US 12,303,676 B2
Combined needle and cannula
John P. Fezza, Osprey, FL (US); Felix Vega, San Francisco, CA (US); Darrin James Kent, Murrieta, CA (US); and David James Prince, Saint Paul, MN (US)
Assigned to Arya Medical, Inc., Menlo Park, CA (US)
Filed by Arya Medical, Inc., Menlo Park, CA (US)
Filed on Apr. 27, 2021, as Appl. No. 17/241,289.
Claims priority of provisional application 63/092,855, filed on Oct. 16, 2020.
Claims priority of provisional application 63/015,981, filed on Apr. 27, 2020.
Prior Publication US 2021/0330896 A1, Oct. 28, 2021
Int. Cl. A61M 5/32 (2006.01); A61L 27/12 (2006.01); A61L 27/18 (2006.01); A61L 27/20 (2006.01)
CPC A61M 5/3271 (2013.01) [A61L 27/12 (2013.01); A61L 27/18 (2013.01); A61L 27/20 (2013.01); A61M 5/3234 (2013.01); A61M 2005/3201 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A device for performing injections in a patient, the device comprising:
a syringe holder, comprising:
a cone-shaped needle guard comprising a housing on a distal end of the syringe holder; and
a track comprising a proximal end with a proximal locking feature and a distal end with a distal locking feature;
a cannula extending from the cone-shaped needle guard of the syringe holder, wherein the cannula comprises a blunt tip and a cannula length;
a needle slidably disposed over the cannula, wherein the needle comprises a sharp tip and a needle length that is shorter than the cannula length; and
a needle carriage portion mounted on the track of the syringe holder, the needle carriage portion comprising:
a slider; and
a rigid support arm extending from the slider and including a needle attachment portion at its distal end that is coupled with the needle,
wherein the slider is configured to release from the proximal locking feature in the track, slide distally along the track, and lock in the distal locking feature, thus moving the needle out of the cone-shaped needle guard and to an extended position, in which the sharp tip of the needle immediately adjacent the blunt tip of the cannula for piercing skin of the patient, and
wherein the slider is further configured to release from the distal locking feature, slide proximally along the track, and lock in the proximal locking feature, thus moving the needle along the cannula from the extended position to a retracted position, in which the sharp tip is housed within the cone-shaped needle guard of the syringe holder.