초록 ▼

A fastening device for a prosthesis, the fastening device having a cylindrical channel and inclined washer designed to accept insertion of a cylindrical insert, such as a tube, bar or peg, with minimal resistance and yet substantially prevent withdrawal of the cylindrical insert from the fastening d

A fastening device for a prosthesis, the fastening device having a cylindrical channel and inclined washer designed to accept insertion of a cylindrical insert, such as a tube, bar or peg, with minimal resistance and yet substantially prevent withdrawal of the cylindrical insert from the fastening device unless a release mechanism is operated to permit withdrawal. The device permits rotation of the cylindrical insert with respect to the fastening device while still securely fastening the cylindrical insert within the fastening device, so as to prevent unlocking of the device and separation of the cylindrical insert.

대표청구항 ▼

[ What is claimed is:] [1.] A device for fastening a prosthesis on to a prosthesis sleeve, wherein the prosthesis sleeve is equipped with a cylindrical peg having a smooth end, the device comprising:a housing;a cylindrical channel positioned within the housing adapted to receive the peg;a recess pos

[ What is claimed is:] [1.] A device for fastening a prosthesis on to a prosthesis sleeve, wherein the prosthesis sleeve is equipped with a cylindrical peg having a smooth end, the device comprising:a housing;a cylindrical channel positioned within the housing adapted to receive the peg;a recess positioned within the housing;a first spring positioned within the recess;a second spring positioned within the recessan inclined washer having a central aperture, the washer being received within the recess and is kept inclined by spring force by the first and second springs in such a way that the central aperture, which is slightly greater than the diameter of the peg, prevents, movement of the fastening device axially along the peg even if the fastening device is rotated about the peg, anda contact point against which the washer is borne by the first spring which is diametrically opposed to the contact point and the second spring which is between the contact point and the center of the washer to ensure that the washer is kept in contact with the contact point, wherein the contact point being a low friction surface between the washer and the housing and wherein the contact point preventing axial movement of the peg while allowing the housing to be rotated about the peg.