Battery-Powered Electrical Treatment Device Waveform Control
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Solution Overview
Problem
Low-frequency treatment devices with battery power sources often interrupt treatment due to low battery levels, as they do not have technology to manage remaining power effectively.
Innovation Solution
An electrical treatment device with a remaining power detection unit, impedance measurement, and a treatment execution unit that modifies the voltage waveform to ensure treatment completion based on calculated power consumption, reducing amplitude, increasing pulse width, or decreasing frequency to conserve battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a battery-powered low-frequency treatment device is used to provide electrical stimulation, then portability and ease of operation are improved, but treatment may be interrupted when battery power becomes insufficient
Solution Approach 1:
The device performs preliminary actions by detecting remaining battery power before treatment starts and calculating whether the treatment can be completed. The control unit determines in advance if the battery power is sufficient for the full treatment duration, and if not, modifies the voltage waveform parameters beforehand to ensure treatment completion, thereby preventing interruptions during actual treatment.
2Duration of action of moving object
If the voltage waveform amplitude is reduced to conserve battery power, then treatment duration can be extended, but the intensity of electrical stimulation decreases
Solution Approach 1:
The control unit changes multiple parameters of the voltage waveform simultaneously: reducing amplitude to lower power consumption, increasing pulse width to maintain stimulation effectiveness, and adjusting frequency. By coordinating these parameter changes, the device extends treatment duration while minimizing the reduction in stimulation intensity, as the increased pulse width compensates for the reduced amplitude.
3Power
If the pulse width is increased to maintain stimulation intensity with lower amplitude, then power consumption characteristics change, but the energy per pulse increases
Solution Approach 1:
The control unit performs coordinated parameter changes by simultaneously adjusting amplitude and pulse width. The amplitude is reduced to decrease instantaneous power consumption, while the pulse width is increased to maintain the total energy delivery and stimulation effectiveness. This balanced approach allows the device to operate within battery power constraints while preserving therapeutic efficacy.
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
Prevents treatment interruptions by modifying the voltage waveform to ensure treatment can be completed within the available battery power, maintaining the intensity of electrical stimulation and extending treatment time.
Implementation Method 1
an impedance measurement unit configured to measure a bioelectrical impedance of a site on a body of the user by using electrodes that come into contact with the site
Data Source
AI summary
An electrical treatment device (200) includes a remaining power detection unit (302) that detects a remaining battery power of the electrical treatment device (200); a treatment content setting unit (306) that sets a treatment content; an impedance measurement unit (304) that measures a bioelectrical impedance of a site on a body of a user by using electrodes that come into contact with the site; a treatment execution unit (312) that performs treatment of the site by controlling a voltage waveform applied to the electrodes; and a determination unit (310) that determines whether treatment in accordance with the treatment content can be executed up until a treatment time elapses on the basis of a current remaining battery power and a power consumption calculated from the bioelectrical impedance and the voltage waveform. When treatment in accordance with the treatment content cannot be executed up until the treatment time elapses, the treatment execution unit (312) modifies a voltage waveform corresponding to the treatment content currently set so that treatment can be executed up until the treatment time elapses, and outputs the modified voltage waveform.