摘要:
Device for holding in place and compression of fractured bone fragments. The subject of the invention is an osteosynthesis device consisting of a screw with a tapered or conical point. Said screw's body (4) includes, at its distal end, an outer thread (5). The device is characterized in that the screw head (6) consists of folding strips (7) integral with the body and in that the screw includes means for folding the strips. The invention is for use especially in the treatment of scaphoid and internal malleolar fractures, Garden fractures 1 and 2 of the thigh bone neck, pertrochanteric fractures of the thigh bone and, generally, fractures of small bones, and also in positioning hip or shoulder stops.
摘要:
L'invention concerne un dispositif destiné au maintien et à la compression des fragments d'un os fracturé. Elle a pour objet un dispositif d'ostéosynthèse constitué par une vis (1) dont la pointe (3) est pyramidale ou conique et dont le corps (4) est muni, à son extrémité distale, d'un pas de vis extérieur (5), caractérisé en ce que la tête (6) de la vis est constituée par des ailettes (7) repliables solidaires du corps et en ce que la vis comporte des moyens pour replier les ailettes. Elle est utile notamment pour les fractures du scaphoïde, de la malléole interne, les fractures de Garden 1 et 2 du col du fémur, les fractures pertrochantériennes du fémur, et de manière générale, pour les fractures des petits os, et pour la mise en place de butées de hanche ou d'épaule.
摘要:
The invention relates to a device which is used to immobilise a threaded support pin (21) in relation to a fixed element (1, 34), said pin being screwed into a bone part (3, 3a, 3b) along an axis (yy'). The inventive device is characterised in that it comprises a locking sleeve (13) which can be solidly screwed to the fixed element (1, 34, 7) and which is provided with an axial bore (19) in order to receive the pin (21). According to the invention, the axis (zz') of the sleeve screw thread is angularly and/or laterally offset in relation to the axis (yy') of the pin (21) when the latter is in place on the bone part (3, 3a, 3b), and/or the axis of the bore (19) of the locking sleeve (13) is angularly and/or laterally offset in relation to the screw thread axis (6).
摘要:
The invention relates to an osteosynthesis device comprising, on the one hand, a plate (12), which can be adjusted along a bone element (10), and at least one pin (26), and, on the other hand, a locking bushing (30) for rigidly connecting said plate (12) and said at least one pin (26). Said locking bushing (30) has a screwable part (32) and a drive part (34) separated from each other by a breakable zone (38), said screwable part having axial slits (44) that form notches (50). Said breakable zone (38) is intended to be broken in order to free said screwable zone (32) from said drive part (34). Said axial slits (44) extend into said breakable zone (38) so as to be able to fragment said screwable part (32) into independent notches (50) when said breakable zone (38) is broken, in order to be able to adjust the relative position of said notches (50) around said at least one pin (26).
摘要:
A device for locating suspicious lesions detected by mammography. The device is useful for locating small breast lesions detected by mammography and includes an anchoring means consisting of one or more flexible resilient elements that remain straight during the positioning process and bend once they are positioned, as well as at least one wire that is no shorter than the implantation depth of the anchoring means in the breast. An apparatus is also provided for positioning said device and includes a combination of a hollow needle (16) or cannula that is no shorter than the implantation depth of the anchoring means in the breast, a rod (17) that may be inserted into the cannula to push back the anchoring means fitted into the cannula lumen, and a releasable locking portion (19) arranged between the base of the cannula and the base of the rod. The device is useful for locating microcalcifications to enable optimal ablation thereof.
摘要:
The invention relates to an osteosynthesis device. The osteosynthesis ring, intended to be used in combination with a pin or a screw, and optionally with an osteosynthesis plate, comprises a cylindrical hollow body. The body (2) of the ring (1) is made of a spring biocompatible material; the ring body is traversed from side to side along its revolution axis by a channel (8) housing the pin; the ring body is provided on its external portion with a translational and/or protectional locking means (3, 28, 29); the proximal portion of the body and/or the head of the ring is split (6, 27) along at least one diameter in order to form at least two separate parts (5, 6) susceptible of being spaced from each other. Application to the compression of one or a plurality of fractured bones.