Abstract: A sphygmomanometer gauge included a stationary dial having graduations indicative of different blood pressure values. A needle is turnable about an axis over the dial in response to changes in air pressure generated in the sphygmomanometer. A pair of adjustable members are mounted on the gauge for turning movement in either circumferential direction about the axis. Each adjustable member has an access portion which extends through the gauge housing to thereby permit independent and manual turning. A systolic indicator and a diastolic indicator are respectively mounted on the adjustable members for turning movement with the latter. Each indicator is operative to simultaneously indicate both a single value and a range of values of blood pressure.

Abstract: A fine-adjusting arrangement for a pressure-indicating device of a sphygmomanometer. The sphygmomanometer includes a movable indicator needle, an actuating rod movable in response to changes in the air pressure generated in the sphygmomanometer, and a pair of coupling members intermediate the actuating rod and the indicator for moving the latter along a path between a starting position and an end measuring position. One coupling member is an adjustment plate having a pivot pin for pivotally connecting the rod to the adjustment plate; and the other coupling member is a sector gear operatively connected to the indicator and having an abutment pin spaced from the pivot pin at a spacing which determines the position of the indicator along the path. The fine-adjusting arrangement shifts the adjustment plate relative to the sector gear to thereby vary the spacing, and also sets the indicator with fine minute continuous adjustment to its starting position.

Abstract: An improved air bleed or full air discharge control valve assembly for a sphygmomanometer cuff in which a stem of the valve extends through and, in idle condition of the valve, sealingly engages the central opening of a resilient O-ring and is manipulated to release air either by being manually tilted about its inner end against a restoring force to temporarily enlarge the opening and thus provide a transient gap between the opening and the valve stem for accurately controlled bleed of air from the cuff during blood pressure measurements as long as the stem is tilted, or by being shifted axially to assume and maintain a position in which it permits rapid total air egress from the cuff through a central axial bore in the stem and at least one transverse opening from the bore to the outer surface of the stem.