Syringe pump, and related method and system

US11826543B2 · 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: Sep 23, 2021
• Grant date: Nov 28, 2023
• Expiry date: Jan 29, 2042

Classification

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

Abstract

A syringe pump includes a lead screw, a cam, and an assembly having first and second arms each having a first end and a second end. The second ends of the first and second arms are configured to engage with the lead screw. The first ends of the first and second arms are configured to engage with the cam such that actuation of the cam toward the assembly causes the second ends of the first and second arms to pivotally approach each other. The second ends of the first and second arms each includes threads to engage the lead screw when the second ends of the first and second arms approach each other. The plunger head coupled to the assembly and operative to drive a plunger of a syringe into a barrel of the syringe.