Syringe pump, and related method and system

US10722645B2 · kind B2 · utility

Assignee

• DEKA Products Limited Parternship · US

Inventors

• Dean Kamen · Bedford, US
• Larry B. Gray · Merrimack, US
• Jesse T. Bodwell · Manchester, US
• John M. Kerwin · Manchester, US
• Michael J. Baier · Medway, US
• Dirk A. van der Merwe · Canterbury, US
• Stephen L. Fichera · Salem, US
• Jonathan R. Thurber · Deerfield, US
• Martin D. Desch · Newburyport, US

Key dates

• Filing date: Aug 10, 2017
• Grant date: Jul 28, 2020
• Expiry date: Jun 2, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2209/086
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for discharging fluid from a syringe and for mitigating occlusion conditions includes actuating the plunger of a syringe into a barrel. The method monitors fluid pressure within the barrel of the syringe and determines that an occlusion exists when the fluid pressure exceeds a predetermined threshold. The method actuates the plunger out of the barrel by a predetermined amount in response to the detected occlusion and actuates the plunger of the syringe into the barrel until a measured fluid pressure within the barrel of the syringe exceeds another predetermined threshold.