US 2006/0130838 A1Published application

Data logger for monitoring asthmatic conditions

OwnerYong Lee, Hugo Van Bever +1inventors

InventorsYong Lee, Hugo Van Bever, Victor Samper

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Abstract

An apparatus for monitoring asthmatic conditions takes the form of a data logger for attaching to a spacer. The spacer has a chamber with an input end and an output end and defining an interior space wherein the input end receives a medication discharge from a discharge orifice of a canister of medication into the interior space and wherein the medication can be withdrawn from the interior space by inhalation by a patient from the output end. The data logger is mounted to the spacer and may include such sensors as pressure transducers and accelerometers. The sensors may be arranged to measure various aspects of the environment of the spacer, such as a pressure change induced by the inhalation of the medicine from the chamber. A memory may also be included for recording the measurements for later transfer to another device for processing and analysis.

Claims12

Dependent claims

An apparatus for monitoring asthmatic conditions, wherein said apparatus is arranged for mounting to a spacer, said spacer having an input end, an output end and a mask mounted at said output end, and wherein an application of said mask to a face of a patient creates a cavity, said apparatus comprising:

an enclosure;
a conduit for pneumatically coupling said enclosure to said cavity such that pressure changes in said cavity result in pressure changes in said enclosure;
a pressure transducer mounted in fluid communication with said cavity for:
sensing said pressure changes in said cavity;
and
producing an electrical output signal representative of said pressure changes;
an analog to digital converter for converting said electrical output signal representative of said pressure changes to a digital value representative of said pressure changes;
a memory;
and
a processor communicatively connected to said analog to digital converter and said memory for:
receiving said digital value representative of said pressure changes;
and
transmitting, to said memory, said digital value representative of said pressure changes.

10 more elements

Dependencies are inferred from the claim text.