Abstract: A single-layer hollow container includes: a resin composition that is formed of 60 to 90% by mass of polyolefin, 2 to 35% by mass of meta-xylylene group-containing polyamides, and 5 to 30% by mass of modified polyolefin. The meta-xylylene group-containing polyamides are dispersed insularly in the polyolefin, and in a case where each of a vertical length and a horizontal length of the meta-xylylene group-containing polyamide in an initial state is 1, the vertical length of the meta-xylylene group-containing polyamide in the hollow container ranges from 3.3 to 15.8 and the horizontal length ranges from 0.5 to 2.0.

Abstract: An injection aid for use with an injection device, such as a safety syringe, for example, is disclosed. The injection aid employs a flexible clip-based design to compensate for manufacturing tolerances associated with the injection device. The injection aid includes a body and a lever mounted to the body, the lever being configured to rotate about the body. The injection aid may further include gears rotate with rotation of the lever, and which function to remove a needle shield from the injection device. The body positions the injection device so as to ensure consistent injection depth.

Abstract: A single-layer hollow container includes: a resin composition that is formed of 60 to 90% by mass of polyolefin, 2 to 35% by mass of meta-xylylene group-containing polyamides, and 5 to 30% by mass of modified polyolefin. The meta-xylylene group-containing polyamides are dispersed insularly in the polyolefin, and in a case where each of a vertical length and a horizontal length of the meta-xylylene group-containing polyamide in an initial state is 1, the vertical length of the meta-xylylene group-containing polyamide in the hollow container ranges from 3.3 to 15.8 and the horizontal length ranges from 0.5 to 2.0.

Abstract: An injection aid for use with an injection device, such as a safety syringe, for example, is disclosed. The injection aid employs a flexible clip-based design to compensate for manufacturing tolerances associated with the injection device. The injection aid includes a body and a lever mounted to the body, the lever being configured to rotate about the body. The injection aid may further include gears rotate with rotation of the lever, and which function to remove a needle shield from the injection device. The body positions the injection device so as to ensure consistent injection depth.

Abstract: In a rotary head drum apparatus having a magnetic head attached to a rotary drum member and connected to a coil of a rotor of a rotary transformer so that a signal is transmitted between the magnetic head and a stationary drum member through the rotary transformer, a resilient contactor is mounted on one of the rotary drum member and the rotor of the rotary transformer, and a contact portion is formed on the other of the rotor and the rotary drum member so as to be contacted by the resilient contactor when the rotary drum and the rotary transformer are assembled with each other. The apparatus further includes an aperture bored through an end face of the stationary drum member and a ground contact pin which is flexible in its radial direction is inserted into the aperture for connecting the stationary drum member to ground.

Abstract: In a rotary head drum apparatus having a magnetic head attached to a rotary drum member and connected to a coil of a rotor of a rotary transformer so that a signal is transmitted between the magnetic head and a stationary drum member through the rotary transformer, a resilient contactor is mounted on one of the rotary drum member and the rotor of the rotary transformer, and a contact portion is formed on the other of the rotor and the rotary drum member so as to be contacted by the resilient contactor when the rotary drum and the rotary transformer are assembled with each other. The apparatus further includes an aperture bored through an end face of the stationary drum member and a ground contact pin which is flexible in its radial direction is inserted into the aperture for connecting the stationary drum member to ground.

Abstract: Isocarbostyrils of the formula ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, and R.sub.3 and R.sub.4, same or different, individually means hydrogen or an alkyl, aralkyl or cycloalkyl group provided at least either one of R.sub.3 and R.sub.4 should not be hydrogen, or R.sub.3 and R.sub.4 together with the adjacent nitrogen atom may form a heterocyclic ring, having anti-arrhythmic activity and low toxicity are prepared by reacting a 4-substituted isocarbostyril derivative of the formula ##STR2## wherein R.sub.1 is the same as defined above and R.sub.2 represents ##STR3## or its functional equivalent, e.g. --Ch.sub.2 --CH(OH)CH.sub.2 X in which X represents a halogen atom, with an alkyl amine of the general formula ##STR4## wherein R.sub.3 and R.sub.4 are same as defined above..