Catheters and system for isolating an interior of a mammal hollow organ

A catheter 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 elongate 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 elongate catheter body and comprising a functional opening (7) provided in the elongate 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 gaseous medium, a liquid medium or a fluid medium therefrom via the functional opening (7), and wherein
• two spiral-shaped projections (6-2) divided by a gap (18-3) into two pairs of curved sections are further provided on a catheter body part defined by the two balloons (4) such that the gap (18-3) comprises the functional opening (7), and the two pairs of curved sections enclose the functional opening (7),
• wherein the two spiral-shaped projections (6-2) are designed such that both the spiral-shaped projections (6-2) allow a distance between a mucosal tissue of the mammal hollow organ, the mucosal tissue being between the inflated balloons (4), and the functional opening (7).

A catheter 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 elongate 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 elongate catheter body and comprising a functional opening (7) provided in the elongate 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 gaseous medium, a liquid medium or a fluid medium therefrom via the functional opening (7), and wherein
• two ring-shaped projections (6) enclosing the functional opening (7) are further provided on the elongate catheter body between the balloons (4) such that the functional opening (7) is between the two ring-shaped projections (6), and
• wherein the two ring-shaped projections (6) are 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), and the functional opening (7), and
• wherein each of the two ring-shaped projections (6) is provided with a traverse groove or cut (17), and
• wherein the traverse groove or cut (17) is designed such that the traverse groove or cut (17) allows the gaseous medium, the liquid medium or the fluid medium to be taken via the functional opening (7) to pass therethrough.