AUXILIARY GUIDING AND POSITIONING APPARATUS FOR CT-GUIDED PUNCTURE

The present disclosure discloses a guiding and positioning device for assisting in computed tomography-guided needle biopsy (CT-GNB), including: a control mechanism and an actuating mechanism, where the actuating mechanism includes a base (1) and a support frame (2); one of the two head ends of the support frame (2) is provided with a locking mechanism (4); a positioning apparatus includes a first guide rail (7) in an arc shape, and the first guide rail (7) is slidably provided with a guiding apparatus (8) configured to guide different puncture angles in a same plane; the guiding apparatus (8) includes a deflection drive mechanism (6) slidable along the first guide rail (7), and a first translation mechanism (87) and a second translation mechanism (88) that are arranged perpendicular to each other; and the second translation mechanism (88) is slidably provided with a guiding mechanism (89) configured to guide a puncture through a visible laser space. The guiding and positioning device can be used in combination with the existing test device, such as a computed tomography (CT) device, a positron emission tomography-computed tomography (PET-CT) device, and a magnetic resonance imaging (MRI) device. With puncture needle channel information determined according to an image acquired by an imaging device, the guiding and positioning device can accurately indicate a spatial position to assist in an operation of a doctor, thereby avoiding inaccuracies and errors in experience-based manual punctures.