LANCING DEVICE WITH INDEPENDENT DRIVE CORE
First Claim
Patent Images
1. A lancing device comprising:
- an external housing comprising a lancet opening; and
an independent drive core mechanism positioned at least partially within the external housing, said independent drive core mechanism comprising;
a mechanism housing;
a drive plunger for receiving a lancet, said drive plunger translationally mounted for advancement and retraction within the mechanism housing;
a drive spring engaged between the mechanism housing and the drive plunger, for advancing the drive plunger toward the lancet opening; and
a charging housing for retracting the drive plunger and energizing the drive spring.
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Abstract
A medical lancing device including an independent drive core mechanism incorporating all or a substantial portion of the functional components of the lancing device, whereby the independent drive core mechanism can be incorporated into multiple different external housing configurations for more efficient design and manufacture. Axial adjustment of the position of the independent drive core mechanism within the housing provides lancing penetration depth control.
60 Citations
29 Claims
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1. A lancing device comprising:
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an external housing comprising a lancet opening; and an independent drive core mechanism positioned at least partially within the external housing, said independent drive core mechanism comprising; a mechanism housing; a drive plunger for receiving a lancet, said drive plunger translationally mounted for advancement and retraction within the mechanism housing; a drive spring engaged between the mechanism housing and the drive plunger, for advancing the drive plunger toward the lancet opening; and a charging housing for retracting the drive plunger and energizing the drive spring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An independent drive core mechanism for a lancing device, comprising:
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a mechanism housing having a bore extending axially therethough; a drive plunger comprising a receiver for releasably engaging a lancet, said drive plunger translationally mounted for advancement and retraction within the bore of the mechanism housing between an advanced position and a retracted position; a drive spring engaged between the mechanism housing and the drive plunger, for advancing the drive plunger toward the advanced position; a charging housing for retracting the drive plunger and energizing the drive spring; and at least one retention member for engagement with a cooperating portion of an external housing. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A drive mechanism for installation within a lancing device housing, the drive mechanism comprising:
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a mechanism housing; a drive plunger movable between an advanced position and a retracted position relative to the mechanism housing, wherein a constant stroke of travel is defined between the advanced position and the retracted position; and a drive spring engaged between the mechanism housing and the drive plunger to propel the drive plunger along the stroke of travel. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method of designing lancing devices, said method comprising:
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specifying an independent drive core mechanism comprising a mechanism housing, a lancet carrier translationally mounted within the mechanism housing, a drive spring for advancing the lancet carrier, and a return spring for retracting the lancet carrier; specifying the design of a first lancing device incorporating the independent drive core mechanism into a first external housing configuration; and specifying the design of a second lancing device incorporating the independent drive core mechanism into a second external housing configuration different from the first external housing configuration.
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29. A method of manufacturing lancing devices, said method comprising:
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providing an independent drive core mechanism comprising a mechanism housing, a lancet carrier translationally mounted within the mechanism housing, a drive spring for advancing the lancet carrier, and a return spring for retracting the lancet carrier; assembling a first lancing device by installation of the independent drive core mechanism into a first external housing configuration; and assembling a second lancing device by installation of the independent drive core mechanism into a second external housing configuration different from the first external housing configuration.
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Specification