The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2003
Filed:
Sep. 08, 2000
Randall J. Olson, Salt Lake City, UT (US);
Rolf Meyer, CH-2562 Biel, CH;
Other;
Abstract
The device comprises a tubular housing having an axis and comprising a suction ring on its lower end face with an annular recess communicating with a corretor for connection to a suction pump. The housing has first stop means and second stop means. A tubular insert is mounted in the housing for rotation around the axis and axially displacable. The insert has a third stop means cooperating with the first stop means for defining an extended position of the insert and a fourth stop means coacting with the second stop means for defining a retracted position of the insert. The insert further has a micrometer female thread. A tubular knife holder with a knife for cutting a circular cut into the cornea is mounted in the insert. The knife holder has a micrometer male thread threaded into the female thread and a head. A scale and a marking on the head and on the insert are provided for preselecting a depth of the cut in the extended position of the insert.