Devices for assisting neurosurgical interventions

An IHC system comprising:

• an intermediate head clamp, IHC, support frame comprising a frame base and a moveable member whose position is adjustable and fixable in relation to three orthogonal axes relative the frame base, and the frame base is disposed with one or more couplings for repeatable dismountable attachment of an intermediate head clamp, and the moveable member is disposed with at least one coupling for repeatable dismountable attachment to the dismountable unit, and
• the intermediate head clamp comprising a main body, a holding space at least partially surrounded by the main body dimensioned to receive the head of the subject, a plurality of clamps each configured for advancement into the holding space or withdrawal therefrom and for contacting the part of the head of the subject, wherein deployment of the plurality of clamps fixes a pose of the main body relative to the head of the subject, the having a centre for coinciding with a mid commissural point in the brain of the subject, and
• the dismountable unit, wherein the dismountable unit comprises:
• at least one moveable member, MM, hub assembly configured for dismountable attachment in fixed relation to the coupling of the moveable member and for dismountable attachment of at least one circle-arc shaped MM hub supporting rail, wherein the MM hub is configured to allow rotation of the MM hub supporting rail around a rail axis of rotation that crosses a target of treatment of the subject,
• at least one MM hub supporting rail.

An intermediate head clamp comprising:

• a main body, a holding space at least partially surrounded by the main body dimensioned to receive the head of the subject, and
• a plurality of clamps wherein deployment of the plurality of clamps fixes a pose of the main body relative to the head of the subject,
• wherein
• at least one of the plurality of clamps comprises a moveable shaft configured for advancement into the holding space (322) or withdrawal therefrom and for contacting the part of the head of the subject, and a shaft-receiving body for receiving and supporting the moveable shaft;
• the shaft-receiving body is rotatably attached to the main body for adjustment of the direction of the moveable shaft relative to the main body.