Surgery – Instruments – Surgical mesh – connector – clip – clamp or band
Patent
1998-09-17
1999-11-30
Coggins, Wynn Wood
Surgery
Instruments
Surgical mesh, connector, clip, clamp or band
606153, 606219, 2271751, 2271791, A61B 1700
Patent
active
059934689
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a method of connecting an end region of a first vessel to the side of a second vessel by carrying out an end-to-side anastomosis, said method being of the kind comprising the following steps: carrying said first vessel in its central longitudinal cavity and with said end region everted about a circumferential member constituting a forward portion of said instrument in such a manner that the intima side of said end region comes into contact with the intima side of said second vessel at an edge region of said opening; therethrough and leaving therein a plurality of spiked members; and second vessels.
BACKGROUND ART
A method of this kind is disclosed in the international application having the publication No. WO 95/17128. In this previously known method, the means used for interconnecting the two vessels consisted of an open springy brace carrying spikes and being capable of being bent elastically so as to make its free ends cross each other, said spikes forming angles with the brace gradually diminishing from acute angles at the free ends to substantially right angles mid-way between them. When released from the anastomotic instrument holding the brace in the elastically bent condition, it would bring the spikes into engagement with the regions to be joined so as to penetrate the latter and so to speak nail them together.
Extra-clinical trials have, however, shown that one can not always be certain that all the spikes have penetrated through the parts concerned of the two vessels to be joined, this probably being due to the limited elastic force available from the springy brace.
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 achieve a more reliable connection between the two vessels forming the anastomosis, and this object is achieved by utilizing in the anastomosis method an instrument which comprises i) a first elongate member, to one end of which is rigidly secured a circumferential anvil member in such a manner, said first elongate member and anvil member being hollow for acceptance of said first vessel therethrough such that said first vessel may be placed within said first elongate member with its end region everted about said anvil member with the terminal part of said end region of said first vessel facing towards the opposite end of said first elongate member, ii) staple-bending recesses provided in said anvil member and facing towards said opposite end, iii) a second elongate member longitudinally moveable relative to said first elongate member and adapted to be moved towards said anvil member so as to make it possible to clamp together therebetween said and region on said first vessel and an edge region on said second vessel, and iv) stapling plungers longitudinally moveable relative to said first and second elongate members and adapted to insert staples penetratingly through said end and edge regions into engagement with said stapling-bending recesses when said end and edge regions are clamped between said second elongate member and said anvil, so as to bend permanently said staples into a shape in which they hold said end and edge regions together. With this arrangement, the parts concerned of the two vessels to be joined are connected to each other through a stapling operation based on the same principles as other surgical stapling devices and--incidentally--ordinary office staplers.
As already indicated above, the use of stapling devices in surgical work is not unknown, but until now only in situations, in which it is possible to move the organ or organs to be operated upon from their normal position in the patient's body, such as in the abdominal cavity, to a position--not infrequently outside the patient's body--in which the anvil member, against which the staples are bent (corresponding to the lower part of an office stapler), can be placed on the side of the joint concerned facing away from the stapling plungers (corresponding to the
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patent: 5797934 (1998-08-01), Rygaard
Bernafon AG
Coggins Wynn Wood
Maynard Jennifer
Oticon A/S
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