Abstract: A disposable syringe has a needle seat with an upper segment adapted to be fitted with a needle cannula, and a lower segment retained in a passage of a barrel. A plunger has a stem portion movable in the passage, a deformable surrounding engaging portion in sealing contact with the passage so as to be moved by the stem portion to a position of use, and a surrounding abutting head which is moved towards and which is held by a grip segment in the needle seat when the surrounding engaging portion is depressed by an edge portion of the needle seat by virtue of a continuing depression force of the plunger, thereby permitting the needle seat to be brought into the passage for disposal.

Abstract: A vaginal suppository delivery device includes a pincer body having upper and lower clamp members that cooperate to confine a passage, a sleeve member, and a push rod. The clamp members have connecting and clamp end sections. The sleeve member is movable toward the connecting and clamp end sections of the clamp members so as to permit the clamp end sections to move away from and toward each other, thereby permitting a suppository to be disposed and clamped in a drug receiving groove in the passage. The push rod has an operating end that is operable so as to enable a drug pushing end to push the suppository to move out of the passage after the pincer body has been inserted into a vaginal cavity, thereby delivering the suppository into the vaginal cavity.

Abstract: A stethoscopic apparatus with a plurality of improved chestpieces is disclosed. Each chestpiece in the stethoscopic apparatus of the invention includes a base member and a resonance membrane connected to the base member. The resonance membrane has a plateau-shaped protrusion formed thereon which forms a sealed resonance chamber between the base member and the resonance membrane. The resonance membrane is preferably made of plastic polymers and the periphery of the resonance membrane is thermal set to form a relatively stiff rim for engaging with the base member of the chest member. Since the resonance membrane provides a compulsory resonance chamber during the operation of the stethoscopic apparatus, the resolution ability of the chestpiece is greatly improved.

Abstract: An electronic stethoscopic apparatus including: a housing with a main body having a plurality of switches and jacks electrically installed therein; an audio-signal amplifying device incorporating a pre-amplifying circuit, a low pass filter and a volume controller disposed in the main body and electrically coupled with the switches and jacks; a battery supply replaceably provided in the main body and electrically connected to the audio-signal amplifying device; an audio-wave guiding device having transducers disposed therein for converting audio waves into electric signals and positioned on top of the main body and electrically connected to the audio-signal amplifying device; a wireless radio wave transmitting device also disposed in the main body to receive the electric signals and transmit the same as radio signals; an upper cover of the housing device connected to the top end of the main body and to the audio-wave guiding device; and a body contact device communicatively connected to the audio-wave guiding

Abstract: A multi-functional radio/wire stethoscopic apparatus includes: a housing unit having a plurality of control switches and sockets provided therein for hand operation; a radio wave transmitting device and a wire transmission line disposed in the housing unit for signal transmitting operations; an audio-wave guiding device positioned on top of the housing unit for receiving sound waves; a plurality of microphones disposed in the audio-wave guiding device and electrically connected to the radio wave transmitting device and the wire transmission line; an upper casing detachably connected to the housing unit; and a chest piece with sound detecting arrangement functionally connected to an upper end of the upper casing; thereby, during auscultation and bed-side teaching, sound waves from a patient's body will be converted into electrical signals and transmitted for facilitating correct diagnosis through a radio/recorder set and an interface of audio wave control device electrically connected to the housing unit.