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1. (US20090096467) Contact free absolute position determination of a moving element in a medication delivery device

Office : United States of America
Application Number: 12298330 Application Date: 25.04.2007
Publication Number: 20090096467 Publication Date: 16.04.2009
Grant Number: 08049519 Grant Date: 01.11.2011
Publication Kind : B2
Prior PCT appl.: Application Number:PCTEP2007054069 ; Publication Number: Click to see the data
IPC:
G01R 27/26
A61B 18/18
A61M 5/50
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
26
Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
18
by applying electromagnetic radiation, e.g. microwaves
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
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
50
having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
Applicants: Novo Nordisk A/S
Inventors: Nielsen Preben
Von Münchow Bodo
Agents: Nicolas Wesley A.
Began Marc A.
Priority Data: 06008597 26.04.2006 EP
Title: (EN) Contact free absolute position determination of a moving element in a medication delivery device
Abstract: front page image
(EN)

The present invention relates to a medication delivery device for expelling set doses of medicament, the medication delivery device comprising a position determining assembly for detecting absolute positions of a rotatably mounted member arranged within the device, the position determining assembly comprising a plurality of transmitter electrodes arranged on a first exterior surface part of the rotatably mounted member, a plurality of receiver electrodes arranged on a second exterior surface part of the rotatably mounted member. A number of transmitter electrodes form pairs of interconnected electrodes with a number of receiver electrodes. A reading assembly fixedly arranged relative to for example the housing of the medication delivery device is also provided. The reading assembly comprises a plurality of transmitters arranged to electrically couple to one or more receiver electrodes, the reading assembly further comprising a plurality of receivers arranged to electrically couple to one or more transmitter electrodes.


Also published as:
EP2013587JP2009534147RU0002431805CN101427107CA2649999AU2007242758
IN8716/DELNP/2008WO/2007/122253