LANCING DEVICE AND METHOD OF SAMPLE COLLECTION
First Claim
Patent Images
1. A lancing device for use with a lancet to penetrate tissue and facilitate collection of a sample of a body fluid, said lancing device comprising:
- (a) a housing;
(b) a lancet carrier translationally mounted to said housing for carrying a lancet along a stroke traversing an extended position wherein a tissue penetrating portion of the lancet extends a distance outwardly of said housing, said lancet carrier comprising a limit member; and
(c) a thumbwheel rotationally mounted to said housing, and comprising an eccentric contact surface forming a selectively movable stop for contacting said limit member to limit the stroke of the lancet carrier in the direction of the extended position.
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Abstract
A lancing device and method for self-collecting a sample of body fluid by penetrating a body tissue at a sampling site. The invention includes a housing geometry configured for ease of use at different sampling sites on the body, even by persons having reduced dexterity and/or poor vision. Depth of penetration is selectively controlled by adjusting the stroke range of a spring-driven lancet carrier. A pressure applicator is included for stimulating flow of the body fluid. A transparent portion permits observation of the sampling site.
156 Citations
21 Claims
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1. A lancing device for use with a lancet to penetrate tissue and facilitate collection of a sample of a body fluid, said lancing device comprising:
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(a) a housing; (b) a lancet carrier translationally mounted to said housing for carrying a lancet along a stroke traversing an extended position wherein a tissue penetrating portion of the lancet extends a distance outwardly of said housing, said lancet carrier comprising a limit member; and (c) a thumbwheel rotationally mounted to said housing, and comprising an eccentric contact surface forming a selectively movable stop for contacting said limit member to limit the stroke of the lancet carrier in the direction of the extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lancing device for use with a lancet to penetrate tissue and facilitate collection of a sample of a body fluid, said lancing device comprising:
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(a) a housing; (b) a lancet carrier mounted to said housing for releasably engaging a lancet, said lancet carrier comprising; (i) a first gripping jaw; (ii) a second gripping jaw positioned in opposition to said first gripping jaw to define a lancet-receiving channel between said first and second gripping jaws, said first and second gripping jaws being movable between a closed position for gripping a lancet and an open position for receiving and releasing a lancet; (iii) biasing means for biasing said first and second gripping jaws toward said closed position; and (iv) a first release arm connected to said first gripping jaw and a second release arm connected to said second gripping jaw, whereby application of force to said first and second release arms moves said first and second gripping jaws toward said open position. - View Dependent Claims (10)
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11. A lancing device for use with a lancet to penetrate tissue and facilitate collection of a sample of a body fluid, said lancing device comprising:
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(a) a housing having a forward end and a transparent portion adjacent said forward end; (b) a lancet carrier mounted to said housing for carrying a lancet between a retracted position within said housing and an extended position wherein a tissue penetrating portion of the lancet extends a distance beyond the forward end of said housing; and (c) a pressure applicator adjacent said forward end of said housing. - View Dependent Claims (12, 13)
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- 14. A lancing device for use with a lancet to penetrate tissue and facilitate collection of a sample of a body fluid, said lancing device comprising a housing having an overall length, an overall width, and an overall thickness, said overall length being no more than about four times said overall width, and said overall width being at least about one and one-half times said overall thickness, wherein said housing is generally symmetric about perpendicular first and second planes of symmetry, and wherein a trigger button is arranged approximately midway along a front face of said housing.
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21-30. -30. (canceled)
Specification