Enhanced electronic external fetal monitoring system

• US 9,820,718 B2
• Filed: 03/01/2013
• Issued: 11/21/2017
• Est. Priority Date: 03/01/2012
• Status: Active Grant

• Current Assignee: Syracuse University
• Original Assignee: Syracuse University
• Inventors: Flomerfelt, Kimberly, Mather, Patrick
• Primary Examiner(s): LAURITZEN, AMANDA L
• Application Number:
  US13/782,559
• Publication Number:
  US 20130281861A1
• Time in Patent Office: 1,726 Days
• CPC Class Codes: A61B 5/0011 Foetal or obstetric data
• 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 5/02411 of foetuses
• CPC Class Codes: A61B 5/4356 Assessing uterine contractions A61B5/033 takes precedence
• CPC Class Codes: A61B 5/4362 Assessing foetal parameters
• CPC Class Codes: A61B 8/02 Measuring pulse or heart rate
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/0866 involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
• CPC Class Codes: A61B 8/4236 characterised by adhesive patches
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61B 8/488 involving Doppler signals

Abstract

The present invention relates to fetal monitoring and, more particularly, to an electronic external fetal monitoring system that includes a self adhering single use dermal patch including embedded sensors that can be attached to the skin of an expectant maternal patient and is configured to record fetal heart rate, uterine activity, and uterine integrity.

Claims

1. An electronic external fetal monitoring system comprising:

a. a planar dermal patch comprising a first side configured to adhere to the surface of the skin of a pregnant patient, said first side further comprising;

i. a first portion embedded in said first side and configured to monitor and detect heart rate data;

ii. a second portion embedded in said first side and configured to monitor and detect uterine activity data; and

iii. a third portion embedded in said first side and configured to monitor and detect uterine integrity data comprising an acoustic ultrasonic Doppler flow imaging sensor configured to detect blood or amniotic fluid leaking outside the uterine wall, and wherein said uterine integrity data is selected from the group consisting of previous cesarean section integrity data and uterine scarring integrity; and

b. a computer configured to temporally combine fetal heart rate data acquired from the first portion and uterine activity data acquired from the second portion.

2. The electronic external fetal monitoring system of claim 1, wherein said first side further comprises a self-adhering adhesive material.

3. The electronic external fetal monitoring system of claim 1, wherein at least one of said first portion, said second portion, and said third portion further comprises a layer of acoustic coupling gel.

4. The electronic external fetal monitoring system of claim 1, wherein the heart rate data is selected from fetal heart rate and maternal heart rate.

5. The electronic external fetal monitoring system of claim 4, wherein said first portion is further configured to measure the detected fetal heart rate pursuant to a pitch-catch ultrasound technique.

6. The electronic external fetal monitoring system of claim 4, wherein said first portion is further configured to measure the detected fetal heart rate pursuant to a real-time ultrasound technique.

7. The electronic external fetal monitoring system of claim 1, wherein each of said first portion, said second portion, and said third portion is configured to collect or record at least one selected from the group consisting of the heart rate data, the uterine activity data, and the uterine integrity data.

8. The electronic external fetal monitoring system of claim 7, wherein each of detect, collect, and record the heart rate data, the uterine activity data, and the uterine integrity data, respectively, in real time.

9. The electronic external fetal monitoring system of claim 7, further comprising a fourth portion configured to transmit the heart rate data, the uterine activity data, and the uterine integrity data to a computer device.

10. The electronic external fetal monitoring system of claim 9, wherein the transmission of data is accomplished wirelessly.

11. The electronic external fetal monitoring system of claim 1, wherein said first portion further comprises an ultrasonic transducer comprising a piezoelectric polymer strip.

12. The electronic external fetal monitoring system of claim 11, wherein the second portion comprises a sensor selected from the group consisting of a pressure disc, a strain gauge and a physiologic change sensor.