摘要:
An implant for stabilizing bones or vertebrae is provided, the implant including an implant body that can be fixed by means of at least a first screw and a second screw to the bone or a vertebra, wherein the implant body includes at least a first hole and a second hole. Each of the first screw and the second screw includes a screw thread. Each of the first hole and the second hole has a threaded portion with an internal thread for cooperating with the screw thread, wherein the threaded portion of at least the first hole is formed of a flexible material. A guiding member that is a separate part is insertable into the implant body such that it is arranged at least partially within the first hole. The guiding member is configured to guide the first screw when the firstscrew is screwed through the threaded portion of the first hole. The second screw is spaced apart from the guiding member when the second screw is screwed through the threaded portion of the second hole.
摘要:
An implant for stabilizing bones or vertebrae is provided, the implant comprising an implant body (1, 100, 100′) which can be fixed by at least one screw (2) to the bone or a vertebra, wherein the implant body comprises at least one hole (9a, 9b, 9c, 9a″, 9b′, 900a, 900b′) which has a threaded portion (91) with an internal thread for cooperating with the screw thread, characterized in that a guiding member (11,11′,11″,111) is provided in the hole which guides the screw when the screw is screwed through the threaded portion (91).
摘要:
An implant for stabilizing bones or vertebrae is provided, the implant comprising an implant body (1, 100, 100′) which can be fixed by means of at least one screw (2) to the bone or a vertebra, wherein the implant body comprises at least one hole (9a, 9b, 9c, 9a′, 9b′, 900a, 900b′) which has a threaded portion (91) with an internal thread for cooperating with the screw thread, characterized in that a guiding member (11,11′,11″,111) is provided in the hole which guides the screw when the screw is screwed through the threaded portion (91).
摘要:
An implant for stabilizing bones or vertebrae includes an implant body with at least a first hole and a second hole that can be fixed by a first screw and a second screw. Each of the screws includes a screw thread. Each of the holes has a threaded portion with an internal thread for cooperating with the screw thread, wherein the threaded portion of at least the first hole is formed of a flexible material. A guiding member that is a separate part is insertable into the implant body such that it is arranged at least partially within the first hole. The guiding member is configured to guide the first screw when the first screw is screwed through the threaded portion of the first hole. The second screw is spaced apart from the guiding member when the second screw is screwed through the threaded portion of the second hole.
摘要:
A fixation device for bones includes a member which has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone.
摘要:
A fixation device for bones includes a member which is to be fixed to one or more bones and has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone. The member can also include a side wall of a cage used in an intervertebral implant device, or can represent a plate of a bone plate assembly.
摘要:
A fixation device for bones includes a member which is to be fixed to one or more bones and has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone. The member can also include a side wall of a cage used in an intervertebral implant device, or can represent a plate of a bone plate assembly.
摘要:
A modular system for stabilization the spinal column or other bones includes a first stabilization element, a second stabilization element to be connected to the first stabilization element, and an outer connection element to connect the first stabilization element to the second stabilization element. An end portion of the first stabilization element and an end portion of the second stabilization element each include a structure engaging with a corresponding structure provided in the outer connection element to establish a form-fit connection.
摘要:
A fixation device for bones includes a member which has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone.
摘要:
A flexible stabilization device for connecting at least two bone anchoring devices which are attached to vertebrae of the spinal column includes a flexible rod made of an elastomer material. The rod has a surface in which at least one recess is provided which is generated by separation of a portion of said elastomer material.