Occlusion catheter for the ascending aorta

• US 7,041,079 B2
• Filed: 11/18/2003
• Issued: 05/09/2006
• Est. Priority Date: 10/04/1999
• Status: Expired due to Fees

• Current Assignee: K K. Vayu
• Original Assignee: K K. Vayu
• Inventors: Tsutsui, Nobumasa, Yozu, Ryohei, Kumeno, Takashi
• Primary Examiner(s): Look, Edward K.
• Assistant Examiner(s): Fristoe, Jr., John K.
• Application Number:
  US10/715,646
• Publication Number:
  US 20040102734A1
• Time in Patent Office: 903 Days
• Field of Search: 604/6.16, 604/96.01, 604/102.01, 604/102.02, 604/102.03, 604/104, 604/264, 604/523, 606/191, 606/194, 606/192
• US Class Current: 604/96.01
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1056 having guide wire lumens outside the main shaft, i.e. the guide wire lumen is within or on the surface of the balloon
• CPC Class Codes: A61M 2025/1095 with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
• CPC Class Codes: A61M 2025/1097 with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon
• CPC Class Codes: A61M 2210/127 Aorta
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067
• CPC Class Codes: A61M 25/0032 characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

An occlusion catheter for the ascending aorta capable of obstructing the blood flow within the ascending aorta without inserting through the femoral artery. The occlusion catheter is provided with a drug release aperture formed in the region, which is closer to the proximal end of the catheter tube than a balloon on the outer circumference of the distal end and which is to be located in the vicinity of the coronary ostium when the balloon is placed within the ascending aorta. The present occlusion catheter, when inserted directly into the ascending aorta in the vicinity of the heart to obstruct the blood flow therewithin, enables delivery of a cardiac muscle protective drug to the vicinity of the coronary ostium without inserting the occlusion catheter through the femoral artery in the conventional manner.

Claims

1. A method of using an occlusion catheter for the ascending aorta, the method comprising the steps of:

making an incision or a hole in a chest of a patient to provide access to an ascending aorta from the outside and creating an opening at an insertion site of the ascending aorta, and then expanding the opening in the ascending aorta with a dilator;

inserting the occlusion catheter for the ascending aorta, following the expansion of the opening in the ascending aorta, into the ascending aorta through the incision in the chest and the expanded opening in the ascending aorta and fixing the occlusion catheter to the ascending aorta;

placing a balloon in a proper indwelling position and inflating the balloon to occlude the ascending aorta; and

releasing a cardiac muscle protective drug from a drug release aperture to deliver the cardiac muscle protective drug to a vicinity of a coronary ostium.

2. A method of using an occlusion catheter for the ascending aorta in which the occlusion catheter has a drug release aperture located adjacent a leading end thereof, the method comprising the steps of:

making an incision or a hole in a chest of a patient to provide access to an ascending aorta from the outside and creating an opening at an insertion site of the ascending aorta,

expanding the opening in the ascending aorta with a dilator;

inserting the occlusion catheter into the ascending aorta through the incision in the chest and the expanded opening in the ascending aorta, following the expansion of the opening in the ascending aorta, and fixing the occlusion catheter so that the leading end of the occlusion catheter is located within the ascending aorta;

placing a balloon in a proper indwelling position and inflating the balloon to occlude the ascending aorta; and

releasing a cardiac muscle protective drug from the drug release aperture of the occlusion catheter to deliver the cardiac muscle protective drug to a vicinity of a coronary ostium.

3. A method of using an occlusion catheter for the ascending aorta in which the occlusion catheter has a drug release aperture located adjacent a leading end thereof, the method comprising the steps of:

making an incision in a chest in the region of the heart of a patient to provide access to an ascending aorta for the catheter;

creating an opening at an insertion site in the ascending aorta in the region of the heart;

expanding the opening in the ascending aorta with a dilator;

inserting the occlusion catheter into the ascending aorta through the incision in the chest and the expanded opening in the ascending aorta, following the expansion of the opening in the ascending aorta;

securing the occlusion catheter with the leading end of the occlusion catheter located within the ascending aorta;

placing a balloon of the catheter in a proper indwelling position and inflating the balloon to occlude the ascending aorta; and

releasing a cardiac muscle protective drug from the drug release aperture of the occlusion catheter to deliver the cardiac muscle protective drug to a vicinity of a coronary ostium.