Apparatus and System for Monitoring

• US 20100063365A1
• Filed: 04/13/2006
• Published: 03/11/2010
• Est. Priority Date: 04/14/2005
• Status: Abandoned Application

• Current Assignee: Hidalgo Limited
• Original Assignee: Hidalgo Limited
• Inventors: Howard, Peter, Ward, Stephen, Pisani, Justin, Cade, Daniel
• Application Number:
  US11/918,347
• Publication Number:
  US 20100063365A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 2560/0252 using ambient temperature
• CPC Class Codes: A61B 2560/0257 using atmospheric pressure
• CPC Class Codes: A61B 2560/0475 Special features of memory means, e.g. removable memory cards
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 2562/0261 Strain gauges
• CPC Class Codes: A61B 2562/029 Humidity sensors
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/0531 Measuring skin impedance
• CPC Class Codes: A61B 5/08 Detecting, measuring or recording devices for evaluating the respiratory organs A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0816 : Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/0826 : Detecting or evaluating apnoea events A61B5/4818 takes precedence
• CPC Class Codes: A61B 5/11 : Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1118 : Determining activity level
• CPC Class Codes: A61B 5/1123 : Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/1135 : by monitoring thoracic expansion
• CPC Class Codes: A61B 5/117 : Identification of persons methods or arrangements for recognising patterns, e.g. fingerprints, G06F18/00, G06V40/00; identification of persons by analysing their voice or speech G10L17/00
• CPC Class Codes: A61B 5/14542 : for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14552 : Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/165 : Evaluating the state of mind, e.g. depression, anxiety
• CPC Class Codes: A61B 5/28 : for electrocardiography [ECG]
• CPC Class Codes: A61B 5/282 : Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/486 : Bio-feedback A61B5/375 takes precedence
• CPC Class Codes: A61B 5/6804 : Garments; Clothes
• CPC Class Codes: A61B 5/6805 : Vests
• CPC Class Codes: A61B 5/6823 : Trunk, e.g., chest, back, abdomen, hip
• CPC Class Codes: A61B 5/721 : using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/7246 : using correlation, e.g. template matching or determination of similarity
• CPC Class Codes: A61B 5/7267 : involving training the classification device
• CPC Class Codes: A61B 5/7282 : Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61B 5/7285 : for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal A61B6/5205, A61B6/541, A61B8/5207, A61B8/543 take precedence
• CPC Class Codes: G16H 40/67 : for remote operation

Abstract

A monitoring device wearable by a person to be monitored, comprising: one or more sensing means for sensing cardio, respiratory, physiological and/or other information from the person; processing means for analysing the sensed information; memory means for storing the sensed and/or analysed information; and communication means for transmitting at least the analysed information. At least one waveform acquired from the sensed cardio, respiratory, physiological and/or other information is digitised in real time; analysis of the sensed and/or digitised information is performed in real-time and a welfare indication of the person computed in real-time; and the computed welfare indication of the person is transmitted by the communication means and/or stored in the memory means.

Claims

1-134. -134. (canceled)

135. A monitoring device wearable by a person to be monitored, comprising:

one or more sensing means for sensing cardio, respiratory, physiological and/or other information from the person;

processing means for analysing the sensed information and capable of processing the (primary) cardio, respiratory, physiological and/or other information to derive secondary cardio, respiratory, physiological and/or other information;

memory means for storing the sensed and/or analysed information; and

communication means for transmitting at least a portion of the analysed information, wherein;

at least one waveform acquired from the sensed cardio, respiratory, physiological and/or other information is digitised in real-time;

analysis of the sensed and/or digitised information is performed in real-time and a welfare indication of the person computed in real-time; and

the computed welfare indication of the person is transmitted by the communication means and/or stored in the memory means,

the welfare indication is determinable by analysis and/or comparison of at least two forms of information selected from the primary and/or secondary cardio, respiratory, physiological and/or other information, with thresholds from configurable data stored in the memory, wherein the thresholds and configurable data are modifiable for a type or range of activities or environments.

136. A monitoring device as claimed in claim 135, wherein the one or more sensing means comprises at least two sensing means.

137. A monitoring device as claimed in claim 135, wherein the processor is capable of processing at least two forms of information selected from cardio, respiratory, physiological and/or other information, to derive data relating to a welfare indication of a wearer.

138. A monitoring device as claimed in claim 135, wherein the monitoring device is capable of detecting cardio, respiratory, physiological and/or other information relating to one or more of the following:

a) an electrical view of the heart of a person;

b) the respiration effort of a person;

c) the blood oxygen level of a person;

d) the skin surface impedance of a person;

e) whether there is correct skin electrode and person contact;

f) the skin surface temperature of a person;

g) whether a specific activity is being undertaken by a person;

h) whether a person has been effected by an impact;

i) the body orientation of a person;

j) the movement of a person;

k) the level of ambulation of a person;

l) the absence of expected data;

m) the cognitive state of a person;

n) a person'"'"'s own assessment of welfare; and

/or

o) whether excessive gravitational forces are being exerted on a person.

139. A monitoring device as claimed in claim 135, wherein the thresholds and configurable data are automatically, manually or remotely modifiable or learned for a specific person, or derivable from previous analysis, and/or comparison of cardio, respiratory, physiological and/or other information and the thresholds.

140. A monitoring device as claimed in claim 135, wherein the thresholds and configurable data are modifiable as a result of contextual information relating to a person, wherein the contextual information relates to one or more of the following:

a) whether a person is moving;

b) whether a person has been effected by an impact;

c) whether a person is carrying out a specific activity;

d) the current or recent level of ambulation or activity levels of a person;

e) environmental factors experienced a person;

or

f) the cognitive state of a person,

wherein the environmental factors include;

i) ambient temperature;

ii) ambient pressure;

iii) altitude;

iv) humidity;

or

v) relative motion of the person.

141. A monitoring device as claimed in claim 135, capable of providing the configurable data from analysis of time-thresholds which conditions must be measured before a transition in the welfare indication occurs for one or more of the following conditions:

a) high, low or intermediate signal rates;

b) an absence of measurable signal rates;

c) the rate of change of an averaged signal rate;

d) averages of a measured signal rate;

e) the short-term average of a measured signal rate;

f) the long-term average of a measured data signal rate;

e) the normal or abnormal characteristics of a waveform;

intermediate average of a measured signal rate;

or

g) the time-threshold periods for transitions and/or average windows.

142. A monitoring device as claimed in claim 135, wherein the welfare indication is capable of being overridden or reduced in severity by additional contextual information experienced by a person.

143. A monitoring device as claimed in claim 135, wherein the sensitivity of detection is modifiable in response to the activity status, level of ambulation and/or body position detected by the monitoring device, and/or contextual information experienced by a person.

144. A monitoring device as claimed in claim 135, capable of comparing more than one measurement of cardio information to provide a cardio confidence score and/or capable of comparing more than measurement of respiratory information to provide a respiratory confidence score.

145. A monitoring device as claimed in claim 144, capable of analysing the cardio confidence score and the respiratory confidence score, together with data relating to the individual signal quality or contextual information to provide an overall confidence score.

146. A monitoring device as claimed in claim 135, wherein the welfare indication comprises a state of:

absence or substantial absence of vital signs, following an absence of vital signs over a time threshold.

147. A monitoring device as claimed in claim 135, wherein the monitoring device is capable of modifying the severity of its welfare indication and the time threshold for indicating the welfare indication following detection of the absence, or substantial absence, of one or more cardio or respiratory measures.

148. A monitoring device as claimed in claim 135, wherein, when a person has initially a normal welfare indication or a low-level abnormal welfare indication, a second cardio and/or respiratory measurement is triggerable automatically following determination of an abnormal welfare indication or progressively abnormal welfare indication.

149. A monitoring device as claimed in claim 135, wherein a secondary welfare indication is provided by analysis of thermal and/or neurological information.

150. A monitoring device as claimed in claim 149, wherein a cognitive state of a person is manually determinable by a monitoring station requesting the wearer to carry out an action.

151. A monitoring device as claimed in claim 149, wherein a/the cognitive state of a wearer is automatically determinable following:

a variable or set time period;

an abnormal welfare indication;

or evidence of excessive g-shock to a person, by the person being automatically requested to carry out an action by visual, audible, vibrational or other sensory means.

152. A monitoring device as claimed in claim 150, wherein an abnormal welfare indication is cancellable or movable towards normal, or a worsening of his/her welfare can be indicated, by a person responding to the request to carry out the action.

153. A monitoring device as claimed in claim 135, wherein the monitoring device is capable of abbreviated disclosure, when only a subset of the information is communicated to the monitoring station, or full-disclosure, when all digitised information, or some or all of the waveforms of the cardio, respiratory, physiological and/or other information, is communicated to the monitoring station.

154. A monitoring device as claimed in claim 153, wherein full-disclosure can be activated automatically by determination of an abnormal welfare indication, or is manually-activatable by a person or by the monitoring station.

155. A monitoring device as claimed in claim 153, wherein the subset comprises one or more of:

a) primary and/or secondary welfare indication;

b) heart and/or respiration rate;

c) skin temperature;

d) motion and/or activity level;

e) body orientation;

f) user identification information;

g) unit identification information;

h) unit self-check diagnostics; and

/or

i) confidence scores.

156. A monitoring device as claimed in claim 135, further comprising a request and response device, wearable by a person, for communication with the monitoring device and/or the monitoring station.

157. A monitoring device as claimed in claim 135, wherein assessment of a person'"'"'s welfare is optimised by transmittal and storage of wearer-personalisation information, environment information and/or activity information by the monitoring station, any intermediate equipment and/or the monitoring device.

158. A monitoring device as claimed in claim 135, further comprising connectable external sensors for detection of further cardio, respiratory, physiological and/or other information.

159. A monitoring device as claimed in claim 135, capable of detecting the presence of motion of a person and using the evidence of motion to reduce the bandwidth of the cardio signal receiver to improve the signal to noise ratio and improve performance, and/or the monitoring device is capable of detecting the presence of motion and body position of a person and using evidence of motion and body position to modify the signal gain, bandwidth and sensitivity of the respiratory signal receiver to improve performance.

172. A monitoring system for monitoring of one or more persons comprising:

a monitoring device as claimed in claim 135, wearable by the or each person being monitored; and

one or more monitoring stations, wherein;

the or each monitoring device is in communication with the one or more monitoring stations; and

the one or more monitoring stations receive and monitor the computed welfare indication from the or each monitoring device to assess the wellbeing of each person being monitored.

173. A monitoring system as claimed in claim 172, wherein configurable parameters may be determined, and adjusted, recorded and stored within the monitoring device whilst in a training mode, for use when the monitoring device is not in a training mode.

160. A monitoring device wearable by a person to be monitored, comprising:

a detachable anatomically-shaped sensor electronics module comprising processing means, memory means and communications means; and

a connector, harness and/or other support wearable by a person, capable of attaching, or holding in sensory/sensing proximity, the sensor electronics module to a person, and comprising one or more sensing means, wherein the monitoring device;

senses cardio, respiratory, physiological and/or other information from a person; and

performs real-time analysis of the sensed information and computes a real-time welfare indication of the person for onwards transmission/communication.

161. A monitoring device as claimed in claim 160, wherein the one or more sensing means comprise at least two sensing means.

162. A monitoring device as claimed in claim 160, the monitoring device comprises means for detecting skin temperature, wherein the means for detecting is a thermistor.

163. A monitoring device as claimed in claim 160, the monitoring device comprises means for detection of motion, body position and/or impact, wherein the means for detection is an accelerometer.

164. A monitoring device as claimed in claim 160, wherein the monitoring device further comprises a chest-expansion sensor, wherein the sensor is a variable strain sensor.

165. A monitoring device as claimed in claim 160, wherein the monitoring device comprises means for detecting blood oxygen levels of a user, wherein the means is a reflectance-type sensor for pulse oximetry analysis.

166. A monitoring device as claimed in claim 160, wherein the sensor electronics module is capable of measuring, processing, analysing and/or onwards transmission of information relating to one or more of the following:

a) an electrical view of the heart of a person;

b) the respiration effort of a person;

c) the blood oxygen level of a person;

d) the skin surface impedance of a person;

e) whether there is correct skin electrode and person contact;

f) the skin surface temperature of a person;

g) whether a specific activity is being undertaken by a person;

h) whether a person has been effected by an impact;

i) the body orientation of a person;

j) the movement of a person;

k) the level of ambulation of a person;

l) the absence of expected data;

m) the cognitive state of a person;

n) a person'"'"'s own assessment of welfare; and

/or

o) whether excessive gravitational forces are being exerted on a person.

167. A monitoring device as claimed in claim 160, wherein the sensor electronics module is anatomically-shaped to fit the thoracic region, or in the region of the sternum and upper abdomen, of a person.

168. A monitoring device as claimed in claim 160, wherein the wearable monitoring device comprises three skin electrodes.

169. A monitoring device as claimed in claim 160, wherein the connector harness and/or other support comprises one or more of the following:

a) an adhesive pad;

b) a yolk;

c) an item of clothing;

or

d) standard electrocardiograph adhesive skin electrodes.

170. A monitoring device as claimed in claim 169, wherein the adhesive pad is anatomically-shaped to fit the thoracic region, or in the region of the sternum and upper abdomen, of a person.

171. A monitoring device as claimed in claim 160, wherein the sensor electronic module comprises an electrical interconnect which enables connection of one or more of the following:

wired computing terminals;

auxiliary sensors;

an auxiliary pulse oximetry module; and

/or

a power source,

or a data link for connection of;

auxiliary sensors;

monitoring equipment;

transmission equipment;

or

any auxiliary electrical equipment, in the form of a request and response device.

174. A monitoring system for monitoring of one or more persons comprising:

a monitoring device as claimed in claim 160, wearable by the or each person being monitored; and

one or more monitoring stations, wherein;

the or each monitoring device is in communication with the one or more monitoring stations; and

the one or more monitoring stations receive and monitor the computed welfare indication from the or each monitoring device to assess the wellbeing of each person being monitored.

175. A monitoring system as claimed in claim 174, wherein configurable parameters may be determined, and adjusted, recorded and stored within the monitoring device whilst in a ‘

training mode’

, for use when the monitoring device is not in a training mode.

176. A monitoring device wearable by a person to be monitored, comprising:

one or more sensing means for sensing cardio, respiratory, physiological and/or other information from the person;

processing means for analysing the sensed information and capable of processing the (primary) cardio, respiratory, physiological and/or other information to derive secondary cardio, respiratory, physiological and/or other information;

memory means for storing the sensed and/or analysed information; and

communication means for transmitting at least a portion of the analysed information, wherein;

at least one waveform acquired from the sensed cardio, respiratory, physiological and/or other information is digitised in real-time;

analysis of the sensed and/or digitised information is performed in real-time and a welfare indication of the person computed in real-time; and

the computed welfare indication of the person is transmitted by the communication means and/or stored in the memory means,

the welfare indication is determinable by analysis and/or comparison of at least two forms of information selected from the primary and/or secondary cardio, respiratory, physiological and/or other information, with thresholds from configurable data stored in the memory, wherein the thresholds and configurable data are modifiable for a type or range of activities or environments, and the thresholds and configurable data are automatically, manually or remotely modifiable or learned for a specific person, or derivable from previous analysis, and/or comparison of cardio, respiratory, physiological and/or other information and the thresholds.

177. A monitoring device wearable by a person to be monitored, comprising:

one or more sensing means for sensing cardio, respiratory, physiological and/or other information from the person;

processing means for analysing the sensed information and capable of processing the (primary) cardio, respiratory, physiological and/or other information to derive secondary cardio, respiratory, physiological and/or other information;

memory means for storing the sensed and/or analysed information; and

communication means for transmitting at least a portion of the analysed information, wherein;

at least one waveform acquired from the sensed cardio, respiratory, physiological and/or other information is digitised in real-time;

analysis of the sensed and/or digitised information is performed in real-time and a welfare indication of the person computed in real-time; and

the computed welfare indication of the person is transmitted by the communication means and/or stored in the memory means,

the welfare indication is determinable by analysis and/or comparison of at least two forms of information selected from the primary and/or secondary cardio, respiratory, physiological and/or other information, with thresholds from configurable data stored in the memory, and the thresholds and configurable data are modifiable for a type or range of activities or environments, wherein the sensitivity of detection is modifiable in response to the activity status, level of ambulation and/or body position detected by the monitoring device, and/or contextual information experienced by a person.

178. A monitoring device wearable by a person to be monitored, comprising:

a detachable anatomically-shaped sensor electronics module comprising processing means, memory means and communications means; and

a connector, harness and/or other support wearable by a person, capable of attaching, or holding in sensory/sensing proximity, the sensor electronics module to a person, and comprising one or more sensing means, wherein the monitoring device;

senses cardio, respiratory, physiological and/or other information from a person; and

performs real-time analysis of the sensed information and computes a real-time welfare indication of the person for onwards transmission/communication, wherein the monitoring device comprises means for detecting blood oxygen levels of a user.