摘要:
One embodiment of the present invention relates to a reverse shoulder assembly. Another embodiment of the present invention relates to a reverse shoulder assembly method of use. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to a forward flexion force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force and a forward flexion force.
摘要:
Set (1) for a glenoid implant, comprising: - an anatomic articulating member (50, 60), having a concave articulating surface (51, 61) intended to articulate with a complementary humeral implant (2) and having an anatomic coupling feature (52, 62), - a reversed articulating member (70, 80, 90, 100, 110, 120), having a convex articulating surface (112) intended to articulate with a complementary humeral implant (4) and having a reversed coupling feature (70, 80) that is shaped differently from the anatomic coupling feature, and - an anchorage member (10) intended to be anchored in a human glenoid (G), the anchorage member including a body (11) which defines a proximodistal axis (Z11) and which is provided with both an inner first feature (16) that is designed to cooperate with the anatomic coupling feature to fixedly couple the anchorage member with the anatomic articulating member, and an inner second feature (17) that is designed to cooperate with the reversed coupling feature to fixedly couple the anchorage member with the reversed articulating member, the first feature and the second feature being distinct from each other. The anchorage member is operable to be axially introduced into the glenoid before being coupled indifferently with one or the other of the anatomic and reversed articulating members.
摘要:
This shoulder prosthesis glenoid component (2) has on one of its faces an articulation surface (S A ) adapted to cooperate with a humeral head and having, on an opposite face (S G ) adapted to be immobilized on the glenoid cavity (G) of a shoulder, a keel (4) for anchoring it in the glenoid cavity (G). This keel (4) comprises a body (5) that extends from the opposite face (S G ). The keel (4) comprises at least one fin (6) projecting from the body (5) which runs over at least a part of the perimeter of the body (5).
摘要:
One embodiment of the present invention provides a femoral component of a knee prosthesis, wherein the femoral component include a sharp radius at each end (e g, the anterior end and the posterior end) of the femoral component. The sharp radius at each end may form a 'claw' at each end.Each of these claws may 'dig' through the patient's cartilage into the bone (or may 'dig' directly into bone if there is no intervening cartilage). Enhanced fixation may be achieved with the claws 'digging' and fixing into the bone as well as the claws providing additional cement pressurization (e g, with the claws in the bone, cement is less likely to escape by the anterior and posterior ends). Further, one benefit provided by a claw may be facilitating a smooth transition of cartilage/poly bearing to femoral implant/poly bearing (e g, during knee extension).
摘要:
A glenoid assembly comprises a base component having a humeral-facing side and a scapula-facing side. The base component defines a bearing surface defined on the humeral-facing side. A first peg extends from the scapula-facing side of the base component, and a second peg extends from the scapula-facing side of the base component. The first peg and the second peg are positioned in non-parallel orientation with respect to each other. The first peg defines a first shaft diameter equal to FD and a first shaft length equal to FL, and the second peg defines a second shaft diameter equal to SD and a second shaft length equal to SL, in which 0.14
摘要:
The invention relates to a cartilage substitute structure (1) which uses anchor elements (2) that penetrate into the bone and are fixed therein by means of friction, clamping or a positive-fit, in order to ensure that said cartilage substitute structure (1) is fixed in a mechanically secure manner. This type of anchoring process allows the connection between the bone and the cartilage substitute structure (1) to optionally remain open, thus making it suitable for the transfer of cells from the bone marrow into the cartilage substitute structure (1).
摘要:
Es handelt sich um eine zementfreie im Becken zu verankernde Hüftgelenkpfanne, die aus einer metallischen Stützschale (3), die mehrere dornähnliche Verankerungselemente (8) zur Verankerung im Knochengewebe (1) aufweist und die an ihrer Aussenfläche mit einem mehrlagigen Metallgitter (4) zur Förderung des Einwachsens belegt ist, und aus einer inneren Kunststoffschale (5) besteht, die in der Stützschale (3) mit einer Schnappverriegelung (6) verankert ist. Die Stützschale besteht aus tiefgezogenem Blech, das zwei auf einer Schalenhälfte nach Aussen gerichtete kragenförmige Durchrisse (8) aufweist, die vorstehende sich verjünende Schneidkanten besitzen und die sich von der jeweiligen Schneidkante nach Innen konisch erweitern. Beim Einpressen ergeben die Durchrisse (8) eine Verankerung gegen Aussen und gegenüber einem stehengebliebenem Innenzapfen (10) aus Knochengewebe. Bei ungenügender Gesamtverankerung dienen die Durchrisse (8) als Zentrierung und Auflage für zusätzliche Knochenschrauben (14).
摘要:
Der Kunststoff-Pfannenkörper (2) ist auf seiner Kontaktfläche zum Knochen mit einem mindestens zweilagigen Metallgitter (5) belegt und weist mindestens einen zapfenartigen Vorsprung (6) aus Metall auf, der in den Pfannenkörper (2) eingeschweißt ist. Durch die Verwendung von Metallen als Werkstoff für das Gitter (5) und den Vorsprung (6) werden direkte Kontakte zwischen Knochen und Kunststoff verhindert, die zu einem Zersetzen des Kunststoffes durch Körperflüssigkeiten führen können. Das Einschweißen des Vorsprungs (6) ergibt eine kostengünstige und wenig arbeitsaufwendige Fixierung des Vorsprungs (6) im Pfannenkörper (2), die eine feste und sichere Verankerung gewährleistet.