Body fluid sampling device
First Claim
1. A testing device comprisinga sampling element having a fluid pathway for receiving a sample fluid, the fluid pathway having an access region and an end portion, the end portion being downstream from the access region, wherein at least a portion of said fluid pathway is open to the environment anda fluid receiving means being out of fluidic communication with said fluid pathway so that fluid in said pathway cannot contact the fluid receiving means initiallywherein the fluid receiving means comprises two or more test zones andwherein the two or more test zones are adapted to contact and fluidically communicate with the access region of the fluid pathway so that a fluid bolus entering the fluid pathway first and residing in the end portion of the fluid pathway is not contacted with the test zones.
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Accused Products
Abstract
Body fluid sampling device comprising a sampling element having a fluid pathway (11) for receiving body fluid, at least a portion of the fluid pathway is open to the environment and further comprising a fluid receiving means (40) being spaced from the fluid pathway so that fluid in the pathway will not contact the fluid receiving means initially. The fluid receiving means has two or more test zones (45) for performing analytical reactions. Fluid from the channel is contacted with the fluid receiving means either by bringing the fluid receiving means and the fluid into mechanical contact or by electrically transporting fluid from the channel onto the fluid receiving means.
62 Citations
33 Claims
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1. A testing device comprising
a sampling element having a fluid pathway for receiving a sample fluid, the fluid pathway having an access region and an end portion, the end portion being downstream from the access region, wherein at least a portion of said fluid pathway is open to the environment and a fluid receiving means being out of fluidic communication with said fluid pathway so that fluid in said pathway cannot contact the fluid receiving means initially wherein the fluid receiving means comprises two or more test zones and wherein the two or more test zones are adapted to contact and fluidically communicate with the access region of the fluid pathway so that a fluid bolus entering the fluid pathway first and residing in the end portion of the fluid pathway is not contacted with the test zones.
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19. System for body fluid analysis comprising
a sampling element with a fluid pathway for receiving body fluid and a skin piercing tip, the fluid pathway extending from the skin piercing tip to an end portion and including an access region upstream of the end portion, wherein at least a portion of said fluid pathway is open to the environment and a fluid receiving means being fluidically isolated from said fluid pathway during filling, there being no path for fluid to move between the fluid receiving means and the fluid pathway initially said fluid receiving means comprising two or more test zones adapted to contact and fluidically communicate with the access region of the fluid pathway and to avoid contact with the fluid first entering the fluid pathway.
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29. Analytical device comprising
a support structure having a channel therein which is accessible from the surrounding in at least an access region, said channel having a fluid introduction region as well as a discharge region located downstream the access region a fluid receiving means, the fluid receiving means being out of fluidic communication with the channel in a first status and the fluid receiving means being in fluidic communication with the access region of the channel in a second status to receive fluid, so that the fluid receiving means is not contacted with a fluid from the discharge region, wherein the fluid receiving means comprises two or more test zones.
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32. Analytical device comprising
a support structure having a channel for receiving fluid therein which is accessible from the surrounding in at least an access region, a fluid receiving means initially being fluidically isolated from the channel and comprising two or more test zones, there being no path for fluid to be initially transported from said channel to said fluid receiving means, and a source of electrical potential which when turned on applies an electrical potential between fluid in said access region and said fluid receiving means so that fluid from said access region is transported simultaneously onto said two or more test zones.
Specification