Abstract:
A method and implant based on injection molding techniques. The method produces polymeric components suitable for implantation with a structure and mechanical properties close to those of natural bone tissue. In a variant, method for making an implant or component thereof includes forming a standard shape foamed blank, and over-molding a thin layer of non-foamed PEEK material onto the standard shaped foamed blank to obtain a final implant component geometry, whereby the blank is completely encapsulated by the over-molded thin layer.
Abstract:
A method and implant based on injection molding techniques. The method produces polymeric components suitable for implantation with a structure and mechanical properties close to those of natural bone tissue. In a variant, method for making an implant or component thereof includes forming a standard shape foamed blank, and over-molding a thin layer of non-foamed PEEK material onto the standard shaped foamed blank to obtain a final implant component geometry, whereby the blank is completely encapsulated by the over-molded thin layer.
Abstract:
An intervertebral prosthesis (1 ), particularly for percutaneous mini- invasive surgery procedures, having the particularity that it comprises a plurality of mutually articulated segments (21-28). More precisely, the segments (21-28) are movable from an active configuration, in which they are arranged with respect to each other so as to form a disk-like body (2), to an insertion/extraction configuration, in which the segments (21-28) are substantially mutually aligned, and vice versa.
Abstract:
Die Erfindung betrifft ein Zwischenwirbelfusionsimplantat (1) zur Fusion zweier Wirbel (52, 53). Das Zwischenwirbelfusionsimplantat zur Fusion zweier Wirbel (52, 53) umfasst einen oberen Lagerkörper (2) zur Anlage an eine untere Endplatte eines Wirbels (52) und gegenüberliegend einen unteren Lagerkörper (3) zur Anlage an eine obere Endplatte eines Wirbels (53), sowie ein zwischen den Lagerkörpern (2, 3) angeordnetes Mittelstück (6), wobei das Mittelstück als eine Klauenkupplung (9) ausgebildet ist, die in einer Koppelstellung die beiden Lagerkörper (2, 3) drehfest gegeneinander koppelt, wobei in einer offenen Stellung der Klauenkupplung (9) die Lagerkörper (2, 3) gegeneinander frei beweglich sind, wobei die Klauenkupplung (9) automatisch betätigt ist und als Betätigungsorgan einen plastischen Sperrkörper (10) aufweist, der in seiner initialen Stellung die Klauenkupplung (9) offen hält und unter einer von dem einen Wirbel (52) auf den anderen Wirbel (54) übertragenen Lastkraft langsam verformbar ist bis zum Erreichen einer finalen Koppelstellung, in der die Klauenkupplung (9) geschlossen ist. Durch die langsame Fusion der Wirbel (52, 53) bemerkt der Patient die Bewegungseinschränkung seiner Wirbelsäule nicht und sein Bewegungsapparat kann sich an die Veränderung langsam gewöhnen.
Abstract:
A prosthetic spinal disc system is provided. The prosthetic disc system has a nucleus component having an upper surface configured to engage a superior vertebra and a lower surface configured to engage an inferior vertebra, an anchor configured to affix to an anterior surface of at least one of the superior vertebra or the inferior vertebra, and a tether tying the nucleus component to the anchor. In such embodiments, the nucleus component further has a perimeter situated substantially between the upper surface and the lower surface of the nucleus component and the tether is at least partially situated on the perimeter of the nucleus component. In certain embodiments, the upper surface and the lower surface of the nucleus component are configured to allow for implantation of the disc system such that after a discectomy, no preparation of at least one of the superior and inferior vertebrae is necessary.
Abstract:
A spinal implant 150, 151 comprises a first rolling-contact core 152 operably coupled to a first vertebra 106, said first rolling-contact core having a first convex surface 153 having a first axis 180, said first convex surface configured to provide a first rolling motion in a first direction 184 to said first vertebra relative to a second vertebra 108. At least one flexure 154 is connected to said first rolling-contact core, said flexure configured to constrain said first rolling motion.
Abstract:
A spinal implant 150, 151 comprises a first rolling-contact core 152 operably coupled to a first vertebra 106, said first rolling-contact core having a first convex surface 153 having a first axis 180, said first convex surface configured to provide a first rolling motion in a first direction 184 to said first vertebra relative to a second vertebra 108. At least one flexure 154 is connected to said first rolling-contact core, said flexure configured to constrain said first rolling motion.
Abstract:
An implant for use in the treatment of damaged cartilage within a joint, the implant is adapted to be inserted into a cavity of the joint and reduce stress on the cartilage engendered, for example, by patient activity. The implant may form an internal cushion, which protects the cartilage such that wearing forces. The cushioning effect facilitates regeneration of the cartilage.
Abstract:
The present invention relates to implants used for alleviating and/or preventing conditions relating to damaged joints involving articulating surfaces. The implants comprise fibre of polymer and/or metal that is preferably in a fabric. The implant can be used as an artificial joint, as part of an artificial joint or as an artificial joint spacer made to replace the missing cartilage or to improve the slidability between two natural and/or artificial components of the body, or between a natural and artificial component. The product of the invention can be used to partly or entirely coat medical products or to make up implants partly or entirely.
Abstract:
An artificial spinal disc that may be implanted between adjacent vertebrae in the spine to replace, repair or augment a natural spinal disc. The spinal disc implant is characterized by one or more biomechanical properties that approximate those of a natural spinal disc and is durable enough to function in the body for long time periods, amongst other advantages.