Medical pump

US11707615B2 · kind B2 · utility

Assignee

• DEKA Products Limited Parternship · US

Inventors

• Michael J. Baier · Medway, US
• David Blumberg, JR. · Deerfield, US
• Hugh J. Boddington · Concord, US
• Thomas A. Friedrich · Loudon, US
• Paul G. Girouard · Allenstown, US
• Larry B. Gray · Merrimack, US
• David C. Nivens · Hollis, US

Key dates

• Filing date: Aug 16, 2019
• Grant date: Jul 25, 2023
• Expiry date: Dec 10, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/6045
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A pump for treating a patient is disclosed that includes a spring-biased plunger biased toward actuation against a tube; a cam shaft configured to actuate the spring-based plunger; a lever actuatable between a closed position and an open position; a shaft coupled to the lever, the shaft having a central axis centrally along the length of the shaft, the shaft coupled to the lever to rotate around the central axis in accordance with actuation of the lever; and a lift cam pivotally coupled to the shaft, wherein the lift cam pivots around a lift cam axis, the lift cam axis of the lift cam is parallel to the central axis of the shaft, and the lift cam engages with the spring-based plunger to lift the spring-biased plunger off of the cam shaft as the shaft rotates in accordance with actuating the lever to the open position.