42results about How to "Correction of deformities" patented technology

A system comprised of custom radiographically designed tibial and talar cutting guides, a tibial reaming guide and bit, and instrumentalities for use in total ankle replacement surgery and a computer-based system and method for making the custom radiographically designed tibial and talar cutting guides.

The present invention generally relates to methods and device for treatment of spinal deformity, wherein at least one tether is utilized to maintain the distance between the spine and the an ilium to (1) prevent increase in abnormal spinal curvature, (2) slow progression of abnormal curvature, or (3) impose at least one corrective displacement and / or rotation.

A bone anchoring assembly for use in spinal surgery or trauma surgery includes an anchoring element having a shaft and a receiving part having a substantially U-shaped cross-section with a base connected to said shaft and two free legs forming a channel for receiving a rod having an at least partially structured surface. The bone anchoring assembly further includes a locking member cooperating with the receiving part for locking said rod in the channel. At least on the locking member or in the receiving part an engagement portion for engaging said structured surface of the rod is provided. The locking member, the rod and the receiving part cooperate in such a manner that as soon as the engagement portion comes into engagement with the structured surface the rod is held in the receiving part in a form-locking manner preventing movement of the rod.

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.

An implant for performing interbody fusion within a human spine, inserters for such an implant, and associated methodology. The implant is preferably formed in situ from at least two separate but lockable members (a base member and a closure member). The base member may be implanted into an interbody space first, after which the end plates may be finally prepared and the base member packed with fusion promoting substances before engaging and locking the closure member. The closure member provides structural support for the adjacent vertebral bodies (along with the base member) and may be selected after implantation of the base member having a specific length, width, height, taper, etc. . . . to ensure an optimal sizing of the implant for desired restoration of disc height, coronal taper, sagittal taper, etc. . . . .

A spinal fixation device includes a fixation rod including a body having an aperture formed therethrough. First and second vertebral fasteners are secured to the body and are adapted to be secured to respective vertebrae. A third vertebral fastener extends through the aperture in the body of the fixation rod and adapted to be secured to a vertebra.

An external fixation device includes a frame assembly having a first arc segment and a second arc segment. The first arc segment is for interconnection to a first bone portion. The second arc segment is for interconnection to a second bone portion. The first arc segment is coupled to the second arc segment for relative rotation. The external fixation assembly additionally includes an articulating module. The articulating module includes a central member, a first pivot segment and a second pivot segment. The first pivot segment is coupled to the central member for driven rotation about a first pivot axis. The second pivot segment is coupled to the central member for driven rotation about a second pivot axis. The second pivot axis is substantially perpendicular to the first pivot axis.

Custom radiographically designed tibial and talar cutting guide system and instrumentalities including a tibial cutting guide position verification device is disclosed. A computer-based system and method for making the custom radiographically designed tibial and talar cutting guides is also disclosed. Further disclosed is an adjustable tibial reaming guide positioning system for allowing a position for reaming of a distal tibia to be adjusted during total ankle replacement surgery and, particularly, during total ankle arthroplasty for prostheses with an intramedullary stem.

A method and devices for placing spinal implants including placing the implants completely within a spaced defined between adjacent vertebral bodies where the implants are supported by the cortical bone of the vertebral bodies. An insertion instrument places the implants in pairs with a variable-sized space placed in between. The implants are made of a biocompatible material and are particularly suited for anterior lumbar interbody fusion surgery. The spinal implants used to facilitate spinal fusion, correct deformities, stabilize and strengthen the spine.

A targeting apparatus for the correction of the deformity in proximal femur of a child is disclosed and includes a retention assembly; a cylindrical nail retention member tapered toward its half-spherical bottom end and including an upper through hole, a lower through hole, and a top cavity having inner threads for releasably secured to the retention assembly; a first locking nail including a forward threaded portion, an enlarged head, and a retaining recess in the head thereof; and a second locking nail including a forward threaded portion, an enlarged head, and a retaining recess in the head thereof. The invention has the advantages of reducing the area of wound when implanting the locking nails in the femur and saving labor during surgery.

A bone plate used in conjunction with various procedures to correct certain deformities, such as a Latarjet procedure. The bone plate is provided with a plurality of spikes having a truncated, pyramidal shape with a plurality of sides or faces that converge to a tip line. The height of each spike is of about 2.5 to about 3 mm. The design of the spikes allows the plate to stay in the right position by simply pressing the plate with the fingers on the bone or using a specific instrument (before the fixation holes are drilled and the fixation devices such as screws are secured). The bone plate may be provided with side, lateral faces that have a non-uniform width (i.e., a wedged profile) to allow for orthograde placement of the fixation device, even in the case of angled bone surfaces.

The invention discloses a complete set of positioning device for artificial total hip joint replacement, which belongs to the field of medical equipment. The positioning device is conducive to the accurate osteotomy of the femoral neck with the oscillating saw, the accurate positioning of the use direction of the acetabular file, the square head bone knife, and the medullary cavity file, and the insertion of the femoral prosthesis into the femoral marrow at the original position and original angle. The cavity is beneficial to preserve the femoral calcar and the length of the femoral neck, which is conducive to the correct placement of the acetabular cup, shortens the operation time, reduces intraoperative bleeding, improves the success rate of the operation, relieves joint pain, corrects deformity, restores and improves joint movement Function.

The invention provides a device and a method for exercising a user's leg whose lower leg tibial portion can be rotatably controlled during exercise. The device includes user-controlled rotatable drums connected to a sheet that surrounds a lower leg cuff for rotating and providing corrective forces on a user's knee joint during leg exercise. The device can be used with weight training equipment commonly found in commercial gyms, as well as in a user's home, or in clinics, to assist in rehabilitating malaligned knee joints.

The present invention relates generally to a device of and a method for correcting spinal deformities, such as scoliosis and kyphosis. The invention employs the superelasticity or pseudoelasticity, such as found in a nickel-titanium alloy, to provide a continuous, predictable, and controllable correction force and to achieve a gradual and full correction. The correction force can be exerted on the deformed spine either at the time of the spine surgery or after the surgery or both, to afford a full or substantially full correction. The continuous and controllable correction force of the present invention is safer than an instantaneous and large correction force applied only at the time of surgery. Additionally, the continuous and controllable correction force is capable of gradually and fully correcting the spinal deformities without any post-operative manipulation of the correction device or re-operation.

The invention provides a muscle and bone restoration bed and relates to a medical device bed. The problems that an existing bed is complex in structure and complex to operate, a bed board is of an integrated structure, excessive traction caused by misoperation occurs easily in the treatment process, irreparable damage is caused to a patient, and a medical treatment bed is large in size, expensive in cost and high in maintenance cost are solved. The muscle and bone restoration bed comprises a bed board support, an upper bed board horizontal driving device, a waist clamping belt, a waist tightening rod, a pull rod, a tightening positioning mechanism, a lower bed board reciprocating driving device, a first clamping device and two bed board frames. The lower end of each bed board frame can horizontally slide in two sliding rails, the upper bed board horizontal driving device is installed in the upper bed board frame and can drive the upper bed board frame to move horizontally in the sliding rails, and the lower bed board reciprocating driving device is installed in the lower bed board frame and can drive the lower bed board frame to perform reciprocating motion in the sliding rails. The muscle and bone restoration bed is used for muscle and bone traction restoration treatment.

A post-operative breast support system is provided for use following augmentation mammoplasty to prevent or correct implant migration. The support system includes a pair of straps which extend over the patient's shoulders, then cross one another at the patient's chest, then extend under opposite left and right breasts, then around the patient's back in opposite directions, and then forwardly around the torso to the front of the patient, wherein the ends of the straps are fastened or buckled. The straps have a width which prevents twisting. The fastener is adjustable, such that the tension and position of the straps can be quickly and easily set by the patient.

A spinal fixation system that utilizes the sublaminar approach is disclosed. Devices and methods describe herein generate a link with two secure attachments (one to the spine and one to the spinal fixation rod) that can be manipulated separately from one another.

Described herein are systems and methods in which a surgeon can use computer-implemented deformity assessment and correction tools to create 3D models of a bone. To ensure adequate healing, a surgeon may choose to use a prefabricated bone plate, a semi-customized bone plate, or a fully-customized bone plate to hold first and second bone portions in a corrected position. To select the appropriate prefabricated bone plate, the surgeon may identify three landmark locations on the first and second bone portions corresponding to desired fixation hole locations on the bone plate. The surgeon can then use a software application to evaluate multiple bone plate designs in a library and compare the average proximity of the landmark locations to fixation hole locations on each of the bone plate designs. Then, the surgeon can determine which bone plate design best fits the patient anatomy based on his comparison.

Spinal adjustment system including at least three implant modules, at least one of the implant modules being a first implant module including:means for engaging the first implant module with a first vertebra; andfirst force application means;characterised in that:the first force application means is adapted to engage with a second implant module engaged with a second vertebra superior to the first vertebra;the first force application means is adapted to also engage with a third implant module engaged with a third vertebra inferior to the first vertebra; andthe first implant module includes means of adjusting the force applied to the first vertebra by the first force application means.

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.

An interbody distractor and geometry trial instrument to measure a height and an angle for an associated implant includes a height handle and an expansion head coupled to the height handle that is adapted to be positioned in a vertebral body. A wedge sleeve is coupled to the expansion head, to control an angle of a first surface plate and a second surface plate of the expansion head when the wedge sleeve interacts with the expansion head. A wedge sleeve knob is adapted to drive the wedge sleeve linearly towards the vertebral body when the wedge sleeve knob is actuated. A height of the expansion head and an angle of the first and the second surface plate are measured to determine the height and the angle of the associated implant when the height handle and the wedge sleeve knob are actuated.

An interbody distractor and geometry trial instrument to measure a height and an angle for an associated implant includes a height handle and an expansion head coupled to the height handle that is adapted to be positioned in a vertebral body. A wedge sleeve is coupled to the expansion head, to control an angle of a first surface plate and a second surface plate of the expansion head when the wedge sleeve interacts with the expansion head. A wedge sleeve knob is adapted to drive the wedge sleeve linearly towards the vertebral body when the wedge sleeve knob is actuated. A height of the expansion head and an angle of the first and the second surface plate are measured to determine the height and the angle of the associated implant when the height handle and the wedge sleeve knob are actuated.

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.

The invention relates to a y-shaped branched chain external fixator for long bone deformity correction, the external fixator comprises a near-end ring, a far-end ring, a y-shaped composite branched chain and a spin adjusting assembly, the y-shaped composite branched chain is composed of a long branched chain and a short branched chain, and the short branched chain is connected with the top of a lead screw sleeve of the long branched chain through a hooke joint rotating base; the self-rotating adjusting assembly is arranged at the bottom of the far-end ring of the external fixator, so that an independent self-rotating degree of freedom is increased, and when rotational deformity needs to be corrected, the self-rotating adjusting assembly is adjusted firstly to correct the rotational deformity, and then deformity in other directions is corrected. By arranging the y-shaped branch chains and the self-rotation adjusting assembly, the capacity of correcting rotation deformity of the externalfixator is improved, interference and collision between the branch chains and between the branch chains and limbs during deformity correction are avoided, meanwhile, space 6-DOF movement can be achieved, and three-dimensional bone deformity in any space can be corrected.

The openable frame-type artificial vertebral body is used for correcting deformed spine, fixing and maintaining spine and reconstructing bone structure of spine in treating spine tumor, fracture, tuberculosis, malformation, etc. The frame-type artificial vertebral body has frame-type structure comprising a porous horseshoe shaped support plate and an adjustable upright, and has hydroxyapatite sprayed to the surface to raise biological performance and promote the formation of bone structure, one vertical bone screw and two transverse screws to form spine fixing stereo structure, and one central axle to create one mechanical environment favorable to bone survival and formation. The present invention has raised biological performance, simplified operation, reduced operation wound and less complication.

Provided is an elastic band for correcting a joint deformity and enhancing a joint function, the elastic band including: a first band to be attached to an outer part of a joint of a finger or toe and to the back of a hand or the top of a foot, and having a strip shape; a second band to be attached to an inner part of a last joint of the finger or toe while surrounding the inner part, and having a width increasing towards an end to surround side parts of the finger or toe together; and a connecting portion disposed between the first band and the second band to integrally connect the first band and the second band, and having a width gradually decreasing and then increasing from the first band towards the second band, and a mounting device of the elastic band.

The invention discloses an external fixation support for orthopedics department, and relates to the technical field of medical instruments. The external fixation support comprises connecting rings, adjusting mechanisms and kirschner wires, wherein the two connecting rings are arranged between the two adjusting mechanisms; the adjusting mechanisms comprise extension rod mechanisms, side adjusting mechanisms and rotary rapid adjusting mechanisms; two side adjusting mechanisms are arranged at the two ends of each extension rod mechanism, and each two side adjusting mechanisms are connected through one kirschner wire; and one end of each extension rod mechanism is provided with one rotary rapid adjusting mechanism, the side adjusting mechanism located at one end of each extension rod mechanism is connected with the corresponding rotary rapid adjusting mechanism, and each rotary rapid adjusting mechanism is connected with one end of one corresponding connecting ring. According to the support, bones at the two ends of a fracture position can be restored and aligned, the bones can rotate, the angles of the bones can be adjusted, and therefore bone malformation can be corrected; and then the external fixation support for orthopedics department has relatively high stability, is convenient to operate, and can be rapidly operated.