An inflatable and implantable balloon for treatment of degenerative disc disease, bones, lesions, spinal deformities and spinal motion segment instabilities. The balloon is comprised of adjustable and expandable volumes. Further disclosed are methods of forming, inserting, expanding, and implanting the multi-volume balloon for proper placement and stabilization of the spinal lesion or disease. Still further disclosed are kits for aligning and stabilizing elements of the spine.

Expandable prosthetic devices used for treating a variety of conditions, including rotator cuff injuries, broken and/or depressed bone fractures, infection and/or inflammation in the body. In one embodiment, a prosthesis includes an implant having a pressure regulating valve. The implant is capable of being positioned between a first tissue and an opposing second tissue in a void space and of deforming under pressure in response to articulation of a joint. The pressure regulating valve is configured to open based on a predetermined pressure in the implant.

A bone fusion device for insertion between bones that are to be fused together, such as, for example, the vertebrae of a spinal column. The bone fusion device comprises at least one extendable tab and one or more tab extension assemblies. Each tab extension assembly is able to be adjusted in order to individually control the extension or contraction of a side of the tab thereby enabling adjustment of the height and/or angle of the tab with respect to the body of the bone fusion device. Each tab extension assembly is able to be individually adjusted such that the side controlled by each assembly is raised or lowered until the desired tab angle is achieved. The tab is advantageously positioned and angled to correspond to the vertebrae to help brace the device until the bone has fused.

The present invention is directed to a hinge joint implant (40) configured to fit in a joint cavity and which can comprise, when in situ, an at least hemi-spherocylindrical configuration, and further a hinge joint implant configured to fit in a joint cavity wherein the implant can extend around the sides of a joint component which may be a bone and/or cartilage. The invention further provides the use of a hinge joint implant according for treating arthritis, and/or torn cartilage, and a method for manufacturing a hinge joint implant from one or more pieces.

A selectively expanding spine cage has a minimized cross section in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Expanding selectively (anteriorly, along the vertical axis of the spine) rather than uniformly, the cage height increases and holds the vertebrae with fixation forces greater than adjacent bone and soft tissue failure forces in natural lordosis. Stability is thus achieved immediately, enabling patient function by eliminating painful motion. The cage shape intends to rest proximate to the anterior column cortices securing the desired spread and fixation, allowing for bone graft in, around, and through the implant for arthrodesis whereas for arthroplasty it fixes to endpoints but cushions the spine naturally.

Disclosed are a self-switching transmission assembly, a balloon, and a prosthesis for use in a shoulder joint. The self-switching transmission assembly comprises: a communicating tube (11, 11′, 11″) comprising an input end (111, 111′, 111″) and an output end (112, 112′, 112″); an external connection tube (12, 12′, 12″), an end portion thereof being insertable into the communicating tube (11, 11′, 11″) from the input end (111, 111′, 111″) and removable from the communicating tube (11, 11′, 11″) from the input end (111, 111′, 111″); and a sealing tube (13, 13′, 13″), which can be placed in a tube body of the communicating tube (11, 11′, 11″) and moved axially relative to the tube body of the communicating tube (11, 11′, 11″). The sealing tube (13, 13′, 13″) comprises a connection end (131, 131′, 131″) and a sealing end (132, 132′, 132″), the connection end (131, 131′, 131″) being detachably connected to the end portion of the external connection tube (12, 12′, 12″) by means of a connection driving mechanism, and the sealing end (132, 132′, 132″) being provided with a pass-through region, wherein, when the pass-through region is exposed outside of the output end (112, 112′, 112″), the self-switching transmission assembly is in a pass-through state, and when the pass-through region is placed inside the tube body of the communicating tube (11, 11′, 11″), the self-switching transmission assembly is in a sealed and blocked state.

A rotator cuff balloon (10) is disclosed, the rotator cuff balloon (10) includes a limiting structure (100) and a protective structure (200) connected to the limiting structure (100). The limiting structure (100) defines a curvature along a coronal plane. The rotator cuff balloon (10) conforms to the physiological structure of the human shoulder joint limits itself in the subacromial space and can reduce a patient's foreign body sensation, dislocation, functional failure and other adverse events.

An expanding, conforming interbody implant includes a plurality of superior and a plurality of inferior segments. The segments are adapted to individually expand, contact, and conform to endplates of vertebral bodies to distribute forces equally over the implant and across the vertebral endplates. Once a proper extension of the segments has been achieved, the segments are locked in position. The implant has a stiffness that approximates the stiffness of bone, and the implant minimizes problems with subsidence, endplate fractures, and stress shielding.

Devices and methods for treating one or more damaged, diseased, or traumatized portions of the spine, including intervertebral discs, to reduce or eliminate associated back pain. In one or more embodiments, the present invention relates to an expandable interbody spacer. The expandable interbody spacer may comprise a first jointed arm comprising a plurality of links pivotally coupled end to end. The expandable interbody spacer further may comprise a second jointed arm comprising a plurality of links pivotally coupled end to end. The first jointed arm and the second jointed arm may be interconnected at a proximal end of the expandable interbody spacer. The first jointed arm and the second jointed arm may be interconnected at a distal end of the expandable interbody spacer.

The invention relates to a vertebral prosthesis with outstanding functionality, adaptability, and safety with respect to its predecessors. It is conceived and designed to provide a better service and serve as an axis so that spinal operations, as well as other diseases can be better addressed. It seeks, above all, to adapt to the nature of human biology and resembles that nature as much as possible, based on an internal suspension system which allows greater mobility and better weight distribution, imitating the natural deformation of the bone.