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:
Jul. 19, 1983
Filed:
Feb. 26, 1981
Wolfgang Wagner, 1 Berlin 65, DE;
Other;
Abstract
A suction injector comprises a suction cup and an exchangeable cannula inserted into the cup for injecting a liquid medicine under human skin by the action of a piston movable in a cylinder. The suction cup is formed with an outer chamber which accumulates negative pressure and an inner chamber closed with a membrane which is placed over the skin to be treated. A tubular member is provided in the suction cup having a number of flexible projections adapted to prevent communication of the negative pressure in the outer chamber to the inner chamber until the membrane is in pressure contact with the skin and to break this communication when the membrane with the skin are lifted towards the cannula.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile