Patent ID: 6783500
Filing Date: 2004-08-31
Classification: A61B

Abstract:
A blood pressure measuring apparatus comprising:an inflatable cuff which can be wrapped about the limb of a patient, said cuff including a sealed interior capable of inflation; and an integrated inflation/pressure measuring device, said inflation/pressure measuring device including an elastomeric enclosure which retains a gage and a pneumatic bulb therein and means for fluidly interconnecting said pneumatic bulb, said inflatable cuff, and said gage wherein said gage comprises at least one pressure responsive member, a shaft member supported for axial movement having one end in substantial proximity to said at least one pressure responsive member and a helical ribbon spring wrapped about said shaft member, said one end of said helical ribbon spring attached to a fixed portion of said gage wherein changes in the inflated pressure of said cuff during blood pressure measurement cause deflection of said at least one pressure responsive member, causing shaft member to move axially, said ribbon spring to flex, and said shaft member to rotate to indicate the resulting change in pressure.