Surgery – Instruments – Surgical mesh – connector – clip – clamp or band
Patent
1996-08-23
1998-08-25
Jackson, Gary
Surgery
Instruments
Surgical mesh, connector, clip, clamp or band
606155, A61B 1704
Patent
active
057979340
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a method for connecting an end of a first vessel to the side of a second vessel, such as said set forth in the preamble of claim 1.
BACKGROUND ART
Various methods for performing an end-to-side anastomosis are known within the art of surgery. Most of these known methods are, however, time-consuming, and thus not suitable for use when time is at a premium and a quiet field of operation is needed, as for example in the case of coronary bypass operations.
DISCLOSURE OF THE INVENTION
It is the object of the present invention to provide a method of the kind referred to above, with which it is possible to perform an end-to-side anastomosis in a matter of seconds, thus making it suitable for use when performing e.g. coronary bypass operations, and this object is achieved with a method of said kind, which according to the present invention comprises the steps set forth in the characterizing clause of claim 1. By proceeding in this manner, the actual anastomosis operation is simply performed by inserting the instrument, properly prepared and carrying the first vessel, into the previously made incision in the second vessel and releasing the anastomotic fitting, the spikes of which will "nail" the two vessels together. The method is especially intended for use in conjunction with the method for performing the initial steps of a coronary bypass connection subject of the co-pending application WO 95/17127.
The present invention also relates to an anastomotic apparatus for carrying out the method referred to above, and according to the invention, this apparatus comprises the combination of features set forth in the characterizing clause of claim 4, a preferred embodiment of which is set forth in claim 5. With such an apparatus, the first vessel can be inserted through the tubular member and the passage in the ejector, after which an anastomotic fitting can be placed in an elastically "charged" position in the circumferential recess about the vessel, the end of which is then everted about the end face so as to make its intima face outwards. In this condition, the tubular member carrying the first vessel is inserted in the anastomotic opening having been made in the second vessel in a manner to make the intimae of the two vessels face and contact each other, after which the ejector is moved in its ejecting direction, thus releasing the anastomotic fitting to spring outwardly and join the two vessels to each other.
Finally, the present invention relates to an anastomotic fitting for use when carrying out the method of the invention. This fitting is of the kind set forth in the preamble of claim 8, and according to the invention, it also comprises the features set forth in the characterizing clause of this claim 8.
Advantageous embodiments of the method and apparatus according to the invention, the effects of which are explained in the following detailed portion of the present description, are set forth in claims 2, 3 and 6, 7, respectively.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed portion of the present description, the invention will be explained in more detail with reference to the drawings, in which
FIG. 1 is a simplified perspective view of a sensing and incising instrument with its sensing means placed in contact with a coronary artery and the surrounding surface of the heart,
FIG. 2 shows a first face on the instrument of FIG. 1, comprising said sensing means,
FIG. 3 is a sectional view along the line III--III in FIG. 2,
FIG. 4 at a greatly enlarged scale and in longitudinal section shows an anastomotic instrument prepared for carrying out an end-to-side anastomosis in an incision in the coronary artery made by the sensing and incising instrument shown in FIG. 1,
FIG. 5 is a simplified bottom view of certain parts of the instrument shown in FIG. 4,
FIG. 6 is a set of contour curves illustrating the shape of a part of the instrument shown in FIG. 4,
FIGS. 7-10 show the "front end" of the instrument shown in FIG. 4 during various stages of the
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patent: 5119983 (1992-06-01), Green et al.
patent: 5158222 (1992-10-01), Green et al.
patent: 5234447 (1993-08-01), Kaster et al.
patent: 5254127 (1993-10-01), Wholey et al.
patent: 5285944 (1994-02-01), Green et al.
Bernafon AG
Jackson Gary
Oticon A/S
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