Design of a low-cost neuromuscular blockade monitoring device

Electric power is the bedrock of our modern way of life. In Nigeria, power supply availability, sufficiency and reliability are major operational challenges. At the generation and transmission level, effort is made to ensure status monitoring and fault detection on the power network, but at the distribution level, particularly within domestic consumer communities there are no fault monitoring and detection devices except for HRC fuses at the feeder pillar. Unfortunately, these fuses are sometimes replaced by a copper wire bridge at some locations rendering the system unprotected and creating a great potential for transformer destruction on overload. This study is focused on designing an on-site power system monitoring device to be deployed on selected household entry power cables for detecting and indicating when phase off, low voltage, high voltage, over current, and blown fuse occurs on the building’s incomer line. The fault indication will help in reducing troubleshooting time and also ensure quick service restoration. After design implementation, the test result confirms design accuracy, device functionality and suitability as a low-cost solution to power supply system fault monitoring within local communities.

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Motion and Sash Height (MASH) alarms for efficient fume hood use

Scientific Reports ◽

10.1038/s41598-021-00772-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Johnathan Kongoletos ◽

Ethan Munden ◽

Jennifer Ballew ◽

Daniel J. Preston

Keyword(s):

Low Cost ◽

Energy Costs ◽

Monitoring Device ◽

Fume Hood ◽

Energy Expenditures ◽

Building Management ◽

Active Feedback ◽

Annual Carbon ◽

Building Management System ◽

Using Data

AbstractVentilation, including fume hoods, consumes 40–70% of the total energy used by modern laboratories. Energy-conscious fume hood usage—for example, closing the sash when a hood is unused—can significantly reduce energy expenditures due to ventilation. Prior approaches to promote such behaviors among lab users have primarily relied on passive feedback methods. In this work, we developed a low-cost fume hood monitoring device with active feedback to alert lab users when a fume hood is left open and unused. Using data collected by the building management system, we observed a 75.6% decrease in the average sash height after installation of these “Motion and Sash Height” (MASH) alarms, which would result in a reduction roughly equal to 43% of the annual carbon emissions of a typical American vehicle, for each fume hood. The MASH alarm presented here reduced energy costs by approximately $1,159 per year, per hood, at MIT.

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Evaluation of an Independent Neuromuscular Blockade Monitoring Device

2013 39th Annual Northeast Bioengineering Conference ◽

10.1109/nebec.2013.93 ◽

2013 ◽

Author(s):

Derek Smith ◽

Edan Golomb ◽

Kyle Ripley ◽

Jennifer Trinh ◽

Glen Atlas

Keyword(s):

Neuromuscular Blockade ◽

Monitoring Device

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Testing MD-Link, a Low-Cost Mobile Electrocardiography Monitoring Device, in Patients With Irregular Heartbeat: Protocol for a Cross-Sectional Study (Preprint)

10.2196/preprints.8762 ◽

2017 ◽

Author(s):

Precious J Kilimo ◽

Tai Le ◽

Ngoc T Phan ◽

Huy-Dung Han ◽

Hoc T Hoang ◽

...

Keyword(s):

Electrical Activity ◽

Mobile Device ◽

Low Cost ◽

Cross Sectional Study ◽

Lead Wire ◽

Daily Routine ◽

Monitoring Device ◽

Ecg Monitoring ◽

Sectional Study ◽

Cross Sectional

BACKGROUND Having mobile devices that provide patients with the ability to record and monitor the electrical activity of their heart enhances patient self-care and the early detection of irregular heartbeat (cardiac arrhythmia), yet few such devices exist in Vietnam. Challenges exist for introducing mobile electrocardiography (ECG) monitoring devices in Vietnam, including patient accessibility and affordability. A low-cost mobile ECG monitoring device designed and developed in Vietnam, which allows patients to easily measure their heart’s electrical activity and navigate recordings, may be a solution. OBJECTIVE The aim of this project is to assess the usability of the MD-Link system, a newly developed mobile handheld 1-lead ECG device, in detecting patients with irregular heartbeat. We will compare its outputs to the standard printed outputs of a 12-lead electrocardiogram generated by the Nihon Kohden Cardiofax S Electrocardiograph Model ECG-1250K. METHODS We will conduct a cross-sectional study in two stages, including the measurement of ECG signals of patients using the MD-Link and the Nihon Kohden Cardiofax S and analysis of the selected standard outputs collected from the ECG recordings of the MD-Link and the Nihon Kohden Cardiofax S. The MD-Link consists of (1) a mobile device (eg, a smartphone); (2) a lead wire with 2 disposable electrodes; and (3) an easy-to-use mobile app interface enabling the upload and accurate display of ECG recordings to patients and their clinicians. Our research team, consisting of members from Dartmouth College; the Institute of Health, Population and Development; Hanoi University of Science and Technology; and physicians and nurses from Thanh Chan Clinic, will assist in carrying out this project. RESULTS We will proceed with a publication plan that includes a project report and, ultimately, articles for peer-reviewed journals. We also hope to disseminate our work at relevant conferences to provide more coverage and exposure to the MD-Link mobile device. Recruitment and data collection were completed in January 2018. Data analysis started in February 2018 and is ongoing. Results are expected mid-2019. CONCLUSIONS At the end of this project, we will have developed and tested the MD-Link, a low-cost mobile ECG monitoring device, with some supportive comparisons to standard ECG devices commonly used in heart clinics or hospitals in Vietnam. Our long-term goal is for the MD-Link to be easily accessible, affordable, and to fit into a patient’s daily routine, thus improving the care and treatment of patients with cardiovascular diseases (CVDs). INTERNATIONAL REGISTERED REPOR RR1-10.2196/8762

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A study on problem diagnosis and maintenance guideline of small scale PV system

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.12.11102 ◽

2018 ◽

Vol 7 (2.12) ◽

pp. 105

Author(s):

Hee Chul Kim

Keyword(s):

Power Generation ◽

Monitoring System ◽

High Efficiency ◽

Low Cost ◽

Monitoring Device ◽

Cloud Type ◽

Pv System ◽

Solar Module ◽

Iot Platform ◽

Smoke Sensor

Background/Objectives: Research and development of low-cost, high-efficiency devices that can be installed without replacing existing power generation equipment is promoted early. It is aimed to prevent the damage of property and human life by detecting the fire of PV system. Therefore, it is possible to easily install the device without replacing the solar module The aim is to minimize the damage to people.Methods/Statistical analysis: In order to prepare for the safety accidents of the photovoltaic power generation facilities due to fire and blast, the monitoring system should have the following functions as essential. Measures and analyzes the voltage and current of power generated in each string in the connection board in real time. An alarm is triggered when an abnormality of a specific string is detected or when an abnormal temperature change is detected in the connection panel internal temperature sensor.If the smoke sensor inside the connection panel detects smoke generation and an abnormality such as a fire is caught, the monitoring system immediately generates an alarm.Findings: It provides services such as checking the status of customer power plants, improving power generation efficiency, and recovering quickly in case of a disaster through a monitoring system that supports stable operation of the PV plant and profit generation. By using the existing connection box function as it is, the company minimized the additional cost, and promoted and promoted a low-cost, high-efficiency system.Improvements/Applications: H/W module using temperature and smoke sensor is interlocked with existing connection semi-control system to develop efficient connection monitoring device. In order to link the sensor value with the monitoring system, messages are added and supplemented. For the application of the fail-safe solution, we developed a monitoring device to prevent the escape of the solar module and developed the H / W module using the vibration and loosening sensor. We will develop the solar monitoring system based on cloud type IoT platform by linking the fault recognition and alarm generation function by adding / supplementing the sensor value to link with the monitoring system.As a power station management for cloud type (ASP) service, adoption of oneM2M standard based IoT platform can expand acceptance by monitoring web and mobile based monitoring as well as real time monitoring and fault monitoring of solar power plant.

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Train of Four Monitoring Device

2020 Design of Medical Devices Conference ◽

10.1115/dmd2020-9038 ◽

2020 ◽

Author(s):

Anastasia Karapanagou ◽

Nicholas R. Bergstrom ◽

Christopher Beauregard ◽

Kyler B. Dillon ◽

Jeanine L. M. Skorinko ◽

...

Keyword(s):

Neuromuscular Blockade ◽

Human Subjects ◽

Monitoring Device ◽

Muscle Response ◽

Monitoring Technique ◽

Train Of Four ◽

Train Of Four Monitoring

Abstract Assessment of neuromuscular blockade during anesthesia is achieved using the Train of Four (TOF) monitoring technique. However, current devices are limited to conditions in which the hand can move freely during operation. The goal of this project was to design, prototype, and test a device which extends the TOF technique to conditions where movement is restricted. Interviews were conducted with stakeholders to better understand the need for this device and to get feedback on preliminary designs. The resulting device consists of a thumb-mounted balloon, which converts the force due to thumb twitches into pressure, which then acts as the physical analog to muscle response. This pressure is transduced and analyzed to produce a TOF count and TOF ratio. A prototype was constructed and tested on human subjects with different hand geometries.

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Design of Bolted Preload Electromechanical Impedance Monitoring Device for CubeSat

Volume 4: Dynamics, Vibration, and Control ◽

10.1115/imece2019-12216 ◽

2019 ◽

Author(s):

Zihan Zhang ◽

Jiacheng Li ◽

Fei Du ◽

Chao Xu

Keyword(s):

Temperature Compensation ◽

Layer Structure ◽

Low Cost ◽

Rapid Development ◽

Impedance Measurement ◽

Monitoring Device ◽

Time Service ◽

Electromechanical Impedance ◽

Bolt Loosening

Abstract With the rapid development of long-term orbiting spacecraft, deep space exploration and reusable carriers, spacecraft structures increasingly require safety and reliability. During the long-term service of the spacecraft structure, the bolts are prone to loosening. Electromechanical impedance (EMI) method is sensitive to bolt loosening. This paper developed a small integrated, low-power EMI monitoring device for CubeSat to detect bolt loosening, since CubeSat is low cost and has a long-time service in the orbit. The monitoring device is a two-layer structure of 0.6U. The upper layer is the experimental specimen layer. The other layer is the impedance measurement layer which can measure and transfer the impedance and temperature information. This layer consists of impedance measurement module, channel selection module, microprocessor module, communication module and power management module. The impedance results obtained by the monitoring device matched well with these by impedance analyzer. Besides, the influence of temperature on impedance measurement was studied, and two methods of compensating impedance curves were compared. Finally, the bolt loosening experiment was performed on one bolted beam of the specimen at different temperatures. The results show that, combined with the temperature compensation of the real part curve of the impedance, the bolt loosening can be clearly distinguished from the healthy condition. This monitoring device and temperature compensation method are expected to be applied on the CubeSat.

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