Precision depth control lancing tip
First Claim
1. A body fluid sampling device, comprising:
- a lancet to form an incision in skin;
a first member configured to contact the skin during lancing, the first member defining a lancet opening through which the lancet extends during lancing, the lancet opening being sized to generally flatten the skin around the lancet during lancing; and
a second member coupled to the first member, the second member defining an expression opening that is sized larger than the lancet opening to express fluid from the incision.
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Accused Products
Abstract
A bodily fluid sampling device is operable to lance with a precise depth and express fluid from both fingertip and alternate sites. In one form, the device is operable to adjust the penetration depth of the lancet into the skin. The bodily fluid sampling device includes a lancet adapted to form an incision in skin. A skin contacting member has an orifice through which the lancet extends when lancing the skin. The orifice has a first opening size that is sized to flatten the skin around the lancet during lancing. The orifice has a second opening size that is larger than the first opening size after the incision is formed to express fluid from the incision.
690 Citations
34 Claims
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1. A body fluid sampling device, comprising:
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a lancet to form an incision in skin;
a first member configured to contact the skin during lancing, the first member defining a lancet opening through which the lancet extends during lancing, the lancet opening being sized to generally flatten the skin around the lancet during lancing; and
a second member coupled to the first member, the second member defining an expression opening that is sized larger than the lancet opening to express fluid from the incision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A body fluid sampling device, comprising:
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a housing;
a lancet disposed in the housing to lance skin; and
a member coupled to the housing, the member defining a lancet opening sized to flatten the skin around the lancet during lancing, the member defining an expression opening that is sized larger than the lancet opening to express fluid from alternate sites. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A body fluid sampling device, comprising:
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means for rupturing skin; and
means for providing a first opening size to flatten the skin during rupturing; and
means for providing a second opening size larger than the first opening size to express fluid. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A method, comprising:
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lancing an incision in skin with a lancet of a sampling device;
controlling penetration depth of the lancet by flattening skin around the lancet with a lancet opening of the device during said lancing; and
expressing fluid from the incision by pressing an expression opening of the sampling device around the incision, wherein the expression opening is larger than the lancet opening. - View Dependent Claims (27, 28, 29)
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30. A method, comprising:
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providing a sampling device that includes a lancet and a lancet opening that is sized to generally flatten skin around the lancet during lancing, wherein the sampling device has an expression opening that is sized larger than the lancet opening to express fluid;
adjusting the sampling device so that the expression opening is able to express the fluid;
forming an incision in the skin with the lancet; and
expressing the fluid from the incision by pressing the expression opening around the incision. - View Dependent Claims (31, 32, 33, 34)
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Specification