Abstract: A toy includes a head, a tongue, and a driving unit. The head includes a skull, an upper jaw fixed to the skull, and a lower jaw rotatably coupled to the skull and facing the upper jaw to cooperatively define an oral cavity. The tongue received in the oral cavity includes a tongue tip and a guiding rod assembly. The driving unit includes a driving shaft fixed to the skull, a rotatable disk rotatably coupled to the driving shaft, a first lever pivotally coupled between the rotatable disk and the lower jaw, a second lever pivotally coupled between the rotatable disk and the guiding rod assembly and a motor. One end of the guiding rod assembly is received in the tongue. The motor drives the rotatable disk to rotate such that the lower jaw rotates away from the upper jaw and the tongue tip protrudes out from the oral cavity.

Abstract: A simulated eye is provided. The simulated eye comprises a main body comprising a front surface. An area is formed on the front surface for simulating pupil portion of an eye. A first ring portion is formed on the front surface and surrounds the area. The first ring portion is covered with a layer of reversible thermochromic material.

Abstract: A portable automated pipette includes a linear actuator, a flywheel, an optical coupler and a control circuit. The linear actuator has a step motor and is connected to a control circuit. The step motor has a rotor and is connected to a flywheel. The flywheel includes a plurality of apertures formed on an internal surface of the flywheel. An optical coupler is arranged on two opposite sides of the flywheel and is connected to the control circuit. By means of the step motor, the portable automated pipette can monitor the displacement of the threaded rod to accurately control the picking/dispensing volume of liquid. Furthermore, the portable automated pipette can detect whether an aspirator is removed and can alert the user to check whether there is a wrong operation.

Abstract: A portable automated pipette includes a linear actuator, a flywheel, an optical coupler and a control circuit. The linear actuator has a step motor and is connected to a control circuit. The step motor has a rotor and is connected to a flywheel. The flywheel includes a plurality of apertures formed on an internal surface of the flywheel. An optical coupler is arranged on two opposite sides of the flywheel and is connected to the control circuit. By means of the step motor, the portable automated pipette can monitor the displacement of the threaded rod to accurately control the picking/dispensing volume of liquid. Furthermore, the portable automated pipette can detect whether an aspirator is removed and can alert the user to check whether there is a wrong operation.

Abstract: A wrist type bloodpressure monitor (1) is provided with an interface connector (16) for calibration purposes. The correct values of the blood pressure are measured with a calibration device (20) including an upper arm blood pressure measuring monitor (11). The values (D′, S′) measured in this way are used to recalibrate the wrist type blood pressure monitor (1). The wrist type blood pressure monitor (1) is therefore provided with an editable memory (5) for the purpose of recalibration.