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AssigneeInnovative Interventional Technologies, B.V.
InventorsWilhelmus Joseph Leonardus Suyker, Paulus Thomas Wilhelmus Suyker
Estimating the term…
A system for making anastomoses between hollow structures by mechanical means is provided with a device in the shape of an annular or tubular element comprising circumferentially provided means, such as pin-shaped elements, for joining the abutting walls of the hollow structures together. An applicator is intended for moving said annular or tubular element in position and activating the joining means thereof, so as to make the anastomosis. Possibly, intraluminal joining means can be inserted without using an annular or tubular element.
A device for use in a system for making intraluminal anastomoses between hollow structures by mechanical means, comprising an annular or tubular element separate from the hollow structures and including joining means formed circumferentially thereon for joining the abutting walls of the hollow structures together, wherein said annular element is permanently deformable from a first diameter in the starting position to a second, larger diameter in the joining position, and wherein said joining means comprises a number of pin-shaped elements which are circumferentially provided on said annular element, and which are movable or deformable between a starting position and a joining position in order to hold the abutting walls together.
Dependencies are inferred from the claim text.
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Surgical instruments, devices or methods: for performing anastomosis; Buttons for anastomosis
Surgical staples, i.e. penetrating the tissue: penetrating the tissue, deformable to closed position
For performing anastomosis; Buttons for anastomosis: staplers for performing anastomosis, e.g. in a single operation
Surgical instruments, devices or methods: wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together…
Term end not estimated
The present invention relates to a system for making anastomoses between hollow structures by mechanical means, and also to a device and an applicator for use therewith.
Such a system may for example be used when making a bypass past narrowings or occlusions of arteries caused by arteriosclerosis. There are now various possibilities of remedying such constrictions or occlusions.
If the constriction or occlusion takes place in a coronary artery, the least radical method is to dilate the constriction by means of a PTCA procedure (Percutaneous Transluminal Coronary Angioplasty), which may or may not be followed by the placing or an intraluminal stent. This is not always possible, however.
The invention will be explained in more detail hereafter with reference to the drawings, which show embodiments of the invention.
FIG. 1 is a perspective view of a first embodiment of the device for making anastomoses by mechanical means according to the invention, showing the starting position thereof.
FIG. 2 is a side view of the device according to FIG. 1.
FIGS. 1-6 show a first embodiment of a device for making anastomoses between hollow structures, in particular arteries or veins, by mechanical means.
In the present case, the device is a one-piece tubular or annular element 1, which is made of a biocompatible and plastically deformable material, for example a tantalum alloy or another material used in medical technology. Annular element 1 may be considered to be an assembly of two zigzag-like elongated elements 2 and 3 which extend substantially in circumferential direction but not along the contour line, which elements are interconnected at the facing vertices, thus forming a ring of diamond-shaped structures 4. Present on the vertices of the zigzag-like elements 2, 3 that face away from each other are pin-shaped elements 5, 6, which are provided with sharp tips 7 at their ends facing away from annular element 1, wherein the tips 7 of two associated pin-shaped elements 5, 6 forming a pair are directed towards each other. The pin-shaped elements may be straight, but also curved or angular, for example, thus forming staples which are C-shaped, as it were, whilst the pin-shaped elements may also be shaped more like lips.
Since annular element 1 is formed from elongated elements 2, 3, whose length in circumferential direction is greater than that of annular element 1 in the position as shown in FIGS. 1-3, and since elements 2 and 3 are capable of deformation, it is possible to expand annular element 1 from the starting position as shown in FIGS. 1-3 to a final position, or joining position, as shown in FIGS. 4-6. In said joining position, annular element 1 has a diameter which is associated with a diameter which is at most equal to the length of elongated elements 2, 3. It would also be possible, of course, to expand annular element 1 only to a smaller diameter.