Lancing system

1. A lancing system, comprising

a plurality of lancing elements,

a plurality of test elements, each of which is assigned to a lancing element,

a hand-held device, comprising a holder that is configured to hold a lancing element of the plurality of lancing elements and a correspondingly assigned test element, a lancing drive that is configured to move the holder out of a starting position into a piercing position and back into the starting position, a light-sensitive sensor that is configured to analyze a body fluid sample taken up by a test element, and a light source for illuminating the test element, and

a housing, distinct from the holder, wherein the holder is seated against an outside of the housing, wherein the sensor is disposed in the housing.

2. The lancing system according to claim 1 , wherein the housing comprises on an outside at least one guide, that is configured to guide the holder during a puncture movement.

3. The lancing system according to claim 1 , wherein at least one lens is disposed in the housing.

4. The lancing system according to claim 1 , wherein at least one mirror is disposed in the housing.

5. The lancing system according to claim 1 , wherein the housing comprises a window, which a test element of the plurality of test elements, held by the holder touches when the holder is in the starting position.

6. The lancing system according to claim 1 , wherein an angled beam path runs in the housing.

7. The lancing system according to claim 1 , wherein the test element is a test field containing detection reagents for photometric concentration determination.

8. The lancing system according to claim 1 , wherein the lancing elements have a base body, which carries the correspondingly assigned test element.

9. The lancing system according to claim 1 , wherein the light source is positioned at a location in the housing such that a starting section of a beam path originating from the test element to be analyzed runs in the housing transversely to the puncture direction in which the holder is moved during a puncture.

10. The lancing system according to claim 1 , wherein the light source is positioned at a location in the housing such that an end section of a beam path originating from the test element to be analyzed runs in the housing along the puncture direction in which the holder is moved during a puncture.

11. The lancing system according to claim 1 , wherein the housing shields a beam path which leads from the test element to the sensor, from interfering light.

12. The lancing system according to claim 1 , wherein the light source is disposed in the housing.

13. The lancing system according to claim 1 , further comprising a carrier tape which carries the lancing elements.

14. The lancing system according to claim 1 , wherein the holder comprises two holding elements that are configured to be moved relative to one another, between which a lancing element of the plurality of lancing elements is held.

15. The lancing system according to claim 1 , wherein the housing is tapered in the puncture direction.

16. A lancing system, comprising:

a plurality of test elements each having a corresponding lancing element;

a housing having an outer surface and defining an inner enclosure;

a light-sensitive sensor disposed within the inner enclosure of the housing; and

a holder seated against the outer surface of the housing and collectively comprising a first holding element and a second holding element movably connected to each other, the holder configured to hold a testing element of the plurality of test elements.

17. The lancing system of claim 16 , wherein the outer surface of the housing further comprises a guide that slidably captures at least one of the first and second holding elements against the housing.

18. The lancing system of claim 16 , wherein the housing defines a window therethrough, wherein the holder is configured to position a test element of the test elements against the window in a starting position.