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SURGICAL SEPARATOR FOR UNNOMINATED PELVIS OSTEOTOMY (MACHINE-TRANSLATION BY GOOGLE TRANSLATE, NOT LEGALLY BINDING)
ES1273252
Surgical retractor (1) for innominate osteotomy of the pelvis, comprising an essentially straight handle (2) with a handle (3) on its proximal side and a valve (4) on its distal side, in which the handle (2) has an essentially rectangular cross section, the plane (?1) passing through its center parallel to the main faces and the handle (3) is configured as an extension of the handle (2) in its proximal side and has two through holes, perpendicular to the plane (?1), and sized to allow the insertion of the fingers of the medical professional, characterized in that - the leaflet (4) has a surface formed by two flat portions (41, 42) that form a first angle (a) of between 110 degrees -140 degrees with each other, where each of said flat portions (41, 42) forms a second Angle (beta) of between 110 degrees -130 degrees with a foreground (?1) that contains the handle (2), so that the leaflet (4) forms between both flat portions (41, 42) an open space towards the distal side to accommodate a portion of the pelvic bone, - and because a distal end of the leaflet (4) comprises a platform (43) essentially parallel to the plane (?1) of the handle (2), said platform (43) having a stud (43a) and a cavity (43b) complementary to each other oriented in opposite directions along a direction perpendicular to said platform (43), so that it is possible to couple two surgical spacers (1) to each other by superimposing both platforms (43) and inserting the lug (43a) of one of them in the cavity (43b) of the other. (Machine-translation by Google Translate, not legally binding)
the separators known up to now continue to have various drawbacks, since they do not allow the tissues of the pelvic bone to be adequately separated. The present invention solves the above problems thanks to a new separator specially designed to separate the tissues of the pelvic bone during the performance of an innominate osteotomy. To do this, the separator of the invention has valves specially designed to adapt to the shape of the pelvic bone. These leaflets also have coupling elements designed to couple two spacers together, thus facilitating the application of traction on the tissues by providing a common point of support from both sides. In addition, the shells can optionally have a useful chisel guide to serve as a guide in case it is necessary to use this type of tool. An additional advantage of the present invention is that the dimensions of the separator are parameterized, so that it can be manufactured in different sizes according to the needs of each particular case. This facilitates its use in patients with different anatomical characteristics, for example children of different ages.