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US 10,307,194 B2Granted
Spinal implant and method of manufacture
AssigneeWarsaw Orthopedic, Inc.
InventorsDale A. Tempco, Rodney Ray Ballard, Matthew D. May
Life of this patent
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Abstract
A bone fastener includes a screw shaft having a proximal portion and a distal portion. The proximal portion is formed by a first manufacturing method and defines a distal face. The distal portion is formed onto the distal face by a second manufacturing method. In some embodiments, systems, spinal constructs, surgical instruments and methods are disclosed.
Claims20
A bone fastener comprising:
- a screw shaft including a proximal portion and a distal portion,
- the proximal portion being formed by a first manufacturing method and defining a distal face,
- the distal portion being formed onto the distal face by a second manufacturing method.
A method for fabricating a bone fastener, the method comprising the steps of:
- forming a proximal portion of a screw shaft of a bone fastener by a first manufacturing method, the proximal portion defining a distal face;
- generating a digital representation of a configuration of a distal portion of the screw shaft;
- storing the digital representation on a database coupled to a processor;
- and
- forming the distal portion by a second manufacturing method that includes an additive manufacturing method such that the processor instructs an additive manufacturing apparatus to form the distal portion onto the distal face.
2 more elements
A bone fastener comprising:
- a head;
- and
- a threaded shaft including a proximal portion and a distal portion,
- the proximal portion being formed by a subtractive, deformative or transformative manufacturing method to include a first thread form and define a distal face,
- the distal portion being formed onto the distal face in a layer by layer formation by an additive manufacturing method, the distal portion including a second thread form.
2 more elements
Dependencies are inferred from the claim text.