Medical devices and kits including same

• US 20070083151A1
• Filed: 12/14/2004
• Published: 04/12/2007
• Est. Priority Date: 12/29/2003
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Carter, Chad
• Application Number:
  US10/596,874
• Publication Number:
  US 20070083151A1
• Time in Patent Office: Days
• US Class Current: 604/46
• CPC Class Codes: A61B 17/205 Vaccinating by means of needles or other puncturing devices
• CPC Class Codes: A61B 2010/008 Interstitial fluid
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61M 2037/0023 Drug applicators using microneedles
• CPC Class Codes: A61M 37/0015 by using microneedles
• CPC Class Codes: A61M 5/002 Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001

Abstract

A medical device is described, comprising an array (10) comprising microstructures (12) configured to penetrate the stratum corneum upon impact, and a connection member (20) affixed to the array in a one piece construction, the connection member configured to reversibly connect the medical device to an applicator. The medical devices of the invention may be used in methods requiring the penetration of skin to deliver medicaments or other substances and/or extract blood or tissue through the skin. In use, it is generally desirable to provide the microstructures at a height sufficient to penetrate the stratum corneum. A medical kit is also described, comprising the foregoing medical device and a tray (34) configured to hold the medical device.

Claims

1. A medical device, comprising:

An array comprising microstructures configured to penetrate the stratum corneum upon impact;

A connection member affixed to the array in a one piece construction, the connection member configured to reversibly connect the medical device to an applicator.

2. The medical device as in claim 1, the array further comprising a collar having first and second major surfaces, the microstructures disposed on and affixed to the first major surface and the connection member disposed on and affixed to the second major surface.

3. The medical device as in claim 2, wherein the microstructures comprise a plurality of identically configured members.

4. The medical device as in claim 3, wherein the microstructures are in a circular array.

5. The medical device as in claim 4 wherein the collar is circular and the first major surface comprises a first zone extending from the center of the first major surface, the microstructures disposed within the first zone, and a second zone extending from the first zone to the periphery of the first major surface, the second zone being free of the microstructures.

6. The medical device as in claim 1 wherein the connection member comprises a plurality of leg members having first and second ends thereon, the first ends of the leg members affixed to the array and the second ends of the leg members configured to reversibly connect the medical device to an applicator.

7. The medical device as in claim 6 wherein the connection member comprises three leg members.

8. The medical device as in claim 1 wherein the connection member comprises a single structure having first and second ends thereon, the first end of the connection member affixed to the array and the second end of the connection member configured to reversibly connect the medical device to an applicator.

9. The medical device as in claim 1 wherein the connection member is configured to reversibly connect the device to an applicator by an interference fit.

10. A molded medical device comprised of molded polymeric material and constructed as in claim 1.

11. The molded device of claim 10 wherein the molded polymeric material is selected from the group consisting of polycarbonate, polyetherimide, polyethylene terephthalate, and blends thereof.

12. A medical kit, comprising:

The medical device of claim 1;

and

A tray configured to hold the medical device.

13. The medical kit as in claim 12 wherein the tray comprises a first surface and at least one well configured to hold a medical device therein, the well comprising an opening in the first surface so that the medical device, when positioned within the well, is accessible through the opening in the first surface.

14. The medical kit as in claim 13 further comprising a plurality of wells, each well being similarly configured to hold a single medical device therein.

15. The medical kit as in claim 12 wherein the array of the medical device further comprises a collar having first and second major surfaces, the microstructures disposed on and affixed to the first major surface and the connection member disposed on and affixed to the second major surface.

16. The medical kit as in claim 15 wherein the first major surface of the collar comprises a first zone extending from the center of the first major surface, the microstructures disposed within the first zone, and a second zone extending from the first zone to the periphery of the first major surface, the second zone being free of the microstructures.

17. The medical kit as in claim 16 wherein the first surface of the tray defines a substantially planar surface and wherein the well further comprises a shoulder configured to rest against the second zone of the first major surface of the collar without engaging the microstructures in the first zone, the well extending away from the first surface of the tray.

18. The medical kit as in claim 17 wherein the tray further comprises a sealing member disposed over the opening in the first surface to hermetically seal the well when the medical device is retained therein, the sealing member being removable or breakable to permit withdrawal of the medical device from the well.