Needle shield puller

• US 10,398,850 B2
• Filed: 02/08/2017
• Issued: 09/03/2019
• Est. Priority Date: 02/08/2016
• Status: Active Grant

• Current Assignee: West Pharmaceutical Services Incorporated
• Original Assignee: West Pharmaceutical Services Incorporated
• Inventors: Allen, Timothy
• Primary Examiner(s): Hayman, Imani N
• Assistant Examiner(s): Legette, Tiffany
• Application Number:
  US16/075,325
• Publication Number:
  US 20190060580A1
• Time in Patent Office: 937 Days
• CPC Class Codes: A61M 2205/0216 Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
• CPC Class Codes: A61M 2209/04 Tools for specific apparatus
• CPC Class Codes: A61M 5/3204 Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices

Abstract

A needle shield puller has a deformable tubular body including a proximal end having a proximal opening and a distal end. An opening extends from the proximal opening toward the distal end. The opening is shaped to accommodate a portion of a needle shield. The body has initial and tension states and the opening diameter is greater in the initial state. A cinch is secured to the body at the proximal opening to secure the needle shield puller to the needle shield. The cinch biases the cinch diameter to a relaxed cinch diameter less than the needle shield diameter. A handle at a distal end of the body allows a user to place the body in the tension state. An installation aid comprises an arm releasably engageable with the cinch and the proximal opening to expand the cinch diameter toward a maximum cinch diameter greater than the needle shield diameter.

Claims

1. A needle shield puller for removing a needle shield having a needle shield diameter from a syringe having a needle and a longitudinal axis, the needle shield puller comprising:

a deformable, generally tubular body having a proximal end with a proximal opening, a distal end, and an opening extending from the proximal opening toward the distal end, the opening having an opening diameter and being shaped to accommodate at least a portion of the needle shield, the body having an initial state and a tension state, the body being configured such that the opening diameter is greater in the initial state than in the tension state;

a cinch secured to the body at the proximal opening to secure the needle shield puller to the needle shield in a mounted configuration, the cinch having a cinch diameter, the cinch biasing the cinch diameter to a relaxed cinch diameter, the relaxed cinch diameter being less than the needle shield diameter;

a handle at the distal end of the body, the handle being graspable to allow a user to exert a tensile force on the body and place the body in the tension state; and

an installation aid comprising an arm releasably engageable with the cinch and the proximal opening, wherein the proximal end of the body includes a pocket configured to receive at least a portion of the arm, the installation aid graspable by the user for pulling in a direction radially away from the longitudinal axis in a mounted configuration to expand the cinch diameter so that the cinch diameter is greater than the relaxed cinch diameter and the needle shield diameter.

2. A needle shield puller for removing a needle shield having a needle shield diameter from a syringe having a needle and a longitudinal axis, the needle shield puller comprising:

a deformable, generally tubular body having a proximal end with a proximal opening, a distal end, and an opening extending from the proximal opening toward the distal end, the opening having an opening diameter and being shaped to accommodate at least a portion of the needle shield, the body having an initial state and a tension state, the body being configured such that the opening diameter is greater in the initial state than in the tension state;

a cinch secured to the body at the proximal opening to secure the needle shield puller to the needle shield in a mounted configuration, the cinch having a cinch diameter, the cinch biasing the cinch diameter to a relaxed cinch diameter, the relaxed cinch diameter being less than the needle shield diameter;

a handle at the distal end of the body, the handle being graspable to allow a user to exert a tensile force on the body and place the body in the tension state; and

an installation aid comprising an arm releasably engageable with the cinch and the proximal opening, the arm has a generally L-shape, the installation aid graspable by the user for pulling in a direction radially away from the longitudinal axis in a mounted configuration to expand the cinch diameter so that the cinch diameter is greater than the relaxed cinch diameter and the needle shield diameter.

3. The needle shield puller of claim 2, wherein the cinch comprises an elastic band secured to the proximal opening.

4. The needle shield puller of claim 2, wherein woven flexible fibers of the body are woven around the cinch to seal the cinch into the body.

5. The needle shield puller of claim 2, wherein the arm is constructed of woven flexible fibers of the body.

6. The needle shield puller of claim 2, wherein the opening diameter is variable between the proximal end and the distal end.

7. The needle shield puller of claim 2, wherein the handle is constructed from a material selected from the group consisting of metal, plastic, polymeric, nylon, and fiberglass.

8. The needle shield puller of claim 2, wherein the installation aid is connected to the proximal end of the body by a frangible connection.

9. The needle shield puller of claim 2, wherein the body has an exterior surface and the distal end of the body extends beyond the needle shield in the mounted configuration, such that the exterior surface at the distal end of the body forms the handle.

10. The needle shield puller of claim 2, wherein the body is constructed of woven flexible fibers.

11. The needle shield puller of claim 10, wherein the woven flexible fibers are selected from the group consisting of nylon, fiberglass and cotton.

12. The needle shield puller of claim 2, wherein the handle includes a finger hole.

13. The needle shield puller of claim 12, wherein the handle is formed from woven flexible fibers of the body.

14. The needle shield puller of claim 12, wherein the body includes a taper formed by woven flexible fibers at the distal end of the body for coupling the handle to the body.

15. The needle shield puller of claim 2, wherein the arm is constructed of a rigid structural material.

16. The need shield puller of claim 15, wherein the rigid structural material is one of a metal and a plastic material.

17. A needle shield puller for removing a needle shield having a needle shield diameter from a syringe having a needle and a longitudinal axis, the needle shield puller comprising:

a deformable, generally tubular body having a proximal end with a proximal opening, a distal end, and an opening extending from the proximal opening toward the distal end, the opening having an opening diameter and being shaped to accommodate at least a portion of the needle shield, the body having an initial state and a tension state, the body being configured such that the opening diameter is greater in the initial state than in the tension state;

a cinch secured to the body at the proximal opening to secure the needle shield puller to the needle shield in a mounted configuration, the cinch having a cinch diameter, the cinch biasing the cinch diameter to a relaxed cinch diameter, the relaxed cinch diameter being less than the needle shield diameter;

a handle at the distal end of the body, the handle being graspable to allow a user to exert a tensile force on the body and place the body in the tension state; and

an installation aid comprising an arm releasably engageable with the cinch and the proximal opening, wherein the installation aid comprises a pair of L-shaped arms releasably engageable with the cinch and the proximal end of the body, the installation aid graspable by the user for pulling in a direction radially away from the longitudinal axis in a mounted configuration to expand the cinch diameter so that the cinch diameter is greater than the relaxed cinch diameter and the needle shield diameter.

18. The needle shield puller of claim 17, wherein the body is constructed of woven flexible fibers.

19. The needle shield puller of claim 18, wherein the woven flexible fibers are selected from the group consisting of nylon, fiberglass and cotton.

20. The needle shield puller of claim 18, wherein the woven flexible fibers are constructed in a weaving pattern, the weaving pattern selected from the group consisting of a basket weave, a plain weave and a twill.