The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2026
Filed:
Dec. 28, 2021
Physio-control, Inc., Redmond, WA (US);
Anders Jeppsson, Lund, SE;
Wiktor Kocula, Löderup, SE;
Jonas Lagerstrom, Fagersanna, SE;
Per Axelsson, Åkarp, SE;
Marcus Ehrstedt, Kävlinge, SE;
Anders Nilsson, Lund, SE;
Tobias Svahn, Malmö, SE;
Lars Anders Jörgen Segerstein, Staffanstorp, SE;
PHYSIO-CONTROL, INC., Redmond, WA (US);
Abstract
Techniques and devices for extending a piston and/or compression unit, for example connected to a medical device such as a mechanical CPR device, to accommodate different sized patients, are described herein. In some cases, a piston of a mechanical CPR device may include an inner piston at least partially slidable into an external piston sleeve. In one aspect, some aspects, the piston includes sleeves which can move relative to each other to extend the piston. In additional aspects, the compression mechanism may also extend downward toward the patient. In all aspects, the change in length of the piston may be detected and used to modify movement of the piston, for example to more safely perform mechanical CPR.