Готові списки джерел за темами / Endoscopic Laser Surgery

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Добірка наукової літератури з теми "Endoscopic Laser Surgery"

Автор: Grafiati

Опубліковано: 11 березня 2023

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Статті в журналах з теми "Endoscopic Laser Surgery"

HIKT, Yoshiki. "Endoscopic Surgery and Laser." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 12, no. 3 (1991): 9–13. http://dx.doi.org/10.2530/jslsm1980.12.3_9.

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Scherer, Hans, Juergen U. G. Hopf, and Marietta Hopf. "Endoscopically Based Endonasal and Transnasal Lasersurgery." Diagnostic and Therapeutic Endoscopy 7, no. 3-4 (January 1, 2001): 109–27. http://dx.doi.org/10.1155/dte.7.109.

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The endoscopically based endonasal and transnasal laser surgery is a surgical procedure, which offers the ENT-specialist a safe and effective method to cure or to improve a number of diseases of the upper and middle airways. Coagulative lasers are used in contact and noncontact mode. Their light is mainly absorbed by hemoglobin but rarely by water. The laser–tissue interaction is performed via flexible glass fibers. For the delivery of the laser beam we use specially designed applicator sheaths, which incorporate the endoscope, the laser fiber and the suction channel. The procedure is controlled online via the endoscopic image on the monitor (“video-endoscopy”). The patient suffers less trauma using this treatment compared to the standard endoscopic surgery and the procedure is much quicker. Pre- and post-operative rhinomanometric and rhinoresistometric measurements reveal that the air flow rate of the nose can be improved effectively.

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Deppe, Gunter. "Endoscopic laser surgery." Gynecologic Oncology 40, no. 2 (February 1991): 167. http://dx.doi.org/10.1016/0090-8258(91)90111-h.

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Boese, A., M. Detert, Chr Stibbe, M. Thiele, and Chr Arens. "“Hands free for intervention”, a new approach for transoral endoscopic surgery." Current Directions in Biomedical Engineering 1, no. 1 (September 1, 2015): 157–59. http://dx.doi.org/10.1515/cdbme-2015-0039.

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AbstractA standard method for transoral diagnostic and dissection of tumour is the endoscopic examination plus microscopic and laser supported surgery. For endoscopic examination a set of rigid endoscopes with different angles of view are on the market and in use. To simplify the diagnostic examination, a first idea was to use an endoscope with flexible angles of view. A further step of this approach is the electrical angulation of the endoscopic view to enable an adaption on the surgery site without using the hands. Thus the hands are free for intervention. This paper shows a first implementation of a prototype of an electrical operated endoscope for a free hand imaging in transoral interventions.

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Czigner, J., and L. Sávay. "Endoscopic CO2-Laser Surgery for Vocal Cord Cancer." Diagnostic and Therapeutic Endoscopy 1, no. 2 (January 1, 1994): 69–74. http://dx.doi.org/10.1155/dte.1.69.

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A retrospective study is reported on endoscopic CO2-laser microsurgery in 69 patients with histologically verified early vocal cord cancer. A flexible nasopharyngolaryngoscope (STORZ Co) was used for preoperative assessment and occasionally for postoperative follow-up.Six years of experience with this technique have led to endoscopic cordectomy, previously not accepted as a therapeutic method alone, but which has become the favored method with use of the CO2 laser endoscopically. Laser surgery as a therapeutic endoscopic procedure provided successful treatment of early vocal cord cancer in 59 (86%) of the 69 patients. The initial success rate together with “salvage” treatment modalities reached 96% (66/69 patients).Endoscopic laser surgery resulted in a decrease in voice intensity and phonatory duration from near normal to mildly abnormal. Voice preservation succeeded in 97% of all patients. Thus, the data demonstrate that endoscopic laser surgery is a useful modem method of therapeutic endoscopy for early vocal cord carcinoma.

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Neitsch, Marie, Iris-Susanne Horn, Mathias Hofer, Andreas Dietz, and Miloš Fischer. "Integrated Multipoint-Laser Endoscopic Airway Measurements by Transoral Approach." BioMed Research International 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/6838697.

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Objectives. Optical and technical characteristics usually do not allow objective endoscopic distance measurements. So far no standardized method for endoscopic distance measurement is available. The aim of this study was to evaluate the feasibility and accuracy of transoral airway measurements with a multipoint-laser endoscope.Methods.The semirigid endoscope includes a multipoint laser measurement system that projects 49 laser points (wavelength 639 nm, power < 5 mW) into the optical axis of the endoscopic view. Distances, areas, and depths can be measured in real-time. Transoral endoscopic airway measurements were performed on nine human cadavers, which were correlated with CT measurements.Results.The preliminary experiment showed an optimum distance between the endoscope tip and the object of 5 to 6 cm. There was a mean measurement error of 3.26% ± 2.53%. A Spearman correlation coefficient of 0.95 (p=0.01) was calculated for the laryngeal measurements and of 0.93 (p<0.01) for the tracheal measurements compared to the CT. Using the Bland-Altman-Plot, the 95% limits of agreement for the laryngeal measurements were satisfactory: −0.76 and 0.93.Conclusions.Integrated multipoint-laser endoscopic measurement is a promising technical supplement, with potential use in diagnostic endoscopy and transoral endoscopic surgery in daily practice.

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Ohomae, Yukio, Tetuzou Inouye, Tetuya Tanabe, and Manabu Nakanobou. "Endoscopic laser surgery for laryngeal disease." JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 13, Supplement (1992): 239–42. http://dx.doi.org/10.2530/jslsm1980.13.supplement_239.

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Marty, Alan T. "ENDOSCOPIC LASER SURGERY HANDBOOK." Chest 94, no. 1 (July 1988): A—21—A—22. http://dx.doi.org/10.1016/s0012-3692(16)39968-8.

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Keagy, Blair A. "Endoscopic laser surgery handbook." Journal of Vascular Surgery 10, no. 1 (July 1989): 108. http://dx.doi.org/10.1016/0741-5214(89)90301-7.

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Jeanneret, Alphonse, and Audré Duranceau. "Endoscopic laser surgery handbook." Annals of Thoracic Surgery 47, no. 2 (February 1989): 307. http://dx.doi.org/10.1016/0003-4975(89)90297-x.

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Дисертації з теми "Endoscopic Laser Surgery"

Hoy, Christopher Luk 1982. "Development of femtosecond laser endoscopic microsurgery." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-2659.

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Femtosecond laser microsurgery has emerged as a remarkable technique for precise ablation of biological systems with minimal damage to their surrounding tissues. The combination of this technique with nonlinear optical imaging provides a means of microscopic visualization to guide such surgery in situ. A clinical endoscope capable of image-guided femtosecond laser microsurgery will provide physicians a means for cellular-level microsurgery with the highest precision. This dissertation focuses the development of a miniaturized fiber-coupled probe for image-guided microsurgery, towards future realization as a clinical endoscope. The first part of the dissertation describes the development of an 18-mm diameter probe. This development includes delivery of femtosecond laser pulses with pulse energy in excess of 1 µJ through air-core photonic bandgap fiber, laser beam scanning by a microelectromechanical system scanning mirror, and development of a new image reconstruction methodology for extracting increased temporal information during Lissajous beam scanning. During testing, the 18-mm probe compares favorably with the state-of-the-art as a microscopic imaging tool and we present the first known demonstration of cellular femtosecond laser microsurgery through an optical fiber. The second part of the dissertation explores further refinement of the design into a streamlined package with 9.6 mm diameter and improved imaging resolution. Study of the optical performance through analytical and computer-aided optical design indicates that simple custom lenses can be designed that require only commercial-grade manufacturing tolerances while still producing a fully aberration-corrected microsurgical endoscope. With the 9.6-mm probe, we demonstrate nonlinear optical imaging, including tissue imaging of intrinsic signals from collagen, using average laser powers 2-3× lower than the current state-of-the-art. We also demonstrate the use of the 9.6-mm probe in conjunction with gold nanoparticles for enhanced imaging and microsurgery through plasmonics. Finally, in the third part of this dissertation, we detail bench-top development of a new clinical application for combined femtosecond laser microsurgery and nonlinear optical imaging: the treatment of scarred vocal folds. We show the utility of femtosecond laser microsurgery for creating sub-epithelial voids in vocal fold tissue that can be useful for enhancing localization of injectable biomaterial treatments. We demonstrate that a single compact fiber laser system can be utilized for both microsurgery and imaging. Furthermore, the proposed clinical technique is shown to be achievable with parameters (e.g., pulse energy, focused spot size) that were found to be attainable with fiber-coupled probes while still achieving ablation speeds practical for clinical use.
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Geraldes. "MEMS Varifocal Mirror for High-Power Laser Focusing." Doctoral thesis, 2019. http://hdl.handle.net/11562/994700.

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Today, lasers are used in many surgical procedures due to their ability of performing precise incisions, and ablations. With the development of fiber-coupled lasers, even minimally invasive procedures started making use of laser tools. However, existing fiber tools do not provide the same performance as traditional laser systems, often causing significantly more tissue carbonization. This can be attributed to the lack of optics in fiber tools, which requires the tip of the fiber to be placed in direct contact with the tissue, increasing the collateral damage of the laser. To avoid this issue, a compact focusing system should be integrated in the fiber tool. However, traditional optical systems based on moving lenses are too large and bulky for that. To solve this problem, this thesis proposes a focusing system based on MEMS deformable mirrors. Using microfabrication methods, we develop a novel MEMS varifocal mirror, designed for focusing high-power laser in a fiber laser system. The design of this mirror is based on state-of-the-art MEMS deformable mirrors, which have been proposed for microscopy applications, with significant adaptations for high-power lasers, including different actuation mechanisms and control strategies. We explore the use of hydraulic actuation to achieve large focal length range, while providing compatibility with high-power laser. The deflection of the mirror is controlled using a feed-forward model, in which parameters are obtained through characterization of the fabrication process. This allows controlling the mirror without a beam splitter or external sensors, which contributes to the miniaturization of the focusing system.

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Bendouah, Zohra. "Implication des biofilms dans la rhinosinusite chronique et l’évaluation des traitements avec un modèle in vitro." Thèse, 2008. http://hdl.handle.net/1866/4358.

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Introduction : La chronicité de la rhinosinusite, sa résistance aux antibiotiques, et ses exacerbations aiguës laissent croire que les biofilms sont impliqués dans la rhinosinusite chronique. Objectifs : Nous avons évalué la capacité des bactéries Pseudomonas aeruginosa, staphylocoques à coagulase négative et Staphylococcus aureus à former des biofilms par un essai in vitro, et si cette capacité de formation a un lien avec l’évolution de la maladie. Nous avons évalué in vitro l’effet de la moxifloxacine, un antibiotique utilisé dans le traitement de la rhinosinusite chronique sur des biofilms matures de Staphylococcus aureus. Méthodes : Trent et une souches bactériennes ont été isolées de 19 patients atteints de rhinosinusite chronique et qui ont subit au moins une chirurgie endoscopique des sinus. L’évolution de la maladie a été notée comme "bonne" ou "mauvaise" selon l’évaluation du clinicien. La production de biofilm a été évaluée grâce à la coloration au crystal violet. Nous avons évalué la viabilité du biofilm après traitement avec la moxifloxacine. Ces résultats ont été confirmés en microscopie confocale à balayage laser et par la coloration au LIVE/DEAD BacLight. Résultat et Conclusion : Vingt deux des 31 souches ont produit un biofilm. La production d’un biofilm plus importante chez Pseudomonas aeruginosa et Staphylococcus aureus était associée à une mauvaise évolution. Ceci suggère un rôle du biofilm dans la pathogenèse de la rhinosinusite chronique. Le traitement avec la moxifloxacine, à une concentration de 1000X la concentration minimale inhibitrice réduit le nombre des bactéries viables de 2 à 2.5 log. Ces concentrations (100 µg/ml - 200 µg/ml) sont faciles à atteindre dans des solutions topiques. Les résultats de notre étude suggèrent que l’utilisation de concentrations supérieure à la concentration minimale inhibitrice sous forme topique peut ouvrir des voies de recherche sur de nouveaux traitements qui peuvent être bénéfiques pour les patients atteints de forme sévère de rhinosinusite chronique surtout après une chirurgie endoscopique des sinus.
Introduction: The role of biofilms in chronic diseases is increasingly recognized. Chronic rhinosinusitis, with its chronic indolent course, resistance to antibiotics, and acute exacerbations, has an evolution that parallels that of other biofilm-related diseases. Objectives: 1-To develop an in vitro method to assess the biofilm formation capacity. 2- To determine whether biofilm-forming capacity of bacteria demonstrated in chronic rhinosinusitis has an impact on persistence of the disease following endoscopic sinus surgery. 3- To determine the in vitro activity of moxifloxacin against Staphyylococcus aureus in biofilm form. Method: Thirty-one bacterial strains recovered from 19 patients with chronic rhinosinusitis at least one year post-endoscopic sinus surgery. Evolution of disease was assessed by questionnaire and endoscopy as favorable or unfavorable. The bacteria were cultured on a 96-well culture plaque and a semi-quantitative method using crystal violet to quantify biofilm production was used. Confirmation of the effect of the antimicrobial agents on viability was performed with confocal laser microscopy, using a LIVE/DEAD BacLight staining. Results: Twenty-two of 31 samples produced a biofilm thicker or equal to the positive control. Biofilm formation was associated with a poor evolution for Pseudomonas aeruginosa and Staphylococcus aureus, but not for coagulase-negative staphylococci. Biofilm treated with moxifloxacin at 1000X (0.1mg/ml – 0.2 mg/ml) gave a 2 to 2.5 log reduction in number of viable bacteria. Conclusion: We have shown that Crystal violet method is able to detect biofilm formation. There is a correlation between in vitro biofilm production by Pseudomonas aeruginosa and Staphylococcus aureus and unfavorable evolution after endoscopic sinus surgery, suggesting a role for biofilm in chronic rhinosinusitis. Increased concentrations of moxifloxacin, easily attainable in topical solutions have a potential role in the management of biofilm infections.

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Книги з теми "Endoscopic Laser Surgery"

M, Shapshay Stanley, ed. Endoscopic laser surgery handbook. New York: Dekker, 1987.

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Poe, Dennis S. Laser-assisted endoscopic stapedectomy: A prospective study. Omaha, NE: Published on behalf of the Triological Society by Lippincott Williams & Wilkins, 2000.

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Carter, Enrique D. Endoscopic laser photocoagulation in the treatment of upper gastrointestinal bleeding. Rockville, MD: U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Services Research and Health Care Technology Assessment, 1987.

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Metson, Ralph. Holmium:YAG laser endoscopic sinus surgery: A randomized, controlled study. [St. Louis, MO]: American Laryngological, Rhinological and Otological Society, 1996.

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M, Watson Graham, Steiner R. 1941-, Pietrafitta Joseph J, and Society of Photo-optical Instrumentation Engineers., eds. Proceedings of lasers in urology, laparoscopy, and general surgery: 21-23-January 1991, Los Angeles, California. Bellingham, Wash., USA: SPIE, 1991.

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S, Sanfilippo J., and Levine R. L, eds. Operative gynecologic endoscopy. New York: Springer-Verlag, 1989.

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YAG laser bronchoscopy. New York: Praeger, 1985.

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T, Brillhart Allen, ed. Arthroscopic laser surgery: Clinical applications. New York: Springer-Verlag, 1995.

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Jain, Nutan. Laparoscopic surgery in infertility and gynecology. New Delhi: Jaypee Brothers Medical Publishers (P) Ltd, 2011.

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Sandomirskiĭ, B. P. Nizkie temperatury i lazery pri lechenii zabolevaniĭ zheludka i dvenadt͡s︡atiperstnoĭ kishki. Kiev: Nauk. dumka, 1989.

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Частини книг з теми "Endoscopic Laser Surgery"

Liang, Marc D. "Temporal Approach to Corrugator Laser Ablation." In Endoscopic Plastic Surgery, 28–35. New York, NY: Springer New York, 1996. http://dx.doi.org/10.1007/978-1-4612-2328-3_6.

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Keum, Han Joong, and Kang Seok Moon. "Endoscopic Lumbar Foraminotomy with Ho:Yag Laser." In Laser Spine Surgery, 53–60. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2206-9_7.

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Buyalos, Richard P. "Principles of Endoscopic Laser Surgery." In Practical Manual of Operative Laparoscopy and Hysteroscopy, 40–48. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1886-9_6.

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Buyalos, Richard P. "Principles of Endoscopic Laser Surgery." In Practical Manual of Operative Laparoscopy and Hysteroscopy, 39–46. New York, NY: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4684-0430-2_5.

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Bae, Junseok. "Transforaminal Endoscopic Thoracic Discectomy with Ho:Yag Laser." In Laser Spine Surgery, 81–89. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2206-9_11.

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Bae, Junseok. "Anterior Endoscopic Cervical Discectomy with Ho:YAG Laser." In Laser Spine Surgery, 113–22. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2206-9_15.

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Kollmer, Charles E. "10.6 μm CO2 Laser Endoscopic Carpal Tunnel Release." In Arthroscopic Laser Surgery, 199–204. New York, NY: Springer New York, 1995. http://dx.doi.org/10.1007/978-1-4612-2468-6_31.

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Choi, Yong Soo. "Posterior Endoscopic Cervical Foraminotomy and Discectomy with Ho:Yag Laser." In Laser Spine Surgery, 105–12. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2206-9_14.

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Spinelli, P., M. Dal Fante, A. Mancini, and G. Casella. "Endoscopic Laser Therapy in Pediatric Gastrointestinal Disorders." In Laser Surgery in Children, 147–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-60276-4_10.

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Smith, Joseph A. "Endoscopic Laser Surgery in Urology: The American Experience." In Medical Laser Endoscopy, 257–68. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0507-8_21.

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Тези доповідей конференцій з теми "Endoscopic Laser Surgery"

Salimbeni, Renzo, Roberto Pini, Matteo Vannini, George Benaim, and Stefano Mattioli. "Endoscopic excimer laser surgery." In Europto Biomedical Optics '93, edited by Nathan I. Croitoru and Riccardo Pratesi. SPIE, 1994. http://dx.doi.org/10.1117/12.167315.

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Fanjul-Vélez, F., and J. L. Arce-Diego. "Optimized Endoscopic Laser Surgery in Colon Tumors." In Frontiers in Optics. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/fio.2016.jth2a.136.

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Pankratov, Michail M., Zhi Wang, Elie E. Rebeiz, Donald F. Perrault, Jr., Stanley M. Shapshay, and Lyon L. Gleich. "Endoscopic diode-laser applications in airway surgery." In OE/LASE '94, edited by R. Rox Anderson. SPIE, 1994. http://dx.doi.org/10.1117/12.184910.

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Spinelli, Pasquale, and Marco D. Fante. "Contact Laser Endoscopic Surgery With Sapphire Micro-Probes." In 1986 Int'l European Conf on Optics, Optical Systems, and Applications, edited by Stefano Sottini and Silvana Trigari. SPIE, 1987. http://dx.doi.org/10.1117/12.937080.

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Inouye, Tetsuzo, Tetsuya Tanabe, Manabu Nakanoboh, Yukio Ohmae, and Masami Ogura. "Endoscopic laser surgery for subglottic and tracheal stenosis." In Photonics West '95, edited by R. Rox Anderson, Graham M. Watson, Rudolf W. Steiner, Douglas E. Johnson, Stanley M. Shapshay, Michail M. Pankratov, George S. Abela, et al. SPIE, 1995. http://dx.doi.org/10.1117/12.209076.

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Minaev, V. P., A. Z. Vinarov, A. M. Dymov, N. I. Sorokin, and V. YU Lekarev. "New laser radiation hydrodynamic effect in endoscopic urological surgery." In 2018 International Conference Laser Optics (ICLO). IEEE, 2018. http://dx.doi.org/10.1109/lo.2018.8435265.

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Roppenecker, Daniel B., Mattias F. Traeger, Jan D. J. Gumprecht, and Tim C. Lueth. "How to Design and Create a Cardan Shaft for a Single Port Robot by Selective Laser Sintering." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87654.

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With the spread of endoscopic interventions the postoperative stress for patients has been reduced clearly. These interventions through natural orifices of the body (Natural orifice transluminal endoscopic surgery: NOTES) need miniaturized instruments with high precision, high range of motion and a high force load transmission. Our aim is to develop a mechatronic, single-port robotic system to guide and move flexible endoscopic instruments and optics inside the body. The system should be adapted to a flexible endoscope and consists of two flexible and actuated end-effectors that carry and manipulate flexible instruments. Due to the flexible end of the structure, laparoscopic single-port surgery through one incision and endoscopic surgery through a natural orifice would be possible. The concepts and prototypes were realized by selective laser sintering (SLS). One way to create flexible structures for a single use robot is to use universal joints assembled together in series. Next, selective laser sintering can now print these parts with the joints already assembled, in one part. There is no need for assembling or adhesive bonding. The final step is to replace the real joints of the cardan shafts with elastic joints. The proposed joints are made by the powder PA 2200 based on nylon. This basic powder is certificated as biocompatible according to ISO 10993-1. The challenge in this new field of printed medical robotics is to define a manufacturing process that enables you to design a part, create it by SLS and get it approved as a medical product.

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Hiki, Yoshiki, and Seigo Kitano. "Present status of endoscopic surgery in Japan: laparoscopic surgery and laparoscopic assisted surgery for gastric cancer." In 2004 Shanghai international Conference on Laser Medicine and Surgery, edited by Jing Zhu. SPIE, 2005. http://dx.doi.org/10.1117/12.639113.

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Masychev, Victor I., Vladislav S. Alejnikov, T. I. Garahschenko, and L. D. Mamedly. "Endoscopic surgery and therapy with pulsed visible laser in vascular surgery and child ENT surgery." In Europto Biomedical Optics '93, edited by Kazuhiko Atsumi, Cornelius Borst, Frank W. Cross, Herbert J. Geschwind, Dieter Jocham, Jan Kvasnicka, Hans H. Scherer, Mario A. Trelles, and Eberhard Unsoeld. SPIE, 1994. http://dx.doi.org/10.1117/12.169132.

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Patel, Snehal, Milind Rajadhyaksha, Stefan Kirov, Yongbiao Li, and Ricardo Toledo-Crow. "Endoscopic laser scalpel for head and neck cancer surgery." In SPIE BiOS. SPIE, 2012. http://dx.doi.org/10.1117/12.909172.

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