Dual sensor implementations for providing resuscitative chest compression feedback

1 . A system for assisting a user in providing chest compressions to a patient, the system comprising:

a first electrode configured to measure ECG signals and provide defibrillation shock therapy to the patient;

a first motion sensor configured to be adhered to the first electrode at a position that is offset from a center of the first electrode and configured for measuring motion of an anterior portion of a thorax of the patient;

a first housing physically coupled with the first motion sensor and configured to receive at least a portion of at least one hand of the user during chest compressions, the first housing comprising:

a first frame comprising a base and a first receptacle extending from the base for holding the first motion sensor in place, the first receptacle comprising a substantially semicircular portion, a first leg extending at a first angle from a first end of the substantially semicircular portion toward an edge of the base, and a second leg extending at a second angle from a second end of the substantially semicircular portion toward the edge of the base such that the substantially semicircular portion, the first leg, and the second leg surround the first motion sensor and hold the first motion sensor in place, and

a textured padding for receiving at least the portion of the at least one hand of the user during the chest compressions, the textured padding comprising:

an overmold encasing the base and the first receptacle of the first frame and the first motion sensor; and

an exterior having a plurality of raised surface features, the first frame made from a first material having greater rigidity than a second material used to make the textured padding and configured to position the first motion sensor at a center region of the textured padding;

a second electrode configured to measure ECG signals and provide the defibrillation shock therapy to the patient in combination with the first electrode;

a second motion sensor configured to be adhered to the second electrode and configured for measuring motion of a posterior portion of the thorax of the patient; and

a second housing physically coupled with the second motion sensor and comprising a second frame for holding the second motion sensor in place.

2 . The system of claim 1 , wherein the textured padding is configured to at least one of provide tactile feedback for the user as to where the hands of the user are positioned or oriented relative to the first housing and provide a slip resistant surface that enhances comfort for the user when providing chest compressions to the patient.

3 . The system of claim 1 , wherein the plurality of raised surface features comprise at least four protrusions extending outwardly from the exterior of the textured padding.

4 . The system of claim 3 , wherein the at least four protrusions are arranged according to a concentric pattern.

5 . The system of claim 3 , wherein the at least four protrusions cover an average area per protrusion of between about 0.0001 square inches and about 0.01 square inches.

6 . The system of claim 1 , wherein the first housing comprises a thermoplastic polymeric material comprising at least one of: polycarbonate, polypropylene, polystyrene, polyethylene, ABS, nylon, silicone, elastomer, neoprene, santoprene, or polyurethane.

7 . The system of claim 6 , wherein the thermoplastic polymeric material has a Shore OO durometer of between about 60 and about 100, a Shore A durometer of between about 20 and about 100, or a Shore D durometer of between about 1 and about 60.

8 . The system of claim 1 , wherein the textured padding comprises an upper surface and a lower surface with a thickness between the upper surface and the lower surface of between about 0.1 inches and about 2.5 inches.

9 . The system of claim 1 , wherein the textured padding comprises a substantially circular shape and the first frame comprises a substantially circular shape having a radius smaller than a radius of the textured padding.

10 . The system of claim 9 , wherein the radius of the textured padding is between about 0.5 inches and about 2.0 inches.

11 . The system of claim 1 , wherein the second frame comprises a second receptacle for receiving the second motion sensor, and

wherein a first adhesive material is located within the first receptacle for adhering the first motion sensor and the first frame, and a second adhesive material is located within the second receptacle for adhering the second motion sensor and the second frame.

12 . The system of claim 11 , further comprising a connector and a cable for providing electrical communication between the first and second motion sensors and a computing device,

wherein the first receptacle is configured to receive a first portion of the cable, and the second receptacle is configured to receive a second portion of the cable.

13 . The system of claim 1 , wherein the first motion sensor comprises a first accelerometer and the second motion sensor comprises a second accelerometer.

14 . The system of claim 1 , further comprising:

an output device configured to provide chest compression feedback for the user; and

at least one processor and memory communicatively coupled with the first motion sensor and the second motion sensor, the at least one processor and memory configured to:

receive and process signals from the first motion sensor and the second motion sensor to estimate compression depth during administration of chest compressions by the user;

compare the estimated compression depth to a desired compression depth range; and

cause the output device to provide an indication of the estimated compression depth and provide the chest compression feedback for the user.

15 . The system of claim 1 , wherein the textured padding comprises an oval shape and the first frame comprises a substantially circular shape.

16 . A system for assisting a user in providing chest compressions to a patient, the system comprising:

a first electrode configured to measure ECG signals and provide defibrillation shock therapy to the patient;

a first motion sensor configured to be adhered to the first electrode at a position that is offset from a center of the first electrode and configured for measuring motion of an anterior portion of a thorax of the patient;

a first housing physically coupled with the first motion sensor and configured to receive at least a portion of at least one hand of the user during chest compressions, the first housing comprising:

a first frame comprising a base and a first receptacle extending from the base for holding the first motion sensor in place, the first receptacle comprising a substantially semicircular portion, a first leg extending at a first angle from a first end of the substantially semicircular portion toward an edge of the base, and a second leg extending at a second angle from a second end of the substantially semicircular portion toward the edge of the base such that the substantially semicircular portion, the first leg, and the second leg surround the first motion sensor and hold the first motion sensor in place, and

a padding for receiving at least the portion of the at least one hand of the user during the chest compressions, the padding comprising:

an overmold encasing the base and the first receptacle of the first frame and the first motion sensor;

an upper surface; and

a lower surface with a thickness between the upper surface and the lower surface of between about 0.1 inches and about 2.5 inches, the first frame made from a first material having greater rigidity than a second material used to make the padding and configured to position the first motion sensor at a center region of the padding;

a second electrode configured to measure ECG signals and provide the defibrillation shock therapy to the patient in combination with the first electrode;

a second motion sensor configured to be adhered to the second electrode and configured for measuring motion of a posterior portion of the thorax of the patient; and

a second housing physically coupled with the second motion sensor and comprising a second frame for holding the second motion sensor in place.

17 . The system of claim 16 , wherein the padding comprises a textured exterior having a plurality of protrusions extending from the textured exterior of the padding.

18 . The system of claim 17 , wherein the plurality of protrusions are arranged according to a concentric pattern.

19 . The system of claim 16 , wherein the padding comprises a substantially circular shape and the first frame comprises a substantially circular shape having a radius smaller than a radius of the padding.

20 . The system of claim 19 , wherein the radius of the padding is between about 0.5 inches and about 2.5 inches.

21 . The system of claim 16 , further comprising a connector and a cable for providing electrical communication between the first and second motion sensors and a computing device,

wherein the second frame comprises a second receptacle for receiving the second motion sensor, and

wherein the first receptacle is configured to receive a first portion of a cable, and the second receptacle is configured to receive a second portion of the cable.

22 . The system of claim 21 , further comprising a first adhesive material located within the first receptacle for adhering the first motion sensor and the first frame, and a second adhesive material located within the second receptacle for adhering the second motion sensor and the second frame.

23 . The system of claim 16 , wherein the first motion sensor comprises a first accelerometer and the second motion sensor comprises a second accelerometer.

24 . The system of claim 16 , further comprising:

an output device configured to provide chest compression feedback for the user; and

at least one processor and memory communicatively coupled with the first motion sensor and the second motion sensor, the at least one processor and memory configured to:

receive and process signals from the first motion sensor and the second motion sensor to estimate compression depth during administration of chest compressions by the user;

compare the estimated compression depth to a desired compression depth range; and

cause the output device to provide an indication of the estimated compression depth and provide the chest compression feedback for the user.

25 . The system of claim 16 , wherein the padding comprises an oval shape and the first frame comprises a substantially circular shape.

26 . The system of claim 1 , wherein the base of the first frame provides a rigid central portion configured to enable accurate measures of compression depth and is surrounded by flexible outer areas of the textured padding which are configured to conform to differing surface topographies of the anterior portion of the thorax of the patient.

27 . The system of claim 16 , wherein the base of the first frame provides a rigid central portion configured to enable accurate measures of compression depth and is surrounded by flexible outer areas of the padding which are configured to conform to differing surface topographies of the anterior portion of the thorax of the patient.