IP Library Granted Patent US 12,500,008
Granted Patent B2
US 12,500,008 · App. 17/607,270 · Granted Dec 16, 2025

Pierceable plug for needle

Inventors: Joseph Haepers (Acton, MA); Jack N. Wentz, Jr. (Nashua, NH); Virginia Ann Hankard (Dunstable, MA); Khursida Shahidullah (Lexington, MA); Tricia D. Butland (Stoneham, MA); Patricia A. Corosa (Nashua, NH); David P. Rice (Derry, NH); Samantha Moran (Lowell, MA)
Assignee: Lantheus Medical Imaging, Inc.
G21G4/08
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Quick Facts
Patent No.
US 12,500,008
App. No.
17/607,270
Granted
Dec 16, 2025
Kind
B2
Abstract

A pierceable plug for closing off a piercing end of a needle is described herein. The plug has an end that is configured to be pierced by the needle to close off the piercing end of the needle. The plug may be radiation sterilizable and may be made of a material that includes an antimicrobial agent. The plug may be used to close off a needle end that is in fluid communication with a radioactive substance.

Claims (16)

1 . A plug configured to be pierced by a needle of a radionuclide generator, comprising:

a handle at a first end of the plug;

a curved surface at a second end of the plug, the curved surface being configured to be pierced by the needle of the radionuclide generator; and

a side surface positioned between the first end and the second end of the plug.

2 . The plug of claim 1 , wherein the side surface comprises a plurality of flat faces.

3 . The plug of claim 2 , wherein two adjacent faces of the plurality of flat faces are positioned at an oblique angle relative to one another.

4 . The plug of claim 2 , wherein the plurality of flat faces forms a hexagon.

5 . The plug of claim 1 , wherein the side surface is curved.

6 . The plug of claim 1 , wherein the plug necks inwardly transitioning from the side surface to the handle.

7 . The plug of claim 1 , wherein the handle includes a neck portion and an overhang portion that extends beyond the neck portion, the neck portion and the overhang portion forming a T-shape.

8 . The plug of claim 7 , wherein the overhang portion extends beyond the neck portion in a first direction and is flush along a plane with the neck portion in a second direction perpendicular to the first direction.

9 . The plug of claim 8 , wherein the side surface includes a flat face that is parallel with the plane.

10 . The plug of claim 1 , wherein the plug is made of a radiation sterilizable material.

11 . The plug of claim 1 , wherein the plug is made of silicone.

12 . The plug of claim 1 , wherein the plug is made of ethylene propylene diene monomer.

13 . The plug of claim 1 , wherein the plug is made of a material that contains an antimicrobial agent.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2026
From: LANTHEUS MEDICAL IMAGING, INC.
To: SPECT HOLDCO LLC
Reel/Frame 074071/0603 →
MERGER Recorded Mar 13, 2026
From: SPECT HOLDCO LLC
To: SHINE SPECT USA, LLC
Reel/Frame 074071/0704 →
RELEASE OF SECURITY INTEREST Recorded Jan 11, 2026
From: CITIZENS BANK, N.A., AS COLLATERAL AGENT
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 073429/0970 →
SECURITY INTEREST Recorded Dec 2, 2022
From: LANTHEUS MEDICAL IMAGING, INC.; MOLECULAR INSIGHT PHARMACEUTICALS, INC.; PSMA DEVELOPMENT COMPANY, LLC; PROGENICS PHARMACEUTICALS, INC.
To: CITIZENS BANK, N.A.
Reel/Frame 062047/0960 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 26, 2022
From: HAEPERS, JOSEPH; WENTZ, JACK N., JR.; HANKARD, VIRGINIA ANN; SHAHIDULLAH, KHURSIDA; BUTLAND, TRICIA D.; COROSA, PATRICIA A.; RICE, DAVID P.; MORAN, SAMANTHA
To: LANTHEUS MEDICAL IMAGING, INC.
Reel/Frame 058773/0604 →