Microneedle Systems and Apparatus

• US 20090099522A1
• Filed: 08/25/2008
• Published: 04/16/2009
• Est. Priority Date: 08/24/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Kamen, Dean, Gray, Larry B.
• Granted Patent: US 11,154,698 B2
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2037/0061 Methods for using microneedles
• CPC Class Codes: A61M 37/0015 by using microneedles

Abstract

A medical system. The medical system includes at least one compartment for a fluid, a fluid path and at least one microneedle fluidly connected to the at least one compartment by the fluid path. A medical infusion system is also disclosed. The system includes a wearable housing, at least one non-pressurized compartment for a fluid contained within the housing, at least one fluid path fluidly connected to the at least one compartment and at least one microneedle fluidly connected to the at least one compartment by the fluid path wherein the fluid path extends through the microneedle.

Claims

1. A medical system comprising:

at least one compartment for a fluid;

a fluid path; and

at least one microneedle fluidly connected to the at least one compartment by the fluid path.

2. The medical system of claim 1 wherein the compartment is a non-pressurized compartment.

3. The medical system of claim 1 wherein the fluid path extends through the microneedle.

4. The medical system of claim 1 wherein at least one microneedle is an analyte sensor.

5. The medical system of claim 1 wherein the at least one microneedle having at least two appendages whereby the appendages provide for microneedle retention in a patient.

6. The medical system of claim 1 wherein the at least one compartment for a fluid is contained within a housing.

7. The medical system of claim 6 wherein the housing is a wearable housing.

8. The medical system of claim 6 wherein the housing is an infusion pump.

9. A medical infusion system comprising:

a wearable housing;

at least one non-pressurized compartment for a fluid contained within the housing;

at least one fluid path fluidly connected to the at least one compartment; and

at least one microneedle fluidly connected to the at least one compartment by the fluid path wherein the fluid path extends through the microneedle.

10. The medical infusion system of claim 9 wherein the at least one microneedle comprising a body portion and at least two appendages whereby said appendages provide for microneedle retention in a patient.

11. The medical infusion system of claim 10 wherein the body portion is made from a first material and the appendages are made from a second material wherein the second material is different from the first material and wherein the second material is dissolvable in a patient.

12. The medical infusion system of claim 9 further comprising at least one microneedle analyte sensor connected to a path, wherein the path is connected to the wearable device.

13. A medical infusion and sensing system comprising:

a wearable housing;

at least one non-pressurized compartment for a fluid contained within the housing;

at least one fluid path fluidly connected to the at least one compartment;

at least one microneedle fluidly connected to the at least one compartment by the fluid path wherein the fluid path extends through the microneedle; and

at least one microneedle analyte sensor attached to a path, the path attached to the housing.

14. The medical infusion and sensing system of claim 13 wherein the wearable housing comprising a reusable portion and a disposable portion.

17. The medical infusion and sensing system of claim 13 wherein the at least one compartment comprising at least one flexible portion.

18. The medical infusion and sensing system of claim 13 wherein the at least one compartment comprising a septum.

19. The medical infusion and sensing system of claim 13 further comprising a pumping mechanism for pumping fluid from the at least one compartment through the fluid path.

20. The medical infusion and sensing system of claim 19 wherein the pumping mechanism is actuated using at least one shape memory actuator.

15. The medical infusion and sensing system wherein the at least one microneedle comprising a body portion and at least two appendages whereby said appendages provide for microneedle retention in a patient.

16. The medical infusion system of claim 15 wherein the body portion is made from a first material and the appendages are made from a second material wherein the second material is different from the first material and wherein the second material is dissolvable in a patient.