Wireless and inductively powered implant for measuring electrocardiogram.

Abstract:

:The development of an active implantable device for measuring electrocardiogram (ECG) is presented. The study is a part of a project which aims at developing implantable ECG instrumentation with wireless data and power transfer ( http://www.ele.tut.fi/tule ). The developed implant presented here has all the measurement electronics as well as power and data communication instrumentation included. The implant itself contains no battery, while power for the implant is transferred electromagnetically from an external reader device. The results of testing the implant attached on the body surface and in vitro in a water container are also presented. The developed system was also successfully tested in in vivo measurements, which were conducted on four cows with an implantation time of 24 h. The in vivo testing of implant in cows was conducted by a veterinarian in supervised conditions under approved animal experiment licence.

journal_name

Med Biol Eng Comput

authors

Riistama J,Väisänen J,Heinisuo S,Harjunpää H,Arra S,Kokko K,Mäntylä M,Kaihilahti J,Heino P,Kellomäki M,Vainio O,Vanhala J,Lekkala J,Hyttinen J

doi

10.1007/s11517-007-0264-0

subject

Has Abstract

pub_date

2007-12-01 00:00:00

pages

1163-74

issue

12

eissn

0140-0118

issn

1741-0444

journal_volume

45

pub_type

杂志文章,评审
  • Fast GPU-based computation of spatial multigrid multiframe LMEM for PET.

    abstract::Significant efforts were invested during the last decade to accelerate PET list-mode reconstructions, notably with GPU devices. However, the computation time per event is still relatively long, and the list-mode efficiency on the GPU is well below the histogram-mode efficiency. Since list-mode data are not arranged in...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-015-1284-9

    authors: Nassiri MA,Carrier JF,Després P

    更新日期:2015-09-01 00:00:00

  • Estimating germinability of Plasmopara viticola oospores by means of neural networks.

    abstract::Neural networks are trained to estimate the germination percentages of Plasmopara viticola oospores, overwintered in natural conditions in two viticultural areas in northern Italy, by using climatic (temperature and rainfall) data, as well as the previous germination measurement, as input variables. The 288 available ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02344698

    authors: Vercesi A,Sirtori C,Vavassori A,Setti E,Liberati D

    更新日期:2000-01-01 00:00:00

  • Noninvasive measurement of blood glucose concentrations by analysing Fourier transform infra-red absorbance spectra through oral mucosa.

    abstract::Whether Fourier transform infra-red spectroscopy with an attenuated total reflection prism could be applied for noninvasive glucose measurement through oral mucosa was evaluated. As a result, the same absorbance peak at 1033 cm-1 as in glucose aqueous solution was found in the absorbance spectra through mucous membran...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02446645

    authors: Kajiwara K,Uemura T,Kishikawa H,Nishida K,Hashiguchi Y,Uehara M,Sakakida M,Ichinose K,Shichiri M

    更新日期:1993-07-01 00:00:00

  • Structuring of service centres for economic and equipment efficiency.

    abstract::Increasing costs in healthcare have stimulated discussions on whether installation of competent in-house service groups for equipment management could eventually aid in reducing expenditure. In the Federal Republic of Germany, a four-year programme was initiated in 1979 with the purpose of investigating the feasibilit...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02442172

    authors: Irnich W

    更新日期:1989-01-01 00:00:00

  • Automatic selection and feature extraction of motor-evoked potentials by transcranial magnetic stimulation in stroke patients.

    abstract::Transcranial magnetic stimulation (TMS) allows the assessment of stroke patients' cortical excitability and corticospinal tract integrity, which provide information regarding motor function recovery. However, the extraction of features from motor-evoked potentials (MEP) elicited by TMS, such as amplitude and latency, ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-021-02315-z

    authors: Tecuapetla-Trejo JE,Cantillo-Negrete J,Carrillo-Mora P,Valdés-Cristerna R,Ortega-Robles E,Arias-Carrion O,Carino-Escobar RI

    更新日期:2021-01-26 00:00:00

  • Model for the assessment of heart period and arterial pressure variability interactions and of respiration influences.

    abstract::A model which assesses the closed-loop interaction between heart period (HP) and arterial pressure (AP) variabilities and the influence of respiration on both is applied to evaluate the sources of low frequency (LF approximately 0.1 Hz) and high frequency (HF, respiratory rate approximately 0.25 Hz) in conscious dogs ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02518911

    authors: Baselli G,Cerutti S,Badilini F,Biancardi L,Porta A,Pagani M,Lombardi F,Rimoldi O,Furlan R,Malliani A

    更新日期:1994-03-01 00:00:00

  • Numerical simulation of instantaneous backflow through central clearance of bileaflet mechanical heart valves at closure: shear stress and pressure fields within clearance.

    abstract::Instantaneous backflow through central clearance of bileaflet heart valves at the instant of closure is investigated. An Edwards-Duromedics valve in the mitral position is employed to measure the transient pressures near the entrance and exit region in an in vitro flow chamber. A region surrounding the clearance is mo...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02510497

    authors: Lee CS,Chandran KB

    更新日期:1995-05-01 00:00:00

  • Analysis and decomposition of signals obtained by thigh-fixed uni-axial accelerometry during normal walking.

    abstract::The use of piezo-resistive uni-axial accelerometer signals in gait analysis is complicated by the fact that the measured signal is composed of different types of acceleration. The aim of the study is to obtain insight into the signal from a tangential accelerometer attached to the thigh during walking. Six subjects wa...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02344868

    authors: Bussmann JB,Damen L,Stam HJ

    更新日期:2000-11-01 00:00:00

  • Real-time human motion estimation using biomechanical models and non-linear state-space filters.

    abstract::In the field of sports biomechanics and rehabilitation engineering, the possibility of computing, in real time, the angular displacements and derivatives of human joints, from a video of motion sequences, represents an appealing goal. In particular, applications of biofeedback protocols in rehabilitation can benefit f...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02344878

    authors: Cerveri P,Rabuffetti M,Pedotti A,Ferrigno G

    更新日期:2003-03-01 00:00:00

  • Modelling the dynamics of expiratory airflow to describe chronic obstructive pulmonary disease.

    abstract::Chronic obstructive pulmonary disease (COPD) is characterized by expiratory airflow limitation, but current diagnostic criteria only consider flow till the first second and are therefore strongly debated. We aimed to develop a data-based individualized model for flow decline and to explore the relationship between mod...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-014-1202-6

    authors: Topalovic M,Exadaktylos V,Decramer M,Troosters T,Berckmans D,Janssens W

    更新日期:2014-12-01 00:00:00

  • Automatic lesion segmentation and classification of hepatic echinococcosis using a multiscale-feature convolutional neural network.

    abstract::Hepatic echinococcosis (HE) is a life-threatening liver disease caused by parasites that requires a precise diagnosis and proper treatments. To assess HE lesions accurately, we propose a novel automatic HE lesion segmentation and classification network that contains lesion region positioning (LRP) and lesion region se...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-020-02126-8

    authors: Xin S,Shi H,Jide A,Zhu M,Ma C,Liao H

    更新日期:2020-03-01 00:00:00

  • Temperature measurement on tissue surface during laser irradiation.

    abstract::Tissue surface temperature distribution on the treatment site can serve as an indicator for the effectiveness of a photothermal therapy. In this study, both infrared thermography and theoretical simulation were used to determine the surface temperature distribution during laser irradiation of both gel phantom and anim...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-007-0251-5

    authors: Gnyawali SC,Chen Y,Wu F,Bartels KE,Wicksted JP,Liu H,Sen CK,Chen WR

    更新日期:2008-02-01 00:00:00

  • Contractile tension and beating rates of self-exciting monolayers and 3D-tissue constructs of neonatal rat cardiomyocytes.

    abstract::The CellDrum technology (The term 'CellDrum technology' includes a couple of slightly different technological setups for measuring lateral mechanical tension in various types of cell monolayers or 3D-tissue constructs) was designed to quantify the contraction rate and mechanical tension of self-exciting cardiac myocyt...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-009-0552-y

    authors: Linder P,Trzewik J,Rüffer M,Artmann GM,Digel I,Kurz R,Rothermel A,Robitzki A,Temiz Artmann A

    更新日期:2010-01-01 00:00:00

  • Modeling the effect of tilting, passive leg exercise, and functional electrical stimulation on the human cardiovascular system.

    abstract::Long periods of bed rest negatively affect the human body organs, notably the cardiovascular system. To avert these negative effects and promote functional recovery in patients dealing with prolonged bed rest, the goal is to mobilize them as early as possible while controlling and stabilizing their cardiovascular syst...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-017-1628-8

    authors: Sarabadani Tafreshi A,Okle J,Klamroth-Marganska V,Riener R

    更新日期:2017-09-01 00:00:00

  • Silicone rubber encapsulation for an endoscopically implantable gastrostimulator.

    abstract::Gastrointestinal stimulator implants have recently shown positive results in treating obesity. However, the implantation currently requires an invasive surgical procedure. Endoscopy could be used to place the gastric stimulator in the stomach, hence avoiding the riskier surgery. The implant then needs to go through th...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-014-1236-9

    authors: Lonys L,Vanhoestenberghe A,Julémont N,Godet S,Delplancke MP,Mathys P,Nonclercq A

    更新日期:2015-04-01 00:00:00

  • Interface mechanics in external prosthetics: review of interface stress measurement techniques.

    abstract::Instrumentation to measure accurately the stresses at the interface of a residual limb and prosthetic socket has a strong potential for use in prosthetic treatment. As a tool in the clinical setting, the device would allow a clinician to identify sites of excessive loading, information which could then be combined wit...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章,评审

    doi:10.1007/BF02522507

    authors: Sanders JE

    更新日期:1995-07-01 00:00:00

  • Chaotic behavior of the coronary circulation.

    abstract::The regulation of the coronary circulation is a complex paradigm in which many inputs that influence vasomotor tone have to be integrated to provide the coronary vasomotor adjustments to cardiac metabolism and to perfusion pressure. We hypothesized that the integration of many disparate signals that influence membrane...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-008-0329-8

    authors: Trzeciakowski J,Chilian WM

    更新日期:2008-05-01 00:00:00

  • A novel fused convolutional neural network for biomedical image classification.

    abstract::With the advent of biomedical imaging technology, the number of captured and stored biomedical images is rapidly increasing day by day in hospitals, imaging laboratories and biomedical institutions. Therefore, more robust biomedical image analysis technology is needed to meet the requirement of the diagnosis and class...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-018-1819-y

    authors: Pang S,Du A,Orgun MA,Yu Z

    更新日期:2019-01-01 00:00:00

  • Detection of compressed tracheal sound patterns with large amplitude variation during sleep.

    abstract::The objective of the present work was to develop automated methods for the compressed tracheal breathing sound analysis. Overnight tracheal breathing sound was recorded from ten apnoea patients. From each patient, three different types of tracheal sound deflection pattern, each of 10 min duration, were visually scored...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-008-0317-z

    authors: Kulkas A,Rauhala E,Huupponen E,Virkkala J,Tenhunen M,Saastamoinen A,Himanen SL

    更新日期:2008-04-01 00:00:00

  • Multiscale entropy-based approach to automated surface EMG classification of neuromuscular disorders.

    abstract::We introduce a novel method for an automatic classification of subjects to those with or without neuromuscular disorders. This method is based on multiscale entropy of recorded surface electromyograms (sEMGs) and support vector classification. The method was evaluated on a single-channel experimental sEMGs recorded fr...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-010-0629-7

    authors: Istenic R,Kaplanis PA,Pattichis CS,Zazula D

    更新日期:2010-08-01 00:00:00

  • Backflow length predictions during flow-controlled infusions using a nonlinear biphasic finite element model.

    abstract::A previously proposed finite element model that considers geometric and material nonlinearities and the free boundary problems that occur at the catheter tip and in the annular zone around the lateral surface of the catheter was revised and was used to fit a power-law formula to predict backflow length during infusion...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-014-1187-1

    authors: Orozco GA,Smith JH,García JJ

    更新日期:2014-10-01 00:00:00

  • Contact mechanics of a thin-walled capsule adhered onto a rigid planar substrate.

    abstract::A thin-walled capsule, modelled as an incompressible liquid droplet contained in a thin flexible membrane, was allowed to adhere onto a rigid substrate. The contact mechanics were formulated, based on linear elasticity, to portray quantitatively the relationships between osmotic inflation, contact area and angle, memb...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02345154

    authors: Wan KT,Liu KK

    更新日期:2001-09-01 00:00:00

  • Motorised resection device for transurethral resection of the prostate: a laboratory evaluation.

    abstract::Transurethral resection of the prostate is the most common method of relieving urinary outflow obstruction secondary to prostatic enlargement. However, this procedure can be responsible for various complications, including irrigant-fluid absorption and blood loss, both of which are strongly dependent on operation dura...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02510962

    authors: Mestas JL,Cathignol D,Chavrier F,Devonec M

    更新日期:1997-11-01 00:00:00

  • Intraoperative acceleration measurements to quantify improvement in tremor during deep brain stimulation surgery.

    abstract::Deep brain stimulation (DBS) surgery is extensively used in the treatment of movement disorders. Nevertheless, methods to evaluate the clinical response during intraoperative stimulation tests to identify the optimal position for the implantation of the chronic DBS lead remain subjective. In this paper, we describe a ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-016-1559-9

    authors: Shah A,Coste J,Lemaire JJ,Taub E,Schüpbach WMM,Pollo C,Schkommodau E,Guzman R,Hemm-Ode S

    更新日期:2017-05-01 00:00:00

  • Biphasic model of the trabecular meshwork in the eye.

    abstract::A biphasic continuum model for the flow of intraocular fluid, the aqueous humour, in the trabecular meshwork is proposed in the paper. The model considers the meshwork as a circular ring with uniform thickness of homogeneous, isotropic, viscoelastic material swollen with continuously percolating aqueous humour. The mo...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02446710

    authors: Tandon PN,Autar R

    更新日期:1991-05-01 00:00:00

  • Combined treatment with parathyroid hormone (1-34) and beta-tricalcium phosphate had an additive effect on local bone formation in a rat defect model.

    abstract::The objective of this study was to evaluate the effect of following combined treatment with parathyroid hormone (1-34) (PTH) and beta-tricalcium phosphate (β-TCP) on local bone formation in a rat 3-mm critical-size defect at distal femur. Twelve weeks after bilateral ovariectomy (OVX) and sham operation (sham), all an...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-015-1402-8

    authors: Tao ZS,Tu KK,Huang ZL,Zhou Q,Sun T,Xu HM,Zhou YL,Lv YX,Cui W,Yang L

    更新日期:2016-09-01 00:00:00

  • Evaluating the relationship of non-phase locked activities in the electroencephalogram during intermittent stimulation: a partial coherence-based approach.

    abstract::Partial coherence estimate between two signals removing the contribution of a periodic, deterministic one is proposed for measuring the coherence between two ongoing eletroencephalografic (EEG) activities collected at distinct cortical regions under sensory stimulation. The estimator expression was derived and shown t...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/s11517-007-0191-0

    authors: Miranda de Sá AM,Infantosi AF

    更新日期:2007-07-01 00:00:00

  • Viscoelastic response of human hair cortex.

    abstract::The present study describes a new methodological approach which allows the separate analysis and quantitative determination of the viscous and elastic components of human hair using a computerised experimental system. In a first series of experiments subsequent to the estimation of the cross-sectional surface area of ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02446198

    authors: Nikiforidis G,Balas C,Tsambaos D

    更新日期:1992-01-01 00:00:00

  • Single motor unit analysis from spatially filtered surface electromyogram signals. Part 2: conduction velocity estimation.

    abstract::The aim of the study was to compare experimentally conduction velocity (CV) estimates obtained with different estimation methods based on surface electromyogram (EMG) signals detected using five spatial filters. The filters investigated were the longitudinal single and double differential, transverse single and double...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02348440

    authors: Schulte E,Farina D,Rau G,Merletti R,Disselhorst-Klug C

    更新日期:2003-05-01 00:00:00

  • Improved performance of intravascular pO2 sensor incorporating poly(MPC-co-BMA) membrane.

    abstract::The first in vivo evaluation of a pO2 sensor constructed with a novel copolymer is described. The performance of the sensor is assessed under dynamic conditions in vitro and in vivo. This sensor is more stable and reliable than the control sensor with a heparin-treated polyethylene membrane. ...

    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章

    doi:10.1007/BF02511245

    authors: Zhang S,Wright G,Kingston MA,Rolfe P

    更新日期:1996-07-01 00:00:00