Reuse of a Reversed “Bone Pad” to Perforate Incompletely Penetrated Burr Holes Created by Automatic-Releasing Cranial Perforators

Murai, Yasuo; Ishisaka, Eitaro; Tsukiyama, Atsushi; Nakagawa, Shunsuke; Matano, Fumihiro; Tateyama, Kojiro; Morita, Akio

doi:10.1093/ons/opw043

Cited by 2 publications

(1 citation statement)

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“…For the mechanical decoupling to be successful, the inner surface of the cranium must be perpendicular to the drilling axis, making this tool inadvisable for use in scenarios where the cranium is uneven or fractured. In addition, tool geometry, clutch mechanism design, the choice of the drilling site and the experience level of the surgeon have been noted to play a major role in plunging [8], [9]. To date, attempts to reduce the rate of plunging can be separated into two categories.…”

Section: Introductionmentioning

confidence: 99%

Cranial Perforation Using an Optically-Enhanced Surgical Drill

Grygoryev¹,

Komolibus

Gunther

et al. 2020

IEEE Trans. Biomed. Eng.

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The design of mechanically clutched cranial perforators, used in craniotomy procedures, limits their performance under certain clinical conditions and can, in some cases, impose the risk of severe brain injury on patients undergoing the procedure. An additional safety mechanism could help in mitigating these risks. In this work, we examine the use of diffuse reflectance spectroscopy as a potential fallback mechanism for near real-time detection of the bone-brain boundary. Monte Carlo simulation of a two layer model with optical properties of bone and brain at 530 and 850 nm resulted in a detectable change in diffuse reflectance signal when approaching the boundary. The simulated results were used to guide the development of an experimental drill control system, which was tested on 10 sheep craniums and yielded 88.1% success rate in the detection of the approaching bone-brain boundary.

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Section: Introductionmentioning

confidence: 99%