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US 12,605,510 B2Granted
Plunger rod and syringe including same
AssigneeBecton Dickinson France
InventorsLoïc Pitulat, Yves-Eric Dufour
Life of this patent
Estimating the term…
Abstract
A plunger rod is for use with a syringe having a syringe barrel. The plunger rod includes an elongated body having a proximal end, a distal end opposite the proximal end, a central axis extending between the proximal end and the distal end, a first curved end face, a second curved end face, and a joining portion joining the first curved end face to the second curved end face. Each of the first curved end face, the second curved end face, and the joining portion extends between the proximal end and the distal end. The first curved end face and the second curved end face together are comprised in a circle defined by an outer perimeter of the elongated body.
Claims25
A plunger rod for use with a syringe having a syringe barrel, the plunger rod comprising:
- an elongated body having a proximal end, a distal end opposite the proximal end, and a central axis extending between the proximal end and the distal end,
- a first curved end face,
- a second curved end face, and
- a joining portion joining the first curved end face to the second curved end face, each of the first curved end face, the second curved end face, and the joining portion extending between the proximal end and the distal end,
- wherein the first curved end face and the second curved end face together are comprised in a circle defined at least partially by a discontinuous arcuate outer perimeter of the elongated body, wherein the joining portion comprises an intermediate face, a first connecting face extending from the intermediate face to the first curved end face, and a second connecting face extending from the intermediate face to the second curved end face, wherein the intermediate face, the first curved end face, and the second curved end face are comprised in the circle delimited by the outer perimeter of the elongated body together therewith, and wherein the first curved end face and the second curved end face do not form a continuous portion of the outer perimeter of the elongated body.
2 more elements
A plunger rod for use with a syringe having a syringe barrel, the plunger rod comprising:
- an elongated body having a proximal end, a distal end opposite the proximal end, and a central axis extending between the proximal end and the distal end,
- a first curved end face,
- a second curved end face, and
- a joining portion joining the first curved end face to the second curved end face, each of the first curved end face, the second curved end face, and the joining portion continuously extending from the proximal end to the distal end of the elongated body, wherein the first curved end face and the second curved end face together are comprised in a circle defined at least partially by a discontinuous arcuate outer perimeter of the elongated body defined by a diameter of the distal end of the elongated body, and wherein the joining portion intersects the central axis and extends directly from the first curved end face to the second curved end face.
1 more element
A syringe assembly comprising:
- a syringe barrel having a sidewall, a distal end, and a proximal end;
- and
- a plunger rod comprising:
- an elongated body having a proximal end, a distal end opposite the proximal end of the elongated body, and a central axis extending between the proximal end of the elongated body and the distal end of the elongated body,
- a first curved end face,
- a second curved end face, and
- a joining portion joining the first curved end face to the second curved end face, each of the first curved end face, the second curved end face, and the joining portion extending between the proximal end of the elongated body and the distal end of the elongated body,
- wherein the first curved end face and the second curved end face together are comprised in a circle defined by a discontinuous arcuate outer perimeter of the elongated body, wherein the joining portion comprises an intermediate face, a first connecting face extending from the intermediate face to the first curved end face, and a second connecting face extending from the intermediate face to the second curved end face, and wherein the intermediate face, the first curved end face, and the second curved end face are comprised in the circle delimited by the outer perimeter of the elongated body together therewith, and wherein the first curved end face and the second curved end face do not form a continuous portion of the outer perimeter of the elongated body.
5 more elements
A syringe assembly comprising:
- a syringe barrel having a sidewall, a distal end, and a proximal end;
- and
- a plunger rod comprising:
- an elongated body having a proximal end, a distal end opposite the proximal end of the elongated body, and a central axis extending between the proximal end of the elongated body and the distal end of the elongated body,
- a first curved end face,
- a second curved end face, and
- a joining portion joining the first curved end face to the second curved end face,
- each of the first curved end face, the second curved end face, and the joining portion continuously extending from the proximal end of the elongated body to the distal end of the elongated body,
- wherein the central axis of the elongated body coincides with a corresponding central axis of the syringe barrel,
- wherein the joining portion intersects the central axis of the elongated body and extends directly from the first curved end face to the second curved end face,
- wherein the first curved end face and the second curved end face together at least partially constitute a circle defined by an arcuate outer perimeter of the elongated body.
8 more elements
Dependencies are inferred from the claim text.