Patent ID: 11865305
Assignee: WASHINGTON BIOTECH CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for driving a needle of a syringe to a selected penetration depth, the method comprising:
locating a syringe subassembly within a barrel having a muzzle end defining a shoulder comprising interior sidewalls of the muzzle end of the barrel;
within the barrel, engaging a penetration control with the shoulder of the muzzle end and with the syringe subassembly between the muzzle end and the syringe subassembly;
removing a needle sheath from covering the needle of the syringe without removing the shoulder of the muzzle end, the sheath when covering the needle residing between the needle and the penetration control;
while the penetration control is engaged with the shoulder of the muzzle end and with the syringe subassembly, driving the syringe subassembly toward the muzzle end until the syringe subassembly is stopped by the penetration control such that the needle of the syringe projects a selected penetration depth from said muzzle end while maintaining the penetration control within the barrel; and
retracting the needle to within the barrel.