Prosthetic band
AssigneesSulzer Brothers Limited, Protek AG
InventorChristian Mansat
Life of this patent
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Abstract
The prosthetic band is formed of concentric flexible sleeve-like elements formed of braided filaments for use as a transverse ligament for a knee joint. The band has a central flexible zone having a longitudinal stretchability of from 5 to 25 percent in response to a tension of 50 N/square millameters while also having relatively rigid end zones for anchoring to a bone. The flexible zone of the band can be drawn into a bore in a bone while under tension and, upon release of the tension, the flexible zone will swell up in the bore to ensure intimate contact with the bone tissue.
Claims15
A prosthetic band comprising a plurality of concentric sleeve-like elements defining a shaft having a central flexible zone and a pair of rigid end zones, said central flexible zone having a diameter of from 1.2 to 2.0 times the diameter of a respective rigid end zone, said central zone being axially stretchable.
A prosthetic band comprising a plurality of equal length concentric sleeve-like elements defining a shaft having an axially stretchable and flexible central zone and a pair of rigid end zones, said central flexible zone having a diameter of from 1.2 to 2.0 times the diameter of a respective end zone.
A prosthetic band comprising a plurality of equal length concentric sleeve-like elements defining a shaft having an axially stretchable and flexible central zone and a pair of rigid end zones, said central flexible zone having a diameter of from 8 to 12 millimeters in an unstressed state and each end zone has a diameter of approximately 7 millimeters.
Dependencies are inferred from the claim text.