Perfusion device for maintaining blood flow in a vessel while isolating an anastomosis

• US 6,214,022 B1
• Filed: 04/28/1999
• Issued: 04/10/2001
• Est. Priority Date: 02/20/1996
• Status: Expired due to Fees

• Current Assignee: Maquet Cardiovascular LLC (Getinge AB)
• Original Assignee: Cardiothoracic Systems, Inc. (Boston Scientific Corporation)
• Inventors: Krolic, Jeff A., Sepetka, Ivan, Taylor, Charles S., Matheny, Robert G., Salahieh, Amr, Cantu, Alfredo R., Gia, Son M.
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): Woo, Julian W.
• Application Number:
  US09/301,019
• Time in Patent Office: 713 Days
• Field of Search: 606/108, 606/153, 606/191, 606/192, 606/193, 606/198, 623/1, 623/12
• US Class Current: 606/153
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12131 characterised by the type of occluding device
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/1219 expandable in contact with liquids
• CPC Class Codes: A61B 2017/1135 End-to-side connections, e.g. T- or Y-connections Y-shaped blood vessel prostheses A61F2002/065
• CPC Class Codes: A61B 2017/12127 Double occlusion, e.g. for creating blood-free anastomosis site

Abstract

A plurality of embodiments of a distal perfusion device are disclosed, which device facilitates anastomosis constructions by maintaining a dry anastomosis site while simultaneously maintaining blood flow distally in the blood vessel to prevent ischemia and reduce overall patient trauma. The perfusion device is configured for installation into a blood vessel such as a left anterior descending coronary artery through an incision therein, to which is to be grafted a distal end of a blood vessel such as an internal mammary artery. The device includes a central member of selected configuration and material, terminating at either end thereof in respective selectively tapered end members. A lumen extending through the central member and end members, and selected perforations in the end members, maintain blood flow through the perfusion device. A selected portion or portions of the device'"'"'s outer circumference fit snugly within the artery in the regions beyond and/or at the anastomosis site, to maintain the latter free of blood. Several methods for deploying and removing respective embodiments of the device also are illustrated.

Claims

1. A distal perfusion device for maintaining blood flow in a blood vessel comprising:

a first tapered end member having at least one perfusion opening and a tip located distal to the perfusion opening;

a second tapered end member having at least one perfusion opening and a tip located distal to the perfusion opening;

a main tubular body extending between said first and second end members, said main tubular body comprising a centrally disposed lumen in fluid communication with said perfusion openings of said first and second and members; and

a support member extending from said main tubular body and in fluid communication with the centrally disposed lumen.

2. The device of claim 1 further comprising a fluid holding chamber in fluid communication with said supporting member.

3. The device of claim 2 wherein said fluid holding chamber contains saline.

4. The distal perfusion device of claim 1 further comprising means for expansion or contraction of said main tubular body.

5. The distal perfusion device of claim 4 wherein said means for expansion or contraction is a thread.

6. The distal perfusion device of claim 4 wherein said means for expansion or contraction is a wire.

7. The distal perfusion device of claim 1 further comprising means for delivery or removal of said device from a blood vessel.

8. The distal perfusion device of claim 7 wherein said means for delivery includes a flexible elongated member.

9. The distal perfusion device of claim 8 wherein said flexible elongated member is an introducer tube.

10. The distal perfusion device of claim 8 wherein said flexible elongated member is a guide wire.

11. The distal perfusion device of claim 1 wherein said supporting member is configured to support a distal end of an artery or vein to be used in an anastomosis.