Design and fabrication of a low cost implantable bladder pressure monitor

AbstractIntracranial pressure monitoring has become critical for the adequate management of patients with severe head injury in recent years. Several other recommendations for intracranial pressure monitoring have also been described, specially for patients with subarachnoid hemorrhage with ventricular enlargement, and spontaneous intracerebral hematomas. The immediate postoperative period of elective surgeries that require brain retraction is another instance where intracranial pressure monitoring could provide useful informations to optimize outcome. Expensive methods make it almost prohibitive to smaller centers in our Country.We describe our protocol of routine intracranial pressure monitoring using an intraventricular catheter connected to an external strain gauge transducer adapted to an ordinary invasive pressure monitor, in a countryside university hospital, and analyze the data of intracranial pressure and cerebral perfusion pressure obtained with regards to outcome and also investigate the more common complications of the method.We conclude that intracranial pressure monitoring could be safely applied at a low cost to improve the management of those patients.

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Is compression bandaging accurate? The routine use of interface pressure measurements in compression bandaging of venous leg ulcers

Phlebology The Journal of Venous Disease ◽

10.1258/026835506775971207 ◽

2006 ◽

Vol 21 (1) ◽

pp. 36-40 ◽

Cited By ~ 9

Author(s):

A Satpathy ◽

S Hayes ◽

S Dodds

Keyword(s):

Healthy Volunteers ◽

Control Measure ◽

Low Cost ◽

Pressure Sensors ◽

Medial Malleolus ◽

Care Providers ◽

Interface Pressure ◽

Pressure Monitor ◽

Compression Bandaging ◽

Target Pressure

Objective: To test the use of a low-cost, portable, battery-powered sub-bandage pressure monitor as a part of a quality control measure for graduated compression bandaging in the leg ulcer clinics. Methods: A total of 25 healthy volunteers (mean age 40 years) providing 50 limbs were bandaged with a 4-layer compression bandaging system. Interface pressure was measured by placing pressure sensors on the skin at three points (2 cm above the medial malleolus, on the widest part of the calf and on a point midway between them) in supine and standing positions. A further 16 patients (mean age 62 years) providing 22 limb measurements also participated in this study. Bandages were reapplied in patients with the help of the pressure monitors when the target pressure was not achieved in the first attempt. Results: The interface pressures varied with change of position and movement. With the operator blinded, the target pressure of 35–40 mmHg at the ankle was achieved in only 36% of healthy volunteers (mean±95% confidence interval, 32.3±1.6 mmHg [supine]; 38.4±2.4 mmHg [standing position]). With the help of the pressure monitors, the target pressure was achieved in 78% of the patients. Conclusion: This result suggests that it is important to have a tool that is easy to operate, and available as a part of the quality assurance in connection with treatment and also training of care providers, nurses, etc in how to apply a compression bandage.

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Low-Cost Blood Pressure Monitor Device for Developing Countries

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering - Wireless Mobile Communication and Healthcare ◽

10.1007/978-3-642-29734-2_46 ◽

2012 ◽

pp. 335-342 ◽

Cited By ~ 9

Author(s):

Carlos Arteta ◽

João S. Domingos ◽

Marco A. F. Pimentel ◽

Mauro D. Santos ◽

Corentin Chiffot ◽

...

Keyword(s):

Blood Pressure ◽

Developing Countries ◽

Low Cost ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Monitor Device

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Cystometrogram: the low-cost method for rural areas and its benefits

Tropical Doctor ◽

10.1177/0049475517712658 ◽

2017 ◽

Vol 48 (1) ◽

pp. 80-84

Author(s):

J Gnanaraj

Keyword(s):

Urinary Tract ◽

Lower Urinary Tract Symptoms ◽

Rural Areas ◽

Lower Urinary Tract ◽

Low Cost ◽

Northeast India ◽

Bladder Pressure ◽

Sufficient Information ◽

Urinary Tract Symptoms ◽

Lower Urinary

Cystometrography (CMG) is a means of studying bladder pressure. It is a very useful diagnostic tool in patients with lower urinary tract symptoms for which a simple cystoscopy will not offer sufficient information to form a diagnosis. Of the 8893 patients who underwent screening for urological conditions in rural northeast India during 2010–2014, 280 with lower urinary tract symptoms were investigated with a combination of cystoscopy and CMG. By corresponding CMG diagnosis and treatment, we could examine patients’ overall satisfaction with both the procedure and the treatment. We describe a low-cost method of CMG and our results using this method in rural areas of India.

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Decomposition of the metastable beta titanium alloy Ti-15-3

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100075117 ◽

1983 ◽

Vol 41 ◽

pp. 264-265

Author(s):

Y. L. Chen ◽

S. Fujlshiro

Keyword(s):

Low Cost ◽

High Strength ◽

Alpha Phase ◽

Thick Sheet ◽

Omega Phase ◽

Beta Titanium Alloy ◽

Beta Titanium ◽

Beta Matrix ◽

Metastable Beta ◽

Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

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