Abstract: Apparatus for forming an anastomosis between first and second body lumen wall sections, the apparatus having a coil implant (10) which has an elongate tubular member (16) made of shape memory material, the elongate member being self-expanding from a stretched-out stowed configuration for introduction into the body, to an implantation configuration in which a first portion (12) of the elongate member forms at least a first loop (20) of the coil and a second portion (14) of the elongate member forms at least a second loop (22) of the coil, the elongate member having at least one interior cavity, the coil implant further having a plurality of magnets (24) carried by the first and second portions of the elongate member, each magnet of the plurality being at least partly accommodated within the at least one interior cavity of the elongate member, the magnets arranged such that the first loop is magnetically attracted to the second loop for creating a magnetic compression anastomosis in tissue trapped between the f

Abstract: A biomedical device for percutaneous catheterization of a body duct. The device comprising an introducer assembly which has a dilator for widening an insertion site of a patient to access the duct, a sheath for introduction into the duct, and an inner guiding unit for guiding the dilator and/or sheath into the duct. The dilator having a tapered outer section and a distal opening and being arranged at least partially concentrically around the guiding unit. The sheath having distal opening and being arranged at least partially concentrically around the dilator, such that the guiding unit, dilator, and sheath are movable relative to each other in a longitudinal direction of the introducer assembly. The dilator may be guided along the guiding unit without removal of a puncturing element for puncturing the duct at a proximal end of the introducer assembly after insertion of the puncturing element into the duct.

Abstract: A bypass tube (14) has a distal end for placement into the small intestine of a patient and a proximal end for placement near or at the pylorus. The tube comprising a pyloric anchor (16) including a gastric anchor (22) for anchoring the proximal end of the tube with respect to the pylorus to prevent distal migration. The gastric anchor comprises a tubular balloon (24) and a self-expanding structure (22a, 22b) for biasing a radially inner wall and/or a radially outer wall of the tubular balloon outwardly towards its enlarged form. The self-expanding structure comprises a first zone comprising an annular hub or collar (22a) with a first resistance to inward collapsing, and a second zone comprising a plurality of independently deflectable beams or limbs (22b) extending from the first zone, and having a smaller second resistance to inward collapsing. Also described are a pyloric anchor that twists around its axis when expanding, and a non-helical reinforcement of the flexible tube in the small intestine.

Abstract: Apparatus for forming an anastomosis between first and second body lumen wall sections, the apparatus comprising a coil implant (10) comprising an elongate tubular member (16) made of shape memory material, the elongate member being self-expanding from a stretched-out stowed configuration for introduction into the body, to an implantation configuration in which a first portion (12) of the elongate member forms at least a first loop (20) of the coil and a second portion (14) of the elongate member forms at least a second loop (22) of the coil, the elongate member comprising at least one interior cavity, the coil implant further comprising a plurality of magnets (24) carried by the first and second portions of the elongate member, each magnet of the plurality being at least partly accommodated within the at least one interior cavity of the elongate member, the magnets arranged such that the first loop is magnetically attracted to the second loop for creating a magnetic compression anastomosis in tissue trapped

Abstract: The invention relates to insertion instruments (50) for insertion into a cavity, the instrument (50) comprising a flexible tubular sheet (1) having a first annular end (12), a second annular end (13) and a middle section (14) extending between the first annular end (12) and the second annular end (13), a first holding member (24) holding the first annular end (12), wherein an outer tubular outer portion (16) of the middle section (14) extends along an extension direction (D), from the first holding member (24) to a distal tip (17) of the instrument (50), a second holding member (2) holding a tubular inner portion (18) of the middle section (14), wherein the inner portion (18) extends inside the outer tubular outer portion (16) of the sheet (1), from the second holding member (2) to the distal tip (17), the inner portion (18) transiting into the outer portion (16) at the distal tip (17), a passage (19) defined inside the inner tubular inner portion (18) of the sheet (1), which passage (19) extends from the sec

Abstract: Apparatus for endoscopic anastomosis of the stomach and the bowel of a patient to allow food to bypass the duodenum and optionally a portion of the jejunum comprising a tube, surgical apparatus and at least one operating element. The tube is insertable into the stomach and has a proximal end and a distal end. The surgical apparatus is at least partially, preferably completely, insertable through the tube. The operating element, for operating the surgical apparatus from the proximal end, is connected or connectable to the surgical apparatus. The surgical apparatus is configured for establishing anastomosis between a first area of the stomach and a second area of the bowel.

Abstract: Apparatus comprising a stent (1) expandable from a non-deployed configuration (2) for delivery to a target site for an anastomosis, and a deployed configuration for forming a temporary stented-anastomosis (201) with a through-channel (5). Magnetic attraction between first and second portions (11, 12) around the through-channel (5) induces formation of a permanent, magnetic compression anastomosis (202) to biologically supplant the temporary stented-anastomosis (201). The apparatus may especially suitable for use in the digestive system, optionally in the gastrointestinal tract.

Abstract: An anchor (20) for anchoring a tube (10) with respect to a pylorus of a patient. The tube (10) may be a bypass tube or bypass conduit for bypassing a portion of the bowel. The anchor (20) may comprise a gastric bulb (22) collapsible for introduction and optionally self-expanding to an operative condition. The bulb (22) may have an open structure of a low pressure chamber. The bulb (22) may be configured to partly collapse in response to stomach contractions. This enables the bulb to exhibit compliance with the stomach contractions, and absorb the contractions. Other embodiments of tubes, anchors, balloons, and stapling, are also described.