Body fluid sampling device
First Claim
Patent Images
1. Body fluid sampling device, comprising:
- a skin-piercing element having a sharpened end for piercing tissue and a collection zone for receiving body fluid from the tissue, the collection zone being exposed to the outside environment at the sharpened end of the skin-piercing element;
a fluid receiving element connected to the skin-piercing element and comprising a test zone;
the collection zone of the skin-piercing element being adapted to retain a sample of body fluid at the sharpened end and in isolation from the fluid receiving element when piercing the tissue; and
the fluid receiving element being configured to contact the collection zone at the sharpened end of the skin-piercing element, when contacting the fluid receiving element, the collection zone transfers the body fluid directly to the fluid receiving element.
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Abstract
Body fluid sampling device comprising a skin-piercing element having a collection zone for receiving body fluid, and the device further comprising a fluid receiving means remote spaced apart from the collection zone so that body fluid in the collection zone will not contact the fluid receiving means initially. The collection zone takes up a very small volume of body fluid of about 10 to 500 nl in a very short time period of less than 0.5 seconds. The fluid receiving means may have a test zone for performing an analytical reaction. Fluid sample from the collection zone is automatically or manually transported to the fluid receiving means to contact the fluid with the test zone.
93 Citations
45 Claims
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1. Body fluid sampling device, comprising:
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a skin-piercing element having a sharpened end for piercing tissue and a collection zone for receiving body fluid from the tissue, the collection zone being exposed to the outside environment at the sharpened end of the skin-piercing element; a fluid receiving element connected to the skin-piercing element and comprising a test zone; the collection zone of the skin-piercing element being adapted to retain a sample of body fluid at the sharpened end and in isolation from the fluid receiving element when piercing the tissue; and the fluid receiving element being configured to contact the collection zone at the sharpened end of the skin-piercing element, when contacting the fluid receiving element, the collection zone transfers the body fluid directly to the fluid receiving element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. Body fluid sampling device, comprising:
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a skin-piercing element having a sharpened end for piercing tissue and a collection zone for receiving body fluid from the tissue, the collection zone being exposed to the outside environment at the sharpened end of the skin-piercing element; a fluid receiving element connected to the skin-piercing element and comprising a test zone; the skin-piercing element lacking a fluid path for directly transporting the body fluid from the collection zone to the fluid receiving element when piercing the tissue, the collection zone being isolated at the sharpened end and configured to retain a sample of the body fluid at a discrete location at the sharpened end, the discrete location terminating before fluidically connecting with the fluid receiving element when the skin-piercing element is piercing the tissue; the skin-piercing element and the fluid receiving element extending in a parallel manner with respect to one another; and the fluid receiving element being configured to contact the collection zone of the skin-piercing member in a perpendicular manner. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification