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:
Aug. 02, 1994
Filed:
Oct. 15, 1993
Francis W Price, Jr, Indianapolis, IN (US);
Other;
Abstract
A corneal press is disclosed for accurately trephining corneal tissue. The disclosed press includes a base support member, a modular cutting block, two guide posts, a collet mount, a threaded drive mechanism, and a set of modular collets. The base includes means for securely holding the cutting block in position for holding a corneal specimen to be cut about a defined axis. The guide posts are attached to the base in offset parallel alignment relative to the defined axis. The collet mount is mounted onto the guide posts and is slidable relative thereto toward and away from a corneal specimen positioned on the cutting block mounted onto the base. The threaded drive mechanically links the collet mount to the base such that the operation of the threaded drive causes the collet mount to move along said guide posts toward or away from a specimen positioned on the base. Each of a set of modular collets are mountable to the collet mount and are configured to securely hold a trephine of a specifically defined diameter in centered alignment about the defined axis. When so positioned for a cutting operation, the operation of the threaded drive causes the trephine to move along the defined axis and to precisely cut a specimen of corneal tissue positioned on the base about said axis. An alignment sight hole, which extends through collet mount in alignment with said defined axis and which is co-aligned with a sight hole extending a collet mounted therein, allows for the visual alignment of the cut to be made and also provides a means for directing illumination onto the cutting area during a cutting procedure.