Evaluation of the Efficacy of Intelligent-Assisted Ultrasound-Guided Brachial Plexus Nerve Blockade

INTERVENTION: Group T:Performing ultrasound‐guided interscapular brachial plexus nerve block using a conventional ultrasound machine;Group A:Performing ultrasound‐guided interscapular brachial plexus nerve block using an ultrasound machine with AI‐assisted neural recognition; CONDITION: Upper Limb Fractures Meeting the Criteria for Intermuscular Plexus Block Anesthesia PRIMARY OUTCOME: Total operating time; SECONDARY OUTCOME: Neural recognition accuracy rate;Incidence of nerve block complications;Vital signs during anaesthesia;Number of punctures (single‐puncture success rate);Evaluation of Anaesthetic Quality During Surgery and Success Rate of Brachial Plexus Nerve Block Anaesthesia;Rescue analgesic dose;Evaluation of Movement Restriction;Sensory Numbness Assessment; INCLUSION CRITERIA: 1.ASA I–III; aged 18–85 years; BMI 21–28 kg/m²; no gender restrictions; 2.Patients undergoing shoulder or upper limb surgery for whom an intermuscular groove brachial plexus nerve block is sufficient to provide adequate analgesia for the procedure. 3.Able to cooperate with the research process and post‐operative follow‐up; 4.Voluntarily participate and sign an informed consent form;