Method and apparatus for effecting a minimally invasive distal anastomosis for an aortic valve bypass
a distal anastomosis and aortic valve technology, applied in the field of surgical methods and equipment, can solve the problems of not being able being one of the more difficult and time-consuming elements of aortic valve bypass, and being unable to perform aortic valve bypass
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[0049]The present invention comprises a novel method and apparatus for effecting the distal anastomosis in an aortic valve bypass procedure. More particularly, the present invention comprises the provision and use of a novel locking collar connector to effect the distal anastomosis in an aortic valve bypass procedure. This novel locking collar connector allows the distal anastomosis to be effected quickly and safely, while requiring significantly less access to the anastomosis site and without requiring suturing to the descending aorta. Significantly, hemostasis is effectively maintained at substantially all times, so that the distal anastomosis can be carried out while the heart is beating.
Locking Collar Connector
[0050]Looking now at FIGS. 2-7, there is shown a novel locking collar connector 5 which comprises one preferred form of the present invention. Locking collar connector 5 generally comprises a ratchet bracket 10 (FIGS. 2, 3, 5 and 6), an inner collar 15 (FIGS. 2, 4, 5 and 6...
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Abstract
- a first component comprising:
- an inner collar for disposition within the interior of the second hollow structure, the inner collar having a toroidal configuration characterized by an outer perimeter and an inner perimeter, with the inner collar being flexible;
- a hollow body connected to the inner collar and upstanding therefrom, the hollow body of the inner collar being aligned with the inner perimeter of the inner collar; and
- a graft element mounted to the inner collar and forming a conduit extending through the hollow body and the inner perimeter of the inner collar, the graft being formed out of a fluid-retaining material; and
- a second component for disposition outside the second hollow structure, the second component comprising an outer collar and a hollow body connected to the outer collar, the outer collar having a toroidal configuration characterized by an outer perimeter and an inner perimeter, with the hollow body of the outer collar being aligned with the inner perimeter of the outer collar;
- the hollow body of the second component being sized for coaxial disposition over the hollow body of the first component so that the outer collar of the second component can be adjustably positioned relative to the inner collar of the first component and so that the conduit of the graft element provides fluid communication between (i) the region beyond the inner collar, and (ii) the region beyond the hollow body of the first component.
- a first component comprising:
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