WO2003105669A3 - Method and system for detecting ventricular suction - Google Patents

Method and system for detecting ventricular suction Download PDF

Info

Publication number
WO2003105669A3
WO2003105669A3 PCT/US2003/018859 US0318859W WO03105669A3 WO 2003105669 A3 WO2003105669 A3 WO 2003105669A3 US 0318859 W US0318859 W US 0318859W WO 03105669 A3 WO03105669 A3 WO 03105669A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
flow
suction
waveform
detection methods
accordance
Prior art date
Application number
PCT/US2003/018859
Other languages
French (fr)
Other versions
WO2003105669A2 (en )
Inventor
Michael Vollkron
Heinrich Schima
Gino F Morello
Robert J Benkowski
Original Assignee
Michael Vollkron
Heinrich Schima
Gino F Morello
Robert J Benkowski
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026Measuring blood flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body
    • A61M1/125Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body intravascular, i.e. introduced or implanted in an existing blood vessel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1001General aspects of blood pumps irrespective of pump type
    • A61M1/1005General aspects of blood pumps irrespective of pump type with means for making a blood flow pulsatile
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1012Constructional features thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1029Drive systems therefor
    • A61M1/1031Drive systems therefor using a motor with canned rotor, i.e. a motor enclosed within a casing along with the rotor so that the motor bearings are lubricated by the blood that is being pumped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1086Regulating or controlling systems therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body
    • A61M1/122Heart assist devices, i.e. for assisting an ailing heart, using additional pumping means in the blood circuit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate

Abstract

In a ventricular assist device system (VAD) (10), ventricular suction detection methods monitor or derive the blood flow waveform and analyze the waveform to detect suction. Suction is determined based on asymmetry of the flow waveform, plateaus in the flow waveform, and the slew rate of the flow waveform. Additionally, in accordance with other detection methods, the blood flow rate is analyzed to determine suction based on the mean flow rate falling to a predetermined low level and/or the relationship between minimum, mean and minimum flow. In accordance with still further detection methods, suchtion is determined bases on saddle sequences (i.e. localized minimums or notches) in the falling arch of the flow peak.
PCT/US2003/018859 2002-06-14 2003-06-13 Method and system for detecting ventricular suction WO2003105669A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US31931802 true 2002-06-14 2002-06-14
US60/319,318 2002-06-14

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2003243576A AU2003243576A8 (en) 2002-06-14 2003-06-13 Method and system for detecting ventricular suction
EP20030760376 EP1558303A4 (en) 2002-06-14 2003-06-13 Method and system for detecting ventricular suction
US10675669 US7396327B2 (en) 2002-01-07 2003-09-30 Blood pump system and method of operation
US12134084 US7951062B2 (en) 2002-01-07 2008-06-05 Blood pump system and method of operation

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/000516 Continuation-In-Part WO2003057013A3 (en) 2002-01-08 2003-01-08 Method and system for detecting ventricular collapse

Related Child Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2003/020268 Continuation-In-Part WO2004002552A1 (en) 2002-06-26 2003-06-26 Method and system for physiologic control of a blood pump
US10675669 Continuation-In-Part US7396327B2 (en) 2002-01-07 2003-09-30 Blood pump system and method of operation

Publications (2)

Publication Number Publication Date
WO2003105669A2 true WO2003105669A2 (en) 2003-12-24
WO2003105669A3 true true WO2003105669A3 (en) 2004-03-25

Family

ID=29735884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/018859 WO2003105669A3 (en) 2002-06-14 2003-06-13 Method and system for detecting ventricular suction

Country Status (2)

Country Link
EP (1) EP1558303A4 (en)
WO (1) WO2003105669A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017546A1 (en) 2005-04-16 2006-10-19 Impella Cardiosystems Gmbh A method for controlling a blood pump
US9795726B2 (en) 2014-06-18 2017-10-24 Heartware, Inc. Methods and devices for identifying suction events
US20160058930A1 (en) * 2014-08-26 2016-03-03 Thoratec Corporation Blood pump and method of suction detection
WO2016130846A1 (en) * 2015-02-11 2016-08-18 Thoratec Corporation Heart beat identification and pump speed synchronization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6066086A (en) * 1996-11-01 2000-05-23 Nimbus, Inc. Speed control system for implanted blood pumps
US6139487A (en) * 1997-04-02 2000-10-31 Impella Cardiotechnik Ag Intracardiac pump device
US6183412B1 (en) * 1997-10-02 2001-02-06 Micromed Technology, Inc. Implantable pump system
US20030045772A1 (en) * 2001-08-16 2003-03-06 Sanford Reich Physiological heart pump control

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7645225B2 (en) * 2000-03-27 2010-01-12 Alexander Medvedev Chronic performance control system for rotodynamic blood pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6066086A (en) * 1996-11-01 2000-05-23 Nimbus, Inc. Speed control system for implanted blood pumps
US6139487A (en) * 1997-04-02 2000-10-31 Impella Cardiotechnik Ag Intracardiac pump device
US6183412B1 (en) * 1997-10-02 2001-02-06 Micromed Technology, Inc. Implantable pump system
US20030045772A1 (en) * 2001-08-16 2003-03-06 Sanford Reich Physiological heart pump control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1558303A4 *

Also Published As

Publication number Publication date Type
EP1558303A2 (en) 2005-08-03 application
EP1558303A4 (en) 2010-12-08 application
WO2003105669A2 (en) 2003-12-24 application

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