Flexible stabilization device including a rod and tool for manufacturing the rod
AssigneeBiedermann Technologies GmbH & Co. KG
InventorsLutz Biedermann, Wilfried Matthis, Martin Pabst, Berthold Dannecker
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Abstract
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.
Claims21
A flexible stabilization device for connecting at least two bone anchoring devices which are attachable to vertebrae of the spinal column, comprising:
- a flexible rod made of an elastomer material;
- the rod having a surface in which at least one first recess is provided which is generated by punching out a portion of said elastomer material from the rod-shaped element.
-10. (canceled)
A tool for separating material from a rod-shaped element comprising an elastomer material for use in a flexible spinal stabilization device , the tool comprising:
- a socket die having:
- a first bore with a first bore axis, the first bore configured to receive the rod-shaped element along the first bore axis;
- a second bore with a second bore axis offset from the first bore axis, the second bore intersecting the first bore;
- a third bore with a third bore axis offset from the first bore axis and offset from the second bore axis, the third bore intersecting the first bore;
- a first punching press having a cutting portion, the first punching press being moveable in the second bore between a first position wherein the cutting portion is outside the first bore and a second position wherein the cutting portion is in the first bore;
- and
- a second punching press having a cutting portion, the second punching press being moveable in the third bore between a first position wherein the cutting portion is outside the first bore and a second position wherein the cutting portion is in the first bore.
A method of manufacturing a rod-shaped element comprising an elastomer material for use in a flexible spinal stabilization device, the method, comprising:
- inserting the flexible rod-shaped element in a tool;
- and
- separating a portion of the elastomer material from the flexible rod-shaped element by punching out the portion with a punching press of the tool to form at least one recess in a surface of the flexible rod-shaped element.
Dependencies are inferred from the claim text.