摘要:
A combined IC/Mems process forms the IC parts first, and then forms the MEMS parts. One option forms a parylene overlayer, then forms a cavity under the parylene overlayer.
摘要:
Microscale valves for use in, e.g., micropump devices, may be formed of a slitted diaphragm bonded to the interior of a valve tube. A bump in the diaphragm and/or a backward-leakage stopper may increase the breakdown pressure of the valve. A push-rod may be used to pre-load the valve membrane to thereby increase the cracking pressure.
摘要:
In various embodiments, a tool is employed in filling a drug-delivery device. The tool may include, for example, a needle that is admitted through a fill port of the drug-delivery device.
摘要:
Embodiments of an implantable electrolytic pump include a first expandable diaphragm and a second flexible diaphragm, and first and second chambers each for containing a fluid, wherein the first expandable diaphragm separates the first and second chambers and provides a fluid barrier therebetween, and the second chamber is formed between the first expandable diaphragm and the second flexible diaphragms. The pump may further include electrolysis electrodes within the first chamber for causing generation of a gas therein and to thereby expand the expandable diaphragm so that fluid is forced from the second chamber into a cannula.
摘要:
In various embodiments, a tool is employed in filling a drug-delivery device. The tool may include, for example, a needle that is admitted through a fill port of the drug-delivery device.
摘要:
In various embodiments, a tool is employed in filling a drug-delivery device. The tool may include, for example, a needle that is admitted through a fill port of the drug-delivery device.
摘要:
Embodiments of method of manufacturing an implantable pump, including providing an upper layer comprising a dome structure for housing a drug chamber and a cannula in fluid communication with the drug chamber, providing a middle deflection layer adjacent the drug chamber, providing a bottom layer comprising electrolysis electrodes, and bonding the upper layer, middle deflection layer, and bottom layer to form the pump.
摘要:
Embodiments of an implantable electrolytic pump include an electrolysis chamber, a drug chamber and an osmosis chamber, the osmosis chamber having a first portion in contact with the drug chamber and a second portion exposed to facilitate contact with a surrounding fluid. The pump further includes a cannula for conducting liquid from the drug chamber and electrolysis electrodes within the electrolysis chamber for causing generation of a gas therein, the electrolysis and drug chambers being in contact such that gas electrolysis within electrolysis chamber forces fluid from the drug chamber into the cannula, contact between the drug chamber and the osmosis chamber permitting fluid admitted into the osmotic chamber from the surrounding fluid to offset volume loss from the drug chamber and prevent buildup of vacuum pressure thereon.
摘要:
Embodiments of an implantable electrolytic pump include a first expandable diaphragm and a second flexible diaphragm, and first and second chambers each for containing a fluid, wherein the first expandable diaphragm separates the first and second chambers and provides a fluid barrier therebetween, and the second chamber is formed between the first expandable diaphragm and the second flexible diaphragms. The pump may further include electrolysis electrodes within the first chamber for causing generation of a gas therein and to thereby expand the expandable diaphragm so that fluid is forced from the second chamber into a cannula.
摘要:
A flexible skin formed of silicon islands encapsulated in a polyimide film. The silicon islands preferably include a MEMS device and are connected together by a polyimide film (preferably about 1–100 μm thick). To create the silicon islands, silicon wafers are etched to a desirable thickness (preferably about 10–500 μm) by Si wet etching and then patterned from the back side by reactive ion etching (RIE).