Body fluid sampling device
First Claim
Patent Images
1. A sampling device for sampling blood or interstitial fluid, comprising:
- a manually grippable sleeve defining a longitudinal axis;
a carrier adapted to support a skin-lancing medium for producing an incision in skin;
a ring projecting from a longitudinal forward end of the sleeve and mounted for longitudinal movement relative to the sleeve, the ring including a front stimulator surface adapted to contact a skin surface; and
an elastically deformable force-transmitting element operably disposed between the sleeve and ring for transmitting a force from the sleeve to the ring in response to forward movement of the sleeve relative to the ring, to press the stimulator surface against the skin surface, the stimulator surface configured to depress a ring-shaped portion of skin and body tissue disposed in surrounding relationship to a skin incision, causing the incision to bulge and the sides of the incision to open, whereby body fluid is forced from the incision.
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Abstract
Body fluid is sampled from a skin incision by placing a ring against the skin and repeatedly applying an elastic pressing force to the ring, whereby a stimulator surface of the ring depresses a ring of skin and body tissue in surrounding relationship to the incision to force body fluid from the incision. The stimulator surface is inclined at an angle of 10 to 65 degrees; a width of the stimulator surface is from 5 mm to 20 mm, and an inner diameter of the stimulator surface is no less than 6.0 mm.
339 Citations
23 Claims
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1. A sampling device for sampling blood or interstitial fluid, comprising:
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a manually grippable sleeve defining a longitudinal axis; a carrier adapted to support a skin-lancing medium for producing an incision in skin; a ring projecting from a longitudinal forward end of the sleeve and mounted for longitudinal movement relative to the sleeve, the ring including a front stimulator surface adapted to contact a skin surface; and an elastically deformable force-transmitting element operably disposed between the sleeve and ring for transmitting a force from the sleeve to the ring in response to forward movement of the sleeve relative to the ring, to press the stimulator surface against the skin surface, the stimulator surface configured to depress a ring-shaped portion of skin and body tissue disposed in surrounding relationship to a skin incision, causing the incision to bulge and the sides of the incision to open, whereby body fluid is forced from the incision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A sampling device for sampling blood or interstitial fluid, comprising:
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a manually grippable sleeve defining a longitudinal axis; and a ring projecting from a longitudinal forward end of the sleeve and mounted for longitudinal movement relative to the sleeve, the ring including a front stimulator surface adapted to contact a skin surface, wherein the stimulator surface is inclined relative to a plane oriented perpendicular to the axis, the inclination being radially inwardly and longitudinally rearwardly, the inclination relative to the plane being from 10 to 65 degrees, a width of the stimulator surface being from about 5 mm to about 20 mm, an inner diameter of the stimulator surface being no smaller than about 6.0 mm. - View Dependent Claims (18)
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19. A sampling device for sampling blood or interstitial fluid, comprising:
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a manually grippable sleeve defining a longitudinal axis; a ring projecting from a longitudinal forward end of the sleeve and mounted for longitudinal movement relative to the sleeve, the ring including a front stimulator surface adapted to contact a skin surface; and an elastically deformable force-transmitting element operably disposed between the sleeve and ring for transmitting a force from the sleeve to the ring in response to forward movement of the sleeve relative to the ring, to press the stimulator surface against the skin surface, the stimulator surface configured to depress a ring-shaped portion of skin and body tissue disposed in surrounding relationship to a skin incision, causing the incision to bulge and the sides of the incision to open, whereby body fluid is forced from the incision. - View Dependent Claims (20, 21, 22, 23)
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Specification