NEEDLE ASSEMBLY

• US 20130053791A1
• Filed: 08/06/2012
• Published: 02/28/2013
• Est. Priority Date: 08/31/2011
• Status: Active Grant

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Inventors: Clark, Geoff
• Granted Patent: US 9,861,383 B2
• Time in Patent Office: Days
• US Class Current: 604/272
• CPC Class Codes: A61B 17/3401 Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia local anaesthesia A61M19/00
• CPC Class Codes: A61M 2205/586 Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 5/3293 characterised by features of the needle hub

Abstract

A needle assembly has a needle hub that has a body to which are formed two plates at opposite sides thereof in a parallel relationship. The plates have respective upper edges and lower edges that lie substantially along respective planes, so that the needle hub may be stably placed onto a surface by means of the respective edges. The plates also prevent the rolling of the needle between the fingers of the clinician when the clinician holds the needle assembly by means of the plates. A partition is formed orthogonally proximate to the front ends of the parallel plates. The connector at the proximal portion of the needle hub is configured to have a non-conventional configuration that allows it to mate only with a counterpart connector that has a complementary non-conventional configuration.

Claims

1. Needle assembly, comprising:

a needle hub having a main body having a distal portion and a proximal portion, a needle extending from the distal portion;

two plates secured to opposite sides of the distal portion in parallel to each other, the respective top edges and the respective bottom edges of the two plates along the longitudinal axis of the needle hub being in substantial corresponding coplanar alignment so that the respective top edges and the respective bottom edges of the two plates provide corresponding top and bottom supports for the needle hub on a flat surface, the needle hub further having a partition positioned orthogonal to the longitudinal axis of the needle hub proximate to the two plates, the top edge of the partition being in substantial coplanar relationship with the respective top edges of the two plates and the bottom edge of the partition being in coplanar relationship with the respective bottom edges of the two plates so that the top and bottom edges of the partition provide respective additional top and bottom supports for the needle hub on the flat surface;

wherein a user can readily and firmly grasp the needle assembly by grasping the respective outer surfaces of the two plates; and

wherein the partition provides a stop for the fingers of the user and prevents the fingers from inadvertently making contact with the needle.

2. Needle assembly of claim 1, wherein the proximal portion of the needle hub comprises a connector having an opening, the connector having a non-conventional configuration that enables it to be coupled only to a counterpart connector having a non-conventional complementary configuration but not to a counterpart connector of a conventional configuration.

3. Needle assembly of claim 2, wherein the connector comprises two protuberances formed at opposite sides of the proximal portion proximate to the needle hub, the opening of the connector having a dimension that prevents the connector from mating with a conventional counterpart connector.

4. Needle assembly of claim 2, wherein the connector comprises a keyway to guide the insertion of a stylet into the needle.

5. Needle assembly of claim 1, wherein the partition has a notch that extends inwardly from its top edge, the notch providing a line of sight that extends between the two plates to the tip of the needle, the notch providing a sight guide to the user for correctly inserting the needle into a patient, and the partition provides a stop for the fingers of the user to push the needle into the patient.

6. Needle assembly of claim 1, wherein the needle is a spinal needle.

7. Needle assembly of claim 1, wherein the needle is an epidural needle.

8. Needle assembly, comprising:

a needle;

a hub having an opened proximal end and a closed distal end, the needle extending from the distal end, the hub having

two plates secured to opposite sides of the hub in parallel to each other, the respective top edges and the respective bottom edges of the two plates being in correspondingly substantial co-planar alignment so that the respective top edges and the respective bottom edges of the two plates provide corresponding top and bottom supports for the needle hub on a flat surface,

a partition positioned orthogonal to a longitudinal axis of the hub proximate to the two plates, the top edge of the partition being in substantial coplanar relationship with the respective top edges and the bottom edge of the partition being in substantial coplanar relationship with the respective bottom edges of the two plates;

connector means at the opened proximal end having a non-conventional configuration that enables it to be coupled only to a counterpart connector having a non-conventional complementary configuration but not to a counterpart connector having a conventional configuration.

9. Needle assembly of claim 8, wherein the top and bottom edges of the partition provide respective additional top and bottom supports for the needle hub on the flat surface;

and

wherein a user can readily and firmly grasp the needle assembly by grasping the respective outer surfaces of the two plates to insert the needle into a patient.

10. Needle assembly of claim 8, wherein the connector means comprises two protuberances formed at opposite sides of the hub proximate to the opened proximal end, the opened proximal end having a dimension that prevents the connector from mating with a conventional counterpart connector.

11. Needle assembly of claim 8, wherein the partition has a notch that extends inwardly from its top edge, the notch providing a line of sight that extends from a space defined between the two plates to the tip of the needle, the notch providing a sight guide to the user for correctly inserting the needle into a patient, and the partition provides a stop for the fingers of the user to push the needle into the patient and to prevent the fingers of the patient from inadvertently making contact with the needle.

12. Needle assembly of claim 8, wherein the needle is a spinal needle.

13. Needle assembly of claim 8, further comprising a keyway at the opened proximal end to guide the insertion of a stylet into the needle.

14. Needle assembly of claim 8, wherein the needle is an epidural needle.