Sphygmomanometer

A rigidly structured, functionally stable, manually hand held measuring instrument comprising a manifold, a gauge directly and rigidly mounted on and functionally connected to said manifold, a squeeze bulb also directly and rigidly mounted on and functionally connected to said manifold, and a short stroke, quick action press type air escape valve also directly and rigidly mounted on and functionally connected to said manifold at a position where it can be freely operated to permit air escape or stop air escape instantly at the will of the operator by a very slight up or down but no extending, contracting nor sidewise movement of the operator's thumb on one hand(either right or left) alone so as to leave the other four fingers of the same hand free to securly and motionlessly support the instrument by said bulb and at the same time also squeeze or release the bulb while the operating hand and the thumb and all four fingers thereon are in a completely natural position so that no movement of the instrument in any direction is caused thereby, and also the said gauge is in a perfect and natural, unobstructed viewing position by said operator whose other hand is left entirely free constantly throughout a measuring operation.