초록 ▼

A gas-powered, single-use, needle-less jet injection device (10, 210, 410) includes a hand-held injector (12, 212, 412), and a drug injection cartridge (14, 114, 414) which provides a volume of liquid medication to be injected, an injection orifice, and an injection piston. Forceful movement of the

A gas-powered, single-use, needle-less jet injection device (10, 210, 410) includes a hand-held injector (12, 212, 412), and a drug injection cartridge (14, 114, 414) which provides a volume of liquid medication to be injected, an injection orifice, and an injection piston. Forceful movement of the injection piston causes an injection jet of medication to be expelled from the injection orifice. The injection device also includes a hermetically sealed gas pressure cartridge (82, 182, 382) which remains sealed until the moment of injection and powers the jet injection after opening of this cartridge.

대표청구항 ▼

A gas-powered, single-use, needle-less jet injection device (10, 210, 410) includes a hand-held injector (12, 212, 412), and a drug injection cartridge (14, 114, 414) which provides a volume of liquid medication to be injected, an injection orifice, and an injection piston. Forceful movement of the

A gas-powered, single-use, needle-less jet injection device (10, 210, 410) includes a hand-held injector (12, 212, 412), and a drug injection cartridge (14, 114, 414) which provides a volume of liquid medication to be injected, an injection orifice, and an injection piston. Forceful movement of the injection piston causes an injection jet of medication to be expelled from the injection orifice. The injection device also includes a hermetically sealed gas pressure cartridge (82, 182, 382) which remains sealed until the moment of injection and powers the jet injection after opening of this cartridge. , 1992: 399-401. Rosman et al., Diagnosis of Colon Cancer by Lavage Cytology with an Orally Administered Balanced Electrolyte Solution, The American Journal of Gastroenterology, vol. 89, No. 1, 1994 51-56. McAfee et al., Tiny snares prove safe and effectivefor removal of diminutive colorectal polyps, Gastrointestinal Endoscopy, vol. 40, No. 6, 1994: 301-303. Ma Eltumi et al., A comparison of endoscopic and capsule small intestinal biopsy techniques in children with upper gastrointestinal disorders, Journal of Paediatr. Child Health vol. 32, 1996: 255-256. Swain, What Endoscopic Accessories Do We Really Need? Emerging Tec