The present invention is suitable for medical applications that allow the most rapid, accurate and safe positioning of coronary stents in the case of simple or complex coronary disease lesions and stents of the kidneys and visceral arteries. The claimed device comprises a runner having a housing formed of a front portion and a rear portion connected to each other by slots extending in the circumferential direction such that the rear portion of the housing is rotatable, a cap screwed with a runner thread, and a rotation about an axis thereof. Possibly a collet with hooks received in the runner, and a retainer with ear portions, the runner cap being disposed in the retainer. When the device is ready for use, the coronary stent carried by the delivery system is first gradually inserted into the device, and then the coronary stent on the delivery system is manually advanced to the affected part of the coronary artery so that the delivery system is within the device. It is fixed and positioned in the coronary artery by rotating the back of the housing. In a second exemplary embodiment, the device comprises: a runner having a housing formed of a front portion and a rear portion connected to each other by slots extending in the circumferential direction such that the rear portion of the housing is rotatable, and a cap screwed with the runner threads； And a retainer having an ear and a clamp formed integrally with the runner and received in the runner, the runner cap being disposed inside the retainer. In a third exemplary embodiment, the device comprises: a runner having a housing formed of a front portion and a rear portion connected to each other by slots extending in the circumferential direction such that the rear portion of the housing is rotatable, and a cap screwed with the runner thread； And a retainer having a clamp and received in the runner so as to be rotatable about an axis thereof, the retainer cap being disposed inside the retainer. In a fourth exemplary emb
