USH1324H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extracorporeal circulation system
Assignee: Terumo BCT Inc
•
Filing: 1992-09-08
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Granted: 1994-06-07
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Expires: 2012-09-08
Abstract
Abstract A system for controlling and monitoring the extracorporeal circulation of fluids, which is particularly useful in controlling and monitoring the circulation of blood and cardioplegia solution in surgical procedures. A set of perfusion assemblies are mounted in a transportable console, each perfusion assembly having a separable pump and control module pod. Virtually all the instrumentation for the monitoring and controlling of the pump and the fluid being pumped by that perfusion assembly are present on the pump and control module pod for that perfusion assembly, without the need for any separate control screen. Further, the perfusion assembly uses removable circuit cards and associated instrumentation strips to custom configure the perfusion assembly for each application. The perfusion assembly thereby provides complete information at a glance and complete control of the perfusion assembly by using dedicated controls that are grouped to each perfusion assembly. It is flexible in being configured to the desires of the user, is easy to use and involves a minimum of clutter.
Inventors
- 👤 William D. Dalke
- 👤 Gary A. Gruszecki
- 👤 Bruce Ellingboe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:15
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/367; A61M1/3607; A61M1/3609; A61M1/3623; A61M1/3664
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
99 words
A system controllable by a system operator for extracorporeal pumping of fluids between a pump assembly and a patient, comprising an instrumentation panel for controlling and monitoring at least one of a pumping or a patient parameter, a housing having at least one receptacle adapted to receive at least one selected circuit card removably attached to the receptacle and in electrical communication with the instrumentation panel for processing electrical signals indicative of the parameter, said selected circuit card being selected from a plurality of different circuit cards, each different circuit card having circuitry for the processing of different parameters.
Claim 2
Independent Claim
99 words
A system controllable by a system operator for extracorporeal pumping of fluids between a pump assembly and a patient, comprising an instrumentation panel for controlling and monitoring at least one of a pumping or a patient parameter, a housing having at least one receptacle adapted to receive at least one selected circuit card removably attached to the receptacle and in electrical communication with the instrumentation panel for processing electrical signals indicative of the parameter, said selected circuit card being selected from a plurality of different circuit cards, each different circuit card having circuitry for the processing of different parameters.
Claim 3
Dependent Claim
96 words
The system of claim 1, further comprising said plurality of circuit cards, wherein said plurality of circuit cards are for processing signals indicative of at least one of pressure of the pumped fluid, volume of the pumped fluid, temperature of the pumped fluid, temperature of the patient, the presence of air in the pumped fluid, level of the pumped fluid in a reservoir, the hemoglobin oxygen saturation level of the pumped fluid, the hematocrit of the pumped fluid, the pulsation of the pumped fluid, the time of pumping of the pumped fluid and the cardiac index.
Claim 4
Dependent Claim
33 words
The system of claim 1, wherein the system includes a communications port to receive an external communications line to transmit pumping parameter information between the system and a location separate from the system.
Claim 5
Dependent Claim
34 words
The system of claim 1, wherein the system includes a pump housing and a detachably attached control module, the control module having said instrumentation panel, and the pump housing having a second instrumentation panel.
Claim 6
Dependent Claim
28 words
The system of claim 4, wherein the second instrumentation panel includes controls to start and stop the pumping of fluids and to control and monitor the pumping rate.
Claim 7
Dependent Claim
32 words
The system of claim 5, wherein the second instrumentation panel includes controls to control and monitor the pumping rate in both volume of fluid pumped over time and speed of the pump.
Claim 8
Dependent Claim
29 words
The system of claim 5, wherein the second instrumentation panel includes controls for turning the pump in a first direction of in a second direction opposite the first direction.
Claim 9
Dependent Claim
31 words
The system of claim 5, wherein the system includes said pump assembly, and said pump is a peristaltic pump that receives flexible tubing that is occluded by rollers on a rotor.
Claim 10
Dependent Claim
20 words
The system of claim 5, wherein the second instrumentation panel includes an indicator to indicate that the pump is overloaded.
Claim 11
Dependent Claim
18 words
The system of claim 5, wherein the second instrumentation panel includes a control for muting an audible alarm.
Claim 12
Dependent Claim
47 words
The system of claim 1, wherein the instrumentation panel includes a plurality of instrumentation sets, each instrumentation set having a plurality of switches activatable by the operator, and each circuit card being in electrical communication with an associated instrumentation set for monitoring the at least one parameter.
Claim 13
Dependent Claim
60 words
The system of claim 11, wherein the instrumentation panel includes a different set of labels associated with each different circuit card selected by the operator, each label set being detachably attached to an associated instrumentation set to label instrumentation set switches, so that a circuit card and associated instrumentation set and associated label set are used to monitor the parameter.
Claim 14
Dependent Claim
24 words
The system of claim 12, wherein the instrumentation sets to which label sets may be detachably attached have substantially the same sets of switches.
Claim 15
Dependent Claim
31 words
The system of claim 3, wherein at least one instrumentation set includes at least one alarm light, at least one alpha-numerical display, and a set of at least one control switch.
Claim 16
Dependent Claim
21 words
The system of claim 14, wherein a label set and circuit card are for monitoring a level in a fluid reservoir.
Claim 17
Dependent Claim
24 words
The system of claim 14, wherein a label set and circuit card are for monitoring the presence of air in the fluid being pumped.
Claim 18
Dependent Claim
25 words
The system of claim 14, wherein a label set and circuit card are to monitor the hemoglobin oxygen saturation level of the fluid being pumped.
Claim 19
Dependent Claim
22 words
The system of claim 14, wherein a label set and circuit card are to monitor the hematocrit of the fluid being pumped.
Claim 20
Dependent Claim
21 words
The system of claim 14, wherein a label set and circuit card are to monitor the cardiac index of the patient.
Claim 21
Dependent Claim
16 words
The system of claim 14, wherein a label set and circuit card are to monitor time.
Claim 22
Dependent Claim
34 words
The system of claim 20, wherein the label set includes labelling for at least one instrumentation set switch for programming an amount of time, after the elapse of which an alarm light is activated.
Claim 23
Dependent Claim
16 words
The system of claim 14, wherein a label set and circuit card are to monitor temperature.
Claim 24
Dependent Claim
32 words
The system of claim 22, wherein the temperature being monitored is at least one of rectal temperature of the patient, esophageal temperature of the patient and temperature of the fluid being pumped.
Claim 25
Dependent Claim
50 words
The system of claim 22, wherein the label set includes labelling for at least one instrumentation set switch to program an upper temperature limit and a lower temperature limit, whereby an alarm light is activated if the monitored temperature is outside of the range between the lower and upper limit.
Claim 26
Dependent Claim
22 words
The system of claim 14, wherein a label set and circuit card are to monitor the volume of fluid that is pumped.
Claim 27
Dependent Claim
27 words
The system of claim 25, wherein the label set includes labelling for at least one instrumentation set switch to program a volume of fluid to be pumped.
Claim 28
Dependent Claim
26 words
The system of claim 25, wherein the label set includes labelling for at least one instrumentation set switch to monitor the total volume of fluid pumped.
Claim 29
Dependent Claim
21 words
The system of claim 14, wherein a label set and circuit card are monitoring the pressure of the fluid being pumped.
Claim 30
Dependent Claim
59 words
The system of claim 28, wherein the label set includes a labelling for at least one instrumentation set switch to program at least one of an upper pressure limit and a lower pressure limit, whereby an alarm light is activated if the pressure is at least one of below the lower pressure limit or above the upper pressure limit.
Claim 31
Dependent Claim
34 words
The system of claim 29, further comprising means for automatically adjusting the pump rate to maintain the fluid pressure at least one of above the lower pressure limit or below the upper pressure limit.
Claim 32
Dependent Claim
44 words
The system of claim 30, wherein the instrumentation sets include a control for preventing the automatic adjustment means from automatically adjusting the pump rate to maintain the fluid pressure at least one of above the lower pressure limit or below the upper pressure limit.
Claim 33
Dependent Claim
24 words
The system of claim 14, wherein a label set and circuit card are to monitor and control the pulsation of the fluid being pumped.
Claim 34
Dependent Claim
26 words
The system of claim 32, wherein the label set includes labelling for at least one instrumentation set switch to cause pulsation of the fluid being pumped.
Claim 35
Dependent Claim
25 words
The system of claim 33, wherein the label set includes labelling for at least one instrumentation set switch to program at least one pulsation parameter.
Claim 36
Dependent Claim
24 words
The system of claim 34, wherein the label set includes labelling for at least one instrumentation set switch to program pulsation beats per minute.
Claim 37
Independent Claim
103 words
A method for extracorporeal pumping of fluids between a pump assembly and a patient, using a pump assembly, comprising selecting at least one pumping parameter for monitoring from a plurality of pumping parameters that can be monitored, each pumping parameter that can be monitored being associated with a circuit card to process signals indicative of said pumping parameter, removable attaching the circuit card associated with each selected pumping parameter to the pump assembly by placing it into one of a plurality of circuit card receptacles in the pump assembly, and operating the pump assembly to pump fluids while monitoring the selected pump parameters.
Claim 38
Independent Claim
103 words
A method for extracorporeal pumping of fluids between a pump assembly and a patient, using a pump assembly, comprising selecting at least one pumping parameter for monitoring from a plurality of pumping parameters that can be monitored, each pumping parameter that can be monitored being associated with a circuit card to process signals indicative of said pumping parameter, removable attaching the circuit card associated with each selected pumping parameter to the pump assembly by placing it into one of a plurality of circuit card receptacles in the pump assembly, and operating the pump assembly to pump fluids while monitoring the selected pump parameters.
Claim 39
Dependent Claim
47 words
The method of claim 36, wherein the pump assembly includes a monitor for monitoring said pump parameters, the monitor including a plurality of control sets so that each circuit card associated with a selected pump parameter is associated with a control set for monitoring said pump parameter.
Claim 40
Dependent Claim
49 words
The method of claim 37, wherein at least two of the instrumentation sets are substantially the same and each selected pump parameter and associated circuit card and associated control set is associated with a label set with identifies controls on the instrumentation set to monitor the selected pump parameter.
Claim 41
Dependent Claim
42 words
The method of claim 38, wherein the selected pump parameters include the presence of air in the fluid being pumped, and the instrumentation set associated with the presence of air in the fluid being pumped includes an alarm to indicate such presence.
Claim 42
Dependent Claim
21 words
The method of claim 38, wherein the selected pump parameters include the hemoglobin oxygen saturation level of the fluid being pumped.
Claim 43
Dependent Claim
39 words
The method of claim 38, wherein the selected pump parameters include the hematocrit of the fluid being pumped, and the set of controls associated with the hematocrit include a display to display the hematocrit as measured by a sensor.
Claim 44
Dependent Claim
57 words
The method of claim 38, wherein the selected pump parameters include the pulsation of the fluid being pumped, and the instrumentation set associated with the pulsation of the fluid being pumped include a set of controls to choose whether the pumping is pulsed or not pulsed, and controls for programming pulsation parameters including pulsation beats per minute.
Claim 45
Dependent Claim
38 words
The method of claim 38, wherein the selected pump parameters includes the time of pumping, and the instrumentation set associated with the time of pumping includes a set of controls for programming a measurement of elapsed pump time.
Claim 46
Dependent Claim
47 words
The method of claim 38, wherein the selected pump parameters include whether the fluid level in a fluid reservoir is below a predetermined level, and the instrumentation set associated with the level includes an alarm to indicate that the fluid level has dropped below said predetermined level.
Claim 47
Dependent Claim
16 words
The method of claim 38, wherein the instrumentation set includes a display of the cardiac index.
Claim 48
Dependent Claim
60 words
The method of claim 38, wherein the selected pump parameters include measured temperature and the instrumentation set associated with temperature include a display of the temperature and a set of controls to choose an upper temperature limit and a lower temperature limit and an alarm to indicate that the temperature is outside the range between the upper and lower limits.
Claim 49
Dependent Claim
38 words
The method of claim 46, wherein said choosing controls includes an up button to increase the displayed temperature, a down button to decrease the display temperature and an enter button to choose the displayed value as a limit.
Claim 50
Dependent Claim
44 words
The method of claim 38, wherein the selected pump parameters include the volume of fluid pumped, and the instrumentation set associated with the volume of fluid pumped includes a display of volume and a set of controls to choose the volume to be pumped.
Claim 51
Dependent Claim
41 words
The method of claim 48, wherein the choosing controls includes an up button to increase the displayed volume, a down button to decrease the displayed volume and an enter button to choose the displayed volume as the volume to be pumped.
Claim 52
Dependent Claim
37 words
The method of claim 38, wherein the pump assembly includes a second instrumentation panel, and further comprising controlling the pump rate through the second instrumentation panel utilizing a pump rate display and a pump rate adjustment control.
Claim 53
Dependent Claim
36 words
The method of claim 50, wherein the second instrumentation panel includes controls for selecting the size of tubing used in a peristaltic pump in the pump assembly and controls for choosing the direction of fluid flow.
Claim 54
Dependent Claim
65 words
The method of claim 38, wherein the selected pump parameters include the pressure of the fluid being pumped, and the instrumentation set associated with the pressure of the fluid being pumped includes a display of fluid pressure, a set of controls to choose a pressure limit and an alarm to indicate if the pressure is a preselected one of above or below the pressure limit.
Claim 55
Dependent Claim
38 words
The method of claim 52, wherein said choosing controls includes an up button to increase the displayed pressure, a down button to decrease the displayed pressure and an enter button to choose the displayed value as a limit.
Claim 56
Dependent Claim
39 words
The method of claim 52, wherein the pump assembly includes means for automatically adjusting the pump rae to maintain the fluid pressure a preselected one of below the chosen upper pressure limit or above the chosen lower pressure limit.
Claim 57
Dependent Claim
41 words
The method of claim 54, wherein the instrumentation set includes a control for preventing the automatic adjustment means from automatically adjusting the pump rate to maintain the fluid pressure the preselected one of the above or below the chosen pressure limit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |