摘要:
The invention relates to an intervertebral implant comprising a spacer designed to be applied between two spinous processes of two vertebrae. The spacer comprises: two elements (10, 12) made of a first material, and each presenting a first end (10a, 12a) and a second end (10b, 12b), said first end (10a, 12a) being securable to a spinous process; and a connection piece (14) made of a second material of greater elastic deformability than said first material, said connection piece interconnecting said second ends (10b, 12b) of said two elements (10, 12) so that the stresses that are exerted on said two elements (10, 12) are damped, and said connection piece enabling said intervertebral implant to limit and brake the relative movements of said vertebrae.
摘要:
The invention provides an intervertebral implant for the lumbo-sacral joint, the implant consisting in a spacer suitable for being placed between the fifth lumbar vertebra and the sacral vertebra articulated thereto, the body of said spacer presenting in its top face a groove extending in the midplane of the spacer and suitable for receiving the spinous process of said lumbar vertebra. A longitudinal housing oriented orthogonally to said groove is formed in the bottom face and is suitable for receiving the top portion of the sacral vertebra. The longitudinal housing is defined by an extension and by a tab of width narrower than the width of the body of the spacer. The section of the housing in the midplane of the space is generally U-shaped, being inclined relative to the bottom of the groove.
摘要:
The invention provides an intervertebral implant for the lumbo-sacral joint, the implant consisting in a spacer suitable for being placed between the fifth lumbar vertebra and the sacral vertebra articulated thereto, the body of said spacer presenting in its top face a groove extending in the midplane of the spacer and suitable for receiving the spinous process of said lumbar vertebra. A longitudinal housing oriented orthogonally to said groove is formed in the bottom face and is suitable for receiving the top portion of the sacral vertebra. The longitudinal housing is defined by an extension and by a tab of width narrower than the width of the body of the spacer. The section of the housing in the midplane of the space is generally U-shaped, being inclined relative to the bottom of the groove.
摘要:
A method and instrument for tensioning a flexible tie used for fastening an implant on a bony element by forming a first loop around it. In some embodiments, the instrument comprises a shaft having a distal end configured for contact with a rod, a moving part slidably engaged with the shaft, a holder connected to the moving part and configured to hold an end of the flexible tie, and a tension control member comprising a trigger that pivots relative to the moving part. In some embodiments, the method comprises coupling the end of the flexible tie to the instrument and squeezing the trigger to shorten the first loop of the flexible tie around the bony element, causing the moving part and the holder holding the end of the flexible tie to move in translation away from the distal end of the shaft, thereby exerting tension on the flexible tie.
摘要:
The present invention relates to an instrument for tensioning a flexible tie (14) used for fastening an implant on a bony element of a patient by forming a first loop around the bony element. Said instrument comprises: a rod (42) having a first end provided with bearing means (44) for bearing against said implant; a moving part (46) that is movable in translation and that surrounds said rod (42) over a fraction of its length, said moving part including holder means (50) for holding the end of said tie; and control means (52) mounted on said moving part (46) to cause the moving part to move relative to said rod, thereby tending to move the first end (42a) of the rod away from said moving part, thereby exerting tension on said tie relative to said implant.
摘要:
The invention relates to a connecting member for maintaining the spacing between at least two anchor members screwed into vertebrae. It comprises two rigid rod-forming parts (12, 14) made of a first material and each having a fixing, first portion (16, 18) adapted to be fixed into an anchor member and a fastening, second portion (20, 22), said rods (12, 14) being aligned with each other and said fastening portions (20, 22) facing each other, and a connecting body (24) made of a second material which is more elastically deformable than said first material and which interconnects said rigid parts (12, 14) by means of the facing fastening portions (20, 22) so that said connecting body (24) is able to deform elastically, whereby the vertebrae, which are held spaced from each other, are movable relative to each other.
摘要:
The invention relates to an intervertebral implant comprising a spacer constituted by first and second parts (12, 14), said parts being provided with mutual assembly means comprising first clip-fastener means (54, 56) secured to one of said parts, second clip-fastener means (49, 50) secured to the other part and suitable for co-operating with the first clip-fastener means to achieve releasable clip-fastening between the two parts, and guide means for guiding the two parts (12, 14) during clip-fastening, said guide means being distinct from the clip-fastening means and comprising: a substantially non-deformable first guide assembly (42, 44) secured to one of said parts; and a substantially non-deformable second guide assembly (46, 48) secured to the other part to co-operate with the first guide assembly.
摘要:
The invention relates to a connection system (3, 12, 13) between two longitudinal cylindrical spinal support rods (4), said connection system comprising at least one transverse elongate element (6, 14) having, on each end thereof, a head (7, 8; 17, 18; 43) for attaching onto a corresponding rod. At least one of said attachment heads (7, 8; 17, 18) includes a semi-cylindrical recess (19) for clipping with the rod (4), said recess having an upper lip (20, 21), covering the bottom of the rod, and a lower lip (22, 23), that is radially opposite said upper lip, and the head comprises a means (11, 24) for bending said lower lip (22, 23) between a position for connecting and a position for locking onto the rod.
摘要:
The invention relates to a knee prosthesis (1) including a femoral part (2) connected to a tibial plate (3) by an intermediate meniscal plate (4) provided with an upper surface (5). The intermediate meniscal plate (4) and the tibial plate (3) are connected to each other by two planar joining surfaces, the tibial plate (3) including a central pivot pin (26) or at least one clipping/indexing finger (34, 35) which protrudes with respect to the tibial joining surface (11). The meniscal joining surface (12) of the meniscal plate (4) includes, in combination, a central hole (25) capable of engaging with the pivot pin (26) of the tibial plate in one case, and a locking recess (46, 47) capable of becoming embedded with the indexing finger (34, 35) of the tibial plate in the other one case, depending on whether the tibial plate comprises a pivot pin or an indexing finger.
摘要:
The present invention relates to a vertebral fixing system adapted to be mounted on a vertebra of the spine to connect it to a rod. Said fixing system comprises: a connecting part adapted to face the rib and/or said transverse process and to be connected to said rod; an elongate flexible ligature adapted to connect together said connecting part and at least one rib and/or one transverse process; and adjustable locking means fastened to said connecting part and adapted to fix simultaneously in position said connecting part relative to said rod and at least one portion of said ligature relative to said connecting part, so as to prevent relative displacement of said rod and said vertebra in opposite directions.