Means for administering an injectable product in doses

• US 20050043676A1
• Filed: 07/30/2004
• Published: 02/24/2005
• Est. Priority Date: 02/01/2002
• Status: Abandoned Application

• Current Assignee: Disetronic Licensing Ag (Roche Holding AG)
• Original Assignee: Disetronic Licensing Ag (Roche Holding AG)
• Inventors: Remde, Axel, Heiniger, Hanspeter
• Application Number:
  US10/909,256
• Publication Number:
  US 20050043676A1
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: G01L 5/0052 measuring forces due to impact G01L5/0061, G01L5/14 take precedence; impact testing of structures G01M7/08; impact testing of material G01N3/00
• CPC Class Codes: G01M 1/16 by oscillating or rotating the body to be tested
• CPC Class Codes: G01M 1/32 by adding material to the body to be tested, e.g. by correcting-weights

Abstract

A device for dispensing precise amounts of a substance including at least one detector coupled to the device for detecting accelerations, wherein the detector device is triggered and/or read in a continuous or clocked manner and reversibly or irreversibly changes an indicator when a selected acceleration threshold is exceeded.

Claims

1. A device for administering an injectable product in doses, comprising a casing, a container for storing the injectable product and an administering mechanism for administering the product in doses comprising at least one detector means for detecting accelerations, wherein the at least one detector means is rigidly connected to the casing.

2. The device as set forth in claim 1, wherein the device is an infusion pump.

3. The device as set forth in claim 1, wherein the detector means changes a state when a detected acceleration exceeds a predetermined threshold value.

4. The device as set forth in claim 3, wherein the detector means comprises a glass capillary comprising a measurement area which changes from a first color to a second, different color when the detected acceleration exceeds the predetermined threshold value.

5. The device as set forth in claim 4, wherein the glass capillary is exchangeably inserted into a viewing window associated with the casing, such that the glass capillary is visible from outside the casing.

6. The device as set forth in claim 4, wherein the first and second colors comprise color values which are detected by means of a light detector array comprising a light-emitting element and a light-receiving element and which is controlled by a reading impulse of a control circuit.

7. The device as set forth in claim 6, wherein the reading impulse is generated by a pump control system, synchronously with the administering of the injectable product.

8. The device as set forth in claim 7, wherein the reading impulse is generated periodically.

9. The device as set forth in claim 3, wherein the detector means either reversibly or irreversibly changes a resistance value in a measurement area when the detected acceleration exceeds the predetermined threshold value.

10. The device as set forth in claim 9, wherein the detector means comprises a glass capillary with a thin wire which tears when the detected acceleration exceeds the predetermined threshold value.

11. The device as set forth in claim 9, wherein the detector means comprises a glass capillary with a liquid, which comprises at least two electrodes, wherein the liquid changes its resistance value between at least two electrodes in a measurement area when the detected acceleration exceeds the predetermined threshold value.

12. The device as set forth in claim 11, wherein the resistance value is detected by means of a resistance measurement circuit which is controlled by a reading impulse of a control circuit.

13. The device as set forth in claim 12, wherein the resistance measurement circuit is a Wheatstone bridge circuit.

14. The device as set forth in claim 12, wherein the reading impulse is generated by a pump control system, synchronously with the administering of the injectable product.

15. The device as set forth in claim 14, wherein the reading impulse is generated periodically.

16. The device as set forth in claim 3, further comprising a storage means for storing a time data value which indicates when the detector means changed its state.

17. The device as set forth in claim 3, wherein the control circuit controls an external display when the detected acceleration exceeds the predetermined threshold value.

18. The device as set forth in claim 1, wherein the detector means reversibly changes a state when a detected acceleration exceeds a predetermined threshold value.

19. The device as set forth in claim 18, wherein the detector means comprises an acceleration switch which reversibly changes an electrical switching state when the detected acceleration exceeds the predetermined threshold value.

20. The device as set forth in claim 19, wherein the acceleration switch is non-conductive in a normal state.

21. The device as set forth in claim 20, wherein the acceleration switch forms an input of a control and evaluation circuit which detects the changed switching state of the acceleration switch.

22. The device as set forth in claim 1, wherein the detector means either detects accelerations continuously or detects continuous values.

23. The device as set forth in claim 1, wherein the detector means comprises a piezo-electrical sensor with a subsequent charge amplifier.

24. The device as set forth in claim 3, further comprising a control and evaluation circuit provided with a comparator means in order to determine whether the detected acceleration exceeds the predetermined threshold value.

25. The device as set forth in claim 24, wherein the control and evaluation circuit comprises a storage means for storing a number of discrete data sets which each indicate that the detected acceleration in each case exceeds the predetermined threshold value.

26. The device as set forth in claim 25, wherein the evaluation circuit is configured to assign each data set at least one of a time value when the detected acceleration exceeds the predetermined threshold value, a period of time during which the detected acceleration exceeds the predetermined threshold value, and the value of the detected acceleration.

27. The device as set forth in claim 26, further comprising memory means for storing a number of data sets, wherein the data sets are ordered according to the value of the detected acceleration, and the data set with the smallest value for the detected acceleration in each case is replaced by a stored data set when the value for the detected acceleration is larger than the acceleration of the data set with the smallest value for the detected acceleration in each case, and wherein a data set with the currently detected acceleration is stored.

28. The device as set forth in claim 1, further comprising a display means for indicating a detected acceleration.

29. The device as set forth in claim 1, wherein the at least one detector means responds isotropically to accelerations.

30. The device as set forth in claim 1, wherein the at least one detector means responds direction-dependently to accelerations.

31. The device as set forth in claim 30, wherein two or three detector means are provided which respond to accelerations along respective mutually orthogonal directions.

32. The device as set forth in claim 30, wherein the at least one detector means is orientated parallel to a printed circuit board which has an associated control circuit for the device.

33. The device as set forth in claim 1, wherein the device is a portable infusion means for dispensing a medical active agent long-term in doses.

34. The device as set forth in claim 33, wherein the medical active agent is insulin.

35. The device as set forth in claim 33, wherein the product is dispensed through a 31 gauge needle.

36. A device for dispensing precise amounts of a substance comprising at least one detector operably coupled to the device and at least one indicator operably coupled to the device and to the detector, said detector for detecting accelerations, wherein the detector is at least one of triggered and read in one of a continuous or clocked manner and prompts the indicator to change when a selected acceleration is detected.

37. The device according to claim 36, wherein the change is either reversible or irreversible.

38. Means for administering an injectable product in doses, comprising a container for storing the injectable product and an administering mechanism for administering the product in doses, comprising at least one detector means for detecting accelerations, wherein each detector means is rigidly connected to a casing section of the means for administering.

39. A device for dispensing precise amounts of a substance, said device comprising a detector operably coupled to the device and an indicator operably coupled to the device and to the detector, said detector for detecting accelerations, wherein the detector is at least one of triggered and read in one of a continuous or clocked manner and prompts the indicator to change when a selected acceleration is detected.

40. The device as set forth in claim 39, wherein the indicator comprises a measurement area which changes from a first color to a second, different color when a detected acceleration exceeds the selected acceleration.

41. The device as set forth in claim 40, wherein the detector comprises a light detector array operably coupled to the measurement area and comprising a light-emitting element and a light-receiving element, said array controlled by a reading impulse of a control circuit associated with the device.

42. The device as set forth in claim 39, wherein the detector either reversibly or irreversibly prompts a change in a resistance value in a measurement area when a detected acceleration exceeds the selected acceleration.

43. The device as set forth in claim 42, wherein the detector comprises a thin wire which tears when the detected acceleration exceeds the selected acceleration.

44. The device as set forth in claim 39, wherein the detector comprises an acceleration switch which changes an electrical switching state when a detected acceleration exceeds the selected acceleration.

45. The device as set forth in claim 39, further comprising a control and evaluation circuit comprising a comparator for determining whether a detected acceleration exceeds the selected acceleration.

46. The device as set forth in claim 45, wherein the control and evaluation circuit comprises a storage means for storing a number of discrete data sets which each indicate that the detected acceleration in each case exceeds the selected acceleration.

47. The device as set forth in claim 46, wherein the control and evaluation circuit is configured to assign each data set at least one of a time value when the detected acceleration exceeds the selected acceleration, a period of time during which the detected acceleration exceeds the selected acceleration, and the value of the detected acceleration.

48. The device as set forth in claim 47, further comprising means for storing a number of data sets, wherein the data sets are ordered according to the magnitude of the detected acceleration, and the data set with the smallest magnitude for the detected acceleration in each case is replaced by a stored data set in which the magnitude for the detected acceleration is larger than the acceleration of the data set with the smallest magnitude for the detected acceleration in each case, and wherein a data set with a currently detected acceleration is stored.