Application of wireless electrical non-fiberoptic endoscope: Potential benefit and limitation in endoscopic surgery

Chen, Chih‐Hao; Chang, Ho; Liu, Tsang-Pai; Huang, Tun‐Sung; Chen, Chao-Hung

doi:10.1016/j.ijsu.2015.05.003

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The application of wireless transmission in rigid endoscopy has been largely neglected. One exception is a paper by Chen et al [5] who described the development of a wireless "electrical non-fiberoptic endoscope". They tested the wireless laparoscope in an animal model and noted that its feasibility and safety and postulated that wireless scopes may have a role in endoscopic surgery in the future.…”

Section: Discussionmentioning

confidence: 99%

“…African Journal of Urology *Correspondence: j.lazarus@uct.ac.za Division of Urology, University of Cape Town, Cape Town, South Africa be overcome. The literature includes description of a wireless laparoscope [5], devices which replace the traditional endoscope camera with a smart phone [6], robotassisted rigid and flexible endoscopy [7] and miniature wireless "capsule" endoscopy for the specific application of gastrointestinal survey [8].…”

Section: Open Accessmentioning

confidence: 99%

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A low-cost wireless endoscope camera: a preliminary report

Lazarus

Ncube

2021

Afr J Urol

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Background Technology currently used for surgical endoscopy was developed and is manufactured in high-income economies. The cost of this equipment makes technology transfer to resource constrained environments difficult. We aimed to design an affordable wireless endoscope to aid visualisation during rigid endoscopy and minimally invasive surgery (MIS). The initial prototype aimed to replicate a 4-mm lens used in rigid cystoscopy. Methods Focus was placed on using open-source resources to develop the wireless endoscope to significantly lower the cost and make the device accessible for resource-constrained settings. An off the shelf miniature single-board computer module was used because of its low cost (US$10) and its ability to handle high-definition (720p) video. Open-source Linux software made monitor mode (“hotspot”) wireless video transmission possible. A 1280 × 720 pixel high-definition tube camera was used to generate the video signal. Video is transmitted to a standard laptop computer for display. Bench testing included latency of wireless digital video transmission. Comparison to industry standard wired cameras was made including weight and cost. The battery life was also assessed. Results In comparison with industry standard cystoscope lens, wired camera, video processing unit and light source, the prototype costs substantially less. (US$ 230 vs 28 000). The prototype is light weight (184 g), has no cables tethering and has acceptable battery life (of over 2 h, using a 1200 mAh battery). The camera transmits video wirelessly in near real time with only imperceptible latency of < 200 ms. Image quality is high definition at 30 frames per second. Colour rendering is good, and white balancing is possible. Limitations include the lack of a zoom. Conclusion The novel wireless endoscope camera described here offers equivalent high-definition video at a markedly reduced cost to contemporary industry wired units and could contribute to making minimally invasive surgery possible in resource-constrained environments.

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Section: Discussionmentioning

confidence: 99%

Section: Open Accessmentioning

confidence: 99%

A low-cost wireless endoscope camera: a preliminary report

Lazarus

Ncube

2021

Afr J Urol

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“…The multiple cables can tangle together in the operative field, leading to the inconvenience of manipulation for operators and increased safety hazards such as conflagration [ 4 ]. In addition, optic fibres can be easily damaged by inadvertent dropping or frequent pulling and causing declined efficiency of lightening [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and application of a wireless high‐definition endoscopic system in urological surgeries

Xu²,

et al. 2022

BJU International

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Objective To introduce a wireless high‐definition endoscopic system (WHES) and compare it with a Storz high‐definition (HD) system for image resolution, colour resolution, weight, and costs. Materials and Methods The WHES incorporated a portable light‐emitting diode light source and a wireless camera module, which can be compatible with different types of endoscopes. Images were wirelessly transmitted to a monitor or mobile platform such as smartphone through a receiver. The International Standards Organization 12233 resolution chart image was used for the comparison of image resolution and Munsell Colour Checker Chart for colour resolution. In all, 38 endourologists used a Likert questionnaire to blindly evaluate cystoscopic images from a patient with haematuria. The surgical team was asked about the overall performance of the WHES in 20 laparoscopic adrenalectomies using a unvalidated subjective survey. Results There was no difference in image resolution between the two systems (5.82 vs 5.89 line pairs/mm). Without lens and respective light sources, there were better purple (ΔE = 21.48 vs 28.73), blue (ΔE = 34.88 vs 38.6) and red colour resolution (ΔE = 29.01 vs 35.45) for the WHES camera (P < 0.05), but orange (ΔE = 43.45 vs 36.52) and yellow (ΔE = 52.7 vs 35.93) resolutions were better for the Storz HD camera (P < 0.05). Comparing the WHES to a Storz laparoscopic system, the Storz system still had better resolution of orange and yellow, while the resolution of purple, blue, and red was similar for the two systems. The expert comments on resolution, brightness, and colour for cystoscopy were not statistically different, but the ergonomics score for the WHES was higher (3.7 vs 3.33, P = 0.038). The overall cost of the WHES was $23 000–25 000 compared with $45 000–50 000 for a Storz system. There were 100% general satisfaction for the WHES in the survey. Conclusion We developed a new WHES that provides the same resolution images as a Storz laparoscopic system and acceptable colour resolution with the advantages of wireless connection, small volume, low cost, portability, and high‐speed wireless transmission.

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Wireless subcutaneous power supplies for recharging implanted electronic devices

Lyu,

Chen,

Ding

et al. 2024

Device

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Application of wireless electrical non-fiberoptic endoscope: Potential benefit and limitation in endoscopic surgery

Abstract: Wireless modules in the design of rigid endoscope may be a plausible option with good acceptability.

Cited by 6 publications

References 14 publications

A low-cost wireless endoscope camera: a preliminary report

A low-cost wireless endoscope camera: a preliminary report

Fabrication and application of a wireless high‐definition endoscopic system in urological surgeries

Wireless subcutaneous power supplies for recharging implanted electronic devices

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