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. 25, 2003
Filed:
Jun. 26, 2001
John B. Slate, San Diego, CA (US);
Michael W. Burk, San Marcos, CA (US);
Lanny A. Gorton, San Diego, CA (US);
Avant Drug Delivery Systems, Inc., San Diego, CA (US);
Abstract
A device for providing medication for injection by a jet injector includes a cassette which connects an injector system to a reservoir. The cassette forms a fluid pathway at an interface of a cassette lower body and a cassette upper body. The cassette also forms an impulse chamber with a nozzle leading therefrom. The fluid pathway interconnects the reservoir with the impulse chamber. The medication flows from the reservoir along the fluid pathway and into the impulse chamber. Force from an impulse generator drives the fluid medicament from the impulse chamber through the nozzle, out an orifice in a tip of the nozzle, and into the skin of a patient. To prevent the pressure waves generated by the jet injector from breaking a glass cartridge in the reservoir, the fluid pathway is blocked, using a series of right angles or valves.