摘要:
The invention provides a trocar for penetrating body tissue and being placed, which allows for shortening the time required to seal an opening, regardless of the size of the opening. In a first trocar used in performing surgery, an incision member is detachably inserted into the cannula portion and a cutting blade with a shape of a nearly straight line is formed at the tip. In a second trocar, the tip part of the cannula portion that detachably inserts the incision member has a slanting cut end, and the slanting cut end is formed in a tapered shape.
摘要:
An apparatus that improves the appearance of a tape being wound on a tape reel includes a tissue which is positioned in parallel to an inner surface of a flange of the tape reel and pushes the tape edge against the inner surface. In this apparatus, the reel-up of the tape is performed while moving the tissue in the same direction as the reel-up direction of the tape or performed without moving the tissue.
摘要:
The present invention relates to a ball bearing that includes a plurality of balls and a retainer. The present invention also relates to a self-winding timepiece that is provided with a ball bearing. The present invention employs a retainer that is formed from a resin that contains filler as a component element of the ball bearing. Alternatively, the present invention employs a ball bearing that has a retainer that is formed from a resin that contains filler as a component element of the self-winding timepiece.
摘要:
The present invention relates to sliding parts, precision parts and timepieces and electronic equipment using those parts. Sliding parts are composed by a resin in which the degree of orientation of a fibrous filler is higher at the portion serving as the sliding surface than inside the sliding part, and the fibrous filler is oriented along the sliding surface on the sliding surface. Alternatively, precision parts are composed by a resin to which has been added carbon fibers for which a carbon compound is thermally decomposed to carbon in the vapor phase and simultaneously grown directly into fibers simultaneous to this thermal decomposition. Moreover, timepieces and electronic equipment are composed by these sliding parts or these precision parts.
摘要:
An automatically mountable heat sink for effectively conducting and dissipating heat of an electronic part comprises a heat dissipation plate formed by bending a rectangular metal plate of aluminum, copper or the like by means of pressing along the lines perpendicular to its longitudinal direction and a phase changing member made of a mixture of paraffin and epoxy resin having alumina as a heat conductive filler dispersed therein and applied to a ceiling surface of the heat dissipation plate. When the heat sink and the electronic parts are soldered on a printed wiring board by heating of reflow soldering, the phase changing member made of the mixture of paraffin and epoxy resin is softened and partly moves downward by the action of gravity to abut the upper surface of the electronic part, then is solidified, thereby connecting the heat dissipation plate and the electronic part with each other.
摘要:
A heat conductor used by being disposed between a heat sink and electronic parts mounted on a printed circuit board. The heat conductor is layered by a heat conductive layer, made of silicone gel with alumina as a heat conductive filler dispersed therein, and a potentially adhesive layer. The potentially adhesive layer consists of a hot melt layer, with alumina as a heat conductive filler dispersed therein, and a heat resistant film, to facilitate formation of the hot melt layer, adhered to the heat conductive layer on one face of the heat resistant film. The heat conductor is set on the electronic parts so that the potentially adhesive layer abuts them, and is made to adhere to the electronic parts due to heating by means of reflow soldering to reach the phase change temperature of the adhesive.
摘要:
A radiator member for efficiently releasing heat to the surrounding area. Cordierite powder and copper powder are mixed in a base material of dimethyl silicone. Near one surface of the radiator member the mixture ratio of copper powder is increased, while in the opposite surface the mixture ratio of cordierite powder is increased. By bringing the surface of the radiator member, containing a larger ratio of copper powder in contact with a heat generating element, heat from the heat generating element can be quickly conducted through the highly conductive copper powder. The cordierite powder, which is heated by heat transmitted through the copper powder from the heat generating element, converts the heat into far infrared rays, and then releases the rays to the atmosphere. Heat is thus efficiently released to the surrounding area.
摘要:
An electromagnetic shielding gasket attached to an end portion of a board member for contacting a desired contact portion and providing an electromagnetic shielding effect. The electromagnetic shielding gasket comprises a flat base portion linearly extending and having a width substantially equal to the thickness of the end portion of the board member. The gasket also comprises a plurality of pairs of resilient fingers arranged in an extending direction from the flat base portion. Each resilient finger transversely extends out from each side edge portion of the flat base portion. Some of the resilient fingers are bent downwardly toward one another, forming carrier strips for holding side walls of the board member therebetween. The other resilient fingers are bent downwardly or upwardly according to the position of the desired contact portion, forming resilient tabs for contacting the desired portion. The electromagnetic shielding gasket can be easily attached to the end portion of the board member using the carrier strips, and can contact any surface disposed relative to the board member using the resilient tabs.
摘要:
A release mechanism of a push-button tuner for use in car radios etc., comprising a manual tuning shaft which has a threaded portion, a release plate which is movably and turnably installed on a guide rod disposed in parallel with the manual tuning shaft and which is provided with a friction plate corresponding to the threaded portion, a core carriage which moves in the same direction as a moving direction of the release plate in interlocking with a movement thereof, and a release plate which is operated by depressing a push button. The friction plate and the threaded portion are held in engagement in the normal state, and the engagement is released when the push button is depressed.
摘要:
[Problems] To ensure the sharpness of a stripping knife whereby a part of a living tissue is incised and stripped while preventing a cut along the thickness direction.[Means for Solving Problems] A stripping knife (A) having a plate-shaped blade (3) having an edge (1) around the periphery, a shank (5) connected to the blade (3), and a handle (7) holding the shank (5) in the integrated state, wherein the blade (3) is composed of the edge (1) formed at the front end and a guide face (2) which is formed between the edge (1) and the front face (3b) of the connected plate constituting the blade (3) and brought into contact with the surface (13) of the remaining tissue.