Hose set

1. A hose set for a device for insufflation of gas into a human or animal body, comprising:

a first hose portion including a first port and a second port, said first port being connectable to an outlet of the device for insufflation, and a first hose connecting said first port and said second port, and

a second hose portion including a third port and a fourth port, said fourth port being connectable to an insufflation instrument, and a second hose connecting said third port and said fourth port,

wherein said first hose and said second hose are both external to the device for insufflation,

wherein said second port comprises a first connecting element and said third port comprises a second connecting element, said first connecting element and said second connecting element being mechanically complementary with respect to each other, by means of said first connecting element and said second connecting element, said second port and said third port being connectable with each other in a gas-tight manner, wherein said first connecting element carries in a section of a periphery of its flange a first electrical port, and said second connecting element carries in a section of a periphery of its flange a second electrical port, wherein to said second electrical port a heating device arranged in said second hose portion is electrically connected, and

wherein said second port or said third port comprises a sterile filter element, which spans the inner cross section of said second port or said third port, respectively.

2. The hose set according to claim 1 , wherein the second connecting element carries the sterile filter element.

3. The hose set according to claim 1 , wherein one of said first connecting element and said second connecting element is formed by a first flange with an internal thread and the other of said first connecting element and second connecting element is formed by a second flange with an external thread being complementary to said internal thread, and wherein said first and second flanges are connected with each other in a gas-tight manner by a screw fit in a final position.

4. The hose set according to claim 1 , wherein one of said first connecting element and said second connecting element is formed by a first flange with latching projections being spaced to each other and projecting radially inwardly, and the other of said first connecting element and said second connecting element is formed by a second flange with holding projections extending in a radial direction, wherein said holding projections, relative to the peripheral direction of said second flange, have a distance, which is larger than the length of said latching projections, and wherein said holding projections and said latching projections are engageable with each other by rotating said first flange and said second flange against each other into a final position and connect said first and second flanges with each other in a gas-tight manner.

5. The hose set according to claim 1 , wherein one of said first connecting element and said second connecting element is formed by a first flange having at least one latching recess provided in a section of the periphery of said first flange, and the other of said first connecting element and said second connecting element is formed by a second flange having at least one latching element provided in the section of the periphery, wherein said latching recess and said latching element are complementary with respect to each other and connect said first flange and said second flange with each other in a gas-tight manner by latching in each other into a final position.

6. The hose set according to claim 3 , wherein one of said first connecting element and said second connecting element comprises a flange sleeve, the inner diameter of which is in the opening section larger than the outer diameter of said second flange of the other of said first connecting element and said second connecting element and wherein the inner diameter of the flange sleeve, relative to the direction of insertion of said second flange of said other of said first connecting element and second connecting element, reduces to an inner diameter, which is smaller than the outer diameter of said second flange of said other of said first connecting element and second connecting element, wherein at least one of the components, flange sleeve and/or second flange, is formed from a plastic or elastic material, or

wherein one of said first connecting element and second connecting element comprises a flange sleeve with a cylindrical inner wall, wherein the outer diameter of said second flange, relative to the direction of insertion of said second flange of said other of said first connecting element and second connecting element, reduces from an outer diameter, which is larger than the inner diameter of the flange sleeve, to an outer diameter, which is smaller than the inner diameter of the flange sleeve, wherein at least one the components, flange sleeve and/or flange, are formed from a plastic or elastic material.

7. The hose set according to claim 1 , wherein either said first connecting element, in the section of the periphery of its flange, or a gas supply, to which the hose set is connected, carries an electric reading unit, and said second connecting element, in the section of the periphery of its flange, carries machine readable identity element, wherein said identity element and said reading unit are arranged, in the final position of the two flanges, immediately opposite to each other.

8. The hose set according to claim 7 , wherein with said first electrical port a wire connection for the connection to the device for insufflation and/or a transmitter for the wireless transmission of data to the device for insufflation, is electrically connected.

9. The hose set according to claim 7 , wherein the identity element comprises a code element being different for every second hose portion, and wherein the identity element preferably comprises a safety element.

10. The device for insufflation of gas into a human or animal body, comprising a gas supply with a gas port, to which a hose set according to claim 1 is connected by means of said first port, and comprising an insufflation device connected to said fourth port.

11. The device according to claim 10 , comprising an electrical port, to which said reading unit and/or said first electrical port of the hose set is connectable in a detachable manner, and/or comprising a receiver for receiving data transmitted by means of the transmitter of the hose set.

12. The method for insufflation of gas into at least one of a human and animal body, wherein the distal end of the insufflation device according to claim 10 is introduced into a body cavity, and gas is fed therethrough.

13. The method for multiple insufflation of gas into at least one of a human and animal body or into several different human and animal bodies, comprising the step of providing the device according to claim 10 , wherein said first hose portion is not replaced after every insufflation process, and wherein said second hose portion is replaced after every insufflation process.

14. The hose set according to claim 1 further comprising a machine readable identity element carried in said section of said periphery of said flange of said second connecting element.

15. The hose set according to claim 14 further comprising a humidity sensor arranged in said second hose portion to which said second port is electrically coupled.