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1. CA2394171 - DISPOSITIF DESTINE A AUGMENTER LE FLUX TRANSDERMIQUE DE SUBSTANCES ECHANTILLONNEES

Office Canada
Numéro de la demande 2394171
Date de la demande 11.12.2000
Numéro de publication 2394171
Date de publication 21.06.2001
Type de publication A1
CIB
A61B 10/00
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
BDIAGNOSTIC; CHIRURGIE; IDENTIFICATION
10Autres méthodes ou instruments pour le diagnostic, p.ex. pour le diagnostic de vaccination; Détermination du sexe; Détermination de la période d'ovulation; Instruments pour gratter la gorge
A61B 17/20
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
BDIAGNOSTIC; CHIRURGIE; IDENTIFICATION
17Instruments, dispositifs ou procédés chirurgicaux, p.ex. tourniquets
20pour la vaccination ou le nettoyage de la peau avant la vaccination
CPC
A61B 5/14532
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14532for measuring glucose, e.g. by tissue impedance measurement
A61B 5/150022
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
15Devices for taking samples of blood
150007Details
150015Source of blood
150022for capillary blood or interstitial fluid
A61B 5/150099
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
15Devices for taking samples of blood
150007Details
150053for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
150061Means for enhancing collection
150099by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
A61B 5/150221
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
15Devices for taking samples of blood
150007Details
150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
150221Valves
A61B 5/150236
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
15Devices for taking samples of blood
150007Details
150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
150236Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
A61B 5/150244
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
15Devices for taking samples of blood
150007Details
150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
150244Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
Déposants ALZA CORPORATION
Inventeurs CORMIER, MICHEL J. N.
LIN, WEIQI
THEEWES, FELIX
Données relatives à la priorité 60/172,357 16.12.1999 US
Titre
(EN) DEVICE FOR ENHANCING TRANSDERMAL FLUX OF SAMPLED AGENTS
(FR) DISPOSITIF DESTINE A AUGMENTER LE FLUX TRANSDERMIQUE DE SUBSTANCES ECHANTILLONNEES
Abrégé
(EN)
A transdermal agent sampling device (10, 120) is provided. The sampling device (10, 120) is comprised of a microblade array (2, 2') and a device (11, 12, 20, 122) for applying a partial vacuum. The microblade array (2, 2') comprises a sheet (6) having a plurality of microblades (4) for piercing the skin to a very shallow depth (i.e., 25 µm to 400 µm) to create microslits in the outermost stratum corneum layer of the skin. The partial vacuum applying device (11, 12, 20, 122) applies a partial vacuum in the range of about 0.1. to about 0.8 atm, and preferably about 0.3. to about 0.7 atm, for sampling a body analyte such as glucose in interstitial fluid. The partial vacuum is applied for a period of about 2 to about 30 seconds, and preferably about 5 to about 15 seconds. The interstial fluid is analyzed for body analyte (e.g., glucose) content or concentration.