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:
Jun. 17, 1980
Filed:
Dec. 16, 1977
Samuel Meiri, Skokie, IL (US);
Casey Kot, Skokie, IL (US);
B H Rogers, Chicago, IL (US);
Max Epstein, Highland Park, IL (US);
Northwestern University, Evanston, IL (US);
Abstract
A device and its method of operation for assisting in the advancement of an endoscope through the colon or other body passage. The device includes a sleeve having an annular chamber defined in part by an outer wall of elastomeric material. A multiplicity of resilient hollow protrusions are formed in the wall and expand outwardly and rearwardly when the chamber is filled with a suitable fluid under pressure and which retract inwardly and forwardly when the pressure of the fluid is reduced. The device extends about and is secured to the distal end portion of an endoscope and, upon repetitious expansion and retraction of the protrusions by reason of pulsing pressure fluctuations within the chamber, such device helps to advance the scope along a body passage.