US Patent 11911068 Positioning device for medical devices

The present disclosure is directed to a positioning device for insertion into a patient. The device includes an outer sheath having an external thread on an outer surface. The device also includes a removable inner cannula for insertion into the outer sheath. The cannula has a penetrating end at its insertion end. It may also include a locking device for locking the inner cannula to the outer sheath. The device may be a pneumothorax drainage device.