METHOD OF COMBINED DISTAL RADIAL AND DISTAL ULNAR ARTERIAL APPROACHES FOR PERFORMING X-RAY ENDOVASCULAR INTERVENTIONS ON ONE HAND Russian patent published in 2025 - IPC A61M25/01 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to vascular surgery. X-ray endovascular intervention is performed on one arm in stages. Stage 1: preoperative ultrasound control for patency is performed, and puncture points and diameters of radial artery in the area of anatomical snuffbox or on the back of the hand and ulnar artery on the palmar surface of the hand below the distal palmar fold are determined. Stage 2: radial artery is punctured on the pretreated surgical site under local anaesthesia without incising the skin and soft tissues with 22G needle in the area of the anatomical snuffbox or on the back of the hand in the intermetacarpal space between the second metacarpal bone and the thumb extensor tendon and introducer 6F corresponding to a diameter of the radial artery is inserted along wire of 0.018 inches. Stage 3: on the pre-treated surgical site under local anaesthesia without incision of the skin and soft tissues with 22G needle, the ulnar artery is punctured in a projection-anatomical manner below the level of the palmar carpal ligament on the palmar surface of the hand at the point where the ulnar artery exits from the ulnar canal and introducer 6F, corresponding to diameter of ulnar artery, is inserted along wire 0.018 inches. Stage 4: radiopaque preparation is introduced under X-ray control, and patency of radial and ulnar arteries is assessed after catheterization of the investigated vascular system through introducer 6F installed in places of distal radial and distal ulnar arterial approaches. Stage 5: haemostasis is performed with applying a pressure bandage within the distal radial and distal ulnar arterial approaches after removing introducer 6F simultaneously. Stage 6: puncture points within the distal radial and distal ulnar approaches are monitored by palpation of ulnar and radial pulsations on the hand, and ultrasonic control of blood flow in the hand is performed on the following day after the surgery.

EFFECT: method enables to preserve patency of both radial and ulnar arteries, which enables to reduce injuries for their repeated use, since it does not require making an incision at the catheterisation site.

1 cl, 9 dwg