![]() Bayonet shape allows removing the surgeon’s hands from the view, improving the tip visualization. The single handle occupies less space than the double one. The angled tip is better visible than the straight one. In order to fit the conditions of the deep and narrow operative field, an ideal microneurosurgical instrument must have a precise angled functional tip and a single, bayonet, and round handle. However, the usual pen can’t be used for microneurosurgical training due to the following disadvantages: a very low grip area and a short and straight corpus, restricting the view of the pen tip. This article aims to describe a novel writing instrument suitable for everyday microneurosurgical training and to demonstrate the technique for its use. ![]() This similarity could provide a unique opportunity for present and future neurosurgeons - to train virtually at any time or place. It is well known that the way of holding and moving most of the surgical instruments is very similar to the technique of writing or drawing by the pen. The answer lies in the field of calligraphy. However, this is unaffordable for most neurosurgeons due to the necessity of attending a special working place (operative theatre or laboratory) with manifold expensive equipment (microscope, different microinstruments, suture materials, simulators, etc.). High-level microneurosurgical techniques, such as operations on deep brain structures, require hard, long, and unstoppable training. This simple and low-cost instrument can make the microneurosurgical training available for everyone, at every time and place. Given a lot of similarities between the techniques of microneurosurgery and calligraphy (fine hand movements, working pose, method of controlling the instruments, space management, breathing, psychological state), writing or drawing something using Calamus simulates a crucial neurosurgical skill - working in a deep and narrow operative field (skull base, brainstem, etc.), wherein the quality of technique is objectively reflected by the inky trail. It includes a single bayonet and round handle, a curved tip, and a replaceable refill. Calamus is a pen with the anatomy of microneurosurgical instruments. The author proposes Calamus - a novel tool, which may solve this problem. However, it requires a special working place and a lot of expensive equipment, which dramatically decreases the training availability. The only way to stay ahead is to constantly train. Microneurosurgery is Sisyphean labor: dexterity hardly comes and easily goes.
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