INTRADERMAL DELIVERY DEVICE INCLUDING A NEEDLE ASSEMBLY

• US 20150231338A1
• Filed: 12/19/2014
• Published: 08/20/2015
• Est. Priority Date: 10/14/1999
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Alchas, Paul G.
• Granted Patent: US 9,750,897 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61D 7/00 Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals for reproduction or fertilisation A61D19/00 ; devices for implanting pellets, radon seeds or the like A61M37/0069
• CPC Class Codes: A61M 2202/0445 Proteins
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• CPC Class Codes: A61M 5/282 by compression of deformable ampoule or carpule wall
• CPC Class Codes: A61M 5/3202 Devices for protection of the needle before use, e.g. caps A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/3278 Apparatus for destroying used needles or syringes needle resheathing means destroying the needle A61M5/321
• CPC Class Codes: A61M 5/46 having means for controlling depth of insertion

Abstract

A drug delivery device including a needle assembly facilitates making intradermal injections using a variety of drug container types such as a syringe. A hub supports the needle while a limiter surrounds the needle. The limiter includes a skin engaging surface that is adapted to be received against the skin of an animal to be intradermally injected. A forward end of the needle extends beyond the skin engaging surface a selected distance to limit a depth that the needle penetrates into the animal'"'"'s skin.

Claims

1. An intradermal delivery device for use in making intradermal injections, comprising:

a drug container formed of glass having a reservoir adapted to contain a selected substance and an outlet port that allows the substance to exit the reservoir during an injection;

a needle having a fixed length wherein said fixed length selected to be suitable for handling during manufacture of said intradermal delivery device;

wherein said needle is placed within the outlet port, the needle having a forward end that is adapted to penetrate an the skin of an animal; and

an limiter integrally formed on said drug container that is substantially located at a distal end of the needle and said limiter surrounds the needle and is fixed with respect to said outlet port and said limiter has a skin engaging surface that is adapted to be placed against the skin of the animal to receive an intradermal injection, the needle forward end extending away from the skin engaging surface a preselected distance from 0.5 mm to 3.0 mm which is set during manufacture of the intradermal delivery device such that the limiter limits an amount that the needle forward end penetrates the skin which is equivalent to the preselected distance and wherein the preselected distance is substantially less than the needle fixed length.

2. The device of claim 1, wherein the drug container is a syringe including a generally hollow, cylindrical body portion and a plunger that is received within the reservoir, the plunger being selectively movable within the reservoir to cause the substance to be forced out of the outlet port during an injection.

3. The device of claim 1, including an integrally formed hub portion that supports the needle and the hub portion is secured to the drug container near the outlet port.

4. The device of claim 1, wherein the skin engaging surface is generally flat and extends through a plane that is generally perpendicular to an axis of the needle.

5. The device of claim 1, wherein the skin engaging surface includes a central opening that is slightly larger than an outside dimension of the needle and the skin engaging surface is continuous.

6. The device of claim 1, wherein the skin engaging surface includes a contact surface area that is large enough to stabilize the assembly in a desired orientation relative to the skin.