Acetabular implant fixed without cement

The cotyloidal implant has a hemispherical cup (5) forming an internal cavity (10), and an insert (7) engageable into the cavity, the cup being set in place by impaction and having to this effect anchoring asperities (15) provided on its external face, having the form of lozenges and which are conti...

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Bibliographic Details
Main Authors CHARLET CLAUDE, CARTILLIER JEAN CLAUDE, MACHENAUD ALAIN, SETIEY LOUIS, BALAY BRUNO, SEMAY JEAN MARC, VIDALAIN JEAN PIERRE
Format Patent
LanguageEnglish
Published 15.05.2001
Edition7
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PROSTHESES
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:The cotyloidal implant has a hemispherical cup (5) forming an internal cavity (10), and an insert (7) engageable into the cavity, the cup being set in place by impaction and having to this effect anchoring asperities (15) provided on its external face, having the form of lozenges and which are contiguous and imbricated. The cup (5) is provided, on its external face, with two coaxial grooves configured like helical threads (38) having reverse pitches which intersect each other on a large portion of said external face, which are inclined in the direction of the cup opening and which have a depth increasing progressively in the opening direction of the cup (5); due to their intersection, the grooves delimit an important number of asperities (15). The invention provides for the making of a cotyloidal implant which can be anchored to the pelvis without the use of cement and screws.
Bibliography:Application Number: US19980983465