Catheter and method for isolating a region in a hollow organ of a mammal, and system based on the catheter, and use of the catheter

A catheter (100) for isolating an interior of a mammal hollow organ, the catheter comprising:

• an elongate catheter body designed to be inserted into a lumen of the mammal hollow organ;
• two balloons (4), individually and separately disposed along the catheter body and designed to be inflated to isolate the interior of the mammal hollow organ therebetween;
• and
• a functional channel (3) extending in the catheter body and comprising a functional opening (7) provided in the catheter body between the balloons (4), wherein the functional channel (3) is designed to allow:
• a negative pressure to be produced in the isolated interior to take a liquid or gaseous medium therefrom via the functional opening (7) or
• a liquid or gaseous medium to be supplied into the isolated interior via the functional opening (7),
• characterized in that two ring-shaped projections (6) enclosing the functional opening (7) are further provided on the catheter body between the balloons (4), such that the functional opening (7) is between the two ring-shaped projections (6), wherein the two ring-shaped projections each have a radius being less than that of the inflated balloons (4), wherein the two ring-shaped projections (6) are both designed such that they allow a distance between a mucosal tissue of the mammal hollow organ, the mucosal tissue being between the inflated balloons (4).

A catheter (100) for isolating an interior of a mammal hollow organ, the catheter comprising:

• an elongate catheter body designed to be inserted into a lumen of the mammal hollow organ;
• two balloons (4), individually and separately disposed along the catheter body and designed to be inflated to isolate the interior of the mammal hollow organ therebetween;
• and
• a functional channel (3) extending in the catheter body and comprising a functional opening (7) provided in the catheter body between the balloons (4),
• wherein the functional channel (3) is designed to allow:
• a negative pressure to be produced in the isolated interior to take a liquid or gaseous medium therefrom via the functional opening (7);
• or
• a liquid or gaseous medium to be supplied into the isolated interior via the functional opening (7);
• characterized in that
• the functional opening (7) is positioned between two ring-shaped enclosing projections (6) provided on a catheter body part defined by the balloons (4), and
• the catheter body is further provided with a net or enclosure (16) being permeable to a liquid medium and/or a gaseous medium, wherein the net or enclosure (16) at least partly encloses the catheter body part defined by the balloons (4) so as to cover the functional opening (7), and wherein the net or enclosure (16) is attached to the balloons (4) or encloses them such that the net or enclosure (16) becomes strained when the balloons (4) are inflated.