Abstract: A system for operating at least first and second amperometric sensors includes a cartridge and a control device. The cartridge includes a first amperometric sensor and a second amperometric sensor. The first amperometric sensor is in fluid flow communication with a liquid sample inlet and includes a first electrode. The second amperometric sensor is in fluid flow communication with a liquid sample and includes a second electrode. The control device sets the first and second electrodes to about the same potential such that the first and second amperometric sensors can be operated simultaneously.

Abstract: A portable system for analysis of blood or other bodily fluids removable from a patient is disclosed. The system includes a temperature sensing device and a temperature control circuit. The temperature sensing device senses a temperature of a surface of a sensor substrate of a cartridge having an electrical heater device without direct contact with the cartridge or direct exposure to the heating device. The temperature sensing device also generates an electrical signal related to the sensed temperature. The temperature control circuit controls an electrical input to the heater device based on the sensed temperature and a designed control temperature.

Abstract: A system for operating at least first and second amperometric sensors includes a cartridge and a control device. The cartridge includes a first amperometric sensor and a second amperometric sensor. The first amperometric sensor is in fluid flow communication with a liquid sample inlet and includes a first electrode. The second amperometric sensor is in fluid flow communication with a liquid sample and includes a second electrode. The control device sets the first and second electrodes to about the same potential such that the first and second amperometric sensors can be operated simultaneously.

Abstract: A cartridge for analyzing a bodily fluid for use with an analytical device includes a base structure, a sensor arrangement, a pump arrangement, and a pump control arrangement configured to selectively operate the pump when the cartridge is operatively positioned in the analytical device. A system for analyzing a bodily fluid includes an analytical device with a cartridge-receiving receptacle and a cartridge operatively and removably mounted in the cartridge-receiving receptacle. The cartridge includes a sensor arrangement and a pump. The analytical device includes a pump control arrangement to selectively operate the pump. A method of analyzing bodily fluid includes inserting a cartridge into an analytical device, dispensing a sample into the cartridge, sensing the fluid with the cartridge, and allowing the analytical device to automatically pump a calibration fluid over sensors in the cartridge.

Abstract: A portable system for analysis of blood or other bodily fluids removable from a patient is disclosed. The system includes a temperature sensing device and a temperature control circuit. The temperature sensing device senses a temperature of a surface of a sensor substrate of a cartridge having an electrical heater device without direct contact with the cartridge or direct exposure to the heating device. The temperature sensing device also generates an electrical signal related to the sensed temperature. The temperature control circuit controls an electrical input to the heater device based on the sensed temperature and a designed control temperature.