High-Frequency Electrical Stimulation for Bladder Contraction Inhibition
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Solution Overview
Problem
Current medical devices are inadequate in effectively managing urinary and fecal incontinence, as they fail to inhibit bladder and bowel contractions efficiently, leading to involuntary voiding and urge incontinence.
Innovation Solution
A medical device configured to deliver high-frequency electrical stimulation (500 Hz or greater) between contractions of the bladder or bowel to inhibit muscle contractions, using processors to control the delivery of therapy and modulate nerve signals, thereby preventing undesired contractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-frequency electrical stimulation is delivered between bladder contractions, then bladder contraction inhibition is improved, but device complexity increases
Solution Approach 1:
The device dynamically adjusts stimulation parameters based on real-time detection of bladder contraction cycles. The processor monitors bladder activity and modulates the electrical stimulation frequency and intensity accordingly, delivering high-frequency stimulation specifically during the inter-contraction period when it is most effective for inhibition, while reducing or suspending stimulation during active contractions to maintain device simplicity and avoid unnecessary complexity.
Solution Approach 2:
The system incorporates feedback mechanisms where the processor continuously monitors bladder contraction signals and uses this information to control the delivery of electrical stimulation. By detecting the timing and intensity of bladder contractions, the device automatically adjusts its stimulation pattern to deliver therapy only when needed (between contractions), thereby improving inhibition effectiveness while maintaining relatively simple device architecture through intelligent control algorithms.
2Reliability
If high-frequency electrical stimulation is delivered to inhibit bowel contractions, then fecal incontinence management is improved, but energy consumption increases
Solution Approach 1:
The device delivers electrical stimulation in periodic bursts synchronized with the natural bowel contraction cycle rather than continuous delivery. The processor detects bowel contraction patterns and programs the stimulation to occur in high-frequency bursts during the inter-contraction periods, then pauses during active contractions. This periodic delivery pattern maintains effective bowel contraction inhibition while significantly reducing overall energy consumption compared to continuous stimulation.
Solution Approach 2:
The system dynamically changes stimulation parameters including frequency, amplitude, and pulse width based on the detected bowel activity state. During inter-contraction periods when inhibition is needed, the device delivers high-frequency stimulation at optimized amplitude levels. During active contractions, the device reduces or suspends stimulation to conserve energy. This adaptive parameter adjustment maintains therapeutic effectiveness while minimizing energy consumption.
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
The high-frequency electrical stimulation effectively inhibits bladder and bowel contractions, reducing the frequency and severity of involuntary voiding events, thereby improving continence management.
Implementation Method 1
deliver high-frequency electrical stimulation (500 Hz or greater) between contractions of the bladder or bowel to inhibit muscle contractions
Data Source
AI summary
In one example, a method including generating electrical stimulation therapy with a frequency of approximately 500 hertz or greater, and controlling delivery of the electrical stimulation therapy to a patient via a medical device between at least one of contractions of a bladder or contractions of a bowel of a patient, wherein the electrical stimulation therapy comprises electrical stimulation therapy configured to inhibit contraction of the bladder when the electrical stimulation is delivered between the contractions of the bladder, wherein the electrical stimulation therapy comprises electrical stimulation therapy configured to inhibit contraction of the bowel when the electrical stimulation is delivered between the contractions of the bowel, and wherein at least one of the generating and controlling is performed via one or more processors.