3815604 is referenced by 336 patents and cites 4 patents.

A pneumatically operated intraocular surgery apparatus which is of very light weight and small size, the part inserted into the eye having a diameter of 1 mm. or less. One embodiment of the invention employs a high frequency electric current electrode for cutting or severing vitreous or other material, said electrode being provided with means for removing coagulated material adhering thereto. Other embodiment of this invention which are also of very small size and light weight employ concentric tubes with a pneumatic means for moving one of the tubes with respect to the other at a slow or fast rate so that vitreous sucked into one of the tubes is sheared off by the sharp end of the other tube and the severed vitreous is sucked into a calibrated cylinder and at the same time saline solution is automatically supplied to the eyeball to replace the removed vitreous.

Apparatus for intraocular surgery
Application Number
Publication Number
Application Date
June 19, 1972
Publication Date
June 11, 1974
Heintz Sr Ralph M
O Malley Conor C
Allen & Chromy
A61m 01/00
A61b 17/32
A61B 17/00
A61M 01/00
A61F 09/07
A61B 18/12
View Original Source