Needle guide system and medical intervention system

A medical intervention system, comprising:

• a puncture device, configured to carry out a medical intervention treatment;
• an ultrasound transducer, configured to obtain an ultrasound image;
• a first orientation detector, disposed on the puncture device;
• a second orientation detector, disposed on the ultrasound transducer;
• a proximity detector, disposed on at least one of the puncture device and the ultrasound transducer and configured to obtain a relative distance between the puncture device and the ultrasound transducer;
• a display device, configured to display the ultrasound image;
• and
• a processor, coupled to the ultrasound transducer, the first orientation detector, the second orientation detector, the proximity detector, and the display device, and configured to:
• obtain a spatial relationship between the puncture device and the ultrasound transducer by using the first orientation detector, the second orientation detector, and the proximity detector, comprising:
• obtaining a first orientation from the first orientation detector and a second orientation from the second orientation detector;
• and
• calculating a position of inserting the puncture device relative to the ultrasound probe on a body surface by using the relative distance;
• predict a needle trajectory of the puncture device in the ultrasound image based on the first orientation, the second orientation and the position of inserting the puncture device on the body surface, and
• display the predicted needle trajectory in the ultrasound image by using the display device.