Patent US3654924A successfully refreshed from Google Patents.
US3654924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood collection assembly
Assignee: Abbott Laboratories
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Filing: 1970-05-14
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Granted: 1972-04-11
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Expires: 1990-05-14
Abstract
Abstract Disclosed herein is a blood collection assembly including an auxiliary sample pouch with a pass-through tube for filling the blood bag. The pass-through tube is the same diameter as the remaining tubing of the assembly and is frangible within the pouch so that the tubing can be placed in communication with the pouch.
Inventors
- 👤 Earl D Wilson
- 👤 Norbert W Ellmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02; A61J; A61J1/00; A61J1/05; A61J1/10; A61J1/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
156 words
In a blood collection assembly including a needle for inserting in a donor''s vein, a bag for collection of the donation, and tubing having an initial end and a terminal end, said tubing connected to said needle at said initial end and to said bag at said terminal end, the improvement comprising: said tubing having a passageway therethrough of substantially constant inside diameter from said initial end to said terminal end to insure laminar flow of blood through said tubing and avoid turbulent flow at any point along said passageway, said tubing having a frangible portion intermediate said initial and terminal ends, and a closed sample pouch encapsulating said frangible portion and having end walls sealed to said tubing on either side of said frangible portion, said pouch including an empty chamber formed about the continuous length of said tubing including said frangible portion, said frangible portion being disposed intermediate, but spaced from, said end walls.
Claim 2
Dependent Claim
156 words
In a blood collection assembly including a needle for inserting in a donor''s vein, a bag for collection of the donation, and tubing having an initial end and a terminal end, said tubing connected to said needle at said initial end and to said bag at said terminal end, the improvement comprising: said tubing having a passageway therethrough of substantially constant inside diameter from said initial end to said terminal end to insure laminar flow of blood through said tubing and avoid turbulent flow at any point along said passageway, said tubing having a frangible portion intermediate said initial and terminal ends, and a closed sample pouch encapsulating said frangible portion and having end walls sealed to said tubing on either side of said frangible portion, said pouch including an empty chamber formed about the continuous length of said tubing including said frangible portion, said frangible portion being disposed intermediate, but spaced from, said end walls.
Claim 3
Dependent Claim
18 words
The assembly as defined in claim 1 wherein said frangible portion is a hardened segment of said tubing.
Claim 4
Dependent Claim
18 words
The assembly as defined in claim 1 wherein said frangible portion is a weakened section of said tubing.
Claim 5
Dependent Claim
47 words
The assembly as defined in claim 1 wherein said tubing includes a first section communicating with said initial end and a second section communicating with said terminal end, and said frangible portion includes a sleeve holding said first and second sections of said tubing in abutting engagement.
Claim 6
Dependent Claim
12 words
The assembly as defined in claim 4 wherein said sleeve is flexible.
Claim 7
Dependent Claim
12 words
The assembly as defined in claim 4 wherein said sleeve is rigid.
Claim 8
Dependent Claim
107 words
The assembly as defined in claim 1 wherein said tubing includes a first section communicating with said initial end and a second section communication with said terminal end, said frangible portion includes a hardened sleeve having a weakened central section, counterbored end sections and shoulders interconnecting said central sections and said end sections, the inside diameter of the central section being substantially constant and equal to the inside diameter of said tubing, the inside diameter of said end sections being substantially equal tO the outside diameter of said tubing and said first and second sections of said tubing fitted within said end sections and abutting said shoulders.
Claim 9
Dependent Claim
21 words
The assembly as defined in claim 1 wherein said bag contains an amount of anti-coagulant and said frangible portion is unbroken.
Claim 10
Independent Claim
121 words
A method of collecting blood from a donor which includes placing tubing in communication with a donor source, passing blood through said tubing in a laminar flow pattern from said cource to a collection point, collecting a donation of blood at said collection point, interrupting said laminar flow pattern intermediate said source and said collection point, and collecting a sample of blood in a pouch having a first end wall sealed to the tubing upstream of the point of interruption of said flow pattern and a second end wall sealed to the tubing downstream of the point of interruption of said flow pattern said pouch having side walls surrounding said tubing to define a chamber for collecting the sample of blood.
Claim 11
Independent Claim
121 words
A method of collecting blood from a donor which includes placing tubing in communication with a donor source, passing blood through said tubing in a laminar flow pattern from said cource to a collection point, collecting a donation of blood at said collection point, interrupting said laminar flow pattern intermediate said source and said collection point, and collecting a sample of blood in a pouch having a first end wall sealed to the tubing upstream of the point of interruption of said flow pattern and a second end wall sealed to the tubing downstream of the point of interruption of said flow pattern said pouch having side walls surrounding said tubing to define a chamber for collecting the sample of blood.
Claim 12
Dependent Claim
21 words
The method as defined in claim 9 further including providing an anti-coagulant at said collection point prior to passing blood thereto.
Claim 13
Dependent Claim
16 words
The method as defined in claim 10 further including maintaining said chamber free from anti-coagulant solution.
Claim 14
Dependent Claim
45 words
The method as defined in claim 9 further including insuring said laminar flow pattern by providing the tubing with a substantially constant inside diameter between said source and said collection point and interrupting said flow pattern by breaking the tubing at a frangible portion thereof.
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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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |