摘要:
A system for extracting a bodily fluid sample (e.g., an interstitial fluid [ISF] sample) and monitoring an analyte therein includes a disposable cartridge and a local controller module. The disposable cartridge includes a sampling module adapted to extract a bodily fluid sample and an analysis module adapted to measure an analyte (e.g., glucose) in the bodily fluid sample. The local controller module is in electronic communication with the disposable cartridge and is adapted to receive and store measurement data from the analysis module. An ISF extraction device includes a penetration member configured for penetrating and residing in a target site of a user's skin layer and, subsequently, extracting an ISF sample therefrom. The device also includes a pressure ring(s) adapted for applying pressure to the user's skin layer in the vicinity of the target site. The device is configured such that the pressure ring(s) is capable of applying pressure in an oscillating manner whereby an ISF glucose lag of the ISF sample extracted by the penetration member is mitigated. A method for extracting ISF includes providing an ISF fluid extraction device with a penetration member and a pressure ring(s). Next, a user's skin layer is contacted by the pressure ring(s) and penetrated by the penetration member. An ISF sample is then extracted from the user's skin layer while pressure is being applied in an oscillating manner by the pressure ring(s). The oscillating pressure mitigates an ISF glucose lag of the extracted ISF sample extracted.
摘要:
A method for extracting interstitial fluid from a target site of a user includes adhesively attaching a floating ring of a sampling module for extracting interstitial fluid to the user in the vicinity of a target site and then mounting the sampling module to the floating ring and attaching the sampling module to the user. Subsequently, the target site is penetrated with a penetration member of the sampling module. Pressure is then applied in another vicinity of the target site by a pressure ring of the sampling module and, thereafter, ISF extracted from the target site via a penetration member of the sampling module.
摘要:
A sampling module for extracting interstitial fluid (ISF) from a user's body includes a housing assembly and a pressure ring assembly operatively contained within the housing assembly. The pressure ring assembly includes a penetration member configured for penetrating a target site of the user's body and, subsequently, residing in the target site and extracting ISF therefrom. The pressure ring assembly also includes a pressure ring configured for applying pressure to the user's body in a first vicinity of the target site and a floating ring with an adhesive layer disposed on it's distal end. The adhesive layer of the sampling module provides for adhesive attachment of the floating ring to the user's body in a second vicinity of the target site, thereby influencing target site deformation during use of the sampling module.
摘要:
A sampling module for extracting interstitial fluid (ISF) from a user's body includes a housing assembly and a pressure ring assembly operatively contained within the housing assembly. The pressure ring assembly includes a penetration member configured for penetrating a target site of the user's body and, subsequently, residing in the target site and extracting ISF therefrom. The pressure ring assembly also includes a pressure ring configured for applying pressure to the user's body in a first vicinity of the target site and a floating ring with an adhesive layer disposed on it's distal end. The adhesive layer of the sampling module provides for adhesive attachment of the floating ring to the user's body in a second vicinity of the target site, thereby influencing target site deformation during use of the sampling module.
摘要:
An analytical device for predicting a subject's whole blood analyte concentration based on the subject's interstitial fluid (ISF) analyte concentration includes an ISF sampling module, an analysis module and a prediction module. The ISF sampling module is configured to sequentially extract a plurality of ISF samples from a subject. The analysis module is configured to sequentially determining an ISF analyte concentration (e.g., ISF glucose concentration) in each of the ISF samples, resulting in a series of ISF analyte concentrations. The prediction module is configured for storing the series of ISF analyte concentrations and predicting the subject's whole blood analyte concentration based on the series by performing at least one algorithm. A method for predicting a subject's whole blood analyte concentration based on the subject's interstitial fluid analyte concentration includes extracting a plurality of interstitial fluid (ISF) samples from a subject in a sequential manner and sequentially determining an ISF analyte concentration in each of the plurality of ISF samples to create a series of ISF analyte concentrations. The subject's blood analyte concentration is then predicted based on the series of ISF analyte concentrations by performing at least one algorithm.