Abstract: Disclosed is a bath scale for measuring a user's weight having a weight display and a message display driven by a detection-and-display system adapted to provide through the message display one or more substantially non-deductive messages to the user of the bath scale that instruct the user in plain language how to use the scale.

Abstract: A growth factor delivery system for use in connection with microdermabrasion includes a source of growth factors. The growth material may be dry and thus mixed in with the abrasion media. The dry growth material would therefore be applied to the target skin area simultaneously with the abrasion media by a single handpiece. The growth material may comprise a fluid to be delivered by a separate handpiece. The fluid source may be within the handpiece or external thereto. The fluid source may be contained in a removable cartridge adapted to fit within the handpiece. Thus, a method and system is provided for using disposable cartridges of growth fluids.

Abstract: Disclosed is a bath scale for measuring a user's weight having a weight display and a message display driven by a detection-and-display system adapted to provide through the message display one or more substantially non-deductive messages to the user of the bath scale that instruct the user in plain language how to use the scale.

Abstract: Disclosed is a mat for a bath scale, the mat having a flexible magnetic substrate adapted to magnetically attach to the standing surface of a bath scale and defining a meter opening for a meter window thereof. The mat may further comprise laminate polymer or textile layers bonded thereon, which may be colored or have graphics imprinted thereon.

Abstract: A human growth factor delivery system for use in connection with dermabrasion includes a source of human growth factors in fluid. The growth factor fluid may be applied to the target skin area simultaneously with the step of abrading the skin by a single handpiece. Furthermore, the fluid is caused to penetrate by a combination of the abrasive elements, a vacuum, and a positive pressure applied in bursts, which produces a massaging effect. The fluid source may be contained in a removable cartridge adapted to fit within the handpiece. The fluid is drawn from the cartridge by the vacuum. The vacuum also draws a portion of target skin into a space of the handpiece for contact with an abrasion element. The vacuum furthermore draws excess fluid and removed skin cells into a disposable or reusable canister.

Abstract: An evacuation system is provided for removing smoke generated during a surgical procedure performed in a surgical room. The evacuation system includes a pre-filter assembly and a replaceable filter cartridge module disposed in the surgical room to permit replacement of used filter cartridge modules with new filter cartridge modules by personnel within the surgical room. A vacuum generator is disposed outside of the surgical room and includes a vacuum pump for establishing an air flow through the replaceable filter cartridge module. The pre-filter assembly includes an elongate flexible suction hose that is adapted for manipulation into position adjacent the medical procedure. A mechanical connection mechanism enables pre-filter assemblies to be easily replaced between each surgical procedure. An accumulated filter usage circuit calculates a quantity of filter capacity available and generates a filter loading signal based on the available capacity.