Patent US4966579A successfully refreshed from Google Patents.
US4966579A
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US
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Apparatus for dosed continuous simultaneous infusion of a plurality of infusion solutions or medicaments
Assignee: Fresenius SE and Co KGaA
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Filing: 1989-05-22
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Granted: 1990-10-30
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Expires: 2009-05-22
Abstract
Abstract An apparatus is described for dosed continuous simultaneous infusion of several solutions or medicaments which are arranged in a plurality of containers (25, 26) or syringes (3, 4). From said containers (25, 26) or syringes (3, 4) connecting conduits or tubes (18-21) lead which are connected via a junction piece (27) to a patient conduit (23). In each of the connecting conduits (18-21) a pump (1-4) and a clamp (5-8) are provided which are each controlled via a central processing unit (17). Downstream of said actuating means in the patient conduit (23) a flow element (14) is provided which on detection of a flow stop causes the control means (17) to deactivate the entire apparatus.
Inventors
- 👤 Hans-Dietrich Polaschegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/168; A61M5/16831; A61M5/16804; A61M5/16827; A61M2205/00; A61M2205/60; A61M2205/6063; A61M2205/6072; A61M5/1407; A61M5/1408; A61M5/142; A61M5/145; A61M5/1452; A61M5/1456
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
Apparatus for dosed continuous simultaneous infusion of a plurality of infusion or medicaments solutions comprising at least one pump, delivery conduits which lead from containers containing the infusion or medicaments solutions and are connected via a junction piece to a common patient conduit, valve which are provided in each delivery conduit, a flow sensor detecting the flow in the patient conduit and a control unit which is operatively connected to the valves, the pump and the flow sensor, characterized in that the flow sensor (14) is arranged downstream of the pump (1-4) and that the control unit (17) causes the valves (5-8) to close on detection of a fluid stop by the flow sensor.
Claim 2
Dependent Claim
114 words
Apparatus for dosed continuous simultaneous infusion of a plurality of infusion or medicaments solutions comprising at least one pump, delivery conduits which lead from containers containing the infusion or medicaments solutions and are connected via a junction piece to a common patient conduit, valve which are provided in each delivery conduit, a flow sensor detecting the flow in the patient conduit and a control unit which is operatively connected to the valves, the pump and the flow sensor, characterized in that the flow sensor (14) is arranged downstream of the pump (1-4) and that the control unit (17) causes the valves (5-8) to close on detection of a fluid stop by the flow sensor.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1, characterized in that the flow sensor (14) is a drip detector.
Claim 4
Dependent Claim
21 words
Apparatus according to claim 1 or 2, characterized in that a vent means (22) is connected to the junction piece (27).
Claim 5
Dependent Claim
23 words
Apparatus according to claim 3, characterized in that the vent means (22) is formed as tube piece on which a valve (9) engages.
Claim 6
Dependent Claim
20 words
Apparatus according to claim 3, characterized in that the vent means (22) is closed with a hydrophobic sterile filter (28).
Claim 7
Dependent Claim
70 words
Apparatus according to any one of claims 1 to 5, characterized in that in the patient conduit (23) upstream of the flow sensor (14) an air detector (13) is arranged which is connected to the control unit (17) which in response to the signal of the air detector (13) in the vent phase controls the valves (5, 8, 9, 11) and the pump (1-4) in accordance with a predetermined program.
Claim 8
Dependent Claim
56 words
Apparatus according to any one of claims 1 to 6 characterized in that downstream of the flow sensor (14) in the patient conduit (23) a further shutoff valve (12) is arranged which on detection of a fluid stop by the flow sensor (14) closes the patient conduit (23) with the aid of the control unit (17).
Claim 9
Dependent Claim
37 words
Apparatus according to any one of claims 1 to 7 characterized in that to the junction piece (27) a gravity infusion means (16) is connected via a connecting conduit (36) into which a valve (11) is inserted.
Claim 10
Dependent Claim
40 words
Apparatus according to any one of claims 1 to 8, characterized in that to the junction piece (27) a CVD measuring means (15) is connected via a further connecting conduit (35) which can be shut off by a valve (10).
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) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |