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System and method for a syringe micro pump with volute spring

  • US 10,406,282 B2
  • Filed: 10/12/2016
  • Issued: 09/10/2019
  • Est. Priority Date: 12/10/2015
  • Status: Active Grant
First Claim
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1. A system for a removable syringe micro pump with volute spring, comprising:

  • a pump housing having a first end and opposite thereto an attaching end, and at least one sidewall there between, the pump housing having a base proximate to the first end and, the attaching end having an attacher structured and arranged to temporarily engage a syringe having a barrel with an open end opposite from a nozzle, the attacher structured and arranged to attach the attaching end to the open end of the syringe;

    a volute spring nested within the pump housing and attached proximate to the base, the volute spring having a compressed first position wherein coils of the volute spring are concentrically disposed under tension such that an initial height of the volute spring is equivalent a width of a coil, the volute spring having an extended second position wherein the release of tension extends the volute spring normally away from the removable syringe micro pump, the volute spring having a diameter pre-selected to pass within a barrel of the engaged syringe, the volute spring further having a distal end structured and arranged to engage a plunger seal of the engaged syringe, wherein the release of tension between the first position and the second position permits the distal end of the volute spring to move the plunger seal towards a nozzle of the syringe.

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