摘要:
An electrode array having a splayable bundle of fibers having heat-sharpened tips. A method of manufacturing an electrode array including heat-sharpening a tip of each of a plurality of fibers; and bundling the plurality of fibers. A method of implanting an electrode array into a subject, the electrode array having a bundle of fibers, the method including exposing a target in the subject for the electrode array; and inserting the bundle of fibers into the target, where forces holding the bundle of fibers together are released during the insertion thus resulting in splaying of the fibers. An electrical connection with the fibers can be formed by a conductive material, or in high-channel count designs formed by surface mounting two-dimensional amplifier arrays to a base of a fiber array.
摘要:
Techniques are used for adaptation of drug-administration parameters that control insulin delivery in a blood glucose control system. One technique provides long-term adaptation of a nominal basal infusion rate, adapting to longer-term changes in a patient's needs due to growth, illness, hormonal fluctuations, physical activity, aging, etc. Another technique provides adaptation of priming dose size at mealtimes for overall better glycemic control and also adapting to longer-term changes in a patient's needs. Adaptation calculations use a receding-horizon window of recent values of the adapted parameter. Doses of a counter-regulatory agent (e.g., glucagon) may also be delivered in response to information about estimated accumulation of exogenously infused insulin (subcutaneously, intramuscularly, intraperitoneally, or intravenously) and/or the effect insulin might have on glucose levels (blood glucose concentration or interstitial fluid glucose concentration).
摘要:
The present invention relates generally to the control of fluid flow rate and direction on a microfluidic device. In particular, the present invention provides an integrated valveless microfluidic device, where directional fluid control is controlled using off-chip remote valve switching and fluid flow rate changes are controlled using on-chip flow-rate changing fluid reservoirs. The present invention provides methods and systems for directional fluid control and control of fluid flow rate in an integrated microfluidic device which enables processes with different flow rates to be performed on one device without the need of on-chip valves.