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1. WO2000041757 - METHOD AND APPARATUS TO COUNTERBALANCE INTRINSIC POSITIVE END EXPIRATORY PRESSURE

Publication Number WO/2000/041757
Publication Date 20.07.2000
International Application No. PCT/IB2000/000139
International Filing Date 13.01.2000
Chapter 2 Demand Filed 15.08.2000
IPC
A61M 16/00 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
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
CPC
A61M 16/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
A61M 16/0006
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
0003Accessories therefor, e.g. sensors, vibrators, negative pressure
0006with means for creating vibrations in patients' airways
A61M 16/0057
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
0057Pumps therefor
A61M 16/0069
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
0057Pumps therefor
0066Blowers or centrifugal pumps
0069the speed thereof being controlled by respiratory parameters, e.g. by inhalation
A61M 16/024
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
021operated by electrical means
022Control means therefor
024including calculation means, e.g. using a processor
A61M 16/0858
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
16Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
08Bellows; Connecting tubes
0816Joints or connectors
0841for sampling
0858Pressure sampling ports
Applicants
  • RESMED LIMITED [AU/AU]; 97 Waterloo Road North Ryde, NSW 2113, AU
Inventors
  • BERTHON-JONES, Michael; AU
  • HALLETT, Michael, David; AU
Agents
  • Spruson & Ferguson; GPO Box 3898 Sydney, New South Wales 2001, AU
Priority Data
60/116,12115.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS TO COUNTERBALANCE INTRINSIC POSITIVE END EXPIRATORY PRESSURE
(FR) PROCEDE ET APPAREIL PERMETTANT DE CONTREBALANCER LA PRESSION POSITIVE INTRINSEQUE EN FIN D'EXPIRATION
Abstract
(EN)
The invention prevents dynamic airway compression during ventilatory support of a patient. The respiratory airflow is determined by measurement or calculation, and a measure of the degree of dynamic airway compression is derived from the determined airflow. This measure is servo-controlled to be zero by increasing expiratory pressure if the measure of the degree of dynamic airway compression is large or increasing, and by reducing expiratory pressure if the measure of the degree of dynamic airway compression is small or zero.
(FR)
L'invention permet de prévenir une compression dynamique de la voie aérienne pendant une assistance respiratoire sur un sujet. L'écoulement d'air respiratoire est déterminé par des calculs ou des mesures, puis, à partir de l'écoulement d'air déterminé, on dérive une mesure du degré de compression dynamique de la voie aérienne. Pour asservir cette mesure afin qu'elle soit égale à zéro, on augmente la pression expiratoire, si le résultat de la mesure du degré de compression dynamique de la voie aérienne est élevé ou en augmentation et on réduit la pression expiratoire, si le résultat de la mesure du degré de compression dynamique de la voie aérienne est bas ou égal à zéro.
Latest bibliographic data on file with the International Bureau