Title:
【発明の名称】内視鏡性能特性の自動化された評価方法及び装置
Document Type and Number:
Japanese Patent JP2000511288
Kind Code:
A
Abstract:
In an automated method and apparatus for evaluating the performance characteristics of endoscopes, a computer system receives and stores a first set of test signals indicative of the results of the tests performed. Each test is preferably performed by transmitting a beam of light defining a predetermined intensity pattern through the endoscope from a first end to a second end of the endoscope, and the test signals are indicative of the optical intensity at each of a plurality of predetermined locations within the transmitted beam. The test signals thereby provide an indication of the degree to which the endoscope attenuates the beam intensity. In the preferred embodiment, the following tests are performed in order to evaluate both the optical fibers and lens system of each endoscope: (i) a light loss test, (ii) a reflective symmetry test, (iii) a lighted fibers test, (iv) a geometric distortion test, and (v) a modulation transfer function (MTF) test. The computer system has a database of threshold values, each of which corresponds to a respective test and is used to determine if test results indicate acceptable or unacceptable performance characteristics. The test signals are compared with the threshold values, and the computer system generates a second set of signals indicative of one or more performance characteristics, which are responsive to both the test signals and signals indicative of the test type.
Inventors:
Raw Eric
Adam joseph
Adam joseph
Application Number:
JP54085198A
Publication Date:
August 29, 2000
Filing Date:
March 20, 1998
Export Citation:
Assignee:
Hartford Hospital
International Classes:
A61B1/00; G01M11/00; G01M11/02; (IPC1-7): G01M11/02; A61B1/00
Attorney, Agent or Firm:
Kunio Miura