	US 11,850,209 B2
	Driving control of a reciprocating CPR apparatus
Anders Nilsson, Akarp (SE); and Peter Sebelius, Malmo (SE)
Assigned to PHYSIO-CONTROL, INC., Redmond, WA (US)
Filed by Physio-Control, Inc., Redmond, WA (US)
Filed on Oct. 30, 2020, as Appl. No. 17/085,026.
Application 13/549,164 is a division of application No. 12/523,082, abandoned, previously published as PCT/SE2008/000022, filed on Jan. 14, 2008.
Application 17/085,026 is a continuation of application No. 15/842,638, filed on Dec. 14, 2017, granted, now 10,821,051.
Application 15/842,638 is a continuation of application No. 13/549,164, filed on Jul. 13, 2012, granted, now 9,844,487, issued on Dec. 19, 2017.
Claims priority of application No. 0700094-6 (SE), filed on Jan. 18, 2007.
Prior Publication US 2021/0045969 A1, Feb. 18, 2021
Int. Cl. A61H 31/00 (2006.01); A61M 16/00 (2006.01)

CPC A61H 31/006 (2013.01) [A61H 2201/1246 (2013.01); A61H 2201/1664 (2013.01); A61H 2201/5007 (2013.01); A61H 2201/5064 (2013.01); A61H 2201/5066 (2013.01); A61H 2201/5092 (2013.01); A61M 16/00 (2013.01)]

18 Claims

1. A mechanical cardio-pulmonary resuscitation (CPR) apparatus, comprising:

a plunger;

a sensor configured to sense plunger displacement information for a first reciprocating cycle, the sensor including a light source and a number of photodetectors; and

a microprocessor configured to receive the sensed plunger displacement information and to generate plunger driving instructions for the plunger to administer a set of reciprocating cycles based at least in part on the sensed plunger displacement of the first reciprocating cycle.

16. A method for generating driving instructions for a plunger, comprising:

sensing, with a light source and a number of photodetectors, a displacement of a plunger for a first reciprocating cycle;

generating plunger driving instructions based on the displacement of the plunger for the first reciprocating cycle; and

driving the plunger based on the plunger driving instructions for a second reciprocating cycle.