Abstract: The present invention includes an apparatus and method for cutting a bone including a cutting assembly having a cutting blade, a cutting guide for guiding the shape of the cut in the bone, and a power source for powering the cutting blade. The cutting blade is moveable radially to vary the depth of the cut in the bone, and the cutting blade is capable of cutting around the circumference of the bone as well as in a longitudinal direction along the bone. A powered bone breaking device for completing the breaking of the weakened bone is also disclosed. A miniaturized version of the bone cutting apparatus can be used to cut out sections of a femur head from inside a femur body.

Abstract: The present invention includes an apparatus and method for cutting a bone including a cutting assembly having a cutting blade, a cutting guide for guiding the shape of the cut in the bone, and a power source for powering the cutting blade. The cutting blade is moveable radially to vary the depth of the cut in the bone, and the cutting blade is capable of cutting around the circumference of the bone as well as in a longitudinal direction along the bone. A powered bone breaking device for completing the breaking of the weakened bone is also disclosed. A miniaturized version of the bone cutting apparatus can be used to cut out sections of a femur head from inside a femur body.

Abstract: The present invention includes an apparatus and method for cutting a bone including a cutting assembly having a cutting blade, a cutting guide for guiding the shape of the cut in the bone, and a power source for powering the cutting blade. The cutting blade is moveable radially to vary the depth of the cut in the bone, and the cutting blade is capable of cutting around the circumference of the bone as well as in a longitudinal direction along the bone. A powered bone breaking device for completing the breaking of the weakened bone is also disclosed. A miniaturized version of the bone cutting apparatus can be used to cut out sections of a femur head from inside a femur body.

Abstract: The present invention includes an apparatus and method for cutting a bone including a cutting assembly having a cutting blade, a cutting guide for guiding the shape of the cut in the bone, and a power source for powering the cutting blade. The cutting blade is moveable radially to vary the depth of the cut in the bone, and the cutting blade is capable of cutting around the circumference of the bone as well as in a longitudinal direction along the bone. A powered bone breaking device for completing the breaking of the weakened bone is also disclosed. A miniaturized version of the bone cutting apparatus can be used to cut out sections of a femur head from inside a femur body.

Abstract: A bone lengthening mechanism is placed into a bone which is then lengthened by extending the mechanism. The mechanism is extended by effecting a rotational movement in a drive bolt which mates with a threaded portion in a section of the mechanism. The threads convert the rotational movement to a longitudinal force thereby lengthening the bone.

Abstract: This invention relates to a device and method to externally fix bone fractures and bone deformities by moving an arc gear member, which is attached to a first bone segment, through an arc shaped path so as to place the first bone segment in the desired position relative to a second bone segment.

Abstract: Apparatus for the fixation of bone fractures and the correction of congenital deformities uses an improved adjustment device that allows selective rotation or lateral translation of one external fixation ring with respect to other external fixation rings. The adjustment device attaches to a pair of first and second tie rod sections and shifts the first tie rod section with respect to the second tie rod section during adjustment. The adjustment device has a lateral slot that defines the path of movement for one of the translating tie rod sections. A travelling block connected to the moving tie rod section tracks the slot during use.

Abstract: An adjustable spring-loaded splint device is provided for supporting the ankle joint of a wearer. The splint device includes a pair of spaced lower struts and a pair of spaced upper struts pivotably connected to lower struts. The lower struts each include, at one end, a pivotably mounted head portion defining a cam surface, and the upper struts each include an adjustable spring assembly mounted therein, including a spring biased into engagement with the cam surface, for applying a quantifiable force tending to align the upper and lower struts. Upper and lower sets of cuff and strap members are connected between the upper struts which adjustably and releasably secure the splint device to the limb of the wearer using a detachable fastener including hooks and loops fastener sections. An adjustable footplate assembly is pivotably connected to the lower struts of the splint device for securely supporting the foot of the wearer in a selected relation with respect to the ankle.

Abstract: An adjustable spring-loaded splint device is provided for supporting the ankle joint of a wearer. The splint device includes a pair of spaced lower struts and a pair of spaced upper struts pivotally connected to lower struts. The lower struts each include, at one end, a pivotably mounted head portion defining a cam surface, and the upper struts each include an adjustable spring assembly mounted therein, including a spring biased into engagement with the cam surface, for applying a quantifiable force tending to align the upper and lower struts. Upper and lower sets of cuff and strap members are connected between the upper struts which adjustably and releasably secure the splint device to the limb of the wearer using a detachable fastener including hooks and loops fastener sections. An adjustable footplate assembly is pivotably connected to the lower struts of the splint device for securely supporting the foot of the wearer in a selected relation with respect to the ankle.

Abstract: An adjustable splint assembly comprises of an adjustable splint device and a fixator device, said adjustable splint device comprising a distal strut and a proximal strut pivotably connected to said distal strut, one of said struts having at one end a pivotably mounted head portion defining a cam surface, an adjustable biasing means mounted within the other strut and biased into engagement with said cam surface for applying a quantifiable force tending to align or approximate said distal and proximal struts, said fixator device comprising a right ring and a left ring, two or more surgical wires for implanting through a bone, with said wires connected at each end to the periphery of the right ring and crossing each other substantially near the center axis of said right ring, two or more surgical wires similarly connected to and crossing within the left ring, means for connecting said surgical wires to the right ring and left ring, and upper rod connected at one end to the left ring and at the other end to the r