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1. WO2020068480 - MAP ESTIMATION ON VAD PATIENTS

Publication Number WO/2020/068480
Publication Date 02.04.2020
International Application No. PCT/US2019/051417
International Filing Date 17.09.2019
IPC
A61M 1/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
A61M 1/12 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
CPC
A61B 5/02108
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
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
021Measuring pressure in heart or blood vessels
02108from analysis of pulse wave characteristics
A61B 5/746
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
74Details of notification to user or communication with user or patient
746Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
A61M 1/101
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
A61M 1/1086
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
1086Regulating or controlling systems therefor
A61M 1/122
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
122Heart assist devices, i.e. for assisting an ailing heart, using additional pumping means in the blood circuit
A61M 1/125
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
125intravascular, i.e. introduced or implanted in an existing blood vessel
Applicants
  • HEARTWARE, INC. [US]/[US]
Inventors
  • REYES, Carlos
  • CASAS, Fernando
Agents
  • CHRISTOPHER, John
  • BARTEN, Garrett Ari
  • TISDAHL, Elissa
Priority Data
62/737,24427.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MAP ESTIMATION ON VAD PATIENTS
(FR) ESTIMATION DE LA PAM SUR DES PATIENTS ÉQUIPÉS D'UN DAV
Abstract
(EN)
A method of determining a mean arterial pressure index of a patient having an implantable blood pump including determining a pump speed and a pump flow value; analyzing the pump speed and the pump flow value to a pump loss constant value; determining a graft hydraulic resistance value during a systolic phase of a cardiac cycle based on the analysis of the pump speed and the pump flow value to the pump loss constant value; determining a mean arterial pressure index during a diastolic phase of the cardiac cycle based on the determined graft hydraulic resistance value; comparing the mean arterial pressure index of the patient to a mean arterial pressure index range; and generating an alert when the mean arterial pressure index varies with respect to a mean arterial pressure index range.
(FR)
Procédé de détermination d'un indice de pression artérielle moyenne (PAM) chez un patient équipé d'une pompe à sang implantable, qui comprend la détermination de la vitesse de la pompe et de la valeur du débit de la pompe ; l'analyse de la vitesse de la pompe et de la valeur du débit de la pompe pour une valeur constante des pertes de charge de la pompe ; la détermination de la valeur de la résistance hydraulique de l'implant pendant une phase systolique d'un cycle cardiaque sur la base de l'analyse de la vitesse de la pompe et de la valeur du débit de la pompe pour la valeur constante des pertes de charge de la pompe ; la détermination d'un indice de pression artérielle moyenne pendant une phase diastolique du cycle cardiaque sur la base de la valeur de la résistance hydraulique déterminée pour l'implant ; la comparaison de l'indice de pression artérielle moyenne du patient avec une plage d'indice de pression artérielle moyenne ; et la génération d'une alerte lorsque l'indice de pression artérielle moyenne varie par rapport à la plage d'indice de pression artérielle moyenne.
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