Abstract: A sanitary lid includes a top portion and a side portion. The top portion has an aperture formed therethrough, and the side portion extends downwardly from the top portion. A rim-engaging annulus is formed between the top portion and the side portion. The rim-engaging annulus is configured to be releasably engagable with a rim of a can. A seal member is disposed on an inner side of the top portion at or near the aperture and projects downwardly therefrom. The sanitary lid is configured so that when the rim-engaging annulus is engaged with the rim of the can, the aperture is substantially aligned with an orifice of the can, and the seal member forms a seal with the orifice. Accordingly, the beverage in the can is able to flow through the orifice, across the seal member, and through the aperture without contacting the top of the can.

Abstract: A signal regulator regulates an auxiliary signal based upon a primary signal scaled by an external amplifier. The signal regulator receives the primary signal with an unscaled level. Processing circuitry monitors the unscaled level of the primary signal. The primary signal is then output to the external amplifier for scaling, either by amplification or attenuation. The primary signal with a scaled level is in turn received by the signal regulator from the amplifier. The processing circuitry monitors the scaled level of the primary signal from the amplifier, and then generates a gain factor based upon the unscaled level and the scaled level of the primary signal. An auxiliary signal is received by the signal regulator. Adjusting circuitry receives the gain factor from the processing circuitry and adjusts a level of the auxiliary signal based upon the gain factor. The auxiliary signal with the adjusted level is then provided to an external component, for example, a loudspeaker.

Abstract: An annulus sizer measures the size of a valve annulus during annuloplasty surgery. The annulus sizer includes a sizing portion for measuring the valve annulus and a coupling portion for attaching to a handle. The coupling portion is disposed on a proximal surface of the sizing portion. The sizing portion has a thickness on the order of about 0.1 inch. This relatively small thickness of the sizer facilitates minimally invasive annuloplasty surgery. For example, the sizer may be inserted through a relatively small intercostal incision. In addition, the relatively thin sizing portion minimizes optical distortion. The coupling portion may be disposed on the sizing portion at a location which is offset from the center of the sizer, thereby defining an enlarged viewing area. The coupling portion may have threading to engage with threading of the handle to ensure secure attachment.