Analyte measurement device and method of use
First Claim
1. A test strip for insertion into a measurement instrument having an alignment member therein for engagement with said test strip, said test strip comprising:
- (a) a longitudinal axis;
(b) a distal edge substantially transverse to said longitudinal axis and configured for insertion into said measurement instrument;
(c) an alignment notch formed in said distal edge for engagement with said alignment member and comprising opposing edges wherein at least a portion of said opposing edges is in substantially parallel relation to said longitudinal axis; and
(d) a non-circular aperture for receiving a volume of sample therein, the non-circular aperture having a major axial dimension that is coaxial with the longitudinal axis.
7 Assignments
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Accused Products
Abstract
Devices, systems, methods and kits are provided for use in determining the concentration of chemical and biochemical components in aqueous fluids. The subject devices include test strips which define a longitudinal axis and include a distal edge configured for insertion into a measurement instrument and having an alignment notch formed in the distal edge for engagement with an alignment member of the measurement instrument. The alignment notch has opposing edges wherein at least a portion of the opposing edges is in substantially parallel relation to the longitudinal axis. In using the subject devices, the devices are inserted into a measurement instrument having an alignment pin. When operatively engaged with the alignment pin, the notch serves to maintain the device in a substantially motionless position. The invention is useful in a variety of applications, particularly in the determination of blood glucose concentrations.
129 Citations
15 Claims
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1. A test strip for insertion into a measurement instrument having an alignment member therein for engagement with said test strip, said test strip comprising:
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(a) a longitudinal axis;
(b) a distal edge substantially transverse to said longitudinal axis and configured for insertion into said measurement instrument;
(c) an alignment notch formed in said distal edge for engagement with said alignment member and comprising opposing edges wherein at least a portion of said opposing edges is in substantially parallel relation to said longitudinal axis; and
(d) a non-circular aperture for receiving a volume of sample therein, the non-circular aperture having a major axial dimension that is coaxial with the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A test strip for use in conjunction with a measurement instrument having an alignment member therein and for measuring the concentration of at least-one analyte within a sample of biological fluid, said test strip comprising:
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(a) a support member defining a longitudinal axis and comprising;
(i) a distal edge substantially transverse to said longitudinal axis and configured for insertion into said measurement instrument;
(ii) an alignment notch formed in said distal edge for engagement with said alignment member and comprising opposing edges wherein at least a portion of said opposing edges is in substantially parallel relation to said longitudinal axis; and
(iii) a non-circular aperture therein for receiving said sample of biological fluid;
the non-circular aperture having a major axial dimension that is coaxial with the longitudinal axis and(b) a reagent pad fixed to said support member and covering said non-circular aperture, said reagent pad containing at least one reagent material selected for reacting with said at least one analyte. - View Dependent Claims (13, 14, 15)
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Specification