US 2016/0101238 A1Published application

Rotatable finger flange for a syringe

AssigneeWest Pharmaceutical Services, Inc.

InventorsChristopher EVANS, Brian COSTELLO, Christopher GIEDA, Raymond PROTASIEWICZ

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Abstract

A conventional syringe defines a longitudinal axis and includes a syringe barrel having a syringe barrel flange laterally extending from an open proximal end of the syringe barrel and a plunger advanceable into the syringe barrel. A rotatable finger flange for such a syringe includes identical first and second flange components, each having an attachment member configured to releasably engage the syringe barrel flange and/or the other flange component, and a flange member laterally extending therefrom. The first and second flange component are engageable and rotatable relative to one another about the longitudinal axis between a non-use position, wherein the first flange member overlies the second flange member to reduce the finger flange footprint, and a use position, wherein the first flange member and the second flange member are angularly spaced apart from one another to provide a finger flange having a greater lateral extent than the syringe barrel flange.

Claims20

Dependent claims

A rotatable finger flange for use with a syringe defining a longitudinal axis and including a syringe barrel having a syringe barrel flange laterally extending proximate to an open proximal end of the syringe barrel and a syringe plunger for advancement into the syringe barrel through the open proximal end, the finger flange comprising:

a first flange component having a first attachment member configured to releasably engage the syringe barrel flange and having a first aperture extending therethrough for receiving the syringe therethrough, and a first flange member laterally extending from said first attachment member;
and
a second flange component having a second attachment member configured to releasably engage the first attachment member and having a second aperture extending therethrough for receiving the syringe therethrough, and a second flange member laterally extending from said second attachment member;
wherein the first flange component and the second flange component are engageable and rotatable relative to one another about the longitudinal axis between a non-use position, wherein the first flange member overlies the second flange member to reduce the finger flange footprint, and a use position, wherein the first flange member and the second flange member are angularly spaced apart from one another to provide a finger flange having a greater lateral extent than the syringe barrel flange.

1 more element

the finger flange comprising a first flange component having a first attachment member and a first flange member laterally extending from said first attachment member, said first attachment member including a first base defining:
a first aperture,
a first syringe retention ring extending upwardly from said first base and defining an open upper end having a plurality of angularly spaced radially inwardly extending tabs,
a first annular projection extending downwardly from the first aperture and having a first diameter dimensioned to slidably engage the syringe barrel, and
a pair of diametrically opposed arcuate projections extending downwardly from the first base, concentric with and spaced from the first annular projection, thereby defining a pair of diametrically opposed arcuate channels therebetween;
wherein said first syringe retention ring is dimensioned to releasably receive the syringe barrel flange therein and said radially inwardly extending tabs are configured to flex radially outwardly and snap over the syringe barrel flange upon receiving the syringe barrel flange into the first syringe retention ring, to, in turn, releasably secure the syringe barrel flange, and said first aperture is sized and shaped to receive the syringe therethrough.

3 more elements

Dependencies are inferred from the claim text.