Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 36 for “"Endoscope"”.
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Multi-link robotic endoscope with haptic feedback
… the design of a multi-link continuum robotic endoscope and the design of a single-axis haptic controller for navigation. The multi-link design presented in this thesis is modular such that the length of the endoscope can be easily modified for different applications. The final prototype …
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The Active Wave-front Sampling based 3D endoscope
… of a surgical scenario. This AWS based stereo-endoscope (referred to as the AWS-scope) is shown to possess optical attributes that are superior to those of the current industry standard. Quantified 3D data generated using this AWS-scope is used to create enhanced synthetic stereo image pairs …
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Endoscope Use to Improve Students’ Periodontal Debridement Skills and Self-Efficacy
… this study was to determine if using the dental endoscope altered dental hygienists’ perception of periodontal disease, changed their instrumentation skills, helped increase self-efficacy, and if multiple uses had an effect on participants’ self-efficacy in debridement skills. Methods: This …
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Design of an endoscope lens shielding device for use in laparoscopic procedures
… without requiring removal or reinsertion of the endoscope.
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Development of an Endoscope Propulsion System to Aid in the Colonoscopy Procedure
… and the risk of procedural complications. The Endoscope Propulsion System, or EPS, will assist in the colonoscopy procedure. This device will enable a lesser skilled physician to effectively perform the colonoscopy, thus increasing the procedure's availability. In addition to requiring less …
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Near-infrared imaging of artificial enamel caries lesions with a scanning fiber endoscope
… caries lesions. A miniature scanning fiber endoscope (SFE) operating at near-infrared (NIR) wavelengths was developed and used in this study to test whether the device could be used to discriminate demineralized enamel from sound enamel. Varying depths of artificial enamel caries lesions …
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ENDOSCOPE-ASSISTED EVACUATION OF INTRACEREBRAL HEMATOMAS (ICH)//Ендоскоп-асистирана евакуация на интрацеребрални хематоми (ICH)
Интрацеребралните хематоми (ИЦХ) са социално значимо заболяване с висока смъртност или тежка инвалидизация. Класическият метод за хирургично лечение на ИЦХ е широката краниотомия/ краниектомия с открита евакуация. Като възможна алтернатива се обсъжда ендоскоп-асистираната евакуация на ИЦХ. …
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Removal of Esophageal Blunt Foreign Bodies by Using a Foley Catheter, Esophagoscope and Endoscope
I. 서론 1 II. 연구대상 및 방법 2 III. 결과 5 A. 환자의 연령 및 성별분포 5 B. 내원 경위 및 내원 경로 7 C. 이물이 걸린 후 내원까지의 시간 8 D. 이물의 크기와 종류 8 E. 이물의 위치 10 F. 대기시간 및 시행시간 10 G. 성공률 12 H. 술기의 시행자 13 I. 진정제 투여율 13 J. 합병증 발생률 13 K. 입원 비율 14 L. 총 진료 비용 14 IV. 고찰 15 V. 결론 23 참고문헌 24 ABSTRACT 26
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Development of small-diameter endoscope capable of high-resolution visualization and laser therapy through a shared optical aperture
… cost. An enabling tool for MIS procedures is the endoscope, which frequently hosts technologies to illuminate, visualize, and apply a phototherapy laser to a surgical scene. Unfortunately, some candidate MIS procedures are not presently possible due to the insufficiently small diameter of …
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Design and Development of a Minimally Invasive Endoscope: Highly Flexible Stem with Large Deflection and Stiffenable Exoskeleton Structure
… treating the colon without surgery, but current endoscope designs still cause a degree of pain and injury to the colon wall. The most common colonoscopies are long tubes inserted through the rectum, with locomotion actuators, fiber optic lights, cameras, and biopsy tools on the distal end. The …
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Image Registration to Map Endoscopic Video to Computed to mography For Head and Neck Radiotherapy Patients
… and neck cancer without physical tracking of the endoscope during the examination. Endoscopy-CT registration would provide a clinical tool that could be used to enhance the treatment planning process and would allow for new methods to study the incidence of radiation-related toxicity.</p> …
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Entwicklung und Anwendung mobiler NMR-Sonden
… first part of this thesis the concept of an NMR endoscope for use in medical examinations and minimal invasive interventions has been investigated. An operative NMR endoscope had been developed and test measurements had been performed successfully. The experiments prove that the radial measure …
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Novel Optical Endoscopes for Early Cancer Diagnosis and Therapy
… were focused on the development of flexible endoscopes for detection of dysplasia in Barrett’s oesophagus. To enable molecular imaging with a newly discovered targeted fluorescent contrast agent, a bimodal endoscope capable of capturing NIR fluorescence and white light reflectance was …
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Ultrahigh-Resolution Endoscopic Optical Coherence Tomography for In Vivo Mouse Colonoscopy
… bandwidth of the system. An achromatized endoscope design was demonstrated that achieved axial resolution of 2.3 mum in tissue and 4.4 mum lateral spot diameter with 101 dB sensitivity when interfaced with a time domain OCT system utilizing a 10-femtosecond laser (bandwidth=150 nm FWHM, …
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New approaches for optical and microoptical diagnostics in IC engines
… in a commercial IC en-gine. The hybrid UV endoscope (combining refractive and diffractive optical elements) has an about ten times better light collection efficiency than a commercial UV endoscope with simul-taneous high spatial resolution over a broadband spectral range. Its performance is …
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The Chondroid Conundrum: Transpharyngeal Removal of Guttural Pouch Chondroids in Horses
… limitations. Surgical laser passed through an endoscope (medical camera) allows minimally invasive surgery of the guttural pouches. We performed laser surgery on cadaver horse heads to create access to the GP, then evaluated our ability to remove chondroid-like beads from the GP using a …
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3D ENDOSCOPY VIDEO GENERATED USING DEPTH INFERENCE: CONVERTING 2D TO 3D
… was developed to convert raw 2-dimensional endoscope videos into 3-dimensional view. Minimally invasive surgeries aided with 3D view of the invivo site have shown to reduce errors and improve training time compared to those with 2D view. The novelty of this algorithm is that two cues in the …
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Novel endoscopes for microscopic assessment of airway clearance using micro-optical coherence tomography
… was incorporated into miniaturized common-path endoscopes and mucociliary transport was visualized in vivo for the first time. The first-generation Micro-OCT probe had a rigid design with outer diameter of 4 mm and a two-prism configuration providing beam splitting and sample beam shaping into …
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Miniature Microscope Design And Construction Based On Tilted Rotationally Asymmetric Printed Lenses
… An alternative is in vivo microscopy using an endoscope or microendoscopy. This dissertation describes the design, construction, and evaluation of a miniature microscope or microendoscope based on new microfabrication technologies.All components typically found in a traditional bench-top …
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