Surgery – Truss – Pad
Patent
1980-12-22
1981-12-15
Thaler, Michael H.
Surgery
Truss
Pad
128 92R, 128 92E, A61B 1700
Patent
active
043053947
ABSTRACT:
Disclosed is an acetabular prosthetic cup positioning instrument for use in positioning such cup during total hip surgery. The acetabular cup has a convex outer portion that is disposed in the patient's reamed and prepared acetabulum, the cup has an inner cavity and the cup has a rearward-most portion between such outer portion and inner cavity defining a rim portion. The instrument has an interchangeable ball and flange for respective engagement with such cup's inner cavity and rim portion to mount, orient and align such cup relative to such instrument. A drive mechanism, operatively connected through a drive coupling rod, flexible drive cable and drive member and carrying such ball, effects translatory movement of such ball away from such flange while such ball maintains its engagement with such cup's inner cavity to thereby disengage such flange away from such cup's rim portion.
Also disclosed is an interchangeable ball and flange for use with an instrument for positioning an acetabular prosthetic cup of a particular size and type during total hip surgery. Such interchangeable ball and flange mounts, orients and aligns a particular size and type of cup relative to such instrument. Such interchangeable ball and flange can be replaced by another interchangeable ball and flange of a different, particular size and type to mount, orient and align an acetabular cup of such correspondingly different, particular size and type.
REFERENCES:
patent: 2905178 (1959-09-01), Hilzinger
patent: 3859992 (1975-01-01), Amstutz
patent: 3877433 (1975-04-01), Librach
Zimmer Catalog, pp. 1 and A34, (1978).
Richards Orthopedic Catalog, Cover Page and pp. 2, 6 and 7, (1969).
Thaler Michael H.
Wessendorf, Jr. Walter F.
LandOfFree
Acetabular cup positioning instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acetabular cup positioning instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acetabular cup positioning instrument will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1899650