Anastomosis member for anastomosis of blood vessels and anastomosis method using the anastomosis member
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Abstract
An anastomosis member has a generally cylindrical body comprising a plate member to be brought into contact with first and second blood vessels. The plate member is arranged in contact with the first and the second blood vessels at an anastomosed site where the first and the second blood vessels are anastomosed to each other. The plate member is provided with a plurality of protrusions formed on at least one of opposite surfaces thereof. The protrusions are engaged with at least one of the first and the second blood vessels to avoid the dislocation of the first and the second blood vessels at the anastomosed site.
47 Citations
26 Claims
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1-11. -11. (canceled)
- 12. An anastomosis device for use in the anastomosis of first and second blood vessels, said anastomosis device comprising a combination of an anastomosis member arranged on an outer surface of at least one of said first and said second blood vessels and a stent to be arranged in a lumen of said at least one of the first and the second blood vessels, said anastomosis member having a generally cylindrical body comprising at least one plate member to be brought into contact with both of said first and said second blood vessels, said plate member having a plurality of protrusions formed on at least one of opposite surfaces thereof to be engaged with at least one of said first and said second blood vessels:
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17. An anastomosis method for the anastomosis of first and second blood vessels by the use of an anastomosis device to be arranged at an anastomosed site of said first and said second blood vessels, said anastomosis device comprising a combination of an anastomosis member and a stent, said anastomosis member comprising a plate member with a plurality of protrusions formed on at least one of opposite surfaces thereof, said method comprising the steps of:
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inserting said stent into an end portion of a lumen of one of said first and said second blood vessels;
inserting the end portion of said one of the first and the second blood vessels into an end portion of a lumen of the other of said first and said second blood vessels;
inserting said anastomosis member so that said anastomosis member is interposed between said first and said second blood vessels at an anastomosed site where said first and said second blood vessels overlap each other;
bringing said protrusions into contact with said first and said second blood vessels;
press-fitting by said stent said first and said second blood vessels at said anastomosed site;
engaging said first and said second blood vessels with said protrusions so as to prevent the dislocation of said first and said second blood vessels at said anastomosed site. - View Dependent Claims (18, 25, 26)
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19. An anastomosis method for the anastomosis of first and second blood vessels by the use of an anastomosis device to be arranged at an anastomosed site of said first and said second blood vessels, said anastomosis device comprising a combination of an anastomosis member and a stent, said anastomosis member comprising a plate member with a plurality of protrusions formed on at least one of opposite surfaces thereof, said method comprising the steps of:
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inserting said stent to extend over lumens of said first and said second blood vessels;
abutting said first and said second blood vessels to each other;
arranging said anastomosis member around outer surfaces of said first and said second blood vessels;
bringing said protrusions into contact with an adventitia of each of said first and said second blood vessels; and
engaging said first and said second blood vessels with said protrusions so as to prevent the dislocation of said first and said second blood vessels at said anastomosed site. - View Dependent Claims (20, 21, 22)
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Specification