Title:
BUILT-IN PORTABLE TYPE CORNEA THICKNESS ULTRASONIC MEASURINGDEVICE
Document Type and Number:
Japanese Patent JPS62122640
Kind Code:
A
Abstract:
Disclosed is a completely portable, hand-held digital ultrasonic instrument about the size and shape of an ordinary pen. The housing is contoured such that it can be easily grasped in the manner of a writing pen. An activation button is located on the interior dorsal surface in close approximation to the index fingertip of the user. A liquid crystal display provides a digital readout of the corneal thickness on the barrel of the instrument housing. The instrument incorporates a 10 MHz or 20 MHz solid phase piezoelectric transducer, a microprocessor, a gate array, a hybrid analog circuit, a liquid crystal display, batteries and a removable battery cover. The 20 MHz transducer is attached to a swan neck connector which is attached to the instrument housing. When a 10 MHz transducer is used, it is attached to a truncated conical connector which is also attached to the instrument housing. In addition, a pinjack connector is available to link the unit to other electronic media such as a microcomputer, personal computer, or printer.
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Inventors:
DEIBUITSUDO UOREISU
SUTEIIBUN FUERUDON
SUTEIIBUN FUERUDON
Application Number:
JP22790886A
Publication Date:
June 03, 1987
Filing Date:
September 26, 1986
Export Citation:
Assignee:
DESIGN T MU PAATONAAZU
International Classes:
A61B3/00; A61B3/10; A61B8/08; A61B8/10; A61F9/00; A61F9/013; (IPC1-7): A61B3/10; A61B8/10
Domestic Patent References:
| JP58142008B |
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)