IMPLANT ET SON PROCEDE DE FABRICATION

• Main Author: PHILLIP J. ANDERSON ET JACK E. PARR
• Format: Patent
• Language: French
• Published: 07.03.1986
• Edition: 4
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DIAGNOSIS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SURGERY; TREATMENT OR PROTECTION OF EYES OR EARS

LA PRESENTE INVENTION A POUR OBJET UN PROCEDE DE FABRICATION D'UN ELEMENT DE PROTHESE POUR IMPLANTATION CORPORELLE.CE PROCEDE CONSISTE :A PREPARER UN ELEMENT DE BASE PRESENTANT UNE ZONE DE SURFACE POREUSE SUR LAQUELLE DE LA SUBSTANCE OSSEUSE DOIT SE FIXER;A PREPARER UN MATERIAU DE REVETEMENT;A APPLIQUER LEDIT MATERIAU SUR UNE PARTIE AU MOINS DE LADITE ZONE DE SURFACE POREUSE, EN PRODUISANT UNE ENERGIE SUFFISANTE POUR TRANSFORMER LEDIT MATERIAU DE TELLE SORTE QU'IL DEVIENNE BIOABSORBABLE. An implantable prosthesis including a base member, such as the stem of a hip joint prosthesis, having a porous region on its surface, and the region of porosity being coated with a bioabsorbable material, such as alpha -tricalcium phosphate, which enhances permanent bone ingrowth into the region. A method of manufacture of the prosthesis includes the steps of providing a coating material and applying the material to at least a portion of the porous surface of the base member, while providing energy sufficient to transform the material to a state in which it is bioabsorbable. In the preferred embodiment the material is plasma sprayed onto the porous surface of the base member.