Needle Mounting System And A Method For Mounting A Needle Assembly

• US 20100211014A1
• Filed: 04/29/2010
• Published: 08/19/2010
• Est. Priority Date: 07/03/2002
• Status: Active Grant

• Current Assignee: Novo Nordisk A/S
• Original Assignee: Novo Nordisk A/S
• Inventors: Smedegaard, Jorgen K., Jensen, Jens Moller, Nielsen, Jan Frank, Jensen, Peter Moller, Klint, Henrik Sonderskov, Radmer, Jim
• Granted Patent: US 8,137,325 B2
• Time in Patent Office: Days
• US Class Current: 604/173
• 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
• CPC Class Codes: A61M 5/347 rotatable, e.g. bayonet or screw A61M5/344 takes precedence
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A needle mounting system and methods for mounting a needle assembly on a needle mount are disclosed. The needle mounting system includes a needle hub having protrusions extending radially inward. A needle mount has a plurality of slots to receive the protrusions. The slots have a first portion that defines a passageway substantially parallel to a longitudinal axis of the needle mount and a second portion substantially perpendicular to the axis. The needle hub and mount provide a method wherein a needle assembly may be mounted on an injection device without completely rotating the needle hub relative to the needle mount.

Claims

1. A mounting system for mounting two different needle arrangements, the mounting system comprising:

a threaded surface for threadedly coupling and threadedly mounting a needle assembly, and

a surface comprising L-shaped grooves for receiving a bayonet coupling on a medical device, thereby allowing the needle mount to fixedly attach to either a threaded assembly or a bayonet assembly.

2. The mounting system of claim 1 wherein the needle mount is incorporated into an adapter.

3. A needle assembly comprising:

a needle; and

a hub that is attached to the needle, the hub comprising;

an inner cylindrical hub wall; and

a plurality of protrusions extending radially inward from the hub wall wherein a part of the needle is located inside the boundaries of the interior cylindrical wall,

wherein a part of the needle is located inside the boundaries of the inner cylindrical wall.

4. The needle assembly according to claim 3, wherein the protrusions comprises a circular surface.

5. The needle assembly according to claim 3, wherein the protrusions extends perpendicular to a cylindrical axis.

6. The needle assembly according to claim 3, wherein the protrusions are located in the proximity of a proximal end of the hub opposite the top end.

7. The needle assembly according to claim 3, wherein the protrusions are sized to fit between threads of a standard ampoule adapter top and wherein the protrusions are arranged on the inner hub wall to align between the threads of the standard adapter top, thereby allowing the needle assembly to be screwed onto the adapter top.

8. The needle assembly of claim 7, wherein the protrusions are sized to fit between standard insulin needle assemblies.

9. A method for mounting a needle assembly to a needle mount, the method comprising:

i) inserting the needle mount into an interior hub of a needle assembly comprising;

a needle; and

a hub that is attached to the needle, the hub comprising;

an inner cylindrical hub wall;

a plurality of protrusions extending radially inward from the hub wall

wherein a part of the needle is located inside the boundaries of the inner cylindrical wall,

wherein the protrusions of the hub engage grooves of the needle mount, and wherein part of the needle in the needle assembly is located within the boundaries of the inner cylindrical wall enters into the needle mount following the cylindrical axis, and

ii) partially rotating the needle mount and the needle assembly relative to each other.

10. The method for mounting a needle assembly according to claim 9, wherein the needle mount and the needle assembly are rotated less than one revolution relative to each other.

11. The method for mounting a needle assembly according to claim 10, wherein the needle mount and the needle assembly are rotated between 5 and 60 degrees relative to each other.

12. The method for mounting a needle assembly according to claim 9, wherein the needle mount and the needle assembly are rotated between 5 and 30 degrees relative to each other.

13. A method of providing a user with a plurality of ways to attach a needle assembly to a medication containing apparatus having a needle mount, the method comprising:

supplying a needle mount on the medication containing apparatus,

supplying a first threaded needle assembly that mounts on the needle mount, and

supplying a second non-threaded needle assembly that attaches to the needle with an axial and rotation movement wherein the rotational movement is less than 360 degrees.

14. The method of claim 13 wherein the second non-threaded needle is secured via bayonet action.

15. A mount system for attaching to a distal end of an injection device a bayonet style connector in which a double point needle is disposed within a cylindrically shaped tubular element comprising an inner cylindrical wall from which one or more protrusions extend radially inward and a conventional a pen needle secured to conventional pen needle hub that comprises an inner surface for engaging a male thread mount disposed on an injection device, the mount system comprising:

a cylindrical wall on which the bayonet connector may be attached, the wall containing one or more grooves having a first longitudinal part and second part oriented at an angle to the first the system further comprising a male thread disposed on an outer surface at the distal end of the device the thread being complimentary to the female thread on the inner wall of the hub of the conventional needle thereby allowing a bayonet connection to be attached to the device and removed with less than a 90 degree rotation and then allowing a conventional needle hub to be secured and then removed by unscrewing the conventional needle from the device.

16. A mount system for attaching two different needle systems to an injection device having a distal, injecting end portion, one needle system being a conventional pen needle comprised of a hub in which a needle is disposed and wherein the hub contains an inner wall having an inner cylindrical call adapted for being screwed onto or off of a male thread so as to allow the hub to screwed on to the injection device at the distal end, the second needle system being a double pointed needle disposed within a tubular cylindrical element having a inner cylindrical wall and having inner radially extending protrusions that form a portion of a bayonet connector, the mount system comprising:

a first coupling comprised of a male thread disposed on the distal end portion with a male thread adapted for receiving the conventional pen needle, and

a second coupling comprised of cylindrical wall having a plurality of grooves having a longitudinal portion and a second portion extending at an angle from the longitudinal portion, grooves adapted to receive the tubular element and secure it to the device with only a partial rotation thereby allowing the injection device to have the conventional needle mounted after the bayonet connector is mounted and removed.