Methods, systems, and apparatus, including biological fluid monitoring systems comprising a microneedle layer; at least one electromagnet assembly; and at least two liquid chambers coupled via a microfluidic layer, wherein the microneedle layer comprises a plurality of microneedles configured to extract interstitial fluid (ISF) from a patient in to one of the at least two liquid chambers, and wherein the at least one electromagnet assembly is configured to a move a test sample of the extracted ISF through the at least two liquid chambers to conduct a test cycle.

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.

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.

A medical device is configured to be attached to a part of a circulation circuit of an extracorporeal circulation device and to be inserted with an insertion member for performing a test related to blood clotting, and includes a storage portion configured to store a blood, and a main body portion configured to drop the blood stored in the storage portion onto the insertion member. The stored blood is used as samples for testing and monitoring of blood conditions (e.g., clotting) during extracorporeal circulation.

A syringe-based device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive and isolate a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the sealing member and the housing.

A syringe-based device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive and isolate a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the sealing member and the housing.

A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.

The present disclosure relates to a continuous glucose monitoring apparatus, and provides a continuous glucose monitoring apparatus of which a body-attachment unit starts operating, in a state in which the body-attachment unit is inside an applicator, by the supply of power to the body-attachment unit through a user operation, such as separation and removal of a protective cap, so that the operating start time point of the body-attachment unit is formed by means of the user operation immediately before the body-attachment unit is inserted into and attached to the human body, thereby enabling the body-attachment unit to start operating at an appropriate point in time, the body-attachment unit starts operating only by simply removing the protective cap even without performing separate additional work for starting operation of the body-attachment unit, thereby improving use convenience, and an operating method for a power supply switch means that supplies battery power to the body-attachment unit is formed as various methods that are linked with a separation and removal operation of the protective cap, and thus manufacturing and use convenience can be further improved.

The present disclosure relates to a continuous glucose monitoring apparatus, and provides a continuous glucose monitoring apparatus of which a body-attachment unit starts operating, in a state in which the body-attachment unit is inside an applicator, by the supply of power to the body-attachment unit through a user operation, such as separation and removal of a protective cap, so that the operating start time point of the body-attachment unit is formed by means of the user operation immediately before the body-attachment unit is inserted into and attached to the human body, thereby enabling the body-attachment unit to start operating at an appropriate point in time, the body-attachment unit starts operating only by simply removing the protective cap even without performing separate additional work for starting operation of the body-attachment unit, thereby improving use convenience, and an operating method for a power supply switch means that supplies battery power to the body-attachment unit is formed as various methods that are linked with a separation and removal operation of the protective cap, and thus manufacturing and use convenience can be further improved.

Disclosed are an implantable sensor driven by an alignment key, an implantable device comprising the implantable sensor, and a biometric data measurement system comprising the implantable device. The implantable device according to the present embodiment may comprise an implantable sensor forming a magnetic dipole moment in one direction from the inside to the outside of the body, and may be inserted into the body to measure biometric data by means of the implantable sensor.