The present invention relates to systems and methods for packaging of analyte sensors that may be used to detect an analyte concentration level in a bio-fluid sample taken from a patient.
The monitoring of an analyte concentration level in a bio-fluid may be an important part of health diagnostics. For example, an electrochemical analyte sensor may be employed for monitoring of a patient's blood glucose level as part of diabetes treatment and care. Furthermore, analyte sensors may be used for testing of other analytes such as total cholesterol, uric acid, lipids, triglycerides, high-density lipoprotein (HDL), low-density lipoprotein (LDL), etc.
In analyte monitoring, after a bio-fluid sample (e.g., blood) has been obtained from the patient, such as by the use of a lancet, the bio-fluid sample may then be transferred to a medium (e.g., an analyte sensor strip) for measurement of the sample's analyte concentration level. The analyte sensor test strip may be received in a testing meter and a display of a measured analyte level may be provided. In the case of blood glucose monitoring, the meter may sometimes be referred to as a “glucose meter.”
Accurate measurement of an analyte concentration level in a bio-fluid sample may be important. It therefore would be beneficial to provide systems and methods, which may aid in an accuracy of measurements made by analyte sensors.
In a first aspect, the present invention provides an analyte sensor container system including a container body including a plurality of compartments, each of the plurality of compartments containing at least one analyte sensor, and a sealing member individually sealing each of the plurality of compartments.
In another aspect, the present invention provides an analyte sensor container system including a container body including a plurality of compartments, each of the plurality of compartments containing at least one analyte sensor, and a plurality of lids operative with the container body and adapted to individually seal each of the plurality of compartments.
In a further aspect, the present invention provides an analyte sensor container system including an analyte sensor container including a container body and a plurality of compartments, each of the plurality of compartments containing at least one analyte sensor; at least one lid hinged to the container body, and at least one peelable sheet adhered to an open end of the plurality of compartments.
In yet another aspect, the present invention provides an analyte sensor container system including a container body including a plurality of connected sub-bodies, each of the plurality of connected sub-bodies including at least one compartment containing at least one analyte sensor, and at least one lid hinged to each of the plurality of connected sub-bodies to seal the at least one compartment.
In a method aspect, the present invention provides a method of storing analyte sensors including the steps of providing a container having a plurality of compartments; inserting at least one analyte sensor in each of the plurality of compartments; and individually sealing each of the plurality of compartments.
Other features and aspects of the present invention will become more fully apparent from the following detailed description, the appended claims and the accompanying drawings.
In the measurement of analyte concentration levels, an accuracy of an analyte sensor (e.g., an analyte sensor test strip) may be important. As such, the analyte sensor test strips may be provided in sealed foil packages or pouches in an attempt to protect them from environmental exposure, at least until opening. However, the packages may contain 10 or more analyte sensor strips, for example. Once the foil package is opened, the individual sensor strips contained therein may be exposed to the environment. The length of time a particular test strip is exposed may vary, depending on the testing level of the user, and other factors. However, in some instances, extended environmental exposure may affect certain properties of the analyte sensors. In particular, the analyte sensor reading may be affected by high or low humidity levels, or exposure to relatively large temperature variations, for example.
Moreover, once opened, the analyte sensors may be misplaced for a time or even mixed with other sensor test strips from other opened packages, possibly exacerbating a length of time and amount of environmental exposure. As such, the present invention may help with organization and packaging of the sensors, and may limit a length of time and amount of exposure of the analyte sensors to the environment.
Therefore, according to an aspect of the present invention, an analyte sensor container system is provided. The analyte sensor container system includes a container body having a plurality of compartments wherein each of the plurality of compartments contains at least one analyte sensor, and a sealing member is provided which individually seals each of the plurality of compartments. The sealing member may be a lid including a sealing lip, which individually seals each of the compartments, or individual peelable sheets adhered to an open end of each of the plurality of compartments. In this way, each of the compartments may be individually accessed to provide user access to one or a few sensors, and the remainder of the unused sensors may remain sealed in the other sealed compartment(s).
These and other embodiments are described below with reference to
A plurality of lids 116 may be attached to the container body 102, such by flexible hinges 118. Each of the lids 116 may be of approximately a same size and shape as the adjacent compartment 104 to which it engages and individually seals. A lip 120 (see
Accordingly, each separate pair of compartments 104 and lids 116 may cooperate and engage each other to form individually-resealable chambers 104, which may be substantially airtight. Received with each of the individually-resealable chambers 104 may be one or more analyte sensors (sometimes referred to as “test strips”). In cases where more than one analyte sensor is provided within an individually-resealable chamber 104, the analyte sensors may be suitable stacked or provided in a sensor package (or pouch) 126. Each package 126 may contain several analyte sensors (e.g., five or more, or ten or more, for example) sealed in a foil package or pouch member, for example. Optionally, the analyte sensors may be stacked with a length (longer) dimension aligned along the length (depth) dimension of the compartment 104. In use, once the user has opened the package 126 to remove a single sensor for testing, the user may reseal the chamber thereby limiting environmental exposure of the remaining unused (loose) sensors. As will be described more fully below, each individually-resealable chamber 104 may include a desiccant material for further limiting exposure of the loose sensors to the environment (e.g., humidity).
Each of the aforementioned system embodiments may include a desiccant or hydrophilic material. For example, the desiccant material may be provided under the lid in communication with each re-sealable compartment. Optionally, the desiccant material may be provided within the compartments themselves. For example, the desiccant material may be provided at a bottom of the compartment or provided as part of the wall of the compartment. The desiccant material may be a silica gel, clay, or molecular sieve material, for example. In some embodiments, the desiccant material may be a desiccant plastic molded into the walls of the compartment or lid, for example. Plastic desiccants are described in U.S. Pat. Nos. 5,911,937; 6,080,350; 6,124,006 and 6,130,263, for example. The desiccant may help in further limiting environment exposure to any loose sensors within the compartments.
The foregoing description discloses only exemplary embodiments of the invention. Modifications of the above disclosed analyte sensor container systems, which fall within the scope of the invention, will be readily apparent to those of ordinary skill in the art.
Accordingly, while the present invention has been disclosed in connection with exemplary embodiments thereof, it should be understood that other embodiments may fall within the spirit and scope of the invention, as defined by the following claims.
The present application claims priority to U.S. Provisional Patent Application No. 61/119,351 filed Dec. 2, 2008, and entitled “SEALED ANALYTE SENSOR CONTAINER SYSTEMS AND STORAGE METHODS” (Attorney Docket No. BHDD-004/L) which is hereby incorporated herein by reference in its entirety for all purposes.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US2009/064949 | 11/18/2009 | WO | 00 | 5/23/2011 |
Number | Date | Country | |
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61119351 | Dec 2008 | US |