Blood pressure cuffs
First Claim
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1. Blood pressure cuff apparatus for constricting an artery in a peripheral limb of a mammal and sensing cardiovascular performance of the mammal, said blood pressure cuff comprising, in combination:
- (a) a flexible, hollow bladder adapted to surround the limb with the artery, said bladder having an inside external surface adapted to apply pressure to a surface of the limb, an outside external surface on the side opposite said inside surface, and an inlet for receiving a fluid to cause the bladder to expand;
(b) at least one first sensor element disposed on at least one of said inside surface and outside surface of the bladder in a location adjacent said artery when said bladder is in an operative position surrounding said limb, said first sensor element including an elongate thin-film strip for transducing mechanical vibrations and producing electrical signals representing said vibrations.
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Abstract
A blood pressure cuff includes:
- (a) a flexible, hollow bladder adapted to surround the arm of the patient, which has an inside surface adapted to apply pressure to a surface of the arm above an artery, an outside surface opposite this inside surface, and an inlet line for receiving a fluid to cause the bladder to expand;
- (b) at least one first sensor element arranged on a inside and/or outside surface of the bladder in a location adjacent the artery when the bladder is in its operative position surrounding the patient'"'"'s arm; and possibly also
- (c) at least one second sensor element arranged on a surface of the bladder that is opposite to the surface on which the first sensor element is disposed, and in a location adjacent the artery when the bladder is in its operative position surrounding the patient'"'"'s arm. The sensor elements each comprise an elongate thin-film strip which transduces mechanical vibrations and produces an electrical signal representing these vibrations, normally in the range of 0 to 100 Hz.
40 Citations
26 Claims
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1. Blood pressure cuff apparatus for constricting an artery in a peripheral limb of a mammal and sensing cardiovascular performance of the mammal, said blood pressure cuff comprising, in combination:
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(a) a flexible, hollow bladder adapted to surround the limb with the artery, said bladder having an inside external surface adapted to apply pressure to a surface of the limb, an outside external surface on the side opposite said inside surface, and an inlet for receiving a fluid to cause the bladder to expand; (b) at least one first sensor element disposed on at least one of said inside surface and outside surface of the bladder in a location adjacent said artery when said bladder is in an operative position surrounding said limb, said first sensor element including an elongate thin-film strip for transducing mechanical vibrations and producing electrical signals representing said vibrations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification