Method and devices for pressure determination in an insulin pump

1. A method for connecting a force sensor to a circuit board of an insulin pump, comprising:

a) providing a circuit board having first and second conductive leads located on the same surface of the circuit board;

b) providing a force sensor with a first flexible contact tab having a first contact pad and a second flexible contact tab having a second contact pad, wherein the first contact pad and the second pad are arranged opposite each other;

c) arranging the first contact pad to face the first conductive lead;

d) arranging a first conductive rubber element to establish an electrical connection between the first contact pad and the first conductive lead, wherein the first conductive rubber element is sandwiched between the first contact tab and the circuit board;

e) arranging the second contact pad and the second conductive lead to face in a same direction; and

f) arranging a second conductive rubber element to establish an electrical connection between the second contact pad and the second conductive lead, wherein a first side of the second conductive rubber element electrically contacts the second contact pad and also electrically contacts the second conductive lead.

2. The method according to claim 1 , wherein a first side of the first conductive rubber element electrically contacts the first contact pad and wherein a second, opposing side of the first conductive rubber element electrically contacts the first conductive lead.

3. The method according to claim 1 , wherein the second conductive rubber element partially overlaps the second contact tab and the second conductive lead.

4. The method according to claim 1 , wherein a backside of the second contact tab physically contacts the circuit board.

5. A device for determining fluid pressure in an insulin pump, the device comprising:

a circuit board having first and second conductive leads located on the same surface of the circuit board;

a force sensor with a first flexible contact tab having a first contact pad and a second flexible contact tab having a second contact pad, wherein the first contact pad and the second pad are arranged opposite each other;

a first conductive rubber element that establishes an electrical connection between the first contact tab and the first conductive lead; and

a second conductive rubber element that establishes an electrical connection between the second contact tab and the second conductive lead, wherein the second contact pad and the second conductive lead face in a same direction;

wherein the first conductive rubber element is sandwiched between the first contact tab and the circuit board and further wherein a first side of the second conductive rubber element electrically contacts the second contact pad and also electrically contacts the second conductive lead.

6. The device according to claim 5 , further comprising a housing in which the circuit board and force sensor are fully or partially arranged.

7. The device according to claim 6 , wherein the housing comprises a first cavity configured for receiving the first conductive rubber element and a second cavity configured for receiving the second conductive rubber element.

8. The device according to claim 5 , wherein a first side of the first conductive rubber element electrically contacts the first contact pad and wherein a second, opposing side of the first conductive rubber element electrically contacts the first conductive lead.

9. The device according to claim 5 , wherein the second conductive rubber element partially overlaps the second contact tab and the second conductive lead.

10. The device according to claim 5 , wherein the second conductive rubber element compensates for a height difference between the second contact pad and the second conductive lead.

11. The device according to claim 5 , wherein a backside of the second contact tab physically contacts the circuit board.

12. An insulin pump, comprising:

an insulin reservoir;

a pump module configured for delivering insulin to a user; and

the device for determining fluid pressure in an insulin pump according to claim 5 .

13. The insulin pump according to claim 12 , further comprising a controller operatively connected to the device for determining fluid pressure in the insulin pump, the controller configured to detect an occlusion in the insulin pump by using at least one signal provided by the device for determining the pressure of the fluid in the insulin pump.

14. A device for determining fluid pressure in an insulin pump, the device comprising:

a circuit board having first and second conductive leads located on a same surface of the circuit board;

a force sensor with a first flexible contact tab having a first contact pad and a second flexible contact tab having a second contact pad;

a first conductive rubber element sandwiched between the first contact tab and the circuit board, wherein a first side of the first conductive rubber element electrically contacts the first contact pad and a second, opposing side of the first conductive rubber element electrically contacts the first conductive lead, thereby establishing an electrical connection between the first contact tab and the first conductive lead; and

a second conductive rubber element that establishes an electrical connection between the second contact tab and the second conductive lead;

wherein a first side of the second conductive rubber element electrically contacts the second contact pad and also electrically contacts the second conductive lead.

15. The device according to claim 14 , wherein the first contact tab is arranged on an upper side of the first rubber element relative to the circuit board and the second contact tab is arranged on a lower side of the second rubber element relative to the circuit board.

16. The device of claim 14 , wherein the second contact tab is at least partially sandwiched between the second conductive rubber element and the circuit board.

17. The device according to claim 14 , further comprising a housing having a first cavity configured for receiving the first conductive rubber element and a second cavity configured for receiving the second conductive rubber element.

18. The device according to claim 14 , wherein the second conductive rubber element partially overlaps the second contact tab and the second conductive lead.