Abstract: An instrument particularly adapted for use in dentistry but capable of a wide variety of other applications and including a divider-caliper type instrument typically having two members of equal length and substantially corresponding configuration pivotally secured to one another wherein opposite ends of each member is defined by different sized points. A scale format is formed on an exposed surface on at least one of the members and is based on the golden proportion of 1 to 0.618. Accordingly, a plurality of scale settings are disposed in predetermined spaced apart relation to one another based upon formulized calculations resulting in use of the caliper instrument in dental applications including direct oral procedures, dental laboratory techniques, cephalometric analyses as well as aiding in the establishment of arch form, tooth size and outline form as well as cusp-fossa proportions and the accurate and simple placement of developmental grooves.

Abstract: A penile prosthesis has a minor length proximal end member separable from the major length body member enabling insertion separately into the crus and the corpus cavernosum, respectively. An element of a quick engageable connector is formed on the adjacent ends of each member for joining the members together as a unit after each member is properly positioned in the patient. Several connectors are shown. Penile posture control is achieved in the major length body member by an axially extending multiple jointed spine within a silicone rubber casing. The spine is formed with alternate tubular and spherical links retained in an articulating assembly by an axial wire. Each spherical link is formed with a pair of diametric extensions projecting into the bores of adjacent tubular links and a diametric bore through the extensions through which the wire passes. The extensions serve to limit the articulation between adjacent links.

Abstract: A proportional divider comprises a reference index located between a pair of variable indices and a sectionalized threaded spindle having opposite end sections with reverse threads and of different pitches in a ratio approximating 1 to 0.618. Each spindle section threadingly engages a support for one of the variable indices whereby rotation of the spindle simultaneously adjusts the distances between each variable index and the reference, the distances being maintained in said ratio which is known as the "golden proportion". In one form of divider, the supports for the variable indices are retained for movement along a straight track, the reference and variable indices being portions of pointers extending perpendicularly to the track, the reference pointer being fixed and the variable pointers being mounted on said supports. A plurality of interchangeable reference pointers and variable pointers provide versatility to the divider.

Abstract: An endotracheal tube holder has a body which is secured by a pair of non-stretchable, head encircling straps to overlie the patient's mouth and portions of the cheeks. The straps, which are adapted to extend, one above and the other below, the patient's ears, have one-way tightening adjustability by pawl action. The body is integrally molded to incorporate a quick-acting clamp having three integral hinges, one hinge pivotally connecting a pair of jaws of the clamp and the other two hinges supporting the jaws from resilient arms for snap-action between open and closed positions. The clamp is operative to secure or release the endotracheal tube while the straps retain the body in position on the mouth against dislodgment.

Abstract: A reversible fluid pump is driven by a reversible electric motor under the control of a three position toggle switch wired for off, forward and reverse. One port of the pump is connected to a four position valve, one position of which is off. A hose to a drain receptacle or to an oil supply connects to the other port of the pump and hoses from engine crankcases connect to the three active ports of the valve. A two position valve adapts the pump for single engine use. The handle for selectively positioning each of the valves extends perpendicularly to the valve stem and when in off position aligns with the toggle. Safety latches of alternate constructions, with or without thumb screw tightening means, are each pivoted to the handle to engage the toggle and retain both the valve and toggle in off position when the system is not in use.

Abstract: A toothbrush has a bristle bearing head terminating the supporting stem thereof which extends from a handle. The head is disposed with its major axis at right angles to the length of the stem providing lateral extensions having bristles arranged for interproximal and free gingival margin engagement of both the maxillary and mandibular teeth. The supporting stem has a portion adjacent the head offset from a handle connecting end, the latter having a snap-in bearing connection with the handle providing easy separation and assembly and relative rotation of the handle with respect to the stem and head.

Abstract: A surgical cutter for preparing recipient sites for square scalp plugs in hair transplanting has four disposable blades removably attached to the four longitudinal sides of a core having a square cross-section of predetermined dimensions corresponding to the width of each blade and to the area at the surface of the hole to be excised. Each blade projects a predetermined distance beyond the end of the core equivalent to the required depth of cut and has a sharpened inclined cutting end edge extending from a point located at one side edge inwardly to the opposite side edge in guillotine fashion. The side of the blade adjacent the point is also a sharpened cutting edge extending inwardly therefrom.

Abstract: A head encircling tourniquet comprises a frame section for surrounding a work area of the scalp connected to an opposing pneumatic pressure applying section by a pair of headsize adjustable members. The frame section has a scalp contacting, uniform pressure applying, liner and is formed with a relatively large central opening providing access to the work area while the frame section and liner controls hemostasis in the work area by pressure exerted by the pneumatic section. Opposite elongated longitudinal sides of the frame and liner are resiliently movable toward each other to close an incision or wound located in the work area for suturing while the tourniquet remains in operative position on the head.

Abstract: A plurality of the elongated grippers are mounted in spaced apart, axially parallel, relation to project perpendicularly from opposing, substantially semi-circular, jaws of a pair of blades pivoted at a midportion thereof in scissor-fashion. A pair of lever arms are pivotally connected at one end and have handle portions formed at opposite ends thereof, said blades being symmetrically mounted between said lever arms with one end of each of the blades opposite said jaws pivotally attached to one of the lever arms for actuation thereby and for providing a mechanical advantage to close the jaws on application of a manual force applied to the handle portions. This closing brings the grippers of each jaw toward each other providing a compressive force on a breast requiring closed compression rupture when positioned therebetween.

Abstract: A support post of each alveolar retractor, which is adjustably supported in a clamp means terminating each opposite end of a transverse inferior bar of a surgical mouth gag for both axial rotational and sliding movement, has a superior arcuate bar which at its medial end terminates in an upper jaw engaging member and is mounted in the upper end of said post for lateral-medial sliding adjustment to provide increased surgical exposure. Several modifications of the superior arcuate bar provide pivoting of the upper jaw engaging member to insure an optimum fit. Additional modifications of the transverse inferior bar provide mandibular engaging members which coact with the upper jaw engaging members to mount the mouth gag in operative position independently of the tongue retractor, the latter being removably mountable from the front of the transverse inferior bar without disturbing the position of the mouth gag.

Abstract: An arcuate frame is sized to fit concentrically at a spaced distance about the head. Retractors, retaining the mouth and lips in open position for vertical and lateral exposure during mouth and jaw surgery, are adjustably suspended from the frame by an adjustable universal connector. The frame is mounted on an upstanding support from the operating table by connecting means providing adjustability thereof for universal spacial orientation. One or more beaded chains control the position and tension on each of the retractors, other than the tongue retractor, by releasably engaging anchors carried by connectors which are adjustably positioned along the frame. A single thumb screw secures and releases each anchor for simultaneous adjustment along the frame and at right angles toward and away from the frame. Other surgical applications requiring adjustable retractors are anticipated for the device.

Abstract: A surgical mouth gag, which has a transverse bar mounting an adjustable tongue retractor centrally thereof, has a clamp means at each opposite end thereof for adjustably supporting a pair of alveolar retractors which coact with the tongue retractors to retain the jaws in a desired open position. A post support portion of each of the alveolar retractors adjust both for axial rotation and longitudinal sliding in its respective clamp. A modified post construction provides telescoping means for finger pressure adjustability.