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Aspiration and injection device

  • US 10,596,321 B2
  • Filed: 03/24/2017
  • Issued: 03/24/2020
  • Est. Priority Date: 04/08/2016
  • Status: Active Grant
First Claim
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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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