Results 71 to 80 of about 23,701 (280)

Best Practices for Measuring the Modulation Transfer Function of Video Endoscopes

open access: yesSensors
Endoscopes are crucial for assisting in surgery and disease diagnosis, including the early detection of cancer. The effective use of endoscopes relies on their optical performance, which can be characterized with a series of metrics such as resolution ...
Quanzeng Wang   +3 more
doaj   +1 more source

Unsupervised Odometry and Depth Learning for Endoscopic Capsule Robots

open access: yes, 2018
In the last decade, many medical companies and research groups have tried to convert passive capsule endoscopes as an emerging and minimally invasive diagnostic technology into actively steerable endoscopic capsule robots which will provide more ...
Almalioglu, Yasin   +6 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Examination of endoscopic intracanal observation with an ultrafine‐diameter scope

open access: yesDEN Open
Objectives The endoscopic channel can be damaged by instruments during use and cleaning, leading to contamination, infection, and increased repair costs. However, few devices are available to observe the inside of the endoscopic channel.
Takeshi Jinno   +7 more
doaj   +1 more source

Interpretation of Chinese industry standard Evaluation method of endoscopic sterilization effect (WS/T 10015—2024)

open access: yesSterile Supply
Implemented on March 1, 2025, the Chinese industry standard Evaluation method of endoscopic sterilization effect (WS/T 10015—2024) aims to standardize the evaluation methods for the sterilization efficacy of endoscopes and to detect and evaluate the ...
Yiming Shen   +6 more
doaj   +1 more source

Ureteroscopic treatment of larger renal calculi (\u3e2 cm). [PDF]

open access: yes, 2012
OBJECTIVES: To evaluate the current status of ureteroscopic lithotripsy (UL) for treating renal calculi of \u3e2 cm, as advances in flexible ureteroscope design, accessory instrumentation and lithotrites have revolutionised the treatment of urinary ...
Bagley, Demetrius H.   +2 more
core   +1 more source

Construction of extended 3D field of views of the internal bladder wall surface: a proof of concept

open access: yes, 2016
3D extended field of views (FOVs) of the internal bladder wall facilitate lesion diagnosis, patient follow-up and treatment traceability. In this paper, we propose a 3D image mosaicing algorithm guided by 2D cystoscopic video-image registration for ...
Ben-Hamadou, Achraf   +2 more
core   +3 more sources

Recent finding and new technologies in nephrolithiasis: a review of the recent literature [PDF]

open access: yes, 2013
This review summarizes recent literature on advances regarding renal and ureteral calculi, with particular focus in areas of recent advances in the overall field of urolithiasis.
Bove P   +6 more
core   +1 more source

Food‐Based Edible Wireless Sensing Device with Isotropic Electromagnetic Response for Gastrointestinal Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A sensor is fabricated that reflects electromagnetic waves wirelessly using only edible materials. The substrate is made of edible materials such as sugar and starch, and the electrodes are made of gold. This sensor has isotropic electromagnetic wave characteristics in response to rotation.
Ryosuke Matsuda   +5 more
wiley   +1 more source

Realistic endoscopic image generation method using virtual-to-real image-domain translation

open access: yesHealthcare Technology Letters, 2019
A realistic image generation method for visualisation in endoscopic simulation systems is proposed in this study. Endoscopic diagnosis and treatment are performed in many hospitals.
Masahiro Oda   +6 more
doaj   +1 more source

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