A newly developed 8K ultra‐high‐definition video microscope for microsurgery

Kobayashi, Eiji; Yamashita, Hiromasa

doi:10.1002/micr.30551

Cited by 6 publications

(9 citation statements)

References 4 publications

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“…Our results show a detailed report of the mechanism of a new 8K-UHD video microscope [5] that combines 8K-UHD digital camera technology with optical lenses, which we introduced in a previous 'Letter to the Editor'. As shown in Table 2, there are increasing reports using digital microscope with 4K-3D camera since 2018 [2,10,11].…”

Section: Discussionmentioning

confidence: 72%

“…Furthermore, active hands-on uptake is also progressing [22]. With the improvement of ultra-high-quality digital images featuring this type of pseudo-stereoscopic vision, brought about by its clinical application by numerous experts, there is the potential to create a new surgical area that transcends conventional optical microscope images [5].…”

Section: Discussionmentioning

confidence: 99%

“…This initial trial of 8K-UHD microscope could not be applied in supermicrosurgery. Thus, we have improved the quality of microsurgery by the introduction of a new heads up 8K-UHD surgical system [5]. Herein, we show the mechanisms of this next-generation technology that makes optical improvements to the electronic image input data, resolving the initial drawback.…”

Section: Introductionmentioning

confidence: 93%

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Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Yamashita

Kobayashi

2021

Heliyon

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The practical application of microscopes using 8K ultra-high definition (UHD) technology is progressing. However, due to insufficiencies in factors such as luminous intensity and stereopsis, it has not been possible to achieve sufficient image quality for close observation of submillimeter order microlymphatic anastomosis using a combination of 8K-UHD cameras with a rigid endoscope. We have improved the quality of microsurgery by the introduction of a new heads up 8K-UHD surgical system. Herein, we show the mechanisms of this next-generation technology that makes optical improvements to the electronic image input data, resolving the initial drawback. We have developed a new 8K-UHD digital microscope system with digital zooming to enable maximum 300X magnification of the surgical field. This system has specific lighting settings for shadows dropped in surgical field to expand the three-dimensional effect while still being a monocular camera. The original mechanism and design enable the increase of the depth of field with optimal angles between the imaging direction and approaching direction towards the surgical field. Assessment during a pre-clinical trial using rats demonstrated that it is possible to perform microlymphatic anastomosis in a heads-up position with a 70-inch 8K-UHD monitor and the 8K-UHD monocular camera system. Performing supermicrosurgery is difficult with conventional surgical microscopes. Our results illustrate the application of this new 8K-UHD microscope system to this new field.

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Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

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Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Yamashita

Kobayashi

2021

Heliyon

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“…This surgical technology has been expanding its application range to maxillofacial surgery, head and neck surgery, gynaecology, ophthalmology, neurosurgery, plastic surgery and transplant surgery. [1][2][3] Recently, robot-assisted supermicrosurgery 4 and the high-performance video microscope 5 have also been introduced.…”

Section: Introductionmentioning

confidence: 99%

Development of a microsurgery‐assisted robot for high‐precision thread traction and tension control, and confirmation of its applicability

Hangai

Nozaki

Soma

et al. 2020

Robotics Computer Surgery

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Background Microsurgery requires high skills for suturing using fragile threads, often within narrow surgical fields. Precise tension is required for good healing and to avoid the risk of thread breakage. Methods To meet the demands, we developed a novel assist robot utilizing high‐precision sensorless haptic technology. The robot adopts a cable‐driven mechanism to maintain a distance from the surgical area and enhances compatibility with surgical equipment such as microscopes. The robot performance was verified through in vitro and in vivo experiments using a rat model. Results The realization of precise tension control was confirmed in both experiments. In particular, in the in vivo experiments, the developed robot succeeded to produce a knot with an accurate tension of 0.66% error. Conclusions The developed robot can realize to control traction force precisely. This technology might open up the window for a full assist robot for microsurgery with haptic feeling.

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“…Pseudo-lymphatic vessel anastomosis was performed under a new 8K video microscope that we developed earlier ( Figure 1A) (Kobayashi & Yamashita, 2020). The size of the lumen of an artificial lymphatic vessel was 0.3-0.4 mm, and its outer diameter was 0.5-0.6 mm, with a high degree of softness, closely resembling the lymphatic vessels of a living body.…”

mentioning

confidence: 99%

A training tool for lymphatic vessel anastomosis in supermicrosurgery: An ultrafine polyvinyl alcohol tube

Kobayashi

Yamashita

2020

Microsurgery

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A newly developed 8K ultra‐high‐definition video microscope for microsurgery

Cited by 6 publications

References 4 publications

Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Development of a microsurgery‐assisted robot for high‐precision thread traction and tension control, and confirmation of its applicability

A training tool for lymphatic vessel anastomosis in supermicrosurgery: An ultrafine polyvinyl alcohol tube

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