초록 ▼

A pressure sensitive device includes a housing having an interior cavity and a narrow downwardly extending portion. A support plate is disposed within the housing cavity along with a flexible diaphragm which is sealingly mounted to a bottom facing side of the support plate. A movement mechanism inte

A pressure sensitive device includes a housing having an interior cavity and a narrow downwardly extending portion. A support plate is disposed within the housing cavity along with a flexible diaphragm which is sealingly mounted to a bottom facing side of the support plate. A movement mechanism interconnected to the diaphragm includes a pressure sensitive element which is responsive to the impingement of incoming fluid on the sealed diaphragm. The movement mechanism is disposed within a narrow extending portion of the housing to assume a compact and shallow profile which facilitates direct attachment to existing devices, such as blood pressure sleeves. In a preferred version, the movement mechanism is disposed within a cavity defined by the diaphragm.

대표청구항 ▼

[ We claim:] [1.] A pressure sensitive device comprising:a housing having an interior cavity;a support plate disposed in said interior cavity, said support plate having a center opening;a diaphragm mounted to a bottom facing side of said support plate, said diaphragm having at least one movable surf

[ We claim:] [1.] A pressure sensitive device comprising:a housing having an interior cavity;a support plate disposed in said interior cavity, said support plate having a center opening;a diaphragm mounted to a bottom facing side of said support plate, said diaphragm having at least one movable surface responsive to changes in pressure of a fluid entering the interior cavity of said housing and an elongate center portion extending downwardly with respect to said support plate, said elongate center portion of said diaphragm having an inner cavity;a dial face mounted to a top facing side of said support plate; anda movement mechanism interconnected with said at least one movable surface of said diaphragm, said movement mechanism including an axially displaceable shaft member and a thin ribbon spring member helically wound around said shaft member, said ribbon spring member having one end attached to one end of said axially displaceable shaft member and an opposing end attached to a stationary elongated hollow tubular member having at least a substantial axial portion of said axially displaceable shaft member and said helically wound ribbon spring member disposed within said hollow tubular member, said movement mechanism being disposed through said center opening of said support plate,wherein said housing includes a narrow downwardly extending section sized for retaining the elongate center portion of said diaphragm having at least a portion of said movement mechanism situated within said inner cavity of said elongate center portion.