Blood sampler and component tester with guide member
First Claim
1. A device for testing the concentration of a blood component present in a blood sample, said device comprising:
- a member adapted for application against the skin of a patient, said member carrying a reagent that indicates the concentration of a blood component in a blood sample placed in contact therewith;
a lance for piercing the skin of a patient, said lance having a proximal end and a distal end;
a flexible dome-shaped member for translating said lance between a first position where the distal end of said lance is positioned on one side of said reagent carrying member and a second position where the distal end of said lance is positioned on another side of said reagent carrying member, said dome-shaped member being coupled to the proximal end of said lance;
a substrate comprising a layer of material that is positioned between said dome-shaped member and said reagent carrying member; and
a guide member for guiding said lance through said substrate and said reagent carrying member.
1 Assignment
0 Petitions
Accused Products
Abstract
A reagent strip (10) and lance (6) are integrated to form a blood sampler and component tester (2). The reagent strip (10) is adapted for application against the skin of a patient and carries a reagent that indicates the concentration of a blood component in a blood sample placed in contact therewith. The lance (6), which is used to pierce the skin of a patient, is coupled to the reagent strip (10) through a resilient dome (4) which translates the lance between an extended position (where the lance through a guide member (20) extends beyond the reagent strip to puncture the skin of a patient) and a retracted position.
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Citations
22 Claims
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1. A device for testing the concentration of a blood component present in a blood sample, said device comprising:
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a member adapted for application against the skin of a patient, said member carrying a reagent that indicates the concentration of a blood component in a blood sample placed in contact therewith; a lance for piercing the skin of a patient, said lance having a proximal end and a distal end; a flexible dome-shaped member for translating said lance between a first position where the distal end of said lance is positioned on one side of said reagent carrying member and a second position where the distal end of said lance is positioned on another side of said reagent carrying member, said dome-shaped member being coupled to the proximal end of said lance; a substrate comprising a layer of material that is positioned between said dome-shaped member and said reagent carrying member; and a guide member for guiding said lance through said substrate and said reagent carrying member. - View Dependent Claims (2, 3, 4, 5)
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6. A device for testing the concentration of a blood component present in a blood sample, said device comprising:
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a member adapted for application against the skin of a patient, said member carrying a reagent that indicates the concentration of a blood component in a blood sample placed in contact therewith; a lance for piercing the skin of a patient, said lance having a proximal end a distal end; and a flexible dome-shaped member for translating said lance between a first position where the distal end of said lance is positioned on one side of said reagent carrying member and a second position where the distal end of said lance is positioned on another side of said reagent carrying member said dome-shaped member being coupled to the proximal end of said lance; a substrate comprising a layer of material that is positioned between said dome-shaped member and said reagent carrying member; said substrate includes an opening, said opening being aligned with said lance such that said lance extends through said opening when said lance is in said second position; and a hub member for guiding said lance through said substrate, said hub member having a central aperture aligned with said opening in said substrate. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A diagnostic system including a plurality of disposable modules that are coupled in series, each module comprising:
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a member that carries a reagent which changes color according to sugar present in a substance placed in contact therewith; an actuator coupled to said reagent carrying member; a layer of material positioned between said actuator and said carrying member, said layer of material including an aperture; a lance that extends from said actuator in a direction toward said reagent carrying member; and means for guiding said lance through said aperture. - View Dependent Claims (20)
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21. A method for monitoring blood glucose level in a pate int comprising the steps of:
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providing a module with a carrier carrying a sugar sensitive reagent, a lance movingly mounted relative to the carrier, and a guide member; placing the module against the skin of a patient; guiding the lance in the guide member toward the carrier; reciprocating the lance through the carrier a distance sufficient to puncture the patient'"'"'s skin and draw a capillary blood sample; applying at least a portion of the blood sample to the reagent. - View Dependent Claims (22)
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Specification