Device and procedure for joining hollow organs
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsRolf Dieter Schraft, Andrea Hiller, Jochen Klenk, Joachim-Gerd Rein, Alexander Paul Horke
Life of this patent
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Abstract
The invention relates to a device for joining hollow organs with an elongated holder and a needle carrier which is positioned at one end of the holder, where the needle seat extends radially, forming an overhang projecting beyond the periphery of the holder, as well as with a plurality of needles which are disposed standing vertically on the projecting overhang of the needle seat, surrounding the holder.
Claims36
Device with a lengthy holder for joining hollow organs, a needle carrier, which is located at one end of the holder, where the needle seat forming an overhanging projection projects radially beyond the periphery of the holder, and
Device in accordance with the preceding claim, characterized by a device to deploy the needles at a predetermined angle to the axial direction of the holder in a radial direction.
Device in accordance with the preceding claim, characterized in that the device for deploying the needles in a radial direction is an expanding sleeve which surrounds the holder and is movable in such a way between the needles and the holder that the needles are inclined outwards.
Device in accordance with one of the preceding claims, characterized in that adjacent to the holder and above the points of the needles an insertion aid is located for one of the hollow organs to be joined, extending radially beyond the particular needle adjacent to it or expandable in such a way that it extends radially beyond the particular needle adjacent to it
Device in accordance with the preceding claim, wherein the sleeve possesses elements in the area facing away from the needle points to constrict its passage.
Device in accordance with the preceding claim, wherein the elements to restrict the passages of the sleeve are inflatable pressure cushions.
Device in accordance with one of the preceding claims wherein an annular device to generate a vacuum is provided in the axial direction of the needles above the needle points.
Device in accordance with the preceding claim wherein the device for generating a vacuum is formed annularly around the axial direction of the holder.
Device in accordance with one of the preceding claims, characterized in that the insertion aid or the sheath has radial notches or holes aligned in a straight line with the individual needles to permit passage of the individual needles.
Device in accordance with one of the preceding claims, characterized by a needle cap which covers the needles detachably.
Device in accordance with one of the preceding claims, characterized by a needle seat postionable above the needle points and surrounding the holder, which can be pushed onto the needle points or onto which the needle points can be pushed.
Device under one of the two preceding claims, characterized in that the needle cap and/or the needle seat can be separated and/or opened up along its periphery.
Device in accordance with the preceding claim, characterized in that the needle cap and/or the needle seat is can be divided into two parts along its periphery.
Device in accordance with one of the preceding claims, characterized by a retraction device to remove the needle cap from the needles and/or a motion device to move the expanding sleeve between the needles and the holder and/or a pressure device to press the needle seat onto the needle points or the needle points onto the needle seat.
Device in accordance with the preceding claim, characterized in that the holder has controls to move the retraction device, the motion device and/or the pressure device.
Device in accordance with the preceding claim, characterized in that the controls have push buttons which are located at the opposite end of the handle to the needle carrier.
Device in accordance with one of the preceding claims characterized in that a foot is located on the holder below the shoe.
Device in accordance with one of the preceding claims, characterized by a separate needle seat cradle for one or two needle seats.
Device in accordance with one of the preceding claims, characterized by a separate connecting device for attaching the ends of a suture.
Device in accordance with one of the preceding claims, characterized in that the specific ends of a suture can be joined by means of a clip using the connecting device.
Set with at least two devices in accordance with one of the preceding claims.
Set in accordance with the preceding claim, characterized in that in each case one end of a needle of one device is connected by a suture with one end of a needle of the other device.
Procedure to join a first opening in a hollow organ with a second opening in a second hollow organ, characterized in that a first array of needles is inserted into the first opening, a second array of needles with th ends of the needles in front is inserted into the second opening, where the end of each needle in the first array is connected to the end of a needle in the second array by means of a suture, the needles of each array are pushed jointly through the wall of the particular hollow organ along its opening with the needle points in front in each case, and subsequently the sutures are pulled tight and the two ends of each suture are tied together.
Procedure in accordance with the preceding claim, characterized in that the needles of one or both arrays are disposed in a ring.
Procedure in accordance with one of the two preceding claims, characterized in that the needles of at least one of the arrays, after being inserted into the opening of the hollow organ, are splayed out from each other with their points in a radial direction.
Procedure in accordance with one of the three preceding claims, characterized in that the opening of at least one hollow organ is expanded such that the hollow organ can be slipped over one of the arrays of needles with the area surrounding the opening, or one of the arrays of needles can be pushed through the area of the hollow organ surrounding the opening with a movement in the axial direction.
Device in accordance with the preceding claims, wherein the area facing away from the opening is compressed.
Device in accordance with one of the two preceding claims, wherein the hollow organ is pulled by vacuum against the inner wall of a sheath and held in position there.
Procedure in accordance with one of the preceding claims, characterized in that the needle seat is pushed onto the needle points, or the needle points are pushed onto the needle seat, and the needle seat is then pulled away from the wall of the hollow organ.
Use of a device, a set an/or a procedure in accordance with one of the preceding claims for joining hollow organs, in the filed of vascular surgery for connecting vessels, in particular in by-pass surgery on the heart and for the treatment of stenoses, occlusions, strictures and thromboses in peripheral arteries and in surgery of the gastrointestinal tract.
Use in accordance with the preceding claim in minimally invasive and endoscopic surgery.
Dependencies are inferred from the claim text.