Ballistic Microneedle Infusion Device

• US 20140343502A1
• Filed: 07/31/2014
• Published: 11/20/2014
• Est. Priority Date: 11/30/2010
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Constantineau, Cole, Schoonmaker, Ryan, Bruehwiler, Michel, Ben, Eric
• Granted Patent: US 9,480,792 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2005/14264 with means for compensating influence from the environment
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1586 Holding accessories for holding infusion needles on the body holding devices for catheters A61M25/02
• CPC Class Codes: A61M 2205/0216 Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An infusion set has a disposable inserter that can insert a needle at a controlled rate of speed to a depth to deliver insulin or other medicament to the upper 3 mm of skin surface, and a skin securing, adhesive layer to secure the skin surface at the insertion site such that the inserter that can insert a needle without a risk of tenting of the skin surface. Position of the inserted needle can be maintained by providing a separated inner and outer hub of the infusion set that can isolate the inserted needle from external forces such that the needle can be maintained at a depth to deliver insulin or other medicament to the upper 3 mm of skin surface during normal use.

Claims

1. An infusion system, comprising:

an infusion set, comprising an inner hub and an outer hub wherein at least one of said inner hub and said outer hub is releasably secured by an inserter; and

an inserter comprising an inserter button and a spring, wherein said inserter button is configured to release said spring and drive said infusion set for placement at an infusion site.

2. An infusion system as recited in claim 1, further comprising:

a first adhesive layer disposed on a surface of said inner hub; and

a second adhesive layer disposed on a surface of said outer hub, wherein said first adhesive layer is separate from said second adhesive layer.

3. An infusion system as recited in claim 1, further comprising a flexible tube coupled between said inner hub and said outer hub and providing a fluid communication path therebetween.

4. An infusion system as recited in claim 1, wherein said inserter comprises:

a hammer, disposed at an end of said spring and configured for release by movement of said inserter button; and

a table, rotationally secured to said inner hub and configured to be struck by said hammer.

5. An infusion system as recited in claim 4, wherein said table is configured to releasably secure said inner hub in a retracted position within said outer hub.

6. An infusion system as recited in claim 4, wherein:

said table comprises a first detent; and

said inner hub comprises second detent, wherein said first detent is configured to rotationally engage with said second detent to releasably secure said table with said inner hub.

7. An infusion system as recited in claim 1, wherein said inserter further comprises a lower inserter housing, slidably coupled with said inserter button, and rigidly coupled with said outer hub.

8. An infusion system as recited in claim 7, wherein:

said outer hub comprises a third detent; and

said lower inserter housing comprises a fourth detent, wherein said third detent is configured to rotationally engage with said fourth detent to releasably secure said inserter with said outer hub.

9. An infusion system as recited in claim 1, wherein said spring is configured to place said infusion set at a controlled rate of speed, preferably greater than 3.3 ft/sec. (1.0 m/sec.).

10. An inserter, comprising:

an inserter button, and a lower inserter housing slidably coupled with said inserter button and configured to be coupled with an infusion set; and

a spring, captured between said inserter button and said lower inserter housing, wherein said inserter button is configured to release said spring to drive said infusion set for placement at an infusion site.

11. An inserter as recited in claim 10, wherein said spring is configured to place said infusion set at a controlled rate of speed, preferably greater than 3.3 ft/sec. (1.0 m/sec.).

12. An infusion set, comprising:

an inner hub and a first adhesive layer disposed on a surface of said inner hub; and

an outer hub a second adhesive layer disposed on a surface of said outer hub, wherein said first adhesive layer is separate from said second adhesive layer, wherein at least one of said inner hub and said outer hub is releasably secured by an inserter.

13. An infusion set as recited in claim 12, further comprising a flexible tube coupled between said inner hub and said outer hub and providing a fluid communication path therebetween.

14. An infusion set as recited in claim 12, wherein:

said inner hub comprises first detent, wherein said first detent is configured to rotationally engage with a detent of an inserter to releasably secure said inserter with said inner hub; and

said outer hub comprises a second detent, wherein said second detent is configured to rotationally engage with a detent of said inserter to releasably secure said inserter with said outer hub.