633 results about "Deformity" patented technology

A surgically implanted spinal stabilization system uses posterior anchor hooks attached to vertebrae to retain elastic bands to retain flexibility and mobility while maintaining alignment and preventing excessive motion and deformity. The elastic bands may parallel the longitudinal axis of the spine, or, for enhanced promotion of alignment, they may also arranged in a diagonally crossing configuration. Multi-level fixation can be achieved using the spinal stabilization system with longer elastic bands. A method of applying the spinal stabilization system using an elastic band application tool facilitates simple, rapid application of the system to a patient.

Spinal anchoring methods and devices are provided that are effective to correct spinal deformities while allowing some flexibility to the spinal. In particular, the methods and devices allow a spinal fixation element to mate to several adjacent vertebrae to maintain the vertebrae at a fixed distance relative to one another, yet to allow the orientation of each vertebrae relative to the fixation element to adjust as the orientation of the patient's spine changes.

Implantable devices and methods for correcting spinal deformities or degeneration are disclosed. The devices and methods have particular application in the spinopelvic region and on the sacrum or ilium. In one embodiment, a cross connector is provided and can include a cross member with a connector head slidably disposed thereon. The cross member can be adapted for attachment to one or more anchoring elements, and the sliding connector head can include a first receiving portion defined by an opening through the connector head for receiving the cross member, and a second receiving portion defined by a recess between first and second opposed arms for receiving a spinal fixation element, such as a spinal rod. A guide channel can optionally be provided on the cross member for guiding the movement of the sliding connector head. In other embodiments, the device can include a locking mechanism for locking a spinal fixation element within the connector head, and for securing the connector head in place on the cross member.

The present invention provides a method of repairing a tympanic membrane deformity, such as a tympanic membrane perforation, commonly referred to as tympanoplasty or myringoplasty, using a collagen biofabric. The collagen biofabric is preferably laminated. The invention further provides kits comprising one or more pieces of collagen biofabric, for example laminated collagen biofabric, for the repair of a tympanic membrane.

An orthosis for correcting spinal deformities by urging spinal vertebrae toward a vertical axis. The orthosis includes a series of retaining clamps fixed onto the spinous process of said vertebrae, each of said retaining clamps having guides for retaining at least one elastic rod.

A prosthesis for repairing a damaged valve such as a heart mitral valve is disclosed. The prothesis comprises a prosthetic valve leaflet mounted on a frame. When implanted in a mitral valve, the leaflet replaces the function of an endogenous valve leaflet and coapts with an opposed endogenous valve leaflet. The prosthesis may further comprise a strut or other member to which the edge of an opposed valve leaflet can be sutured, and which can be used to correct deformities of a ventricle wall. Further disclosed is a method of repairing a damaged heart valve by providing a prosthetic valve leaflet or by providing a prosthetic valve leaflet and prosthetic attachment points for an opposed valve leaflet.

A spinal correction element in a device and method of correcting spondylolistheses in a patient transitions between a first shape and a second shape while having a first portion fixed to a forwardly displaced vertebra and a second portion fixed to an undeformed portion of the spinal column to apply a corrective force bringing a displaced vertebra into alignment with the rest of the spinal column. A shape memory material in the spinal correction element transitions from a flexible martensitic state, in which the spinal correction element matches the shape of the deformity caused by the spondylolistheses, to a rigid austenitic state, in which the spinal correction element has the shape of an expected corrected spine, to apply a corrective force to the vertebral bodies fixed to the spinal correction element, thereby correcting the deformity caused by spondylolistheses. The shape memory material is induced to transition between the rigid austenitic state and the flexible martensitic state by changing the temperature, pressure, stress, chemistry and/or another parameter of the shape memory material.

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 present invention provides an implantable joint prosthesis configured to replace a natural joint, and methods for implantation. The prosthesis may include a first component implantable in a first bone, having a first bearing surface, and a second component implantable in a second bone, having a second bearing surface which corresponds to the first bearing surface. Each bearing surface may include a flattened section such that when the bearing surfaces are placed in cooperation with one another in a preferred orientation, the flattened sections are aligned. Alternatively, the bearing surfaces may have and asymmetric configuration, with non-congruent surfaces that may enable correction of deformity. Several types of implantable joint prostheses are disclosed, including: carpometacarpal, metacarpophalangeal, metatarsophalangeal, distal interphalangeal, proximal interphalangeal, ankle, knee, shoulder, and hip.

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 orthopedic device and method for correcting angular deformation of a bone structure having a growth plate. The device includes first and second hinge members connected together at a hinge joint. The device is adapted for mounting the orthopedic device to the bone structure with the pivot joint positioned over the growth plate. Alignment of the pivot joint with the growth plate promotes asymmetric growth of the growth plate to thereby correct the angular deformation.

The present invention provides a medical device for reducing a rod towards a bone fastener, the medical device having a shaft defining a proximal end and a distal end, where the shaft further defines a first threaded portion. A gripper assembly may be coupled to the distal end of the shaft, where the gripper assembly is engageable with the bone fastener. The medical device also includes a slide element slideably disposed on the shaft and coupled to the gripper assembly, with the slide element defining a second threaded portion. A pusher element is slideably coupled to shaft, whereby the pusher element defines an aperture engageable with the rod. A shaft grip can be rotatably engaged with the first threaded portion of the shaft, and the shaft grip can abut at least a portion of the pusher element. The medical device can also include a jaw nut coupled to the shaft, with the jaw nut rotatably engaging the second threaded portion of the slide element, as well as a lever assembly pivotably coupled to the shaft, the lever assembly defining a rod channel engageable with the rod, and further including a latch mechanism for releasably securing the lever assembly to the shaft.

This invention relates to an implant to be inserted in the disc space between two adjacent vertebrae for the correction of the vertebral spine curvature. The configuration (lateral view) of the invention is basically a wedge or acute-angled isosceles trapeze, wherein the area opposite the shorter base or opposite to the vertex is a rounded pyramid-like surface, and the upper and lower surfaces of the trapeze include fixation protuberances to the vertebral plates of the adjacent vertebrae.

Deformities present on the end of a bone, for example the end of the metatarsal bone making up part of the metatarsocuneiform joint, can lead to deformities such as bunions. These deformities are treatable with an implant that comprises a plate with a wedge extending perpendicular from the plate. Following removal of cartilage from the joint, deformed portions at the end of the bone are removed and the wedge is inserted in the joint and held in place when the plate is attached to the bones flanking the joint. This effectively fuses the two bones together. The wedge can be shaped in various ways depending on the particular deformity present.

The invention discloses a gait phase detection apparatus with ankle joint angle self-rectification function, which comprises a shank fixing mechanism, a ankle joint angle control mechanism, a ankle joint angle measuring mechanism and a thenar pressure measuring footwear. The invention can control ankle joint motor rotation angle according to thenar pressure signal, regulate ankle joint angle for foot drop patient in weight reduction walking training, prevent the damage to foot due to the towing and impacting caused by foot drop, and improve the dorsiflexion ability of foot drop patient; a pressure sensor and an angle sensor collects thenar pressure signal and ankle joint angle signal timely, an upper computer performs fuzzy logic algorithm to realize to detect gait phase smoothly and submissively. patient with walking ability defects or normal person with some degree of gait deformity can wear the invention while walking, detect the gait phase information in walking, estimate gait recovery degree scientifically, and optimize gait training strategy.

A graft for facilitating treatment of a deformity in a blood vessel wall includes a tubular body defining a first end and an opposing second end. At least a portion of the tubular body includes a hydrogel material configured to expand upon exposure to moisture.

Image analysis methods for gleno-humeral joint morphology. At least one specific structure is approximated as an elliptical structure at a plurality of transverse sections. At least one pathological feature on the structure is recognized. At least one structural spatial property of a 3D structure is calculated based on the structural property of the elliptical structure, thus determining the morphology of the 3D structure. Structural deformities are evaluated according to the morphology of the 3D structure. The pathological features on the sections are integrated to obtain at least one 3D pathological feature property, and a treatment is determined accordingly.