Abstract:
Systems for interbody fusion of adjacent bone portions may include an expanding implant and related instruments. An expanding implant may be formed as a linkage which is movable between a compact configuration and an expanded configuration. A shaft of the implant may increase and decrease in length to move between the compact and expanded configurations, and an implant width perpendicular to the length may be increased in the expanded configuration. The implant width may increase more in a first direction than a second direction opposite the first direction. An inserter instrument may releasably grasp the spacer and transform the implant between the compact and expanded configurations.
Abstract:
An implant or endoprosthesis suitable to be implanted in human or animal tissue comprises two (or more than two) parts to be joined in situ. Each one of the parts comprises a joining location, the two joining locations facing each other when the device parts are positioned for being joined together, wherein one of the joining locations comprises a material which is liquefiable by mechanical vibration and the other one of the joining locations comprises a material which is not liquefiable by mechanical vibration and a structure (e.g. undercut cavities or protrusions) suitable for forming a positive fit connection with the liquefiable material. The joining process is effected pressing the two device parts against each other and by applying vibration, e.g. ultrasonic vibration, to one of the device parts when the two parts are positioned relative to each other such that the two joining locations are in contact with each other. Preferably, at least one of the device parts is fixed to the tissue before or during the joining process. Such fixing is advantageously effected with the aid of a further liquefiable material and mechanical vibration which results in an anchorage of the part by interpenetration of the tissue by the liquefiable material.
Abstract:
According to some embodiments, a method of inserting a lateral implant within an intervertebral space defined between an upper vertebral member and a lower vertebral member includes creating a lateral passage through a subject in order to provide minimally invasive access to the intervertebral space, at least partially clearing out native tissue of the subject within and/or near the intervertebral space, positioning a base plate within the intervertebral space, wherein the base plate comprise an upper base plate and a lower base plate and advancing an implant between the upper base plate and the lower base plate so that the implant is urged into the intervertebral space and the upper vertebral member is distracted relative to the lower vertebral member.
Abstract:
An intervertebral spacer (300) having an upper layer (302), a lower layer (306) and at least one non-planer compliant layer (304). The non-planer compliant layer is disposed between the lower layer and the upper layer and includes a portion that extends outside a lateral plane in which the compliant layer resides. The non-planar compliant layer made of a material that is more yielding than the upper layer and the lower layers, and may have a cross-section that is z-shaped, u-shaped, sinusoidal-shaped, zigzag shaped, etc.
Abstract:
Embodiments of the current invention include a biocompatible implant and end cap or biocompatible implant, connector and end cap combinations that can assist with the restoration of the normal anatomic spinal alignment and spinal stability. Other embodiments of the current invention include a stabilizer for receiving an end of a spinal implant, where the stabilizer includes a gap that creates a socket for receiving the spinal implant. Embodiments of the current invention are manufactured in a plurality of shapes.
Abstract:
A socket (1) for a hip joint prosthesis is made of biocompatible and osteo-integratable material and has a substanttially spherical, cap-like shape with a distal surface (4) and a proximal cavity (5), wherein the proximal cavity (5) is suitable for housing both joint inserts (16) made of synthetic material and joint inserts (16) made of ceramic material. The cavity (5) of the socket (1) comprises frustoconical portions (6, 7, 8), wherein the most frustoconical portion (6) has a channel (12) which can be coupled with at least one respective projection extending from an outer surface of a joint insert (16) made of synthetic material. This most proximal frustoconical portion (6) has a substantially cylindrical recess (13) adjacent the channel (12).
Abstract:
The present invention relates to an implant comprising two or more bone fragments that are combined to form a single unit. Cancellous bone or cortical bone is removed from a source and fashioned into bone components with desirable shapes and sizes. The bone components may be integrated to form implants for implantation in the body. Bone stock may be formed by combining sections of various bones of the body, and the bone stock may be further fashioned for use as implants with particular geometries.
Abstract:
The invention relates to a removable anchoring element (3) for an implantable microcontact foil (2) used as a neuroimplant, especially for retina implants. The anchoring head rises above the surface of the implant, for fixing purposes, and the fixing device can be removed during the re-explantation or anchoring process by pulling the implant foil (2) beneath the anchoring head.
Abstract:
The invention relates to an endoprosthesis for a shoulder joint. Said endoprosthesis is characterized in that a rotation-symmetrical articulation chamber (19) is formed in the shaft head (17) of the endoprosthesis, and that an axial articulation member (25) is disposed in said chamber. The articulation member axis (35) and the axis of rotation (33) are perpendicular relative to each other. A joint neck (27) can be pivoted about the axis of rotation (33) and the articulation member axis (35) at any selected angle of inclination or rotation. Clamping surfaces (71, 61) that are disposed at an angle to the axis of rotation (33) are rotation-symmetrical or planar and interact with articulation surfaces (75, 73) of the articulation member (25) that are preferably also rotation-symmetrical. The inventive endoprosthesis, using non-spherical articulation surfaces (75, 73) and clamping surfaces (71, 61), achieves the same freedom of adjustability of the joint neck (27) as endoprostheses with a ball-and-socket type articulation.