Bone fixation plate

An apparatus for reducing the profile of a bone fixation plate while preventing backing out of screws is disclosed. The plate has at least two openings though which two screws can pass through bony tissue. The apparatus includes at least one section of relief and sections of engagement. As the screw...

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Bibliographic Details
Main Authors Hansell, Matthew, Binder, Lawrence J
Format Patent
LanguageEnglish
Published 24.11.2020
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
DIAGNOSIS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PROSTHESES
SURGERY
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:An apparatus for reducing the profile of a bone fixation plate while preventing backing out of screws is disclosed. The plate has at least two openings though which two screws can pass through bony tissue. The apparatus includes at least one section of relief and sections of engagement. As the screw is tightened, it will begin to lag the plate to the bone. When the screw head interferes with the plate at the interference point, there is a slight resistance that insertion forces can overcome. When the screw is advanced further, it snaps into the sliding fit area and is allowed to move freely. The forces that cause the screw to back out from the plate are preferably not strong enough to pass the screw head back past the interference section. At least one of the two openings is configured as an elongated slot to allow the screw to translate in the slot. It may be desirable to include a set screw to help prevent backout.
Bibliography:Application Number: US201615089924