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Karl-Johan Fredén Jansson

Postdoc, Electrical engineering

karljohf@chalmers.se +46317721783 Find me

Karl-Johan Fredén Jansson is a postdoc researcher in the Biomedical signals and systems research group.

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Latest publications

2020
Three-Year Follow-Up with the Bone Conduction Implant

Author: Ann Charlotte Persson; Sabine Reinfeldt; Bo Håkansson; Cristina Rigato; Karl-Johan Fredén Jansson; Måns Eeg-Olofsson

Published: 2020

Published in: Audiology and Neuro-Otology

Publication type: Journal article
2019
The bone conduction implant - a review and 1-year follow-up

Author: Bo Håkansson; Sabine Reinfeldt; Ann-Charlotte Persson; Karl-Johan Fredén Jansson; Cristina Rigato; Malou Hultcrantz; Mans Eeg-Olofsson

Published: 2019

Published in: International Journal of Audiology

Publication type: Review article
Effect of transducer attachment on vibration transmission and transcranial attenuation for direct drive bone conduction stimulation

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Erik Renvall; Måns Eeg-Olofsson

Published: 2019

Published in: Hearing research

Publication type: Journal article
Nasal sound pressure as objective verification of implant in active transcutaneous bone conduction devices

Author: Sabine Reinfeldt; Cristina Rigato; Bo Håkansson; Karl-Johan Fredén Jansson; Mans Eeg-Olofsson

Published: 2019

Published in: Medical Devices: Evidence and Research

Publication type: Journal article
Robustness and lifetime of the bone conduction implant - a pilot study

Author: Karl-Johan Fredén Jansson; Bo Håkansson; Cristina Rigato; Mans Eeg-Olofsson; Sabine Reinfeldt

Published: 2019

Published in: Medical Devices: Evidence and Research

Publication type: Journal article
2018
VEMP using a new low-frequency bone conduction transducer

Author: Bo Håkansson; Karl-Johan Fredén Jansson; Tomas Tengstrand; Leif Johannsen; Mans Eeg-Olofsson; Cristina Rigato; Elisabeth Dahlstrom; Sabine Reinfeldt

Published: 2018

Published in: Medical Devices: Evidence and Research

Publication type: Journal article
Direct bone conduction stimulation: Ipsilateral effect of different transducer attachments in active transcutaneous devices

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Erik Renvall; Måns Eeg-Olofsson

Published: 2018

Published in: Hearing Research

Publication type: Journal article
2017
Vibrotactile Thresholds on the Mastoid and Forehead Position of Deaf Patients Using Radioear B71 and B81

Author: Karl-Johan Fredén Jansson; Bo Håkansson; Sabine Reinfeldt; Laura Frohlich; Torsten Rahne

Published: 2017

Published in: Ear and Hearing

Publication type: Journal article
Rehabilitating Patients with Bone Conduction Hearing Devices: Two Effective Alternatives

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Hol Myrthe KS; Måns Eeg-Olofsson

Published: 2017

Published in: Engineering Health

Publication type: Conference poster
Touch and Hearing Mediate Osseoperception

Author: F. Clemente; Bo Håkansson; C. Cipriani; Johan Wessberg; K. Kulbacka-Ortiz; Rickard Brånemark; Karl-Johan Fredén Jansson; Max Jair Ortiz Catalan

Published: 2017

Published in: Scientific Reports

Publication type: Journal article
The Balanced Electromagnetic Separation Transducer for Bone Conduction Audiometry and Hearing Rehabilitation

Author: Karl-Johan Fredén Jansson

Published: 2017

Published in:

Publication type: Doctoral thesis
2016
Audiometric comparison between Bone Anchored Hearing Aid and Bone Conduction Implant

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Måns Eeg-Olofsson

Published: 2016

Published in: AudiologyNOW!2016

Publication type: Conference poster
Audiometric Comparison Between the First Patients With the Transcutaneous Bone Conduction Implant and Matched Percutaneous Bone Anchored Hearing Device Users

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; M. K. S. Hol; Måns Eeg-Olofsson

Published: 2016

Published in: Otology and Neurotology

Publication type: Journal article
2015
Audiometric comparison in BCI and BAHA matched patients

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Måns Eeg-Olofsson

Published: 2015

Published in:

Publication type: Other
Audiometric results of the Bone Conduction Implant: a comparative study with the Bone Anchored Hearing Aid

Author: Cristina Rigato; Sabine Reinfeldt; Bo Håkansson; Karl-Johan Fredén Jansson; Måns Eeg-Olofsson

Published: 2015

Published in:

Publication type: Other
Magnetic resonance imaging investigation of the bone conduction implant - a pilot study at 1.5 Tesla.

Author: Karl-Johan Fredén Jansson; Bo Håkansson; Sabine Reinfeldt; Cristina Rigato; Måns Eeg-Olofsson

Published: 2015

Published in: Medical Devices: Evidence and Research

Publication type: Journal article
The bone conduction implant: Clinical results of the first six patients.

Author: Sabine Reinfeldt; Bo Håkansson; Hamidreza Taghavi; Karl-Johan Fredén Jansson; Måns Eeg-Olofsson

Published: 2015

Published in: International Journal of Audiology

Publication type: Journal article
Electro-acoustic performance of the new bone vibrator Radioear B81: A comparison with the conventional Radioear B71

Author: Karl-Johan Fredén Jansson; Bo Håkansson; L. Johannsen; Tomas Tengstrand

Published: 2015

Published in: International Journal of Audiology

Publication type: Journal article
Technical design of a new bone conduction implant (BCI) system

Author: Hamidreza Taghavi; Bo Håkansson; Sabine Reinfeldt; Måns Eeg-Olofsson; Karl-Johan Fredén Jansson; Emil Håkansson; Bayan Nasri

Published: 2015

Published in: International Journal of Audiology

Publication type: Journal article
A New Audiometric Bone Vibrator, Radioear B81, and the Bone Conduction Implant with Emphasis on Magnetic Resonance Imaging

Author: Karl-Johan Fredén Jansson

Published: 2015

Published in:

Publication type: Licentiate thesis
2014
The Bone Conduction Implant-First Implantation, Surgical and Audiologic Aspects.

Author: Måns Eeg-Olofsson; Bo Håkansson; Sabine Reinfeldt; Hamidreza Taghavi; Henrik Lund; Karl-Johan Fredén Jansson; Emil Håkansson; Joacim Stalfors

Published: 2014

Published in: Otology and Neurotology

Publication type: Journal article
Evaluation of bone tissue formation in a flat surface attachment of a Bone Conduction Implant - A pilot study in a sheep model

Author: Måns Eeg-Olofsson; Agneta Lith; Bo Håkansson; Sabine Reinfeldt; Hamidreza Taghavi; Karl-Johan Fredén Jansson; Carina B. Johansson

Published: 2014

Published in: Audiology and Neurotology Extra

Publication type: Journal article
MRI Induced Torque and Demagnetization in Retention Magnets for a Bone Conduction Implant

Author: Karl-Johan Fredén Jansson; Bo Håkansson; Sabine Reinfeldt; Hamidreza Taghavi; Måns Eeg-Olofsson

Published: 2014

Published in: IEEE Transactions on Biomedical Engineering

Publication type: Journal article
2013
BCI-bone conduction implant.

Author: Måns Eeg-Olofsson; Bo Håkansson; Sabine Reinfeldt; Joacim Stalfors; Hamidreza Taghavi; Karl-Johan Fredén Jansson

Published: 2013

Published in: The Fourth International Symposium on Bone Conduction Hearing – Craniofacial Osseointegration. Newcastle, UK

Publication type: Conference contribution

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Page manager Published: Wed 20 Jun 2018.

Karl-Johan Fredén Jansson

Latest publications

2020

2019

2018

2017

2016

2015

2014

2013

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