Breakaway syringe and disposal apparatus

• US 6,036,671 A
• Filed: 07/17/1997
• Issued: 03/14/2000
• Est. Priority Date: 07/17/1997
• Status: Expired due to Fees

• Current Assignee: William J. Frey
• Original Assignee: William J. Frey
• Inventors: Frey, William J.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US08/895,761
• Time in Patent Office: 971 Days
• Field of Search: 604/110, 604/187, 604/192, 604/263, 206/364, 206/365
• US Class Current: 604/110
• CPC Class Codes: A61M 2005/3279 Breaking syringe nozzles or needle hubs
• 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 breakaway intravenous needle device, including a syringe and needle assembly, and a disposal apparatus for removing, retaining and discarding needles attached to the intravenous needle device. The breakaway syringe comprises a syringe barrel which extends from a proximal barrel end to a distal barrel end. A nozzle extends distally from the distal barrel end and includes a weakened portion. Bending of the syringe barrel relative to the nozzle distal end causes the syringe to break along the weakened portion. When coupled with a needle hub and needle assembly and used with the disposal apparatus of the present invention, the syringe and attached needle assembly are held stationary within an aperture disposed on the disposal apparatus. The syringe barrel may then be moved laterally or otherwise bent relative to the needle hub to break the syringe along the weakened portion of the nozzle. The needle hub and needle assembly, now broken away from the remainder of the syringe fall freely into the disposal apparatus. A locking mechanism is provided within the aperture to prevent the removal of the needle hub and attached needle assembly once inserted within the disposal apparatus. A cover is also disclosed to facilitate the bending and breaking of the syringe relative to the needle hub and needle assembly and to provide additional user protection.

Claims

1. An apparatus adapted for use with a syringe having a body including a barrel and a nozzle, and an attached needle assembly including a hub and a needle, and said apparatus comprising:

a container having a base and at least one side wall, said container body adapted to contain said needle hub needle assembly and a portion of said syringe body;

an upper portion of said container, said upper portion having an aperture for receiving at least said needle hub, said aperture having a generally rigid aperture wall for supporting the needle hub and attached syringe body;

a locking mechanism having a locking tip moveable within the aperture for engaging the needle hub and preventing the removal of the needle hub from the container;

wherein

the needle hub is held in a generally fixed relationship with the aperture of the container, permitting lateral movement of the syringe to facilitate breaking the syringe at the weakened portion.

2. The apparatus as recited in claim 1, and further comprising a one-way door biased from an open position to receive the needle hub toward a closed position to seal the aperture.

3. The apparatus as recited in claim 1 wherein the locking mechanism comprises a flexible arm connected to the upper portion at a first end and to the locking tip at a second end.

4. The apparatus as recited in claim 1 wherein said upper portion is removably connected to said container body.

5. The apparatus as recited in claim 1 wherein the container is formed of a plastic.

6. The apparatus as recited in claim 1 wherein the upper portion of said container comprises a concave surface and said aperture is positioned at a lowermost position of said concave surface.

7. The apparatus as recited in claim 1, further comprising a second aperture in the upper portion sized and configured to receive a second syringe, said second aperture having a second locking mechanism for retaining a portion of said second syringe to facilitate breaking the second syringe.

8. The apparatus as recited in claim 1, and further comprising a cover for covering at least a portion of said aperture.

9. The apparatus as recited in claim 8 wherein the cover comprises a syringe contact ledge and wherein the cover is movably coupled to one of the container body and the upper portion, said cover for covering the aperture and said syringe contact ledge for use in bending the syringe barrel relative to the nozzle.

10. The apparatus as recited in claim 9 wherein the upper portion comprises a support ledge for supporting and retaining the syringe barrel after being broken from the nozzle retained within the aperture.

11. A method for breaking a syringe having an attached needle hub and needle assembly such that the needle hub and needle assembly are broken away from the syringe, the needle assembly having a needle tip at a distal needle end attached to said needle hub at a proximal needle end, the method comprising the steps of:

providing a syringe having a syringe barrel and a nozzle coupled to a needle hub, said nozzle having a weakened portion adjacent said needle hub;

maintaining the needle hub in a substantially fixed position relative to the syringe barrel;

during the maintaining step, inserting at least the needle hub into a multi-needle container; and

moving the syringe barrel relative to the container to break the syringe at the weakened portion of the nozzle.

12. The method as recited in claim 11 wherein the step of moving comprises moving the syringe barrel laterally relative to the needle hub until the syringe and needle assembly breaks.

13. The method as recited in claim 11 wherein the moving step further comprises bending the syringe and needle assembly such that the syringe barrel is bent relative to the needle hub until the syringe barrel is broken away from the needle assembly along the weakened portion.

14. The method as recited in claim 11 wherein the step of maintaining comprises:

providing the container with an enclosing upper portion having an aperture for receiving and retaining the needle hub, the aperture having a rigid aperture wall defining an opening into the container;

inserting the needle assembly into the aperture; and

engaging the needle hub within the rigid aperture wall such that the needle hub is retained in the substantially fixed position relative to the container.

15. The method as recited in claim 14 wherein the step of moving comprises:

moving the syringe barrel at relative to the container such that the needle assembly, the needle hub and a distal portion of the nozzle are broken away from said syringe barrel the weakened portion; and

removing the syringe barrel from said container.

16. The method as recited in claim 14 wherein the step of moving comprises moving a cover pivotally attached to the container such that a portion of the cover contacts the syringe barrel forcing the syringe to break at the weakened portion.

17. The method as recited in claim 14 wherein the step of providing a container further comprises providing a container for removing and disposing the needle hub, the container having an upper portion with an aperture opening into the container and a locking mechanism for retaining the needle hub within the aperture and preventing the removal of the needle hub from within the aperture and wherein the inserting and engaging steps comprise inserting the needle assembly into the aperture until the locking mechanism engages the needle hub.

18. A disposal apparatus adapted for use with a syringe having a body and a needle assembly comprising:

a base for supporting the apparatus on a convenient surface;

at least one side wall forming with the base a container having a converging portion defining an aperture into the container, the aperture being sized and configured to receive at least the needle assembly into the container;

an engagement mechanism disposed relative to the aperture and having properties for facilitating movement of the needle assembly inwardly of the container while inhibiting movement of the needle assembly outwardly of the container; and

the engagement apparatus facilitating fracture of the syringe to permit separation of the needle assembly from at least a portion of the body to safely store the needle apparatus in the container.

19. The disposal apparatus recited in claim 18 wherein the needle assembly of the syringe includes a hub and a needle, and a disposal apparatus further comprises:

at least one arm bendable between the first position permitting movement of the needle and the hub into the container, and a second position prohibiting movement of the hub outwardly of the container.

20. The disposal apparatus recited in claim 19 wherein the arm is a first arm and the disposal apparatus further comprises a second arm disposed in opposing relationship to the first arm.

21. The disposal apparatus recited in claim 19 wherein the arm includes an inclined surface adapted to convert axial movement of the syringe into radial movement of the arm to the first position thereby facilitating movement of the needle assembly into the container.

22. The disposal apparatus recited in claim 18 further comprising a top wall configured to funnel the syringe toward the engagement mechanism.

23. The disposal apparatus recited in claim 22 further comprising a spring-biased door pivotally mounted to cover the aperture when the syringe is not present in the aperture.