Patent ID: 11911052
Assignee: TERUMO KABUSHIKI KAISHA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A treatment method for treating a patient having a lesion area in a lower limb artery of a body of the patient, the patient having a first arm and a second arm, the treatment method comprising:
introducing a first catheter into an artery of the first arm of the patient;
advancing the first catheter, which has been introduced into the artery of the first arm of the patient, in the body of the patient to approach the lesion area from above the lesion area and to position a distal portion of the first catheter adjacent the lesion area in the lower limb artery and upstream of the lesion area;
introducing a second catheter into an artery of the second arm of the patient;
advancing the second catheter, which has been introduced into the artery of the second arm of the patient, in the body of the patient to approach the lesion area from above the lesion area and to position a distal portion of the second catheter adjacent the lesion area in the lower limb artery and upstream of the lesion area;
introducing a balloon catheter into a lumen in the first catheter or into a lumen in the second catheter while the distal portion of the first catheter and the distal portion of the second catheter are upstream of the lesion area and advancing the balloon catheter along the lumen to position a distal end portion of the balloon catheter outside and distally beyond the lumen;
treating the lesion area by enlarging a hole in the lesion area through expansion of a balloon of the balloon catheter that is positioned outside the lumen to bring the balloon into contact with the lesion area, the treating of the lesion area occurring while the distal portion of the first catheter and the distal portion of the second catheter are upstream of the lesion area, the treating of the lesion area producing emboli or cholesterol crystals;
the treating of the lesion area being carried out after the advancing of the first catheter to the position adjacent the lesion area and after the advancing of the second catheter to the position adjacent the lesion area; and
creating suction in the lumen of the second catheter while the distal portion of the first catheter and the distal portion of the second catheter are positioned in side-by-side relation to one another and are both facing in a common direction toward the lesion area to draw into the lumen of the second catheter the emboli or cholesterol crystals that are between the balloon that is in contact with the lesion area and an opening at a distal end of the second catheter.