70 results about "Acromion" patented technology

In a first aspect the present invention provides a glenoid prosthesis assembly for use in shoulder joint arthroplasty to address conditions where deterioration of the rotator cuff mechanism of the shoulder joint is severe, the assembly comprising a first shell component to be affixed to a scapula by fixing means, and a smaller second component adapted to nest within the first component and having an articulation surface for articulating with a humeral head, the first component being over-sized relative to the glenoid surface of a scapula whereby the first component may be first affixed to at least two of the glenoid, acromion and coracoid processes of the scapula in use by the fixing means and the second component may be cemented in place within the first component allowing initial adjustability in the poise of the second component relative to the first component. Amongst other aspects the invention also provides a modular proximal humeral prosthesis system for use in shoulder joint arthroplasty which enables the proximal humeral prosthesis to be changed between anatomical and reverse of anatomical configurations to address differing degrees of shoulder joint deterioration.

A glenoid component for treatment of rotator cuff arthropathy includes attachment to the coracoid process by a pin or post imbedded into a hole formed in the coracoid process. The glenoid component preferably also has a keel for extending into the glenoid fossa and protrusions such as ridges cemented to the acromion process. This way, an attachment point is preferably provided in/on the coracoid process, the acromion process, and the glenoid fossa, and at least two of the attachment points include a protrusion extending into a hole/slot drilled or otherwise formed in the bone. A jig is used for guiding/drilling into the bone, wherein the jig has both a glenoid fossa drill guide and a coracoid drill guide. The coracoid drill guide includes structure that abuts against opposing sides of the base of the coracoid process to prevent rotation of the jig relative to the scapula.

Systems and methods are provided for treating chronic pain occurring secondarily to subacromial impingement syndrome in a human body. A system is provided to deliver percutaneous electrical stimulation through at least one electrode to neurological motor points of the posterior and middle deltoid muscles to mediate such pain. One-time, continued and/or periodic dosing of treatment methods according to the present invention may result in a change to central nervous system maladaptive neuroplasticity.

A prosthetic shoulder implant includes a humeral component having an anchor and a head, and a glenoid component. The glenoid component is defined by a body having an outer surface including one or more tissue and bone in-growing material areas, a concave inner surface for accepting the head of the humeral component, and defining a stop portion which prevents the head of the humeral component from moving upwardly into contact with the acromion or clavicle. A method of total shoulder arthroplasty includes locating the humeral and glenoid components so that the glenoid component prevents movement of the humeral component into contact with the acromion or clavicle, and such that the glenoid component is permanently anchored to the patient by tissue and bone ingrowth into the outer surface of the component.

A shoulder implant device includes one or more fixation features including an acromial intrusion element and an inflatable humeral balloon portion that receives a fluid through the acromial intrusion element. The intrusion element comprises a valve that can receive multiple needle sticks to add or remove fluid to or from the inflatable humeral balloon. The device is implanted in a subacromial space such that the one or more fixation features at least secure the device to the acromion and the inflatable balloon portion rests against the proximal end of the corresponding humerus. Fluid in the balloon portion maintains separation of the acromion and the humerus to reduce or prevent impingement.

A shoulder implant device includes one or more fixation features including an acromial intrusion element and an inflatable humeral balloon portion that receives a fluid through the acromial intrusion element. The intrusion element comprises a valve that can receive multiple needle sticks to add or remove fluid to or from the inflatable humeral balloon. The device is implanted in a subacromial space such that the one or more fixation features at least secure the device to the acromion and the inflatable balloon portion rests against the proximal end of the corresponding humerus. Fluid in the balloon portion maintains separation of the acromion and the humerus to reduce or prevent impingement.

A medical procedure for use in connection with a patient suffering from cuff tear arthropathy is disclosed. The medial procedure includes providing a humeral prosthesis having a prosthetic head component, wherein (i) the prosthetic head component includes a glenoid-bearing portion and an acromion-bearing portion, and (ii) the glenoid-bearing portion and the acromion-bearing portion define an outer bearing surface, and (iii) the outer bearing surface extends in a medial/lateral direction across a radial distance D, and (iii) D≧190°. The medical procedure further includes implanting the humeral prosthesis in the patient so that the acromion-bearing portion contacts and bears directly against a natural acromion of the patient during abduction of an arm of the patient that possesses the humerus.

The acromioclavicular joint prosthesis of the present invention provides a mechanism for securing the distal or outer end of the clavicle to the acromion of the scapula. The present prosthetic device includes an acromion attachment component, an opposite clavicle attachment component, and an articulated joint between the two components. The intermediate joint may include a “breakaway” component, allowing the joint to be temporarily misaligned in the event that a severe force is applied to the shoulder, rather than damaging the joint or shoulder structure. The breakaway joint may be quickly and easily realigned by a medical professional. The joint may also include a spring loaded shock absorption component as well, to avoid damage to the joint due to excessive tensile forces. Tools and a method for surgically installing and locking the present prosthesis securely to the respective bones of the skeletal structure, are also disclosed.

The invention relates to an acromioclavicular joint elastic micro-motion fixing plate and belongs to the technical field of human body implants. The acromioclavicular joint elastic micro-motion fixing plate is composed of a micro-arc-shaped main plate, two U-shaped structures, a left twisting plate and a right twisting plate. The left twisting plate and the right twisting plate are symmetrically manufactured at one end of the micro-arc-shaped main plate, the left twisting plate and the right twisting plate are connected with the micro-arc-shaped main plate through the U-shaped structures, and the U-shaped structures can conduct flexible adjustment in the horizontal plane and the vertical plane. The micro-arc-shaped main plate, the left twisting plate and the right twisting plate are provided with fixing holes respectively. The micro-arc-shaped main plate, the two U-shaped structures, the left twisting plate and the right twisting plate fixedly support the three ends of a shoulder blade, control the gap size and the moving range of an acromioclavicular joint, and are suitable for micro motion of the acromioclavicular joint in each direction, firm in fixing, and easy, convenient and accurate to install and position. The problems that an existing hook steel plate structure makes pressure stress of an acromion and the clavicle too large and cannot control the gap size and the moving range of the acromioclavicular joint, operation restoration is prone to being unsatisfactory, a hook slides down from the acromion, and the treatment effect is seriously impacted are solved.

The invention relates to the technical field of medical balloons, and discloses a balloon for treating rotator cuff injury. The balloon comprises a biological tissue layer, a balloon body with an inner cavity, a catheter and a liquid injection joint; the biological tissue layer wraps the balloon body so as to seal the balloon body in the biological tissue layer; the liquid injection joint is arranged outside the biological tissue layer, one end of the liquid injection connector is connected with one end of the catheter, and the other end of the catheter penetrates through the biological tissuelayer and communicates with the balloon body; and the balloon body is in a fan shape protruding upwards. The invention can solve the problems that a balloon in the prior art fractures in advance, isdisplaced, does not match the acromion-humeral head gap in shape, has poor biocompatibility, and the like.

The invention provides a cervical pillow suitable for side lying and supine lying, a design method of the cervical pillow, a design device of the cervical pillow, and a medium. The method comprises the following steps of obtaining a posteroanterior position photo and a side position photo of a customizer during the standing near a wall; importing the photos into three-dimensional modeling software; respectively delineating the posteroanterior position contour from the ears to the acromia in the posteroanterior position photo and the side position contour from the occipital bone to the seventhcervical spinous process in the side position photo; performing regulation; connecting the posteroanterior position contour and the side position contour so as to construct a supine lying region and aside lying region; performing modeling processing to obtain a cervical pillow three-dimensional model; and performing 3D printing by using soft materials. The height of the pillow can be customized according to physiological curves of different people; the suspended position of the cervical vertebra can be fully filled, so that the cervical vertebra can be supported; the fatigue due to the suspended state can be avoided; and meanwhile, the requirement of keeping the cervical vertebra on a good physiological curve during supine lying or side lying can be met.

A fixator combining a mesoscapula part, an acromion part and a distal clavicle part is made of memory alloy, the shape of the fixator is a whole fracture-setting steel plate, and the fixator is divided into four parts including the mesoscapula part, the acromion part, a joint bridging part and the distal clavicle part and is an inner fixing medial instrument suitable for the fracture of the mesoscapula area, the acromion area and the distal clavicle with or without acromioclavicular dislocation. The shape of the fixator is designed according to the layout and the physiological anatomy shape of the acromion area, the mesoscapula area and the distal clavicle, and can connect and stereoscopically fix the acromion area, the mesoscapula area and the distal clavicle together. The fixator is good in elasticity and strength and can be processed in a bent, twisted and sheared mode freely according to the fixation need of a fracture operation. In addition, the fixator is convenient to shape and install, external fixation is not needed after the operation, early function exercise of the shoulder joint is facilitated, and postoperative ankylosis is prevented. By means of the fixator, the curative effect is improved, complications are reduced, a complex operation is simplified, operation risks are reduced, and the fixator is worth popularization.

The invention relates to an acromioclavicular elastic fixing plate and belongs to the technical field of implants in a human body. The fixing plate comprises an upper fixing plate body, a lower fixing plate body and an elastic deformation structure. The upper fixing plate body and the lower fixing plate body are fixedly connected through the two ends of the elastic deformation structure. Upper fixing plate fixing holes and lower fixing plate fixing holes are manufactured in the upper fixing plate body and the lower fixing plate body respectively. The elastic deformation structure, the upper fixing plate body and the lower fixing plate body are used for elastically fixing an acromioclavicular joint, the acromioclavicular joint can restore an original anatomical corresponding relationship to the largest extent, fixation is firm, installation and positioning are easy and accurate, pain of patients is greatly reduced, and the healing effect is good. The problems that due to an existing hook plate structure, compressive stress on acromion and clavicle is too large, the effect of fixing exo-clavicular comminuted fracture and acromioclavicular joint dislocation is poor, patients feel pain, have compression feeling and are unhooked and afraid of activities, an elasticity attenuation capacity of an elastic structure is poor, the long-term effect is not ideal, and the treatment effect is severely affected are solved.

The invention discloses a shoulder joint implant for maintaining and properly increasing the distance between a humeral head and an acromion and increasing the distance between a humerus greater tubercle and the acromion at shoulder abduction. The shoulder joint implant comprising a solid cover is characterized in that the solid cover disposed between the end portion of the humerus and the acromion is fixedly connected with the end portion of the humerus; the solid cover is provided with a first surface and a second surface, wherein the first surface fits the end portion of the humerus, and the second surface is disposed with the back to the end portion of the humerus; the second surface directly or indirectly abuts the lower surface of the acromion. With the end portion of the humerus fixedly connected with the solid cover and the solid cover capable of maintaining the distance between the end portion of the humerus and the lower surface of the acromion, the shoulder joint implant hasthe advantages of preventing the pain caused by the impact between the acromion and the end portion of the humerus, restoring normal biomechanical properties of the shoulder joint of a patient, effectively reducing extrusion on surrounding tissues due to the fact that the solid cover is a solid structure and the shape is small when pressed by force, and reducing shoulder discomfort.

Embodiments of the present invention relate to a correctional brace for shoulder remediation for wearing on an individual's wrist to lock the wrist in place while the individual is sleeping or resting. In one embodiment of the present invention, a correctional brace for shoulder remediation comprises a wrist guard for securely fitting around an individual's hand, the wrist guard having an anchor support on a top outer surface thereof; an anchor brace for fitting around an anchor base, the anchor brace having an anchor connection means on an outer surface thereof; and an anchor strap for anchoring the wrist guard in a substantially fixed palm anterior position, the strap connecting to the anchor support and the anchor connection means, wherein the correctional brace is capable of decompressing the individual's shoulder and subacromial space therein.