Device for segmental perfusion and aspiration of colon and rectum
First Claim
1. A device for segmental perfusion/aspiration of intestinal segments comprising;
- a catheter (1) having a wall forming a large central channel (10),said large central channel (10) sized for passage of an endoscope therethrough,a plurality of parallel smaller channels (11-21) in said wall having diameters smaller than a diameter of said central channel,said plurality of smaller channels each having a first end terminating at a hole on an outer surface of said wall,a plurality of intestinal segment-deliminating balloons which pairwise delimit said segments, said plurality of balloons sealingly engaged along a length of said catheter and around a circumference thereof,a number of holes of said plurality of holes communicating with an interior of said plurality of segment-deliminating balloons to permit inflation thereof through a corresponding number of said plurality of parallel smaller channels,a remainder of said plurality of holes providing aspiration and perfusion of fluid from and to different segments of an intestine delimited by pairs of said plurality of segment-deliminating balloons and release of a marking substance to selected segments of said different segments through a corresponding number of said plurality of parallel smaller channels,said device being sufficiently stiff for introduction through an anal orifice and having an inflatable anchoring device (2) engaged on an end of said catheter to firmly fix said end on two sides of said anal orifice after inflation,wherein said device produces at least two of said different segments delimited by said intestinal segment-deliminating balloons, andwherein said anchoring device is formed by two balloons (3,
4).
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Accused Products
Abstract
The present invention concerns a device for segmental perfusion/aspiration of intestinal segments, including a catheter (1) having one large central channel (10) and several parallel, in relation to the central channel smaller channels (11-21) which, through holes in the outer wall of the catheter, are used for inflation of segment-delimiting balloons arranged along the catheter and around its circumference, for aspiration and perfusion of fluid from and to different segments of the intestine delimited by balloons, and for release of marker substance. The invention is characterized by that the device is shaped for introduction through the anal orifice, that the device includes two intestinal segments which are delimited by four inflatable balloons, that the device is provided with an anchoring device (2), which after introduction of the catheter is inflated in order to firmly fix the catheter to the anal orifice, and that the central channel is designed to receive an endoscope.
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Citations
8 Claims
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1. A device for segmental perfusion/aspiration of intestinal segments comprising;
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a catheter (1) having a wall forming a large central channel (10), said large central channel (10) sized for passage of an endoscope therethrough, a plurality of parallel smaller channels (11-21) in said wall having diameters smaller than a diameter of said central channel, said plurality of smaller channels each having a first end terminating at a hole on an outer surface of said wall, a plurality of intestinal segment-deliminating balloons which pairwise delimit said segments, said plurality of balloons sealingly engaged along a length of said catheter and around a circumference thereof, a number of holes of said plurality of holes communicating with an interior of said plurality of segment-deliminating balloons to permit inflation thereof through a corresponding number of said plurality of parallel smaller channels, a remainder of said plurality of holes providing aspiration and perfusion of fluid from and to different segments of an intestine delimited by pairs of said plurality of segment-deliminating balloons and release of a marking substance to selected segments of said different segments through a corresponding number of said plurality of parallel smaller channels, said device being sufficiently stiff for introduction through an anal orifice and having an inflatable anchoring device (2) engaged on an end of said catheter to firmly fix said end on two sides of said anal orifice after inflation, wherein said device produces at least two of said different segments delimited by said intestinal segment-deliminating balloons, and wherein said anchoring device is formed by two balloons (3,
4). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A process for segmental perfusion/aspiration of internal segments in the large intestine, comprising the steps of:
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(a) inserting an endoscope by means of a catheter through the anal orifice into the large intestine; wherein said catheter comprises a wall forming a large central channel (10), within which said endoscope is integrally engaged, said wall having a plurality of parallel channels (11-21) formed therein, said plurality of channels each having a first end terminating at a hole on an outer surface of said wall, a plurality of balloons sealingly engaged along a length of said catheter and around a circumference thereof, a number of holes of said plurality of holes communicating with an interior of said plurality of balloons, and an inflatable anchoring device engaged on an end of said catheter; (b) inflating said anchoring device to firmly fix said catheter to an anal orifice; and (c) thereafter inflating pairs of said balloons on said catheter to form intestinal segments, and perfusing and aspirating said intestinal segments through a remainder of said plurality of holes.
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Specification