ArticlePloS one2019
Wireless intravesical device for real-time bladder pressure measurement: Study of consecutive voiding in awake minipigs.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 23 citations in OpenAlex.
- Implantable bladder sensors for real-time urodynamics: A systematic review of preclinical and clinical evidence in neuro-urology.Current urology · 2026Review
- A surgical and functional approach to the pelvic gross neuroanatomy of the female Yucatan minipig.Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft · 2025Article
- Optimization of activity-driven event detection for long-term ambulatory urodynamics.Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine · 2024Article
- From wires to waves, a novel sensor system for in vivo pressure monitoring.Scientific reports · 2024Article
- Wireless and Catheter-Free Bladder Pressure and Volume Sensor.IEEE sensors journal · 2024Article
- Catheter-Free Urodynamics Testing: Current Insights and Clinical Potential.Research and reports in urology · 2024Review
- Biodegradable ring-shaped implantable device for intravesical therapy of bladder disorders.Biomaterials · 2022Article
- Advances in Assistive Electronic Device Solutions for Urology.Micromachines · 2022Review
- Telmisartan inhibits bladder smooth muscle fibrosis in neurogenic bladder rats.Experimental and therapeutic medicine · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Traditional urodynamics have poor correlation with urological symptoms. Ambulatory urodynamics may improve this correlation but the need for a transurethral catheter and the time-consuming nature of this examination limits its use. Therefore, the objective of this study was to develop a wireless real-time bladder pressure measurement device for repeated and prolonged-term measurement of bladder behavior in awake pigs. The Bladder Pill is an intravesical device with a pressure microsensor and a 3-dimensional inductive coupling coil for energy supply. A corresponding external coil provides wireless power transmission and real-time communication of bladder pressure data. To test the correlation between the pressure data measured by the device and by standard methods, we compared static water column pressures with this device and water-filled urodynamic catheter systems. In vivo assessment of awake voiding by the pill was done by introducing the bladder pill into the bladder of Göttingen minipigs. An air-charged urodynamic catheter was introduced transurethrally as control for pressure measurements. The optimal physical configuration of the pill was investigated to maximize the containment in the bladder. We used two versions of external signal receivers (one waistband and one rectangular frame) to test the optimal external signal capture. Next to that, we performed short-term and medium-term comparative pressure studies. The in vitro static pressure measurement demonstrated a mean difference of less than 1 cm H2O between the methods. The optimal design of the pill for maximal retainment in the bladder proved to be a pigtail configuration. The bending of the device during bladder contractions caused offset of 2.7 +/- 1.4 cm H2O (mean +/- SD) on the pressure measurements. The rectangular frame performed signal capture during 5 consecutive voids with a good correlation of the pressure measurements. The device can be inserted through the urethra and is retrieved using string or endoscopic extraction. In conclusion, wireless long-term measurement of bladder pressure is demonstrated and yields comparable results to current available catheter methods of measurement in a pig model.
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