Lancing device and lancet
First Claim
1. A lancing device comprising:
- a lancet carrier comprising a lancet carrier stop;
a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and
a depth control mechanism for adjusting the stroke distance of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising;
a dial that is rotational about a center of rotation, the dial further comprising a mounting pin eccentrically offset from the center of rotation; and
a stop bar having a first end mounted to the mounting pin of the dial and a second end comprising a stop surface for abutment with the lancet carrier stop to adjust the stroke distance of the lancet carrier and thereby adjust the depth of lancet penetration into the skin surface.
8 Assignments
0 Petitions
Accused Products
Abstract
A lancing device and lancet are provided with depth-control, lancet ejection, and/or guidance mechanisms. The depth-control mechanism includes a dial rotationally mounted at a distal end of the housing of the lancing device, the dial being coupled to a linkage whereby rotation of the dial imparts translational movement to a stop surface of the linkage to limit the stroke of the lancet and thereby control lancing penetration depth. The ejection mechanism includes an ejector that is advanced into contact with a transversely flared flange of the lancet to discharge the lancet from the lancing device. The guidance mechanism includes an inner guidance housing for restricting out-of-axis movement of a lancet carrier.
113 Citations
24 Claims
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1. A lancing device comprising:
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a lancet carrier comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism for adjusting the stroke distance of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising; a dial that is rotational about a center of rotation, the dial further comprising a mounting pin eccentrically offset from the center of rotation; and a stop bar having a first end mounted to the mounting pin of the dial and a second end comprising a stop surface for abutment with the lancet carrier stop to adjust the stroke distance of the lancet carrier and thereby adjust the depth of lancet penetration into the skin surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lancing device comprising:
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a lancet carrier axially movable within a housing, the lancet carrier further comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism for adjusting the stroke distance of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising; a dial rotationally mounted to the housing defining an axis of rotation, the dial comprising a centrally positioned arcuate flange and a pin eccentrically offset therefrom; and an arm having a first end mounted to the pin of the dial and a second end comprising a stop surface for abutment with the lancet carrier stop to adjust the stroke distance of the lancet carrier and thereby adjust the depth of lancet penetration into the skin surface. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A lancing device comprising:
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a lancet carrier axially movable within a housing, the lancet carrier further comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism comprising; a dial rotationally mounted to the housing defining an axis of rotation, the dial comprising a centrally positioned arcuate flange and a pin eccentrically offset therefrom; and an arm having a first end mounted to the pin of the dial and a second end comprising a stop surface for abutment with the lancet carrier stop to adjust the stroke distance of the lancet carrier, wherein the arm comprises guidance features which engage the housing, and wherein the guidance features permit the stop surface to translate in an axis parallel to the path of travel of the lancet along its lancing stroke but to rotate freely around an axis parallel to the axis of rotation of the dial.
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17. A lancing device comprising:
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a housing defining a proximal end having a lancet opening formed therein, a distal end opposite the proximal end, and a lengthwise axis extending between the proximal and distal ends, and wherein a medial plane divides the housing into an upper housing half and a lower housing half; a lancet carrier axially movable within the housing; a drive spring for propelling the lancet carrier along a lancing stroke; and a depth control mechanism for adjusting the lancing stroke of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising a dial mounted between the upper housing half and the lower housing half, and rotational about an axis of rotation generally perpendicular to the medial plane, and an arm having a first end eccentrically coupled to the dial and a second end comprising a stop surface for abutting the lancet carrier to limit movement of the lancet carrier and thereby adjust the depth of lancet penetration. - View Dependent Claims (18, 19, 20)
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21. A lancing device comprising:
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a lancet carrier comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism comprising; a dial that is rotational about a center of rotation, the dial further comprising a mounting pin eccentrically offset from the center of rotation; and a stop bar having a first end mounted to the mounting pin of the dial and a second end comprising a stop surface for contact with the lancet carrier stop to adjust the stroke distance of the lancet carrier, wherein the stop bar has a generally T-shaped profile with a lengthwise axis and a transverse rib forming the stop surface and extending generally perpendicular to the lengthwise axis.
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22. A lancing device comprising:
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a lancet carrier comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism comprising; a dial that is rotational about a center of rotation, the dial further comprising a mounting pin eccentrically offset from the center of rotation; and a stop bar having a first end mounted to the mounting pin of the dial and a second end comprising a stop surface for contact with the lancet carrier stop to adjust the stroke distance of the lancet carrier; wherein the lancet carrier comprises a distal extension arm having the lancet carrier stop extending therefrom, and wherein the lancet carrier stop comprises a sleeve retained on the distal extension arm.
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23. A lancing device comprising:
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a housing defining a proximal end having a lancet opening formed therein, a distal end opposite the proximal end, and a lengthwise axis extending between the proximal and distal ends, and wherein a medial plane divides the housing into an upper housing half and a lower housing half; a lancet carrier axially movable within the housing; a drive spring for propelling the lancet carrier along a lancing stroke; and a depth control mechanism comprising a dial mounted between the upper housing half and the lower housing half, and rotational about an axis of rotation generally perpendicular to the medial plane, and an arm having a first end eccentrically coupled to the dial and a second end comprising a stop surface for contacting the lancet carrier to limit movement of the lancet carrier, wherein the arm comprises a lengthwise axis and the stop surface is generally transverse to the lengthwise axis.
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24. A lancing device comprising:
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a lancet carrier axially movable within a housing, the lancet carrier comprising an extension arm with a lancet carrier stop extending therefrom; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism for adjusting the stroke distance of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising; a rotationally mounted dial having a mounting pin eccentrically offset from an axis of rotation of the dial; and an arm having a first end coupled to the mounting pin of the dial and a second end comprising a stop surface for contact with the lancet carrier stop to limit the stroke distance of the lancet carrier and thereby adjust the depth of lancet penetration, wherein the arm comprises a lengthwise axis and the stop surface extends generally transverse to the lengthwise axis.
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Specification