← Back to Patent Explorer
US4476685A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for heating or cooling fluids

Assignee: Janssen Pharmaceuticals Inc
•
Filing: 1982-07-12
•
Granted: 1984-10-16
•
Expires: 2002-07-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An apparatus for heating or cooling physiological fluids, such as whole blood and blood plasma, or liquids which are used in the treatment of such physiological fluids, wherein at least one thermoelectric device is used for the heating or cooling.

Inventors

  • 👤 James D. Aid

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:20
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/44; A61M1/00; A61M1/14; A61M1/16; A61M1/1654; A61M1/1656; A61M1/166; A61M1/36; A61M1/3621; A61M1/3623; F; F28; F28F; F28F3/00; F28F3/12; A61M2205/00; A61M2205/36; A61M2205/3673

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 118 words
Apparatus for heating or cooling a liquid, said apparatus comprising a pair of thermally conductive elements, each of said elements having first and second thermally conductive major surfaces, said elements being arranged in spaced apart relationship with their respective first major surfaces facing each other so as to define a space therebetween, the second thermally conductive major surfaces of each of said elements having in heat conductive contact therewith at least one thermoelectric device for heating or cooling, each of said thermoelectric devices being in contact with a heat sink means, and, removably disposed in said space, a flexible container means in which or through which a liquid to be heated or cooled may be contained or circulated.
Claim 2
Dependent Claim 118 words
Apparatus for heating or cooling a liquid, said apparatus comprising a pair of thermally conductive elements, each of said elements having first and second thermally conductive major surfaces, said elements being arranged in spaced apart relationship with their respective first major surfaces facing each other so as to define a space therebetween, the second thermally conductive major surfaces of each of said elements having in heat conductive contact therewith at least one thermoelectric device for heating or cooling, each of said thermoelectric devices being in contact with a heat sink means, and, removably disposed in said space, a flexible container means in which or through which a liquid to be heated or cooled may be contained or circulated.
Claim 3
Dependent Claim 49 words
Apparatus according to claim 1 wherein said container means comprises two relatively thin, generally flexible sheets of polymeric material joined together at their peripheries to define a compartment for containing a liquid, an inlet for introducing liquid into said compartment, and an outlet for withdrawing liquid from said compartment.
Claim 4
Dependent Claim 28 words
Apparatus according to claim 2 wherein the width of said space is about 60 mils and each sheet of polymeric material has a thickness of about 5 mils.
Claim 5
Dependent Claim 139 words
Apparatus for heating or cooling a liquid including a pair of thermally conductive elements, each of said elements having first and second thermally conductive major surfaces, said elements being arranged in spaced apart relationship with their respective first major surfaces facing each other so as to define a space therebetween, the second thermally conductive major surface of each of said elements having in heat conductive contact therewith at least one thermoelectric device for heating or cooling, each of said thermoelectric devices being in contact with a heat sink means, and, disposed in said space, a container means which comprises two relatively thin, generally flexible sheets of polymeric material joined together at their peripheries to define a compartment for containing said liquid, an inlet for introducing liquid into said compartment, and an outlet for withdrawing said liquid from said compartment.
Claim 6
Dependent Claim 139 words
Apparatus for heating or cooling a liquid including a pair of thermally conductive elements, each of said elements having first and second thermally conductive major surfaces, said elements being arranged in spaced apart relationship with their respective first major surfaces facing each other so as to define a space therebetween, the second thermally conductive major surface of each of said elements having in heat conductive contact therewith at least one thermoelectric device for heating or cooling, each of said thermoelectric devices being in contact with a heat sink means, and, disposed in said space, a container means which comprises two relatively thin, generally flexible sheets of polymeric material joined together at their peripheries to define a compartment for containing said liquid, an inlet for introducing liquid into said compartment, and an outlet for withdrawing said liquid from said compartment.
Claim 7
Dependent Claim 47 words
Apparatus according to claim 4 wherein said sheets of polymeric material are additionally joined together along a plurality of narrow, substantially equally spaced, parallel lines of attachment located interiorly of said compartment whereby a plurality of channels for the flow of liquid is provided in said compartment.
Claim 8
Dependent Claim 41 words
Apparatus according to claim 5 where said sheets of polymeric material are joined together along at least one additional line of attachment so as to divide at least one of said flow channels into two narrower channels of substantially identical width.
Claim 9
Dependent Claim 78 words
Apparatus according to any one of claims 5 and 6 wherein said container means has a top edge, a bottom edge, and a pair of opposed side edges, all of said interiorly located lines of attachment are parallel to said side edges, said inlet is located along the top edge of said container near one of said side edges, and said outlet is located along the top edge of said container near the other of said side edges.
Claim 10
Dependent Claim 32 words
Apparatus according to claim 4 wherein said container means has a top edge, a bottom edge, a pair of opposed side edges, and an elongated sleeve adjoining each of said side edges.
Claim 11
Dependent Claim 29 words
Apparatus according to claim 8 wherein said flexible container means is supported by a U-shaped frame member comprising a pair of arms which are inserted into said elongated sleeves.
Claim 12
Dependent Claim 47 words
Apparatus according to claim 8 wherein said sheets of polymeric material are additionally joined together along a plurality of narrow, substantially equally spaced, parallel lines of attachment located interiorly of said compartment whereby a plurality of channels for the flow of liquid is provided in said compartment.
Claim 13
Dependent Claim 41 words
Apparatus according to claim 10 wherein said sheets of polymeric material are joined together along at least one additional line of attachment so as to divide at least one of said flow channels into two narrower channels of substantially identical width.
Claim 14
Dependent Claim 61 words
Apparatus according to any one of claims 10 and 11 wherein all of the interiorly located lines of attachment are parallel to said side edges, said inlet is located along the top edge of said container near one of said side edges and said outlet is located along the top edge of said container near the other of said side edges.
Claim 15
Dependent Claim 15 words
Apparatus according to claim 4 further including means for blowing air across said heat sinks.
Claim 16
Dependent Claim 34 words
Apparatus according to claim 4 wherein a rabbet molding surrounds the periphery of each of said thermally conductive elements so as to leave their respective first thermally conductive major surfaces free of any molding.
Claim 17
Dependent Claim 46 words
Apparatus according to claim 14 wherein the second major surface of each thermally conductive element includes an elevated portion on which said thermoelectric devices are mounted and wherein the regions of said second major surfaces between said molding and said elevated portions carry an insulating material.
Claim 18
Dependent Claim 54 words
Apparatus according to claim 14 wherein nearly the entire length of the side portions of the molding around each of said thermally conductive elements have arcuate cutout portions which cooperate with said space to define a first pair of circular openings adapted to receive the opposed parallel arms of a generally U-shaped frame member.
Claim 19
Dependent Claim 40 words
Apparatus according to claim 16 wherein each of said thermally conductive elements has arcuate cutout portions which cooperate with said space to define a second pair of circular openings adapted to receive the inlet and outlet of said container means.
Claim 20
Dependent Claim 38 words
Apparatus according to claim 4 wherein the compartment of said container means expands when filled with liquid so that the sides of said container means come into contact with the first major surfaces of said thermally conductive elements.
Claim 21
Dependent Claim 36 words
Apparatus according to any one of claims 4 and 13 through 18 inclusive wherein the width of said space is about 60 mils and each sheet of polymeric material has a thickness of about 5 mils.

References Cited (Backward Citations)

US2910836A Cited
US2928253A Cited
US3111813A Cited
US3008299A Cited
US3197342A Cited
US3255593A Cited
US3290889A Cited
US3273347A Cited
US3874183A Cited
US4065936A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-10-16 1988-04-16 1988-10-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-10-16 1992-04-16 1992-10-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-10-16 1996-04-16 1996-10-16 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag