279 results about "Self forming" patented technology

An intravascular flow modifier (IFM) for use in a vessel has an outer layer formed of a strand configured as a longitudinally oriented coil of adjacent helical loops extending between a first end and a second end of the outer layer. The outer layer is secured in the vessel by at least some of the helical loops pressing against a portion of the interior surface of the vessel. The IFM also has an inner layer formed of a strand configured as a longitudinally oriented coil of adjacent helical loops extending between a first end and a second end of the inner layer. At least a portion of the outer layer surrounds at least a portion of the inner layer so that at least some of the loops of the outer layer overlap and contact at least some of the loops of the inner layer An assembly and method for deploying are also disclosed.

A heart valve can be replaced using minimally invasive methods which include a sutureless sewing cuff that and a fastener delivery tool that holds the cuff against the patient's tissue while delivering fasteners to attach the cuff to the tissue from the inside out. The tool stores a plurality of fasteners and is self-contained whereby a fastener is delivered and placed all from inside a vessel. The fasteners are self-forming whereby they do not need an anvil to be formed. Anchor elements are operated from outside the patient's body to cinch a prosthesis to an anchoring cuff of the valve body. The cuff is releasably mounted on the tool and the tool holds the cuff against tissue and drives the fastener through the cuff and the tissue before folding over the legs of the fastener whereby secure securement between the cuff and the tissue is assured. Fasteners are placed and formed whereby fasteners are located continuously throughout the entire circumference of the cuff. A minimally invasive surgical method is disclosed, and a method and tool are disclosed for repairing abdominal aortic aneurysms in a minimally invasive manner. Fasteners that are permanently deformed during the process of attaching the cuff are disclosed as are fasteners that are not permanently deformed during the attaching process.

This is an implantable vaso-occlusive device. The device has a complex, three-dimensional structure in a relaxed configuration that may be used in the approximate shape of an anatomical cavity. It may be deployed in the approximate shape of a sphere, an ovoid, a clover, a box-like structure or other distorted spherical shape. The loops forming the relaxed configuration may pass through the interior of the structure. The device is a self-forming shape made from a pre-formed linear vaso-occlusion member. Fibers may be introduced onto the device and affixed to the pre-formed linear member. The constituent member may be also be covered with a fibrous braid. The device is typically introduced through a catheter. The device is passed axially through the catheter sheath and assumes its form upon exiting the catheter without further action. The invention also includes methods of winding the anatomically shaped vaso-occlusive device into appropriately shaped forms and annealing them to form various devices.

A network performance (e.g., latency and bandwidth) measurement infrastructure for large scale networks based on self-organized probing groups of devices. Each group of devices has a lead device that measures network characteristics, and then shares the measurement information with other devices. This grouping method reduces the amount of network bandwidth needed for adequate measurements, while still providing necessary information to individual devices. The system utilizes a novel multicast-based algorithm that is adopted for both intra-group and inter-group performance measurement. The measurement groups (MeGroups) are dynamic and self-forming, and use a set of heuristic algorithms to optimize the dynamic groupings.

A soft-solid ear piece is formed to fit the typical human ear canal and will self form to fill the ear cavity by having an internal structure, endoskeleton, or bladder to expand to precisely fit the ear piece securely and comfortably in the ear canal. This self forming ear piece will enable ready-ware and custom molded hearing aids, hearing protectors, audio ear pieces, cell phone ear pieces and assistive listening devices to fit comfortably, securely, and free of acoustic feedback in the external ear canal. It creates an acoustic seal to optimally reduce peripheral leakage and intermodulation distortion delivering excellent acoustic performance while keeping environmental sounds blocked out.

The invention discloses an auxiliary disease judgment method based on diagnostic element data association, belonging to the field of information analysis and aid decision making. The auxiliary disease judgment method comprises the following steps: establishing a disease library according to clinical experience and expert data; establishing a symptom library by taking symptoms to which each disease model relates in the disease library to serve as the constitution elements of the symptom library; according to the symptom information of a patient, selecting the symptoms in the symptom library to serve as the symptom set of the patient; according to the selected symptoms, finding all diseases with the symptoms from the preset disease library; and listing as a disease list according to the decreasing correlation degree or suspected probability. In the method, limited known information can be furthest utilized based on the practical requirement on diagnosis and treatment on patients by doctors according to the step of diagnosing patients for doctors in the practical work, and the information can be added and revised to furthest simulate the real situation. The obtained information (contents, such as symptoms and the like) is fully simulated by utilizing a self-forming rule, thus the method is suitable for the complex situation of the randomness and dynamics of the information resource of the disease.

A logical distributed server is generated for managing (Internet Protocol (IP) address allocation for an ad-hoc, self-forming peer-to-peer (P2P) network. The logical distributed server is generated according to messaging scheme where nodes on the P2P network allocate addresses for themselves and for clients connected to them. Each node implements a server that listens on the incoming client connections. Each node maintains data structures that represent the current state of an address database. Routing requests are fielded by the nodes from the clients and the messaging scheme is used to inform other nodes of its action so a consistent address space is maintained between all the nodes on the P2P network.

When a barrier film is formed on an exposed surface of an interlayer insulation film on a substrate, the interlayer insulation film having a recess formed therein, and a metal wiring to be electrically connected to a metal wiring in a lower layer is formed in the recess, a barrier film having an excellent step coverage can be formed and increase of a wiring resistance can be restrained. An oxide film on a surface of the lower copper wiring exposed to a bottom surface of the interlayer insulation film is reduced or edged so as to remove oxygen on the surface of the copper wiring. Then, by supplying an organic metal compound containing manganese and containing no oxygen, generation of manganese oxide as a self-forming barrier film is selectively allowed on an area containing oxygen, such as a sidewall of the recess and a surface of the interlayer insulation film, while generation of the manganese oxide is not allowed on the surface of the copper wiring. Thereafter, copper is embedded in the recess.

A method of forming an electrochemical cell is disclosed. The method comprises contacting a negative pole layer and a positive pole layer one with the other or with an optional layer interposed therebetween. The pole layers and the optional layer therebetween are selected so as to self-form an interfacial separator layer between the pole layers upon such contacting.

Provided are methods by which multiple devices self-form a wireless communication network and self-coordinate their access to communication media. In these methods, an individual node maintains its knowledge of other nodes in its vicinity and knowledge of those nodes' scheduled activities to an adequate degree of details. Such knowledge can be obtained by receiving control signals from nodes that are within the range of wireless communication. Examples of such knowledge include the identities of the nodes in the vicinity, the nodes' scheduled times of control message transmission and/or reception, the nodes' scheduled times of application data transmission and/or reception, etc. Such knowledge can be embodied in the form of a memory module of a computing device. The presented methods also provide a procedure by which an individual node maintains its knowledge of the scheduled signal transmission and/or reception activities, or an estimate or prediction of the scheduled transmission and/or reception activities, of other nodes that are not within the individual node's signal-reachable range.

Therapeutic-agent-releasing medical devices are provided herein, which contain a rate controlling release region that includes a biodisintegrable agent and a biostable low glass transition temperature polymer. Upon contact (e.g., implantation or insertion) of the medical device with a subject, at least the surface of the release region becomes depleted of the biodisintegrable agent, and the low glass transition temperature polymer migrates to occupy at least a portion of the volume that is created by the departure of the biodisintegrable agent, thereby forming a barrier layer for therapeutic agent remaining within the device.

A memory device has a first electrode, a second electrode, and memory material defining an inter-electrode current path between the first electrode and the second electrode. A gap is formed by shrinkage of the shrinkable material between the memory material and a shrinkable material next to the memory material.

Using this methodology, a wireless network can be self-forming or “ad-hoc” in nature. That is, the formation of the network does not depend upon the presence of a pre-determined central coordinator. Second, it can accommodate relatively rapid changes in network configuration, including changes in the number and location of the devices participating in the network, and changes in the channel conditions experienced by communication devices. Third, it can accommodate an extended network system where the population of devices that are able to communicate wirelessly, either directly, or indirectly via devices that also act as repeaters, may be spread over a relatively large geographic area. Fourth, it can provide robust Quality of Service through the use of time reservations or “slots” during which one device or a limited number of devices are allowed to transmit. Fifth, it can provide good power management qualities, such that there are mechanisms which allow devices minimize active time and to transition in and out of reduced power “sleep” states while still maintaining the ability to communication.

A non-carbon, metal-based slow-consumable anode of a cell for the electrowinning of aluminium self-forms during normal electrolysis an electrochemically-active oxide-based surface layer (20). The rate of formation (35) of the layer (20) is substantially equal to its rate of dissolution (30) at the surface layer/electrolyte interface (25) thereby maintaining its thickness substantially constant, forming a limited barrier controlling the oxidation rate (35). The anode (10) usually comprises an alloy of iron with at least one of nickel, copper, cobalt or zinc which during use forms an oxide surface layer (20) mainly containing ferrite.

The invention discloses a system and a method of testing a micromotion contact resistance. The system comprises a microchecker unit, a micromotion contact resistance test unit, a data acquisition unit and a computer unit. The method has the following steps that a test micromotion contact resistance system is started for initialization, and the micromotion and control command parameter information is set in the computer unit and sent to the microchecker unit; the microchecker unit carries out micromotion according to the received micromotion and control command parameter information and adjusts the micromotion amplitude according to the self-formed micromotion feedback information; the micromotion contact resistance test unit carries out contact resistance test for a connector contact pair in micromotion, and the data acquisition unit samples the contact voltage signal and outputs the sampled signal to the computer unit for data storage, processing and graphic display. The system and the method of measuring a micromotion contact resistance are capable of regulating and controlling test parameters according to requirements, widening the test channel of the micromotion contact resistance and improving the accuracy of micromotion contact resistance test.

A self-forming container having a continuous side wall with opposing top and bottom edges connected by an interior side wall surface, said side wall preferably having less than 10% shrink at 90° C., and more preferably being nonshrinkable; and a heat shrinkable connecting wall connected to at least first and second opposing portions of the sidewall and forming therewith a adapted for heat activated self-forming into a stand up con figuration having a stable base connected to and supporting said side wall.

A field deployable sensor node for determining electrical usage in an electrical power grid comprises a sensor capable of removable engagement with a supply line electrical wire and capable of measurement of at least one of current and voltage to produce measurement data; an analog to digital conversion means; a microcontroller circuit; a transceiver; storage memory for data; and a means to communicate with other nodes and self-form into a communications network selected from the group consisting of a mesh, star, and tree network topology forming a Field Area Network (FAN).