US3810460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detector for physiological quantities
Assignee: US Philips Corp
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Filing: 1972-10-13
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Granted: 1974-05-14
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Expires: 1992-10-13
Abstract
Abstract A device for detecting physiological quantities, comprising two hinged arms which are provided on their end with freely movable end members. When a part of the body, for example, an ear lobe, is clamped between the end members, the latter will be immovably retained in a mount.
Inventors
- 👤 Nie C Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B5/6815; A61B5/6816; A61B5/02; A61B5/024; A61B5/02416; A61B5/02427
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
184 words
A device for detecting physiological quantities comprising first and second arms connected to each other for pivotal movement of one with respect to the other, a hinge located at one end of said arms for pivotally connecting said arms together, an end member carried on the free end of each arm so as to locate therebetween a part of a body such as an ear lobe or fingertip, a mounting means carried at the free end of at least one of said arms comprising a recess in said arm for carrying its respective end member whereby said end member is immovably accomodated in said recess when a force is applied to said end member in the direction of said mounting means and in the vicinity of the center of said end member and at least one of said end members is displaceable with respect to its associated arm when no forces are applied thereto, flexible connecting means connecting said end member to said mounting means, and measuring means carried by at least one of said end members so as to detect said physiological quantities.
Claim 2
Independent Claim
184 words
A device for detecting physiological quantities comprising first and second arms connected to each other for pivotal movement of one with respect to the other, a hinge located at one end of said arms for pivotally connecting said arms together, an end member carried on the free end of each arm so as to locate therebetween a part of a body such as an ear lobe or fingertip, a mounting means carried at the free end of at least one of said arms comprising a recess in said arm for carrying its respective end member whereby said end member is immovably accomodated in said recess when a force is applied to said end member in the direction of said mounting means and in the vicinity of the center of said end member and at least one of said end members is displaceable with respect to its associated arm when no forces are applied thereto, flexible connecting means connecting said end member to said mounting means, and measuring means carried by at least one of said end members so as to detect said physiological quantities.
Claim 3
Dependent Claim
33 words
The device according to claim 1 wherein said recess is rotation-symmetrical and wherein the shape of the end member accomodated within said recess has a rotation-symmetry adapted to the shape of said recess.
Claim 4
Dependent Claim
49 words
The detector according to claim 2 wherein the surface of said end member facing its respective mounting means is spherical, and wherein said mounting means is annular having three bearing points for supporting said spherical surface, said bearing points being evenly distributed about the circumferance of said mounting means.
Claim 5
Dependent Claim
74 words
The device according to claim 1 further comprising a groove in the recess of at least one of said arms, and wherein said flexible connecting means comprises an e-shaped resilient wire, the straight portion of said e-shaped wire being located in said end member substantially at the center thereof near the surface facing said mounting means so as to be rotatable therewith, the bent portion of said e-shaped wire being arranged within said groove.
Claim 6
Dependent Claim
53 words
The device according to claim 1 further comprising a clamping spring and wherein the force required to move said arms with respect to each other is equal to the combination of the force produced by said clamping spring and a frictional force of said hinge, said frictional force being at least 10 grams.
Claim 7
Dependent Claim
57 words
The device according to claim 5 wherein said hinge comprises a hinge pin inserted through eyelets on both arms, at least one friction ring arranged between two eyelets of one of said arms forming a friction pack with said eyelets, and a compression spring carried by said pin for exerting a compression force on said friction pack.
Claim 8
Dependent Claim
23 words
The device according to claim 6 further comprising a means for adjusting said compression force exerted by said spring carried on said pin.
Claim 9
Dependent Claim
55 words
The device according to claim 6 further comprising a screw bolt extending axially through said pin and a nut for cooperative engagement therewith, whereby rotational movement of said nut produces compressive forces exerted in the axial direction on said friction pack, said compressive forces being substantially larger than the force exerted by said compression spring.
Claim 10
Dependent Claim
17 words
The device according to claim 1 wherein said measuring means is detachably connected to said end members.
Claim 11
Dependent Claim
30 words
The device according to claim 1 wherein said measuring means further comprises a photo emissive means and a photosensitive means arranged adjacent each other on each of said end members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |