1549 results about "Repair material" patented technology

Disclosed herein are tools for repairing articular surfaces repair materials and for repairing an articular surface. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

The present invention is directed to a device that can be placed between two adjacent vertebrae, and that is used to repair an injury or defect in the anulus of the intervertebral disk. The implant is characterized by having a flexible structure anchored to the vertebral bone, the flexible structure connected with a patch held in place over the injury or defect. The flexible structure has a hollow interior space which can sustain inside it a hydrogel cushion. The hydrogel cushion acts as a shock absorber for the spine, maintains height of the intervertebral disk space, and prevents further disk herniation due to the narrowing of the intervertebral disk space.

A method and apparatus are described for creating a fluid seal in a subterranean well structure having a fluid seal defect. The method comprises introducing a meltable repair material proximate a structure in a subterranean well which has a fluid seal defect or enhanced seal capacity is required or it is desired to temporarily or permanently hydraulically isolate a portion the well or strengthen the structural integrity of well tubulars or tubular hangers. Exothermic reactant materials are located proximate the meltable repair material. The exothermic reactant material is ignited or an exothermic reaction otherwise initiated which supplies heat to and melts the meltable repair material into a molten mass. The molten mass flows and solidifies across the structure and the fluid seal defect to effect a fluid seal in the subterranean well structure or the structural integrity is enhanced. Examples of preferred exothermic reactant materials include thermite, thermate, fusible chemical reactants such as ammonium chloride and sodium nitrate, and oxidizers and accompanying hydrocarbon based fuels. Examples of preferred meltable repair materials include solder or brazing materials and eutectic metals which expand upon cooling and solidifying from a molten state.

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.

Multilayer structures including a porous layer and a non-porous layer having a reinforcement member are useful as dural repair materials.

Systems, devices and methods are provided for augmenting intervertebral discs. The systems include implantable annulus repair and augmentation devices as well as implantable prosthetic materials for replacing a portion of or augmenting the annulus and/or the nucleus pulposus. The systems further include instruments for implanting the subject devices and materials in a minimally invasive manner. The methods are directed to the minimally invasive implantation of one or more of the subject annulus repair devices and the prosthetic materials concurrently.

A composition and a method of use as a dental restorative. A series of highly alkoxylated tri-functional monomers are used as a low viscosity monomer in a photo- or self-curable dental composition that resulted in low polymerization shrinkage. The mechanical strength of the restorative material was not compromised. The restorative composition may be used as a dental filling material, a cement, a liner/base, or an adhesive.

Ceramic precursor powders are combined with a binder and pressed into blocks or similar shapes to form green bodies. The ceramic powders consist of fairly uniform particles thoroughly dispersed to be essentially free of agglomerates such that it will sinter predictably and isotropically without appreciable distortion. The green bodies may be soft-sintered to a bisque density less than about eighty five percent of the final density. The soft-sintered blocks are then milled to a desired shape and sintered to a final density rendering a high strength dental restorative material. The material may be aluminum oxide, partially stabilized zirconium oxide, mixtures of the two, mullite or any suitable oxide that may be sintered to high strength (i.e., greater than 250 MPa).

The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.

A method and system for repairing a defect area in a surface of a joint include providing a mold having a first surface and a second surface, positioning the mold within the joint such that at least part of the mold first surface overlies the defect area, and depositing a repair material under the mold first surface within the defect area to create a repaired site within the joint.

Etching compositions, curable compositions, packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch compositions generally include a gelling agent, an inorganic acid, an organic acid and either a solvent, a surfactant or mixtures thereof. The curable composites include reactive monomers and crosslinking agents that are effective to adhere to the surface of the treated substrate. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.

The invention discloses a preparation method and application of hierarchical porous bioactive ceramic. The preparation method comprises the following steps: mixing a binding agent, plasticizer and solvent to obtain an additive emulsion; adding a pore forming agent into the additive emulsion, and mixing to obtain a pore forming agent viscous liquid; adding bioactive powder into the pore forming agent viscous liquid, compounding, and aging to obtain high-plasticity mud pies; and performing extrusion molding on the mud pies, drying, sintering to obtain honeycombed hierarchical porous bioactive ceramic, grouting with a bioactive powder suspension to regulate the size and shape of pores, drying again, and firing to finally obtain the bioactive ceramic having a hierarchical pore size structure and a non-acute pore shape. According to the invention, the preparation method is simple; industrial production can be realized; and the hierarchical porous bioactive ceramic having the advantages of high porosity, favorable mechanical property, satisfactory connectivity and the like can be prepared and is an ideal bone defect repair material.

The invention discloses bio-medical engineering material and preparation method thereof, particularly relates to 3D tissue repair material suitable for adhesively growing of cell and preparation method thereof, belonging to bio-medical material technique domain. The natural tussah silk is used as raw material. After antheraea pernyi silk fibroin dissolves, 3D non-woven web structure composed of antheraea pernyi silk fibroin fibre is obtained by electrostatic spinning, wherein the fibre diameter is 50nm-20 mu m, the hole between the fibres is 1-500 mu m, the thickness of non-woven web is 50nm-20mm, and molecular weight of the antheraea pernyi silk fibroin is 10X10<4>-20X10<5>D. The bio-medical engineering material has features of non-poison, harmless, good biocampatibility, good adhesive growth ability of cell, etc. Because of the wide materials supply and low cost, the said material will replace some high-cost bio-medical material such as collagen, and will be used for repair material such as artificial skin, tendon, cartilage, duramater and so on, particularly for histiocyte induction material.

The invention provides a composite repair material which facilitates surgical operation and realizes quick defect nerve bridging and composition, preparation and application of a stent made of the composite repair material. The composite repair material consists of a fibroin layer, a collagen layer and a high-molecular polymer layer which are sequentially arranged, and during application, the composite repair material is folded or wound to form the nerve bridging stent taking the fibroin layer as the inner layer, the collagen layer as the middle layer and the high-molecular polymer as the outer layer. The composite repair material and the stent made of the composite repair material adopt the layered arrangement and a specific three-dimensional design to bring the advantages of various repair materials into full play, and meanwhile, make up for the deficiencies of the various repair materials. During surgical operation, only suturing or bonding anastomosis of epineurium is required but not suturing of perineurium, so that the operation time of a defect nerve bridging operation is greatly shortened, the operation technical difficulty is lowered, and the security is improved.

The invention discloses an ectopic classification leaching repair complete process of arsenic and heavy metal contaminated soil. The repair process comprises the following steps: the contaminated soil is magnetically separated to extract and recover target metals; a nonmagnetic component is divided into three grades by a vibrating screen after being primarily crushed; stones and boulders are flushed by clear water to directly serve as building materials; thick and fine soil particles obtained through screening respectively enter second-grade leaching mixing equipment for washing; the solid-liquid separation is performed for mud generated by washing through a two-stage hydraulic cyclone device; leaching waste liquid is purified and regenerated for recycling; sludge is added with such repair materials as curing/stabilizing agents for safety treatment after being dehydrated; and after the treatment, the soil particles can be backfilled, or can serve as roadbeds, building materials and the like. Based on the characteristic of large difference of arsenic and heavy metal contents in soils with different particle sizes, the soil leaching treatment according to the particle size is performed, so that the process has such advantages as low repair cost, high treatment efficiency and saving of energy consumption, provides a new method for soil heavy metal pollution abatement, and is broad in application prospect.

The invention provides a turbine engine blade automatic repairing device and method. The turbine engine blade automatic repairing device comprises a computer, a laser, a mechanical arm, a powder feeder, a laser head, a three-dimensional scanner, a blade defect automatic detection device, a polishing device and an installation base. According to the turbine engine blade automatic repairing method, the computer generates a laser repairing movement path, laser generated from the laser is projected to turbine engine blades with repairing material powder, the mechanical arm drives the installation base to move with six degrees of freedom inside space, and the laser performs fusion covering on the turbine engine blades along a set path. The turbine engine blade automatic repairing device and method adopts highly integrated and automated repairing device and technology to achieve automatic and intelligent repairing of the turbine engine blades and accordingly the repairing efficiency and quality of the turbine engine blades are improved.

The invention relates to an active wound repair material, specifically to a functional dressing and a preparation method and application thereof, belonging to the field of medical materials. To overcome a technical problem, the invention provides the functional dressing, which belongs to biologically active wound repair materials. The functional dressing is prepared from the following raw materials by weight: 2 to 6 parts of biologically active glass, 12 to 20 parts of alginate, 4 to 12 parts of chitosan and 100 to 200 parts of water. Multiple dosage forms can be prepared from the above-mentioned raw materials, mainly comprising a gel, a dressing, etc. The functional dressing provided by the invention has the advantages of bacteriostatic action on a wound, promotion of wound healing and growth, adsorption of a small amount of tissue exudates, good biosecurity, waterproof performance, a bacterium blocking effect, etc. The functional dressing has a wide application scope, is applicable to mechanical trauma and operative incision (wound) and exerts a good therapeutic effect on hard-healing wounds like burns and scalds, diabetic foot, ulcer and pressure sores and a good curative effect on an infectious wound and a delayed union wound.

The invention relates to cement concrete surface repairing material which is in particular applicable to the thin layer repairing of the cement concrete road surface. The invention consists of resin, portland cement, rapid hardening sulfur aluminium salt, dry river sand without soil, 40 to 70 item quartz sand, gray desert powder and swelling extender. The invention is divided into repairing material first component and repairing material second component during the actual use, the invention is evenly mixed when being used by cooperating with manual knifing or mechanical knifing. The usage method is cooperated with the use of the surface paint and the base paint when the repairing material is used. The use procedure also comprises the clearing preparation before the road surface repairing and the surface treatment after the repairing. The invention solves the problems that the repairing of the thin layer of the cement concrete road surface easily falls off and the durability is not good, simplifies the construction craftwork and assures that the traffic can be quickly recovered on the premise of the use capacities of the road surface.

The invention discloses a heavy-metal-polluted acidic soil repairing material as well as a preparation method and application thereof. The repairing material is prepared from the following raw materials in percentage by weight: 10-20% of biomass electric power plant ash, 10-20% of slag powder, 10-30% of steel slag powder, 5-10% of fly ash and 25-50% of bentonite by uniformly mixing in a dry powder state. The preparation method comprises the following steps of: firstly, drying the raw materials until the water content is smaller than or equal to 1%; then, respectively weighing the raw materials according to the percentage by weight; and finally, uniformly stirring. The in-situ repairing of heavy-metal-polluted acidic soil is achieved by covering a layer of repairing material on the soil surface, uniformly mixing the soil surface layer with the repairing material in plowing and stirring modes, and detecting the contents of Cd, Pb, Cr, Cu, Zn, Mn, Hg, As and Ni in the repaired soil and the soil pH value after 3-6 months until meeting the requirements of the second-level soil environment quality standard in GB15618-1995.

A hybrid prolapse repair material comprising a polypropylene and a graft body attached together. Attachments are provided for detachably attaching a repair material to a needle. A needle and a system for using the needle are contemplated to get repair material closer to the ischial spine. Graft to arm attachment concepts are taught to couple a mesh to a graft body. Additionally, a hysterectomy tool is provided to allow a surgeon to track vital organs.

The invention discloses a skin burn repair material and a preparing method thereof, and belongs to the field of biomedicine. A functional loading substance is added into a polymer to prepare the repair material through the coaxial electrostatic spinning process, and the upper surface layer micro-nano structure is adjusted so that the repair material can resist adhesion of outside microorganisms and bacteria. The prepared repair material containing the functional loading substance with antibacterial, antiphlogistic and repair promoting functions repairs the skin burn area in a targeted mode based on the characteristics of different stages of the burnt skin repair process. The adopted base material has high biocompatibility, secondary damage to the wound region of traditional medical gauze when fresh dressing is changed for a wound is avoided, and secondary infection caused by external factors can be effectively resisted. The skin burn repair material and the preparing method thereof can be effectively applied to biomedicine related fields and have the possibility of extensive clinic application.

A method for repairing components comprises the steps of providing a component having a defect to be repaired and depositing an aluminum containing repair material over an affected area on a surface of the component so that the repair material plastically deforms and bonds to the affected area upon impact with the affected area and thereby covers the affected area.

The invention discloses a preparation method of medical porous titanium and titanium alloy, which comprises the following steps: proportionally preparing titanium powder, alloy element powder and pore forming agent powder according to needs; carrying out ball milling, mixing and mechanical pressing by a powder metallurgy blank making technique to obtain a blank; putting the blank in a thermal insulation barrel, and putting the thermal insulation barrel into a microwave sintering furnace; and after vacuumizing the furnace chamber to a vacuum degree of 0.1Pa, charging argon with the purity of 99.999% to form cyclic protection, controlling the output power of the microwave sintering furnace at 0.5-3kW, heating to the sintering temperature of 800-1200 DEG C at the heating rate of 5-40 DEG C/minute, keeping the temperature for 5-30 minutes, shutting down the microwave source, and carrying out furnace cooling to obtain the medical porous titanium and titanium alloy. The invention has the advantages of simple preparation method, short sintering period, high efficiency, low sintering temperature and low energy consumption; and the sintered porous titanium and titanium alloy have excellent mechanical properties, and can be used as alternate repair material for bones, joints, artificial radix dentis and other hard tissues.

The invention discloses an anti-impact and wear-resistant mortar, belonging to the field of a repairing material in water-power engineering. The difficulty that the constructions in the conventional water-power engineering is difficult to repair after being damaged by rushing and abrading with water with sands and stones can be solved. The anti-impact and wear-resistant mortar comprises the following components in parts by weight: 39-48 parts of silicate cement, 45-50 parts of graded hard fine aggregate, 0.05-0.25 parts of water reducing agent, 0.05-0.3 parts of de-foaming agent and 0.05-1.5 parts of nanometer material. The anti-impact and wear-resistant mortar provided by the invention has the advantages of high anti-impact and wear-resistant strength, low elasticity modulus and good anti-crack property, and is a finished product material with a higher application value for repairing through irrigation works.

The invention provides a high-strength collagen base artificial bone repair material which can be used for repairing the bone defect of bearing parts of a human body. The high-strength collagen base artificial bone repair material has chemical composition and structure formed by self-assembly of nanometer calcium phosphate and collagen molecules, so that the high-strength collagen base artificial bone repair material has a biomimetic mineralization structure similar to the natural bone tissue of the human body. In terms of mechanical properties, the material has the mechanical strength similar to that of the cortical bone of the human body and can be used for repairing the bone defect of the bearing parts of the human body. The invention also provides a preparation method of the high-strength collagen base artificial bone repair material.

The invention relates to a calcium magnesium RH dip pipe hot spray repair material used for high-performance smelting silicon steel and a preparation method, and is characterized in that the invention adopts high-purity magnesium gravel and synthesis magnesium calcium as main components; more than one of organic addition agents of woodiness calcium sulphonate, modified starch ether, and the like are used in composite mode to substitute low-melting harmful plasticizers of soft clay, water glass, and the like used by conventional spray repair material to realize good spray repair adhesiveness and good high-temperature performance of the spray repair material. The invention uses two ultra fine powder of ultra fine MgO micro powder, SiO2 micro powder and calcium hydroxide micro powder in composite mode to act slushing enhancement effect, further improves adhesiveness and agglutinating property of the material, and enhances high temperature strength of the material. Provided spray repair material has high hot strength, good high-residue erosion resistance performance and good molten steel erosion resistance performance; spraying and repairing a dip pipe can make the service life be more than one furnace when a RH device smelts low sulphur special silicon steel, thus satisfying the requirements of the smelting of the special silicon steel.

The invention discloses a preparation method of materials which are used for bone plates, bone nails and bone blocks, including the following steps: biomedical fiber, hydroxyapatite, polylactic acid and compatibilizer are arranged at a twin-screw extruder or a torque rheometer for melt blending; or the polylactic acid and the hydroxyapatite which is grafted by using the polylactic acid macromonomer are dissolved in chloroform, the biomedical fiber is added for even dispersion, and the thin film can be obtained by vacuum drying after the volatilization of the chloroform; or the polylactic acid and the biomedical fiber are woven into mesh structure, then the mixed solution of hydroxyapatite powder which is grafted by using the polylactic acid macromonomer and the polylactic acid is added, and the vacuum drying is carried out after the volatilization of the solvent; finally, the materials which are obtained by the method are done with the pressing forming on a flat sulphuration machine or done with the injection forming by using a precise injection machine. The preparation method of the materials which are used for the bone plates, bone nails and bone blocks of the invention has strong practicality, easy industrial production and can significantly improve the mechanical properties of the bone repair materials.

The nanometer vibration-reducing and noise-reducing self repairing material is prepared with nanometer level metal powder and natural ore powder as main material and through adding several kinds of supplementary material and certain technological process, and is added into lubricating oil or ultrasonic medium as high performance repair material. The present invention features that the high performance repair material can create high hardness self-repairing lubricating film fast on the surface of metal friction pairs to regulate the interval of the friction pair, reduce friction coefficient, raise bearing capacity, leveling the friction surface, reduce vibration and noise caused by the unbalance, friction and damage of the moving machine parts, and prolong the service life of the machine parts. The present invention may be used widely in improving performance of mechanical friction parts.