Abstract: In a device for injecting bone cement, the discharge direction of the bone cement after insertion of the cannula should be controllable in a certain region. This is made possible through a radial exit aperture (5) which is provided on the front end of the cannula (3). Since the cannula is inserted with the aid of a guide wire (1), it has an orifice (4) on its front end, which orifice must be closed off by means of a ball (15) prior to the injection. A plunger serves to insert the ball (15). So that the situation of the radial aperture (5) is known at all times, even with inserted cannula, the handle (17) of the cannula has an asymmetrical shape.

Abstract: In a device for injecting bone cement, the discharge direction of the bone cement after insertion of the cannula should be controllable in a certain region. This is made possible through a radial exit aperture (5) which is provided on the front end of the cannula (3). Since the cannula is inserted with the aid of a guide wire (1), it has an orifice (4) on its front end, which orifice must be closed off by means of a ball (15) prior to the injection. A plunger serves to insert the ball (15). So that the situation of the radial aperture (5) is known at all times, even with inserted cannula, the handle (17) of the cannula has an asymmetrical shape.

Abstract: Apparatuses and methods of treating a collapsed vertebra may include inserting cannulae into the damaged vertebral body and one or more adjacent vertebral bodies and repositioning the one or more adjacent vertebral bodies by manipulating one or more of the cannulae. Before or after repositioning the vertebral bodies, the method may further include passing through the cannula and into the damaged vertebra a disruption tool for fracturing the damaged vertebral body. Once the cortical bone is broken or otherwise disrupted, the height of the damaged vertebral body may be restored, for example by removing the disruption tool and inserting through the cannula another tool, implant, device and/or material to restore the height of the vertebral body and to restore normal spinal curvature in the affected area. Bone cement, bone chips, demineralized bone or other grafting material or filler may be added with or without an implanted device to augment the damaged vertebral body.

Abstract: The invention relates to an injection device (1), especially for bone cement, comprising A) a syringe base (3) having a longitudinal axis (2), a front end (6), a connecting piece (8) disposed on the front end (6) and having a coaxial bore (21), and a coaxial cavity (4); B) an injection plunger (5), coaxially displaceable in the cavity (4); and C) a cannula (13) which can be linked with the connecting piece (8) and which has a center bore (14) and a rear end (15). The injection device is characterized in that D) the syringe base (3), on its front end (6), has a transition segment (22) having a bore (9) linking the cavity (4) with the bore (21) in the connecting piece (8), E) the bore (9) in the transition segment (22) and the center bore (14), at least on the rear end (15) of the cannula (13), having the same orthogonal cross-sectional area q relative to the longitudinal axis (2).

Abstract: Apparatuses and methods of treating a collapsed vertebra may include inserting cannulae into the damaged vertebral body and one or more adjacent vertebral bodies and repositioning the one or more adjacent vertebral bodies by manipulating one or more of the cannulae. Before or after repositioning the vertebral bodies, the method may further include passing through the cannula and into the damaged vertebra a disruption tool for fracturing the damaged vertebral body. Once the cortical bone is broken or otherwise disrupted, the height of the damaged vertebral body may be restored, for example by removing the disruption tool and inserting through the cannula another tool, implant, device and/or material to restore the height of the vertebral body and to restore normal spinal curvature in the affected area. Bone cement, bone chips, demineralized bone or other grafting material or filler may be added with or without an implanted device to augment the damaged vertebral body.

Abstract: In a device for injecting bone cement, the discharge direction of the bone cement after insertion of the cannula should be controllable in a certain region. This is made possible through a radial exit aperture (5) which is provided on the front end of the cannula (3). Since the cannula is inserted with the aid of a guide wire (1), it has an orifice (4) on its front end, which orifice must be closed off by means of a ball (15) prior to the injection. A plunger serves to insert the ball (15). So that the situation of the radial aperture (5) is known at all times, even with inserted cannula, the handle (17) of the cannula has an asymmetrical shape.

Abstract: In a device for injecting bone cement, the discharge direction of the bone cement after insertion of the cannula should be controllable in a certain region. This is made possible through a radial exit aperture which is provided on the front end of the cannula. Since the cannula is inserted with the aid of a guide wire, it has an orifice on its front end, which orifice must be closed off by means of a ball prior to the injection. A plunger serves to insert the ball. So that the situation of the radial aperture is known at all times, even with inserted cannula, the handle of the cannula has an asymmetrical shape.