# US 12,005,014 B2 · Assembly, configured to detect a body on a support

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- Number: US 12,005,014 B2
- Document ID: US12005014B2
- Status: Granted
- Kind: B2
- Application number: 16/972,819
- Filed: 2019-06-06
- Published: 2021-08-12
- Granted: 2024-06-11
- Earliest claimed: 2018-06-11
- Assignees: Momo Medical Holding B.V.
- Applicants: Momo Medical Holding B.V.
- Inventors: Ide Simon Swager; Menno Laurens Gravemaker
- Web page: https://patentgrep.com/patent/US12005014B2

## CPC

- A61B 5/1112: {Global tracking of patients, e.g. by using GPS}
- A61G 7/057: Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor {(ventilation openings in mattresses A47C21/042; pneumatic or hydraulic mattresses A47C27/08)}
- A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
- A61B 5/447: {specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed}
- A61B 5/6892: {Mats}
- G04F 1/005: {using electronic timing, e.g. counting means (pulse time delay arrangements H03K5/13; modifications of electronic switches for introducing a time delay before switching H03K17/28)}
- G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units}
- G08B 7/06: using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources}
- A61B 5/1115: {Monitoring leaving of a patient support, e.g. a bed or a wheelchair}
- A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
- A61B 2562/0247: Pressure sensors
- A61B 2562/0252: Load cells
- A61B 2562/046: in a matrix array
- A61G 2205/20: Color codes
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)
- G04F: TIME-INTERVAL MEASURING (measuring pulse characteristics G01R, e.g. G01R29/02; in radar or like systems G01S)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

## Abstract

The present invention relates to an assembly, configured to detect a body on a support, comprising: —the support having a body receiving surface configured to receive the body; —an array of sensors that is arranged at a distance relative to the body receiving surface of the support and comprising: —a plurality of presence detectors; —at least one liveliness detector; and —a controller configured to detect the presence of a living person based on measurement signals of both the presence detectors and the at least one liveliness detector.

## Claims

### Claim 1

An assembly, configured to detect a body of a living person on a support having a body receiving surface configured to receive the body, and comprising:
an array of sensors that is configured to be arranged at a distance relative to the body receiving surface of the support and comprising a plurality of presence detectors;
a concentrator that is configured to concentrate a load on a presence sensor of one of the plurality of presence detectors in an occupied state of the support and comprising a contact portion that is configured to abut the presence sensor of the one of the plurality of presence detectors when the body is present on the support, and unload the presence sensor of the one of the plurality of presence detectors in an unoccupied state of the support,
wherein the concentrator comprises a pivot that is configured to pivotably arrange said concentrator in a measurement device, wherein:
the pivot is arranged at a first side of the concentrator; and
the contact portion is arranged at a lever distance (L) from the pivot; and
a controller configured to determine if the body is lying on a back or on a side of the body based on measurement signals of the plurality of presence detectors.

### Claim 2 (depends on 1)

The assembly according to claim 1, wherein:
the array of sensors further comprises at least one liveliness detector.

### Claim 3 (depends on 2)

The assembly according to claim 2, wherein the at least one liveliness detector comprises at least one of a heart rate sensor and a breathing sensor.

### Claim 4 (depends on 3)

The assembly according to claim 3, wherein:
the at least one liveliness detector comprises both a heart rate sensor and a breathing sensor, and wherein the at least one liveliness detector is configured to sense both a heart rate pattern and a breathing pattern; and
the controller is further configured to determine from the heart rate pattern and the breathing pattern on which of a left side and a right side of the body the living person is lying.

### Claim 5 (depends on 4)

The assembly according to claim 4, wherein the controller is configured to determine a ratio between an amplitude of the heart rate pattern and an amplitude of the breathing pattern to determine on which of a left side and a right side of the body the living person is lying.

### Claim 6 (depends on 2)

The assembly according to claim 2, wherein the at least one liveliness detector comprises a piezo-electric sensor.

### Claim 7 (depends on 2)

The assembly according to claim 2, wherein the at least one liveliness detector comprises a force sensing sensor.

### Claim 8 (depends on 2)

The assembly according to claim 2, wherein the controller is configured to determine if the body is lying on a left side or on a right side of the body based on measurement signals of the at least one liveliness detector.

### Claim 9 (depends on 2)

The assembly according to claim 2, wherein:
the concentrator extends over the presence sensor of the one of the plurality of presence detectors and the at least one liveliness detector; and
the presence sensor of the one of the plurality of presence detectors is positioned at a greater distance from the pivot than the at least one liveliness detector.

### Claim 10 (depends on 9)

The assembly according to claim 9, wherein said concentrator comprises a resilient area at the at least one liveliness detector.

### Claim 11 (depends on 10)

The assembly according to claim 10, comprising a reinforcement outside the resilient area.

### Claim 12 (depends on 1)

The assembly according to claim 1, wherein the plurality of presence detectors comprise at least one of a pressure sensor and a weight sensor.

### Claim 13 (depends on 1)

The assembly according to claim 1, wherein the plurality of presence detectors comprise a piezo-resistive sensor.

### Claim 14 (depends on 1)

The assembly according to claim 1, wherein the concentrator extends over the presence sensor of the one of the plurality of presence detectors.

### Claim 15 (depends on 1)

The assembly according to claim 1, wherein at least a part of the concentrator is moveable relative to the presence sensor of the one of the plurality of presence detectors.

### Claim 16 (depends on 1)

The assembly according to claim 1, wherein the concentrator is configured to have the contact portion arranged at an offset relative to the presence sensor of the one of the plurality of presence detectors below a predetermined unoccupied load.

### Claim 17 (depends on 16)

The assembly according to claim 16, wherein the predetermined unoccupied load is more than a load of the support in the unoccupied state.

### Claim 18 (depends on 1)

The assembly according to claim 1, wherein the concentrator is configured to have the contact portion arranged in abutment with the presence sensor of the one of the plurality of presence detectors above a predetermined occupied load.

### Claim 19 (depends on 18)

The assembly according to claim 18, wherein the predetermined occupied load is less than or equal to a load of the support occupied by the body.

### Claim 20 (depends on 1)

The assembly according to claim 1, wherein the lever distance (L) is at least more than half of a size of the concentrator extending transverse to a pivot axis (P) of said pivot.

### Claim 21 (depends on 1)

The assembly according to claim 1, wherein the plurality of presence detectors comprises a plurality of dedicated concentrators.

### Claim 22 (depends on 1)

The assembly according to claim 1, wherein the array of sensors is, relative to the body receiving surface of the support, arranged at an opposite side of the support.

### Claim 23 (depends on 1)

The assembly according to claim 1, further comprising an inclination sensor configured to measure an inclination of the support.

### Claim 24 (depends on 23)

The assembly according to claim 23, wherein the inclination sensor comprises an accelerometer.

### Claim 25 (depends on 1)

The assembly according to claim 1, wherein the lever distance (L) is more than two-thirds of a size of the concentrator extending transverse to a pivot axis (P) of said pivot.

### Claim 26

An assembly, configured to detect a body on a support having a body receiving surface configured to receive the body, and comprising:
an array of sensors that is configured to be arranged at a distance relative to the body receiving surface of the support and comprising a plurality of presence detectors; and
a concentrator that is configured to concentrate a load on a presence sensor of one of the plurality of presence detectors in an occupied state of the support and comprising a contact portion that is configured to abut the presence sensor of the one of the plurality of presence detectors when the body is present on the support, and unload the presence sensor of the one of the plurality of presence detectors in an unoccupied state of the support, wherein the concentrator is configured to have the contact portion arranged at an offset relative to the presence sensor of the one of the plurality of presence detectors below a predetermined unoccupied load
wherein the concentrator comprises a pivot that is configured to pivotably arrange said concentrator in a measurement device, wherein:
the pivot is arranged at a first side of the concentrator; and
the contact portion is arranged at a lever distance (L) from the pivot.
