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:
Sep. 24, 1996
Filed:
Jan. 09, 1995
Jack W Shields, Santa Barbara, CA (US);
Other;
Abstract
A disposable hollow cylindroid in the form of a cone which wedge impacts an inserted piston-activated medicinal cartridge such that, employing one or two hands, the user can safely aspirate tissue fluid from a patient and inject contained fluid medications via a hollow needle. The leading end of this disposable hollow cylindroid comprises means for stabilizing the hollow needle serving the inserted cartridge. The trailing end is fitted with a separate reusable plunger whose leading end reversibly attaches to the trailing end of the cartridge piston. In operation, the user inserts the cartridge, uses a leading cylindrical cap on the plunger to wedge-impact the cartridge into the cone, attaches the plunger, screws the leading end of the plunger onto the trailing end of the cartridge piston, removes a sheathing cover from the hollow needle, aspirates into or injects fluid from the inserted cartridge, unscrews and extracts the plunger and, finally, discards the hollow cylindroid containing the cartridge and hollow needle into a safe container. An auxiliary shielding system is described to sterile-protect the cartridge before insertion and exposed sharp parts of the hollow needle after use in a patient.