Patent US3810461A successfully refreshed from Google Patents.
US3810461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable pulmonary function kit
Assignee: American Health Inc
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Filing: 1972-09-11
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Granted: 1974-05-14
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Expires: 1992-09-11
Abstract
Abstract A disposable pulmonary function kit for use in post-surgical lung exercise and in testing lung capacity by exhaling into an inflatable bag having an input tube with valve means which, in one embodiment, is manually operable to close off the bag. The bag may then be rolled from one end, or separate means moved along the length of the bag, until the portion of the bag retaining the gas therein is taut whereupon the volumn of gas within the bag may be read from calibrations on the bag.
Inventors
- 👤 Cormick J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:31
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/08; A61B5/091; A61B5/093
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
A disposable pulmonary function kit for use in testing lung capacity, comprising, in combination, inflatable bag means, input means connected to the interior of said bag means and providing means for exhaling gas from one''s lungs into said bag means, said input means comprising an elongated tubular member secured to said bag means generally adjacent one end thereof, said elongated member having a mouth actuated slidable and closable valve means supported thereon and adapted for selectively closing said bag means after at least partially inflating said bag means, said bag means having calibration gradations thereon beginning with zero at the end of said bag means opposite said elongated member, said elongated member being rotatable about its longitudinal axis to roll said bag means thereon until the portion of said bag means having gas entrapped therein is taut such that the volume of gas within said bag means may be determined by observing the calibration gradation adjacent the rolled elongated member.
Claim 2
Dependent Claim
160 words
A disposable pulmonary function kit for use in testing lung capacity, comprising, in combination, inflatable bag means, input means connected to the interior of said bag means and providing means for exhaling gas from one''s lungs into said bag means, said input means comprising an elongated tubular member secured to said bag means generally adjacent one end thereof, said elongated member having a mouth actuated slidable and closable valve means supported thereon and adapted for selectively closing said bag means after at least partially inflating said bag means, said bag means having calibration gradations thereon beginning with zero at the end of said bag means opposite said elongated member, said elongated member being rotatable about its longitudinal axis to roll said bag means thereon until the portion of said bag means having gas entrapped therein is taut such that the volume of gas within said bag means may be determined by observing the calibration gradation adjacent the rolled elongated member.
Claim 3
Dependent Claim
139 words
A pulmonary function kit as defined in claim 1, wherein said elongated tubular member comprises a roller member secured to said bag means at said one end thereof, said tubular roller member having at least one opening in the annular wall thereof communicating with the intErior of said bag means, and wherein said valve means comprises an input tube member coaxially supported within said tubular roller member and rotatable relative thereto, said input tube member having an open end providing a mouthpiece fitment and having an opening in the annular wall thereof adapted for registry with said opening in said roller member, said input tube being rotatable about its longitudinal axis between a first position establishing registry of said openings for introducing a gas into said bag means and a second position sealing the gas within said bag means.
Claim 4
Dependent Claim
23 words
A pulmonary function kit as defined in claim 2 wherein said tubular roller member extends across the full width of said bag means.
Claim 5
Dependent Claim
157 words
A disposable pulmonary function kit for use in testing lung capacity, comprising, in combination, inflatable bag means, calibration gradations on said bag means positioned to indicate the volume of gas entrapped in said bag means when selectively disposed in a taut condition, input means secured to said bag means and comprising a mouth actuated slidable and closable valve means including a tubular mouthpiece fitment movable between a first position wherein one may exhale therethrough into said bag means and a second position while in the person''s mouth to close off said bag means and entrap the exhaled gas therein, and air gathering means mounted on said bag means and movable along the length of said bag means to force the entrapped gas therein toward one end of said bag means until said bag means is taut whereupon the volume of gas within said bag means may be determined by observing the calibration gradation adjacent said gathering means.
Claim 6
Dependent Claim
157 words
A disposable pulmonary function kit for use in testing lung capacity, comprising, in combination, inflatable bag means, calibration gradations on said bag means positioned to indicate the volume of gas entrapped in said bag means when selectively disposed in a taut condition, input means secured to said bag means and comprising a mouth actuated slidable and closable valve means including a tubular mouthpiece fitment movable between a first position wherein one may exhale therethrough into said bag means and a second position while in the person''s mouth to close off said bag means and entrap the exhaled gas therein, and air gathering means mounted on said bag means and movable along the length of said bag means to force the entrapped gas therein toward one end of said bag means until said bag means is taut whereupon the volume of gas within said bag means may be determined by observing the calibration gradation adjacent said gathering means.
Claim 7
Dependent Claim
89 words
A pulmonary function kit as defined in claim 4 wherein said calibration gradations begin with zero at one end of said bag means, and wherein said air gathering means includes a sweeper member supported on said bag means normally adjacent the end thereof opposite the zero calibration gradation, said sweeper member being slidable along the length of said bag means until any gas entrapped therein causes said bag means to become taut whereupon the calibration gradation adjacent said sweeper member indicates the volume of gas within said bag means.
Claim 8
Dependent Claim
90 words
A disposable pulmonary function kit as defined in claim 5 wherein said sweeper member comprises a generally flat sweeper element having three leg portions defining a pair of spaced slots therebetween of sufficient length to receive said bag means therethrough such that said sweeper element may be slid along the length of said bag means with the intermediate leg portion cooperating with the remaining leg portions to prevent the passage of gas entrapped within said bag means past said sweeper element as it is moved longitudinally along said bag means.
References Cited (Backward Citations)
US392711A
Cited
US1433679A
Cited
US1857732A
Cited
US1773104A
Cited
FR783105A
Cited
US2129627A
Cited
US2083603A
Cited
US2228983A
Cited
US2427145A
Cited
US2790579A
Cited
FR1234686A
Cited
SU137237A1
Cited
US3194452A
Cited
US3507271A
Cited
US3635214A
Cited
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 |