Electromyography system

Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion

Reexamination Certificate

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Reexamination Certificate

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07991463

ABSTRACT:
Systems for determining structural integrity of a bone within the spine of a patient, the bone having a first aspect and a second aspect, wherein the second aspect separated from the first aspect by a width and located adjacent to a spinal nerve. A stimulator is configured to generate an electrical stimulus to be applied to the first aspect of the bone. A monitor is configured to electrically monitor a muscle myotome associated with the spinal nerve to detect if an onset neuro-muscular response occurs in response to the application of the electrical stimulus to the first aspect of the bone. An adjuster is configured to automatically increase the magnitude of the electrical stimulus to until the onset neuro-muscular response is detected. Lastly, a communicator is configured to communicate to a user via at least one of visual and audible means information representing the magnitude of the electrical stimulus which caused the onset neuro-muscular response.

REFERENCES:
patent: 2736002 (1956-02-01), Oriel
patent: 3785368 (1974-01-01), McCarthy et al.
patent: 4545374 (1985-10-01), Jacobson
patent: 4592369 (1986-06-01), Davis et al.
patent: 4759377 (1988-07-01), Dykstra
patent: 4962766 (1990-10-01), Herzon
patent: 4964411 (1990-10-01), Johnson et al.
patent: 5196015 (1993-03-01), Neubardt
patent: 5284153 (1994-02-01), Raymond et al.
patent: 5284154 (1994-02-01), Raymond et al.
patent: 5375067 (1994-12-01), Berchin
patent: 5474558 (1995-12-01), Neubardt
patent: 5480440 (1996-01-01), Kambin
patent: 5549656 (1996-08-01), Reiss
patent: 5775331 (1998-07-01), Raymond et al.
patent: 5779642 (1998-07-01), Nightengale
patent: 5806522 (1998-09-01), Katims
patent: 5928158 (1999-07-01), Aristides
patent: 5935131 (1999-08-01), Bonutti
patent: 6027456 (2000-02-01), Feler et al.
patent: 6038477 (2000-03-01), Kayyali
patent: 6104957 (2000-08-01), Alo et al.
patent: 6104960 (2000-08-01), Duysens et al.
patent: 6119068 (2000-09-01), Kannonji
patent: 6128576 (2000-10-01), Nishimoto et al.
patent: 6138681 (2000-10-01), Chen et al.
patent: 6181961 (2001-01-01), Prass et al.
patent: 6266558 (2001-07-01), Gozani et al.
patent: 6306100 (2001-10-01), Prass et al.
patent: 6334068 (2001-12-01), Hacker
patent: 6466817 (2002-10-01), Kaula et al.
patent: 6579244 (2003-06-01), Goodwin
patent: 6719692 (2004-04-01), Kleffner et al.
patent: 6796985 (2004-09-01), Bolger et al.
patent: 6819956 (2004-11-01), DiLorenzo
patent: 6849047 (2005-02-01), Goodwin
patent: 6855105 (2005-02-01), Jackson, III et al.
patent: 6929606 (2005-08-01), Ritland
patent: 7089059 (2006-08-01), Pless
patent: 2004/0225228 (2004-11-01), Ferree
patent: 2005/0033380 (2005-02-01), Tanner et al.
patent: 2005/0192575 (2005-09-01), Pacheco
patent: 2008/0064976 (2008-03-01), Kelleher et al.
patent: 2008/0064977 (2008-03-01), Kelleher et al.
patent: 29908259 (1999-08-01), None
patent: 0607688 (1994-07-01), None
patent: 2795624 (2001-01-01), None
Neurovision SE Nerve Locator/Monitor, RLN Systems, Inc. Operators Manual, 1999, 22 pages.
Calancie et al, Stimulus Evoked EMG Monitoring During Transpedicular Lumbosacral Spine Instrumentation, Spine, 19(24), 1994, 2780-2786.
“Brackman II EMG System”, Medical Electronics, 1994, 4pages.
“Electromyography System”, International Search Report, International Patent Application No. PCT/US00/32329, Apr. 27, 2001, 9 pages.
“Neurovision SE Nerve Locator/Monitor”, RLN Systems. Inc. Operators Manual, 1999, 22 pages.
“System and Methods for Determining Nerve Proximity, Direction, and Pathology During Surgery”, International Search Report, International Patent No. PCT/US02/22247, Mar. 27, 2003, 4 pages.
“Systems and Methods for Performing Percutaneous Pedicle Integrity Assessments”, International Search Report, International Application No. PCT/US02/35047, Aug. 11, 2003, 5 pages.
“Systems and Methods for Performing Surgery Procedures and Assessemnts”, International Search Report, International Application No. PCT/US02/30617, Jun. 5, 2003, 4 pages.
“The Brackman II EMG Monitoring System”, Medical Electronics Co. Operator's Manual Version 1.1, 1995, 50 pages.
“The Nicolet Viking IV”, Nicolet Biomedical Products 1999, 6 pages.
Anderson, D. G. et al., “Pedicle screws with high electrical resistance: a potential source of error with stimulus-evoked EMG”, Spine. 27(14): Department of Orthopaedic Surgery, University of Virginia Jul. 15, 2002, 1577-1581.
Bose, Bikash et al., “Neurophysiologic Monitoring of Spinal Nerve Root Function During Instrumented Posterior Lumbar Spine Surgery”, Spine, 27(13) 2002, 1444-1450.
Calancie, Blair et al.,“Stimulus-Evoked EMG Monitoring During Transpedicular Lumbosacral Spine Instrumentation”, Spine, 19(24), 1994, pp. 2780-2786.
Clements, David et al., “Evoked and Spontaneous Electromyography to Evaluate Lumbosacral Pedicle Screw Placement”, Spine, 21(5),1996, 600-604.
Danesh-Clough, T. et al., “The use of evoked EMG in detecting misplaced thoracolumbar pedicle screws”, Spine. 26(12) Orthopaedic Department, Dunedin Hospital Jun. 15, 2001, 1313-1316.
Darden, B. V. et al., “A comparison of impedance and electromyogram measurements in detecting the presence of pedicle wall breakthrough”, Spine. 23(2) Charlotte Spine Center, North Carolina Jan. 15, 1998, 256-262.
Ebraheim, N. A. et al., “Anatomic relations between the lumbar pedicle and the adjacent neural structures”, Spine. 22(20) Department of Orthopaedic Surgery, Medical College of Ohio, Oct. 15, 1997, 2338-2341.
Glassman, Steven et al., “A Prospective Analysis of Intraoperative Electromyographic Monitoring of Pedicle Screw Placement With Computed Tomographic Scan Confirmation”, Spine , 20(12) 1995, 1375-1379.
Holland, N. R. et al., “Higher electrical stimulus intensities are required to activate chronically compressed nerve roots. Implications for intraoperative electromyographic pedicle screw testing”, Spine. 23(2) Department of Neurology, Johns Hopkins University School of Medicine Jan. 15, 1998, 224-227.
Holland, Neil et al., “Intraoperative Electromyography During Thoracolumbar Spinal Surgery”, Spine, 23(17) 1998, 1915-1922.
Journee, H. L. et al., “System for Intra-Operative Monitoring of the Cortical Integrity of the Pedicle During Screw Placement in Low-Back Surgery: Design and Clinical Results”, Sensory and neuromuscular diagnostic instrumentation and data analysis, 18th Annual International Conference on Engineering in Medicine and Biology Society, 1(31) Oct. 1996, 144-145.
Lenke, Lawrence et al., “Triggered Electromyographic Threshold for Accuracy of Pedicle Screw Placement”, Spine, 20 (14) 1995, 1585-1591.
Maguire, J. et al., “Evaluation of Intrapedicular Screw Position Using Intraoperative Evoked Electromyography”, Spine, 20(9) 1995, 1068-1074.
Minahan, R. E. et al., “The effect of neuromuscular blockade on pedicle screw stimulation thresholds”, Spine. 25(19) Department of Neurology, Johns Hopkins University, School of Medicine, Oct. 1, 2000, 2526-2530.
Toleikis, J. et al., “The Usefulness of Electrical Stimulation for Assessing Pedicle Screw Replacements”, Journal of Spinal Disorder, 13(4) 2000, 283-289.
Welch et al., “Evaluation with evoked and spontaneous electromyography during lumbar instrumentation : a prospective study”, J. Neurosurg 87 Sep. 1997, 397-402.
“Systems and Methods for Performing Dynamic Pedicle Integrity Assessments”, International Search Report, International Application No. PCT/US04/025550, Jun. 3, 2005, 3 pages.
Zouridakis et al., A concise Guide to Intraoperative Monitoring, Chapter 1 (CRC Press 2001).
American Society of Electroneurodiagnostic Technologists Position Statement on Unattended Intraoperative Neurophysiologic Monitoring, p. 1 (2007), available at http://www.aset.org/files/public/Position—Statement—on—Unattended—Monitoring.pdf.

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