UNTERLEGSCHEIBE MIT GEWINDE

A threaded washer with a central bore for use with a bone screw is disclosed. The washer is threaded into a counterbore extending below the bone surface and into cancellous bone material. The external washer threads are tapered to provide improved purchase. The bone screw is inserted through the cen...

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Bibliographic Details
Main Author SCHENK, BEAT
Format Patent
LanguageGerman
Published 21.11.2002
Edition7
Subjects
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
DIAGNOSIS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
LIGHTING
MECHANICAL ENGINEERING
MEDICAL OR VETERINARY SCIENCE
SURGERY
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A threaded washer with a central bore for use with a bone screw is disclosed. The washer is threaded into a counterbore extending below the bone surface and into cancellous bone material. The external washer threads are tapered to provide improved purchase. The bone screw is inserted through the central bore of the washer and threaded into the fragment beyond the fracture. The washer provides improved compressive forces while permitting the bone screw head to be located beneath the bone surface.
Bibliography:Application Number: DE19966020793T