Container having injection needle-detaching means

• US 4,892,191 A
• Filed: 06/20/1989
• Issued: 01/09/1990
• Est. Priority Date: 07/31/1987
• Status: Expired due to Fees

• Current Assignee: Nissho Corporation (Nitto Denko Corporation)
• Original Assignee: Nissho Corporation (Nitto Denko Corporation)
• Inventors: Nakamura, Motohiko
• Primary Examiner(s): Ostrager, Allen M.
• Application Number:
  US07/368,888
• Time in Patent Office: 203 Days
• Field of Search: 206/365, 206/366, 206/63.5, 225/93
• US Class Current: 206/366
• CPC Class Codes: A61M 5/3205 Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles for sharps A61B50/362; disintegrating apparatus in general B02C, e.g. B02C19/0075, B23H9/001; disposal of medical waste in general B09B3/00; receptacles for refuse disposal in general B65F1/00

Abstract

A container having an injection needle-detaching means for containing used injection needles comprising: a closed container for containing injection needles, and a needle-detaching means for detaching a slip type injection needle from a syringe, said needle-detaching means comprising a first opening provided in a wall of said container for inserting said needle attached to said syringe, a second opening extending laterally from said first opening, and a sliding portion provided on each of both sides of said second opening, said first opening having a size larger than the largest part of said needle, said second opening having a width larger than the diameter of the nozzle of said syringe and smaller than the diameter of the hub of said needle, each sliding portion having a wedge-like shape. When the nozzle portion of a syringe to which a slip type needle is attached is inserted into the second opening, each sliding portion is inserted into the spacing between the shoulder portion of the injection barrel and the bottom end of the hub of the needle like a wedge, thereby separating the needle from the nozzle. By using the container, the slip type needle can be detached from the syringe with safety without touching the needle with finger and contained directly thereinto.

Claims

1. A container having an injection needle detaching means for containing used injection needles comprising:

a closed container for containing injection needles, and

a needle-detaching means for detaching a slip type injection needle from a syringe,

said needle-detaching means comprising a first opening provided in a wall of said container for inserting said needle attached to said syringe, a second opening extending laterally from said first opening, and a sliding portion provided on each of both sides of said second opening,

said first opening having a size larger than the largest part of said needle,

said second opening having a width larger than the diameter of the nozzle of said syringe and smaller than the diameter of the hub of said needle,

each of said sliding portion having a side wall defining said second opening,

each of said side walls having, at the entrance of the second opening from said first opening, a thickness smaller than a distance between the root of the nozzle of said syringe and the bottom end of the hub of said needle when the needle is being attached to said syringe, each of said side walls being made gradually thicker toward the closed end of said second opening, the maximum thickness of each side wall being larger than said distance, the surface of said sliding portion on the rear side of said wall of said container, on which the bottom surface of the hub slides, forms a surface inclined both in the direction of the first opening and in the direction of the second opening.

2. The container of claim 1, in which the angle between both edge liens of each slide wall in the longitudinal direction of said second opening is from 5°

to 45°

.

3. The container of claim 1, in which each of said side walls has substantially the same thickness as that of said wall of said container at said entrance, and a wedge-like portion is provided on each of both sides of said second opening on the rear side of said wall of said container so that the surface of each wedge-like portion which inclines in the direction of the first opening constitutes said inclined sliding surface on which the bottom end of the hub slides.

4. The container of claim 1, in which said wall of said container has a thickness larger than said distance, and the rear side of said wall on each of both sides of said second opening is cut off and forms said inclined surface both in the direction of the first opening and in the direction of the second opening so that the inclined surface constitutes a sliding surface on which the bottom end of the hub slides.