Method for inserting an anchoring element within a bone
AssigneeMedevelop AB
InventorPer-Ingvar Branemark
Life of this patent
Estimating the term…
Abstract
An anchoring element for supporting a joint mechanism is disclosed. The anchoring element is substantially rotationally symmetrical, at least partially hollow, and includes a material which is compatible with the tissue of a bone. The anchoring element has a surface which can be at least partially osseo-integrated with the tissue to achieve permanent endosteal anchorage in the longitudinal axis of the bone. The anchoring element is applied within the bone by: cutting the bone close to its joint to expose the marrow cavity of the bone; forming a space in the marrow cavity close to the joint; applying a guide sleeve in the space; and screwing the anchoring element into the marrow cavity while using the guide sleeve to center the anchoring element.
Claims7
A method of applying an anchoring element within a bone, said anchoring element comprising a sleeve-like body for engaging a marrow cavity of said bone, a flange attached to one end of the sleeve-like body, a guide sleeve for guiding the sleeve-like body into said marrow cavity, and means for locking the guide sleeve and the flange together, the method comprising the steps of:
- (a) cutting said bone close to a joint thereof to expose said marrow cavity of said bone;
- (b) forming a space in said marrow cavity close to said joint;
- (c) applying said guide sleeve in said space;
- (d) screwing said anchoring element into said marrow cavity while using said guide sleeve to center said anchoring element;
- and
- (e) locking the guide sleeve and flange together.
A method for applying an anchoring element within a bone, said anchoring element comprising a sleeve-like body for engaging a marrow cavity of said bone, a flange attached to one end of the sleeve-like body, a plurality of radially extending teeth located on said flange for contacting said marrow cavity, and a guide sleeve for guiding said sleeve-like body into said marrow cavity, the method comprising the steps of:
- (a) cutting said bone close to a joint thereof to expose said marrow cavity of said bone;
- (b) forming a space in said marrow cavity close to said joint;
- (c) applying said guide sleeve in said space;
- (d) screwing said anchoring element into said marrow cavity through a central hollow region of the guide sleeve;
- and
- (e) locking said anchoring element within said marrow cavity by bringing said radially extending teeth into contact with said marrow cavity.
Dependencies are inferred from the claim text.