IP Library › Granted Patent US 12685827
Granted Patent B2
US 12685827 · App. 18/029,197 · Granted Jul 21, 2026

Autoinjector sub-assembly

Inventors: Thad Miley (Boca Raton, FL); Brian Maxfield (Delray Beach, FL); Randall Goldfarb (Boca Raton, FL)
Assignee: SHL Medical AG
A61M5/3204
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Quick Facts
Patent No.
US 12685827
App. No.
18/029,197
Granted
Jul 21, 2026
Kind
B2
Abstract

The present disclosure concerns an autoinjector sub-assembly having a cap with a tubular housing extending from a proximal closed end to a distal open end and an arm attached to the tubular housing, wherein the arm extends in the axial direction from the distal open end, a syringe holder having a tubular body with a tubular flange attached to the proximal end of the tubular body, the tubular flange having an inner surface facing towards the axis, wherein the arm of the cap is between the axis and the inner surface of the flange of the syringe holder, wherein the arm of the cap has a protrusion extending in the radial direction away from the axis, and wherein the arm of the cap has a protrusion extending in the radial direction towards the axis.

Claims (21)

1 . An autoinjector sub-assembly extending along a longitudinal axis in an axial direction from a proximal end to a distal end, the autoinjector-sub-assembly comprising

a cap comprising a tubular housing extending from a proximal closed end to a distal open end and an arm attached to the tubular housing, wherein the arm extends in the axial direction from the distal open end,

a syringe holder comprising a tubular body extending from a proximal end to a distal end and a tubular flange attached to the proximal end of the tubular body, the tubular flange comprising an inner surface facing towards the longitudinal axis, wherein the tubular body of the syringe holder comprises a cut-out, wherein the cut-out extends entirely through the body of the syringe holder, and wherein the cut-out is aligned in a radial direction relative to the longitudinal axis with the protrusion extending in the radial direction away from the longitudinal axis,

wherein the arm of the cap is between the longitudinal axis and the inner surface of the flange of the syringe holder,

wherein the arm of the cap comprises a protrusion extending in the radial direction away from the longitudinal axis, and

wherein the arm of the cap comprises a protrusion extending in the radial direction towards the longitudinal axis.

2 . The autoinjector sub-assembly of claim 1 , wherein the inner surface of the flange is further from the longitudinal axis at the distal end of the inner surface than at the proximal end of the inner surface.

3 . The autoinjector sub-assembly of claim 1 , wherein the flange of the syringe holder extends fully around the longitudinal axis in a circumferential direction relative to the longitudinal axis.

4 . The autoinjector sub-assembly of claim 1 , wherein the distance of the inner surface from the longitudinal axis continually reduces when travelling along the flange from the distal end of the inner surface to the proximal end of the inner surface.

5 . The autoinjector sub-assembly of claim 1 , wherein the syringe holder comprises a flexible arm extending in the axial direction from a proximal end to a distal end, wherein the distal end of the arm is attached to the body and the proximal end of the arm is movable in the radial direction relative to the body.

6 . The autoinjector sub-assembly of claim 1 , wherein the cap is a single integral part.

7 . The autoinjector sub-assembly of claim 1 , further comprising a syringe, the syringe comprising a medicament container, a medicament delivery member shield, and a medicament delivery member attached to the medicament container, wherein the medicament delivery member is inside the medicament delivery member shield.

8 . The autoinjector sub-assembly of claim 7 , wherein a proximally-facing surface of the protrusion extending in the radial direction towards the longitudinal axis abuts a distally facing surface of the medicament delivery member shield.

9 . The autoinjector sub-assembly of claim 7 , wherein a proximally-facing surface of the protrusion extending in the radial direction towards the longitudinal axis is spaced apart in the axial direction from a distally facing surface of the medicament delivery member shield.

10 . The autoinjector sub-assembly of claim 1 , comprising a housing, wherein the syringe holder is attached to the housing.

11 . The autoinjector sub-assembly of claim 1 , wherein the protrusion extending in the radial direction away from the longitudinal axis is configured to engage the inner surface of the flange when the cap is removed from an autoinjector comprising the autoinjector sub-assembly.

12 . The autoinjector sub-assembly of claim 1 , wherein the protrusion extending in the radial direction towards the longitudinal axis is configured to engage a distally-facing surface of a medicament delivery member shield of a syringe when the cap is removed from an autoinjector comprising the autoinjector sub-assembly.

13 . The autoinjector sub-assembly of claim 1 , wherein the tubular body of the syringe holder comprises a recess, and wherein the recess is aligned in a radial direction relative to the longitudinal axis with the protrusion extending in the radial direction away from the longitudinal axis.

14 . An autoinjector comprising

a housing; and

the autoinjector sub-assembly of claim 1 .