Title:
RETRACTABLE SAFETY PENETRATING INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/1993/010837
Kind Code:
A1
Abstract:
A retractable safety penetrating instrument includes a cannula (14) and a needle (12) disposed within the cannula and supported in a manner to automatically move proximally from an extended position wherein a sharp distal end (18) of the neddle protrudes from the cannula to a retracted position wherein a sharp distal end (18) of the needle protrudes from the cannula to a retracted position wherein the sharp distal end of the needle is protected in response to distal movement of the retractable safety penetrating instrument upon penetration into a cavity in the body. A retracting mechanism (48) moves the needle proximally, is normally locked in a position preventing proximal movement of the needle and is released by distal movement of an operating member (68) to trigger retraction of the needle.
Inventors:
YOON INBAE (US)
Application Number:
PCT/US1992/010473
Publication Date:
June 10, 1993
Filing Date:
December 04, 1992
Export Citation:
Assignee:
YOON INBAE (US)
International Classes:
A61B17/34; A61M25/14; A61B17/00; A61B19/00; (IPC1-7): A61M5/178
Foreign References:
| US4931042A | 1990-06-05 | |||
| US5152754A | 1992-10-06 | |||
| US4654030A | 1987-03-31 |
Other References:
See also references of EP 0615455A4
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