Abstract: An ultrasonic transducer assembly includes a transducer unit having an array transducer composed of a plurality of transducer elements for transmitting and receiving ultrasonic waves to effect electronic scanning, and a casing for housing the transducer unit therein. The casing has a contact surface to be brought into contact with an object to be examined when used. In the casing there is disposed a rocking mechanism for rocking the transducer unit angularly about a virtual rotative axis which is determined on an electronic scanning plane produced by the array transducer and located in the vicinity of the contact portion of the casing.

Abstract: An interchangeable set of wide orifice respiratory filter elements can be built into either a low resistance, high dead space embodiment for forced vital capacity testing or high resistance, low dead space embodiment for diffusion and residual air tests. A disposable 3M Filtrete.TM. pad is at the heart of all embodiments thus allowing extremely high levels of filtration efficiencies.

Abstract: The present invention relates to an apparatus for the treatment of or the inhibition of retinopathy of prematurity and to a method for treating or for inhibiting retinopathy of prematurity. The apparatus provided in accordance with the present invention includes a component or system for providing substantially only red light. Thus, light is provided having a wave band of approximately 612 nm or more. Furthermore, at least the patient's head is received in a device that limits the light which reaches the patient's eyes to the aforementioned red light. Thus, the patient is allowed to see substantially only red light.