Abstract: The invention relates to a retraction system for exposing accesses in human medicine, dentistry or veterinary medicine, wherein said retraction system is arranged on the respective body region and has at least one hook-shaped retractor element and retaining means for fixing the latter. The retraction system is characterized in that it is made of a radioparent material and in that it has a self-retaining action and/or is flexible at least in some areas such that, during retraction, a flexible element or a flexible section nestles against a tissue that is to be retracted.

Abstract: The invention relates to a retraction system for exposing accesses in human medicine, dentistry or veterinary medicine, wherein said retraction system is arranged on the respective body region and has at least one hook-shaped retractor element 1 and retaining means for fixing the latter. The retraction system is characterized in that it is made of a radioparent material and in that it has a self-retaining action and/or is flexible at least in some areas such that, during retraction, a flexible element or a flexible section nestles against a tissue that is to be retracted.

Abstract: The invention relates to a retraction system for exposing accesses in human medicine, dentistry or veterinary medicine, wherein said retraction system is arranged on the respective body region and has at least one hook-shaped retractor element 1 and retaining means for fixing the latter. The retraction system is characterized in that it is made of a radioparent material and in that it has a self-retaining action and/or is flexible at least in some areas such that, during retraction, a flexible element or a flexible section nestles against a tissue that is to be retracted.

Abstract: The invention relates to an intervertebral disk implant (1) which is used to implant between two vertebrae (2), comprising at least two components (3,4; 13,14,15) which form at least one sliding pair and which are made of a ceramic material. The at least two ceramic components (3,4; 13,14,15) are arranged in a covering (5).

Abstract: The shoulder prosthesis has a stem (10), a ball head (20) and a middle section (30) that can be attached to the proximal end (12) of the stem (10) and to which the ball head (50) can be attached. The middle section (30) can be clamped to an attachment element (20) that is adjustable in a first direction at the proximal end (12) of the stem (10), the first direction lying in the resection plane or parallel thereto. The first direction generally runs approximately medially-laterally. The attachment element (20) can be displaceable on the stem (10) by means of a dovetail guide (15) or guided displaceable in a guide bore in the stem (10). The middle section can be clamped against the attachment element (20), whereby the attachment element (20) and the middle section (30) can be fixed.

Abstract: The hip-or shoulder-joint endoprosthesis has a stem (10) and a ball head (20) that has an arched top side (21) and a closed underside (22). The longitudinal axis of the stem (10) forms an angle of at most 30° with the axis of the ball head (20). The stem (10) tapers with an overall aperture angle in the range of 5 to 30°. The ball head (20) has the shape of a sphere section of less than a hemisphere. The length of the stem (10) is less than the diameter of the ball head (20). The longitudinal axis of the stem (10) can coincide with the axis of the ball head (20).

Abstract: A shoulder endoprosthesis includes a middle section, a capitulum attachable to the middle section, and a shaft section adjustably attachable to the middle section. The middle section is adjustable relative to the shaft section along a shaft axis A of the shaft section and rotationally about the. shaft axis A. The endoprosthesis also includes a clamping element for attaching the shaft section to the middle section.