Automatic analysis of uterine activity signals and application for enhancement of labor and delivery experience

Patent metadata

Field	Value
Publication number	US-10085660-B2
Application number	US-201314429000-A
Country	US
Kind code	B2
Filing date	Sep 19, 2013
Priority date	Sep 19, 2012
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A uterine activity analysis apparatus, comprising a rendering device at least one controller coupled to the rendering device, and configured to acquire a uterine activity signal (UAS) corresponding to uterine activity of a patient; determine uterine activity information based upon the acquired UAS and render, on the rendering device, content based at least in part including UAS upon the determined uterine activity information. The controller may compare the determined uterine activity information with threshold uterine activity information and provide clinical decision support (CDS) based upon the decision. Furthermore, the controller may render a breathing guide to illustrate a preferred breathing pattern, when the start of a contraction is detected.

First claim

The invention claimed is:

1. A uterine activity analysis apparatus, the apparatus comprising:
a display; and
at least one controller configured to:
continuously monitor uterine activity information of a patient during a time period by:
acquiring, via one or more sensors, a uterine activity signal corresponding to uterine activity of the patient during the time period, and
determining, during the time period, the uterine activity information based upon the acquired uterine activity signal, the uterine activity information comprising information related to at least one parameter of the acquired uterine activity signal being indicative of a contraction,

provide, via the display, an animated breathing guide configured to indicate to the patient when to inhale and exhale; and
continuously update, during the time period, the animated breathing guide based on the continuously monitored uterine activity information,
wherein the animated breathing guide comprises a series of animated components configured to increase in size to indicate inhalation and decrease in size to indicate exhalation.

2. The apparatus of claim 1 , wherein the animated breathing guide is automatically synchronized to the patient's contractions based on the continuously monitored uterine activity signal to continuously update the animated breathing guide during the time period.

3. The apparatus of claim 1 , wherein the series of animated components is a series of animated roundels configured to increase in size to indicate inhalation and decrease in size to indicate exhalation.

4. The apparatus of claim 1 , wherein the at least one parameter comprises a threshold signal, a derivative signal with respect to time, a moving percentile, a baseline offset, and/or a cleaned signal.

5. The apparatus of claim 4 , wherein the at least one controller is further configured to determine the uterine activity information by:
continuously tracking a local percentile over the time period; and
estimating the baseline offset based on the continuously tracked local percentile.

6. The apparatus of claim 5 , wherein the at least one controller is further configured to determine the uterine activity information further by:
generating, via a signal smoother, a smoothed uterine activity signals during the time period based on the continuously acquired uterine activity;
removing the baseline offset from the smoothed uterine activity signal to obtain the cleaned signal; and
determine, during the time period, the uterine activity information based on the cleaned signal.

7. The apparatus of claim 5 , wherein the at least one controller is further configured to determine the uterine activity information by:
determining, based on the at least one parameter, contraction state information, the contraction state information comprising an outside contraction, a start of the outside contraction, an ascending part of the outside contraction, a peak time of the outside contraction, a descending part of the outside contraction, an end time of the outside contraction, time between two contractions, and/or a duration of the outside contraction.

8. The apparatus of claim 7 wherein the at least one controller is further configured to:
continuously update the animated breathing guide by controlling movement of an animated component of the series of the animated components relative to other animated components of the series of the animated components based on the contraction state information.

9. The apparatus of claim 8 , wherein a distance between two or more animated components of the series of animated components indicates time between two contractions.

10. The apparatus of claim 8 , wherein a size of at least one animated component of the series of animated components indicates a duration of the patient's contractions.

11. The apparatus of claim 1 , wherein the at least one controller is further configured to:
determine whether a magnitude of the uterine activity information reaches a threshold value; and
responsive to the threshold value being reached, causing a medication to be administered to the patient.

12. The apparatus of claim 1 , wherein the apparatus comprises the one or more sensors.

13. The apparatus of claim 1 , wherein continuously monitoring the uterine activity information comprises periodically acquiring the uterine activity signal via the one or more sensors during the time period.

14. A method for uterine activity analysis and providing interactive guidance during labor and delivery, the method comprising:
continuously monitoring, via one or more physical processor, uterine activity information of a patient during a time period by:
acquiring, via one or more sensors, a uterine activity signal corresponding to uterine activity of the patient during the time period, and
determining, during the time period, the uterine activity information based upon the acquired uterine activity signal, the uterine activity information comprising information related to at least one parameter of the acquired uterine activity signal being indicative of a contraction;

providing, via a display, an animated breathing guide configured to indicate to the patient when to inhale and exhale; and
continuously updating, via the one or more physical processor, the animated breathing guide based on the continuously monitored uterine activity information,
wherein the animated breathing guide comprises a series of animated components configured to increase in size to indicate inhalation and decrease in size to indicate exhalation.

15. The method of claim 14 , wherein the animated breathing guide is automatically synchronized to the patient's contractions based on the continuously monitored uterine activity signal to continuously update the animated breathing guide during the time period.

16. The method of claim 14 , wherein the series of animated components is a series of animated roundels configured to increase in size to indicate inhalation and decrease in size to indicate exhalation.

17. The method of claim 14 , further comprising:
continuously updating the animated breathing guide by controlling movement of an animated component of the series of the animated components relative to other animated components of the series of the animated components based on the contraction state information.

18. The method of claim 17 , wherein a distance between two or more animated components of the series of animated components indicates time between two contractions.

19. The method of claim 17 , wherein a size of at least one animated component of the series of animated components indicates a duration of the patient's contractions.

20. A system for uterine activity analysis and providing interactive guidance during labor and delivery, the system comprising:
a display; and
at least one controller configured to:
continuously monitor uterine activity information of a patient during a time period by:
acquiring, via one or more sensors, a uterine activity signal corresponding to uterine activity of the patient during the time period,
determining, during the time period, the uterine activity information based upon the acquired uterine activity signal, the uterine activity information comprising information related to at least one parameter of the acquired uterine activity signal being indicative of a contraction, and
determining, based on the at least one parameter, contraction state information, the contraction state information comprising an outside contraction, a start of the outsid

Assignees

• Koninklijke Philips Nv

Inventors

• Van De Laar Jakob
• Kierkels Jeanine Johanna Maria

Classifications

• A61B5/4356

  Assessing uterine contractions (A61B5/033 takes precedence) · CPC title

• A61B5/04882

  Human Necessities · mapped topic

• A61B5/033 Primary

  Uterine pressure · CPC title

• A61B5/03

  Measuring fluid pressure within the body other than blood pressure, e.g. cerebral pressure {; Measuring pressure in body tissues or organs (determining bladder or urethral pressure A61B5/205)} · CPC title

• G06F3/0482

  Interaction with lists of selectable items, e.g. menus · CPC title