tapered portion of said stem component is located within the first tapered portion of said neck component;
- and
- d. joining the stem component to the neck component.
A method of assembling a modular assembly that is used in the replacement of a portion of a femur, wherein the method comprises the steps of:
- a. providing said modular assembly, wherein said modular assembly comprises a neck component having a first tapered portion, a body component having a second tapered portion, and a stem component having a third tapered portion, said body component is shaped to receive said stem component within said body component, and said components are shaped to replace a portion of the femur;
- b. attaching said body component to said neck component or said stem component;
- c. inserting said stem component into said neck component so that the third tapered portion of said stem component is located within the first tapered portion of said neck component;
- and
- d. joining the stem component to the neck component.
A method of assembling a modular assembly that is used in the replacement of a portion of a humerus, wherein the method comprises the steps of:
- a. providing said modular assembly, wherein said modular assembly comprises a neck component having a first tapered portion, a body component having a second tapered portion, and a stem component having a third tapered portion, said body component is shaped to receive said stem component within said body component, and said components are shaped to replace a portion of the humerus;
- b. attaching said body component to said neck component or said stem component;
- c. inserting said stem component into said neck component so that the third tapered portion of said stem component is located within the first tapered portion of said neck component;
- and
- d. joining the stem component to the neck component.
Dependencies are inferred from the claim text.