摘要:
The invention relates to a pressfit socket for a hip joint endoprothesis having an outer surface and an inner recess, wherein the outer surface is cylindrically formed in an equatorial peripheral area that is adjoined by at least one conical section.
摘要:
A middle expanded, removable disk implant (22) with substantially rectangular cross-sectional shape with a minimal height (H) and a width (W) greater than the height which is detachably mounted to an applicator (52) for insertion into the anatomical region between two adjacent vertebrae (16, 18) from which a portion of the intervertebral disk has been removed. The implant is positioned by anterior-posterior movement in the disk space to the position in which both the expanded middle portion and the smaller diameter end (25, 36) portions of the implant engage the bodies (12, 14) of the adjacent vertebrae and then rotated to bring the sides (34) of the implant defining the height of the implant into engagement with the bodies of the adjacent vertebrae. A lock (24) is then secured to the implant to prevent further rotation thereof. In the event the adjacent vertebrae need to be aligned before fusion, an elongate implant (112) is provided which is split longitudinally into side-by-side members (113, 114) movable relative to each other and which is inserted into the disk space between two misaligned vertebrae (133, 137). The members are provided with teeth (138) for engaging the adjacent vertebrae and the implant formed by the two side-by-side members is rectangularly-shaped in cross section, the height (H6) of the rectangularly-shaped cross section being less than the width (W6) so that the implant can be inserted between the adjacent vertebrae with the lesser, height dimension oriented in the same direction as the axis of the spinal column and the larger width dimension at approximately a right angle to that axis. One member is then moved relative to the other from the first side-by-side position along the longitudinal axis of the implant to a second position in which the members are aligned with the respective, adjacent, misaligned vertebrae and the implant is rotated 90° to engage the teeth to the bodies of the adjacent vertebrae. The two members are then brought back into the first side-by-side position to draw the vertebrae into alignment and the implant is rotated approximately 90° to disengage the teeth from the vertebrae for removal from the disk space.
摘要:
An implantable article includes a textured bone engaging surface having a surface texture pattern formed by a plurality of furrows separated by ridges that are integral with the base material from which the article is formed. The furrows are formed by ablating in the surface a series of intersecting holes. The side walls of the furrows have scalloped edges. The ablating energy can be applied by techniques such as laser ablation and hydrojet ablation.
摘要:
A middle expanded, removable disk implant (22) with substantially rectangular cross-sectional shape with a minimal height (H) and a width (W) greater than the height which is detachably mounted to an applicator (52) for insertion into the anatomical region between two adjacent vertebrae (16, 18) from which a portion of the intervertebral disk has been removed. The implant is positioned by anterior-posterior movement in the disk space to the position in which both the expanded middle portion and the smaller diameter end (25, 36) portions of the implant engage the bodies (12, 14) of the adjacent vertebrae and then rotated to bring the sides (34) of the implant defining the height of the implant into engagement with the bodies of the adjacent vertebrae. A lock (24) is then secured to the implant to prevent further rotation thereof. In the event the adjacent vertebrae need to be aligned before fusion, an elongate implant (112) is provided which is split longitudinally into side-by-side members (113, 114) movable relative to each other and which is inserted into the disk space between two misaligned vertebrae (133, 137). The members are provided with teeth (138) for engaging the adjacent vertebrae and the implant formed by the two side-by-side members is rectangularly-shaped in cross section, the height (H6) of the rectangularly-shaped cross section being less than the width (W6) so that the implant can be inserted between the adjacent vertebrae with the lesser, height dimension oriented in the same direction as the axis of the spinal column and the larger width dimension at approximately a right angle to that axis. One member is then moved relative to the other from the first side-by-side position along the longitudinal axis of the implant to a second position in which the members are aligned with the respective, adjacent, misaligned vertebrae and the implant is rotated 90° to engage the teeth to the bodies of the adjacent vertebrae. The two members are then brought back into the first side-by-side position to draw the vertebrae into alignment and the implant is rotated approximately 90° to disengage the teeth from the vertebrae for removal from the disk space.
摘要:
Cette prothèse articulaire comprend une pièce proximale (P) et une pièce distale (D). Chaque pièce (P,D) comporte plusieurs tronçons (P1, P2, P3, P4, D1, D2, D3, D4) en gradins l'épaisseur (e 1 , e 2 , e 3 , e 4 ) des tronçons (D1, D2, D3, D4) de l'une des pièces (D) étant croissante, tandis que celle (E1, E2, E3, E4) des tronçons (P1, P2, P3, P4) de l'autre pièce (P) est décroissante.
摘要:
A radiopaque protesis consisting of a heterologous collagen tube for use in hollow organ sutures having tubular form with frusto-conical ends (2) and provided with an annular rim (3) in an itermediate position, completed by a collagen strip to wrap the suture in the manner of a band.
摘要:
Des manchons (13) de fixation d'articulations artificielles sur l'os comprennent une partie conique (6) centrée sur l'axe longitudinal (36) du manchon et une partie en saillie (8) décalée par rapport à l'axe longitudinal et possédant un bord d'attaque elliptique. Des cavités (88) épousant parfaitement la forme du manchon (13) peuvent être ménagées aisément dans l'os du patient (54). La forme des cavités (88) correspond généralement à la forme interne de la partie dure (56) de l'os du fémur du patient. A près l'implant, les manchons (13) transfèrent les efforts de la prothèse à la partie dure (56) de l'os.