FLUID DELIVERY AND MEASUREMENT SYSTEMS AND METHODS

• US 20090093763A1
• Filed: 12/16/2008
• Published: 04/09/2009
• Est. Priority Date: 11/30/2000
• Status: Active Grant

• Current Assignee: Mannkind Corporation
• Original Assignee: Valeritas, Inc. (Zealand Pharma A/S)
• Inventors: Levesque, Steven F., Lipson, David, Marshall, Peter F., Gonnelli, Robert R.
• Granted Patent: US 8,858,511 B2
• Time in Patent Office: Days
• US Class Current: 604/141
• CPC Class Codes: A61M 2005/14204 with gas-producing electrochemical cell
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/14264 with means for compensating influence from the environment
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8231 using electrochemical gas generating device for the driving gas
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/145 using pressurised reservoirs, e.g. pressurised by means of pistons
• CPC Class Codes: A61M 5/14526 the piston being actuated by fluid pressure
• CPC Class Codes: A61M 5/14593 the diaphragm being actuated by fluid pressure
• CPC Class Codes: A61M 5/1483 using flexible bags externally pressurised by fluid pressure
• CPC Class Codes: A61M 5/155 pressurised by gas introduced into the reservoir
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/16804 Flow controllers
• 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

Abstract

Fluid delivery and measurement systems and methods are disclosed.

Claims

1. A fluid delivery device comprising:

a first housing having an interior;

a flexible member within the interior of the first housing and mechanically coupled to the first housing, the flexible member forming first and second chambers within the interior of the first housing;

a gas generator in fluid communication with the flexible member via the first chamber of the first housing;

a microprobe connected to the first housing such that when the gas generator produces a gas pressure sufficient to move the flexible member a portion of a fluid disposed in the second chamber is ejected via the microprobe;

a second housing in fluid communication with the first chamber of the first housing so that the second housing is capable of increasing the pressure in the first chamber of the first housing to increase a rate of fluid ejection via the microprobe.

2. The device of claim 1, wherein the microprobe is mechanically coupled to the flexible member.

3. The device of claim 1, wherein the microprobe comprises a needle.

4. The device of claim 1, wherein the microprobe comprises a microneedle.

5. The device of claim 1, wherein the flexible member comprises a septum.