Body fluid sampling device
First Claim
Patent Images
1. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
- a housing;
a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member;
a second skin contacting member configured to contact the skin surface;
wherein the housing extends along a longitudinal axis;
wherein the second skin contacting member is longitudinally movable relative to the housing; and
wherein the stimulator member has a first position relative the second skin contacting member in which the second skin contacting member extends longitudinally outward from the stimulator member and a second position in which the stimulator member extends longitudinally outward from the second skin contacting member.
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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.
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Citations
37 Claims
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1. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; a second skin contacting member configured to contact the skin surface; wherein the housing extends along a longitudinal axis; wherein the second skin contacting member is longitudinally movable relative to the housing; and wherein the stimulator member has a first position relative the second skin contacting member in which the second skin contacting member extends longitudinally outward from the stimulator member and a second position in which the stimulator member extends longitudinally outward from the second skin contacting member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; a second skin contacting member configured to contact the skin surface; a first force transmitting member positioned between the second skin contacting member and the housing; and a second force transmitting member positioned between the stimulator member and the second skin contacting member. - View Dependent Claims (11, 12, 13)
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14. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing extending along a longitudinal axis; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; a second skin contacting member configured to contact the skin, wherein the second skin contacting member is longitudinally movable relative to the housing; and means for releasing a lancet automatically upon pressing the device against the skin. - View Dependent Claims (15, 16, 17)
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18. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; wherein the stimulator member is movable relative to the housing; and an outer member surrounding the stimulator member and adapted to contact the skin surface, the outer member being movable relative to the housing. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; an outer member surrounding the stimulator member and adapted to contact the skin surface; wherein the housing extends along a longitudinal axis; wherein the outer member is longitudinally movable relative to the housing; and wherein the stimulator member has a first position relative the outer member in which the outer member extends longitudinally outward from the stimulator member and a second position in which the stimulator member extends longitudinally outward of the outer member. - View Dependent Claims (32, 36)
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33. A sampling device for sampling a bodily fluid through an incision in a skin surface, comprising:
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a housing; a stimulator member attached to the housing, the stimulator member being adapted to contact the skin surface around the incision and express a drop of the bodily fluid from the incision, the stimulator member defining an interior opening having a dimension of at least 6.0 mm to minimize smearing of the drop by contact between the drop and the stimulator member; an outer member surrounding the stimulator member and adapted to contact the skin surface; an adapter received in the housing; a carrier received in the adapter to carry a lancet; a carrier spring seated between the carrier and the stimulator member to retract the carrier after lancing; an outer spring seated between the outer member and the adapter to bias the outer member against the skin surface; a sleeve in which the housing is received; and a sleeve spring seated between the sleeve and the housing to retract the stimulator from the skin surface upon release of forward force on the sleeve to relieve pressure applied by the stimulator member against the skin surface and to allow fresh bodily fluid to flow toward the incision while the outer member remains in contact with the skin surface. - View Dependent Claims (34)
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35. A method of obtaining a body fluid sample, comprising:
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providing a device including a housing, a lancing device movable relative to the housing to lance skin and a stimulator member attached to the housing to contact the skin, the stimulator member defining an interior opening having a dimension of at least 6.0 mm; lancing the skin with the lancing device to create an opening in the skin; expressing fluid from the opening in the skin by pressing the stimulator member against the skin; wherein the stimulator member includes an outer member surrounding the stimulator member; and wherein said expressing includes contacting the skin with the outer member, moving the housing away from the skin to relieve pressure applied by the stimulator member against the skin to allow fresh bodily fluid to flow toward the opening in the skin, and maintaining contact between the outer member and the skin during said moving the housing away from the skin.
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37. A method of obtaining a bodily fluid sample, comprising:
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providing a device including a housing, a lancing device movable relative to the housing to lance skin, a stimulator member attached to the housing to contact the skin and an outer member surrounding the stimulator member; forming an incision in the skin with the lancing device; contacting the skin with the outer member; pressing the stimulator member against the skin to express bodily fluid from the incision; relieving pressure applied by the stimulator member against the skin to allow fresh bodily fluid to flow toward the opening in the skin, and maintaining contact between the outer member and the skin during said relieving pressure.
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Specification