Non-contact control of medical devices in the operating room offers essential advantages. However, touchless forms of interaction such as gaze, hand and voice gesture control are poorly accepted in practical use in medicine due to insufficient feedback. Current gesture control systems usually output audiovisual feedback about a performed selection of a function. Consequently, audiovisual feedback does not relieve the already heavily loaded audiovisual perception channel of the surgeon. Therefore, the frequent request of surgeons results in a haptic feedback similar to the manipulation via a physical control element, where a direct feedback about the selection of a function is given. In this research project, the advantage of contamination-free manipulation of hand gesture control is combined with tactile feedback based on ultrasonic waves to transfer information by the tactile perception channel.For the study, various 10-point tactile scales were generated, which were examined with regard to their suitability for the transmission of information. The focus of the investigation was the subject‘s recognition of the information contents "increase", "decrease" and the marking of a "middle" or a "preferred scale value". Therefore, a virtual slider with a tactile feedback based on ultrasound waves was implemented. This slider was provided with a discrete tactile feedback in the form of a 10-point tactile scale, which could be perceived by the hand during a sliding movement. For the coding of information, the recognition of differences in the tactile scale was relevant. To identify the differences, the tactile feedback could be modified in terms of feedback intensity and scale spacing. A total of 16 different coding features were tested. 4 coding features for coding an “increase”, 4 coding features for coding a “decrease” and 8 coding features for coding a “middle” or “preferred value”. The tactile feedback was tested on 30 test persons (15 f / 15 m, Ø = 24.33 years, SD = 3.74 years). The experiment consisted of a main and a secondary task. The main task was to perform a precision task on a medical phantom. As a secondary task, the test persons had to perceive the change in the scale and adjust the scale position directly afterwards. The secondary task was performed blindly, without visual or acoustic feedback.The evaluation of the objective data such as task completion or operating time as well as the subjective data such as recognition of the tactile coding feature or mental load show differences between the characteristics of the coding features. With an interference statistical analysis of the results, significant differences between the different characteristics of the coding features concerning the effectiveness, efficiency and user satisfaction are identified. It’s also shown that the most appropriate coding features for marking an “increase”, a “decrease” and a “middle” or a “preferred scale value” based on this study need to be investigated in m
{"title":"Tactile information coding for touchless interaction with medical devices by means of hand gestures in the air","authors":"Peter Schmid, T. Maier","doi":"10.54941/ahfe1003483","DOIUrl":"https://doi.org/10.54941/ahfe1003483","url":null,"abstract":"Non-contact control of medical devices in the operating room offers essential advantages. However, touchless forms of interaction such as gaze, hand and voice gesture control are poorly accepted in practical use in medicine due to insufficient feedback. Current gesture control systems usually output audiovisual feedback about a performed selection of a function. Consequently, audiovisual feedback does not relieve the already heavily loaded audiovisual perception channel of the surgeon. Therefore, the frequent request of surgeons results in a haptic feedback similar to the manipulation via a physical control element, where a direct feedback about the selection of a function is given. In this research project, the advantage of contamination-free manipulation of hand gesture control is combined with tactile feedback based on ultrasonic waves to transfer information by the tactile perception channel.For the study, various 10-point tactile scales were generated, which were examined with regard to their suitability for the transmission of information. The focus of the investigation was the subject‘s recognition of the information contents \"increase\", \"decrease\" and the marking of a \"middle\" or a \"preferred scale value\". Therefore, a virtual slider with a tactile feedback based on ultrasound waves was implemented. This slider was provided with a discrete tactile feedback in the form of a 10-point tactile scale, which could be perceived by the hand during a sliding movement. For the coding of information, the recognition of differences in the tactile scale was relevant. To identify the differences, the tactile feedback could be modified in terms of feedback intensity and scale spacing. A total of 16 different coding features were tested. 4 coding features for coding an “increase”, 4 coding features for coding a “decrease” and 8 coding features for coding a “middle” or “preferred value”. The tactile feedback was tested on 30 test persons (15 f / 15 m, Ø = 24.33 years, SD = 3.74 years). The experiment consisted of a main and a secondary task. The main task was to perform a precision task on a medical phantom. As a secondary task, the test persons had to perceive the change in the scale and adjust the scale position directly afterwards. The secondary task was performed blindly, without visual or acoustic feedback.The evaluation of the objective data such as task completion or operating time as well as the subjective data such as recognition of the tactile coding feature or mental load show differences between the characteristics of the coding features. With an interference statistical analysis of the results, significant differences between the different characteristics of the coding features concerning the effectiveness, efficiency and user satisfaction are identified. It’s also shown that the most appropriate coding features for marking an “increase”, a “decrease” and a “middle” or a “preferred scale value” based on this study need to be investigated in m","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126684887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pak Yiu Liu, J. Yip, Brian Chen, Lifang He, J. Cheung, Kit Lun Yick, Sun Pui Ng
Adolescent idiopathic scoliosis (AIS) is the complex three-dimensional deformity of the spine. AIS is commonly accompanied by postural alterations and imbalance problems. Adolescents with a spinal curvature between 6-20 degrees are defined as being in the early stages of scoliosis. Generally, bracing treatment with a hard brace is only recommended for adolescents with a spinal curvature between 21-40 degrees, while observation with periodical re-examination of the spine is suggested for cases of early scoliosis. Nevertheless, more treatment options could be provided to adolescents with early scoliosis as opposed to only observation. Therefore, a posture correction girdle has been developed with the aim to reduce posture imbalance problems and the possibility of spinal curve progression. In this study, the immediate effects of the posture correction girdle on four adolescents with early scoliosis are reported. Each subject undergoes a 2-hour trial of the girdle. Data collection is carried out before and after the trial by using radiographic imaging and three-dimensional body scanning. To evaluate the immediate effects of the posture correction girdle, comparisons are made pre and post results. Apart from the radiographic analysis, the changes of the postural angles in the frontal, horizontal, and sagittal planes during standing are also considered. The evaluation results show that the girdle has positive effects on the subjects. Two of them show a significant reduction in their spinal curve, while all of them reduce their postural imbalance during the time that the posture correction girdle is worn.
{"title":"Immediate Effects of Posture Correction Girdle on Adolescents with Early Scoliosis","authors":"Pak Yiu Liu, J. Yip, Brian Chen, Lifang He, J. Cheung, Kit Lun Yick, Sun Pui Ng","doi":"10.54941/ahfe1002104","DOIUrl":"https://doi.org/10.54941/ahfe1002104","url":null,"abstract":"Adolescent idiopathic scoliosis (AIS) is the complex three-dimensional deformity of the spine. AIS is commonly accompanied by postural alterations and imbalance problems. Adolescents with a spinal curvature between 6-20 degrees are defined as being in the early stages of scoliosis. Generally, bracing treatment with a hard brace is only recommended for adolescents with a spinal curvature between 21-40 degrees, while observation with periodical re-examination of the spine is suggested for cases of early scoliosis. Nevertheless, more treatment options could be provided to adolescents with early scoliosis as opposed to only observation. Therefore, a posture correction girdle has been developed with the aim to reduce posture imbalance problems and the possibility of spinal curve progression. In this study, the immediate effects of the posture correction girdle on four adolescents with early scoliosis are reported. Each subject undergoes a 2-hour trial of the girdle. Data collection is carried out before and after the trial by using radiographic imaging and three-dimensional body scanning. To evaluate the immediate effects of the posture correction girdle, comparisons are made pre and post results. Apart from the radiographic analysis, the changes of the postural angles in the frontal, horizontal, and sagittal planes during standing are also considered. The evaluation results show that the girdle has positive effects on the subjects. Two of them show a significant reduction in their spinal curve, while all of them reduce their postural imbalance during the time that the posture correction girdle is worn.","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122607715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Nemeth, A. Amos-Binks, G. Rule, Dawn Laufersweiler, Natalie Keeney, Yuliya Pinevich, V. Herasevich
Tactical combat casualty care (TCCC) involves care for casualties in armed conflict from one’s own service (e.g., U.S. Marine Corps), other services (i.e., U.S. Army, Air Force,), allied forces, adversaries, and civilians. To minimize injury and preserve life, medics perform TCCC which includes casualty retrieval, stabilization and documentation, transport, triage, and treatment. In future scenarios, delays in evacuation are expected to require extended care including prolonged field care (PFC) over hours to days, increasing the potential for complications such as bloodstream infection (sepsis). Most medics have only simple equipment and essential medications and will need assistance at point of care to make decisions on how to treat more complex cases and perform procedures in an austere setting.We describe a project for the Defense Health Agency (DHA) over 3 years to develop and evaluate the Trauma Triage Treatment and Training Decision Support (4TDS), a real-time decision support system (DSS) to monitor casualty health. The operating 4TDS prototype uses the Samsung smart phone and tablet certified for use in the Department of Defense (DoD) Nett Warrior program. Connection to a simple VitalTag (Pacific Northwest National Laboratory, Richland, WA) vital signs monitor placed on a casualty at point of injury (PoI) will stream patient data including heart rate, respiration rate, peripheral oxygen saturation (SpO2), and diastolic and systolic blood pressure. Nurses, technicians, and physicians can use the tablet to display an expanded data set including lab values while providing care at a Battalion Aid Station (BAS) and Field Hospital (FH).4TDS includes a Machine Learning (ML) model to indicate shock probability, risk of internal hemorrhage, and probability of the need for a massive transfusion. The shock model was trained on Mayo Clinic Intensive Care Unit (ICU) patient data, then evaluated in a 6-month “silent test” comparing shock prediction with actual clinician diagnoses. The model only uses 6 vital signs, which is suited to battlefield care, while other published results include lab tests (e.g., lactate), and produces a Receiver Operator Characteristic Curve (ROC) of 0.83 for shock detection. The model only decreases by 0.05 90 minutes, identifying shock probability well before its onset. Medic reviews indicate a 30-minute advanced warning would be more than sufficient to initiate treatment.Medics who provide PFC may need to perform life-critical procedures such as shock management, cricothyroidotomy intubation, and transfusion that may not have been used for an extended period. 4TDS includes refresher training in how to perform such a procedure, as well as whether to perform the procedure. Usability assessments with healthcare providers from the Army, Navy, and Air Force at Joint Base San Antonio, TX have demonstrated 4TDS and its capabilities align with TCCC practice. This work is supported by the US Army Medical Research and Materiel Comma
{"title":"Real Time Battlefield Casualty Care Decision Support","authors":"C. Nemeth, A. Amos-Binks, G. Rule, Dawn Laufersweiler, Natalie Keeney, Yuliya Pinevich, V. Herasevich","doi":"10.54941/ahfe1002112","DOIUrl":"https://doi.org/10.54941/ahfe1002112","url":null,"abstract":"Tactical combat casualty care (TCCC) involves care for casualties in armed conflict from one’s own service (e.g., U.S. Marine Corps), other services (i.e., U.S. Army, Air Force,), allied forces, adversaries, and civilians. To minimize injury and preserve life, medics perform TCCC which includes casualty retrieval, stabilization and documentation, transport, triage, and treatment. In future scenarios, delays in evacuation are expected to require extended care including prolonged field care (PFC) over hours to days, increasing the potential for complications such as bloodstream infection (sepsis). Most medics have only simple equipment and essential medications and will need assistance at point of care to make decisions on how to treat more complex cases and perform procedures in an austere setting.We describe a project for the Defense Health Agency (DHA) over 3 years to develop and evaluate the Trauma Triage Treatment and Training Decision Support (4TDS), a real-time decision support system (DSS) to monitor casualty health. The operating 4TDS prototype uses the Samsung smart phone and tablet certified for use in the Department of Defense (DoD) Nett Warrior program. Connection to a simple VitalTag (Pacific Northwest National Laboratory, Richland, WA) vital signs monitor placed on a casualty at point of injury (PoI) will stream patient data including heart rate, respiration rate, peripheral oxygen saturation (SpO2), and diastolic and systolic blood pressure. Nurses, technicians, and physicians can use the tablet to display an expanded data set including lab values while providing care at a Battalion Aid Station (BAS) and Field Hospital (FH).4TDS includes a Machine Learning (ML) model to indicate shock probability, risk of internal hemorrhage, and probability of the need for a massive transfusion. The shock model was trained on Mayo Clinic Intensive Care Unit (ICU) patient data, then evaluated in a 6-month “silent test” comparing shock prediction with actual clinician diagnoses. The model only uses 6 vital signs, which is suited to battlefield care, while other published results include lab tests (e.g., lactate), and produces a Receiver Operator Characteristic Curve (ROC) of 0.83 for shock detection. The model only decreases by 0.05 90 minutes, identifying shock probability well before its onset. Medic reviews indicate a 30-minute advanced warning would be more than sufficient to initiate treatment.Medics who provide PFC may need to perform life-critical procedures such as shock management, cricothyroidotomy intubation, and transfusion that may not have been used for an extended period. 4TDS includes refresher training in how to perform such a procedure, as well as whether to perform the procedure. Usability assessments with healthcare providers from the Army, Navy, and Air Force at Joint Base San Antonio, TX have demonstrated 4TDS and its capabilities align with TCCC practice. This work is supported by the US Army Medical Research and Materiel Comma","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130499380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Augmented Reality (AR) proposes new ways to visualize and to interact with virtual objects. Depending on the target interaction modality and the application requirements, different type of devices can be chosen. If AR on smartphones can propose a Graphical User Interface without impacting the immersion, AR headset procures a more immersive experience, the interaction modality relying mainly on hand gesture control even if various types of interactions modalities have been explored in literature. One of the most widespread headsets is the Microsoft Hololens which offers a documentation about the set-up of interactions between the users and virtual entities. However, the ergonomic of the proposed hand gesture needs to be learnt and is not intuitive for most people and cannot be well fitted depending on the type of application.The goal of this paper is to test, in a medical application perspective, the ergonomic of different types of human machine interface in AR, the impact of changes made by the return of the users and the usability of the final human machine interface. An application dedicated to the accuracy test of the headset has been made. This application has been tested by different users who never had any previous experience with AR headset before. The virtual object used inside this application is a simple cube to simplify the interaction with the virtual entity as much as possible. After that, a users’ return of experience protocol has been propose. It has been used to feed proposals for changing interaction modalities in the application. This return of experience is based on the estimation of the ease to place the virtual entity relatively to elements of the real world, the estimation of the ease to orientate the entity and the estimation of quality of the visualization. At the end of the protocol, the final human machine interface is tested, and a comparison is made between the different types of interaction modalities proposed.Among the proposed solutions, the one without any graphical user interface artifacts (i.e. using only hand tracking to interact with the cube) results in bad comprehension and manipulation that can lead to prevent the use of this application. One explanation can be tied to the lack of precise hand tracking which can result in bad hand pose. The second solution, based on the addition of a 3D plane GUI, demonstrates a more precise appropriation of the AR context. However, the GUI plane must be positioned manually by the user to have better result. Besides, results shows that the cube must be rendered with boxes to delimit the edge and thus helping the user to make the cube closer to his/her perception expectations.These experiments showed that the use of world anchored graphical user interface for high accuracy application is needed to provide a better understanding for newcomers and can be considered as an intuitive way to use the application. If for most entertainment applications the hand interaction can be suf
{"title":"Augmented Reality Application for HoloLens Dedicated to the Accuracy Test: Evolution and Results","authors":"Julien Barbier, Franck Gechter, Sylvain Grosdemouge","doi":"10.54941/ahfe1002097","DOIUrl":"https://doi.org/10.54941/ahfe1002097","url":null,"abstract":"Augmented Reality (AR) proposes new ways to visualize and to interact with virtual objects. Depending on the target interaction modality and the application requirements, different type of devices can be chosen. If AR on smartphones can propose a Graphical User Interface without impacting the immersion, AR headset procures a more immersive experience, the interaction modality relying mainly on hand gesture control even if various types of interactions modalities have been explored in literature. One of the most widespread headsets is the Microsoft Hololens which offers a documentation about the set-up of interactions between the users and virtual entities. However, the ergonomic of the proposed hand gesture needs to be learnt and is not intuitive for most people and cannot be well fitted depending on the type of application.The goal of this paper is to test, in a medical application perspective, the ergonomic of different types of human machine interface in AR, the impact of changes made by the return of the users and the usability of the final human machine interface. An application dedicated to the accuracy test of the headset has been made. This application has been tested by different users who never had any previous experience with AR headset before. The virtual object used inside this application is a simple cube to simplify the interaction with the virtual entity as much as possible. After that, a users’ return of experience protocol has been propose. It has been used to feed proposals for changing interaction modalities in the application. This return of experience is based on the estimation of the ease to place the virtual entity relatively to elements of the real world, the estimation of the ease to orientate the entity and the estimation of quality of the visualization. At the end of the protocol, the final human machine interface is tested, and a comparison is made between the different types of interaction modalities proposed.Among the proposed solutions, the one without any graphical user interface artifacts (i.e. using only hand tracking to interact with the cube) results in bad comprehension and manipulation that can lead to prevent the use of this application. One explanation can be tied to the lack of precise hand tracking which can result in bad hand pose. The second solution, based on the addition of a 3D plane GUI, demonstrates a more precise appropriation of the AR context. However, the GUI plane must be positioned manually by the user to have better result. Besides, results shows that the cube must be rendered with boxes to delimit the edge and thus helping the user to make the cube closer to his/her perception expectations.These experiments showed that the use of world anchored graphical user interface for high accuracy application is needed to provide a better understanding for newcomers and can be considered as an intuitive way to use the application. If for most entertainment applications the hand interaction can be suf","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122314329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bahar Khayamian Esfahani, Daniel Ganji, Emily Louise Mann, Jelena Milisavljevic Syed
A growing ageing population and the rise in the number of people living with long-term conditions lead to increasing demand for resources to support healthcare in a pandemic impacted world. Medication self-management or adherence remains a major challenge that creates additional pressure on the global healthcare system. Poor medication management puts the patients at risk of poor health outcomes, increased mortality and burden on the National Health Service (NHS) in the United Kingdom. In this paper, the authors provide an overview of medication adherence and discuss its underlying challenges and emerging opportunities in the smart packaging sector. This includes exploring the relevant challenges for older people’s medication self-management through interviews with medical experts. Finally, conclusions and an outlook are presented towards future opportunities for personalized product-service systems of the future.
{"title":"Ageing and medication adherence: An overview of key challenges, technologies, and opportunities","authors":"Bahar Khayamian Esfahani, Daniel Ganji, Emily Louise Mann, Jelena Milisavljevic Syed","doi":"10.54941/ahfe1002118","DOIUrl":"https://doi.org/10.54941/ahfe1002118","url":null,"abstract":"A growing ageing population and the rise in the number of people living with long-term conditions lead to increasing demand for resources to support healthcare in a pandemic impacted world. Medication self-management or adherence remains a major challenge that creates additional pressure on the global healthcare system. Poor medication management puts the patients at risk of poor health outcomes, increased mortality and burden on the National Health Service (NHS) in the United Kingdom. In this paper, the authors provide an overview of medication adherence and discuss its underlying challenges and emerging opportunities in the smart packaging sector. This includes exploring the relevant challenges for older people’s medication self-management through interviews with medical experts. Finally, conclusions and an outlook are presented towards future opportunities for personalized product-service systems of the future.","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133910307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Närväinen, J. Kortelainen, T. Urhemaa, Mikko Saajanlehto, Kari Bäckman, J. Plomp
This paper will discuss the feasibility of a monitoring setup HealthGate, designed to monitor the mobility, vital signs, and weight of an elderly person living in her own apartment. The versatile sensor setup will allow more comprehensive insights than what is currently available. Continuous home monitoring will enable early interventions and actions in e.g. suspected dehydration, mobility problems, and non-optimal or missed medication. The data can be used to form indices of e.g. frailty and sleep quality, to detect changes in health and behavior, and to alert the person, relatives or caregivers of detected and impending problems. Instead of interaction with the user, the setup seeks total unobtrusiveness: invisible or integrated sensors as well as automated measurements and data transmission. This is crucial with persons suffering from severe cognitive impairment: the operation does not rely on user actions and the setup is safe from a curious user. On the other hand, tailored reports can be provided to people who can and want to investigate their own status. The custom-made monitoring system uses three sensor types: a mm-range imaging FMCW radar (1), a seat foil sensor (2), and a novel four-element weight sensor array. The seat and weight sensors are positioned in a favorite armchair and the radar cabinet faces the chair, typically positioned next to the TV. The key events from which the data are recorded are the transitions to and from the chair and the moments sitting still in the in, typically watching TV. The system will monitor heart and breathing rate (both radar and seat foil), weight, and dynamic weight distribution across the sensors under the legs of the chair, as well as movement at and near the chair (radar). Sleep is monitored using a commercial sleep sensor (VTracker 2.0, eLive Ecosystem Ltd., Finland) placed underneath the topping mattress. As the chairs used in individual homes will vary making inter-subject comparisons more difficult, during each home monitoring period, the participants will also perform a guided sitting, standing-up and walking protocol using a similar setup but with a test chair. The 25 participants are residents of a senior community, living independently in their rental apartments but using home care services. The data are collected during a series of two two-week monitoring periods, five participants at a time, starting in November 2022. We will describe the setup and data collection solution as well as show the first multisensor data comparisons and the proposals for characteristic mobility parameters for a sit down - stand up sequence and walk. The quality, reliability and limits of the biosignals and movement parameters derived from the radar data will be discussed. The data will be compared to standard measures of frailty, collected in a controlled test session, consisting of grip force, walking speed, timed sit down – stand up, and agility tests, as well as the frailty index (3) computed from the int
{"title":"HealthGate: unobtrusive home monitoring of vital signs, weight and mobility of the elderly","authors":"J. Närväinen, J. Kortelainen, T. Urhemaa, Mikko Saajanlehto, Kari Bäckman, J. Plomp","doi":"10.54941/ahfe1003472","DOIUrl":"https://doi.org/10.54941/ahfe1003472","url":null,"abstract":"This paper will discuss the feasibility of a monitoring setup HealthGate, designed to monitor the mobility, vital signs, and weight of an elderly person living in her own apartment. The versatile sensor setup will allow more comprehensive insights than what is currently available. Continuous home monitoring will enable early interventions and actions in e.g. suspected dehydration, mobility problems, and non-optimal or missed medication. The data can be used to form indices of e.g. frailty and sleep quality, to detect changes in health and behavior, and to alert the person, relatives or caregivers of detected and impending problems. Instead of interaction with the user, the setup seeks total unobtrusiveness: invisible or integrated sensors as well as automated measurements and data transmission. This is crucial with persons suffering from severe cognitive impairment: the operation does not rely on user actions and the setup is safe from a curious user. On the other hand, tailored reports can be provided to people who can and want to investigate their own status. The custom-made monitoring system uses three sensor types: a mm-range imaging FMCW radar (1), a seat foil sensor (2), and a novel four-element weight sensor array. The seat and weight sensors are positioned in a favorite armchair and the radar cabinet faces the chair, typically positioned next to the TV. The key events from which the data are recorded are the transitions to and from the chair and the moments sitting still in the in, typically watching TV. The system will monitor heart and breathing rate (both radar and seat foil), weight, and dynamic weight distribution across the sensors under the legs of the chair, as well as movement at and near the chair (radar). Sleep is monitored using a commercial sleep sensor (VTracker 2.0, eLive Ecosystem Ltd., Finland) placed underneath the topping mattress. As the chairs used in individual homes will vary making inter-subject comparisons more difficult, during each home monitoring period, the participants will also perform a guided sitting, standing-up and walking protocol using a similar setup but with a test chair. The 25 participants are residents of a senior community, living independently in their rental apartments but using home care services. The data are collected during a series of two two-week monitoring periods, five participants at a time, starting in November 2022. We will describe the setup and data collection solution as well as show the first multisensor data comparisons and the proposals for characteristic mobility parameters for a sit down - stand up sequence and walk. The quality, reliability and limits of the biosignals and movement parameters derived from the radar data will be discussed. The data will be compared to standard measures of frailty, collected in a controlled test session, consisting of grip force, walking speed, timed sit down – stand up, and agility tests, as well as the frailty index (3) computed from the int","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133746234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electronic Product Information (ePI) is a digital alternative to the current paper leaflet found in every medicine package. The paper leaflets are costly to produce and have a high environmental impact. Moreover, once printed and distributed the leaflets are no longer possible to be updated. A blockchain-based technical solution for an ePI is currently being developed under the PharmaLedger Project following the EMA-HMA-EC principles for ePI in the EU. The paper discusses this blockchain-based ePI solution based on a data flow analysis.
{"title":"Electronic Product Information for Human Medicines: A Blockchain Solution","authors":"Galia Kondova","doi":"10.54941/ahfe1002091","DOIUrl":"https://doi.org/10.54941/ahfe1002091","url":null,"abstract":"Electronic Product Information (ePI) is a digital alternative to the current paper leaflet found in every medicine package. The paper leaflets are costly to produce and have a high environmental impact. Moreover, once printed and distributed the leaflets are no longer possible to be updated. A blockchain-based technical solution for an ePI is currently being developed under the PharmaLedger Project following the EMA-HMA-EC principles for ePI in the EU. The paper discusses this blockchain-based ePI solution based on a data flow analysis.","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"443 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116187153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anthony Soung Yee, Carleene Bañez, S. Gelmi, C. Gaulton, Trevor N. T. Hall
As with many aspects of our personal and professional lives, the COVID-19 pandemic has impacted the way that human factors researchers and specialists are able to conduct their work. As an organization providing human factors, patient safety, and risk management support nationally to healthcare institutions, we have had to adapt our established processes to find innovative solutions to continue our research and our work. Namely, we have had to work remotely from our partners and collaborators, which severely restricts opportunities for field work and first-hand observations. Besides the obvious challenges with technology and connectivity issues, we had to be mindful of our stakeholders and participants knowing that ‘Zoom fatigue’ was and continues to impact individuals both mentally and physically. As well, as practitioners we feel restricted in building a rapport with various end users, which is an essential component for understanding the stakeholder needs. In this talk, we present a number of strategies and best practices, including the use of electronic tools and tips for engagement and collaboration during virtual sessions. As well, we highlight the new opportunities that remote work affords the human factors specialist.We present these techniques within the context of patient safety projects conducted over the past year. In 2021, we partnered with a healthcare delivery institution to conduct a virtual Failure Mode and Effects Analysis (FMEA). The FMEA was conducted remotely via Zoom with five two-hour sessions, as physical distancing rules were in effect. In order to balance time commitments and Zoom fatigue, two-hour sessions were found to be sufficient for productive discussions while also respecting stakeholders’ schedules and care responsibilities. Furthermore, we decided on a dedicated facilitator to avoid cognitive overload and to avoid having to time-share between a number of responsibilities at the expense of a productive conversation. In the full talk, we discuss a number of other strategies on using technological aids to facilitate discussion, maintaining an amicable and open work environment, and staying on schedule. As well, we discuss the opportunities afforded by remote work, such as being able to provide support to a large number of organizations across the country without the overhead of travel.We anticipate that hybrid and remote work will continue to be part of the work reality for human factors specialists in healthcare for the foreseeable future. We have adopted these techniques into our standard practice, and believe that human factors practitioners will value hearing details about conducting these sessions in a remote setting. In particular, we provide lessons learned for scheduling and preparing for the sessions, collecting user data using a web-based voting system, and the challenges of logistics of running remote sessions. These will be practical and useful for specialists and researchers planning to conduct remote
{"title":"Effective Remote Human Factors Support During COVID-19: Challenges and Lessons Learned","authors":"Anthony Soung Yee, Carleene Bañez, S. Gelmi, C. Gaulton, Trevor N. T. Hall","doi":"10.54941/ahfe1002116","DOIUrl":"https://doi.org/10.54941/ahfe1002116","url":null,"abstract":"As with many aspects of our personal and professional lives, the COVID-19 pandemic has impacted the way that human factors researchers and specialists are able to conduct their work. As an organization providing human factors, patient safety, and risk management support nationally to healthcare institutions, we have had to adapt our established processes to find innovative solutions to continue our research and our work. Namely, we have had to work remotely from our partners and collaborators, which severely restricts opportunities for field work and first-hand observations. Besides the obvious challenges with technology and connectivity issues, we had to be mindful of our stakeholders and participants knowing that ‘Zoom fatigue’ was and continues to impact individuals both mentally and physically. As well, as practitioners we feel restricted in building a rapport with various end users, which is an essential component for understanding the stakeholder needs. In this talk, we present a number of strategies and best practices, including the use of electronic tools and tips for engagement and collaboration during virtual sessions. As well, we highlight the new opportunities that remote work affords the human factors specialist.We present these techniques within the context of patient safety projects conducted over the past year. In 2021, we partnered with a healthcare delivery institution to conduct a virtual Failure Mode and Effects Analysis (FMEA). The FMEA was conducted remotely via Zoom with five two-hour sessions, as physical distancing rules were in effect. In order to balance time commitments and Zoom fatigue, two-hour sessions were found to be sufficient for productive discussions while also respecting stakeholders’ schedules and care responsibilities. Furthermore, we decided on a dedicated facilitator to avoid cognitive overload and to avoid having to time-share between a number of responsibilities at the expense of a productive conversation. In the full talk, we discuss a number of other strategies on using technological aids to facilitate discussion, maintaining an amicable and open work environment, and staying on schedule. As well, we discuss the opportunities afforded by remote work, such as being able to provide support to a large number of organizations across the country without the overhead of travel.We anticipate that hybrid and remote work will continue to be part of the work reality for human factors specialists in healthcare for the foreseeable future. We have adopted these techniques into our standard practice, and believe that human factors practitioners will value hearing details about conducting these sessions in a remote setting. In particular, we provide lessons learned for scheduling and preparing for the sessions, collecting user data using a web-based voting system, and the challenges of logistics of running remote sessions. These will be practical and useful for specialists and researchers planning to conduct remote ","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127739643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Helen J. A. Fuller, Timothy Arnold, Kyle D. Maddox, Kathleen Adams
Heuristic evaluation (HE) is a popular usability inspection method that allows expert evaluators to document usability problems with the design of interfaces. The relatively low resource requirements and high utility of identifying usability issues and suggesting dimensions along which to correct them have made HE highly scalable. However, there are several limitations and concerns when operationalizing HE for a large enterprise, and education and communication along with combining HE with other usability techniques may greatly increase the utility of the work.
{"title":"Considerations and Strategies for Operationalizing Heuristic Evaluation Work","authors":"Helen J. A. Fuller, Timothy Arnold, Kyle D. Maddox, Kathleen Adams","doi":"10.54941/ahfe1002123","DOIUrl":"https://doi.org/10.54941/ahfe1002123","url":null,"abstract":"Heuristic evaluation (HE) is a popular usability inspection method that allows expert evaluators to document usability problems with the design of interfaces. The relatively low resource requirements and high utility of identifying usability issues and suggesting dimensions along which to correct them have made HE highly scalable. However, there are several limitations and concerns when operationalizing HE for a large enterprise, and education and communication along with combining HE with other usability techniques may greatly increase the utility of the work.","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129680758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adolescent idiopathic scoliosis (AIS) is a common condition that involves the curvature of the lateral spine and rotation of vertebrae often found in adolescents from age 10 to skeletal maturity. There are various kinds of treatments that prevent the natural progression of the spinal curvature, such as bracing and surgery. However, spinal surgery is mainly reserved for patients with severe scoliosis (spinal curvature that exceeds 45 degrees). For those with moderate scoliosis (spinal curvature larger than 21 but less than 40 degrees), bracing treatment is usually recommended as a non-operative treatment. In this study, the anisotropic textile brace (ATB) is designed to help those with moderate AIS to stop any further progression of their curvature. A case study of a female patient with AIS who has participated a 2-hour wear trial with the ATB is reported. The result of her Cobb angle values shown in the in-brace radiograph is compared without wearing a brace so as to evaluate the immediate effects of this treatment with a soft brace. Besides, the in-brace radiograph is also compared with a supine radiograph to determine the effectiveness of the bracing treatment. A positive result is found in that there is an immediate reduction of the spinal curvature.
{"title":"Preliminary wear trial of anisotropic textile brace designed for adolescent idiopathic scoliosis","authors":"Hoi Yan Cheung, J. Yip, Kit Lun Yick, Sun Pui Ng","doi":"10.54941/ahfe1002106","DOIUrl":"https://doi.org/10.54941/ahfe1002106","url":null,"abstract":"Adolescent idiopathic scoliosis (AIS) is a common condition that involves the curvature of the lateral spine and rotation of vertebrae often found in adolescents from age 10 to skeletal maturity. There are various kinds of treatments that prevent the natural progression of the spinal curvature, such as bracing and surgery. However, spinal surgery is mainly reserved for patients with severe scoliosis (spinal curvature that exceeds 45 degrees). For those with moderate scoliosis (spinal curvature larger than 21 but less than 40 degrees), bracing treatment is usually recommended as a non-operative treatment. In this study, the anisotropic textile brace (ATB) is designed to help those with moderate AIS to stop any further progression of their curvature. A case study of a female patient with AIS who has participated a 2-hour wear trial with the ATB is reported. The result of her Cobb angle values shown in the in-brace radiograph is compared without wearing a brace so as to evaluate the immediate effects of this treatment with a soft brace. Besides, the in-brace radiograph is also compared with a supine radiograph to determine the effectiveness of the bracing treatment. A positive result is found in that there is an immediate reduction of the spinal curvature.","PeriodicalId":389399,"journal":{"name":"Healthcare and Medical Devices","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115690947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：