Claims
- 1. A device for fluid delivery comprising:
a plurality of needles having channels defining a fluid flow path; and at least one chamber which is selectably in fluid communication with the plurality of needles.
- 2. The device of claim 1 wherein the plurality of needles are connected and aligned along a common axis.
- 3. The device of claim 1 wherein the plurality of needles are detachably connected.
- 4. The device of claim 1 wherein a plurality of fluids can be delivered simultaneously.
- 5. The device of claim 1 wherein a plurality of fluids can be delivered sequentially.
- 6. The device of claim 1 wherein the plurality of needles comprise a plurality of dispensing ends located in approximately the same plane.
- 7. The device of claim 1 wherein the plurality of needles comprises a contact needle array.
- 8. The device of claim 7 further comprising at least one dispensing needle array that is mounted within the contact needle array.
- 9. The device of claim 8 wherein the at least one dispensing needle array comprises at least one reservoir.
- 10. The device of claim 1 further comprising a sensing array.
- 11. The device of claim 10 wherein the sensing array comprises a chamber and at least one sensor circuit.
- 12. The device of claim 1 wherein the contact array comprises at least one reservoir in fluid communication with the contact array.
- 13. A method for fluid delivery comprising:
providing a plurality of needles having channels, defining a fluid flow path; and connecting the plurality of needles.
- 14. The method of claim 13 further comprising connecting the plurality of needles such that the channels are aligned along a common axis.
- 15. The method of claim 14 further comprising detachably connecting the plurality of needles.
- 16. The method of claim 13 further comprising connecting the plurality of needles to a fluid source.
- 17. The method of claim 13 further comprising connecting the needles to a plurality of fluid sources.
- 18. The method of claim 13 further comprising mixing a plurality of fluids.
- 19. The method of claim 13 further comprising delivering a fluid across a biological barrier.
- 20. The method of claim 19 further comprising delivering a drug to a patient across tissue of the patient.
- 21. The method of claim 13 further comprising providing a first needle array connected to a first reservoir and a first fluid source and a second needle array connected to a second reservoir and a second fluid source.
- 22. The method of claim 13 further comprising providing a pump that pumps fluid through the needles.
- 23. The method of claim 13 further comprising providing a sensor that detects a fluid.
- 24. The method of claim 13 further comprising controlling fluid flow with a control circuit.
- 25. The method of claim 13 further comprising reacting a first fluid and a second fluid.
- 26. The method of claim 13 further comprising delivering a plurality of drugs through the skin of a patient.
- 27. The method of claim 13 further comprising removing fluid from a site with the needle array.
- 28. A drug flow device comprising:
a first needle array; and a second needle array in fluid communication with the first needle array such that a drug can be conducted along a path through the first needle array and the second needle array.
- 29. The device of claim 28 further comprising alignment pins, wherein the alignment pins provide alignment between the first needle array and the secondary needle array.
- 30. The device of claim 28 further comprising needles having distal ends with a diameter in a range of 30-80 microns.
- 31. The device of claim 28 wherein the needles having a length in a range of 100-1000 microns.
- 32. The device of claim 28 wherein the first array has a first taper and the second array has a second taper.
- 33. The device of claim 28 further comprising a sensor circuit that measures a fluid in the device.
- 34. The device of claim 28 further comprising an actuator that controls fluid flow in the device.
- 35. The device of claim 28 further comprising a control circuit that controls the device.
- 36. The device of claim 28 further comprising a plurality of fluid pathways extending through a plurality of coaxially positioned needles.
- 37. The device of claim 28 further comprising a pump to deliver fluid through the device.
- 38. The device of claim 28 further comprising a seal between the first array and the second array.
- 39. The device of claim 28 further comprising a circuit board mounted on the device.
- 40. The device of claim 28 further comprising a laminated structure having at least three arrays of metal needles.
RELATED APPLICATION(S)
[0001] This application claims the benefit of U.S. Provisional Application No. 60/174,023, filed on Dec. 30, 1999, the entire teachings of the above application being incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60174023 |
Dec 1999 |
US |