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US005716328A
United States Patent [19] [ii] Patent Number: 5,716,328
Grieshaber et al. [45] Date of Patent: Feb. 10,1998
[54] IRIS RETRACTOR FOR USE IN SURGICAL PROCEDURE ON THE EYE OF A LIVING BEING
[75] Inventors: Hans R. Grieshaber, Schaffhausen, Switzerland; Kazuaki Kadonosono. Yokohama, Japan
[73] Assignee: Grieshaber & Co. AG Schaffhausen,
Schafihausen, Switzerland
[21] Appl. No.: 794,320
[22] Filed: Feb. 3,1997
[30] Foreign Application Priority Data
Aug. 7, 1996 [CH] Switzeriand 19961934/96
[51] Int CI.6 A61B 17/02
[52] U.S. CI 600/206; 600/227; 600/236
[58] Field of Search 600/201, 206,
600/208, 209, 227, 235, 236
[56] References Cited
U.S. PATENT DOCUMENTS 4,190,042 2/1980 Sinnieich 600/206 X
An iris retractor for use in ophthalmic surgery, includes an elongated body portion for insertion through an incision in the eye to retract the iris, with the body portion including two parallel shafts secured to each other along a common longitudinal edge wherein each shaft has at least one end formed with a hook-shaped member. The shafts of the body portion are so joined together that the hook-shaped members diverge from the longitudinal edge downward at an angle to one another to exhibit a A-shaped configuration, and exhibit parallel shanks which are spaced from each other at a distance, the dimension of which depends on the angle between the hook-shaped members.
12 Claims, 3 Drawing Sheets
