45 results about "Joint subluxation" patented technology

An acetabular shell liner having a variable rim surface geometry, which improves range of motion of the femoral component within the liner and decreases the incidence of dislocation and subluxation, and methods of making and using the acetabular shell liner. Prosthetic devices, more particularly hip joint prostheses, containing the acetabular shell liner having a variable rim surface geometry are also provided.

There is provided an acetabular shell liner, and particularly a constrained liner, having a variable rim surface geometry to improve the range of motion of a femoral component within the liner and decrease the incidence of dislocation and subluxation. There are also provided methods of making and using the acetabular shell liner. Prosthetic devices, and particularly hip joint prostheses, containing the acetabular shell liner having a variable rim surface geometry are also provided.

Devices, systems and methods are disclosed for repairing soft tissue. The surgical system allows for the creation of tissue repair by grasping, aligning and sewing or fixing tissue. For example, this system may be used for clipping together excessive capsular tissue and reducing the overall capsular volume. The deployment device includes a central grasping mechanism and an outer clip delivery system. The clip embodiments may be single or multi-component (penetration and locking base components) that penetrate tissue layers and deploy or lock to clip the tissue together. An example of the system is used to reduce the joint capsule tissue laxity and reduces the potential for subluxation or dislocation of the joint by either restricting inferior laxity (anterior or posterior) and resolving or eliminating pathologic anterior or posterior translation.

An artificial spinal joint, consisting of a flexible or rigid member or a pair of moveably-joined, flexible or rigid segments, is formed into a spring-like shape, whose distal ends have feet with slots through which screws can be inserted to attach the artificial joint to vertebra whose facets (joints) are non-functional. The artificial spinal joint is able to prevent subluxation of the spine, while retaining the mobility of the spine and permitting angular deflection of the vertebra above and below a non-functional spinal joint. A jig is used to position tools and make passageways for screws to attach the artificial spinal joint to the vertebra or its pedicles or facets in a minimally invasive procedure. The rigid members or segments are bio-compatible and may be made of titanium, a titanium alloy, tantalum, medical grade stainless steel or carbon fibers in a matrix of a rigid, durable plastic. The flexible members or segments may be made of spring steel coated with a durable, bio-compatible material, small diameter carbon fibers in a flexible, durable plastic matrix, or a single shape or dual shape, superelastic memory metal. The feet, made of any of the rigid or flexible materials described above, may also be moveably attached to the proximal ends of the members or segments. Having the feet moveably attached to the segments facilitates insertion of the artificial spinal joint into the body by folding the feet parallel to the axis of the segments during insertion, and then unfolding the feet for attachment to the vertebra or its pedicles or facets. The artificial spinal joint may be inserted and attached to vertebra whose facets are non-functional in minimally invasive, moderately invasive or conventional surgical procedures.

A method of treating shoulder dysfunction involves the use of a percutaneous, intramuscular stimulation system. A plurality of intramuscular stimulation electrodes are implanted directly into select shoulder muscles of a patient who has suffered a disruption of the central nervous system such as a stroke, traumatic brain injury, spinal cord injury or cerebral palsy. An external microprocessor based multi-channel stimulation pulse train generator is used for generating select electrical stimulation pulse train signals. A plurality of insulated electrode leads percutaneously, electrically interconnect the plurality of intramuscular stimulation electrodes to the external stimulation pulse train generator, respectively. Stimulation pulse train parameters for each of the stimulation pulse train output channels are selected independently of the other channels. The shoulder is evaluated for subluxation in more than one dimension. More than one muscle or muscle group is simultaneously subjected to a pulse train dosage. Preferably, the at least two dosages are delivered asynchronously to two muscle groups comprising the supraspinatus in combination with the middle deltoid, and the trapezious in combination with the posterior deltoid.

A method for treating shoulder subluxation using an implantable device to stimulate the axillary nerve which in turn activates sensory fibers to relieve shoulder pain and activates deltoid muscle to treat disuse atrophy and possibly augment any weakened voluntary movements. Known stimulation devices are either (1) external requiring surface electrodes or (2) implantable located directly into the deltoid muscle allowing stimulation of the proximate motor-points; each requiring relatively large stimulus currents and neither directly dealing with the pain resulting from the shoulder subluxation. In the present invention, a device is implanted via injection or open surgery proximate to the axillary nerve. Advantageously, the nerve branches into portions that stimulate the deltoid muscle and pass sensory signals. By stimulating the axillary nerve (1) a lower stimulus signal level can be used and (2) pain may be blocked while treating the atrophied deltoid muscle and augmenting weakened voluntary movements.

A shoulder sling is provided for the treatment of, for example, gleno-humeral dislocations and subluxations, capsular shifts, postoperative rotator cuff repair, postoperative Bankart procedures and soft tissue strains and repairs. The sling includes a support pillow abuts the wearer's torso, and a pouch that receives the wearer's arm. A plurality of straps suspend the pillow and pouch from the wearer's non-treatment shoulder. One of the straps prevents the pillow from shifting relative to the user, thus securely maintaining the wearer's arm at desired angles of abduction and external rotation. The pillow further includes an attached exercise grip and an indicator line that aids a physician in properly fitting the sling to the wearer.

There is provided an acetabular shell liner, and particularly a constrained liner, having a variable rim surface geometry to improve the range of motion of a femoral component within the liner and decrease the incidence of dislocation and subluxation. There are also provided methods of making and using the acetabular shell liner. Prosthetic devices, and particularly hip joint prostheses, containing the acetabular shell liner having a variable rim surface geometry are also provided.

Devices, systems and methods are disclosed for repairing soft tissue. The surgical system allows for the creation of tissue repair by grasping, aligning and sewing or fixing tissue. For example, this system may be used for clipping together excessive capsular tissue and reducing the overall capsular volume. The deployment device includes a central grasping mechanism and an outer clip delivery system. The clip embodiments may be single or multi-component (penetration and locking base components) that penetrate tissue layers and deploy or lock to clip the tissue together. An example of the system is used to reduce the joint capsule tissue laxity and reduces the potential for subluxation or dislocation of the joint by either restricting inferior laxity (anterior or posterior) and resolving or eliminating pathologic anterior or posterior translation.

Embodiments of the knee brace disclosed herein provide a combination of external ligament support and / or relief from pain caused by osteoarthritis with patellofemoral support. The brace includes a rigid frame and a flexible strap configured to extend across the wearer's patella to provide anterior loading thereto. The strap is operatively secured at either end to components of the rigid frame, thereby providing maximum leverage for applying force to the wearer's patella. In some embodiments, the strap includes a removable and adjustable buttress for directly contacting the wearer's patella. The patellar strap provides dynamic loading to the patella through the wearer's range of motion for relief of patellofemoral dysfunction, such as patellar shift, subluxation and dislocation, and malalignments such as patella alta, patella baja, tilt and glide. In some embodiments, a conversion kit is provided for converting a rigid brace frame into a knee brace capable of providing patellofemoral support to a wearer's knee. The kit includes at least a patellar strap and at least one tab for securing the strap to the rigid frame.

Embodiments of the knee brace disclosed herein provide a combination of external ligament support and / or relief from pain caused by osteoarthritis with patellofemoral support. The brace includes a rigid frame and a flexible strap configured to extend across the wearer's patella to provide anterior loading thereto. The strap is operatively secured at either end to components of the rigid frame, thereby providing maximum leverage for applying force to the wearer's patella. In some embodiments, the strap includes a removable and adjustable buttress for directly contacting the wearer's patella. The patellar strap provides dynamic loading to the patella through the wearer's range of motion for relief of patellofemoral dysfunction, such as patellar shift, subluxation and dislocation, and malalignments such as patella alta, patella baja, tilt and glide. In some embodiments, a conversion kit is provided for converting a rigid brace frame into a knee brace capable of providing patellofemoral support to a wearer's knee. The kit includes at least a patellar strap and at least one tab for securing the strap to the rigid frame.

A spinal intervertebral support coil sized to fit inside the intervertebral sac between adjacent vertebral bones of the spine and formed as a helical spring of high-resiliency material. The support coil is adapted for corkscrew insertion within an intervertebral disk sack between opposing disk bodies for additional (augmenting) support thereof by interposing a predetermined bias between opposing disk bodies, yet allowing a limited degree of rotational movement, torsional movement, and axial movement in a compressive direction for full displacement, rotation, subluxation, flexion, and extension of the vertebral bodies. An insertion tool is also disclosed for corkscrew insertion of the support coil, and this includes a handle and body with a rotating rod keyed to the support coil. A method for insertion of the spinal intervertebral support coil is also described.

A method of treating shoulder dysfunction involves the use of a percutaneous, intramuscular stimulation system. A plurality of intramuscular stimulation electrodes are implanted directly into select shoulder muscles of a patient who has suffered a disruption of the central nervous system such as a stroke, traumatic brain injury, spinal cord injury or cerebral palsy. An external microprocessor based multi-channel stimulation pulse train generator is used for generating select electrical stimulation pulse train signals. A plurality of insulated electrode leads percutaneously, electrically interconnect the plurality of intramuscular stimulation electrodes to the external stimulation pulse train generator, respectively. Stimulation pulse train parameters for each of the stimulation pulse train output channels are selected independently of the other channels. The shoulder is evaluated for subluxation in more than one dimension. More than one muscle or muscle group is simultaneously subjected to a pulse train dosage. Preferably, the at least two dosages are delivered asynchronously to two muscle groups comprising the supraspinatus in combination with the middle deltoid, and the trapezious in combination with the posterior deltoid.

An acetabular component for a prosthetic hip joint generally consists of an acetabular shell and an acetabular liner. The acetabular liner includes a cup portion and at least one constraining portion. The cup portion has a hemispherical or dome-shape that defines a hemispherical cavity for receiving a femoral head of a femoral component. The constraining portions may include extensions for retaining the femoral head in the cavity of the cup portion. The liner further includes cutout portions between the constraining portions. The acetabular liner is rotatable within the acetabular shell to provide a complete range of motion to the femoral component without fear of impingement, subluxation, or dislocation of the femoral head. The constraining portions may include inclined surfaces to induce rotation of the acetabular liner within the acetabular shell.

The invention is a shoulder orthotic that provides therapeutic functional support to an injured upper limb and eliminates the weighted pressure of limb support from the injured side of the body. The functional and supportive contributions are achieved by a shoulder suspension strap that is attached to a torso belt and then laid over an unaffected shoulder where the end of a limb is suspended. The passive and active incorporation of the injured limb with the device provides relief of subluxation in the joints, allows the patient to control contraction and relaxation of limb muscles and may be adjusted to alleviate restricted blood flow in the injured limb, all of which facilitate recovery of the injured limb.

Hip brace for motion control and support of the hip joint, and / or to the surrounding sacroiliac joint and / or lumbo-sacral joints concomitantly, built of configured elasticized neoprene with tensile strength, and with closures built of Velcro whose combined forces impart dynamic action and protection from hip dislocation and subluxation; range of motion control, joint protection and support, pain management, proprioceptive cueing, alignment support, resistive and assistive exercise options for people with disorders of the hip joint and as well for those with concomitant sacroiliac and lumbo-sacral instability. Medical conditions addressed include but not limited to hip pain, status post surgical hip, hip dislocation / subluxation, arthritis, sprains, strains, bursitis, tendonitis, joint hypermobility, ligamentous tears and sacroiliac and / or lumbo-sacral pain and instability, radiculitis as well as for athletes in need of hip joint and / or the sacroiliac, lumbo-sacral joint protection and support on and off the field and for everyday activities of daily living (ADL) and exercise.

A glove for reducing lateral subluxation of the first carpometacarpal joint that includes a glove body, and a strap portion carried by the glove body. The strap portion extends from a proximal end portion of the glove, and has a length sufficient to allow the strap to be looped around the thumb, to provide dorsal-radial tension on the thumb near the distal end of the first metacarpal in order to reduce lateral subluxation at the first carpometacarpal joint. An attachment element is also provided for securing a distal end of the strap portion to a mutually engaging attachment element secured to the glove body.

The invention discloses a navigation device capable of accurately locating hemiarthroplasty and a manufacturing method of the navigation device. The navigation device comprises navigation templates; the two navigation templates are oppositely arranged; the upper portion of the navigation template is horizontally provided with a prosthesis imbedding channel; the navigation template is divided into an upper portion and a lower portion through an intertubercular sulcus; and the upper portion and the lower portion of the navigation template are connected with each other so as to form one integrated body through a connecting component. According to the navigation device of the invention, the lower portion of the navigation template is attached to the intertubercular sulcus of a fractured end of a humerus; and the upper portion of the navigation template is provided with a prosthesis imbedding guide groove which can limit prosthesis imbedding direction and prosthesis imbedding depth. With the navigation device adopted, a novel method is provided for height and posterior slope angle determination in hemiarthroplasty; the problem of incapability of realizing anatomical reduction of a prosthesis caused by various kinds of reasons can be solved; the accuracy of the height and posterior slope angle of an imbedded prosthesis in hemiarthroplasty can be improved; operation time can be shortened; operative complications such as subluxation, overfilling and movement functional limitation of the head of the humerus as well as vascular and nerve injuries can be avoided.

An acetabular shell liner having a variable rim surface geometry, which improves range of motion of the femoral component within the liner and decreases the incidence of dislocation and subluxation, and methods of making and using the acetabular shell liner. Prosthetic devices, more particularly hip joint prostheses, containing the acetabular shell liner having a variable rim surface geometry are also provided.

A protective glove is disclosed that provides a user with protection against radial luxation or subluxation of the user's thumb during activities in which the user's thumb can be subjected to forces that may dislocate the thumb in relation to the hand. In one preferred embodiment, the protective glove is a ski glove that includes a bracing element to prevent injurious movement of a snow skier's thumb when a ski pole used by the skier forcefully reacts to movement of the ski pole as the pole is inserted or dragged within the snow upon which the skier is skiing. In other embodiments, the present invention may also be utilized by as user participating in activities such a skiing, rodeos, football, hockey, polo, baseball, and lacrosse.

A contouring arm and shoulder support is provided that is secured to a supporting and stabilizing belt. The support is interconnected to the belt by an adjustable shoulder component that supports an adjustable arm cuff and provides upward force that moves the patient's shoulder joint out of subluxation.

A mandibular subluxation device (MSD) is provided. The device includes an upper MSD component and a lower MSD component. The upper MSD component includes and upper tooth guide connected to an upper plate having a pair of depending legs. The upper MSD component further includes an upper force receiving plate. The MSD also includes a lower MSD component. The lower MSD component includes a lower tooth guide connected to a lower plate. The lower MSD component further includes a lower force receiving plate. The upper and lower MSD components are connected in a way that allows relative longitudinal movement between the two components between a neutral position and a plurality of extended positions. A ratchet mechanism inhibits movement of the lower plate from any extended position toward the neutral position. The ratchet mechanism may be manually disengaged to allow the lower MSD component to return to the neutral position.

A device intended to provide stabilization of a subluxed joint through a pneumatic air chamber combined with a plurality of straps designed to provide ease of use to the patient with a subluxed shoulder joint. This pneumatic sling will allow the user to operate this device with one upper extremity and improves independence to this population. The combination of the air chamber to the sling will provide added comfort by conforming to the discrepancies of an individual's body contours. The design of this invention with the manual pump and release valve will allow the ease of donning and doffing the device.

The invention discloses a shoulder upper limb bearing tape and belongs to the field of medical equipment. The device comprises a substrate arranged at the back of a patient, wherein the substrate is provided with a left shoulder girdle and a right shoulder girdle which wind around the shoulder on two sides of the patient; the substrate, which is positioned on the paralyzed upper limb side, is provided with a first bearing tape and a second bearing tape; elastic cloth which can coat the elbow of the patient is arranged between the first bearing tape and the second bearing tape; and the front end of the elastic cloth is provided with a wrist fixing tape used for fixing and supporting the weight of the upper limb and a detachable handheld device. The shoulder upper limb bearing tape is suitable for a hemiplegic paralysis patient, namely the hemi-upper limb can be supported, subluxation and shoulder blade postures are corrected, walking is promoted, the blood circulation of the upper limb is not influenced, a device in an upper limb flexor spasticity mode is not induced or weighted, and the shoulder upper limb bearing tape meets the urgent needs of correcting shoulder joint subluxation of the hemiplegic paralysis patient.

The invention discloses a frog type hip joint fixing support which comprises shoulder belts, a waist fixing belt, a waist fixing belt cushion, hip circumference plate cushions, thigh circumference plate cushions, thigh fixing belts, square plastic rings, thigh circumference plates, adjustable aluminum alloy back plates, plastic back plates, adjustable thigh supporting strips, right-angled connecting plates, copper sliding blocks and dial discs. The adjustable aluminum alloy back plates and the plastic back plates are connected through bolts, one end of each shoulder belt is connected with the corresponding plastic back plate through a snap fastener, and the other end of each shoulder belt penetrates through the waist fixing belt. The right-angled connecting plates, the copper sliding blocks and the dial discs are fixed to the adjustable aluminum alloy back plates, the right-angled connecting plates are connected with the adjustable thigh supporting strips, and the adjustable thigh supporting strips are connected through the thigh circumference plates through bolts. The hip joint abduction angle is adjustable, the hip flection angle is adjustable, and the frog type hip joint fixing support is mainly used for expectant treatment on hip joint dislocation and subluxation of a child who is six months to three years old or second-stage fixing by replacing a pair of traditional closed reduction gypsum trousers.

A method for treating patella subluxation includes positioning the patient for examination of an affected knee joint. It is then determined if there is subluxation of the patella, which may occur by palpation. If subluxation is found, an affected fibrous tissue adjacent to the patella is located. This may occur through implementing imaging technology, such as live imaging where a temporally changing image of the internal components of the knee may be viewed, static imaging where a temporally fixed image of the internal components of the knee is captured, or through palpation by a practiced medical professional. An effective amount of a neurotoxin is then introduced into the affected fibrous tissue, such as through injection. The method also may include an additional step of manipulating the patella into the patellofemoral groove, which may occur manually. Thereafter, various diagnostics and exercises are implemented to monitor and rehabilitate the affected area.

The invention discloses an elbow and forearm supporting device for shoulder joint subluxation rehabilitation. The elbow and forearm supporting device comprises a fixed waistband, a fixed part mountedon the fixed waistband, and a supporting part mounted on the fixed part and used for supporting the elbow and forearm of a patient; the supporting part is provided with a clamping structure which is mounted to the fixed part; and the fixed part is provided with a sliding clamping groove used for adjusting the height of the supporting part. The fixed part is fixed to the waist of the patient through the fixed waistband; the fixed part is equipped with the supporting part capable of supporting the elbow and forearm of the patient, and the height of the supporting part is adjustable, so that thehead of humerus can be stably and permanently reset in the shoulder joint fossa; and the device is suitable for patients with different heights. The device is simple in structure, convenient to use, comfortable to wear and stable in treatment effect, and can be widely applied to the prevention and treatment of shoulder joint subluxation caused by various reasons.

Provided is a flexible exoskeleton for arm rehabilitation training of patients with shoulder subluxation. The exoskeleton comprises an upper limb flexible binding device worn on the upper limbs of a human body, a power driving device for driving the movement of the upper limb flexible binding device and a transmission device connected between the power driving device and the upper limb flexible binding device, and the upper limb flexible binding device comprises a forearm sleeve, a rotator cuff and a cross binding strap. According to the wearable upper limb flexible exoskeleton robot, the positions of shoulder joints are fixed and corrected by flexible binding of the upper limbs, and the upper arm movement of the human body is driven to assist the patients with the shoulder subluxation totrain upper limb functions to improve the activity capability of daily living so that the upper limbs can conduct antexion and external extension actions.