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Multi-mode syringe

  • US 9,504,816 B2
  • Filed: 03/17/2009
  • Issued: 11/29/2016
  • Est. Priority Date: 03/17/2008
  • Status: Expired due to Fees
First Claim
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1. A multi-mode, syringe device, comprising:

  • a body sized for placement within a syringe assembly, the syringe assembly including a plunger assembly, the body defining three flow paths, the body configured to form flow in only a first direction through a first flow path of the three flow paths, the body configured to automatically form flow below a predetermined rate in a second direction opposite the first direction in response to a variable having a value below a threshold through a second flow path of the three flow paths, the body configured to automatically form flow in the second direction at a rate higher than the predetermined rate in response to the variable reaching a value at or above the threshold through a third flow path of the three flow paths, wherein the variable is a force in the second direction applied to the plunger assembly of the syringe assembly.

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