摘要:
According to some embodiments, a method for promoting spinal fusion using a spinal implant comprises providing a spinal implant, wherein the spinal implant comprises an anterior wall, a posterior wall and two lateral walls configured to extend between the anterior wall and the posterior wall. In some embodiments, the spinal implant further comprises at least one internal chamber generally positioned between the anterior wall, the posterior wall and the two lateral walls, wherein the internal chamber being is adapted to receive at least one graft and/or other fill material. In some embodiments, at least a portion of the graft and/or other fill material delivered into the internal chamber is configured to exit through the one or more of the openings of the anterior wall.
摘要:
A lubrication device for lubricating a joint of a human or mammal patient, which is entirely implantable in a patient's body, comprises a reservoir for storing a lubricating fluid and a fluid connection for introducing the lubricating fluid into the joint when the device is implanted in the patient's body. Further, the fluid connection comprises a fluid connection device connecting the reservoir with the joint such that a lubricating fluid flow is established from the reservoir into the joint. The fluid connection comprises either an infusion needle adapted to be intermittently placed into the joint for injecting the lubricating fluid, or a tube adapted to be permanently placed into the joint for continuously injecting the lubricating fluid.
摘要:
The disclosure is directed to a resilient implant for implantation into human or animal joints to act as a cushion allowing for renewed joint motion. The implant endures variable joint forces and cyclic loads while reducing pain and improving function after injury or disease to repair, reconstruct, and regenerate joint integrity. The implant is deployed in a prepared debrided joint space, secured to at least one of the joint bones and expanded in the space, molding to surrounding structures with sufficient stability to avoid extrusion or dislocation. The implant has opposing walls that move in varied directions, and an inner space filled with suitable filler to accommodate motions which mimic or approximate normal joint motion. The implant pads the damaged joint surfaces, restores cushioning immediately and may be employed to restore cartilage to normal by delivering regenerative cells.
摘要:
L'implant d'articulation trapézo-métacarpienne (1) selon l'invention comporte un corps (2) présentant une surface articulaire métacarpienne et une surface articulaire trapézienne (6). Ces deux surfaces sont situées de part et d'autre d'un plan médian (π) du corps et correspondent chacune à un segment axial de cylindre, de cône ou de tore, ces deux segments axiaux de cylindre, de cône et/ou de tore étant centrés sur des axes respectifs (X 4 , X 6 ) qui, projetés sur le plan médian, sont sensiblement perpendiculaires l'un à l'autre. Cet implant présente le double avantage de pouvoir être mis en place de manière pérenne et de fournir une mobilité articulaire très proche de la mobilité anatomique de l'articulation trapézo-métacarpienne.
摘要:
An artificial joint associated with an implant including a pair of three dimensional and structurally extending bones, each defining a contoured and opposing end face, and which collectively defines a joint location. At least one plasticized layer is applied to one of, or both, the end faces in a coacting and substantially frictional reducing fashion. A lubricating plastic is defined upon an exposed face of the bladder. The plasticized layers may include a fluid receiving and inflatable bladder for filling a three dimensional area associated with the joint location. A curable/settable fluidic material can be injected into the bladder and which includes at least one of an epoxy, a urethane, a gelatin and a two-part hardener. The bones each further include an artificial implant constructed from at least one of a plasticized and a metallic material,
摘要:
A spacer implant (10, 110, 120) designed for placement between the bones of a joint, which includes soft tissue components. The spacer includes a spacer body (12) positionable between the bones and defined by an outer periphery (18). The spacer also includes at least one tether (40). Each of the tethers has a first end (42) fixed to the spacer body and a second end (44) extending outwardly from the outer periphery of the spacer body. The second end of each of the tethers is adapted to be fastened to any of the bones or the soft tissue components of the joint.
摘要:
An interpositional arthroplasty system for use in repairing ginglymus joints such as the joints of the ankle, including a tibiotalar implant (124) that provides a first major surface (130) adapted to be positioned against a tibia (120)and a second major surface (132) adapted to be positioned against a talus (108) and a polymeric ankle implant that provides a first major surface adapted to be positioned against a talus and a second major surface adapted to be positioned against a calcaneus. Such an implant can be useful for correcting various deformities of an ankle, as well as increasing articulation of a joint. Also described are biomaterials, including polymeric biomaterials having use in preparing such implants, as well as surgical kits that include implants and other tools adapted for their use.
摘要:
A method and system for the creation or modification of the wear surface of orthopedic joints, involving the preparation and use of one or more partially or fully preformed and procured components (10), adapted for insertion and placement into the body and at the joint site. In a preferred embodiment, components (10) can be partially cured and generally formed ex vivo and further formed in vivo at the joint site to enhance conformance and improve long term performance. In another embodiment, a preformed balloon (96) or composite material can be inserted into the joint site and filled with a flowable biomaterial in situ to conform to the joint site. In yet another embodiment, the preformed components (10) can be fully cured and formed ex vivo and optionally further fitted and secured at the joint site. Preformed components (10) can be sufficiently pliant to permit insertion through a minimally invasive portal, yet resilient enough to substantially assume, or tend towards, the desired form in vivo with additional forming there as needed.
摘要:
Articulation artificielle destinée notamment à remplacer des articulations chez l'homme, qui est composée d'au moins deux parties d'articulation (21, 22) avec des surfaces de fonction sphériques se mouvant l'une vers l'autre. Les rapports de courbure des surfaces de fonction (23, 24) qui présentent un contour de coupe circulaire sont convexes-convexes, convexes-concaves ou concaves-concaves les uns les autres. La geométrie de l'articulation est déterminée par une chaîne articulée comportant deux axes articulés qui passent par les centres de rotation M1 et M2 des surfaces de fonction ayant les rayons R1 et R2, R1 étant le rayon du contour de coupe circulaire de la surface de fonction ayant M1 pour point central et R2 étant le rayon du contour de coupe de la surface de fonction ayant M2 pour point central. Un élément de répartition de la compression (25) est disposé entre les deux surfaces de fonction (23, 24) des parties d'articulation (21, 22), dont les surfaces de frottement (26, 27) situées contre les surfaces de fonction présentent une courbure adaptée conformément aux surfaces de fonction. Les surfaces de glissement (26, 27) de l'élément de répartition de la compression (25) sont pratiquement de la même taille.
摘要:
A prosthesis (1) for the trapeze-metacarpal joint of the thumb comprises a body (2) suitable for being arranged between the scaphoid (31) and the metacarpus (30) of the thumb, such body (2) has the shape of an Archimedean solid and operates as a spacer between said scaphoid (31) and metacarpus (30).