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, 1994
Filed:
Aug. 06, 1991
Jonathan L Wacks, Forest Hills, NY (US);
Senetek PLC, St. Louis, MO (US);
Abstract
A disposable two-component safety syringe with retractable injection needle adapted for the separate storage of medicament and medicament solvent and the pre-injection mixing thereof. The cartridge-type syringe is adapted to be used manually or in conjunction with an automatic injection/aspiration device for breaching a temporary seal between chambers for the medicament and medicament solvent immediately prior to injection are also provided. Pre-measured medicament is provided in a form which requires no pre-injection agitation. The cartridge is also provided with an injection needle disposed completely within the cartridge housing for safely and sanitarily withdrawing the injection needle to reside completely within the disposable cartridge after use. In one embodiment of the invention, a pushrod for automatically agitating the mixing components is provided.