Aspiration and injection device
First Claim
Patent Images
1. A syringe comprising:
- a barrel having an inner lumen and a flange extending radially from a proximal end portion of the barrel for facilitating handling of the syringe during operation; and
a plunger having a plunger rod and a plunger head, the plunger rod having a distal end portion at least partially disposed within the inner lumen of the barrel and a proximal end portion coupled to the plunger head, the plunger head comprising proximal and distal-facing surfaces and a plurality of engagement structures extending distally from the distal-facing surface to facilitate gripping with a user'"'"'s thumb during operation of the syringe.
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Accused Products
Abstract
An aspiration and injection device is provided that can allow for ergonomic, safe, and precise aspiration of a target site and ejection of a medicament to the target site. The device can include a syringe barrel, a flange extender couplable to the barrel, and plunger that can be engaged by a hand and/or one or more finger of a user to perform aspiration and injection at a target site.
527 Citations
32 Claims
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1. A syringe comprising:
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a barrel having an inner lumen and a flange extending radially from a proximal end portion of the barrel for facilitating handling of the syringe during operation; and a plunger having a plunger rod and a plunger head, the plunger rod having a distal end portion at least partially disposed within the inner lumen of the barrel and a proximal end portion coupled to the plunger head, the plunger head comprising proximal and distal-facing surfaces and a plurality of engagement structures extending distally from the distal-facing surface to facilitate gripping with a user'"'"'s thumb during operation of the syringe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A syringe comprising:
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a barrel having a flange extending radially therefrom; a plunger disposed at least partially within the barrel; and a flange extender having a central body and opposing grip members extending radially from the central body, the central body having a proximal end, a distal end, and a longitudinal bore extending between the proximal and distal ends, the central body further comprising an engagement slot and a plunger bore, the engagement slot having a barrel slot portion and a flange slot portion that extend from a side surface of the central body into the longitudinal bore, and between the proximal and distal ends, to permit insertion thereinto of the barrel and the flange for facilitating removable coupling of the flange extender with the barrel, the barrel slot portion extending along the longitudinal axis at a barrel height that is greater than a width of the barrel slot portion, the flange slot portion having a flange height measured parallel relative to the longitudinal axis of the longitudinal bore, that tapers from the side surface of the central body toward the longitudinal bore for increasingly restricting movement of the barrel relative to the flange extender as the barrel is inserted into the longitudinal bore. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A syringe comprising:
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a barrel having an inner lumen and a flange extending radially from a proximal end portion of the barrel for facilitating handling of the syringe during operation; and a plunger having a plunger rod and a plunger head, the plunger rod having a distal end portion at least partially disposed within the inner lumen of the barrel and a proximal end portion coupled to the plunger head, the plunger head comprising proximal and distal-facing surfaces and a plurality of engagement structures in the form of elongate ridges that extend in a radiating orientation from a central longitudinal axis of the plunger, each elongate ridge extending distally from the distal-facing surface to facilitate gripping with a user'"'"'s thumb during operation of the syringe. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification