Patent US2588748A successfully refreshed from Google Patents.
US3585995A
Expired / Lapsed
US
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Autotransfusion apparatus
Assignee: Individual
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Filing: 1968-09-03
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Granted: 1971-06-22
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Expires: 1988-09-03
Abstract
Abstract Blood autotransfusion apparatus is described which employs the use of a dual container arrangement for reinfusing blood which is normally lost during surgery into a living mammal such as a human patient. The arrangement includes a dual valve control system for controlling blood flow from an accumulation space, i.e. an abdominal cavity, into one container and from a previously filled container back into the patient. Thereafter switching of the dual valve control system causes blood to flow from the previously filled container into the patient and from the accumulation space into the empty or near empty container.
Inventors
- 👤 George D Perkins
- 👤 David E Workman
- 👤 Richard H Dyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02; A61M1/60; A61M1/63; A61M1/631; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
93 words
An autotransfusion apparatus comprising: first and second containers, each container having an inlet control port and an outlet control port; first means coupled to the inlet control ports for inducing blood to flow into the first and second containers; second means coupled to the outlet control ports for inducing blood to flow out of the first and second containers; and control means mechanically coupled to said first and second means for controlling the orientation thereof for selectively alternating the direction of the flow path into and out of the first and second containers.
Claim 2
Dependent Claim
93 words
An autotransfusion apparatus comprising: first and second containers, each container having an inlet control port and an outlet control port; first means coupled to the inlet control ports for inducing blood to flow into the first and second containers; second means coupled to the outlet control ports for inducing blood to flow out of the first and second containers; and control means mechanically coupled to said first and second means for controlling the orientation thereof for selectively alternating the direction of the flow path into and out of the first and second containers.
Claim 3
Dependent Claim
77 words
The apparatus as defined in claim 1 wherein; said first means comprises a first valve having a blood inlet port and a pair of outLet ports, formed therein the outlet ports of the first valve being connected to respective container inlet control ports; and said second means comprising a second valve having a pair of inlet ports and a blood outlet port, the inlet ports of the second valve being connected to respective container outlet control ports.
Claim 4
Dependent Claim
43 words
The apparatus as defined in claim 2 wherein; each of said first and second valves comprises a stationary body portion and a rotatable core portion disposed within said body portion, said core portion defining movable passageways between the outlet and inlet ports therein.
Claim 5
Dependent Claim
24 words
The apparatus as defined in claim 3 wherein said controls means includes means coupled to each of the valves for rotating the cores together.
Claim 6
Dependent Claim
26 words
The apparatus as defined in claim 2 wherein said first valve means further comprises means for applying a vacuum to the container which is receiving blood.
Claim 7
Dependent Claim
30 words
The apparatus as defined in claim 5 wherein said second valve means further comprises means for introducing filtered air into the top of the container from which blood is flowing.
Claim 8
Dependent Claim
165 words
In an autotransfusion apparatus including a vacuum source, a blood inlet, and a blood outlet the combination which comprises: first and second containers, each of the containers having an inlet port, a vacuum port and an air inlet port disposed at the top thereof and an outlet port disposed at the bottom thereof, a first two way valve connected between the blood inlet and the inlet ports of each of the containers to selectively connect the blood inlet to the inlet port of either of the containers, a second two way valve connected between the blood outlet and the outlet ports of each of the containers to selectively connect the blood outlet to the outlet port of either of the containers to the blood outlet, and control means for controlling the position of the first and second valves whereby the inlet port of one container is connected to the blood inlet and the outlet port of the other container is connected to the blood outlet.
Claim 9
Dependent Claim
165 words
In an autotransfusion apparatus including a vacuum source, a blood inlet, and a blood outlet the combination which comprises: first and second containers, each of the containers having an inlet port, a vacuum port and an air inlet port disposed at the top thereof and an outlet port disposed at the bottom thereof, a first two way valve connected between the blood inlet and the inlet ports of each of the containers to selectively connect the blood inlet to the inlet port of either of the containers, a second two way valve connected between the blood outlet and the outlet ports of each of the containers to selectively connect the blood outlet to the outlet port of either of the containers to the blood outlet, and control means for controlling the position of the first and second valves whereby the inlet port of one container is connected to the blood inlet and the outlet port of the other container is connected to the blood outlet.
Claim 10
Dependent Claim
35 words
The combination as defined in claim 7 wherein each of the valves includes a movable core member for controlling liquid flow therethrough and wherein the control means includes means for mechanically coupling the cores together.
Claim 11
Dependent Claim
149 words
The combination as defined in claim 8 wherein: the first valve includes a vacuum inlet port connected to the vacuum source and a pair of vacuum outlet ports, the vacuum outlet ports being connected to the vacuum ports in the respective containers, and the second valve includes an air inlet port and a pair of air outlet ports, the air outlet ports being connected to the air inlet ports in the respective containers, the first and second valves being operable to selectively connect the vacuum ports in one of the containers to the vacuum source and to simultaneously connect the air inlet port of the other container to the inlet port of the second valve, whereby vacuum is applied to one container for inducing the flood of blood into said container and air is supplied to the other container to permit blood to flow out of said other container.
Claim 12
Dependent Claim
37 words
The apparatus as defined in claim 9 wherein the first and second valves are disposed between the containers along a common axis and including a rigid member extending between the valves and connected to the core members.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |