Patent US3731731A successfully refreshed from Google Patents.
US3731731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control means for blood and the like fluids
Assignee: POLYSTAN VED F KYUSGAARD
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Filing: 1971-05-04
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Granted: 1973-05-08
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Expires: 1991-05-04
Abstract
Abstract The invention relates to a device for adjusting the temperature of blood and the like fluids under sterile conditions, comprising a reservoir in the shape of a collapsible bag, in which the fluid is contacted with the outer surface of a temperature adjusting body through which a temperature adjusting medium flows, said temperature adjusting body comprising a substantially tubular rigid body passing through the collapsible bag in the assembly plane of the latter below the fluid inlet, a tight joint being provided between the bag and the tubular body at the ends of the latter.
Inventors
- 👤 E Kyvsgaard
- 👤 C Simonsgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
F; F28; F28F; F28F27/00; A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3623; A61M1/369; A61M5/00; A61M5/44; A61M2205/00; A61M2205/36; A61M2205/366
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
Temperature control means for adjusting the temperature of blood and the like fluids under sterile conditions, comprising a reservoir consisting of a collapsible bag made from two sheets of flexible plastic welded together at the edges, and being suspended from a support at the top, and a temperature adjusting means in the shape of a substantially tubular rigid body extending through the collapsible bag in the plane of assembly of the latter below an inlet for the fluid, and being provided with an inlet and an outlet for a temperature adjusting medium, a tight seal being provided between the collapsible bag and the tubular body at the ends of the latter.
Claim 2
Dependent Claim
111 words
Temperature control means for adjusting the temperature of blood and the like fluids under sterile conditions, comprising a reservoir consisting of a collapsible bag made from two sheets of flexible plastic welded together at the edges, and being suspended from a support at the top, and a temperature adjusting means in the shape of a substantially tubular rigid body extending through the collapsible bag in the plane of assembly of the latter below an inlet for the fluid, and being provided with an inlet and an outlet for a temperature adjusting medium, a tight seal being provided between the collapsible bag and the tubular body at the ends of the latter.
Claim 3
Dependent Claim
24 words
Temperature control means as set forth in claim 1, in which the tubular body has ribs or corrugations extending substantially perpendicular to its axis.
Claim 4
Dependent Claim
34 words
Temperature control means as set forth in claim 2, in which the tubular body has helical corrugations, and moulded end closures, the outside corrugations being filled up at the endS of the tubular body.
Claim 5
Dependent Claim
21 words
Temperature control means as set forth in claim 1, in which the tubular body extends outside the reservoir at both ends.
Claim 6
Dependent Claim
21 words
Temperature control means as set forth in claim 1, in which two half-shells enclose the collapsible bag adjacent the tubular body.
Claim 7
Dependent Claim
29 words
Temperature control means as set forth in claim 5, in which the half-shells have end walls enclosing at least the border of the end closures of the tubular body.
Claim 8
Dependent Claim
25 words
Temperature control means as set forth in claim 5, in which the opening between the half-shells increases in width towards the ends of the half-shells.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |