Back to results
US 7,509,867 B2Granted
Bioinformation detection device utilizing air pressure variation
AssigneeM. I. Laboratories Corporation
InventorMitsuru Takashima
Life of this patent
Estimating the term…
Abstract
A bioinformation detection device, comprising a three-layer structure having a base, an elastic body, and a cover body, wherein a closed space is formed by a load applied to the structure, a strain detection element is sealed in the closed space, and an air pressure variation caused by bioinformation is converted into an electric signal and taken out, whereby the detail bioinformation can be accurately provided for a long time.
Claims12
A bioinformation detector comprising:
- (a) a pedestal including an open-top pedestal cavity;
- (b) a diaphragm closing the open top of the pedestal cavity;
- (c) a cap mounted on the pedestal, the cap defining a cap cavity open to the diaphragm;
- (d) a resilient member installed between the pedestal and the cap for hermetically sealing a joint therebetween when the cap is loaded with an object for bioinformation detection;
- and
- (e) a strain sensor attached to the diaphragm for sensing changes in air pressure in the hermetically sealed space.
3 more elements
A bioinformation detector comprising:
- (a) a pedestal including a pedestal cavity having a constriction;
- (b) a cap mounted on the pedestal, the cap defining a cap cavity open to the constriction of the pedestal cavity;
- (c) a resilient member installed between the pedestal and the cap for hermetically sealing a joint therebetween when the cap is loaded with an object of bioinformation detection;
- and
- (d) a strain sensor mounted to the pedestal so as to close the constriction of the pedestal cavity for sensing changes in air pressure in the hermetically sealed space.
2 more elements
Dependencies are inferred from the claim text.