| 摘要 |
FIELD: medicine.SUBSTANCE: group of inventions refers to medicine. A device for prove movement comprises an elongated flexible tube limiting a central cavity adequately sized to be placed into a biological or construction tract, and having a proximal end and a distal end; a drive mechanism coupled with the proximal end; a fluid column extending in the central cavity from the proximal to distal end; and a displacement unit at the distal end and promoting a proximal movement of the fluid column in response to a distal movement of the fluid column. The drive mechanism is provided to make the fluid column reciprocate in the tube to supply a forward pulse to the tube and thereby to promote the movement of at least the distal end of the tube in the tract, when at least the distal end is found within the tract. What is disclosed is the method for the probe movement implemented by the above device.EFFECT: providing the distant control of the probe movement.15 cl, 44 dwg |
