5920 results about "Repair method" patented technology

Methods and apparatus for use in repairing an atrioventricular valve in a patient are provided. The methods comprise accessing the patient's atrioventricular valve percutaneously, securing a fastening mechanism to a valve leaflet, and coupling the valve leaflet, while the patient's heart remains beating, to at least one of a ventricular wall adjacent the atrioventricular valve, a papillary muscle, at least one valve chordae, and a valve annulus to facilitate reducing leakage through the valve.

A schedule for a complex activity is obtained by a scheduling system using a method of constraint-based iterative repair. A predetermined initial schedule is iteratively repaired, repairs being made during each iteration only to portions of the schedule that produce a constraint violation, until an acceptable schedule is obtained. Since repairs are made to the schedule only to repair violated constraints, rather than to the entire schedule, schedule perturbations are minimized, thereby reducing problems with the dynamic performance of the scheduling system and minimizing disruption to the smooth operation of the activity. All constraints on the scheduling activity can be evaluated simultaneously to produce a solution that is near optimal with respect to all constraints. In particular, consumable resource constraints can be evaluated simultaneously with other constraints such as, for example, reusable resource constraints, temporal constraints, state constraints, milestone constraints and preemptive constraints. The scheduling system of the invention is much quicker than previous scheduling systems that use, for example, constructive scheduling method. The system of the invention can also be easily modified to add, delete or modify constraints. Because of the minimization of schedule perturbation, coupling of all constraints, speed of operation, and ease of modification, the scheduling system of the invention is particularly useful for scheduling applications that require frequent and rapid rescheduling.

Methods and apparatus are provided for valve repair or replacement. In one embodiment, the apparatus is a valve delivery device comprising a first apparatus and a second apparatus. The first apparatus includes a heart valve support having a proximal portion and a distal portion and a heart valve excisor slidably mounted on said first apparatus. The second apparatus includes a fastener assembly having a plurality of penetrating members mounted to extend outward when the assembly assumes an expanded configuration; and a heart valve prosthesis being releasably coupled to said second apparatus. The first apparatus and second apparatus are sized and configured for delivery to the heart through an opening formed in a femoral blood vessel. The heart valve prosthesis support is movable along a longitudinal axis of the device to engage tissue disposed between the anvil and the valve prosthesis. The system may include a tent and/or an embolic screen to capture debris from valve removal.

The present invention generally relates to distributed data storage systems. In particular, the present invention is related to a method of data storing in a distributed data storage system that comprises a clustering of data blocks and the use of random linear combinations of data blocks that makes the distributed data store system efficient in terms of storage space needed and inter-device communication costs, both for the storage method, as for the associated repair method.

In one aspect, the present disclosure relates to a surgical device including an anchor body having an opening, the anchor body having a copolymer composition including polylactide-co-glycolide and calcium carbonate, wherein the calcium carbonate comprises more than 30% but less than 40% of the weight of the composition; and a flexible member passing through the opening, wherein deformation of the device occurs at body temperature. The present disclosure also relates to an oriented polymer material having a copolymer composition including a polylactide-co-glycolide and calcium carbonate, the calcium carbonate comprising more than 30% but less than 40% of the weight of the composition, wherein the material changes shape upon introduction to an environment having a temperature that is lower than a relaxation temperature of the material. A method of repairing soft tissue and other surgical devices are also disclosed.

A minimally invasive spinal disc defect repair method is disclosed. The method relates to insertion of disc defect repair materials that are substantially two-dimensionally shaped and which allow for insertion and preferably self retention within the disc defect with plugging of the annulus fibrosis.

Sheaths of fabric material are compressed on either side of a separator by manipulating internal and external catheters to form disks which sandwich the neck of an aneurysm to obliterate the aneurysm.

Methods for repairing and manufacturing a gas turbine blade, and the gas turbine blade repaired and manufactured with such methods are presented with, for example, the repair method comprising providing a gas turbine blade, the blade comprising a blade tip and a blade body; removing at least one portion of the blade tip; providing at least one freestanding tip insert; and disposing the at least one tip insert onto the gas turbine blade body such that the at least one tip insert replaces the at least one removed portion of the blade tip.

A turbine component formed from a niobium silicide-based composition is described. The component can be compositionally-graded through at least a portion of its structure. A turbine blade formed from a composition which includes a niobium silicide alloy is also described. The blade includes an airfoil; an airfoil tip region; a platform on which the airfoil is mounted; and a dovetail root attached to an underside of the platform. The niobium silicide alloy in at least one portion of the turbine blade is compositionally different from the niobium silicide alloy in another portion of the blade. Processes for fabricating a niobium silicide-based turbine article are also described, using laser cladding techniques. Repair methods are also set forth in the application.

A method of repairing cracks on a surface of a component such as gas turbine components includes the steps of repairing the cracks of the component by brazing, detecting remaining cracks on the surface or below the surface, which were not properly filled with braze material during the repair brazing operation, and repairing the crack zones with a focussed low-heat input welding method using an appropriate weld filler materials.

The present invention provides a fault prediction and condition-based repair method of an urban rail train bogie. An optimum service life distribution model of a framework, a spring device, a connecting device, a wheel set and axle box, a driving mechanism, and a basic brake device of a bogie is determined by adopting a method based on survival analysis; a reliability characteristic function of each subsystem is obtained; then, a failure rate of each subsystem of the bogie is calculated by adopting a neural network model optimized by an evolutionary algorithm; and finally, proportional risk modelling is conducted by taking the failure rate and safe operation days of each subsystem of the bogie as concomitant variables; and on the basis of cost optimization, thresholds and control limits for condition-based repair of a bogie system are obtained.

The invention discloses a face image repairing method based on a generative adversarial network. The method comprises the following steps that: (1) searching a great quantity of images which contain complete and clear faces, and establishing a face image database; (2) constructing the generative adversarial network; (3) training the generative adversarial network, and optimizing the parameters ofa generator and a descriminator in the generative adversarial network; and (4) inputting random vectors which obey normal distribution into the trained generator, generating the face image, comparingthe intact area of the face image to be repaired with the corresponding area of the generated image, continuously regulating the input vectors until the intact area of the face image to be repaired and the corresponding area of the generated image are similar, and finally, replacing the pixel value of a blocked or damaged area in the face image to be repaired by the pixel value of the corresponding area for generating the face image. By use of the method, the generative adversarial network with a deep learning structure is adopted by aiming at the problem that the blocked or damaged face imageis repaired, and therefore, an image repairing problem in image processing is effectively solved.

A fast line maintenance repair process for damaged composite structures includes the application of a pre-cured patch that uses a quick curing paste adhesive to bond the patch to the structure. The adhesive is cured at relatively low elevated temperatures provided by a chemical heat pack. The low temperature cure eliminates the need to dry out the part and permits the application of the repair in a hazardous environment. In a typical commercial airline application, airline maintenance personnel can install the repair at the flight gate. The repair is intended to restore the structure to a desired load capability in approximately one hour. The repair can be removed if need be with less overall damage than would occur upon removal of typical mechanically fastened repairs. All or some of the repair materials and tools can be provided in a portable kit.

Methods for repairing and manufacturing a gas turbine airfoil, and the airfoil repaired and manufactured with such methods are presented with, for example, the repair method comprising providing an airfoil having specified nominal dimensions, the airfoil comprising a first material, the first material having a creep life and a fatigue life, the airfoil further comprising a leading edge section and a trailing edge section; removing at least one portion of at least one section of the airfoil to create at least one deficit of material for the airfoil relative to the specified nominal dimensions, the at least one section selected from the group consisting of the leading edge section and the trailing edge section; providing at least one insert comprising a second material, the second material having a creep life that is at least substantially equal to the creep life of the first material, and a fatigue life that is at least substantially equal to the fatigue life of the first material; and disposing the at least one insert onto the airfoil such that the at least one deficit of material is substantially eliminated.

The invention provides a surfacing repair method for a large cold-rolled supporting roll, comprising the following steps of: turning processing before welding; nondestructive flaw detection; preheating before welding; surfacing of a diluting layer; surfacing of a supporting layer; surfacing of a working layer; distressing heat treatment in the middle of welding; final heat treatment after welding; turning processing of a roll body; nondestructive flaw detection of a finished product; and coating and packaging of the finished product. The surfacing repair method has the effects that the large cold-rolled supporting roll normally scrapped can be repaired for reutilization, so that the production cost of a steel rolling enterprise is greatly reduced; the comprehensive performance and the service life of the repaired large cold-rolled supporting roll are superior to those of the bought integral forged steel large cold-rolled supporting roll; and the surfacing repair method is beneficial to achieving the purposes of repairing the old and utilizing the waste, improving the quality and reducing the consumption, saving the energy and reducing the emission and being green and environmentally-friendly.

The invention relates to a method for data repair in a system capable of one-to-many transmission. The method comprises transmitting data from a sender to at least one receiver and provides for various sender driven or receiver driven repair methods of missing data.

A method of repairing data line defects and flat panel display incorporating the same. The shielding metal lines are disposed beside the data lines and the backup wires are across the adjacent data lines/shielding metal lines to repair disconnection defects in data lines. If several defects occur in the same data line, each defect can be repaired by laser fusing using the adjacent, suitable shielding metal line and the corresponding backup wires to detour around the defect to create an electrical loop. The flat panel display further comprises the shielding metal lines disposed beside the gate lines and the backup wires across the adjacent gate lines/shielding metal lines to repair disconnection defects in gate lines.

The invention discloses a fault detection and repair method, which comprises the following steps: receiving a fault detection and repair request of a client, wherein the fault detection and repair request comprises fault information; correspondingly acquiring a detection and repair strategy according to the fault information; selecting at least one detection and repair unit according to the detection and repair strategy; receiving a detection result which is sent by the client after receiving a detection command and finishing the detection at a local place, wherein the detection command is sent by the detection and repair unit; and receiving the repair result which is sent by the client after receiving a repair command and finishing the repair at the local place, wherein the repair command is sent by the detection and repair unit according to the detection result. Therefore, the automatic and flow detection and repair processes are realized, the personnel cost is reduced, and the user feeling is enhanced.

The invention provides an electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil. The method provided by the invention comprises the following steps of: filling contaminated soil into an electric repairing device, and then adding an oxidant into a cathode electrolyte and an anode electrolyte or directly spraying the oxidant on the contaminated soil, wherein the oxidant comprises hydrogen peroxide, pypocholoride and persulfate; applying a direct-current electric field on a cathode and an anode, wherein the strength of the electric field is 0.5-2 V/cm; and controlling the pH values of the cathode electrolyte and the anode electrolyte to be 3-11. By selecting the suitable for oxidant and controlling the pH value of the electrolyte, the migration of the heavy metal can be effectively increased and the removing efficiency is improved; and meanwhile, the oxidant is used for effectively degrading organic pollutants when the pollutants are migrated, thereby relieving the post-treatment and simultaneously removing the heavy metal and the organic pollutants.

The invention provides a micro-organism restoration product and a restoration method used for soils polluted by petroleum and petroleum products. The micro-organism restoration product consists of degrading bacteria of hydrocarbon, biological nutrient, biology surfactant and soil activator; the four components are singly stored; in the micro-organism restoration method, the four matters are added according to a certain proportion and steps and mixed at the same time so as to complete the inoculation of biology restoration; subsequently, diluent of the biological nutrient and the soil surfactant are sprayed periodically, meanwhile, water is supplemented and the plowing and oxygen solarisation of the soil are carried out till that the required indexes are achieved. The micro-organism restoration method and the micro-organism restoration product of the invention solidify the degrading bacteria on wheat bran, solve the problem of long-term storage of the miro-organism, and can obtain the required micro-organism with the activation can be obtained by activating the micro-organism by warm water when in use; the method can adopt in-situ biological restoration or ex-situ biological restoration.

The invention provides a relative positioning device for satellite navigation and a carrier phase cycle-slip repairing method of the device. A satellite navigation antenna on a base station receives a navigation signal, outputs ephemerides and observed quantities of all satellites through a satellite navigation receiver and sends the ephemerides and the observed quantities to a mobile station; the mobile station receives data sent by the base station and outputs the data to a comprehensive information processing module, a satellite navigation antenna on the mobile station receives the navigation signal and outputs the ephemerides and the observed quantities of all the satellites through the satellite navigation receiver, the comprehensive information processing module performs gross error processing on data output by the base station and the mobile station, carrier phase cycle-slip detection and repairing are finished, a double-difference observation equation is established through carrier phase double-difference processing, the whole-cycle ambiguity is resolved, and relative positioning information is output. With the adoption of the device and the method, the cycle-slip can be detected and repaired in real time, outliers can be marked out in real time, meanwhile, the cycle-slip occurrence frequency can be determined, high-precision relative positioning can be realized, and the availability of a system is guaranteed.