scholarly journals Design of Automated Bed for Prevention of Pressure Ulcer for Patient with Moving Disability

Keyword(s):  
The Body ◽  

In this paper, a design of mattress for patients suffering from pressure ulcer has been proposed. When patients are lying in the bed due to their disability or disorder, the body cells do not function properly and leads to decaying because the body is pressurized and there is no circulation of air. This design helps in lifting the patient body in a periodic manner in order to prevent decay and hence the formation of ulcers is prevented. The most important is that patient does not feel any discomfort in the body when the movement is made. The proposed system helps the patient with moving disability by preventing them from becoming victims of bed sores.

Author(s):  
Wei Carrigan ◽  
Pavan Nuthi ◽  
Charu Pande ◽  
Caleb P. Nothnagle ◽  
Muthu B. J. Wijesundara

Pressure ulcers are a serious reoccurring complication among wheelchair users with impaired mobility and sensation. It is postulated that external mechanical loading, specifically on bony prominences, is a major contributing factor in pressure ulcer formation. Prevention strategies mainly center on reducing the magnitude and duration of external forces acting upon the body. Seat cushion technologies for reducing pressure ulcer prevalence often employ soft materials and customized cushion geometries. Air cell arrays used in time-based pressure modulation techniques are seen as a promising alternative; however, this approach could be further enhanced by adding real-time pressure profile mapping to enable automated pressure modulation customizable for each user’s condition. The work presented here describes the development of a prototype support surface and pressure modulation algorithm which can monitor interface pressure as well as automatically offload and redistribute concentrated pressure. This prototype is comprised of arrays of sensorized polymeric soft air cell actuators which are modulated by a pneumatic controller. Each actuator’s pressure can be changed independently which results in a change to the interface pressure allowing us to offload targeted regions and provide local adjustment for redistribution. The pressure mapping, redistribution, and offloading capabilities of the prototype are demonstrated using pressure modulation algorithms described here.


2019 ◽  
Author(s):  
wondimeneh shibabaw shiferaw ◽  
Yared Asmare Aynalem ◽  
Tadesse Yirga Akalu

Abstract Background Pressure ulcers (PU) affect millions of people worldwide and always occur over bony areas of the body where pressure and tissue distortion is greatest. The national pooled prevalence of pressure ulcer remains unknown. Hence, this meta-analysis aimed to determine the effect of position change on pressure ulcer among hospitalized clients in Ethiopia. Methods Studies were retrieved through search engines in PubMed, Scopus, WHO afro library, Google Scholar, Africa journal online, PsycINFO and web-science following the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P). Analysis was done using STATA version 14 software. Heterogeneity between-study was checked using the I 2 and examined a potential publication bias by visual inspection of the funnel plot and Egger’s regression test statistic. The random-effect model was fitted to estimate the summary effects, odds ratios (ORs), and 95% confidence interval (CIs) across studies. Results Out of the reviewing 401 studies, 7 studies fulfilled the inclusion criteria and were included in the meta-analysis. The estimated pooled prevalence of pressure ulcer in Ethiopia was 11.7% (95% CI (7.28, 16.13%)). Based on the subgroup analysis, the estimated magnitude of pressure ulcer was 15.89% (95% CI: 35.34, 54.04) among studies their sample size were greater than or equals to 250. Those clients who have position change during hospitalization were 82% less likely to develop pressure ulcer [(OR: 0.18 (95% CI (0.07, 0.46)) than their counter part. Conclusion The overall prevalence of pressure ulcer in Ethiopia was relatively high. Position change of the client during hospitalization had paramount benefit to reduce the burden of pressure ulcer. Therefore, policymakers (federal minister of health) could give special attention to minimize the magnitude of pressure ulcer, and to improve the overall quality of healthcare service. Further, meta-analysis study could be conducted to identify individual and health care service related factors to the occurrence of pressure ulcer.


Author(s):  
Matthew R. Henschen ◽  
Adam L. Koesters ◽  
Jonathan Harvey ◽  
Gregory Nemunaitis ◽  
Mehdi Pourazady ◽  
...  

Spinal immobilization is of utmost importance when caring for major trauma victims. Because of the potential for spinal cord injury, trauma victims must be secured to a rigid backboard. Patients are held in position by placing blocks on either side of their head, straps across their forehead, chest, and legs. The goal of using a hard backboard is to reduce the chances of damaging the victim’s neurological functions because of movement of unstable or injured vertebrae. These backboards serve their function of patient immobilization but present another problem for the patient. They have been associated with a skin breakdown condition called decubitus ulcers (bed sores). Bed sores are areas of damaged skin and tissue that develop when sustained pressure causes a restriction of blood circulation to vulnerable parts of the body. Without adequate blood flow, the affected tissue dies. Some patients may be secured to these boards for up to four hours waiting to undergo x-rays. This is more than enough time for ulcers to reach Stage IV which is the deepest and most destructive ulcer. The incidence of pressure ulcers in newly admitted patients has been reported as high as 59% and 50% have been reported at the sacral region [1, 2]. In experimental studies performed on dogs it has been shown that a constant pressure of only 60mmHg for one hour is enough to cause irreversible tissue damage [3]. When the patients are on the backboards it has been shown that there is often a high pressure spike at the sacral prominence where average maximum interface pressure spike of 260mmHg have been noted. When a thin but very heavy gel pad was added to the backboard, the sacral interface pressure was reduced to an average maximum pressure of 188 mmHg [4]. The objective of this project is to develop a backboard with a light pressure dispersion liner to reduce interface pressures on pressure sensitive areas in the supine position.


2022 ◽  
Author(s):  
GISELE SANTANA PEREIRA CARREIRO ◽  
ANA ELZA OLIVEIRA DE MENDONÇA ◽  
MARIA JÚLIA OLIVEIRA GUIMARÃES SOARES

O DESENVOLVIMENTO DE UMA LESÃO POR PRESSÃO É CONSIDERADO UM EVENTO ADVERSO QUE PROLONGA A RECUPERAÇÃO DO PACIENTE. A IDADE AVANÇADA CONSTITUI UM DOS FATORES DE RISCO INTRÍNSECOS AO SURGIMENTO DAS LP, ALÉM DA IMOBILIDADE, ALTERAÇÕES NA PERCEPÇÃO SENSORIAL E ESTADO NUTRICIONAL. ESTE ESTUDO TRATA-SE DE UMA REVISÃO INTEGRATIVA DA LITERATURA COM OBJETIVO DE REALIZAR UM LEVANTAMENTO SOBRE AS LACUNAS DO CONHECIMENTO DOS ENFERMEIROS RELACIONADAS A LP. FORAM SELECIONADOS 20 ARTIGOS NAS BASES DE DADOS BDENF, LILACS, MEDLINE, SCOPUS, GOOGLE SCHOLAR E WEB OF SCIENCE, UTILIZANDO A ESTRATÉGIA DE BUSCA EM PORTUGUÊS: (“LESÃO POR PRESSÃO” OR “ÚLCERA POR PRESSÃO” OR “ÚLCERA DE DECÚBITO” OR “ESCARA DE DECÚBITO”) AND ENFERMAGEM AND CONHECIMENTO, E, EM INGLÊS, (“PRESSURE ULCER” OR “BED SORE” OR “BED SORES” OR BEDSORE OR BEDSORES) AND NURSING AND KNOWLEDGE. VERIFICOU-SE QUE AS CLASSIFICAÇÕES DOS ESTÁGIOS 2 E 3 FORAM AS QUE APRESENTARAM MENOR NÚMERO DE ACERTOS NOS ESTUDOS. EVIDENCIOU-SE DEFICIÊNCIA DE CONHECIMENTO SOBRE DEFINIÇÃO DE CISALHAMENTO E A REDUÇÃO DE OFERTA DE OXIGÊNIO COMO FATOR DE RISCO PARA LP. AS MEDIDAS PREVENTIVAS QUE APRESENTARAM MAIOR FRAGILIDADE DO CONHECIMENTO REFEREM-SE AO ÂNGULO DA CABECEIRA DO LEITO E FREQUÊNCIA DE REPOSICIONAMENTO DE PACIENTES EM POSIÇÃO SENTADA. A IDENTIFICAÇÃO DAS LACUNAS DE CONHECIMENTO É UMA FERRAMENTA ESSENCIAL PARA O PLANEJAMENTO INSTITUCIONAL E MELHORIA NA QUALIDADE DA ASSISTÊNCIA.


2012 ◽  
Vol 512-515 ◽  
pp. 1656-1659
Author(s):  
Se Kou Singare ◽  
Shou Yan Zhong

custom contoured cushion, pressure ulcer prevention, pressure distribution, CAD/CAM Abstract. In the rehabilitation engineering area, the pressure ulcer prevention is an important and healthy problem, especially for people with the spinal cord injured (SCI). This paper aim to develop a computer aided design and computer aided manufacture (CAD/CAM) method to manufacture custom cushions to prevent pressure ulcer. A pressure sensor mat is placed between the body and flat polyurethane (PU) foam to measure the pressure distribution at the buttock-cushion interface. Based on the load-deformation characteristics of the foam material, this pressure distribution is converted into the corresponding deformation contour of the foam. Finally, the deformation data was processed and edited using Rhino 3D surface modelling software to create the CAD model of the custom contoured cushion. Then, the CAD data are transferred into CNC milling machine to manufacture the custom contoured cushion.


Author(s):  
Bolu Kishan Kumar ◽  

Background and Objective: Pressure ulcers regarded as preventable but occur in approximately 5% of all hospitalized patients (range of 3% to 12 % in published literature). It is more common in paraplegic patients. Only after the complete debridement of slough in grade 3 and grade 4 pressure sores the healing progresses and the infection can be controlled. A chemical solution of 5%Tankana in Gomutra Arka was reviewed in the management of a case of pressure ulcer. Presentation of Case: A 26 year old male hemiplegic patient presented with a wound in the sacral region which was diagnosed as a Grade 4 pressure ulcer measuring 12x13 cm. Manual Debridement of ulcer was associated with bleeding. Methodology: There after the solution of 5% Tankana in Gomutra Arka was applied upon the wound by soaking a gauge with the above solution. A regular passive movement of the lower part of the body was done to prevent further development of new Ulcer. Result: After 3 days of dressing 90 % or slough was reduced, discharge from the ulcer reduced and progression of infection had stopped. Discussion: Pressure ulcers impose an economic burden on the patient and common problem amongst bed ridden patients. Grade 4 pressure ulcers have a poor prognosis. Manual slough removal is usually associated with bleeding. Chemical debridement not only helps us in avoiding instances of bleeding but also is more effective in its reach and action. Conclusion: In this case 5% Tankana bhasma in Gomutra Arka was found to be very effective in slough removal which in turn reduced the total duration of management. Use of Chemical debriding agents in a grade 4 ulcer had hastened the process of slough removal and improves the overall rate of recovery. Mixture of Tankana and Gomutra Arka seemed to complement each other’s action on Vrana Shodhana.


Author(s):  
wondimeneh Shibabaw ◽  
Yared Asmare Aynalem ◽  
Tadesse Yirga

Background: Pressure ulcers (PU) affect millions of people worldwide and always occur over bony areas of the body where pressure and tissue distortion is greatest. The national pooled prevalence of pressure ulcer remains unknown. Hence, the aim of this meta-analysis was to determine the effect of position change on pressure ulcer among hospitalized clients in Ethiopia. Methods: Studies were retrieved through search engines in PubMed, Scopus, WHO afro library, Google Scholar, Africa journal online, PsycINFO and web-science following the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P). Analysis was done using STATA version 14 software. We checked the between-study heterogeneity using the I2 and examined a potential publication bias by visual inspection of the funnel plot and Egger’s regression test statistic. The random-effect model was fitted to estimate the summary effects, odds ratios (ORs), and 95% confidence interval (CIs) across studies. Results: Out of the reviewing 401 studies, 7 studies fulfilled the inclusion criteria and were included in the meta-analysis. The estimated pooled prevalence of pressure ulcer in Ethiopia was 11.7% (95% CI (7.28, 16.13%)). Based on the subgroup analysis, the estimated magnitude of pressure ulcer was 15.89% (95% CI: 35.34, 54.04) among studies their sample size were greater than or equals to 250. Those clients who have position change during hospitalization were 85% less likely to develop pressure ulcer [(OR 0.15, 95%CI (0.06, 0.4)] than their counter part. Conclusion: The overall prevalence of pressure ulcer in Ethiopia was relatively high. Position change of the client during hospitalization had paramount benefit to reduce the burden of pressure ulcer. Therefore, policymakers could give special attention to minimize the magnitude of pressure ulcer in order to improve the overall quality of healthcare service. Further meta-analysis study is need to identify individual and health care service related factors to the occurrence of pressure ulcer.


2020 ◽  
Author(s):  
XIAOPING YU ◽  
ZHENG GUO ◽  
JUN LIU ◽  
JIAN WU ◽  
JUNLI ZHOU

Abstract BackgroundToexploretheclinicaldiagnosisandtreatmentoffatalnecrotizingfasciitis.MethodsRetrospective analysis of simple data from January 1, 2014 to November 1, 2019, on the clinical data of the Department of Burns, Gansu Provincial People's Hospital, and the diagnosis and treatment methods were discussed.ResultsThe usual causes of necrosis and fasciitis are as follows. 1. Small trauma such as mosquito bites, pressure sores, and local trauma; 2. Patients suffering from minor trauma did not receive regular treatment in time, and only went to the hospital when local redness, pain, and dysfunction occurred, and were misdiagnosed as cellulitis;3. When a paraplegic patient has a Sacrococcygeal pressure ulcer and has whole-body fever or low-grade fever, and there is inflammation around the pressure ulcer, and redness and swelling spread to one lower limb or both lower limbs, necrotizing fasciitis should be highly suspected; 4. Patients’ wounds cannot be debrided in a timely and effective manner. Generally, inexperienced doctors have incomplete incision and drainage, which causes necrosis to continue to spread along the fascia to the distal limbs.Conclusion1. The diagnosis of necrotizing fasciitis mainly depends on clinical manifestations, and early diagnosis is the key; 2. When the patient has local trauma with local inflammation, and fever or hypothermia throughout the body, necrotizing fasciitis should be highly suspected, and the differential diagnosis should be made with cellulitis. When it is difficult to distinguish, a diagnostic surgical incision can be performed; 3. The operation should be thorough, fully cut and drained to avoid necrosis spreading to the distal limbs along the fascial space; 4. Necrotizing fasciitis should be systemic comprehensive treatment, rational use of antibiotics, correction of water and electrolyte disorders, early active and thorough debridement, and effective sealing of the wound.


Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3862 ◽  
Author(s):  
Kang-Ho Lee ◽  
Yeong-Eun Kwon ◽  
Hyukjin Lee ◽  
Yongkoo Lee ◽  
Joonho Seo ◽  
...  

A body pressure relief system was newly developed with optical pressure sensors for pressure ulcer prevention. Unlike a conventional alternating pressure air mattress (APAM), this system automatically regulates air flow into a body supporting mattress with adaptive inflation (or deflation) duration in response to the pressure level in order to reduce skin stress due to prolonged high pressures. The system continuously quantifies the body pressure distribution using time-of-flight (ToF) optical sensors. The proposed pressure sensor, a ToF optical sensor in the air-filled cell, measures changes in surface height of mattress when pressed under body weight, thereby indirectly indicating the interface pressure. Non-contact measurement of optical sensor usually improves the durability and repeatability of the system. The pressure sensor was successfully identified the 4 different-predefined postures, and quantitatively measured the body pressure distribution of them. Duty cycle of switches in solenoid valves was adjusted to 0–50% for pressure relief, which shows that the interface pressure was lower than 32 mmHg for pressure ulcer prevention.


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