173 results about "Scapula" patented technology

The present invention relates to an exoskeleton interface apparatus that parallels human arm motion and is comprised of a serial assemblage of five powered linkages and joints based at a rigid support structure worn on the torso of the human subject. Such apparatus generates shoulder rotation using three orthogonal revolute joints mounted on serial linkages encompassing and intersecting at the anatomical glenohumeral joint. Elevation of the shoulder joint is articulated using a link member driven by a single revolute joint mounted in the torso structure. Passive adjustable linkages are used to match variation in anatomical forearm length, upper arm length, and scapula-to-glenohumeral radius. A plurality of integrated dc motor / harmonic drive transmission modules is co-located on adjoining linkages to power the joints. Force is exchanged with the human at the handgrip and elbow brace, and reacted to the torso structure via the base attachment. The present invention is applicable in particular to rehabilitation of the shoulder.

A method and apparatus for facilitating shoulder arthroplasty by providing a reference to establish version of the glenoid. In one form of the invention, a guide for positioning a guide pin to facilitate implantation of a glenoid prosthesis is provided. To properly position the guide pin, the guide is first oriented with respect to the scapula. A portion of the guide is positioned over the approximate center of the glenoid surface and another portion of the guide is positioned against the anterior surface of the scapula. After the guide is properly positioned, the guide pin is inserted through an aperture in the guide and anchored in the glenoid. Thereafter, the guide pin can serve as an alignment guide for other devices used to modify the glenoid surface. For example, a reamer having a cannulated central shaft can be placed over the guide pin and utilized to resurface the glenoid.

An orthopaedic alignment guide component is provided for preparing a patient's bone socket, such as the glenoid of the patient's scapula, to receive a prosthetic glenoid component. The orthopaedic alignment guide component includes a guide body for inserting a guide pin into the patient's scapula and an inferior referencing arm for referencing an inferior surface of the patient's scapula.

A shoulder model and methods of shoulder arthroscopy using the shoulder model. The shoulder model includes an acromioclavicular (AC) joint assembly, a joint capsule assembly, a scapula mount, a shoulder musculature, a skin, and a base. The AC joint assembly is mounted on the scapula mount and the joint assembly is attached to the AC joint assembly and fastened using a screw / nut to form the shoulder assembly. The shoulder assembly is placed in the shoulder musculature and the skin is rolled over the shoulder musculature and zipped in place. The bones of the shoulder assembly are made of foam-cortical shell, the shoulder musculature is made of foam, the soft tissue components are made of thermoplastic elastomers, and the skin is made of vinyl. A method of practicing shoulder arthroscopy using the shoulder model includes mounting the shoulder model in a beach chair position, making anatomical references, establishing a posterior viewing portal, inserting cannulas into the glenohumeral joint or the subacromial space, creating a labral disruption or a rotator cuff tear, and repairing the rotator cuff tear or labral disruption.

A glenoid prosthesis includes a bearing, the lateral side of which defines a concave bearing surface, and a carrier shell, the medial side of which comprises anchoring elements, wherein the medial side is generally flat. The prosthesis may be implanted in an anterior-posterior (A-P) by forming bores in the scapula in the A-P direction, wherein the anchoring elements extend into the bores. The scapula may be proceed to have a generally flat surface to correspond with the flat surface at the medial side of the prosthesis.

A method and apparatus for facilitating shoulder arthroplasty by providing a reference to establish version of the glenoid. In one form of the invention, a guide for positioning a guide pin to facilitate implantation of a glenoid prosthesis is provided. To properly position the guide pin, the guide is first oriented with respect to the scapula. A portion of the guide is positioned over the approximate center of the glenoid surface and another portion of the guide is positioned against the anterior surface of the scapula. After the guide is properly positioned, the guide pin is inserted through an aperture in the guide and anchored in the glenoid. Thereafter, the guide pin can serve as an alignment guide for other devices used to modify the glenoid surface. For example, a reamer having a cannulated central shaft can be placed over the guide pin and utilized to resurface the glenoid.

A glenoid component used for shoulder arthroplasty is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and a second medial surface opposite to the first articulating surface. The first articulating surface is adapted to engage with a humeral head. A plurality of fixed pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from the medial surface. A central peg fixation mechanism is provided that is configured to couple an optional central fixation peg to the medial surface.

A glenoid component used for shoulder arthroplasty is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and a second medial surface opposite to the first articulating surface. The first articulating surface is adapted to engage with a humeral head. A plurality of fixed pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from the medial surface. A central peg fixation mechanism is provided that is configured to couple an optional central fixation peg to the medial surface.

A prosthetic glenoid component for attachment to a scapula to provide a bearing for a humeral head in a shoulder prosthesis has a one-piece bearing element having a concave lateral bearing surface for contact with the humeral head with which it is to be used. An opposing relatively hard medial surface of the bearing element is provided for attachment to a scapula. The lateral surface is a soft low modulus concave lateral bearing surface extends around the periphery of the bearing element and increases its thickness to provide a deformable rim to simulate the labrum in an anatomical glenoid. The bearing element preferably has two affixation pegs which project from the medial face thereof, one at a superior position which projects in a superior direction and the other which is located in an inferior position and which projects in an inferior direction which is angled in relation to the medial-lateral direction.

The present invention relates to an exoskeleton interface apparatus that parallels human arm motion and is comprised of a serial assemblage of five powered linkages and joints based at a rigid support structure worn on the torso of the human subject. Such apparatus generates shoulder rotation using three orthogonal revolute joints mounted on serial linkages encompassing and intersecting at the anatomical glenohumeral joint. Elevation of the shoulder joint is articulated using a link member driven by a single revolute joint mounted in the torso structure. Passive adjustable linkages are used to match variation in anatomical forearm length, upper arm length, and scapula-to-glenohumeral radius. A plurality of integrated dc motor / harmonic drive transmission modules is co-located on adjoining linkages to power the joints. Force is exchanged with the human at the handgrip and elbow brace, and reacted to the torso structure via the base attachment. The present invention is applicable in particular to rehabilitation of the shoulder.

Various embodiments of the present invention relate to an apparatus and method for reverse shoulder arthroplasty (e.g., reverse total shoulder arthroplasty). In one specific example, a glenoid component used to resurface the scapula may be provided. Of note, unlike traditional total shoulder arthroplasty the glenoid component in a reverse shoulder is convex rather than concave; it acts as a physical stop to prevent the superior migration of the humeral head—a typical occurrence in patients suffering from rotator cuff tear arthropathy (CTA).

A augmented glenoid implant assembly for use in performing shoulder arthroplasty is provided. The augmented glenoid implant assembly is used for cooperation with the glenoid fossa of a scapula. The implant assembly includes a first component for attachment to the scapula. The first component defines a support surface for cooperation with the glenoid fossa, a second surface positioned adjacent a buttress formed in the glenoid fossa and an assembly surface. The implant assembly also includes a second component removably secured to the first component. The second component includes an assembly face of the second component. The assembly surface of the second component is in close approximation to the assembly surface of the first component. The second component further includes an articulating surface opposed to the assembly surface.

A glenoid implant assembly is provided. The assembly includes a first component for attachment to the glenoid fossa of a scapula. The component defines an assembly face of the component. The assembly also includes a second component removably secured to the first component. The second component includes an assembly face of the second component. The assembly face of the second component is in close approximation to the assembly face of the first component. The second component is attachable to the first component in a direction generally normal to the assembly faces.

A method and adjustable apparatus for stabilizing and strengthening the shoulder muscles and rotator cuff provides an active range of motion activities that can be performed with or without resistance. In particular, the method and apparatus provide for scapular retraction and protraction, shoulder flexion, extension, adduction and abduction, as well as internal and external shoulder rotation, performed horizontally and vertically. All of these motions are beneficial to the shoulder joint because they allow the joint to move freely throughout its normal range of motion using natural mechanics of the rotator cuff and surrounding muscles. The method and apparatus provide the essential benefit of stabilizing the shoulder and rotator cuff throughout these motions so that the user's range of motion and strength building is optimized. The method and apparatus also provide for self myofascial release techniques to decrease spasm.

An undershirt including a main constituent portion made of stretchable materials that include a first-type material, a second-type material, and a third-type material. The first-type material has a straining force greater than a straining force of the second-type material, and the second-type material has a straining force greater than a straining force of the third-type material. The first-type material is arranged to cover at least part of musculus triceps brachii. The third-type material is arranged to cover at least a part of a lateral portion of musculus trapezius, at least a part of superior portion of musculus latissimus dorsi, and at least a part of a medial portion of musculus deltoideus in a vicinity of scapula. The second-type material is arranged in regions other than the regions where the first-type and third-type materials are arranged.

In this set of humeral components for a total shoulder prosthesis, each component is formed by an anchoring stem and a metaphyseal part which defines a concave surface of articulation globally in the form of a portion of sphere. The offset between the axis of symmetry of this surface and the central axis of the metaphyseal part of the different components is variable. This makes it possible to limit or to avoid, by a reasoned choice of the humeral component used, an interference with the pillar of the scapula during the movement of adduction.

A shoulder model and methods of shoulder arthroscopy using the shoulder model. The shoulder model includes an acromioclavicular (AC) joint assembly, a joint capsule assembly, a scapula mount, a shoulder musculature, a skin, and a base. The AC joint assembly is mounted on the scapula mount and the joint assembly is attached to the AC joint assembly and fastened using a screw / nut to form the shoulder assembly. The shoulder assembly is placed in the shoulder musculature and the skin is rolled over the shoulder musculature and zipped in place. The bones of the shoulder assembly are made of foam-cortical shell, the shoulder musculature is made of foam, the soft tissue components are made of thermoplastic elastomers, and the skin is made of vinyl. A method of practicing shoulder arthroscopy using the shoulder model includes mounting the shoulder model in a beach chair position, making anatomical references, establishing a posterior viewing portal, inserting cannulas into the glenohumeral joint or the subacromial space, creating a labral disruption or a rotator cuff tear, and repairing the rotator cuff tear or labral disruption.

An instrument for measuring a defect in a glenoid fossa of a scapula is provided. The instrument includes a member for contact with the glenoid fossa and a probe. The probe is moveably associated with the member. The probe is operably associated with the defect for measuring the defect in the scapula.

A novel posterolateral inter-muscular approach has been developed to access the cervical spine. The approach includes elevating the splenius capitis and trapezios muscles dorsally to create a window for deep spine access, wherein the window comprisesi) an anterior superior border of the trapezius muscle;ii) an anterior inferior border of the splenius capitis muscle, andiii) a posterior superior border of the levator scapulae muscle.Preferably, a device such as an implant or an instrument is then passed through the window to manipulate the spine.

A backpack is provided incorporating a framesheet and having superior torsional flexibility and load support. The backpack includes a sack configured to be disposed on a user's back and having a first side adjacent to the user's back, when worn. The framesheet is attached to the first side of the sack, generally with the spine of the user. A surface contour is provided to the framesheet that facilitates load support and inhibits barreling. The framesheet has a first width in the upper region and a second width less than the first width, the second width residing in the intermediate between the scapulas and the hip bones of the user. Optionally, a stay can also be provided to the backside of the framesheet, preferably along the centerline thereof.

A glenoid prosthesis for use in total shoulder arthroplasty. The glenoid prosthesis has a concave articulating plate that can interact with the humeral component of an artificial shoulder joint, and a backing for connecting and bonding the prosthesis to the human scapula. The backing of the glenoid prosthesis can be made using hydroxyapatite, which forms a bond with human bone. The backing can further include means for connecting, such as pegs or a keel, to facilitate the connection of the glenoid prosthesis with the scapula.

A method of implanting a revision glenoid component in one embodiment includes accessing a previously implanted glenoid component in a scapula, removing the previously implanted glenoid component, identifying an inferior glenoid circle center of the scapula, preparing a glenoid fossa of the scapula to receive a revision glenoid component, selecting a revision glenoid component, and implanting the selected revision glenoid component based upon the identified inferior glenoid circle center in the prepared glenoid fossa.

One aspect of the invention may be characterized as a shirt configured to counteract detrimental upper body movement. The shirt has a base layer, a plurality of inelastic bands, and a load distribution portion. The plurality of inelastic bands are coupled to the base layer, and include a first cross-connecting band, a second cross-connecting band, a third cross-connecting band, and a fourth cross-connecting band. The load distribution portion is also coupled to the base layer, and anchors ends of the first, second, third, and fourth cross-connecting bands. Further, the first, second, third, and fourth cross-connecting bands and the load distribution portion are configured to limit internal rotation and anterior tilting of the scapula when the shirt is worn by a user.

A augmented glenoid implant assembly for use in performing shoulder arthroplasty is provided. The augmented glenoid implant assembly is used for cooperation with the glenoid fossa of a scapula. The implant assembly includes a first component for attachment to the scapula. The first component defines a support surface for cooperation with the glenoid fossa, a second surface positioned adjacent a buttress formed in the glenoid fossa and an assembly surface. The implant assembly also includes a second component removably secured to the first component. The second component includes an assembly face of the second component. The assembly surface of the second component is in close approximation to the assembly surface of the first component. The second component further includes an articulating surface opposed to the assembly surface.

Improved backboard pads for use in transporting immobilized patients on a backboard while still providing reasonable comfort to the patient include a base pad having with a plurality of gel-filled pads secured to the base pad, the gel-filled pads including first and second scapula pads positioned on either side of the longitudinal axis of the base pad, a buttocks pad between the scapula pads and the lower end of the base pad, a heel pad between the buttocks pad and the lower end of the base pad, and a headrest pad between the scapula pads and the upper end of the base pad. An inflatable lumbar pad is secured to the base pad between the scapula pads and the buttocks pad; and an inflatable knee pad is slidably positioned between the buttocks pad and the heel pad. The gel-filled pads are preferable secured in openings through the base pad.

A shoulder joint prosthesis has an at least two-pieced humeral head prosthesis, comprising a calotte, or a joint head (3) and a fixing body (5, 7). The latter comprises a fixing piece (15), for detachable connection of the calotte and a mounting section (21), for the at least cement-free anchoring of the fixing device in the bone. The fixing body is preferably of two-piece embodiment, comprising a discoid positioning body (5) with a medial hole and an anchoring body (7), provided for fixing the positioning body (7) to the bone through the medial hole (19).

A kit for implanting a glenoid component in one embodiment includes a retroversion glenoid component including a generally flat glenoid bone contacting surface defining a first plane, a first offset peg extending away from the glenoid bone contacting surface, a concave articulating surface, an upper surface extending about the concave articulating surface and generally opposite to the glenoid bone contacting surface, the upper surface defining a second plane, the second plane angled with respect to the first plane, and a drill guide configured to guide a drill in forming a bore in a scapula to receive the first offset peg.

Method and set of surgical instruments for fitting a shoulder prosthesis, and the shoulder prosthesis. The proposed method seeks to interpose a bone graft between the previously prepared glenoid surface of a scapula of a patient's shoulder and the face of a glenoid prosthetic component opposite the articular surface. The set of instruments permit the bone graft to be taken from the upper epiphysis of the humerus, either in situ or ex vivo.

The seatback has a seat surface curving and gradually bulging in the up-down direction, along the occupant's shoulder blades, and curving in the left-right direction and receding to support the occupant's ribs. Preferably, the seat surface of the seatback extends upward to support the lower part of the occupant's neck, thus supporting the same in the up-down direction, and recedes to support the occupant's shoulder blades in the left-right direction.

Supportive garments, particularly maternity and post-maternity garments, are provided for support and promoting good posture of a wearer. The garment covers a wearer's torso and at least an upper portion of a wearer's thighs and includes a non-stretchable posterior panel positioned to extend transversely at least over an inter scapular upper back region of a wearer and longitudinally to a wearer's waistline, and connecting across a stretchable body portion that covers a lower torso and extends along a wearer's posterior sides to a shoulder region. An embodiment suitable as a maternity garment includes an abdominal portion having a more stretchable material than surrounding areas, whereas an abdominal portion in another embodiment suitable for post-maternity or slimming supportive wear is more compressive and incorporates cellulite-reducing fibers. A shoulder support portion extends laterally and upwardly from a lower portion of the posterior panel to the shoulder region.