PULSATING EXPRESSION CAP
First Claim
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1. A method of expressing a body fluid, comprising:
- positioning a sampling device having an expression member and a compression member over an incision in skin, the expression member contacting the skin surrounding the incision, the expression member including a plurality of expression lobes and the compression member including a plurality of compression lobes; and
rotating the compression member about the expression member wherein the plurality of compression lobes contact the plurality of expression lobes to deform the expression member, the deformed expression member squeezing and compressing the skin that surrounds the incision to express bodily fluid from the incision.
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Abstract
A body fluid sampling device includes an expression member placed around an incision in the skin of a user, a compression member to contact and traverse the expression member, and a housing configured to contact the skin near the incision. The expression member is configured to repeatedly move from a relaxed position over the incision to a contracted position over the incision. The expression member is at least partially resilient in order to repeatedly squeeze and/or compress the skin around the incision.
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Citations
12 Claims
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1. A method of expressing a body fluid, comprising:
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positioning a sampling device having an expression member and a compression member over an incision in skin, the expression member contacting the skin surrounding the incision, the expression member including a plurality of expression lobes and the compression member including a plurality of compression lobes; and rotating the compression member about the expression member wherein the plurality of compression lobes contact the plurality of expression lobes to deform the expression member, the deformed expression member squeezing and compressing the skin that surrounds the incision to express bodily fluid from the incision. - View Dependent Claims (2, 3, 4)
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5. A method of expressing a body fluid, comprising:
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positioning a sampling device having an expression member and a compression member over an incision in skin, the expression member contacting the skin surrounding the incision, the expression member includes a plurality of expression lobes and the compression member includes a plurality of compression lobes; and contacting and traversing the plurality of expression lobes with the plurality of compression lobes as the compression member is rotated about the expression member to deform the expression member, the deformed expression member pulsating the skin surrounding the incision to pump bodily fluid from the incision. - View Dependent Claims (6, 7)
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8. A sampling device, comprising:
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an incision forming member configured to form an incision in skin; an expression member defining an expression passageway through which the incision forming member extends, the expression member having a deformable end portion having a plurality of resilient fingers configured to contact and squeeze the skin that surrounds the incision, the expression member having a plurality of expression lobes; a compression member defining a compression passageway to receive the expression member, the compression member configured to rotate about the expression member, the compression member having a plurality of compression lobes configured to contact the plurality of expression lobes wherein the deformable end portion compresses from a relaxed position to a contracted position to squeeze the skin that surrounds the incision; and a housing defining a housing passageway to receive the compression member, the housing having a skin contacting portion to contact the skin that surrounds the incision to urge bodily fluid toward the incision. - View Dependent Claims (9, 10, 11, 12)
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Specification