title: A novel fully implantable wireless sensor system for monitoring hypertension patients.
abstract: This paper presents a novel fully implantable wireless sensor system intended for long-term monitoring of hypertension patients, designed for implantation into the femoral artery with computed tomography angiography. It consists of a pressure sensor and a telemetric unit, which is wirelessly connected to an extracorporeal readout station for energy supply and data recording. The system measures intraarterial pressure at a sampling rate of 30 Hz and an accuracy of ±1.0 mmHg over a range of 30-300 mmHg, while consuming up to 300 μW. A special peel-away sheath introducer set was developed to support the implantation procedure. The system delivered stable measurements in initial animal trials in sheep, with results being in good agreement with reference sensor systems.
authors.affiliation: Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany. cleven@hia.rwth-aachen.de
authors.forename: Nina J
authors.initials: NJ
authors.lastname: Cleven
authors.forename: Jutta A
authors.initials: JA
authors.lastname: Müntjes
authors.forename: Holger
authors.initials: H
authors.lastname: Fassbender
authors.forename: Ute
authors.initials: U
authors.lastname: Urban
authors.forename: Michael
authors.initials: M
authors.lastname: Görtz
authors.forename: Holger
authors.initials: H
authors.lastname: Vogt
authors.forename: Maik
authors.initials: M
authors.lastname: Gräfe
authors.forename: Thorsten
authors.initials: T
authors.lastname: Göttsche
authors.forename: Tobias
authors.initials: T
authors.lastname: Penzkofer
authors.forename: Thomas
authors.initials: T
authors.lastname: Schmitz-Rode
authors.forename: Wilfried
authors.initials: W
authors.lastname: Mokwa
mesh_terms: D000818:Animals; D018660:Blood Pressure Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D004582:Electronics, Medical; D005263:Femoral Artery / Q000601:surgery; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D008954:Models, Biological; D019736:Prostheses and Implants; D019919:Prosthesis Implantation; D012756:Sheep; D017216:Telemedicine / Q000295:instrumentation* / Q000379:methods; D059015:Wireless Technology / Q000295:instrumentation*