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(12) United States Patent (10) Patent No.: US 8,556,939 B2 Henderson Et Al

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(12) United States Patent (10) Patent No.: US 8,556,939 B2 Henderson Et Al US008556939B2 (12) United States Patent (10) Patent No.: US 8,556,939 B2 Henderson et al. (45) Date of Patent: Oct. 15, 2013 (54) MATHEMATICAL RELATIONSHIP OF (56) References Cited STRAIN, NEUROLOGICAL DYSFUNCTION AND ABNORMAL BE HAVOR RESULTING U.S. PATENT DOCUMENTS FROM NEUROLOGICAL DYSFUNCTION OF 1,750,769 A 3, 1930 Austin THE BRAINSTEM 3,073,022 A 1/1963 Bush et al. 4,456,005 A 6/1984 Lichty (76) Inventors: Fraser Cummins Henderson, Upper 4,653,481 A 3, 1987 Howland et al. Marlboro, MD (US); John W. Newman, 4,655,199 A 4, 1987 Steffee 4,762,122 A 8, 1988 Slocum Newtown Square, PA (US) 4,790,702 A 12/1988 Maganias 4,800,874 A 1/1989 David et al. (*) Notice: Subject to any disclaimer, the term of this 4,805,602 A 2f1989 Puno et al. patent is extended or adjusted under 35 5,030,220 A 7, 1991 Howland U.S.C. 154(b) by 372 days. 5,034,011 A 7, 1991 Howland 5,129,900 A 7, 1992 Asher et al. (21) Appl. No.: 12/638,930 (Continued) (22) Filed: Dec. 15, 2009 FOREIGN PATENT DOCUMENTS (65) Prior Publication Data DE 102004061280 6, 2006 WO 20040069038 8, 2004 US 2010/O152575A1 Jun. 17, 2010 WO 20070005561 1, 2007 WO 20070044716 4/2007 Related U.S. Application Data OTHER PUBLICATIONS (63) Continuation-in-part of application No. 12/350,936, filed on Jan. 8, 2009, now Pat. No. 8,187,302. Aman, Michael G., et al., “The Aberrant Behavior Checklist: A Behavior Rating Scale for the Assessment of Treatment Effects'. Am (60) Provisional application No. 61/019,622, filed on Jan. J Ment Defic, 1985: 89(5): 485-491. 8, 2008, provisional application No. 61/098,456, filed on Sep. 19, 2008, provisional application No. (Continued) 61/122,506, filed on Dec. 15, 2008, provisional application No. 61/104,862, filed on Oct. 13, 2008, Primary Examiner — Mary C. Hoffman provisional application No. 61/138,031, filed on Dec. Assistant Examiner — Christina Negrellirodriguez 16, 2008. (74) Attorney, Agent, or Firm — The Patentwise Group, LLC (51) Int. Cl. A6 IB 7/88 (2006.01) (57) ABSTRACT (52) U.S. Cl. A therapeutic method for treating a neurological disease by USPC ........................................... 606/279; 600/594 evaluating and correcting an abnormal neuraxial angle that (58) Field of Classification Search cause abnormal biomechanically induced neuraxial stress USPC ............. 606/54, 60, 69, 86 B, 264, 276, 281, and strain. 606/279; 600/425,594; 128/845 See application file for complete search history. 14 Claims, 34 Drawing Sheets US 8,556,939 B2 Page 2 (56) References Cited 2007/0219554 A1 9/2007 Landry et al. 2007/0270840 A1 11/2007 Chin et al. U.S. PATENT DOCUMENTS 2008, OO39843 A1 2/2008 Abdou 2008.OO45957 A1 2/2008 Landry et al. 5,133,716 A 7, 1992 Plaza 2008/0086124 A1 4/2008 Forton et al. 5,176,680 A 1/1993 Vignaud et al. 2008/O125781 A1 5/2008 Hoffman et al. 5,269,784. A 12, 1993 Mast 2008/02O0953 A1 8/2008 Reiley et al. 5,360,429 A 11, 1994 Jeanson et al. 2008/0234.755 A1 9/2008 Henderson, Sr. et al. 5,470,333 A 11/1995 Ray 2008/0234766 A1 9/2008 Henderson, Sr. et al. 5,507,745 A 4, 1996 Logroscino et al. 2009 OO18584 A1 1/2009 Henderson, Sr. et al. 5,545,164 A 8, 1996 Howland 2009.0036894 A1 2/2009 Henderson, Sr. et al. 5,545,228 A 8, 1996 Kambin 2009/0177230 A1 7/2009 Henderson, Sr. et al. 5,643,261 A 7, 1997 Schafer et al. 5,653,710 A 8/1997 Harle OTHER PUBLICATIONS 5,800,435 A 9, 1998 Errico et al. 5,968,047 A 10, 1999 Reed Aman, Michael G. et al., “Psychometric Characteristics of the Aber 6,039,738 A 3, 2000 Sanders et al. rant Behavior Checklist”, Am J Ment Defic, 1985: 89(5): 492-502. 6,056,753. A 5, 2000 Jackson Arundine, Mark, et al., “Vulnerability of Central Neurons to Second 6,059,786 A 5, 2000 Jackson ary Insults after in Vitro Mechanical Stretch', J Neurosci, 2004. 6,080,579 A 6/2000 Hanley, Jr. et al. 24(37): 8106-8123 6,102.913 A 8, 2000 Jackson ser: 6,125,526 A 10, 2000 Wierzchon Bain, Allison C., et al., “Tissue-Level Thresholds for Axonal Damage 6,129,728 A 10/2000 Schumacher et al. in an Experimental Model of Central Nervous System White Matter 6,129,730 A 10, 2000 Bono et al. Injury”, J Biomech Eng, 2000. 122: 615-622. 6,146,382 A 11/2000 Hurlbert Bilston, Lynne E., et al., “The Mechanical Properties of the Human 6,179,841 B1 1/2001 Jackson Cervical Spinal Cord in Vitro”. Ann Biomed Eng, 1996. 24: 67-74. 6,193,719 B1 2/2001 Gournay et al. Breig, A., “Overstretching of and Circumscribed Pathological Ten 6,221,073 B1 4/2001 Weiss et al. 6,224,596 B1 5, 2001 Jackson sion in the Spinal Cord—A Basic Cause of Symptoms in Cord Dis 6,238,396 B1 5, 2001 Lombardo orders', J Biomech, 1970. 3: 7-9. 6,319,254 B1 1 1/2001 Giet et al. Sawin, Paul D., et al., “Basilar invagination in osteogenesis 6,325,803 B1 12/2001 Schumacher et al. imperfecta and related osteochondrodysplasias: medical and Surgical 6,355,043 B1 3/2002 Adam management”. J Neurosurg, 1997.86: 950-960. 6,423,067 B1 7/2002 Eisermann Brill, Charles B., et al., "Chiari I Malformation: Association With 3.25 R 23: as: Seizures and Developmental Disabilities”. J. Child Neurog, 1997. I - I 12(2): 101-106. g: R 33.9 Siteli et al. Brooks, Arthur L., et al., “Atlanto-axial arthrodesis by the wedge 6,547,790 B2 4/2003 Harkey, III et al. compression method”. J Bone Joint Surg Am, 1978.60(3): 279-284. 6,565,566 B1 5/2003 Wagner et al. Bunge, Richard P. et al., “Observations on the Pathology of Human 6,623,486 B1 9, 2003 Weaver et al. Spinal Cord Injury. A Review and Classification of 22 New Cases 6,726,687 B2 4/2004 Jackson with Details from a Case of Chronic Cord Compression with Exten 6,761,721 B2 7/2004 Burgess et al. sive Focal Demyelination”. Adv Neurol, 1993. 59: 75-89. 6,783,527 B2 8/2004 Drewry et al. Bunge, Richard P. et al., “Observations on the Pathology of Several 6,902,5656928.900 B2 6/20058, 2005 BergerDallet etal. al. Types offH Human Spinal Cord IniInjury, withith EmphasisEmphasi on the AstrocyteAstr 6,097937 B2 2, 2006 Jackson Response to Penetrating Injuries'. Adv Neurol, 1997. 72: 305-315. 7,018,379 B2 3/2006 Drewry et al. Charman, Tony, et al., “Practitioner Review: Diagnosis of autism 7,033,358 B2 4/2006 Taylor et al. spectrum disorder in 2- and 3-year-old children”. J. Child Psychol 7,052,499 B2 5/2006 Steger et al. Psychiatry, 2002. 43(3): 289-305. 7,131.303 B1 1 1/2006 Champaigne Coyne, Terry J., et al., “C1-C2 Posterior Cervical Fusion: Long-term 7,213,999 B2 5, 2007 HaaS Evaluation of Results and Efficacy”. Neurosurgery, 1995. 37(4): 7,235,079 B2 6, 2007 Jensen et al. 688-693. 7,250,052 B2 7/2007 Landry et al. Crowe, Maria J., et al., “Apoptosis and delayed degeneration after 7.354,442 B2 4/2008 Sasso et al. spinal cord injury in rats and monkeys'. Nat Med, 1997.3(1): 73-76. 7,537,596 B2 5, 2009 Jensen Cushing, KE, et al., “Tethering of the vertebral artery in the congeni 2002/O1202682001/002O168 A1 9/20018/2002 BergerHermann et al. talalarcuate tef Ioramen offtheatl uneatlas vertebra:rtebra: a possiblebl cause overtebrafvertebral 2003. O153913 A1 8/2003 Altarac et al. artery dissection in children”. Dev Med Child Neurol, 2001. 43(7): 491-496. 28S A. 3. E.tal Dickman, Curtis A., et al., “Posterior C1-C2 Transarticular Screw 2005/0038438 A1 2/2005 Anderson et al. Fixation for Atlantoaxial Arthrodesis'. Neurosurgery, 1998. 43(2): 2005, 0080417 A1 4/2005 Alexis et al. 275-280. 2005/0O80591 A1 4/2005 Henderson et al. ........... 7O2 152 Dyste, Gregg N., et al., “Presentation and Management of Pediatric 2005, 0124994 A1 6/2005 Berger et al. Chiari Malformations without Myelodysplasia”. Neurosurgery, 2005/O143737 A1 6, 2005 Pafford et al. 1988. 23(5): 589-597. 2005/O159750 A1 7/2005 Doherty Eleraky, Mohammed Aly, et al., “Posterior atlantoaxial facet screw 3:39:59, A. 358. By tal fixation in rheumatoid arthritis”. JNeurosurg, 1998. 89: 8-12. yner et al. Fein. Deborah. et al... “Clinical Correlates of Brainstem Dvsfunction 2005/0283248 A1 12/2005 Gordon et al. y 2005/0288669 A1 12, 2005 Abdou in Autistic Children”, J Autism and Dev Disorders, 1981. 11(3): 303-315. 2.89. A. 58. Beyer et al. ........... 606/69 Fombonne, Eric, “The epidemiology of autism: a review'. Psych 2006/0173543 A1 8, 2006 Brau et al. Med, 1999. 29: 769-786. 2006/021771.0 A1 9, 2006 Abdou Fombonne, Eric, “The Prevalence of Autism”, JAMA, 2003. 289(1): 2006/0264946 A1 11, 2006 Youn 87-89. 2006/0264948 A1 11, 2006 Willins Fombonne, Eric, et al., “MMR and autistic enterocolitis: consistent 2006, O293660 A1 12, 2006 Lewis epidemiological failure to find an association'. Mol Psychiatry, 2003. 2007, 0118121 A1 5, 2007 Purcell et al. 8: 133-134. US 8,556,939 B2 Page 3 (56) References Cited Lusardi.
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