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US 2011/0218580 A1Published application
Bone fixation system with curved profile threads
AssigneeStryker Trauma GmbH
InventorsManuel Schwager, Rene Wirth, Axel Bernhard Cremer
Life of this patent
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Abstract
A bone fastener for use in orthopedic surgery for fixing an implant to bone has a threaded or unthreaded shaft configured to engage bone and a head having a thread on an outer surface to engage the implant. The thread on the head of the fastener has a profile in cross section that includes peaks with a curved shape.
Claims20
A bone fastener for use in orthopedic surgery for fixing an implant to bone, comprising:
- a shaft configured to engage bone;
- and
- a head formed on the shaft, the head having a thread on an outer surface to engage the implant, wherein the thread has a profile in cross section including peaks, wherein the peaks have a curved shape.
An implant system for use in orthopedic surgery for fixation of bone, comprising:
- an implant having an upper surface and a lower surface;
- at least one hole extending through the implant upper surface and lower surface;
- and
- at least one bone fastener comprising a shaft configured to engage bone and a head having a thread on an outer surface to engage the implant, wherein the thread has a profile in cross section including peaks, wherein the peaks have a curved shape.
1 more element
Dependencies are inferred from the claim text.