Patent ID: 6814751
Filing Date: 2004-11-09
Classification: A61B,A61F

Abstract:
A graft delivery system for using a mammary artery comprising:a first elongated instrument that is insertable into a patient's vascular system, wherein said first elongated instrument comprises a mammary catheter and a mammary guide device capable of navigating said mammary catheter to said patient's mammary artery at a pre-determined location; a second elongated instrument that is insertable into said patient's vascular system, wherein said second elongated instrument comprises a coronary catheter and a coronary guide device capable of navigating said coronary catheter to a coronary artery at a pre-determined location; a retrieving device capable of retrieving said mammary guide device and said coronary guide device and extracting said mammary guide device and said coronary guide device through a thoracic aperture in said patient; wherein one end of said retrieving device is magnetic or electrically charged having an opposite polarity than said mammary guide device, or one end of said retrieving device comprises a cone-shaped hollow device, or both; wherein said system further comprises a third elongated instrument comprising a thoracic catheter; and wherein said thoracic catheter in its diameter further comprises a step-off to limit forward movement of said thoracic catheter.