Title:
【発明の名称】交換可能且つ引き込み可能な針座を備える安全な注射器ニードル装置
Document Type and Number:
Japanese Patent JPH06501173
Kind Code:
A
Abstract:
The syringe includes a barrel, a plunger, and an adapter for mounting the needle in the distal end of the barrel. The adapter includes a protrusion projecting away from the needle end and into the barrel defining an annular space between the barrel and the protrusion. The plunger and protrusion have complementary surfaces whereby the plunger may grip the adapter for removal of the adapter into the interior of the barrel after use. The adapter includes vent passages communicating between the central passage through the adapter and the annular space whereby air can be vented from the barrel after receiving fluid within the barrel and prior to injection. Thus, the syringe may be oriented in a vertical position needle end uppermost with the vent passages forming the most superior portion of the barrel interior whereby air may be vented.
Inventors:
Novasek, Laurel A
Fraser Earl
McLean, Donald A.
Fraser Earl
McLean, Donald A.
Application Number:
JP51429891A
Publication Date:
February 10, 1994
Filing Date:
September 10, 1991
Export Citation:
Assignee:
Invairo Medical Devices Limited
International Classes:
A61L2/28; A61M5/32; A61M5/50; A61M5/00; A61M5/31; A61M5/34; (IPC1-7): A61M5/32
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)