Apparatus and methods for reducing electrical shock hazard from biosensor meters
First Claim
1. A biosensor meter for determining an analyte concentration in a fluid, the biosensor meter comprising:
- a USB port comprising a first data signal port terminal; and
a detection circuit for detecting a connection of the biosensor meter to a computer device, the detection circuit comprising a first input terminal coupled to the first data signal port terminal, and comprising an output terminal, wherein;
the detection circuit is adapted to provide at the output terminal a first output signal when a current sensed at the first input terminal is greater than or equal to a first predetermined amount, and a second output signal when the current sensed at the first input terminal is less than the first predetermined amount,the biosensor meter is adapted to disable determination of the analyte concentration in the fluid when the detection circuit provides the first output signal at the output terminal, andthe biosensor meter disables determination of the analyte concentration in the fluid by providing a warning to not apply a fluid sample to the biosensor meter.
2 Assignments
0 Petitions
Accused Products
Abstract
A biosensor meter (10a) is provided for determining an analyte concentration in a fluid, such as glucose in blood. The biosensor meter includes a USB port (14a) having a first data signal port terminal (32d′), and a detection circuit (50a) including a first input terminal and an output terminal. The first input terminal of the detection circuit (50a) is coupled to the first data signal port terminal (32d′). The detection circuit (50a) provides at the output terminal a first output signal when a current sensed at the first input terminal is greater than or equal to a first predetermined amount, and a second output signal when the current sensed at the first input terminal is less than the first predetermined amount. The detection circuit is configured to detect whether the USB port (14a) of the biosensor meter (10a) is connected to the USB port (14b) of another electronic device, such as a computer (12), and to prompt the meter'"'"'s user for not carrying out a measurement in order to reduce the risk of electrical shock.
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Citations
32 Claims
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1. A biosensor meter for determining an analyte concentration in a fluid, the biosensor meter comprising:
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a USB port comprising a first data signal port terminal; and a detection circuit for detecting a connection of the biosensor meter to a computer device, the detection circuit comprising a first input terminal coupled to the first data signal port terminal, and comprising an output terminal, wherein; the detection circuit is adapted to provide at the output terminal a first output signal when a current sensed at the first input terminal is greater than or equal to a first predetermined amount, and a second output signal when the current sensed at the first input terminal is less than the first predetermined amount, the biosensor meter is adapted to disable determination of the analyte concentration in the fluid when the detection circuit provides the first output signal at the output terminal, and the biosensor meter disables determination of the analyte concentration in the fluid by providing a warning to not apply a fluid sample to the biosensor meter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for use with a biosensor meter used to determine an analyte concentration in a fluid, the biosensor meter comprising a USB port comprising a first data signal port terminal, the method comprising:
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providing a detection circuit for detecting a connection of the biosensor meter to a computer device, the detection circuit comprising a first input terminal coupled to the first data signal port terminal, and comprising an output terminal; providing a first output signal at the output terminal when a current sensed at the first input terminal is greater than or equal to a first predetermined amount; providing a second output signal at the output terminal when the current sensed at the first input terminal is less than the first predetermined amount; and disabling determination of the analyte concentration in the fluid when the current sensed at the first input terminal is greater than or equal to a first predetermined amount, wherein the disabling comprises providing a warning to not apply a fluid sample to the biosensor meter. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A biosensor meter comprising:
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a fluid sample testing circuit; a computer device connection port; and a detection circuit coupled to the computer device connection port, wherein; the biosensor meter is operative to disable the fluid sample testing circuit in response to the detection circuit detecting a connection between the computer device connection port and a computer device, and the biosensor meter is further operative to provide a warning to not apply a fluid sample to the biosensor meter in response to the detection circuit detecting a connection between the computer device connection port and the computer device.
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18. A biosensor meter for determining an analyte concentration in a fluid, the biosensor meter comprising:
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a microcontroller; a connection port coupled to the microcontroller; and a detection circuit coupled to the connection port and to the microcontroller, the detection circuit operative to detect a connection at the connection port to a computer device that is OFF;
wherein;the microcontroller is operative to disable determination of the analyte concentration in the fluid in response to the detection circuit detecting the connection at the connection port to the computer device that is OFF. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of operating a biosensor meter comprising:
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turning on the biosensor meter; determining whether a power interrupt has occurred; determining whether an output of a detection circuit in the biosensor meter is HIGH in response to not determining that a power interrupt has occurred; disabling fluid sample measurement in the biosensor meter in response to determining that either the power interrupt has occurred or that the output of the detection circuit is HIGH; and enabling the fluid sample measurement in response to determining that no power interrupt has occurred and the output of the detection circuit is not HIGH. - View Dependent Claims (29, 30, 31, 32)
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Specification