Syringe-type container for liquid medicine

• US 20030125671A1
• Filed: 12/16/2002
• Published: 07/03/2003
• Est. Priority Date: 12/28/2001
• Status: Active Grant

• Current Assignee: Nipro Corporation
• Original Assignee: Nipro Corporation
• Inventors: Igarashi, Satoru, Aramata, Masafumi, Yagi, Hideki, Futagawa, Hitoshi
• Granted Patent: US 7,128,731 B2
• Time in Patent Office: Days
• US Class Current: 604/236
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2089 Containers or vials which are to be joined to each other in order to mix their contents combinations of vial and syringe for mixing their contents A61J1/2096
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61M 2005/3201 Coaxially assembled needle cannulas placed on top of another, e.g. needles having different diameters
• CPC Class Codes: A61M 2005/3279 Breaking syringe nozzles or needle hubs
• CPC Class Codes: A61M 2205/192 Avoiding coring, e.g. preventing formation of particles during puncture
• CPC Class Codes: A61M 5/34 Constructions for connecting the needle , e.g. to syringe nozzle or needle hub connecting catheter tubes to hubs A61M25/0014

Abstract

A syringe-type container for liquid medicine comprises a barrel (1) provided with an easily breakable piercing needle (13) at a distal end (111) of a needle-connecting portion (11) thereof; a gasket (2) inserted and held in the barrel (1); and a guide means (3) fitted on the barrel (1) from the distal side thereof. The syringe-type container is so constructed that turning of the guide means (3) relative to the barrel (1) breaks off the piercing needle (13) from the needle-connecting portion (11).

Claims

1. A syringe-type container for liquid medicine, comprising a barrel having a needle-connecting portion and an easily breakable hollow piercing needle coaxially joined to a distal end of the needle-connecting portion;

a gasket liquid-tightly and slidably inserted into the barrel through a proximal end thereof; and

a hollow guide means fitted from the distal side of said barrel on the needle-connecting portion thereof to guide a mouth of a vial toward the needle-connecting portion;

wherein said piercing needle is adapted to be broken off from the needle-connecting portion when said guide means is relatively turned with respect to said barrel.

2. The syringe-type container for liquid medicine according to claim 1, wherein said guide means comprises a fitting portion for connection to the needle-connecting portion, and a guide portion into which the mouth of the vial is slidably fitted, wherein said piercing needle is provided at a portion adjacent to the needle-connecting portion with an engaging portion for engagement with said fitting portion of the guide means, and wherein said fitting portion is provided with an engaging means for engagement with the engaging portion.

3. The syringe-type container for liquid medicine according to claim 2, wherein said engaging portion is made into a shape with a regular polygonal cross section, and the fitting portion corresponding to said engaging portion has a lumen complementary to the shape of said engaging portion.

4. The syringe-type container for liquid medicine according to claim 3, wherein said engaging portion is provided with at least one longitudinal rib, and wherein said fitting portion is provided with at least one longitudinal groove adapted to be engaged with said at least one longitudinal rib.

5. The syringe-type container for liquid medicine according to claim 2, wherein said engaging portion is provided with at least one longitudinal rib, and wherein said fitting portion is provided with at least one longitudinal rib adapted to be engaged with said at least one longitudinal rib of said engaging portion when said guide means is turned around the piercing needle.

6. The syringe-type container for liquid medicine according to claim 1, wherein said container is filled with a liquid medicine.