US4038709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual hydraulic hospital bed
Assignee: KERWIT MEDICAL PRODUCTS Inc
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Filing: 1975-12-24
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Granted: 1977-08-02
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Expires: 1995-12-24
Abstract
Abstract An improved dual hydraulic hospital bed having hydraulically actuated support means for controlling the movement of the bed frame. A dual mode hydraulic pump actuates the support means and controls the movement of additional hydraulic means to control the position of the bed frame and a support frame and thus the position of the upper body and legs of a patient. The dual mode hydraulic pump is driven by a foot petal or compressed air from a compressed air source, such as the compressed air wall outlets found in most hospital rooms. Preferably, the improved dual hydraulic hospital bed includes a bidirectional spring loaded cassette holder for positioning an X-ray cassette below any of the radiolucent panels affixed to the supporting frame to facilitate the taking of X-rays.
Inventors
- 👤 Malcolm Kerwit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:37
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/05; A61G7/0507; A61G7/0508; A61G7/0509; A61G2210/00; A61G2210/50; A61G7/015; A61G7/018
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A hospital bed, comprising: a rigid rectangular bed frame; a segmented patient supporting frame coupled to said bed frame including a plurality of panels disposed transversely of said bed frame and intermediate the ends thereof, said panels being collectively proportioned so as to accommodate thereon a patient in a fully prone position when said panels are arranged in a planar relationship, at least one of said panels being movable with respect to the remainder of said panels and with respect to said bed frame about an axis extending transversely of said bed frame; support means for supporting said bed frame; hydraulic means coupled to said support means and to said patient supporting frame for raising said bed frame and at least some of said panels; and dual mode pump means coupled to said hydraulic means for actuating said hydraulic means, said pump means being operable in at least one mode by compressed air.
Claim 2
Dependent Claim
153 words
A hospital bed, comprising: a rigid rectangular bed frame; a segmented patient supporting frame coupled to said bed frame including a plurality of panels disposed transversely of said bed frame and intermediate the ends thereof, said panels being collectively proportioned so as to accommodate thereon a patient in a fully prone position when said panels are arranged in a planar relationship, at least one of said panels being movable with respect to the remainder of said panels and with respect to said bed frame about an axis extending transversely of said bed frame; support means for supporting said bed frame; hydraulic means coupled to said support means and to said patient supporting frame for raising said bed frame and at least some of said panels; and dual mode pump means coupled to said hydraulic means for actuating said hydraulic means, said pump means being operable in at least one mode by compressed air.
Claim 3
Dependent Claim
31 words
The hospital bed recited in claim 1, wherein: said pump means is arranged to be coupled to a source of compressed air found in a wall outlet of a hospital room.
Claim 4
Dependent Claim
28 words
The hospital bed recited in claim 1, wherein: said hydraulic means coupled to said patient supporting frame changes the planar position of at least one of said panels.
Claim 5
Dependent Claim
42 words
The hospital bed recited in claim 1, including: a removable bidirectional spring loaded cassette holder dimensioned to receive an X-ray cassette for mounting on said patient supporting frame below any of said panels to facilitate the taking of X-rays of a patient.
Claim 6
Dependent Claim
25 words
The hospital bed recited in claim 1, wherein: said segmented patient supporting frame when viewed in plan being fully open inwardly of its inner perimeter.
Claim 7
Dependent Claim
45 words
The hospital bed recited in claim 1, including: siderails and intravenous extension rods coupled to the hospital bed and means positioning said siderails and intravenous extension rods between the outer perimeter of said segmented patient supporting frame and the outer perimeter of said bed frame.
Claim 8
Dependent Claim
12 words
The hospital bed recited in claim 1, wherein said panels are radiolucent.
Claim 9
Dependent Claim
54 words
A hospital bed as claimed in claim 7, wherein: said bed frame when viewed in plan is fully open inwardly of its inner perimeter, and said hydraulic means and said dual mode pump means are arranged on said bed so that they do not substantially obstruct radiographic view through said segmented patient supporting frame.
Claim 10
Dependent Claim
15 words
The hospital bed recited in claim 1 wherein said pump means includes a foot pedal.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |