Disposable, disabling safety needle for a syringe, pen-type injector, or the like, and method of making the same

• US 5,964,731 A
• Filed: 10/02/1997
• Issued: 10/12/1999
• Est. Priority Date: 10/02/1997
• Status: Expired due to Term

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Paul H. Kovelman
• Inventors: Kovelman, Paul H.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US08/942,801
• Time in Patent Office: 740 Days
• Field of Search: 604/110, 604/192, 604/187, 604/198, 604/263
• US Class Current: 604/110
• CPC Class Codes: A61M 5/321 Means for protection against accidental injuries by used needles
• CPC Class Codes: A61M 5/3271 with guiding tracks for controlled sliding of needle protective sleeve from needle exposing to needle covering position
• CPC Class Codes: A61M 5/3272 having projections following labyrinth paths

Abstract

A piercing member assembly, such as a needle assembly, a lancet assembly, or the like, includes a piercing member, a piecing member base, a slidable piercing member cover and a rotatable piercing member collar. The piercing member base holds and secures the piecing member in place so that it can be used. The slidable piercing member cover is non-rotatively coupled to the piercing member base to slide over and cover the piercing member resulting in the disabling piercing assembly being disabled. The rotatable piercing member collar is rotatably coupled to the piercing member base and the slidable piercing member cover so that when the rotatable piercing member collar is rotated relative to the piercing member base and the slidable piercing member cover, the slidable piercing member cover slides over and covers the piercing member to disable the disabling piercing assembly.

Claims

1. A disabling piercing assembly comprising:

a piercing member;

a piercing member base that holds and secures the piercing member in place;

a slidable piercing member cover non-rotatively coupled to the piercing member base to slide over and cover the piercing member to disable the disabling piercing assembly; and

a rotatable piercing member collar rotatably coupled to the piercing member base and the slidable piercing member cover, wherein when the rotatable piercing member collar is rotated relative to the piercing member base and the slidable piercing member cover, the slidable piercing member cover slides over and covers the piercing member to disable the disabling piercing assembly.

2. A disabling piercing assembly according to claim 1, wherein the piercing member is a needle.

3. A disabling piecing assembly according to claim 1, wherein the piercing member base includes stationary supports, and wherein the slidable piercing member cover includes support tabs that engage with the stationary supports to substantially inhibit rotational movement of the slidable piercing member cover relative to the piercing member base.

4. A disabling piercing assembly according to claim 1, wherein the rotatable piercing member collar includes slanted channels and lock seats, and wherein the slidable piercing member cover includes twist tabs that engage with the slanted channels to slide the slidable piecing member cover over the piercing member as the rotatable piercing member collar is rotated, and wherein the twist tabs engage with the lock seats when the piercing member is covered to prevent the slidable piercing member cover from sliding down to uncover the piercing member after the disabling piercing assembly is disabled.

5. A disabling piercing assembly according to claim 1, further including a protective piercing member cap to protect the piercing member prior to use.

6. A piercing member assembly according to claim 1, wherein the piercing member base includes a threaded base for attachment to a device selected from the group consisting of syringes and pen-type injectors.

7. A disabling needle assembly comprising:

a needle;

a needle base that holds and secures the needle in place, wherein the needle base includes stationary supports;

a slidable needle cover non-rotatively coupled to the needle base to slide over and cover the needle to disable the disabling needle assembly, wherein the slidable needle cover includes support tabs that engage with the stationary supports of the needle base to substantially inhibit rotational movement of the slidable needle cover relative to the needle base, and wherein the slidable piercing member cover also includes twist tabs; and

a rotatable needle collar rotatably coupled to the needle base and the slidable needle cover, wherein when the rotatable needle collar is rotated relative to the needle base and the slidable needle cover, the slidable needle cover slides over and covers the needle to disable the disabling needle assembly, wherein the rotatable piercing member collar includes slanted channels and lock seats, wherein the twist tabs of the slidable needle cover engage with the slanted channels to slide the slidable needle cover over the needle as the rotatable needle collar is rotated, and wherein the twist tabs engage with the lock seats when the needle is covered to prevent the slidable needle cover from sliding down to uncover the needle after the disabling needle assembly is disabled.

8. A disabling needle assembly according to claim 7, further including a protective piercing member cap to protect the needle prior to use.

9. A needle assembly according to claim 7, wherein the needle base includes a threaded base for attachment to a device selected from the group consisting of syringes and pen-type injectors.