Ophthalmic clip

United States Patent [19]

Myer

[li] 4,414,985 [45] Nov. 15, 1983

[54] OPHTHALMIC CLIP

[75] Inventor: Jon H. Myer, Woodland Hills, Calif.

[73] Assignee: Hughes Aircraft Company, El Segundo, Calif.

[21] Appl. No.: 385,356

[22] Filed: Jun. 7, 1982

Related U.S. Application Data

[62] Division of Ser. No. 137,682, Apr. 7, 1980.

[51] Int. CI.3 A61B 5/10

[52] U.S. CI 128/782; 128/774;

128/321; 73/862.54; 24/501

[58] Field of Search 128/774, 782, 321, 325,

128/327; 73/862.53, 862.54; 24/252 R, 137 R,

67.5

[56] References Cited

U.S. PATENT DOCUMENTS

2,205,379 6/1940 Agostineto 24/252 R

2,252,798 8/1940 Arnold 73/862.52 X

2,475,436 7/1949 Roark 24/252 R

2,478,595 8/1949 Richter 128/321

2,596,456 5/1952 Williams 73/167 X

3,326,217 6/1967 Kerr 24/252 R X

3,393,680 7/1968 Curutchet 128/321

3,785,381 1/1974 Lower et al 73/862.54 X

3,797,498 3/1974 Walsh et al 24/252 R X

FOREIGN PATENT DOCUMENTS

199452 7/1967 U.S.S.R 73/862.54

245409 6/1969 U.S.S.R ,. 73/862.53

OTHER PUBLICATIONS

Schillinger, "Prevention of Over-Correction and
Under Correction in Horiz. Strabismus Surgery", Jour-
nal of Ped. Ophth, vol. 3, No. 3, 1966, pp. 38-41.
Scott, "Extraocular Muscle Forces in Strabismus", The
Control of Eye Movements.

Scott, "Active Force Tests in Lateral Rectus Paraly-
sis", Arch. Ophthal, vol. 85, 4/71, pp. 397-404.
Rosenbaum et al., "New Instrument for the Quantita-
tive Determination of Passive Forced Traction", Oph-
thalmology, 2/80, vol. 87, No. 2, pp. 158-163.
Storz Instrument Co., Ophthalmic Surgical Instruments
and Equipment, 12th Edition, 1980.
Scott et al., "A Forceps to Measure Strabismus
Forces", Arch. Ophthal., vol. 88, 9/72, pp. 330-333.
Stephens et al., "Quantitative Forced Duction", Tr.
Am. Acad. Ophth. and Otol., Mar.-Apr. 1967, pp.
324-329.

Storz Eye Instrument Catalog, Pierse-Type Forcep, 12th Edition, St. Louis: CV Mosby, 1977, 1978.

Primary Examiner—Kyle L. Howell

Assistant Examiner—Angela D. Sykes

Attorney, Agent, or Firm—Lewis B. Sternfels; William J.

Bethurum; A. W. Karambelas

[57] ABSTRACT

Apparatus useful in the surgical correction of strabismus comprises a clip (10) attachable to the sclera (52) of an eye, and a dynamometer gauge (12) coupled to the clip to measure torques exerted on the muscle of the eye.

5 Claims, 5 Drawing Figures