Title:
PRE-FILLED SAFETY VIAL INJECTOR
Document Type and Number:
WIPO Patent Application WO2002072173
Kind Code:
A3
Abstract:
A method and apparatus (10, 110, 210) are provided for injecting medicine from a pre-filled container (70, 190, 270) into a patient through an injection needle (39, 112, 239). After use the needle (39, 112, 239) is automatically shielded so that the contaminated needle is protected to prevent inadvertent contact with the needle. The device operates by pumping medicine out of the vial (70, 190, 270) into a transfer chamber (60, 155, 260). The medicine is the expelled from the transfer chamber (60, 155, 260) into the patient during an injection stroke. At the end of the injection stroke, the needle (39, 112, 239) is released for retraction, and a spring (37, 126, 237) then retracts the needle to shield the needle. Preferably, the device includes an injector assembly (15, 115, 215) and a vial holder assembly (40, 150, 240). The injector assembly (15, 115, 215) has a needle retainer (30, 120, 230) for releasably retaining the needle in a projecting position against the bias of the spring (37, 126, 237). The vial holder assembly (40, 150, 240) is attachable with the injector assembly (15, 115, 215) and is operable to transfer the medicine out of the vial (70, 190, 270) and into the transfer chamber (60, 155, 260) to prepare the device for an injection.
Inventors:
BARKER JOHN (US)
HALSETH THOR (US)
CHALLIOL BERNARDO (US)
MCWETHY ROBERT (US)
KOVALSKI JOSEPH (US)
HALSETH THOR (US)
CHALLIOL BERNARDO (US)
MCWETHY ROBERT (US)
KOVALSKI JOSEPH (US)
Application Number:
PCT/US2002/007859
Publication Date:
October 16, 2003
Filing Date:
March 13, 2002
Export Citation:
Assignee:
MDC INVEST HOLDINGS INC (US)
BARKER JOHN (US)
HALSETH THOR (US)
CHALLIOL BERNARDO (US)
MCWETHY ROBERT (US)
KOVALSKI JOSEPH (US)
BARKER JOHN (US)
HALSETH THOR (US)
CHALLIOL BERNARDO (US)
MCWETHY ROBERT (US)
KOVALSKI JOSEPH (US)
International Classes:
A61M5/32; A61M5/24; (IPC1-7): A61M5/00
Foreign References:
| US5199949A | 1993-04-06 | |||
| US5368568A | 1994-11-29 | |||
| US4755169A | 1988-07-05 | |||
| US5358489A | 1994-10-25 | |||
| US5067948A | 1991-11-26 | |||
| US6224568B1 | 2001-05-01 | |||
| US5330426A | 1994-07-19 | |||
| US5354284A | 1994-10-11 |
Other References:
See also references of EP 1372756A4
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