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:
Nov. 01, 1983
Filed:
Oct. 06, 1980
Kiyoshi Chikashige, Kawagoe, JP;
Kabushiki Kaisha Medos Kenkyusho, Kawagoe, JP;
Abstract
A suction device for an endoscope in which there is no need for the operator to close a suction pipe with his finger and in which cleaning and sterilizing are readily implemented. A suction path extends from a forceps insertion hole in a forceps receiver. A plug assembly is detachably inserted in the suction path in close contact therewith. The plug assembly includes a piston at least a portion of which is made of an elastic material and a cylinder member into which the piston is loosely fitted. The cylinder member has valve seats formed at first and second ends thereof while the piston is furnished with corresponding first and second abutting portions. An elastic extended member biases the piston outwardly. A suction hole is formed in the cylinder member through which suction pressure is communicated.