Medical device for extracorporeal blood treatment comprising plural sensor units

1. A medical device for extracorporeal blood treatment comprising:

a housing; and

an extracorporeal blood circulation having:

a tube, and

at least two sensor units mounted to the housing of the medical device with different operating principles measuring directly on the tube and not on a chamber, wherein:

the at least two sensor units are coupled to portions of the tube for measurement, and

each sensor unit comprises a respective sensor-specific component and a respective sensor-neutral component, wherein:

each of the respective sensor-specific components includes a base member mounted to the housing of the medical device, and a respective specific sensor system formed to be different dependent on a respective operating principle, and

each of the respective sensor-neutral components includes a housing fully enclosing one of the respective sensor-specific components, wherein each of the sensor-neutral components are identical;

each of the respective sensor-neutral components is mounted on and encloses the respective sensor-specific component for each sensor unit such that the respective sensor-specific component is not visible when the sensor unit is mounted on the housing of the medical device, and wherein the respective specific sensor system of the respective sensor-specific component is located beneath a portion of the tube when the tube is fixed within the sensor-neutral component mounted on the respective sensor-specific component, such that the respective specific sensor system carries out a respective measurement at the tube; and wherein

each respective sensor-neutral component has a cover, wherein in a closed and locked position the portion of the tube is pressed against the sensor system of the associated respective sensor-specific component and in an open position the portion of the tube is not pressed against the sensor system.

2. The medical device according to claim 1 , wherein the respective sensor-neutral and respective sensor-specific components each have differently formed base members and the base members of the respective sensor-neutral components enclose the base members of the respective sensor-specific components located there beneath.

3. The medical device according to claim 2 , wherein the base members of the respective sensor-neutral components include a recess configured to receive a portion of the tube at the respective sensor-neutral components so that the portion of the tube is coupled to the respective specific sensor system of each respective sensor-specific component through the recess.

4. The medical device according to claim 3 , wherein each respective sensor-specific component includes a tube channel into which the portion of the tube can be inserted.

5. The medical device according to claim 4 , wherein the tube channels of at least two respective sensor-specific components are formed differently.

6. The medical device according to claim 4 , wherein each respective sensor-neutral component has two channel-type tube holders with the recess located there between and that the tube holders are located at the two ends of the tube channel of the respective sensor-specific component so that a continuous tube channel is resulting.

7. The medical device according to claim 1 , wherein the cover includes at least one pressure element protruding from the cover by which pressure is applicable to the portion of the tube.

8. The medical device according to claim 1 , wherein the cover is pivoted to the respective base member of the respective sensor-neutral component and is adapted to be locked in a closed position at the base member.

9. The medical device according to claim 8 , wherein at least one detent element is provided for locking at the cover at the base member.

10. The medical device according to claim 5 , wherein each respective sensor-neutral component has two channel-type tube holders with the recess located there between and that the tube holders are located at the two ends of the tube channel of the respective sensor-specific component so that a continuous tube channel is resulting.

11. The medical device according to claim 7 , wherein the cover is pivoted to the respective base member of the respective sensor-neutral component and is adapted to be locked in a closed position at the base member.

12. A medical device for extracorporeal blood treatment comprising:

a housing; and

an extracorporeal blood circulation having:

a tube, and

at least two sensor units mounted to the housing of the medical device with different operating principles measuring directly on the tube and not on a chamber, wherein:

the at least two sensor units are coupled to portions of the tube for measurement, and

each sensor unit comprises a respective sensor-specific component and a respective sensor-neutral component, wherein:

each of the respective sensor-specific components includes a base member mounted to the housing of the medical device, and a respective specific sensor system formed to be different dependent on a respective operating principle, and

each of the respective sensor-neutral components includes a housing fully enclosing one of the respective sensor-specific components, wherein each of the sensor-neutral components are identical; and wherein

each of the respective sensor-neutral components is mounted on and encloses the respective sensor-specific component for each sensor unit such that the respective sensor-specific component is not visible when the sensor unit is mounted on the housing of the medical device, and wherein the respective specific sensor system of the respective sensor-specific component is located beneath a portion of the tube when the tube is fixed within the sensor-neutral component mounted on the respective sensor-specific component, such that the respective specific sensor system carries out a respective measurement at the tube.