Department

• Surgery

Position

• Adjunct Professor

• Skills training and core curriculum faculty

Books

• Schroeder, A; Filipi, CJ.  Humanitarian Hernia Surgery:  Lessons Learned.    
  Campanelli G (ed) The Art of Hernia Surgery , Springer International Publishing, 2018
• Laparoscopic Proximal Gastric Vagotomy, Fitzgibbons, Filipi, Current Surgical Therapy, Sixth Edition, 1443-1449, 2001
• Esophageal Shortening During the Era of Laparoscopic Surgery, Awad, Mittal, Roth, Anderson, Wilfley, Filipi, World Journal of Surgery, 25, 558-561, 2001
• Mesh Compared with Non-Mesh Methods of Open Groin Hernia Repair: Systematic Review of Randomized Controlled Trials, Filipi, British Journal of Surgery, 87, 854-859, 2001
• Ventral Hernia Recurrence, Tercero, Awad, Filipi, Journal of Abdominal Surgery, Fall 2000, 19-23, 2000
• Endoscopic Valvuloplasty for GERD, Martinez-Serna, Davis, Mason, Perdikis, Filipi, Lehman, Nigro, Watson, Gastrointestinal Endoscopy, 52 (5), 663-670, 2000
• Laparoscopic Hiatal Hernia Repair: Why They Fail, Filipi, Journal Hernia, 4 (4), 219-222, 2000
• Laparoscopic Repair of Morgagni Hernia, Filipi, Marsh, Dickason, Gardner, Surgical Endoscopy, 14 (10), 966-967, 2000

Articles

• Tubre DJ, Voigt C, Filipi CJ The state of surgical task sharing for inguinal hernia repair in limited resource countries., World J Surg, 44(6), 1719-1726, 2019
• Dethlefs HJ, Walker EA, Schechter CB, Dowd R, Filipi L, Garcia JF, Filipi CJ; Evaluation of a Program to Improve Intermediate Diabetes Outcomes in Rural Communities in the Dominican Republic, Journal of Diabetes Research and Clinical Practice, Journal of Diabetes Research and Clinical Practice, 2018
• Humanitarianism in surgery;  Schroeder AD, Campanelli  G, Cavalli M, Cusick R, Fitzgibbons R, Gilbert A, Lawson C, Manion J, Matthews B, Reinpold W, Roll S, Telemaque L-F, Wagner, JP, Chen DC, Filipi CJ.  PMID: 28887764 DOI: 10.1007/s10029-017-1665-0
   , Hernia, 2017
• Moore AM, Carter NH, Wagner JP, Filipi CJ, Chen DC. Web-based Video Assessments of Operative Performance for Remote Telementoring.  , Surg Technol Int, 30, 25-30, 2017
• Wagner, JP, Schroeder, AD, Espinoza, JC, Hiatt, JR, Mellinger, JD, Cusick, RA, Fitzgibbons, RJ, Campanelli, G, Cavalli, M, Roll, S, Silva, RA, Reinpold, W, Telemaque, LF, Matthews, BD, Filipi, CJ, Chen, DC. Global Outreach Using Systematic, Competency-Based Training Paradigm for Inguinal Hernioplasty, JAMA: Journal of the American Medical Association, In Print, 2016
• Centralized, Capacity-building Training of Lichtenstein Hernioplasty in Brazil; Alexandra M. Moore1, Néha Datta1, Justin P. Wagner1, Alexander D. Schroeder2, Wolfgang Reinpold3, Maurice Y. Franciss4, Rodrigo A. Silva4, David C. Chen1, Charles J. Filipi2, Sergio Roll4., Hernia, 2016
• Submitted paper entitled: ”Wearable Technology for Global Surgical Teleproctoring”, Journal of Surgical Education, 2015
• Shiino, Y., Awad, Z.T., Haynatzki, G.R., Davis, R.E., Hinder, R.A., Filipi, C.J. Postmyotomy dysphagia after laparoscopic surgery for achalasia., World Journal of Gastroenterology, 9(5), 1129-1131, 2003
• Duffy, P.E., Awad, Z.T., Filipi, C.J. The laparoscopic reoperation of failed Heller myotomy., Surgical Endoscopy, 1046-1049 , 2003
• Rothstein R I, Filipi CJ. Endoscopic Suturing for Gastroesophageal Reflux Disease: Clinical Outcome with the Bard EndoCinch., Gastrointestinal Endoscopy Clinics of North America, 89-102, 2003
• Kakarlapudi GV, Awad ZT, Haynatzki G, Sampson T, Stroup G, Filipi CJ. The effect of diaphragmatic stressors on recurrent hiatal hernia., Hernia, 2002 Dec; 6(4), 163-166, 2002
• Awad ZT, Selima MA, Filipi CJ. Pseudoachalasia as a Late Complication of Gastric Wrap Performed for Morbid Obesity: Report of a Case., Surgery Today, 32 (10), 906-9, 2002
• Awad ZT, Selima M, Filipi CJ. Hiatal Stenosis Post Laparoscopic Nissen Fundoplication: A Report of Two Cases., Journal of Laparoendoscopic Surgery, 6(4), 397-9, 2002
• Fitzgibbons FJ, Filipi CJ: The Transabdominal Preperitoneal Laparoscopic Herniorraphy. Hernia. Fitzgibbons FJ, Greenburg GA (ed) Lippincott Williams & Wilkins, 2002., Not Applicable, Chapter 23, pp 255-268, 2002
• Fitzgibbons Jr. RJ, Filipi CJ: The Transabdominal Preperitoneal Laparoscopic Herniorrhaphy. ”Hernia”, Abstract Book, Fitzgibbons Jr. RJ, Greensburg GA (ed.), Chapter 23, pp 255-268, 2002
• Repair of Groin Hernia with Synthetic Mesh: Meta-Analysis of Randomized Controlled Trials, Annals of Surgery, 235:3, 322-332, 2002
• Awad ZT. Anderson PI, Sato K, Roth TA, Gerhardt J, Filipi CJ: Laparoscopic reoperative antireflux surgery., Surgical Endoscopy, 15, December 2001 , 1401-1407, 2001
• Symptom Predictability of Reflux Induced Respiratory Disease, Tomonaga, Filipi, Hinder, Marsh, Shiino, Awad, Welch, Gardner, Perdue, Digestive Diseases and Sciences, October 2001 Issue, 2001
• Fitzgibbons RJ, Filipi, Charles J., Laparoscopic Proximal Gastric Vagotomy, Current Surgical Therapy, Sixth Edition, Cameron (ed.), Mosby 2001., Not Applicable, pp 1443-1449, 2001
• Laparoscopic Compared with Open Methods of Groin Hernia Repair: Systematic Review of Randomized Controlled Trials, Filipi, British Journal of Surgery, 87, 860-867, 2001
• The Laparoscopic Treatment of Benign Liver Cyst and Tumors, Awad, Filipi, Current Surgical Therapy, Sixth Edition, 1433-1438, 2001
• An unusual Case of Gastric Volvulus After Laparoscopic Paraesophageal Hernia Repair, Sato, Filipi, Shino, Mittal, Zacker, Gardner, Awad, Surgical Endoscopy, 15, 757-760, 2001
• Transoral, Flexible Endoscopic Suturing for Treatment of GERD: A Multi-Center Trial, Filipi, Lehman, Rothstein, Raijman, Stiegmann, Waring, Hunter, Gostout, Edmundowicz, Dunne, Watson, Cornet, Gastrointestinal Endoscopy, Vol. 53 (4), 416-422, 2001
• Laparoscopic intracorporeal ultrasound of cystic duct length measurement: A new technique to prevent common bile duct injuries, Not Applicable, 1999
• Surgical Endoscopy, Are long hours and hard work detrimental to end-clerkship examination scores?, Not Applicable, 1999
• scores?; American Journal of Surgery: Endoluminal Surgery;, Not Applicable, 1999
• World Journal of Surgery: A combined laparoscopic-endoscopic method of assessment to prevent the complications of short esophagus, Not Applicable, 1999
• Surgical Endoscopy: Laparoscopic treatment of recurrent hernias, Not Applicable, 1999
• Incisional Hernia: Endo-organ full thickness excision for gastric cancer: Report of a case;, Not Applicable, 1999
• Surgery Today: Correlations between esophageal diseases and manometric length: A study of 617 patients, Not Applicable, 1999
• Journal of Gastrointestinal Surgery: Surgery for achalasia: 1998 A literature review;, Not Applicable, 1999
• Journal of Gastrointestinal Surgery: Manometric and radiographic verification of esophageal body decompensation for patients with achalasia;, Not Applicable, 1999
• Journal of the American College of Surgeons: Is laparoscopic reoperation for failed antireflux surgery feasible?, Not Applicable, 1999
• Archives of Surgery: Indications for endo-organ gastric excision;, Not Applicable, 1999
• Surgical Endoscopy: A new form of access for endo-organ surgery: The initial experience with percutaneous endoscopic gastrostomy;, Not Applicable, 1999
• Surgical Endoscopy: Endoluminal gastroplasty for gastroesophageal reflux disease, Not Applicable, 1999
• Surgical Laparoscopy: Additional mechanisms of hiatal hernia recurrence and its prevention, Not Applicable, 1999
• Hernia: Does the duration of gastroesophageal reflux disease and degree of acid reflux correlate with esophageal function? A retrospective analysis of 768 patients, Not Applicable, 1999
• Journal of Clinical Gastroenterology: Preoperative predictability of the short esophagus in patients with stricture or paraesophageal hernia, Not Applicable, 1999
• Surgical Endoscopy: Laparoscope repair of a Morgagni hernia, Not Applicable, 1999
• Surgical Endoscopy: The learning curve for laparoscopic anti-reflux surgery, Not Applicable, 1999
• Journal of Abdominal Surgery: Persistent dysphagia after vagotomy, Not Applicable, 1999
• Surgical Endoscopy: Symptom priority ranking in the care of gastroesophageal reflux: A review of 1850 cases, Not Applicable, 1999
• Digestive Diseases: Left sided throacoscopically assisted gastroplasy: A new technique to manage the shortened esophagus;, Not Applicable, 1999
• Surgical Endoscopy: Prevencion de lesiones biliares con la medicion ultrasonica intraoperatoria de la longitud del conducto cistico en cirugia laparoscopica, Not Applicable, 1999
• Cirugia Espanola: An unusual case of gastric volvulus after laparoscopic paraesophageal hernia repair, Not Applicable, 1999
• Surgical Endoscopy:, Not Applicable, 1999
• Causes of Long-term Dysphagia After Laparoscopic Nissen Fundoplication. Submitted to Journal of the Society of Laparoscopic Surgeons.
• Filipi CJ, Anderson PJ: Endoscopic Gastric Procedures (Endo-organ Surgery). Therapeutic Laparoscopy for Digestive Disease MacFadyen B (ed) in press.
• Marsh RE, Mittal SK, Awad ZT, Tomonaga T, Shiino Y, Filipi CJ: Is analysis of lower esophageal sphincter vector volumes of value? Journal of Gastrointestinal Surgery (in press).
• Shiino Y, Filipi CJ, Hayhatzki G, Hinder RA, Awad ZT, Marsh RE, Tomonaga T: Postmyotomy dysphagia after laparoscopic surgery for achalasia. Surgical Endoscopy, accepted.
• Awad ZT Hiatal Stenosis Post Laparoscopic Nissen Fundoplication: A Report of Two Cases. Journal of Laparoendoscopic Surgery, accepted.
• Tomonaga T, Filipi CJ, Hinder RA, Marsh RE, Shiino Y, Awad ZT, Welch RA: Ambulatory dual probe esophageal pH monitoring as related to manometry and symptoms. Digestive Diseases (accepted).
• Gerhardt J, Marsh R, Filipi C, Watson P, Tselentis R, Reeves J, Buchanan K: Third-year medical student performance after implementation of a pass/fail grading system. Submitted to Teaching and Learning in Medicine.
• Marsh RE, Awad ZT, Cornet DA, Tomonaga T, Gardner G, Smyrk T, Filipi CJ: Endoscopic SIS injection into the lower esophageal sphincter in dogs: A pilot study. Submitted to Journal of Surgical Research.
• Awad ZT, Selima M, Filipi CJ: Pseudoachalasia secondary to gastric wrapping. Submitted to Surgery.

Publications

• Alexandra M. Moore, Neha Datta, Justin P. Wagner, Alexander D. Schroeder,Wolfgang Reinpold, Maurice Y. Franciss, Rodrigo A. Silva, David C. Chen, Charles J. Filipi, Sergio Roll, Centralized, capacity-building training of Lichtenstein hernioplasty in Brazil, American Journal of Surgery, 213, 277-281, 2017

Presentations

• Grand Rounds for Phoenix Arizona Creighton Campus entitled “Hernia Repair for the Underserve, Global Surgery and the Creighton University Global Surgery Fellowship”, 2020
• Speaker at European Hernia Society speaking on “Hernia Centers of Excellence”.  , 2019
• Moderator of two sessions at the European Hernia Society:  Humanitarian hernia projects.  Friday, Sept 13, 9:00-10:30h and Thursday September 12, 4:30-6:00 Training of Young Surgeons.
  
   , 2019
• Surgery for Developing Countries presentation at the Hungarian Hernia Society – Hungary.
   , 2018
• “Mesh Hiatoplasty: An Evidence Based Update" at the American Hernia Society, 2017
• The Lichtenstein Repair and Humanitarianism in Global Surgery - Presentations at Americas Hernia Society, 2016
• Sustaining Health Care Programs in Developing Countries. Global Health Conference at Creighton University., 2015
• Surgical Treatment of Esophageal Motility Disorder. Throckmorton Surgical Society Surgical Symposium on Upper Gastrointestinal Disease – Des Moines, IA., 2003
• Intraluminal Therapy for GERD. Throckmorton Surgical Society Surgical Symposium on Upper Gastrointestinal Disease – Des Moines, IA., 2003
• Endoluminal Therapies for GERD: A Surgeon’s Perspective. Esophageal Conference- Kuyui, Hawaii, 2003
• Surgical and Endoscopic Treatment of Gastroesophageal Reflux Disease American College of Gastroenterology Regional Symposium, 2002
• Mechanisms of Failure for Nissen Fundoplication Endoscopic Suturing for Gastroesophageal Reflux Disease Minimally Invasive Surgery of the Foregut - Cleveland Clinic-Ft. Lauderdale, FL, 2002
• Esophageal Motility: 2002 Sioux Valley Hospital Sioux City, South Dakota, 2002
• GERD: Indications and Assessment Endoluminal Gastroplasty The Stretta Procedure Society of Laparoscopic Surgeons New York, New York, 2001
• Endoscopic Suture Plication Step-wise Logistic Regression to Identify the Short Esophagus: Analysis of Variables Intercellular Edema: A Histological Marker for Reflux? VIIIth World Congress International Society for Diseases of the Esophagus Sao Paulo, Brazil, 2001
• Endoscopic Suturing Device Training Workshop, Memphis, TN, 2001
• Endoscopic Suturing, SAGES Scientific Sessions & Panel Presentations, St. Louis, MO, 2001
• Laparoscopic Nissen Fundoplication, 2nd Laparoscopic Surgery, King Saud University, Riyadh Saudi Arabia, 2001
• Complications of Laparoscopic Nissen Fundoplication, 2nd Laparoscopic Surgery Symposium, King Saud University, Riyadh Saudi Arabia, April 23, 2001, 2001
• Endoluminal Procedures for Gastroesophageal Reflux, 2nd Laparoscopic Surgery Symposium, King Saud University, Riyadh Saudi Arabia, April 23, 2001, 2001
• Endoscopic Suturing Devise Training Workshop, Memphis, TN, 2001
• Laparoscopic Ultrasound vs Operative Cholangiography, The Society of Laparoscopic Surgeons, Orlando, FL, 2000
• New Intraluminal Procedures for GERD, The Society of Laparoscopic Surgeons, Orlando, FL, 2000
• The Short Esophagus, The Society of Laparoscopic Surgeons, Orlando, FL, 2000
• Endoscopic Suturing Devise Training Workshop, Memphis, TN, 2000
• Reflux Disease Update, Omaha Primary Care Update 2000, Omaha, NE, 2000
• Intraluminal Procedures for GERD, Post Graduate Course-American College of Surgeons, Chicago IL, 2000
• Intraluminal Endoscopic Suturing, GUT Club, Omaha, NE, 2000
• Recurrent Hiatal Hernias: Why They Fail, American Hernia Society, Toronto, Canada, 2000
• The Short Esophagus, Society of Abdominal Surgeons, Tampa, FL, 2000
• Laparoscopic Re-Operative Anti-Reflux Surgery, Society of Abdominal Surgeons, Tampa, FL, 2000
• A New Classification for Fundoplication Failure, Society of Abdominal Surgeons, Tampa, FL, 2000
• Mechanisms of Hiatal Hernia Recurrence, Society of Abdominal Surgeons, Tampa, FL, 2000
• Reflux Update, Primary Care Update, Okiboji, IA, 2000
• Endoscopic Sewing, Combined Clinical Symposium (ASGE, AGA, SSAT) San Diego, CA, 2000
• Transoral Endoscopic Suturing for Gastroesophageal Reflux Disease: A Multicenter Trial, Plenary Session ASGE, San Diego, CA, 2000
• Antireflux Surgery: 2000, Wichita, KS, 2000
• Past, Present & Future of Laparoscopic Herniorrhaphy; Future of Endo-Organ Surgery, 1999
• Technique of Endo-Organ Surgery;, 1999
• Technique and Results of Endo-Organ Surgery, TAPP vs TEPP;, 1999
• Video Presentation;, 1999
• Transoral Endoscopic Valvuloplasty;, 1999
• Endo-Organ Surgery, 1999
• 1998 Kansas Chapter, American College of Surgeons;, 1999
• Bloodless Medicine and Surgery-Surgical Interventios for Upper Gastrointestinal Bleeding, 1999
• Society of Laparoscopic Surgeons, American College of Surgeons Spring Meeting;, 1999
• 40th Clinical Congress, Society of Abdominal Surgeons;, 1999
• 40th clinical congress, Society of Abdominal Surgeons, 1999
• Minimally Invasive Technologies: Medicine in the 21st Century PIMIT Inaugural Symposium, 1999
• Symposium on Laproscopic Surgery, Logn Island Jewish Medical Center, 1999
• Postgraduate Course #3, Ultrasound for Surgeons, American College for Surgeons NY, 1999
• Improving Surgical Outcomes for Gastroesophageal Reflux Disease, Creighton University, 1999
• Annual Meeting of the Crawford County Medical Society, Creighton University;, 1999
• Improving Surgical Outcomes for Gastroesophageal Reflux Disease, Creighton University;, 1999
• 4th National Seminar for Bloodless Medicine and Surgery "Exploring New Frontiers in Medicine, 1999
• The Current Status of Endo Organ Surgery, Society of Laparoscopic Surgeons, New York, NY, 1999
• The Short Esophagus, Onawa, IA, 1999
• Esophageal Shortening in the ERA of Laparoscopic Surgery, 38th World Congress of Surgery, Vienna, 1999
• Treatment of the Short Esophagus, 40th Clinical Congress, Society of Abdominal Surgeon, San Diego, CA, 1999
• Laparoscopic Recurrent Inguinal Hernia Repair, 40th Clinical Congress, Society of Abdominal Surgeons, San Diego, CA, 1999
• Intraluminal Treatment of Foregut Diseases, Minimally Invasive Technologies: Medicine in the 21st Century PIMIT Inaugural Symposium, Dallas, TX, 1999
• Postgraduate Course #3, Ultrasound for Surgeons, American College of Surgeons Spring Meeting, New York, NY, 1999
• Laparoscopic Ultrasonography: The Surgeons Palpating Hand, American College of Surgeons Spring Meeting, New York, NY, 1999
• Laparoscopic Intraluminal Surgery, Osaka, Japan, 1999
• Laparoscopic Intraluminal Surgery, Toykyo, Japan, 1999
• Laparoscopic Intraluminal Surgery, Nygoya, Japan, 1999
• Laparoscopic Hernia: Is the Verdict In?, Society of Laparoscopic Surgeons, San Diego, CA, 1998
• Bloodless Medicine & Surgery - Surgical Interventions for Upper Gastrointestinal Bleeding, Chicago, IL, 1998
• 4th National Seminar for Bloodless Medicine & Surgery "Exploring New Frontiers in Medicine", 1998
• Antireflux Surgery, 1998 Kansas Chapt, American College of Surgeons, Wichita, KS, 1998
• Past, Present & Future of Laparoscopic Herniorrhaphy, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• Future of Endo-Organ Surgery, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• Technique of Endo-Organ Surgery, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• Technique & Results of Endo-Organ Surgery, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• TAPP & TEPP, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• (Video Presentation) Transoral Endoscopic Valvuloplasty, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• (Video Presentation) Endo-Organ Surgery, 3rd World Congress of Latin American Endoscopic Surgeons, San Paulo, Brazil, 1998
• Physiology of the Antireflux Barrier, Omaha, NE, 1998
• Improving Surgical Outcomes for Gastroesophageal Reflux Disease, 1998
• The Laparoscopic Approach to the Acute Abdomen, Denison, IA, 1998
• Symposium of Laparoscopic Surgery, Long Island Jewish Med. Center, Garden City, NY, 1998
• Annual Meeting of the Crawford County Medical Society, Creighton University, 1998
• Laparoscopic Nissen Fundoplication, Garden City, New York, 1998
• Current Therapy Concepts for Surgical Treatment of Inguinal Hernias, European Surgical Institute, Hamburg, Germany, 1998
• Laparoscopic Endoluminal Surgery, San Antionio, TX, 1998
• Post Graduate Advanced Laparoscopy Course, Southwestern Surgical Congress, 1998
• Resident teaching of laparoscopic herniorrhaphy, American Hernia Society, Miami, FL, 1998
• Laparoscopic Repair - TAPP for Recurrent Inguinal Hernia , Hernia Experts Meeting, St. Moritz, Switzerland, 1998
• The cutting edge for the surgical treatment of gastroesophageal reflux disease, Medical Grand Rounds, Creighton University, Omaha, NE, 1998
• The current treatment for Esophageal Cancer, Surgical Grand Rounds, Creighton University, Omaha, NE, 1997
• Laparoscopic Training Course, Dept. of Veterans Affairs, Birmingham Educ. Center, Birmingham, AL, 1997
• Laparoscopic Nissen Fundoplication, Birmingham, AL, 1997
• Endo-organ Gastric Procedures, Creighton University, 1997
• Intraluminal surgery of the foregut, SAGES Annual Meeting, San Diego, CA, 1997

• Moderator at the Esophageal Conference – Omaha Marriott Regency, Omaha, NE , 2019
• Awarded an Honorary Membership in the Hungarian Hernia Society. , 2018
• Bite block with airway mount. (Patent No: 61221545), 2010
• Provisional - BITE BLOCKS (Patent No: 60/939348), 2007
• PCT & US: SYSTEM & TECHNIQUES FOR MAGNETIC MANIPULATION OF INTERNAL ORGANS DURING MINIMALLY INVASIVE SURGERY (Patent No: PCT/US2007/69317 & US 11/750670), 2007
• Provisional-DILATOR FOR USE WITH AN ENDOSCOPE (Patent No: 60/885623), 2007
• PCT-SYSTEMS & TECHNIQUES FOR MINIMALLY INVASIVE GASTROINTESTINAL PROCEDURES (Patent No: Pending), 2006
• Provisional-SURGICAL FASTENERS AND METHODS OF USE (Patent No: 60/821098), 2006
• Provisional - SYSTEMS AND TECHNIQUES FOR TRANSORAL GASTROPLASTY (Patent No: 60/757,694), 2006
• Provisional - SYSTEMS AND TECHNIQUES FOR TRANSORAL GASTROPLASTY (Patent No: 60/742,826), 2005
• SUTURING DEVICES AND METHODS (Patent No: 60/499,539), 2004
• DEVICES USEFUL IN BARIATRIC PROCEDURES AND OTHER MEDICAL PROCEDURES (Patent No: 60/599,939), 2004
• OVERTUBE AND CUTTING DEVICES USEFUL IN ENDOSCOPIC AND OTHER PROCEDURES (Patent No: 60/592,704), 2004
• ANASTOMOSIS DEVICE (Patent No: 60/592,681), 2004
• FASTENING DEVICES AND METHODS (Patent No: 60/576,510), 2004
• METHODS AND MATERIALS THAT ARE USEFUL IN ENDOSCOPIC AND OTHER MEDICAL PROCEDURES (Patent No: 60/528,598), 2003
• MATERIALS AND METHODS USEFUL IN ENDOSCOPIC AND OTHER MEDICAL PROCEDURES (Patent No: 60/507,837), 2003
• METHODS AND MATERIALS USEFUL IN ENDOSCOPIC AND OTHER MEDICAL PROCEDURES (Patent No: 60/499,539), 2003