Hip joint for an artificial leg

US6322594A · kind A · utility

Assignee

• Otto Bock Orthopaedische Industrie Besitz-und Verwaltungs-Kommanditgesellschaft · DE

Inventors

• Herman Boiten · Göttingen, DE
• Helmut Wagner · Duderstadt, DE

Key dates

• Filing date: Jul 27, 2000
• Grant date: Nov 27, 2001
• Expiry date: Jul 27, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/5043
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a hip joint which has an attachment for an artificial leg and which, in order to permit a largely natural walking movement, has the following features: a front link (5) and a rear link (6) are articulated at their respective upper sections, via a first joint connection (1) and a second joint connection (2), respectively, to a front section and a rear section, respectively, of an upper transverse link (7), and are articulated at their respective lower sections, via a third joint connection (3) and a fourth joint connection (4), respectively, to a front section and a rear section, respectively, of a lower transverse link (8); the first and third joint connections (1, 3) together have at least five degrees of freedom; the second joint connection (2) is a hinge pin which with its pivot axis (2a) is approximately perpendicular to the sagittal plane and has one degree of freedom; the fourth joint connection (4) has a pivot axis (4a) with mediolateral and anteroposterior inclination and with one degree of freedom, so that a swiveling about the pivot axis (2a) of the second joint connection (2) causes outward/inward swiveling and abduction/adduction of the lower tr…