Abstract: A saw-blade for sawing living human bone during surgical operations, the saw-blade (1) presenting on at least one side (10) at least two saw portions (8, 9) and said saw-blade (1) having at least one inner space (14) through which coolant (18) is adapted to flow for cooling the saw-blade (1) during sawing. For efficient direct cooling of the saw portions (8, 9) and continuous cleaning thereof during sawing, the space (14) extends up to the two saw portion (8, 9) and is open between them in order, on one hand, to conduct coolant (18) to the saw portions (8, 9) for cooling them, and, on the other hand, to cause coolant (18) to emerge between the saw portions (8, 9) for carrying off bone residues or other saw residues in a direction away from the saw portions (8, 9).

Abstract: A dental tool with detachable saw blades and adhesively affixed abrasive strips on the distal ends of a U shaped handle for removing the solified resin in posterior and anterior teeth during the placement of porcelain and composite inlays while keeping the tongue and cheek away from the cutting surfaces. The primary function of the tool is provided by a finger rest to direct the tool force in a gingival direction with stability and control improving the function and safety of the tool.

Abstract: The bone saw guide of this invention allows precise perpendicular or angular cutting of a bone with a conventional bone saw. An inverted U-shaped blade guide portion positions the blade and an upstanding saw guide portion guides the neck of the saw. A plate connects the two portions. The invention allows a bone segment to be removed and the cut ends to be compressed together to shorten the bone.

Abstract: A bone saw guide apparatus and method for positioning sequential saw cuts facilitates the cutting of a wedge of bone, in the correction of an angular bone deformity. An arcuate saw blade having a shaft which is parallel to its cutting edge provides greater blade strength and better control of the cut.

Abstract: A patellar clamp and saw guide for preparing a patella to receive a prosthetic articulating surface on the patella's posterior side. A guide plate supports a saw block. The guide plate can be swiveled so that a sagittal saw can be presented to the patella from any desired angle. The saw block can be advanced or retracted axially so that more or less of the patella will be cut away by the saggittal saw. A scale enables the location of the proposed cut to be quickly and accurately determined. Storage apparatus in a handle of the clamp holds different specialized for use during surgery.

Abstract: The removal of prosthetic cement from the medullary canal of a patient's long bone such as the femur during replacement of a joint prosthesis.

Abstract: An osteotomy blade saw is provided in left-offset and right-offset embodiments for performing sagittal ramus osteotomies. The blade saw has first and second straight arm portions forming an obtuse angle between them, the end of the second arm terminating in a neck portion which angles acutely away from the plane containing the arms and terminates in an end portion on which a cutting blade is mounted. The blade lies in a plane parallel to the plane containing the arms and is offset to the right and left depending on the embodiment. Supplying reciprocating linear motion to the first arm allows the saw to be used in cutting bone. The blade saw in its two preferred embodiments can be used to score and cut the underside of the right and left inferior borders of the mandible, respectively, through incisions inside the mouth.

Abstract: A biradial saw including a biradial saw blade having an elongate, arcuate body with a cutting end that is constructed to penetrate a solid substance. The blade's body is formed with inner and outer arcuate surfaces whose curvature radii are substantially equal but oriented relative to offset axes of curvature. Also included is a means for producing oscillating motion, and a means for attaching the blade's rear end to the oscillating-motion-producing means.

Abstract: A bone saw guide apparatus and method for positioning sequential saw cuts facilitates the cutting of a wedge of bone, in the correction of an angular bone deformity. An arcuate saw blade having a shaft which is parallel to its cutting edge provides greater blade strength and better control of the cut.

Abstract: An endoprosthesis which comprises a flexible, collapsible, hollow device which can be filled after it is positioned within the bone structure. In the case of a prosthesis designed to replace the ball of the femur, the endoprosthesis has a ball portion, a neck portion attached to and communicating with the ball portion, a body portion attached to and communicating with the neck portion, and an access opening opposite the ball portion. A method for installing the endoprosthesis in the hip is also described, in which a portal is drilled through the lateral cortex of the femur at a location opposite the ball, the ball of the femur is removed, and the endoprosthesis is inserted through the portal. Finally, the invention provides a special tool that can be used for removing the ball of the femur through a portal in the lateral cortex without dislocating the hip.

Abstract: A device for guiding an osteotomy to be performed on the proximal end of a humerus that has a proximal sawguide alignable on a selected surface of the proximal end of the humerus for defining a saw line thereon; a radial arm connecting the sawguide to a distal mechanism for stably aligning the sawguide, the distal alignment mechanism has a pair of opposing lateral and medial epicondyle arms pivotally engageable with the lateral and medial sides of the distal end of the humerus, the epicondyle arms being pivotally mounted in a distal cross arm, the distal end of the radial arm being slidably mounted in the cross arm for distal to proximal slidable movement therein; the proximal end of the radial arm being rotatably connected to the sawguide through a proximal guide bar; the radial arm being supported above the humerus by the proximal guide bar and the epicondyle arms.

Abstract: A cutting guide for guiding a saw blade during the preparation of a femur for the implant of the femoral component of a knee prothesis includes guide surfaces for enabling the cutting of all four of the anterior femoral cut, the posterior femoral cut, the anterior chamfer and the posterior chamfer, fully and completely, with certitude and accuracy, while the cutting guide remains located and secured to the femur in a single position on a transverse surface located along the distal femur.