637 results about "Deformity" patented technology

An intramedullary lockable compression screw for stabilization and reconstruction of deformities of the ankle and subtalar joints, and which is particularly suitable for stabilization and fusion of the tibiotalar, talocalcaneal, tibiocalcaneal and / or tibiotalocalcaneal, is provided. The compression screw includes an elongated tubular member extending along a substantially straight first longitudinal axis between the leading end and the trailing end of the member. The tubular member includes a threaded leading end portion proximate the leading end, a threaded trailing end portion proximate to the trailing end, and an unthreaded shaft portion interconnecting the threaded leading end and the threaded trailing end portions. The diameter of the threaded leading end portion is smaller than the diameter of the threaded trailing end portion. A through-hole extends along a straight second longitudinal axis between a first opening, in a first area of an outer periphery of the tubular member proximate to the trailing end, and a second opening, in a second area of the outer periphery of the tubular member distal to the trailing end. The through hole is formed such that the second longitudinal axis intersects the first longitudinal axis at an angle of other than 90 degrees and so as to accommodate a locking screw.

An improved flexible component used for dynamic stabilization of spinal segments for the treatment of vertebrae deformities and injuries and for the replacement of a complete or segment of the body of a vertebra in the spine is described. The flexible component is comprised of a solid, suitable implant material with a longitudinal bore the entire length and an appropriately formed slot which extends spirally around the shaft either continuously or segmentally. The flexible component may be encapsulated, fully or partially, in a suitable implant grade elastomeric resilient material. When used for a dynamic stabilization device, the component is attached to the vertebral bodies by pedicle screws know to those in the art. When used as a vertebral replacement device, attached to the component's opposite ends are members for attachment to the adjacent vertebra that allow for height and angular adjustment.

Embodiments described herein relate to a method and system for dynamic spinal fixation for the correction of spinal deformities, and more specifically pertains to a method and system permitting a correction of spinal deformity without rigid fixation of the vertebral bodies. The embodiments are useful in correcting spinal deformities, including all types of scoliosis or other misalignments affecting the vertebral column. The positioning of devices and elements permits a gradual correction of a three dimensional spinal deformity through operative intervention and / or the natural growth of the vertebrae and spinal column.

A unilateral external fixator device that allows for gross manipulation and fine adjustment of deformities in six degrees of freedom. The device may comprise a strut assembly and two compound movable joints, one at each end of the strut assembly. One compound movable joint may comprise two revolute joints, each containing a gear reduction mechanism and may rotate about the strut. The second compound movable joint may contain two revolute joints, each containing a gear reduction mechanism, and may move along the length of the strut assembly. The gear reduction mechanisms may comprise helical spline assemblies that allow for gross and fine adjustment of the fixator.

A system for correcting a spinal deformity includes an implant fixed to one side of a vertebra and a rod extending along an axis of the spine on a second side of the vertebra. An adjustment member, which may include a reel, is coupled to the rod. A force directing member, such as a cable, extends between the rod and the adjustment member. The force directing member is retractable toward and extendible from the adjustment member. A method of correcting spinal deformity includes providing an implant, a rod, an adjustment member coupled to the rod, and a force directing member extending between the rod and the adjustment member. The adjustment member can be retractable toward and extendible from the adjustment member.

The various embodiments disclosed herein relate to implantable devices for the treatment of structural bone and joint deformity, including hallux valgus. More specifically, the various embodiments include systems, devices, and methods for implantation of an implantable device having at least one bone anchor with deployable prongs for treating such deformity.

The various embodiments disclosed herein relate to implantable devices for the treatment of a structural bone and deformity. More specifically, the various embodiments include systems, devices, and methods for implantation of a flexible or tension band for treating such a deformity, including hallux valgus.

An external fixation system for connecting one or more bone segments together to facilitate healing of bone. The system may include one or more rings and / or ring segments. One or more linear distractors and / or angular distractors may connect the rings to each other so as to allow for distraction and / or reduction / compression of a bone. Linear distractors may enable an operator to move the rings towards and away from each other, while angular distractors may enable an operator to angle the rings relative to each other. In an embodiment using angular distractors, one or more angular separation assemblies may be positioned between the rings. These separation assemblies may have joints which may two portions which may be angled relative to each other and connected directly or indirectly to the rings. Various fasteners (e.g., nuts) and / or tightening members may configured for quick movement along and selective tightening to various components. Moreover, clamps may be attached to the rings and may engage pins, wire, rods, which may be inserted into bone to hold bone segments to each other. The components of the external fixation system may be provided in sets or kits so that the a surgeon may select various combinations of components to create an external fixation system which is configured specifically for the particular needs of a patient and the bone fracture / deformity.

Methods and apparatus for incrementally manipulating an internal body member of a patient are disclosed. The apparatus has a magnetic implant adapted to be received on a location of the body member, a platform external to the patient, and a magnetic member coupled to the platform, wherein the magnetic member generates a magnetic force between the implant and the platform to incrementally manipulate the body member. The implant and external magnetic member are preferably rare earth magnets or an array of rare earth magnets, and are configured to generate an attractive or repulsive force between the implant and the platform to reposition, reorient, deform, or lengthen the body member.

An external fixation system for connecting one or more bone segments together to facilitate healing of bone. The system may include one or more rings and / or ring segments. One or more linear distractors and / or angular distractors may connect the rings to each other so as to allow for distraction and / or reduction / compression of a bone. Linear distractors may enable an operator to move the rings towards and away from each other, while angular distractors may enable an operator to angle the rings relative to each other. In an embodiment using angular distractors, one or more angular separation assemblies may be positioned between the rings. These separation assemblies may have joints which may two portions which may be angled relative to each other and connected directly or indirectly to the rings. Various fasteners (e.g., nuts) and / or tightening members may configured for quick movement along and selective tightening to various components. Moreover, clamps may be attached to the rings and may engage pins, wire, rods, which may be inserted into bone to hold bone segments to each other. The components of the external fixation system may be provided in sets or kits so that the a surgeon may select various combinations of components to create an external fixation system which is configured specifically for the particular needs of a patient and the bone fracture / deformity.

The invention relates to a method for preparing a biomaterial of acellular small intestinal submucosa, which comprises the steps of preposition treatment, acellular treatment, enzyme treatment, preparations of membranous products and particle products. Compared with the prior art, the biomaterial has higher bioactivity and biocompatibility, no obvious immune rejection and no toxic effect on cells; besides, the biomaterial has a certain mechanical strength and toughness, and variable shape, size and thickness, thereby being convenient for clinical suturing and fixing. At the same time, the preparation method has the advantages of unlimited raw material source, cell-free residues, no ethical issues and being capable of effectively inactivating virus. The prepared products are applicable to the biomedical engineering fields, such as repairing defections of body tissue, serving as tissue filling materials, repairing facial depression deformity, serving as tissue reinforcements to replace fascia, repairing membranous defections and malnourished and infected surfaces of wound, serving as materials for biodegradable stents, and serving as injectable filling materials.

Disclosed herein are novel liquid delivery catheters, and methods and kits implementing the same. The disclosed catheters are particularly useful for localized delivery of a liquid caustic agent to treat various defects associated with malformations and injuries resulting in chronic or acute bleeding, or to ablate tumors, occlude fistulae or other luminal structures. The disclosed devices have uses in a number of medical disciplines, and specific examples are provided pertaining to treatment of defects, malformations, and injuries, or bleeding due to medical procedures, in and along the gastrointestinal tract.

A scoliosis correction device includes a first fixed anchor that is adapted to be secured to a vertebra of a spine and a second fixed anchor that is adapted to be secured to a vertebra of a spine. A rotatory anchor includes a head portion, a shank portion that extends from the head portion and is adapted to be secured to a vertebra of a spine, and a sprocket that is supported on the head portion for rotational movement relative thereto. A cable extends from the first fixed anchor to the rotatory pedicle screw to the second fixed anchor. The rotatory anchor may be configured to allow unidirectional movement of the sprocket relative to the head portion. A rigid member may extend between the fixed anchor and an intermediate anchor.