37 results about "Disc repair" patented technology

A sterile implant for treatment of a spinal disc defect comprising an allograft cortical bone demineralized to a Type I collagen having a specific shape which is treated to eliminate osteoinductivity. The implant is lyophilized and compressed into smaller first shape which 20 to 80% from its original shape in at least one dimension and hardened. The implant expanding when hydrated into a second shape having the shape memory of the first shape and expanded in dimensional size from the first compressed shape.

The present invention provides methods and devices for annulus disc repair with and without the use of a patch or stent. The methods and devices are particularly suited to the repair and / or reconstruction of the spinal disc wall (annulus) after surgical invasion or pathologic rupture, with reduced failure rate as compared to conventional surgical procedures.

A composition for spinal disc repair comprising a plurality of uniformly shaped demineralized cancellous bone pieces ranging in size from about 2.0 mm to about 4.0 mm loaded into a porous mesh container with the cancellous bone pieces being treated so that they are not osteoinductive and are packed in the porous mesh container under compression forces.

A composition for spinal disc repair comprising a plurality of uniformly shaped demineralized cancellous bone pieces ranging in size from about 2.0 mm to about 4.0 mm loaded into a porous mesh container with the cancellous bone pieces being treated so that they are not osteoinductive and are packed in the porous mesh container under compression forces.

Methods of treating tissue defects, including defects such as bone fractures, vertebrae fusions, and spinal disc repair, using electric or electromagnetic fields and growth factors. In various embodiments, the present invention provides methods for the treatment of a human or other mammal subject in need thereof, by administering electric stimulation and growth factors to stimulate endogeneous stem cells in the subject to facilitate healing. Other embodiments include methods of administering electric stimulation, growth factors, and stem cells to the defect. In various embodiments the amount of growth factor is a subefficacious amount.

An automatic system for repairing scratches on optically-read discs, (e.g., compact discs often called "CD's" or DVD's). More specifically, an automatic system for refurbishing a plurality of disc surfaces at substantially the same time, such that when refurbished, an optical reader, which uses a laser to read digital information stored on such a disc, can read the digital information on the disc without the optical distortion caused by a scratch.

A disc repair system embodied by a consumer kit, which is provided for the purpose of consumer-repairing of scratches on optically-read discs (e.g., digitally recorded discs, known commonly, as "CD" discs or "DVD" discs, containing audio or video or other formats of data information), such that an optical reader, which uses a laser to read digital information stored on a compact disc, can read the digital information without the optical distortion caused by a scratch. The consumer kit (in a special box package) contains a hand-held rotator which is preferably used in combination with abrading compounds, abrasive discs, and wiping cloths to recondition the disc surface.

The invention discloses a powder extrusion device for grinding disc repair. The device comprises a stirring barrel; a driving motor is fixedly connected to the top of the stirring barrel; a rotating shaft is arranged in the stirring barrel; the top of the rotating shaft is connected with a driving motor; the bottom of the rotating shaft is rotationally connected with the inner wall of the stirringbarrel; a supporting frame is fixedly connected with the rotating shaft; stirring rods are respectively hinged to the upper end and the lower end of the supporting frame; threads are uniformly distributed on the rotating shaft; an extruding plate sleeves the rotating shaft; the extruding plate is in threaded connection with the rotating shaft; the extrusion plate is in sliding connection with theinner wall of the stirring barrel; an electromagnetic valve is arranged on the extrusion plate; the electromagnetic valve is electrically connected with an outer side control system; and the bottom of the rotating shaft is fixedly connected with a stirring shaft. The stirring efficiency of powder is greatly improved in the use process of the device; and the stirring rod swings up and down, so that the stirring range of the powder is enlarged, and the mixing degree of the powder is improved. The device moves downwards through the extrusion plate in the using process, the powder is pressed out,so that discharging is facilitated, and convenience is provided for use of people.

The invention discloses a copper disc for sapphire polishing. Grinding grooves in a spiral or concentric circle shape are formed in an annular surface of the copper disc, and stepped grooves are formed in an annular outer ring and an inner ring of the copper disc. The invention further discloses a disc repair method of the copper disc for sapphire polishing. The disc repair method specifically includes the following steps that firstly, an upper copper disc and a lower disc turning tool or a lower copper disc and an upper disc turning tool are horizontally moved, and the turning tools are aligned to the original positions of the grinding grooves in the corresponding copper discs; secondly, the upper copper disc and the lower copper disc are controlled to rotate at the same rotation speed in the opposite directions, the turning tools are fixed and not moved, the upper copper disc or the lower copper disc is controlled for transverse feed, and corresponding grinding grooves are turned through the turning tools; thirdly, the turning tools are moved away, and the surfaces of the corresponding copper discs are flushed. According to the copper disc, the surfaces of the copper discs can be evenly abraded, and machining quality of sapphire panels is guaranteed. According to the disc repair method, the grinding grooves in the copper discs can be quickly finished, and production efficiency is effectively improved.

A method of expanding and / or repairing an intervertebral disc by applying stem cell material in the disc. Stem cells can be undifferentiated cells, or they can be cells that have differentiated but subsequently dedifferentiated. Stem cells can be induced to express at least one characteristic of human intervertebral disc cells, such as fibroblasts, chondrocytes or dorsal cells, by exposing them to agents and / or environments that induce the desired differentiation. In some embodiments, the stem cell material can be provided along with a collagen-based material, which can be a collagen-rich lattice. Stem cell material can be provided as a stem cell isolate, which can be substantially free of non-stem cell material. Other therapeutic agents can be administered with the stem cell material.

Arising from the discovery that a non-immunogenic poly-synthetic bioadhesive based on polyphenolic proteins produced by sandcastle worms (Phragmatopoma californica) may be used to anneal tears of the meniscus and annulus fibroses and repair spinal disc herniations, herein disclosed are suture-less meniscal and disc repair devices, systems and methods that may be implemented least invasively, in fluid filled or dry / semi-dry environments using simple instrumentation and without the need for suturing or the placement of anchors. The present invention is less technically demanding for the practioner and thus expected enhance outcomes and represent a distinct advancement over prior art techniques presently available.

Therapeutics and methods of treatment to repair, preserve and grow cartilage are presented. In addition, systems and methods for delivering a therapeutic to a hard to reach anatomical area, such as, for example, the BCI, are presented. A cannulated delivery device provided with a cutting tip, cutting flutes and threads on its distal end is disclosed, as well as therapies for joint and cartilage repair, preservation and generation using it. Alternatively, for disc repair, a “PIARES” device for Percutaneous Intradiscal Annular Repair introduces therapeutics intradiscally. The device may have two-needles; a first cannula / needle with a finger grip, and a longer inner needle to penetrate through the outer needle into the disc, and introduce therapeutics via a syringe. When provided with a septum at the inner needle's proximal end, the PIARES device is a completely closed system; using it minimizes trauma.

The invention relates to a method for repairing the disc shear blade via built-up welding, comprising following steps: (1) removing abraded edge to process it into disc shear blade base plate with D1 diameter; (2) acid cleaning derusting; (3) using carbon steel to prepare disc repair element whose outer diameter is D2, inner diameter is D1 and the thickness is same with base plate while the D2-D is 12-30 mm and the two surface of inner edge has annular grooves; (4) integrating the repair element and base plate; (5) preheating the welding bar and using the metal comprising W, Mo, V, and Cr to built-up weld welding bar; (6) preheating the integrated disc shear blade; (7) processing several built-up welding to repair the grooves of inner edge; (8) keeping disc shear blade in 450-550Deg. C for 0.8-1.2 hours; being cooled to 10-30Deg. C; keeping it in 480-560Deg. C for 0.8-1.2 hours to be tempered; (9) processing mechanical machining to attain repaired disc shear blade with smooth surface and D outer diameter, while it has better rigidity and abrasion resistance. The inventive shear blade has same machining ability with new blade, while it utilizes waste blade to reduce the producing cost.

Therapeutics and methods of treatment to repair, preserve and grow cartilage are presented. In addition, systems and methods for delivering a therapeutic to a hard to reach anatomical area, such as, for example, the BCI, are presented. A cannulated delivery device provided with a cutting tip, cutting flutes and threads on its distal end can be provided. Using such an exemplary device, various novel therapies for joint and cartilage repair, preservation and generation can be implemented. Alternatively, for disc repair, a delivery device directed to percutaneous intradiscal annular repair, or “PIARES” device can be used to introduce therapeutics intradiscally. The device may have two-needles, with a first cannula / needle, with a finger grip at its distal end, and a longer inner needle to penetrate through the outer needle into the disc, and introduce therapeutics, for example, via a syringe. When provided with a septum at the inner needle's proximal end, the PIARES device is a completely closed system, and its use minimizes trauma.