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Patent US3800963A successfully refreshed from Google Patents.
US3812844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring blood pressure with corresponding cuff sections and indication ranges
Assignee: Individual
•
Filing: 1971-05-26
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Granted: 1974-05-28
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Expires: 1991-05-26
Abstract
Abstract Apparatus for measuring blood pressure, with automatic compensation for variation in limb diameter, includes a bandage and a measuring apparatus indicating unit connected thereto. The bandage is subdivided along its length into a plurality of sections, each of which is associated with its own indicating zone in the measuring apparatus. The subdivisions can be visual. Alternatively, they can be by means of electrical contacts or a resistor extending longitudinally of the bandage; in which case the use of the apparatus can be simplified by the incorporation of rotating sealers or pointers actuated by circuitry responsive to the effective length of bandage in use.
Inventors
- 👤 K Sokol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
Apparatus for measuring blood pressure comprising an inflatable bandage and a pressure measuring indicating means connected thereto, said indicating means having separate indicating ranges and said bandage being sub-divided into a plurality of sections along its longitudinal dimension, each of the said sections being associated with its own indicating range in the indicating means in accordance with the effective length of the bandage in operative position.
Claim 2
Dependent Claim
66 words
Apparatus for measuring blood pressure comprising an inflatable bandage and a pressure measuring indicating means connected thereto, said indicating means having separate indicating ranges and said bandage being sub-divided into a plurality of sections along its longitudinal dimension, each of the said sections being associated with its own indicating range in the indicating means in accordance with the effective length of the bandage in operative position.
Claim 3
Dependent Claim
33 words
Apparatus according to claim 1, characterised in that the sections of the bandage comprise zones of different colouring and the indicating ranges are correspondingly coloured for association with a similarly coloured bandage section.
Claim 4
Dependent Claim
77 words
Apparatus according to claim 1, characterised in that the bandage is provided with a common contact in the zone of one of its ends and a number of individual contacts along the length thereof selectively engageable with said common contact providing a circuit corresponding to the appropriate individual contact and therefore corresponding to the effective length of the bandage, the said circuit including switch means to activate the associated indicating range in the measuring and indicating means.
Claim 5
Dependent Claim
32 words
Apparatus according to claim 3, characterised in that the common contact consists of a hook and the individual contacts of separate metal rods extending transversely to the longitudinal orientation of the bandage.
Claim 6
Dependent Claim
109 words
Apparatus according to claim 3, characterised in that there are provided separate indicating means, first and second busbars and a separate relay for each bandage section, with each relay having two normally open contacts of which the first normally open contact is connected on the one hand to a first busbar, connected in the circuit of a first indicating means and of which the second normally open contact is connected on the one hand to a second busbar which is connected in the circuit of a second indicating means; and separate trimmer resistors connected to the other normally open contacts which complete the circuits of the two indicating means.
Claim 7
Dependent Claim
46 words
Apparatus according to claim 1, characterised in that tee measuring and indicating means comprises a pointer and at least one scale and in that there are provided means mounting the same for rotation relative to each other in accordance with the effective length of the bandage.
Claim 8
Dependent Claim
57 words
Apparatus according to claim 6, characterised in that there are plural gear wheels and plural scales formed by rings mounted coaxially relative to as well as on separate gear wheels with one gear wheel rotatable in accordance with the effective length of the bandage and coupled to the other gear wheel through a predetermined fixed step-down ratio.
Claim 9
Dependent Claim
15 words
Apparatus according to claim 7, characterised in that the step-down ratio is 1 : 2.
Claim 10
Dependent Claim
61 words
Apparatus according to claim 7, characterised in that there is provided at least one further gear wheel pair coupling the two gear wheels which are disposed coaxially one below the other and below the scales and wherein the further gear wheel pair comprises two gear wheels which are disposed coaxially relative to each other and are mounted on a common shaft.
Claim 11
Dependent Claim
37 words
Apparatus according to claim 9, characterised in that there is a common hollow shaft for the first two gear wheels to run independently of each other and through which hollow shaft a spindle for the pointer traverses.
Claim 12
Dependent Claim
35 words
Apparatus according to claim 7, characterised in that there is a manual drive for the one gear wheel whereby it can be manually rotatable to a position corresponding to the effective length of the bandage.
Claim 13
Dependent Claim
89 words
Apparatus according to claim 11, characterised in the provision of a housing with a circumferential slit therethrough and an associated scale and with the manual drive of the one gear wheel comprising an outwardly extending rod the free end of which has a handle upon it, said rod being fixedly connected to the said one gear wheel and extending radially therefrom through the slit of the housing, the handle having a pointer for sliding over the scale on the housing circumference by rotation of one of the gear wheels.
Claim 14
Dependent Claim
33 words
Apparatus according to claim 7, characterised in that there is provided means for electrically and automatically rotating the one gear wheel in relation to the effective length of the bandage through the contacts.
Claim 15
Dependent Claim
49 words
Apparatus according to claim 7, characterised in that there are provided spaced supports for mounting the rings forming the scales on their respective gear wheel and that the supports, extending approximately axially from the gear wheel side surfaces, are disposed at distances of approximately 120* relative to each other.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |