System and method of monitoring patients in hospital beds

• US 10,524,702 B2
• Filed: 03/06/2017
• Issued: 01/07/2020
• Est. Priority Date: 08/16/2016
• Status: Active Grant

• Current Assignee: I-Healthsys Produtos Medicos Ltda - ME, Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein
• Original Assignee: Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein
• Inventors: Marra, Alexandre Rodrigues, Pavao Dos Santos, Oscar Fernando, Prado, Marcelo, Massini Junior, Renaldo, Machado Gagliardi, Guilherme, Kermentz Ferraz Costa, Felipe, De Souza Santini, Tales Roberto, Costa Neto, Alvaro
• Primary Examiner(s): Safaipour, Bobbak
• Application Number:
  US15/450,423
• Publication Number:
  US 20180049677A1
• Time in Patent Office: 1,037 Days
• CPC Class Codes: A61B 2576/00 Medical imaging apparatus involving image processing or analysis A61B1/00009, A61B6/52 and A61B8/52 take precedence; image processing per se G06T; details of algorithms for analysing medical images G06T7/0012
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/015 By temperature mapping of body part
• CPC Class Codes: A61B 5/1077 Measuring of profiles
• CPC Class Codes: A61B 5/1079 using optical or photographic means
• CPC Class Codes: A61B 5/1115 Monitoring leaving of a patient support, e.g. a bed or a wheelchair
• CPC Class Codes: A61B 5/1128 using image analysis A61B5/1127 takes precedence
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing

Abstract

The present invention discloses a system of monitoring patients in hospital beds, the system comprising: at least one image capture element (2) disposed in a hospital bed (10) and configured to generate an image parameter (11) of a patient (12) disposed in the hospital bed (10). The system further comprises at least one processor, configured to generate a temperature map (13) of the patient (12) from the image parameter (11). Also disclosed is a method (40) of monitoring patients in hospital beds.

Claims

1. A system of monitoring patients in hospital beds, the system comprising:

at least one image capture element disposed in a hospital bed and configured to generate an image parameter of a patient disposed in the hospital bed; and

at least one processor configured to generate a temperature map of the patient from the image parameter;

wherein the processor is further configured to generate, from the image parameter, a segmented model of the patient, the segmented model representing a vector illustration of the patient'"'"'s body, wherein the segmented model comprises a plurality of segments, and wherein the processor is further configured to;

determine a temperature parameter of at least one segment of the segmented model;

determine a midpoint of each segment of the segmented model;

determine a position and an orientation of each midpoint of each segment of the segmented model; and

generate at least one movement parameter of the patient from the analysis of the position and of the orientation of each midpoint of each segment of the segmented model generated at different time instants.

2. The system according to claim 1, wherein the processor is configured to generate, from the image parameter, a contour of the image parameter of the patient.

3. The system according to claim 2, wherein from the segmented model of the patient, the processor is configured to indicate at least one region of a body of the patient, each region comprising at least one segment of the segmented model.

4. The system according to claim 1, wherein the processor is configured to generate a movement map with the generated segmented models, the movement map being preferably generated considering time instants defined by a user of the system.

5. The system according to claim 1, wherein the movement parameters are generated based on a kinematic calculation of the position and of the orientation of the midpoints generated at different time instants.

6. The system according to claim 5, wherein the processor is configured to indicate to a user of the system if at least one of the temperature parameters, the movement parameters, or the segmented model are outside predefined limits.

7. A method of monitoring patients in hospital beds, the hospital bed comprising at least one image capture element, such that the image capture element is associated with a processor, the method comprising the steps of:

generating an image parameter of a patient disposed in the hospital bed;

generating, thereafter, a temperature map of the patient from the generated image parameter;

wherein the method further comprises the steps of;

generating a segmented model of the patient at subsequent time instants, the segmented model representing a vector illustration of the patient'"'"'s body, wherein the segmented model comprises a plurality of segments;

determining a temperature parameter of at least one segment of the segmented model;

determining a midpoint of each segment of the segmented model;

determining a position and an orientation of each midpoint of each segment of the segmented model; and

generating at least one movement parameter of the patient from the analysis of the position and of the orientation of each midpoint of each segment of the segmented model generated at different time instants.

8. The method, according to claim 7, wherein it further comprises the steps of:

generating from the image parameter, a contour of the image parameter of the patient and a segmented model of the patient; and

indicating, from the segmented model, at least one region of a body of the patient, each region comprising at least one segment of the segmented model.

9. The method, according to claim 8, wherein it further comprises the steps of:

generating a movement map with the generated segmented models, the movement map considering time instants defined by a user of the method of monitoring patients in hospital beds.

10. The method, according to claim 9, wherein

the movement parameters are generated based on a kinematic calculation of the position and of the orientation of the midpoints generated at different time instants.

11. The method, according to claim 10, wherein it further comprises the steps of:

overlapping each segmented model with each generated temperature map; and

indicating to the user of the method of monitoring patients in hospital beds at least one of the image parameters, temperature map, segmented model, movement map, temperature parameters, movement parameters of the patient, the method further comprising the step of;

indicating to the user of the method of monitoring patients in hospital beds if at least one of the temperature parameters, movement parameters and segmented model is outside predefined limits.