US 12,251,279 B1
Endodontic irrigation needle with apical plug and methods of use
Mohammed Abdullah Alshehri, Riyadh (SA); Ibraheem Rshood Alqwizany, Riyadh (SA); and Hesham Abdullah Alzedan, Riyadh (SA)
Assigned to KING SAUD UNIVERSITY, Riyadh (SA)
Filed by KING SAUD UNIVERSITY, Riyadh (SA)
Filed on May 23, 2024, as Appl. No. 18/673,100.
Int. Cl. A61C 17/028 (2006.01); A61C 5/40 (2017.01)
CPC A61C 17/028 (2013.01) [A61C 5/40 (2017.02)] 13 Claims
OG exemplary drawing
 
1. An endodontic irrigation needle, comprising:
a connection fitting configured for engagement with a source of irrigation fluid;
a needle, wherein the needle includes a proximal end connected to the connection fitting, and wherein the needle is hollow and forms a conduit for irrigation fluid to flow within, and wherein the needle includes a plurality of exit ports for discharging irrigation fluid; and
an apical plug, wherein the apical plug is formed of a different material than the needle and is permanently bonded to a distal end of the needle and wherein the apical plug includes a wedge-shaped tip layer, a tapered disc shaped mid layer, a tapered top layer, a first flexible connecting portion joining the wedge-shaped tip layer and the tapered disc shaped mid layer, and a second flexible connecting portion joining the tapered disc shaped mid layer and the tapered top layer.