EP0424734B1 | 合法醫療器材資訊網
Inthecaseofnonself-tappingscrewstherelativefemalethreadhastobeformed...Thecavityforreceivingthescrewisformedbyrotarytoolsmountedonhand-controlleddrills....Specifically,thecutteriscooledbysterileliquidwhichalsoperf
This invention relates to means for fixing prostheses to bones, and more specifically to screw devices for effecting this fixing.
As is well known, in terms of mechanical characteristics bone tissue can be divided into two distinct regions, namely the cortical bone region with an elastic modulus of between 1000 and 1200 dN/mm² and the spongy region, of trabecular bone tissue containing medulla or fat, with an elastic modulus of roughly between 20 and 400 dN/mm².
Currently, to execute an implant in any bone, use is made of known bone screws which have a substantially cylindrical shank and are constructed of a biocompatible metal such as titanium, austenitic stainless steel, tantalum, niobium or zirconium. These screws require a cylindrical hole to be previously drilled in the bone.
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Sheet1 A B C D E F G H 1 製造廠名稱 製造廠地址 登錄號碼 ... | 合法醫療器材資訊網
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【"布倫貝斯"牙科手用器械(未滅菌)】許可證字號:衛部醫器輸壹字第014391號
器材品名:"布倫貝斯"牙科手用器械(未滅菌)許可證字號:衛部醫器輸壹字第014391號註銷狀態:註銷日期:註銷理由:有效日期:2019/0...