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1. (WO1997018003) SYSTEM FOR DETECTING TARGET RESPIRATORY FLOW RATES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018003 International Application No.: PCT/US1996/018042
Publication Date: 22.05.1997 International Filing Date: 12.11.1996
IPC:
A61B 5/087 (2006.01) ,A61M 15/00 (2006.01) ,A61M 16/00 (2006.01) ,A61M 16/08 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
08
Measuring devices for evaluating the respiratory organs
087
Measuring breath flow
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES 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
15
Inhalators
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES 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
16
Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES 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
16
Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
08
Bellows; Connecting tubes
Applicants:
REGENTS OF THE UNIVERSITY OF MINNESOTA [US/US]; Morrill Hall 100 Church Street S.E. Minneapolis, MN 55455, US
Inventors:
WARWICK, Warren, J.; US
HANSEN, Leland, G.; US
Agent:
SCHWAPPACH, Karl, G.; Mueting, Raasch, Gebhardt & Schwappach, P.A. P.O. Box 581415 Minneapolis, MN 55458-1415, US
Priority Data:
08/558,83815.11.1995US
Title (EN) SYSTEM FOR DETECTING TARGET RESPIRATORY FLOW RATES
(FR) DISPOSITIF DE DETECTION DE DEBIT RESPIRATOIRE CIBLE
Abstract:
(EN) An air flow system (10) for detecting target flow rates as a function of an opening (32, 42) in a flow restrictor (18, 20). A negative pressure sensor (50, 52) is triggered in response to a negative pressure condition in a chamber (23, 25) in the flow restrictor (18, 20). Target flow rates are preselected by using a flow restrictor (18, 20) having a particular size restrictor. Triggering of the negative pressure sensor (50, 52) may be used for controlling various medical treatments. A signal generated when a target flow rate is reached may be used for administering aerosols during inhalation, activation of HFCC therapy during exhalation, or to control various other medical treatments. The air flow system (10) allows for selection of a narrow flow rate range for administering aerosols during inhalation to target particular areas in the respiratory tree as major deposition sites for the aerosols.
(FR) L'invention a trait à un dispositif à flux d'air (10) permettant la détection de débits cibles en fonction d'une ouverture (32, 42) ménagée dans un limiteur de flux (18, 20). Un détecteur de dépression (50, 52) se déclenche en réaction à une situation dépressionnaire dans une enceinte (23, 25) se trouvant dans le limiteur de flux (18, 20). On présélectionne des débits cibles en utilisant un limiteur de flux (18, 20) d'une taille particulière. Il est possible de se servir du fonctionnement du détecteur de dépression (50, 52) pour la gestion de traitements à caractère médical. On peut utiliser un signal produit lorsque un débit cible est atteint pour administrer des aérosols lors de l'inspiration, pour la mise en oeuvre d'une thérapeutique basée sur la compression thoracique à haute fréquence ou pour agir sur d'autres traitements à caractère médical. Le dispositif à flux d'air (10) permet de sélectionner une plage étroite de débit pour l'administration d'aérosols lors de l'inspiration et ce, afin de cibler des régions particulières de l'arbre bronchique comme principaux sites de dépôt des aérosols
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996077260