Body fluid sampling device
First Claim
1. A device for sampling body fluid, comprising:
- a fluid pathway for receiving body fluid in a first state, wherein said fluid pathway along its longitudinal extension is open to the environment,a skin piercing element having said fluid pathway,a fluid receiving means being separately spaced apart from said fluid pathway so that body fluid in said pathway is out of fluidic contact with the fluid receiving means in the first separated state,the device being adapted to undergo a physical change upon actuation after body fluid is received in said fluid pathway so as to assume a second contacting state in which body fluid in said fluid pathway contacts said fluid receiving means, andwherein said device having a moveable portion which can be moved and at least a portion of said fluid pathway or fluid receiving means is located on said moveable portion to assume the contacting state.
3 Assignments
0 Petitions
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 the fluid pathway is open to the environment and further comprising a fluid receiving element (40) being spaced from the fluid pathway so that fluid in the pathway will not contact the fluid receiving element initially. The fluid receiving element may have a test zone (45) for performing an analytical reaction. Fluid from the channel is contacted with the fluid receiving element either by bringing the fluid receiving element and the fluid into mechanical contact or by electrically transporting fluid from the channel onto the fluid receiving element.
58 Citations
54 Claims
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1. A device for sampling body fluid, comprising:
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a fluid pathway for receiving body fluid in a first state, wherein said fluid pathway along its longitudinal extension is open to the environment, a skin piercing element having said fluid pathway, a fluid receiving means being separately spaced apart from said fluid pathway so that body fluid in said pathway is out of fluidic contact with the fluid receiving means in the first separated state, the device being adapted to undergo a physical change upon actuation after body fluid is received in said fluid pathway so as to assume a second contacting state in which body fluid in said fluid pathway contacts said fluid receiving means, and wherein said device having a moveable portion which can be moved and at least a portion of said fluid pathway or fluid receiving means is located on said moveable portion to assume the contacting state. - View Dependent Claims (3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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2. A device for sampling body fluid, comprising:
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a fluid pathway for receiving body fluid in a first state, wherein said fluid pathway along its longitudinal extension is open to the environment and a fluid receiving means being separately spaced apart from said fluid pathway by an air gap so that body fluid in said pathway is out of fluidic contact with the fluid receiving means in the first separated state, and the device being adapted to undergo a physical change upon actuation after body fluid is received in said fluid pathway so as to assume a second contacting state in which body fluid in said fluid pathway contacts said fluid receiving means. - View Dependent Claims (9)
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19. A device for body fluid analysis, comprising:
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a skin piercing element with a fluid pathway for receiving body fluid, wherein said fluid pathway along its longitudinal extension is open to the environment; and a fluid receiving means being physically spaced from said fluid pathway so that fluid in said pathway is out of fluidic contact with the fluid receiving means in a first condition, and said fluid receiving means physically contacting said fluid pathway after body fluid is received in said fluid pathway so that fluid in said fluid pathway is in fluidic contact with the fluid receiving means in a second condition, said fluid receiving means comprising a test zone. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A system for body fluid analysis, comprising:
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a skin-piercing element with a fluid pathway for receiving body fluid, wherein said fluid pathway along its longitudinal extension is open to the environment, a fluid receiving means being spaced from said fluid pathway so that fluid in said pathway will not contact the fluid receiving means, said fluid receiving means comprising a test zone, and a transport means to transport the skin piercing element into contact with the fluid receiving means after body fluid is received in the fluid pathway. - View Dependent Claims (37, 38)
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39. A device for sampling body fluid, comprising:
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a skin piercing element with a capillary channel for receiving body fluid, wherein the channel is open along its longitudinal extension, and wherein the channel has a sampling section and at least one discharge section located downstream the sampling section and/or branching off upstream the sampling section for receiving and discharging a fraction of the body fluid entering the capillary first, and wherein the sampling section is a test zone or is contacted with a test zone after body fluid is received in the capillary channel for analysis of body fluid contained therein. - View Dependent Claims (40, 41, 42, 43, 44)
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45. A 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 preferably of a skin piercing element, the fluid pathway being physically separated from a fluid receiving means during filling, b) physically contacting the fluid pathway with the fluid receiving means after body fluid is received in the fluid pathway so that body fluid from the fluid pathway contacts the fluid receiving means and reaches a test zone, c) receiving signals from said test zone which are characteristic for an analyte concentration, and d) processing said signals to determine the analyte concentration. - View Dependent Claims (46, 47, 48, 49, 50)
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51. A device for body fluid analysis, comprising:
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a skin piercing element including a holder frame, and an elongated portion including a protruding portion having a front end region with a sharpened tip protruding from the holder frame, a moveable portion located in the holder frame, wherein the moveable portion is shaped in a form of a tongue to promote bending of the moveable portion, and a fluid pathway being open to the environment along the elongated portion from the front end region of the protruding portion to the moveable portion; a fluid receiving element spaced away from the fluid pathway so that a body fluid sample within the fluid pathway does not contact the fluid receiving element, the fluid receiving element including a holding structure spacing the fluid receiving element from the fluid pathway of the skin piercing element, and a test zone containing reagent chemistry for analyzing the body fluid sample; and the moveable portion being bendable relative to the holder frame from a first state where the fluid pathway does not contact the fluid receiving element to a second state where the fluid pathway contacts the fluid receiving element to wet the test zone with the body fluid sample. - View Dependent Claims (52)
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53. A method, comprising:
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piercing skin with a sharpened end of a skin piercing element, wherein the skin piercing element includes a holder frame, and an elongated portion, wherein the elongated portion includes a protruding portion having a front end region with the sharpened tip protruding from the holder frame, a moveable portion located in the holder frame, and a fluid pathway that is open to the environment along the elongated portion from the front end region of the protruding portion to the moveable portion; filling the fluid pathway with body fluid from the skin while a fluid receiving element is spaced away from the fluid pathway so that the body fluid within the fluid pathway does not contact the fluid receiving element, wherein the fluid receiving element includes a test zone containing reagent chemistry; and after said filling the fluid pathway, bending the moveable portion relative to the holder frame to a position where the fluid pathway contacts the fluid receiving element to wet the test zone with the body fluid. - View Dependent Claims (54)
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Specification