摘要:
A fixation device for holding stimulating electrodes in electrical contact with the wall of a portion of the gastrointestinal tract is provided. In one embodiment, the fixation device includes an expandable member that fixes the electrodes in electrical contact with the gastrointestinal tract wall. Also provided is an implantable device and method for controlling the opening and/or closing of the pylorus. In particular a device and method is provided for stimulating the duodenum to control the closing/and or opening of the pylorus.Finally, a method is provided for treating obesity by controlling the pylorus to retain food in the stomach for a desired period of time, among other things to provide a feeling of satiety and/or to reduce hunger. One aspect includes controlling the pylorus's contraction by electrical stimulation of the duodenum.
摘要:
The present invention relates to an additive composition for a combustible fuel to produce improved combustion and reduced exhaust pollution of the combusted fuel, which additive composition comprises: a) one or more water-soluble alcohols having between 1 and 5 carbon atoms, in an anhydrous state or as a 0.5-36% aqueous solution, and one or more of the following: b) one or more straight- or branched- chain alcohols having between 6-18 carbon atoms; c) one or more ethoxylated alcohols having between 12 and 18 carbon atoms where the ethylene oxide add-on is less than 5 moles; d) a fatty acid of the structure R—(C═O)—OH having from 10 to 24 carbon atoms with e) a source of nitrogen in an anhydrous state or as an aqueous solution; wherein components a) to e), when combined with mixing with said combustible fuel, form a clear, stable microemulsion having a viscosity similar to the liquid fossil fuel. Combustion is improved and pollutant and particulate levels are reduced.
摘要:
An acellular matrix implant for treatment of defects and injuries of articular cartilage, bone or osteochondral bone and a method for treatment of injured, damaged, diseased or aged articular cartilage or bone, using the acellular matrix implant implanted into a joint cartilage lesion in situ and a bone-inducing composition implanted into an osteochondral or bone defect. A method for repair and restoration of the injured, damaged, diseased or aged cartilage or bone into its full functionality by implanting the acellular matrix implant between two layers of biologically acceptable sealants and/or the bone-inducing composition into the osteochondral bone or skeletal bone defect. A method for fabrication of the acellular matrix implant of the invention. A method for preparation of bone-inducing composition.
摘要:
A device, system and method for diagnosing and treating gastric disorders is provided. A functional device resides within the patient's stomach and is secured to the stomach wall by an attachment device. The functional device may be a sensor for sensing various parameters of the stomach or stomach environment, or may be a therapeutic delivery device. The functional device in one embodiment provides a device, system and method for gastric electrical stimulation where stimulating electrodes are secured to the wall of the stomach by the attachment device or otherwise. A preferred device includes: at least one stimulating electrode in electrical contact with the stomach wall; an electronics unit containing the electronic circuitry of the device; and an attachment mechanism for attaching the device to the stomach wall. The functional devices may be programmed to respond to sensed information or signals. An endoscopic delivery system delivers the functional device through the esophagus and into the stomach where it is attached the stomach wall. The endoscopic instruments attach or remove the attachment devices and functional devices from the stomach and may be used to assist in determining the optimal attachment location.
摘要:
Provided is a process for lithographically patterning a material on a substrate comprising the steps of (a) depositing a radiation sensitive material on the substrate by chemical vapor deposition; (b) selectively exposing the radiation sensitive material to radiation to form a pattern; and (c) developing the pattern using a supercritical fluid (SCF) as a developer. Also disclosed is a microstructure formed by the foregoing process. Also disclosed is a process for lithographically patterning a material on a substrate wherein after steps (a) and (b) above, the pattern is developed using a dry plasma etch. Also disclosed is a microstructure comprising a substrate; and a patterned dielectric layer, wherein the patterned dielectric layer comprises at least one two-dimensional feature having a dimensional tolerance more precise than 7%. Also disclosed is a microelectronic structure comprising a substrate; a plurality of transistors formed on the substrate; and a plurality of conductive features formed within a dielectric pattern, wherein the plurality of conductive features include at least one two-dimensional feature having a dimensional tolerance more precise than 7%.
摘要:
The present invention provides an apparatus and method for controlled release of a fumigant into a wooden structure to prevent decay of that structure. According to the present invention, a fumigant in an ampule or container is inserted into the wooden structure. The ampule or container is made of a polymeric material that does not react with the fumigant, but having walls which are permeable to the fumigant such that, when inserted into the wooden structure, the rate of release of the fumigant through the walls of the ampule is slow enough to continuously treat and arrest decay of the wooden structure, particularly decay caused by fungi, over extended periods of time (i.e., 1, 5, 7, 10, 15, 20 or 30 years). The rate of release of the fumigant can be controlled by the type of fumigant, the shape of the container, the specific polymer used to make the container, and by the thickness of the container wall.
摘要:
The present invention concerns methods of quantifying nucleic acids using a bioluminescence regenerative cycle (BRC). In BRC, steady state levels of bioluminescence result from processes that produce pyrophosphate. Pyrophosphate reacts with APS in the presence of ATP sulfurylase to produce ATP. The ATP reacts with luciferin in a luciferase-catalyzed reaction, producing light and regenerating pyrophosphate. The pyrophosphate is recycled to produce ATP and the regenerative cycle continues. Because the kinetic properties of ATP sulfurylase are much faster than luciferase, a steady state results wherein concentrations of ATP and pyrophosphate and the rate of light production remain relatively constant. Photons are counted over a time interval to determine the number of target molecules present in the initial sample. The BRC process has a controllable dynamic range up to seven orders of magnitude and is sensitive enough to detect a few thousand molecules of target nucleic acid.
摘要:
A process for manufacturing bulk solutions and lyophilized pure α-aztreonam lysinate for large scale production of an inhalable aztreonam is disclosed, as is a pure α-aztreonam lysinate for inhalation. A dry powder or lyophilized pure α-aztreonam lysinate composition for inhalation is also disclosed.
摘要:
A device, system and method for diagnosing and treating gastric disorders is provided. A functional device resides within the patient's stomach and is secured to the stomach wall by an attachment device. The functional device may be a sensor for sensing various parameters of the stomach or stomach environment, or may be a therapeutic delivery device. The functional device in one embodiment provides a device, system and method for gastric electrical stimulation where stimulating electrodes are secured to the wall of the stomach by the attachment device or otherwise. A preferred device includes: at least one stimulating electrode in electrical contact with the stomach wall; an electronics unit containing the electronic circuitry of the device; and an attachment mechanism for attaching the device to the stomach wall. The functional devices may be programmed to respond to sensed information or signals. An endoscopic delivery system delivers the functional device through the esophagus and into the stomach where it is attached the stomach wall. The endoscopic instruments attach or remove the attachment devices and functional devices from the stomach and may be used to assist in determining the optimal attachment location.
摘要:
A method is provided for performing crystallization experiments for a molecule, the method comprising performing a plurality of crystallization experiments where the crystallization experiments have volumes of less than 1 microliter, the crystallization experiments comprising a molecule to be crystallized and a composition that varies among the plurality of crystallization experiments detecting crystal formation in the crystallization experiments.