US Patent Application No: 2012/0232,492

Number of patents in Portfolio can not be more than 2000

PREFILLED SYRINGE WITH A LIMITED-WITHDRAWAL PLUNGER ROD

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A risk of injection liquid contamination due to contact of injection liquid in an injection-liquid filled area in a barrel with the surface in an injection-liquid unfilled area in the barrel by causing a plunger of a prefilled syringe to be inadvertently withdrawn by mishandling which may leads to medical malpractice, is eliminated by the invention. Withdrawal of a plunger 14 is limited by engagement of a barrel 12 in which a withdrawal-limiting member 48 is provided and a the plunger 14 in which a withdrawal-limiting member 54 is provided. As a result of this, contact of the injection liquid L prefilled to a liquid-filled area 32 in the barrel 12 with the surface of a liquid-unfilled area 34 in the barrel by withdrawal of the plunger 14 is prevented.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BECTON, DICKINSON AND COMPANYFRANKLIN LAKES, NJ1738
KYOWA HAKKO KIRIN CO., LTD.TOKYO249

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hato, Seiichi Kanagawa, JP 2 0

Cited Art Landscape

Patent Info (Count) # Cites Year
 
DAIKYO SEIKO, LTD. (1)
* 2003/0032,928 Prefilled syringe assembly 4 2002
 
JANSSEN PHARMACEUTICALS, INC. (1)
* 4,367,738 Pre-filled syringe for abusable drugs 60 1981
 
MALLINCKRODT INC. (1)
* 5,380,295 Delivery apparatus with mechanism preventing rearward movement of a piston disposed therein 17 1992
 
Mallinckrodt Medical, Inc. (1)
* 5,472,431 Insert device for facilitating limited aspiration of a delivery apparatus 7 1994
 
MOVERN, VERNA (1)
* 5,183,466 Restricted use hypodermic syringe 20 1991
 
TEXAS PHARMACEUTICALS, INC. (1)
* 5,971,953 Dual chamber syringe apparatus 88 1998
 
Other [Check patent profile for assignment information] (1)
* 7,481,797 Retractable needle single use safety syringe 2 2006
* Cited By Examiner

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