Abstract: A stabilizer for the treatment of the fractures of the neck and the upper metaphysis of the femur. The stabilizer plate 1 has a groove 2 in its bottom part and bent between tapered holes 3 passing into oval holes at their lower parts and tapered holes 4 passing into round holes at their lower part at an angle such that, after bone bolts 8 are secured in the porous bone fragments, the angle between them and plate 1 is approximately the same as that formed between the neck and shaft of the bone. The bolts 8 have a high pitch cortex thread 9 at the end of a cylindrical core, the latter having an enlarged part 12 on the opposite side and of the same width as that of groove 2 and terminating in a protruding shank 13 with a machine thread, while bolts 5 each have an enlarged disc-like part 7 disposed between the cortex and machine threads and having a width equal to that of groove 2, and conical-shaped nuts 14 are screwed on to protruding shanks 6 and 13.
Abstract: The housing (1') of a writing point (1) or tracing element for manual ink writing or drawing instruments or for plotter or similar automatic or mechanical tracing machines is or can be linked with a shaft (40) that contains the ink and/works as a holder and/or storage. The housing has also a compensating system and a writing body (1") and if necessary other parts. It is provided with a supply system having in the area of the housing (1') several annular spaces (52 and 57) arranged axially one after the other and having different capillarities, their capillarity increasing one or more times in the direction of the writing body (1"). At least one annular space is conically shaped (53) and has a capillarity different from that of the writing body (1"), increasing in the direction of the latter.
Abstract: The present invention relates to a swing-type mechanical pencil wherein lead can be extended from a head member connected to an outer sleeve by swinging the outer sleeve to move a knocking hammer. The knocking hammer applies a lead-feeding action to feed the lead. A chuck shutting hammer is mounted between a spring bearing of a chuck ring sleeve retaining a chuck ring which is a component of the lead holder and a second spring connected with the chuck. An upward movement of the chuck shutting hammer forces the chuck into a chuck ring. This provides a positive action to shut the chuck preventing slipping of the lead when writing with the mechanical pencil. Manual advance of lead is provided by a slider in a recession an outer surface of the sleeve that engages the lead holder allowing the chuck to be manually opened to extend lead. The recess in the outer sleeve has a restriction that is engaged by a projection in the slider to lock the slider and lead holder against movement and prevent advancing of lead.
Abstract: Knee joint prosthesis of the type including a first and second element (1, 2) capable of being secured rigidly to the bones connected by the joint. The first element (1) carries a clevis (3) through which the axis XX' of a bending pivot (4) passes. The second element (2) carries an eye (5) introduced between the legs of the clevis (3). The pivot (4) includes a pin (41) carrying on the outside a bearing ring (43) fitted in the eye (5) of the joint and lateral stops (44, 44') with a diameter corresponding to that of the ring (43), respectively fitted in the clevis (3).
Abstract: A femoral stem surgical instrument system includes a handle component and an impact component, either one of which is selectively coupled with a femoral stem through a recess in the femoral stem, the recess providing separate facilities for the appropriate coupling of either of the components with the femoral stem, with each of the separate facilities being protected against damage when the other of the facilities is in use.
January 31, 1989
Date of Patent:
April 24, 1990
Robert G. Averill, Alfred J. Zarnowski, Matthew V. Lyons
Abstract: The intervertebral prosthesis provides a replacement for a damaged disk. The prosthesis is formed as a solid body of kidney-shape and is provided with a metal mesh covering for the ingrowth of tissue. Raised parts are formed on the opposite surfaces of the kidney-shaped body impart lateral stability when in situ.
Abstract: A case for a stick-type cosmetic, which includes: a tubular case body having an open end, the body having parallel planar opposite side faces constituting a part of the outer peripheral face thereof, each of the side faces having a through slot; a receptacle for receiving the proximal end of the cosmetic, the receptacle being slidably received in the tubular body; a pair of coaxial pivots connected to the receptacle, the pivots being slidably received respectively in the through slots; and a lid including a head portion and a pair of spaced parallel leg portions, each of the leg portions having outer and inner opposite faces, the leg portions being pivotally connected to the receptacle through the pivots, the lid being movable to a closed position. When the lid is in the closed position, the head portion of the lid closes the open end of the body, and the entire inner faces of the leg portions are mated respectively with the entire side faces of the body.
Abstract: An improved knee prosthesis of the four bar kind employing modified geometry of its links permitting the available degree of flexion to be increased to 143.degree.. A resilient leaf spring provides for extension bias at low angles of flexion, and biases the joint towards its fully flexed position at high angles of flexion. An improved lock for the joint is also provided.
Abstract: This invention pertains to an articulated prothesis for a joint such as for a finger. The prosthesis, capable of joining two bones, basically consists of two stems, each having a bearing component integral with one end which together form a hinged joint pivotable about an axis. A snap-on coupling integral with a hinge pin component is provided on each side of the bearing.
Abstract: This invention discloses, a therapeutic exerciser system, suspended from a horizontal trapezoid frame, with a movable balance point, connected by a cleated fiddle block pulley assembly, to an eye bolt installed in an overhead beam, or to the rolling traveler on an overhead track, and providing specially developed support sections. The disclosed therapeutic exerciser system, has a common upper body support section combined with, any one of three, inter-changeable, different types, of lower body supports; a bucket seat, a crotch piece, or a pelvic support. The range of motion available to the user is determined by their own ability and by the type of support that the bucket seat, crotch piece or pelvic support provides. This invention can also be used, by a treatment provider, to facilitate vestibular stimulation and sensory integration techniques and other treatment modalities, for users who may be unable to move themselves.
Abstract: A writing instrument includes a hollow body, a depression mechanism including a grip unit having an outer periphery radially displaceable in accordance with a gripping force exerted by writer's fingers, the depression mechanism including an axially displaceable member which moves axially in accordance with an increase of a pressure of due to radial displacement of the grip unit and which returns to its original position in accordance with a decrease of a pressure of the grip unit, the axially displaceable member being provided in association with the grip unit, a writing member including lead with a writing tip, and a writing member actuating mechanism for moving the writing tip to a writing position. The writing member actuating mechanism includes a normally open chuck, a lead holder positioned between the chuck and tip for constantly holding the lead, and an axially moveable tightening mechanism for engaging with and disengaging from the chuck and disposed on a side of the chuck opposite the writing tip.
Abstract: The present invention relates to a pine tar applicator for applying pine tar to an athlete's hands and sports equipment to provide a more secure grip. The pine tar applicator includes an elongate chamber disposed between two end caps. Alternately, the pine tar applicator includes an absorbant foam roller disposed on an elongate support element. A sleeve slips over the chamber or support element and is sealed shut when the applicator is not in use. A fastener is provided at one end cap to allow the applicator to be conveniently hung from a backstop, fence or the like, providing easy access for the player.
Abstract: A handwriting stabilizer (10) that when held in a trembling head, the hand steadies to allow smooth writing or printing. The stabilizer (10) includes a body having an outwardly extending stabilizing section (14) formed separately from a forwardly located curved gripping section (18) having a bottom surface (20) that is parallel to the writing surface. The gripping and stabilizing sections have a curved ink cartridge bore (32) that extends from the bottom surface (20) of the gripping section, curves upwardly and continues through the stabilizing section (14). Through this bore is inserted a curved ink cartridge (34) having a writing point (28). When in the writing mode, the stabilizing section is pushed forwardly allowing the writing point (28) to project through the bore (32) in the gripping section. Conversely, when the stabilizing section (14) is pulled outwardly, the writing point (28) retracts into the bore (32).
Abstract: A combination dumbell, hand-grip exerciser and handgoal device having two open cavity chambers each having a rim, and two projecting guidelanes inside each chamber, for directing a ball; and two cover lids to seal contents put within the chambers for weighting the device. The device includes actuators consisting of two arms, hinge structures, a removeable pivot rod and a plurality of single-loop coil springs, placeable into the inner arm's spring slots, for grip pressure of the device. All are secured together with a wing nut fixed to the extending end of the pivot rod. The device includes a ball, safety strap and rubber strap.
Abstract: A writing instrument has an inner barrel defining a compartment for storing writing leads, an outer front barrel encircling a forward portion of the inner barrel and an outer rear barrel encircling a rearward portion of the inner barrel. The outer rear barrel is angularly displaceable about the inner barrel but not axially displaceable relative thereto. An eraser holder is mounted within the rearward portion of the inner barrel and holds an elongate eraser which can be extended and retracted in response to angular displacement of the outer rear barrel in opposite directions.
Abstract: By implanting two prosthetic disc capsules side-by-side into a damaged disc of a human spine, both height and motion, including front-to-back bending, can be maintained. Each prosthetic disc capsule has a bladder enclosing a fluid containing a therapeutic material that is slowly diffusible through a semi-permeable membrane of the bladder. The fluid filling the semi-permeable membrane preferably is an aqueous solution that has gel-like properties that afford a viscosity and velocity-shear behavior imitating the natural rheology of intradiscal nuclear tissue. Those properties are obtained when the aqueous solution is of a mucopolysaccharide such as hyaluronic acid or soldium hyaluronate.
Abstract: An exercising machine having improved control permitting either an assist or a resistance of the exercise being performed comprises a first member exercisingly movable by a part of the body against the resistance of a weight or spring and a second member operable by another part of the body with the second member advantageously comprising a pivotable lever, with a linkage selectively engageable between the second member and the weight or spring in two modes in which force applied to the second member in the same direction respectively assists and resists movement of the first member.
Abstract: There is provided a new and useful playpen and exercise structure for an infant or small child comprising a lower frame section having a resilient surface supported therein, an upper frame section, a series of support members depending from the lower frame section for supporting the upper frame section, and a curtain secured continuously at the top to the upper frame section and at the bottom to the resilient surface.
Abstract: The present invention provides an automatic pencil which includes a coil spring sleeved around an inner tube, and a ring-shaped head portion carrying a lead pushing leg, the ring-shaped head portion being seated on an annular shoulder formed in the lower cone-shaped end of an outer casing, and the lead pushing leg begins to extend downward from the ring-shaped head portion at a location beyond the inner edge of the annular shoulder, thereby eliminating the need to provide a groove for receiving the upper side of the lead pushing leg.
Abstract: A lead feed mechanism for a mechanical pencil, in which a lead protruded by a certain length from a lead protection pipe housed in a bottom member attached at the bottom of the pencil is fed together with the pipe, and which comprises a lead chuck which is split in plural parts along the axis of the pencil and whose bottom sections pinch the lead on its outside circumferential surface. A sleeve contains the lead chuck so as to urge the lead chuck upwards by an elastic member. The sleeve includes an engaging portion provided on the inside circumferential surface of the top portion of the sleeve and engaged with an engaging portion provided on the outside circumferential surface of a bottom bearer for a lead pipe in which a spare lead is housed. A frame is provided around the sleeve which is fitted on the bottom with a pushing member which bears by the open top of the frame an elastic member provided between the bottom bearer and the frame.