US Patent No: 5,464,388
Number of patents in Portfolio can not be more than 2000
Cardioplegia administration system and method
Stats
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Nov 7, 1995
Issued date -
Feb 6, 1995
filing date -
08/383,940
serial no -
Expired
status
Importance
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Abstract
A cardioplegia administration system includes a tubing set, a positive displacement pump and a mixing system. The tubing set has a cardioplegia supply tube; a blood supply tube; and a cardioplegia administration tube connected to the cardioplegia and blood supply tubes. The positive displacement pump engages the cardioplegia administration tube to pump fluid therethrough. The mixing system includes pinch valves for alternately-continually pinching the cardioplegia and blood supply tubes to close and open the cardioplegia and blood supply tubes such that only one of the cardioplegia and blood supply tubes is open at a time, and a controller that controls the intervals during which the pinch valves are open to control the ratio of the cardioplegia medication and blood or blood substitute administered through the cardioplegia administration tube. The method of this invention includes the step, among others, of operating the pinch valves to close and open the cardioplegia and blood supply tubes so that only one of the cardioplegia and blood supply tubes is open at a time while controlling the intervals during which the pinch valves are open to control the ratio of the cardioplegia medication and blood or blood substitute administered through the cardioplegia administration tube.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,425,116 Control system for fluid flow apparatus | 69 | 1982 | |
| 4,526,515 Fluid pumping assembly including a prepackaged fluid circuit module | 142 | 1982 | |
| 4,637,813 Blood processing assembly including a prepackaged fluid circuit module | 96 | 1982 | |
| 5,207,642 Closed multi-fluid delivery system and method | 210 | 1989 | |
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| 4,846,177 Combination fluid path and mount for heat exchanger | 16 | 1988 | |
| 5,057,278 Sterile loop calibration system | 24 | 1990 | |
| 5,094,820 Pump and calibration system | 33 | 1990 | |
| 5,403,281 Inline heat exchanger and cardioplegia system | 131 | 1992 | |
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| 4,798,580 Disposable peristaltic pump cassette system | 132 | 1987 | |
| 5,125,891 Disposable vacuum/peristaltic pump cassette system | 82 | 1988 | |
| 5,195,960 Disposable vacuum/peristaltic pump cassette system | 79 | 1991 | |
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| 4,425,113 Flow control mechanism for a plasmaspheresis assembly or the like | 51 | 1982 | |
| 4,925,444 Closed multi-fluid delivery system and method | 199 | 1987 | |
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| 4,372,304 Flow control system and restrictor for use therein | 13 | 1980 | |
| 4,681,563 Flow control system | 39 | 1985 | |
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| 4,673,389 Sequence valve for piggyback IV administration | 18 | 1984 | |
| 4,714,463 Sequence valve for piggyback IV administration with tube reversal prevention | 55 | 1985 | |
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| 5,304,126 Infusion system having plural fluid flow lines | 39 | 1990 | |
| 5,306,242 Recirculation through plural pump cassettes for a solution compounding apparatus | 37 | 1992 | |
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| 4,187,057 Peristaltic infusion pump and disposable cassette for use therewith | 189 | 1978 | |
| 4,256,437 Peristaltic infusion pump and method | 110 | 1978 | |
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| 4,626,241 Apparatus and method for controlling the parenteral administration of fluids | 21 | 1985 | |
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| 5,094,260 Proportional valve and pressure control system | 23 | 1990 | |
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| 5,267,956 Surgical cassette | 139 | 1992 | |
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| 4,259,985 Three-way solenoid-operated pinch valve assembly | 24 | 1978 | |
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| 5,320,502 Infusion device with disposable elements | 12 | 1991 | |
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| 5,403,277 Irrigation system with tubing cassette | 33 | 1993 | |
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| 4,713,051 Cassette for surgical irrigation and aspiration and sterile package therefor | 113 | 1985 | |
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| 5,181,842 Peristaltic infusion device | 32 | 1991 | |
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| 5,358,481 Apparatus and methods for controlling mixtures of blood and cardioplegia | 30 | 1993 | |
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| 5,328,057 Paint dispenser apparatus | 42 | 1993 | |
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| 4,793,589 Piston valve with proportional solenoid controlled pilot valve | 17 | 1987 | |
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| 4,524,802 Pinch valve | 47 | 1984 | |
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| 4,888,004 Method and apparatus for purging tubing network of blood processing system | 9 | 1987 | |
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| 5,350,083 Condiment dispensing device | 16 | 1993 | |
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| 4,493,710 Intravenous drip rate control device | 30 | 1983 | |
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| 4,830,581 Apparatus for dispensing measured quantities of a liquid material | 5 | 1987 | |
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| 4,537,561 Peristaltic infusion pump and disposable cassette for use therewith | 175 | 1983 | |
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| 5,154,693 Flow control device having selectable alternative fluid pathways | 32 | 1990 | |
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| 4,842,584 Disposable fluid infusion pumping chamber cassette and drive mechanism thereof | 79 | 1987 | |
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| 4,445,826 Peristaltic pump apparatus | 23 | 1982 | |
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| 5,385,540 Cardioplegia delivery system | 109 | 1993 | |
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| 4,333,486 Electronic valve controller | 10 | 1980 | |
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| 4,735,558 Peristaltic pump latching mechanism | 64 | 1986 | |
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| 5,199,604 Irrigation system and method for delivering a selected one of multiple liquid solutions to a treatment site | 65 | 1991 | |
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| 4,889,148 Flow control valve for a dispensing system | 17 | 1988 | |
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| 4,887,636 Apparatus for the continuous control of solenoid valves which are normally designed for intermittent operation | 9 | 1986 | |
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| 4,998,914 Procedure for the perfusion of cavities in objects and device for executing the procedure | 48 | 1989 | |
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| 4,249,923 Cardioplegic fluid refrigeration and delivery system | 46 | 1979 | |
| 4,496,133 Pinch valve assembly | 9 | 1982 | |
| 4,512,764 Manifold for controlling administration of multiple intravenous solutions and medications | 82 | 1982 | |
| 4,559,036 Apparatus for controlling administration of multiple intravenous solutions and medications | 125 | 1983 | |
| 4,651,898 Milk dispenser | 21 | 1984 | |
| 4,874,359 Power infuser | 81 | 1987 | |
| 4,993,594 Multi-constituent mixing and metering dispenser | 27 | 1989 | |
| 5,044,902 Cartridge for peristaltic pump with a flexible tube, and peristaltic pump fitted with such a cartridge | 26 | 1990 | |
| 5,318,515 Intravenous flow regulator device and associated method | 31 | 1992 | |