Abstract: A timer housing has a single compartment. The cams and electrical switches, that are responsive to the cams, are carried in the compartment as well as the motor that drives the cams without any physical electrical barrier separating them. Electrical bussing bars are carried on the outer surface of the housing to provide connections of selective ones of electrical terminals that are electrically connected to the electrical switches. Electrical bussing pins electrically connect the motor to selected ones of the electrical bussing bars so as to electrically connect the motor to selected electrical terminals.

Abstract: There is provided a surgical tool comprising an elongated rod of arcuate shape and a handle which is alternatively releasably affixable to one end or the other end of the rod. An eyelet for receiving an end of the anterior cruciate ligament implant or graft is provided in at least one of the ends of the rod. When the handle is connected to one end of the rod, the rod can be carefully pushed through the intercondyloid fossa of the femur from the anterior side to the posterior side thereof so as to thread it around the tissues therein and adjacent thereto, whereby to form a tunnel through the knee joint. Then the handle is removed from said one end and is connected to the other end of the rod. The implant is extended through the eyelet and then the rod is pulled through and beyond the posterior side whereby to draw the implant through the tunnel.

Abstract: An apparatus for transporting a patient from a zone having one level or type of contamination to a zone having a lesser level of such contamination, while minimizing the likelihood of contamination from the first zone being carried by the transport apparatus into the second zone. The apparatus includes a patient transport stretcher provided with means for locking it in end-to-end relationship with a wheeled surgical bed. The bed and stretcher are provided with rollers by which a patient-carrying litter may be easily moved from one to the other.

Abstract: The switch for timer is comprised of a single pole, double throw switch. The switch includes a plurality of contact arms, the two outer arms being substantially fixed in disposition while a center arm is capable of movement therebetween to positions of contact. A slot extends in substantially a longitudinal direction from one end of the center arm. The slot provides a demarcation between the contact carrying portion of the center arm and a portion adapted to be connected with an actuator through a spring. Movement of the actuator imparts movement to the center arm by snap action from one stable position of contact to another. However, up to the instant of a break as the actuator passes through an over center position the slot permits the contact carrying portion to maintain good contact pressure against the contact at one of the positions.

Abstract: The timing apparatus includes timer motor means having a rotatable output shaft rotatable through a revolution in a prescribed period of time, switching means adapted to be alternately switched between at least two discrete positions for respectively operating corresponding electrical output devices, indicating means operatively connected to the output shaft for movement in unison with the output shaft and for selective independent movement with respect to the output shaft in response to manual adjustment for adjustably setting the times at which the switching means will be operated to effect such switching between the electrical output devices, and actuating means operatively connected to the switching means and adapted for periodic movement between opposed first and second positions in response to displacement of the indicating means.

Abstract: A slug is disposed adjacent a rotor of an induction type motor. The slug is of a "ferrous" material such that the attraction between it and the magnetic poles of the rotor creates at least side and preferably both side and end loading of opposed ends of the rotor shaft within its supporting bearings. The slug, disposed stationarily in spaced relation to the rotor, is of a length approximately equal to the length of a chord through adjacent magnetic poles. The action of the slug is to reduce bearing rattle in a rotating member.

Abstract: A surgical instrument formed by a handpiece assembly and a removable tool assembly. The handpiece assembly includes a housing having integrally interconnected grip and nose portions which are of tubular construction and are positionally related so that the longitudinal direction of the nose portion extends at an angle of 40.degree. with respect to the longitudinal direction of the grip portion. The grip portion contains first and second removable cartridge units, with one cartridge unit containing a motor and the other cartridge unit containing a speed reducer. The tool assembly includes an elongated rotatable tool which is axially confined by and rotatably supported on an elongated support sleeve. The rearward end of the support sleeve is connectible to the front end of the nose portion by a bayonet-type coupling, which also permits the rearward end of the tool to be nonrotatably coupled to a drive shaft rotatably supported in the nose portion.

Abstract: Chuck for a gear reduction surgical rotary driver. There is provided for a controlled speed surgical driver an automatically releasable chuck for grasping tools of a very small diameter such as the wire used in bone pinning. In a driver having a conventional high-speed drive motor and speed reduction means, there is provided a frustro conical ramp, of generally circular cross section, and diverging outwardly toward the working end of the tool. A wire carrier is arranged for longitudinal sliding movement in the end of said tool and having a portion thereof projecting beyond said tool. Said wire carrier receives the wire centrally therethrough and carries three gripping devices which act between the wire and said ramp. Two of said gripping devices are preferably of ball shape and the third thereof is of generally disk shape with a rounded periphery whereby to project between said balls and engage a wire or other tool of small diameter.

Abstract: An elongated relatively rigid member is removably attached by securing means to a side element of a wheeled patient carrier, such as a stretcher, so that said elongated member is in a relatively upright position. Hanger means are provided at the top of the elongated member for supporting engagement with the hanger bail of a bottle for suspending the bottle in an inverted position so that its contents can be delivered, as through a tube, to a patient on a stretcher. A clamp means is adjustably secured to the elongated member, and strap means is fixedly connected at one end to said clamp member and releasably connected at its outer end to said clamp member for surrounding and firmly holding the bottle against said clamp member.

Abstract: A three dimensional implantable bone brace having a pair of elongated integral flanges connected along one lengthwise edge of each and disposed substantially at right angles to each other. One of said flanges has a plurality of spaced transverse slots which permit bending of the other flange in a direction parallel with said one flange. The other flange has a plurality of openings through which screw means can be inserted for fixing said brace against the lateral surface of a mandible, for example, when said one flange extends into a groove cut into said surface.