Abstract: A bone grinder is provided herein. The bone grinder may have a grinding chamber, an intermediate zone, and a primary cutting element and a secondary cutting element. The intermediate zone may have a first wall and a second wall within the grinding chamber, and the intermediate zone may separate the primary cutting element from the secondary cutting element. The first wall and the second wall may slope inward such that a distance between the first wall and the second wall generally decreases from the primary cutting element to the secondary cutting element. The primary cutting element and the secondary cutting element may be positioned within the grinding chamber to sequentially perform primary cutting operations and secondary cutting operations on a bone. A drive mechanism may operatively engage the primary cutting element and the secondary cutting element.

Abstract: A bone grinder is provided herein. The bone grinder may have a grinding chamber, an intermediate zone, and a primary cutting element and a secondary cutting element. The intermediate zone may have a first wall and a second wall within the grinding chamber, and the intermediate zone may separate the primary cutting element from the secondary cutting element. The first wall and the second wall may slope inward such that a distance between the first wall and the second wall generally decreases from the primary cutting element to the secondary cutting element. The primary cutting element and the secondary cutting element may be positioned within the grinding chamber to sequentially perform primary cutting operations and secondary cutting operations on a bone. A drive mechanism may operatively engage the primary cutting element and the secondary cutting element.

Abstract: A bone grinder utilizing a removable cutter head unit for maintaining the processing of bone and for substantially precluding the main body of the bone grinder from being exposed to bone tissue.

Abstract: The present invention relates to a method of forming a bone composite, comprising: providing bone tissue; grinding said bone tissue to form ground tissue; molding the ground bone tissue into a bone composite; applying a binder to the bone composite; applying a vacuum to the mold, and optionally milling or refining the bone composite to the desired shape. The present invention includes the use of a carbohydrate, water, cyanoacrylate and demineralized bone.

Abstract: A bone grinder utilizing a removable cutter head unit for maintaining the processing of bone and for substantially precluding the main body of the bone grinder from being exposed to bone tissue.

Abstract: Bone composite implants and the method of constructing bone composite implants are disclosed which may be used in the repair, replacement, and/or augmentation of various portions of animal or human skeletal systems. Furthermore, the bone composite implants of the present invention may be considered load-bearing implants which are incorporated into the skeletal structure of the patient.

Abstract: A method of forming a bone composite, comprising: providing bone tissue; grinding said bone tissue to form ground tissue; molding the ground bone tissue into a bone composite; applying a binder to the bone composite; applying a vacuum to the mold, and optionally milling or refining the bone composite to the desired shape. Additionally, bone tissue composites made therefrom are included. The composites may be, for example, a bone pin, screw, or prosthesis.

Abstract: The present invention provides a bone grinding apparatus, which comprises a grinding chamber, primary and secondary cutting elements positioned within the grinding chamber to sequentially perform primary and secondary cutting operations on the bone, and a drive mechanism operatively engaging the primary and secondary cutting elements. The apparatus also includes a bone supplying cylinder engaging the grinding chamber and adapted to transport the bone to the cutting elements at a consistent pressure. The apparatus also includes a sealing component designed to operatively engage the drive mechanism and to separate the drive mechanism from the cutting elements.

Abstract: The present invention relates to a method of forming a bone composite, comprising: providing bone tissue; grinding said bone tissue to form ground tissue; molding the ground bone tissue into a bone composite; applying a binder to the bone composite; applying a vacuum to the mold, and optionally milling or refining the bone composite to the desired shape. The present invention also encompasses bone tissue composites made therefrom. The composites may be, for example, a bone pin, screw, or prosthesis.

Abstract: A roller chain wear gauge having a pair of gauge members each having two different diameter gauges, one of the gauge members being stored in the other of the gauge members and a hollow handle for storing the gauge members, the handle including a cap for closing the open end of the handle. The cap and gauge members being interconnected to form a roller chain gauge for measuring the roller spacing on four different size roller chains.