Drug delivery device

• US 20070270750A1
• Filed: 05/17/2006
• Published: 11/22/2007
• Est. Priority Date: 05/17/2006
• Status: Abandoned Application

• Current Assignee: Alcon Incorporated
• Original Assignee: Alcon Incorporated
• Inventors: Dacquay, Bruno, Zica, Michael A.
• Application Number:
  US11/435,906
• Publication Number:
  US 20070270750A1
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61F 9/0017 implantable in, or in contact with, the eye, e.g. ocular inserts
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8262 connectable to external power source, e.g. connecting to automobile battery through the cigarette lighter
• CPC Class Codes: A61M 2210/0612 Eyes
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/484 Regulating injection pressure

Abstract

A syringe-like device having a drug dispensing tip connected to a motorized handpiece. The tip may be packaged pre-loaded with an amount of a liquid or phase transition drug or may be shipped empty and loaded with a liquid or phase transition drug by the user. The motorized handpiece contains suitable sensors and controllers for precisely actuating the tip for the controlled delivery of the liquid or phase transition drug in the tip. The handpiece by contain an internal power source, such as a battery, or may be connected to an external power source and/or control unit.

Claims

1. A drug delivery device, comprising:

a) a handpiece;

b) a tip having a body, the body being removably attached to the handpiece;

c) a cannula generally located on the body opposite the handpiece;

d) a plunger located in the tip body; and

e) a drive mechanism located in the handpiece, the drive mechanism providing movement of the plunger when the tip is connected to the handpiece.

2. The drug delivery device of claim 1 wherein the drive mechanism comprises a piezoelectric linear motor.

3. The drug delivery device of claim 1 wherein the handpiece further comprises an internal power source for the drive mechanism.

4. The drug delivery device of claim 1 wherein the handpiece further comprises internal control electronics for the drive mechanism.

5. The drug delivery device of claim 1 further comprising external control electronics for the drive mechanism.

6. The drug delivery device of claim 1 wherein the handpiece further comprises an external power source for the drive mechanism.