BODY FLUID SAMPLING DEVICE
First Claim
1. Device for sampling body fluid comprising a fluid pathway (11) for receiving body fluid in a first state, wherein at least a portion of said fluid pathway (11) along its longitudinal extension is open to the environment and a fluid receiving means (40) being separately spaced apart from said fluid pathway (11) so that body fluid in said pathway (11) is out of fluidic contact with the fluid receiving means (40) in the first separated state, the device being adapted to undergo a physical change upon actuation so as to assume a second contacting state in which a fluid in said fluid pathway (11) contacts said fluid receiving means (40), wherein said device having a moveable portion (13) which can be moved and at least a portion of said fluid pathway (11) or fluid receiving means (40) is located on said moveable portion (13) to assume the contacting state.
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Accused Products
Abstract
Body fluid sampling device comprising a skin-piercing element (10) having a fluid pathway (11) for receiving body fluid, at least a portion of said fluid pathway is open to the environment and further comprising a fluid receiving means (40) being spaced from said fluid pathway so that fluid in said pathway will not contact the fluid receiving means initially. Said fluid receiving means may have a test zone (45) for performing an analytical reaction. Fluid from said channel is contacted with said 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.
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Citations
55 Claims
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1. Device for sampling body fluid comprising
a fluid pathway (11) for receiving body fluid in a first state, wherein at least a portion of said fluid pathway (11) along its longitudinal extension is open to the environment and a fluid receiving means (40) being separately spaced apart from said fluid pathway (11) so that body fluid in said pathway (11) is out of fluidic contact with the fluid receiving means (40) in the first separated state, the device being adapted to undergo a physical change upon actuation so as to assume a second contacting state in which a fluid in said fluid pathway (11) contacts said fluid receiving means (40), wherein said device having a moveable portion (13) which can be moved and at least a portion of said fluid pathway (11) or fluid receiving means (40) is located on said moveable portion (13) to assume the contacting state.
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2. Device for sampling body fluid comprising
a fluid pathway (11) for receiving body fluid in a first state, wherein at least a portion of said fluid pathway (11) along its longitudinal extension is open to the environment and a fluid receiving means (40) being separately spaced apart from said fluid pathway (11) by an air gap (92) so that body fluid in said pathway (11) is out of fluidic contact with the fluid receiving means (40) in the first separated state, the device being adapted to undergo a physical change upon actuation so as to assume a second contacting state in which a fluid in said fluid pathway (11) contacts said fluid receiving means (40), wherein body fluid received in said fluid pathway (11) is moved by electrical actuation onto the fluid receiving means (40).
- 20. Device for sampling body fluid comprising a skin piercing element (10) with a capillary channel as a laterally open fluid pathway (11) for receiving body fluid, wherein the channel has a sampling section (100) and at least one discharge section (102) located downstream the sampling section (100) and/or branching off upstream the sampling section (100) for receiving and discharging a fraction of the body fluid entering the capillary first, and wherein the sampling section (100) is a test zone (45) or is contacted with a test zone (45) for analysis of body fluid contained therein.
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26. Device for body fluid analysis comprising
a skin piercing element (10) with a fluid pathway (11) for receiving body fluid, wherein at least a portion of said fluid pathway (11) is open to the environment and a fluid receiving means (40) being spaced from said fluid pathway (11) so that fluid in said pathway is out of fluidic contact with the fluid receiving means (40), said fluid receiving means (40) comprising a test zone (45).
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43. Method for determining an analyte concentration in body fluid comprising the steps of:
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a) receiving body fluid in a fluid pathway (11) preferably of a skin piercing element (10), the fluid pathway (11) being spatially separated from a fluid receiving means (40) during filling, b) contacting the fluid pathway (11) with the fluid receiving means (40) so that body fluid from the fluid pathway (11) contacts the fluid receiving means (40) and reaches a test zone (45), c) receiving signals from said test zone (45) which are characteristic for an analyte concentration, d) processing said signals to determine the analyte concentration. - View Dependent Claims (44, 45, 46)
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47. Analytical device comprising
a support structure having a channel (11) therein which is accessible from the surrounding in at least an access region, said channel having a fluid introduction region (a) as well as a discharge region (d) located downstream the access region a fluid receiving means (40), the fluid receiving means (40) being spaced from the channel in a first state and the fluid receiving means (40) being in contact with fluid located in the access region in a second state to receive fluid, so that the fluid receiving means (40) is not contacted with a fluid from the discharge region.
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48. Method of sampling fluid comprising the steps of
introducing fluid into an introduction region of a support structure which has a channel therein, said fluid filling an access region of the support structure which is accessible from the surrounding and having a waste region (114) located downstream the access region contacting a fluid receiving means (40) with fluid located in the access region to receive fluid but not with a fluid portion in the discharge region.
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49. 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 (40) being spaced from the channel a source of electrical potential which when turned on applies an electrical potential between fluid in said access region and said fluid receiving means (40) so that fluid from said access region is transported onto said fluid receiving means (40).
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52. Method for transporting fluid from a support structure to a fluid receiving means (40), comprising the steps of
holding a support structure having a channel for receiving fluid therein which is accessible from the surrounding in at least an access region in a spaced relationship to a fluid receiving means (40), applying an electrical potential between fluid in said access region and said fluid receiving means (40) so that fluid from said access region is transported onto said fluid receiving means (40).
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53. System for body fluid analysis comprising
a skin-piercing element with a fluid pathway (11) for receiving body fluid, wherein at least a portion of said fluid pathway (11) is open to the environment and a fluid receiving means (40) being spaced from said fluid pathway (11) so that fluid in said pathway will not contact the fluid receiving means (40), said fluid receiving means (40) comprising a test zone (45), a transport means to transport the skin piercing element (10) into contact with the fluid receiving means (40).
Specification