EP0350675A2
Expired / Lapsed
EP
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Blood reservoir
Assignee: Terumo Corp
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Filing: 1989-06-21
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Granted: —
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Expires: 2009-06-21
Abstract
Abstract In a blood reservoir (10) comprising a container casing (11) defining a space (12) for accommodating blood, the casing (11) having a generally rectangular contour defining a pair of top and bottom sides (11f, 11d) and a pair of laterally opposed sides (11c, 11e), provided that the casing (11) assumes a vertically upright attitude, an inlet port (15) is disposed in one lateral side (11c) of the casing (11) for introducing blood into the space (12), an outlet port (17) is disposed in the bottom side (11d) of the casing (11) for discharging blood from the space (12), and a vent port (18) disposed in the top side (11f) of the casing (11) in fluid communication with the space (12). In another form, a partition (14) separates the space (12) into upper and lower compartments (13A, 13B), and apertures (195) are formed in the partition (14) for allowing partial fluid communication between the compartments (13A, 13B). The inlet port (15) and the vent port (18) are in communication with the upper compartment (13A), and the outlet port (17) is in communication with the lower compartment (13B).
Inventors
- 👤 Hiroaki Oshiyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 05:34
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3627
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
105 words
A blood reservoir comprising a container casing defining a space for accommodating blood, said casing having a generally rectangular contour in a vertical plane defining a pair of upper and lower sides and a pair of laterally opposed sides, provided that said casing assumes a vertically upright attitude, an inlet port disposed in at least one of the laterally opposed sides of said casing for introducing blood into said space, an outlet port disposed in the lower side of said casing for discharging blood from said space, and a vent port disposed in the upper side of said casing in fluid communication with said space.
Claim 2
Dependent Claim
105 words
A blood reservoir comprising a container casing defining a space for accommodating blood, said casing having a generally rectangular contour in a vertical plane defining a pair of upper and lower sides and a pair of laterally opposed sides, provided that said casing assumes a vertically upright attitude, an inlet port disposed in at least one of the laterally opposed sides of said casing for introducing blood into said space, an outlet port disposed in the lower side of said casing for discharging blood from said space, and a vent port disposed in the upper side of said casing in fluid communication with said space.
Claim 3
Dependent Claim
114 words
A blood reservoir comprising a container casing defining a space, said casing having a generally rectangular contour in a vertical plane defining a pair of upper and lower sides and a pair of laterally opposed sides, provided that said casing assumes a vertically upright attitude, partition means for separating the space into first and second compartments for accommodating blood, but allowing partial fluid communication between the first and second compartments, an inlet port in communication with said first compartment, an outlet port disposed in the lower side of said casing in communication with said second compartment, and a vent port disposed in the upper side of said casing in communication with said first compartment.
Claim 4
Dependent Claim
114 words
A blood reservoir comprising a container casing defining a space, said casing having a generally rectangular contour in a vertical plane defining a pair of upper and lower sides and a pair of laterally opposed sides, provided that said casing assumes a vertically upright attitude, partition means for separating the space into first and second compartments for accommodating blood, but allowing partial fluid communication between the first and second compartments, an inlet port in communication with said first compartment, an outlet port disposed in the lower side of said casing in communication with said second compartment, and a vent port disposed in the upper side of said casing in communication with said first compartment.
Claim 5
Dependent Claim
32 words
A blood reservoir according to claim 1 or 2 wherein said inlet port comprises a cylindrical conduit extending from the exterior into said space through the one lateral side of said casing.
Claim 6
Dependent Claim
44 words
A blood reservoir according to claim 3 wherein the portion of said conduit in the casing includes a closed distal end and a plurality of apertures formed in an adjoining cylindrical wall thereof for introducing blood into said space therethrough in a dispersed manner.
Claim 7
Dependent Claim
14 words
A blood reservoir according to any preceding claim wherein said container casing is flexible.
Claim 8
Dependent Claim
38 words
A blood reservoir according to any preceding claim wherein said inlet port is disposed in one lateral side of said casing, said outlet port is disposed in the lower side of said casing near the other lateral side.
Claim 9
Dependent Claim
25 words
A blood reservoir according to any preceding claim wherein the upper side of said container casing includes a bevel portion extending toward said vent port.
Claim 10
Dependent Claim
40 words
A blood reservoir according to any preceding claim wherein said container casing includes a pair of generally rectangular sheets which are sealed together along the four sides with said inlet port, said outlet port and said vent port interposed therebetween.
Claim 11
Dependent Claim
39 words
A blood reservoir according to claim 2 wherein said partition means includes a flexible diaphragm separating the space into the first and second compartments and means formed in said diaphragm for fluid communication between said first and second compartments.
Claim 12
Dependent Claim
33 words
A blood reservoir according to claim 9 wherein said first compartment is vertically above said second compartment and said inlet port is disposed in one of the laterally opposed sides of said casing.
Claim 13
Dependent Claim
35 words
A blood reservoir according to claim 10 wherein said communicating means in said diaphragm is near the other lateral side of said casing remote from the one lateral side where said inlet port is disposed.
Claim 14
Dependent Claim
24 words
A blood reservoir according to any of claims 9 to 10 wherein said communicating means includes a plurality of apertures formed in said diaphragm.
Claim 15
Dependent Claim
49 words
A blood reservoir according to claim 12 wherein said apertures are distributed over a region on said diaphragm near the other lateral side of said casing remote from the one lateral side where said inlet port is disposed, said region having a longer vertical distance than a lateral distance.
Claim 16
Dependent Claim
31 words
A blood reservoir according to claim 10 wherein said outlet port is disposed in the lower side of said casing near the one lateral side where said inlet port is disposed.
Claim 17
Dependent Claim
48 words
A blood reservoir according to any of claims 9 to 14 which further comprises an intermediate vent port disposed in said diaphragm or between said diaphragm and said casing near the vertically upper portion of said diaphragm for air communication from said second compartment to said vent port.
Claim 18
Dependent Claim
19 words
A blood reservoir according to claim 15 wherein said intermediate vent port is in the form of a slit.
Claim 19
Dependent Claim
63 words
A blood reservoir according to any of claims 9 to 16 wherein said partition means is a flexible diaphragm having opposed sides sealingly attached to said pair of sheets for separating the space into the first and second compartments, and one side of said diaphragm attached to one sheet is vertically above the other side of said diaphragm attached to the other sheet.
References Cited (Backward Citations)
No citation records indexed.
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