Cassette assemblies for testing devices and methods
First Claim
Patent Images
1. A cassette assembly for use with an analyte measurement system, the cassette assembly comprising:
- a disk that can hold a plurality of test sensors and a hub about which the disk can rotate; and
a locking mechanism integrated with the hub and disk and selectively configurable between a first configuration that prevents relative rotational movement between the hub and disk and a second configuration that allows relative rotational movement between the hub and disk.
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Abstract
Cassette assemblies for use with analyte measurement systems are provided. A cassette assembly in accordance with the present invention includes a disk that can hold a plurality of test sensors and rotate relative to a hub. Such cassette assemblies include the capability to lock relative rotational movement between the disk and hub when the cassette assembly is outside of an analyte measurement system and allow such movement when installed in the system.
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Citations
25 Claims
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1. A cassette assembly for use with an analyte measurement system, the cassette assembly comprising:
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a disk that can hold a plurality of test sensors and a hub about which the disk can rotate; and
a locking mechanism integrated with the hub and disk and selectively configurable between a first configuration that prevents relative rotational movement between the hub and disk and a second configuration that allows relative rotational movement between the hub and disk. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cassette assembly for use with an analyte measurement system, the cassette assembly comprising:
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a disk that can hold a plurality of test sensors and a hub about which the disk can rotate;
a locking mechanism integrated with the hub and disk and selectively configurable between a first configuration that prevents relative rotational movement between the hub and disk and a second configuration that allows relative rotational movement between the hub and disk; and
an electronic chip incorporated with the hub. - View Dependent Claims (12, 13, 14)
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15. A method of maintaining the position of a test sensor of a cassette assembly relative to an analyte measurement system when the cassette assembly is removed from the analyte measurement system, the method comprising the steps of:
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providing an analyte measurement system having a cassette assembly installed therein, the cassette assembly comprising a disk and a hub, the disk comprising a test sensor in a storage position rotationally positioned relative to the hub;
removing the cassette assembly from the analyte measurement system; and
engaging a locking mechanism of the cassette assembly that locks the relative rotational position of the disk and hub. - View Dependent Claims (16, 17, 18)
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19. An analyte measurement system comprising:
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a cassette assembly having a disk rotatably mounted on a hub for providing a plurality of test sensors;
an arm pivotable about the hub, the arm having a pawl that can drivingly engage a tooth of the disk of the cassette assembly; and
a carriage having an engaging device that can engage with the arm during a first movement of the carriage to index the disk of the cassette assembly and thereafter disengage with the arm during a second movement of the carriage. - View Dependent Claims (20, 21, 22, 23)
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24. A method of indexing a cassette in an analyte measurement system, the method comprising the steps of:
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providing a rotatable cassette;
engaging a tooth of the cassette with a pawl, the pawl having an extension portion;
driving a carriage in a first direction toward an end of the extension portion of the pawl;
guiding the end of the extension portion of the pawl with a ramp of the carriage while the carriage is driven in the first direction;
driving the carriage in a second direction opposite the first direction to engage the end of the extension portion of the pawl with the carriage; and
driving the carriage in the second direction to index the cassette with the pawl. - View Dependent Claims (25)
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Specification