ROTATIONAL POSITION DETERMINATION APPARATUS

摘要

The invention relates to a rotational position determination apparatus (15) for determining an entry rotational position, which defines a rotational position of an insertion device like a stent at an entry site (5), such that a navigation of the insertion device from the entry site to a target site (6) along an inner path (8) results in a rotational position of the insertion device at the target site being equal to a desired target rotational position based on a representation of the inner path and the desired target rotational position. If the insertion device is arranged in the determined entry rotational position at the entry site and then navigated to the target site, it is therefore not necessary to rotate the insertion device at the target site, i.e. it is not necessary to use a technically complex interventional device for rotating the insertion device at the target site.

主权项

1. A rotational position determination apparatus characterized in that the rotational position determination apparatus is adapted to determining a rotational position of an insertion device for being inserted into an object and for being navigated along an inner path within the object from an entry site to a target site within the object, the rotational position determination apparatus comprising:
an inner path providing unit for providing a representation of the inner path within the object, a target rotational position providing unit for providing a desired target rotational position of the insertion device at the target site, an entry rotational position determination unit for determining an entry rotational position, which defines a rotational position of the insertion device at the entry site, such that a navigation of the insertion device from the entry site to the target site along the inner path results in a rotational position of the insertion device at the target site being equal to the desired target rotational position based on the representation of the inner path and the desired target rotational position.