Abstract: The outer periphery of a head section (11e) of a medical screw (11) is provided with an inverse external screw thread (11h) that is formed in the opposite screw direction from that of a screw thread (11b) provided to a tip section (11a). An inverse internal screw thread (14a) provided to the leading end of a rod-shaped body constituting an extraction jig (14) is rotated in the opposite direction from the screw direction of the screw thread (11b) so as to be screwed onto the inverse external screw thread (11h) and thereby integrate the screw (11) and the extraction jig (14). The screw (11) is gently extracted from the bone fracture site (D) and is removed from the body by rotating the extraction jig in the reverse direction from the insertion direction of the screw (11).

Abstract: The outer periphery of a head section (11e) of a medical screw (11) is provided with an inverse external screw thread (11h) that is formed in the opposite screw direction from that of a screw thread (11b) provided to a tip section (11a). An inverse internal screw thread (14a) provided to the leading end of a rod-shaped body constituting an extraction jig (14) is rotated in the opposite direction from the screw direction of the screw thread (11b) so as to be screwed onto the inverse external screw thread (11h) and thereby integrate the screw (11) and the extraction jig (14). The screw (11) is gently extracted from the bone fracture site (D) and is removed from the body by rotating the extraction jig in the reverse direction from the insertion direction of the screw (11).

Abstract: Provided is a medical screw which can be readily extracted from bones after fusion of bone fractures or at replacement of the screw. The medical screw 11 has a screw thread 11b extending on the outer surface of a distal end portion of the screw 11 and an inner reverse thread extending on the inner surface of a proximal end portion 11d of the screw 11 and made in the opposite direction to the thread direction of the screw thread 11b. An outer reverse thread at a distal end portion of the removal jig 17 is engaged with the inner reverse thread of the screw 11, while being rotated in the opposite direction to the thread direction of the screw thread 11b. This engagement integrates the screw 11 with the removal jig 17. The removal jig 17 is then rotated in the opposite direction to the drilled direction of the screw 11 to detach the screw thread 11b of the screw 11 from the bone fractured region D.

Abstract: A graduated guide pin for selecting a screw for connecting a fractured bone is formed by a pin-like main body 11 of a radiotransparent metal and ring-like members 12 of a radioopaque metal. The ring-like members are arranged on an outer surface of the main body such that successive members are separated from each other by a distance equal to that of the ring-like members. On an X-ray image, by counting the number of dark portions corresponding to the ring-like members, a length of the fractured bone is measured, and a screw 20 having a suitable length is selected.

Abstract: A rack-assist type electric power steering device (10) uses a motor (1) as a drive source. The stator (11) of the motor (1) includes a stator core (13) having ring-like yoke portion (16) and teeth (17) projecting from the yoke portion (16) in the inner direction. In the stator core (13), the ratio (Wy:Wt) between the width (Wy) of the yoke portion (16) in the radial direction and the width (Wt) of the teeth (17) in the circumferential direction is 1:1.4 to 1.8.

Abstract: Brushless motor (1) which is an electric motor, is provided with a stator unit (3) inserted in and engaged with case (2). A part of the coating material (21) for coating the coil (17) of the stator unit (3) enters the receiving part (13) formed in the bottom part (2B) of the case (2); and the bottom part (2B) of the case (2) and the coil (17) are linked by this coating material (21). While coating, the coating material (21) is dripped from the opening side of the case (2) with the stator unit (3) in the inserted condition in the case (2).

Abstract: A tool for treatment of an ingrown toenail includes a tubular member having a length of about 1–2 cm and being tapered such that a diameter at a root is about 2 mm and a diameter at a tip is about 2 mm. Holes are distributed over the tubular member. The tubular member has a slit with saw-tooth edges and has a C-shaped cross section. A side edge of a nail plate is inserted into the slit and the saw-tooth edges secure the tubular member to the nail plate. A super elastic wire is inserted into one or more holes to fix the wire to the tubular member. An elastic force of the super elastic wire applied to the side edge of the nail plate is distributed substantially over a whole length of the side edge to correct the side edge into a flat shape.

Abstract: A motor 11 is used for an electric power steering apparatus or the like. A power supply section 31 from which a wire harness 33 electrically connected to a brush 23 is led along the axial direction of an output shaft 12 is provided on an end surface 25a of a bracket 25 of the motor 11 in one end side of the bracket. The power supply section 31 has a power supply terminal 44 provided in a brush holder unit 24 and extending in the axial direction, a connection hole 37 opened through the end surface 25a and containing the power supply terminal 44, a terminal unit 32 attached to the connection hole 37 and having a joint terminal 34, and an O-ring inserted between the terminal unit 32 and the end surface 25a. The end surface 25a is provided with a counter lock portion 29, and the motor 11 is positioned and fixed to a gearbox. As a result, wiring can be arranged in the axial direction without bending the wire harness.

Abstract: A tool for corrective treatment of an ingrown toenail with a super elastic wire including a tubular member 1 having a length of about 1-2 cm and being tapered such that a diameter at a root is about 2 mm and a diameter at a tip is about 2 mm. A plurality of holes 4 are formed in the tubular member 1 to be distributed over a whole surface of the tubular member 1. A slit 2 is formed in the tubular member 1 by saw-tooth edges 3 such that the tubular member has a C-shaped cross section. After inserting a side edge Na of nail plate N is inserted into the tubular member 1 via the slit 2, the tubular member is compressed by a pincher and the saw-tooth edges 3 bite on the nail plate N to secure the tubular member to the nail plate N. One end of a super elastic wire 5 is inserted into one or more suitably selected holes to fix the super elastic wire to the tubular member 1 in an easy, stably and effective manner.

Abstract: A motor 11 is used for an electric power steering apparatus or the like. A power supply section 31 from which a wire harness 33 electrically connected to a brush 23 is led along the axial direction of an output shaft 12 is provided on an end surface 25a of a bracket 25 of the motor 11 in one end side of the bracket. The power supply section 31 has a power supply terminal 44 provided in a brush holder unit 24 and extending in the axial direction, a connection hole 37 opened in the end surface 25a and containing the power supply terminal 44, a terminal unit 32 attached to the connection hole 37 and having a joint terminal 34, and an O-ring inserted between the terminal unit 32 and the end surface 25a. The end surface 25a is provided with a counter lock portion 29, and the motor 11 is positioned and fixed to a gearbox. As a result, wiring can be arranged in the axial direction without bending the wire harness.

Abstract: The ingrown nail correcting device is to correct ingrown toenails by using a plate-like member made from a shape memorizing alloy or shape memorizing resin material. A plate-like member (10) formed from a shape memorizing alloy or shape memorizing resin material is preliminarily made to memorize a specified shape at a specified temperature. The plate-like member (10) is bent in accordance with the bent portions of an ingrown nail (12) of a big toe (11) at room temperature, and adhesively bonded to the surface of the ingrown nail (12) with the aid of an adhesive agent. The atmospheric temperature is elevated to the specified temperature, whereby the ingrown nail (12) is corrected by the restoring force of the plate-like member (10) directed toward the arrows..quadrature.

Abstract: An electric motor structure is shown in which a yoke supporting an armature shaft is fixedly secured to a bracket with set bolts passing through the yoke in the axial direction and in which the distances between a pair of brushes and a pair of internal terminals connected thereto are substantially equal to each other. In a base unit, set bolt through holes for allowing the penetration of a pair of set bolts and a pair of brush holders are disposed on diameter lines perpendicular to each other, and further, a pair of internal terminal plates are disposed to straddle the outer circumference of one set bolt. The inserting tip portion of a coupler unit equipped with external terminal plates electrically connected to the internal terminal plates is branched into two sections. When the coupler unit is connected to the internal terminal plates the set bolt is positioned between the branched sections of the coupler unit.

Abstract: A waterproof electric motor structure in which a yoke 5 is covered with a bottomed cylindrical waterproof cover 12. An open end edge portion 12a of the waterproof cover 12 is internally engaged with a recessed groove portion 10b of a pump bracket 10 by being abutted thereagainst and sealed by a seal member 13. Through holes 5d, 12c are defined in the yoke 5 and the waterproof cover 12, respectively, and a locking cylinder 12d is formed in the cover side through hole 12c. A coupler 14 assembled to pass through both the through holes 5d, 12c is supported by the locking cylinder 12d in a removal prevention state. Further sealing is made by interposing a seal member 16 between a cover side stepped portion 12f and a coupler side stepped portion 14d.

Abstract: A method of winding an armature coil, wherein out of slots (S1-S12) of an armature core (12), slots (S5, S8) away from eccentric portions (13a, 14a) of first and second balancers (13, 14) which are disposed at opposite sides of the armature core (12) are designated as the slots in winding starting positions, respectively, and coils (16) are wound from the slots (S5, S8) into slots (S2, S11), so that the coils (16) are not brought into contact with the eccentric portions (13a, 14a).

Abstract: A monocrystal growing apparatus having a separator provided in a chamber-defining housing for separating the part of a polycrystal rod supported by a vertical shaft, to produce a melt between the polycrystal rod and a seed crystal, from the doping gas atmosphere used during the melting operation. The separator is open to the chamber near the melt and a device passed an inert gas into the separator to prevent the doping gas from invading the chamber. The apparatus produces a monocrystal rod of a constant resistivity along its rod.