Abstract: An epoxy applicator having a housing for receiving epoxy material to be spread against a floor wall interface, said housing having a bottom open end and a partially open back end; supports on the housing for supporting the housing on the floor and against the wall; and handles on the housing such that the housing may be moved along the floor and against the wall such that epoxy material is applied to the floor and the wall through the open bottom end and the partially open back end forming an L-shaped layer of epoxy material on the floor and against the wall.

Abstract: Disclosed is an interdental tooth cleaning appliance for use in cleaning a space formed between adjacent teeth. In order to clean more effectively as compared with a known appliance, the cross-sectional shape of the bristles as seen in a plane perpendicular to the longitudinal axis of the brush is such as to provide three circumferentially spaced groups of bristles which are longer than the remaining bristles. The interdental tooth cleaning appliance of this invention is provided with a guide which makes it a more convenient one. It also has a device for injecting a liquid medicine.

Abstract: In a device for aligning and guiding a reciprocatingly movable drill rod (11) for drillling a hole (A', B') through at least either the tibia (B) or the femur (A) forming the knee joint, the hole being intended to receive one end of an anterior cruicate ligament, which is then attached to the bone. The device includes a first tube-like aligning and guiding element (5) which is intended to be introduced into and aligned in the space between the condyles of the femur (A) over the plateau of the tibia (B) and the ends of which are spaced apart at a distance corresponding to the length of the cruciate ligament, and a second aligning and guiding element (9) which is in line with the first element and located externally of the aforementioned space, and which is located from the first element at a distance which is at least partially bridged by a part of the tibia or femur located adjacent the space.

Abstract: A concentric, isokinetic exercise apparatus providing accommodating resistance to the exercising user, while maintaining constant speed. The user exercises on a wheel, crank, lever or similar device. The power exerted by the user is applied directly or coupled by means of gears or chains to a rotating brake assembly comprising a braking rotor and a threaded hub. The threaded hub meshes with a threaded axle, turned by a reference motor at a selected speed. When hub and axle rotate at the same speed, the hub does not change its axial position. Any difference of rotational speed between axle and hub results in axial movement of the hub. Whichever of the two speeds is the larger determines the direction of axial movement. If the speed of the hub exceeds that of the axle, the hub with its attached brake rotor is moved towards the brake stator, thereby causing braking action.

Abstract: A prosthesis and a surgical procedure (process) therefore are provided having a relatively thin plate fitted to a resected portion of the tibial plateau with the plate fitting uniformly around a major portion of the calcareous bone of the cortical wall. A pin on the under side of the plate aligned substantially with the axis of the intramedullary canal of the tibia fixes the plate against transverse relative motion between the plate and plateau, and blades or keels also on the under side of the plate are aligned maximum density (strength) of the cancellous bone of the plateau and fix the plate against rotation relative to the plateau. The surgical procedure of the invention employs a template to assure approximate positioning, and exact interrelationship between the plate and the fixing means.

Abstract: An elbow joint prosthesis having a metal humeral component, the head of which has flanges forming a recess in which a U-shaped plastic insert is nested. A boss projecting anteriorly from the head portion of a metal ulnar component is received within the insert with latero-medial clearance for laxity. A tubular plastic sleeve is received in axle holes in the ulnar boss and the legs of the plastic insert, and an axle spanning the flanges of the humeral component and extending through the sleeve bore connects the ulnar component to the humeral component for articulation. Clearance between the sleeve and the axle hole of the ulnar boss provides laxity up to nominal limits, beyond which elastic deformation of plastic at contact areas of the sleeve and insert restrains rotational and angular motions under supination, pronation and varus-valgus angulation of the arm, absorbing energy in the process.

Abstract: A prosthesis in the form of a hollow, cylindrical jacket for insertion in the gap between adjacent bone ends, the jacket being provided with reticulated sides and with toothed ends for engagement with the bone ends.

Abstract: A method and apparatus has two stages of acceleration establishing levels of kinetic energy in paired bodies contributing to a total system mass that is to be accelerated in a given time profile. A first stage of acceleration places the paired bodies in helical trajectories about a toroidal space. The second stage of acceleration has mutual cross coupling between the paired masses for the reflection of reaction forces resulting from the independently, but simultaneously, applied forces for enhancement of the acceleration and for mutual suppression of recoil within the apparatus.

Abstract: A device for stretching of an anatomical portion of the human body, thereafter holding such body portion in a stretched position for a period of time and thereafter returning such body portion to its original, unstretched position is disclosed. A horizontal base platform is provided with a generally vertical support member. The generally vertical support member is freely movable in a first direction with respect to the base platform member but is restricted from movement in a second direction opposite the first direction. Thus, the user of the device may position the subject anatomical body part in contact with the generally vertical support member and thereafter move the support member in the first direction until such time as the subject body part is optimally or maximally stretched.

Abstract: A case for stick cosmetics, particularly lipsticks is described, formed by an external base, an intermediate body, a stick holder and a cap, comprising improvements in the elements for coupling the parts together and the moulding of the parts. Methods are also described for moulding the lipstick itself directly inside the case.

Abstract: A writing implement such as a ballpoint pen combines a mechanism for selectively advancing and retracting a writing tip with a built-in roll of paper which can be dispensed and torn off. The paper roll can be mounted in a disposable cartridge which lessens the curl of the paper, facilitates removal and replacement of the paper roll, and aligns the free end of the paper with the corresponding slot in the barrel of the writing implement so that the free end of the paper need not be threaded through a narrow slot by hand.

Abstract: A controlled stiffness elongated implant for use in the hip or other appropriate body joint. In the instance of the hip, a ball member fixed to the femur is rotatably engaged with a cup-shaped socket member fixed to the acetabulum of the pelvic bone. The ball member is mounted on one end of a femoral component which has an elongated stem receivable in the intramedullary canal of the femur. The stem has a longitudinal channel therein which lies generally in the coronal plane when the stem is in the implanted condition. The thickness of the stem laterally of the channel is variable between the proximal and distal ends so as to affect the moment of inertia at any given location along the length of said stem to thereby achieve stem flexibility which substantially correlates to the flexibility of the bone.

Abstract: An apparatus is provided for the internal fixation of the spine. The apparatus comprises two sets of implants each consisting of a rod and a plurality of vertebral anchors. A set of implants is positioned on the spine on either side of the spinous process spanning the portion of spine to be immobilized. The rod is secured to the vertebral laminae by the vertebral anchors. The anchor includes a transpedicular screw member which is secured to a vertebrae. A rod support includes a cup which captures the screw and optionally permits micromotion between the rod support and screw. The rod support also includes a rod-receiving channel which captures the rod. A clamp is provided to secure the rod in the channel.

Abstract: A variable weight hand held exercise apparatus in the shape of a jump rope handle. The apparatus may be attached to a jump rope, providing variable weight handles or attached to hand straps providing variable weight hand held weights. The apparatus is hollow to allow a selected number of weights to fit snugly inside the handle. A removable end cap allows the user to easily vary the amount of weight added to the apparatus.

Abstract: A compact costmetic case which includes: a case body; a lid of the case body pivotally connected to the case body and adapted to be unfastenably fastened to the front portion of the peripheral wall of the case body; and a disengaging mechanism for unfastening the lid from the case body. The front portion of the peripheral wall of the case body has a recess having an end surface on which a first engaging member is formed. The lid has a second engaging member adapted to be engaged with the first engaging member. When the lid is in its closed position, the second engaging member is engaged with the first engaging member so that the lid is fastened to the case body. The disengaging mechanism is received in the recess of the case body. The disengaging mechanism has a sliding plate movable between outer and inner positions toward and away from the end surface of the recess.

Abstract: A mechanism and method for locking or securing a bearing insert to the base of a prosthetic implant. The prosthetic implant is for replacement of a portion of natural bone at a point of articulation. The implant includes a locking mechanism which enables the bearing insert to be removably secured to the base support. The locking mechanism includes a resilient locking clip which is predisposed on one side of either the bearing insert or the base support such that when the bearing insert and base support are assembled together, the clip extends between both the insert and the support to secure the two components together. To insert and/or remove the bearing insert from the support, the clip is caused to substantially fully recede into the component in which it is predisposed. The method of securing the insert to the base includes inserting a lip extending from one side of one of the components into a corresponding cavity in the other component.

Abstract: The agraffe is composed of a deformable metal plate having two projections, each of which is provided with a threaded eyelet. In addition, anchored pins are threaded into the respective eyelets and can be selected from a set of pins having different lengths. The deformable plate is arched between the projections and has a plurality of tacks fixably secured in place to increase adhesion of a ligament or tendon to a bone. The instrument for implanting or extracting the agraffe includes a pair of angular sector-shaped grooves of T-shaped cross-sections which are sized to engage with and under the heads of the pins in order to form a connection between the instrument and agraffe.

Abstract: Instruments for use in the surgical implanation of a knee prosthesis including a femoral alignment rod for insertion into the medulla of a femur through an access hole located between the femoral condyles. The rod is resiliently deformable so that once the rod is fully inserted within the medulla the portion of the rod located within the medulla contacts the inner walls of the bone defining the medulla and is thus caused to bend. The access hole through which the rod is inserted is sufficiently larger than the diameter of the rod so as to impose no physical constraint on the rod for allowing the portion of the rod which protrudes from the access hole to extend linearly along an axis the position of which is determined by points of contact within the medulla between the rod and the inner walls of the medulla.

Abstract: A prosthetic ankle having an elongated tubular shank, which provides bending. The shank is part of a monolithic ankle with the lower portion being a flexure joint. The flexure joint has a flexing post defined by an entrapment kerf. The entrapment kerf allows relatively free movement of flexure within defined limits in axial rotation, dorsi and plantar flexion, inversion and eversion. The kerf surfaces provide resistance to axial rotation during dorsiflexion.

Abstract: A multi-positionable arrangement of substantially parallel bars which form a substantial track for a ball having mounting means for disposing the track to a position accessible to the feet, legs, hands and arms of the body to be exercised and means for spacing the bars apart to provide for adjustment of contact engagement with ball surface so that repeated stroking of the ball on the track path requires striking contact at a particular point on the ball surface and thereby exercise of some specific body muscles and reflexes.