Systems, methods, and apparatuses for reducing error between calculated analyte levels and impractical analyte measurements using practical analyte measurements as reference measurements for calibration. Reducing the error may include converting a practical reference analyte measurement into an estimated impractical analyte level, updating a conversion function using the estimated impractical analyte level, and using the updated conversion function to calculate an analyte level. In some aspects, the practical reference analyte measurement may be a capillary blood analyte measurement, and the estimated impractical analyte level may be an estimated venous blood analyte level. In some aspects, the updated conversion function may minimize the error between analyte levels calculated using the updated conversion function and estimated venous blood analyte levels.

The biological test kit is a device for drawing and, optionally, testing biological samples. The biological test kit is an array of lancets set in wells in a rigid base. Each lancet well is covered by a protective cover which when deformed permits the lancet to puncture a user or other patient. In one embodiment the biological test kit employs distinct covers for each lancet and in another the covers are formed from sheet material formed into blisters which cover the lancet.

A microfluidic device for non-invasively and passively accessing interstitial fluid from a patient includes a substrate containing multiple vertical micro channels therethrough, wherein at a first end of each of the multiple vertical micro channels a microheater is formed for controllably ablating a portion of dry dead skin cells to access the interstitial fluid; and wherein at a second end of each of the multiple vertical micro channels is a horizontal micro channel for receiving accessed interstitial fluid from a vertical micro channel and guiding the accessed interstitial fluid to a common collection port.

A system is provided for monitoring analyte in a host, including a continuous analyte sensor that produces a data stream indicative of a host's analyte concentration and a device that receives and records data from the data stream from the continuous analyte sensor. In one embodiment, the device includes a single point analyte monitor, from which it obtains an analyte value, and is configured to display only single point analyte measurement values, and not any analyte measurement values associated with data received from the continuous analyte sensor. Instead, data received from the continuous analyte sensor is used to provide alarms to the user when the analyte concentration and/or the rate of change of analyte concentration, as measured by the continuous analyte sensor, is above or below a predetermined range. Data received from the continuous analyte sensor may also be used to prompt the diabetic or caregiver to take certain actions, such as to perform another single point blood glucose measurement. In another embodiment, the device provides for toggling between two modes, with one mode that allows for display of glucose concentration values associated with the continuous glucose sensor and a second mode that prevents the display of glucose concentration values associated with the continuous glucose sensor.

Devices and methods for withdrawing bodily fluid from a patient are disclosed herein. A handheld device configured in accordance with the present technology can include a housing having an opening, a skin-piercing assembly located at least partially within the housing, and an actuator movable relative to the housing along a deployment direction. The skin-piercing assembly can include a skin-piercing feature and a biasing member. The biasing member can be coupled to the skin-piercing feature to bias the skin-piercing feature along the deployment direction. Movement of the actuator along the deployment direction to a predetermined position can increase a load on the biasing member to at least a partially loaded state. Movement of the actuator along the deployment direction beyond the predetermined position can release the load on the biasing member so that the biasing member actively drives the skin-piercing feature along the deployment direction.

Methods and kits for collecting and verifying a specimen and/or biological information from a person at a first location to be provided to a second location are provided with documentation of chain of custody in order to verify that the person from whom the specimens and data were obtained is the intended person. Methods include internet and/or video communication between the person and a human or software-based verification assistant, confirming identification of the person to the verification assistant through the video communication, obtaining one or more specimens from the person or one or more types of biological information of the person, wherein the obtaining may be recorded through the internet/video communication, and the use and recording of coded tamper-evident packaging to ensure chain of custody before, during and after the internet/video communication.

Methods and kits for collecting and verifying a specimen and/or biological information from a person at a first location to be provided to a second location are provided with documentation of chain of custody in order to verify that the person from whom the specimens and data were obtained is the intended person. Methods include internet and/or video communication between the person and a human or software-based verification assistant, confirming identification of the person to the verification assistant through the video communication, obtaining one or more specimens from the person or one or more types of biological information of the person, wherein the obtaining may be recorded through the internet/video communication, and the use and recording of coded tamper-evident packaging to ensure chain of custody before, during and after the internet/video communication.

A blood glucose detection device and system are portable blood glucose detection devices for patients. The blood glucose detection device includes a plurality of lancing units, which collect patient blood and generate current. The test unit can detect the current and transmit the current intensity data to the external device, thus making the glucose detection device portable. Besides, there is no need to change test strips every time for a blood glucose test as the current intensity data can be transmitted externally for management, which improves the patient's experience and makes it convenient for patients to perform blood glucose tests when they go out.

A blood glucose detection device and system are portable blood glucose detection devices for patients. The blood glucose detection device includes a plurality of lancing units, which collect patient blood and generate current. The test unit can detect the current and transmit the current intensity data to the external device, thus making the glucose detection device portable. Besides, there is no need to change test strips every time for a blood glucose test as the current intensity data can be transmitted externally for management, which improves the patient's experience and makes it convenient for patients to perform blood glucose tests when they go out.

Embodiments of the present invention provide magnetic lancet devices and methods for driving a lancet. For example, a magnetic lancet device may include a driving mechanism having a plurality of magnets and a lancet coupled to the driving mechanism. A magnetic interaction between the plurality of magnets is configured to drive the lancet from an engaged position to a penetrating position.