Ligament anchor

Details Ligament anchor Ligament anchor

1991-07-01

1992-04-28

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Ligament or tendon

A61F 208

Patent

active

051084317

ABSTRACT:
The ligament anchor is used for fastening an artificial ligament in a bone. The ligament anchor is formed of a clamp sleeve which tapers on the outside and is deformable radially to a smaller inner diameter. The clamp sleeve has projecting saw tooth segments on the inside with steep flanks against the direction of loading for engaging in the inserted ligament. The clamp sleeve is supported by an anchoring sleeve which tapers internally and is inserted in the opening of the bone. For anchoring, the ligament is pulled outwards under pressure against the direction of loading and the clamp sleeve is pressed into the anchoring sleeve in the direction of loading until the saw tooth elements embrace and hold the ligament such that under the built-up pressure and the ligament tension in the direction of loading, self locking of the sleeves take place.

REFERENCES:
patent: 4870957 (1989-10-01), Goble et al.

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