Mechanical CPR with selective zero-position and compression depth adjustment

US12127999B2 · kind B2 · utility

Assignee

• JOLIFE AB · SE

Inventors

• Bjarne Madsen Härdig · Lund, SE
• Karl Fredrik Mauritz Arnwald · Lund, SE
• Anders Nilsson · Åkarp, SE
• Erik von Schenck · Lomma, SE
• Sara Lindroth · Lund, SE

Key dates

• Filing date: Jul 28, 2017
• Grant date: Oct 29, 2024
• Expiry date: Nov 13, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61H2230/305
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The disclosed CPR devices, systems, and methods adjust a compression depth of a compression mechanism to account for chest collapse of the patient receiving CPR. Compression depth can be adjusted up to a maximum depth in some examples. The compression depth can also be adjusted linearly or non-linearly as the zero point or starting position of the patient's chest changes due to chest collapse. Other factors can also be used to adjust the compression depth such as patient parameters that can be observed by a rescuer or sensed by sensors wirelessly connected to or integrated into the system. CPR devices that include active decompression can also use the disclosed techniques for adjusting the chest compression depth as the patient's chest collapses.