Postpartum Uterine EMG Feedback Stimulation for PPH Risk Control
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Solution Overview
Problem
Current systems fail to comprehensively evaluate risk factors for postpartum hemorrhage (PPH) and provide proactive monitoring to identify high-risk patients, often leading to delayed diagnosis and treatment.
Innovation Solution
A maternal monitoring system that combines ultrasound imaging, EMG monitoring, and stimulation to assess uterine activity, using surface electrodes to deliver stimulation pulses and adjust based on EMG data to stimulate uterine muscle contraction, and a control system to optimize stimulation parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If routine medication administration and trauma avoidance measures are used to prevent PPH, then prevention is attempted, but PPH remains difficult to predict and can occur without risk factors
Solution Approach 1:
The system performs preliminary monitoring and evaluation of uterine activity and risk factors before PPH occurs. By continuously assessing EMG data, uterine contraction patterns, and patient parameters in real-time, the system identifies at-risk patients early and enables proactive intervention before hemorrhage begins.
Solution Approach 2:
The system continuously monitors EMG data from surface electrodes and uses this feedback to adjust stimulation parameters dynamically. The control system receives real-time information about uterine response to stimulation and modifies subsequent stimulation pulses accordingly, creating a closed-loop control system that adapts to individual patient responses.
2Measurement precision
If comprehensive monitoring and stimulation systems are implemented, then proactive identification of PPH risk factors is enabled, but device complexity increases
Solution Approach 1:
The surface electrodes serve multiple functions: they detect EMG signals for monitoring uterine activity, provide reference potentials for signal processing, and deliver stimulation pulses to the uterus. This multi-functionality reduces the need for separate components and simplifies the overall system architecture.
Solution Approach 2:
The system automatically processes EMG data, identifies risk factors, and adjusts stimulation parameters without requiring constant manual intervention. The control system autonomously analyzes monitoring data and makes real-time decisions about stimulation delivery, reducing operational complexity.
3Productivity
If stimulation pulses are delivered to stimulate uterine muscle contraction, then uterine shrinkage is achieved, but control based on EMG response is required
Solution Approach 1:
The control system continuously monitors EMG responses during stimulation and uses this feedback to adjust subsequent stimulation pulses. By analyzing the amplitude and characteristics of EMG signals, the system dynamically modifies stimulation parameters to optimize uterine contraction effectiveness while avoiding excessive stimulation.
Solution Approach 2:
The stimulation parameters are made dynamic rather than static. The control system adjusts pulse amplitude, frequency, and duration in real-time based on the patient's individual response to stimulation and the stage of postpartum recovery, allowing the system to adapt to changing physiological conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables proactive identification of PPH risk factors, allowing early intervention and prevention or reduction of PPH through uterine muscle stimulation, improving maternal health outcomes.
Implementation Method 1
a stimulator connected to at least two of the plurality of surface electrodes and configured to generate stimulation pulses between at least two of the plurality of surface electrodes
Implementation Method 2
an EMG monitor configured to obtain EMG data from the plurality of surface electrodes
Data Source
AI summary
A system and method for stimulating a uterine muscle of a maternal patient after childbirth includes operating a plurality of surface electrodes configured to be disposed on an abdomen of a maternal patient and a stimulator connected to at least two of the plurality of surface electrodes and configured to generate stimulation pulses between at least two of the plurality of surface electrodes. A control system is configured to control the stimulator to deliver a plurality of stimulation pulses via the plurality of surface electrodes to the maternal abdomen to stimulate the uterine muscle of the maternal patient, such as to cause uterine shrinkage after childbirth.