Patent ID: 9005247
Filing Date: 2015-04-14
Classification: A61B

Abstract:
1. A surgical apparatus comprising an implant for mutually supporting an upper spinous process of a first vertebral body by means of an upper supporting surface and a lower spinous process of a second vertebral body by means of a lower supporting surface, wherein the implant comprises a first implant component and a second implant component which is configured such as to be movable relative thereto along a clamping direction in order to transfer the implant out of a basic position in a spreading direction that is oriented transversely relative to the clamping direction into a spread position in which the upper supporting surface and the lower supporting surface are a greater spacing from each other than in the basic position, and wherein the implant comprises at least one introduction-side upper supporting element and at least one introduction-side lower supporting element that are used for laterally supporting the upper spinous process and the lower spinous process on the introduction-side, respectively, in the spread position of the implant, wherein the apparatus comprises a fixing device for the implant that is used for spreading the at least one introduction-side upper supporting element and the at least one introduction-side lower supporting element relative to each other along the spreading direction and by means of which fixing device the implant is movable from the basic position into an introduction position in which the at least one introduction-side upper supporting element and the at least one introduction-side lower supporting element are at a greater spacing relative to each other than in the basic position, and from which the implant is transferable into the spread position by moving the second implant component relative to the first implant component along the clamping direction, wherein the implant comprises at least one body-side upper supporting element and at least one body-side lower supporting element for laterally supporting of the upper spinous process and the lower spinous process on the body-side, respectively, in the spread position of the implant, and wherein the surgical apparatus comprises a coupling device having at least one first coupling element which is coupled to an introduction-side supporting element and also at least one second coupling element which is coupled to a body-side supporting element and which, in the introduction position of the implant, cooperates with the at least one first coupling element for decreasing the spacing of the at least one body-side upper supporting element and the at least one body-side lower supporting element from each other relative to their spacing from each other in the basic position of the implant.