Electropermanent magnetic anchoring for surgery and endoscopy

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dc.contributor.authorTugwell, Josef
dc.contributor.authorBrennan, Philip
dc.contributor.authorO'Shea, Conor
dc.contributor.authorO'Donoghue, Kilian
dc.contributor.authorPower, Timothy
dc.contributor.authorO'Shea, Michael
dc.contributor.authorGriffiths, James
dc.contributor.authorCahill, Ronan A.
dc.contributor.authorCantillon-Murphy, Pádraig
dc.date.accessioned2016-06-13T08:46:16Z
dc.date.available2016-06-13T08:46:16Z
dc.date.issued2014-10-29
dc.date.updated2015-01-27T17:56:36Z
dc.description.abstractThe use of magnets for anchoring of instrumentation in minimally invasive surgery and endoscopy has become of increased interest in recent years. Permanent magnets have significant advantages over electromagnets for these applications; larger anchoring and retraction force for comparable size and volume without the need for any external power supply. However, permanent magnets represent a potential hazard in the operating field where inadvertent attraction to surgical instrumentation is often undesirable. The current work proposes an interesting hybrid approach which marries the high forces of permanent magnets with the control of electromagnetic technology including the ability to turn the magnet OFF when necessary. This is achieved through the use of an electropermanent magnet, which is designed for surgical retraction across the abdominal and gastric walls. Our electropermanent magnet, which is hand-held and does not require continuous power, is designed with a center lumen which may be used for trocar or needle insertion. The device in this application has been demonstrated successfully in the porcine model where coupling between an intraluminal ring magnet and our electropermanent magnet facilitated guided insertion of an 18 Fr Tuohy needle for guidewire placement. Subsequent investigations have demonstrated the ability to control the coupling distance of the system alleviating shortcomings with current methods of magnetic coupling due to variation in transabdominal wall thicknesses. With further refinement, the magnet may find application in the anchoring of endoscopic and surgical instrumentation for minimally invasive interventions in the gastrointestinal tract.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTugwell, J., Brennan, P., O’Shea, C., O’Donoghue, K., Power, T., O’Shea, M., Griffiths, J., Cahill, R. A. and Cantillon, P. (2105) ‘Electropermanent magnetic anchoring for surgery and endoscopy’, IEEE Transactions on Biomedical Engineering, 62(3), pp. 842-848. doi: 10.1109/TBME.2014.2366032en
dc.identifier.doi10.1109/TBME.2014.2366032
dc.identifier.endpage848en
dc.identifier.issn0018-9294
dc.identifier.issued3en
dc.identifier.journaltitleIEEE Transactions On Biomedical Engineeringen
dc.identifier.startpage842en
dc.identifier.urihttps://hdl.handle.net/10468/2724
dc.identifier.volume62en
dc.language.isoenen
dc.publisherIEEEen
dc.rights© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectElectromagnetsen
dc.subjectElectropermanent magnets (EPMs)en
dc.subjectEndoscopyen
dc.subjectMagnetic couplingen
dc.subjectMagnetsen
dc.subjectMinimally invasive surgeryen
dc.titleElectropermanent magnetic anchoring for surgery and endoscopyen
dc.typeArticle (peer-reviewed)en
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