AN Oto-Micromanipulator

Abstract

Not only a microscope of highest standard but also suitable fine operation instruments play a determining role in the modern oto-microsurgery. All surgeons agree with the statement that the principle cause of the failures is the weakness of the technical performance.—No matter how sensitive the human hand may be, it cannot stand comparison with an ingeniously constructed apparatus. One of these is the micromanipulator which is used within medical areas, where the most subtle work has to be done.—Fig. 1 shows an oto-micromanipulator, constructed by a team of Erikson-Herberts-Nylén-Södergren-Tove. It is easily movable in three planes in contrast to other micromanipulators with mobility in only one plane. All movements are performed on ball-bearings, and an alteration of the handle (A) one cm in every direction corresponds to a change of about one mm of the manipulator-probe, where any desirable operating instrument can be mounted.—The gross adjustment can be made on the same stand as Zeiss operating microscope, while the fine one is performed with the above-mentioned handle within a radius of one centimeter.