US6132363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiovascular support control system
Assignee: L Vad Technology Inc
•
Filing: 1998-09-30
•
Granted: 2000-10-17
•
Expires: 2018-09-30
Abstract
Abstract An apparatus for assisting cardiac function of a patient includes an inflatable chamber operably positionable with respect to an aorta of the patient, a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber, and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program stored in memory. The control program controls the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient. The control program uses measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient. The program includes the steps of automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient, and using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient. A software program is connectible in electronic communication with the control program for adjusting settings of the drive unit. The software program is capable of one or more of the following functions: retrieving current values of physician programmable parameters, selectively retrieving a history of the drive unit operation including error detection records, displaying a continuous ECG, and/or displaying a single-beat sample of aortic pressure waveform obtained in real time from the patient.
Inventors
- 👤 Paul S. Freed
- 👤 Michael Psakhis
- 👤 Paul G. DeDecker
- 👤 Adrian Kantrowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:34
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/135; A61M60/139; A61M60/148; A61M60/20; A61M60/247; A61M60/253; A61M60/268; A61M60/40; A61M60/424; A61M60/427; A61M60/50; A61M60/508; A61M60/515; A61M60/538; A61M2205/00; A61M2205/33; A61M2205/3303; A61M2205/50; A61M2205/52; A61M2230/00; A61M2230/04; A61M2230/30; A61M60/274
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
144 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein the control program includes a patient parameter table having physician programmable parameters for modifying cardiac function assistance provided to the patient.
Claim 2
Independent Claim
144 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein the control program includes a patient parameter table having physician programmable parameters for modifying cardiac function assistance provided to the patient.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1 wherein each of the physician programmable parameters has a predefined default value.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 further comprising: a software program connectible in electronic communication with the control program for adjusting settings of the drive unit.
Claim 5
Dependent Claim
16 words
The apparatus of claim 3 wherein the software program retrieves current values of physician programmable parameters.
Claim 6
Independent Claim
153 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein each of the physician programmable parameters is restricted to a value greater than or equal to a predefined minimum value and less than or equal to a predefined maximum value.
Claim 7
Independent Claim
153 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein each of the physician programmable parameters is restricted to a value greater than or equal to a predefined minimum value and less than or equal to a predefined maximum value.
Claim 8
Independent Claim
157 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program selectively retrieves a history of the drive unit operation including error detection records.
Claim 9
Independent Claim
157 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program selectively retrieves a history of the drive unit operation including error detection records.
Claim 10
Independent Claim
148 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program displays a continuous ECG.
Claim 11
Independent Claim
148 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program displays a continuous ECG.
Claim 12
Independent Claim
159 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber: a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program displays a single-beat sample of aortic pressure waveform obtained in real time from the patient.
Claim 13
Independent Claim
159 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber: a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient; and a software program connectible in electronic communication with the control program for adjusting settings of the drive unit, wherein the software program displays a single-beat sample of aortic pressure waveform obtained in real time from the patient.
Claim 14
Independent Claim
161 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein the control program interrupts counterpulsation for two cardiac cycles to perform a partial cycle in order to obtain an aortic pressure waveform, a Q-S 2 interval is measured by the control program from the aortic pressure waveform obtained.
Claim 15
Independent Claim
161 words
An apparatus for assisting cardiac function of a patient comprising: an inflatable chamber operably positionable with respect to an aorta of the patient; a percutaneous access device implantable with respect to a hypogastric region of the patient and connectible in fluid communication with the inflatable chamber; and a drive unit connectible through the percutaneous access device for selectively inflating and deflating the inflatable chamber in accordance with a control program, the control program for controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of the physiology of the patient, and the control program using measured values as modified in accordance with the control program and physician programmable parameters for assisting cardiac function of the patient, wherein the control program interrupts counterpulsation for two cardiac cycles to perform a partial cycle in order to obtain an aortic pressure waveform, a Q-S 2 interval is measured by the control program from the aortic pressure waveform obtained.
Claim 16
Dependent Claim
43 words
The apparatus of claim 9 wherein the control program uses the interval to adjust inflation timing of the blood pump, as modified in accordance with the physician programmable parameters, in response to changes in the heart rate and hemodynamic state of the patient.
Claim 17
Dependent Claim
103 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and providing a patient parameter table having a plurality of physician programmable parameters for modifying cardiac function assistance provided to the patient.
Claim 18
Dependent Claim
103 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and providing a patient parameter table having a plurality of physician programmable parameters for modifying cardiac function assistance provided to the patient.
Claim 19
Dependent Claim
17 words
The program of claim 11 wherein each of the physician programmable parameters has a predefined default value.
Claim 20
Dependent Claim
28 words
The program of claim 11 further comprising the step of: adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit.
Claim 21
Dependent Claim
16 words
The program of claim 13 wherein the software program retrieves current values of physician programmable parameters.
Claim 22
Dependent Claim
113 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; and using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient, wherein each of the physician programmable parameters is restricted to a value greater than or equal to a predefined minimum value and less than or equal to a predefined maximum value.
Claim 23
Dependent Claim
113 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; and using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient, wherein each of the physician programmable parameters is restricted to a value greater than or equal to a predefined minimum value and less than or equal to a predefined maximum value.
Claim 24
Dependent Claim
117 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program selectively retrieves a history of the drive unit operation including error detection records.
Claim 25
Dependent Claim
117 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program selectively retrieves a history of the drive unit operation including error detection records.
Claim 26
Dependent Claim
108 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program displays a continuous ECG.
Claim 27
Dependent Claim
108 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program displays a continuous ECG.
Claim 28
Dependent Claim
119 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program displays a single-beat sample of aortic pressure waveform obtained in real time from the patient.
Claim 29
Dependent Claim
119 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; and adjusting settings of the drive unit with a software program connectible in electronic communication with the drive unit, wherein the software program displays a single-beat sample of aortic pressure waveform obtained in real time from the patient.
Claim 30
Dependent Claim
112 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; interrupting counterpulsation for two cardiac cycles to perform a partial cycle in order to obtain an aortic pressure waveform; and measuring a Q-S 2 interval from the aortic pressure waveform obtained.
Claim 31
Dependent Claim
112 words
A control program for assisting cardiac function during a cardiac cycle of a patient having a cardiac assist device with drive unit connectible to an inflatable chamber operatively positionable with respect to an aorta of the patient comprising the steps of: automatically controlling the drive unit in response to a periodically scheduled patient monitoring routine for measuring values of physiology of the patient; using measured values as modified in accordance with physician programmable parameters for assisting cardiac function of the patient; interrupting counterpulsation for two cardiac cycles to perform a partial cycle in order to obtain an aortic pressure waveform; and measuring a Q-S 2 interval from the aortic pressure waveform obtained.
Claim 32
Dependent Claim
47 words
The program of claim 19 further comprising the step of: using the measured Q-S 2 interval to adjust inflation timing of the blood pump, as modified in accordance with the physician programmable parameters, in response to changes in the heart rate and hemodynamic state of the patient.
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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) | 2003-10-17 | 2004-04-17 | 2004-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-17 | 2008-04-17 | 2008-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-17 | 2012-04-17 | 2012-10-17 | $7700.00 | Window Closed / Lapsed |