US 11,998,726 B2
Cartridge safety injection system and methods
Alan E. Shluzas, San Carlos, CA (US); Mina M. Leung, Mountain View, CA (US); Stephen H. Diaz, Palo Alto, CA (US); and Jeff Tillack, Foster City, CA (US)
Assigned to Credence MedSystems, Inc., Menlo Park, CA (US)
Filed by Credence Medsystems, Inc., Menlo Park, CA (US)
Filed on Feb. 8, 2021, as Appl. No. 17/169,778.
Application 17/169,778 is a continuation of application No. 15/801,281, filed on Nov. 1, 2017, granted, now 10,912,894.
Claims priority of provisional application 62/542,230, filed on Aug. 7, 2017.
Claims priority of provisional application 62/480,276, filed on Mar. 31, 2017.
Claims priority of provisional application 62/431,382, filed on Dec. 7, 2016.
Claims priority of provisional application 62/416,102, filed on Nov. 1, 2016.
Prior Publication US 2021/0236741 A1, Aug. 5, 2021
Int. Cl. A61M 5/32 (2006.01); A61M 5/178 (2006.01); A61M 5/20 (2006.01); A61M 5/24 (2006.01); A61M 5/28 (2006.01); A61M 5/31 (2006.01); A61M 5/315 (2006.01); A61J 1/20 (2006.01)
CPC A61M 5/3221 (2013.01) [A61M 5/178 (2013.01); A61M 5/2066 (2013.01); A61M 5/2448 (2013.01); A61M 5/28 (2013.01); A61M 5/284 (2013.01); A61M 5/3137 (2013.01); A61M 5/3148 (2013.01); A61M 5/31501 (2013.01); A61M 5/31511 (2013.01); A61M 5/31513 (2013.01); A61M 5/3202 (2013.01); A61M 5/322 (2013.01); A61M 5/3234 (2013.01); A61J 1/2006 (2015.05); A61J 1/2096 (2013.01); A61M 2005/3223 (2013.01); A61M 2005/323 (2013.01); A61M 2005/3231 (2013.01); A61M 5/3232 (2013.01); A61M 2005/3241 (2013.01); A61M 5/3293 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for injecting, comprising:
a cartridge body having proximal and distal openings, and a distal cartridge body interface;
a distal cartridge seal removably coupled to the distal cartridge body interface of the cartridge body, the distal cartridge seal defining
a longitudinal channel extending longitudinally through the distal cartridge seal, and
a sealing gland extending radially into the longitudinal channel:
a stopper member disposed in a cartridge interior of the cartridge body;
a plunger member having a plunger interior and configured to be manually manipulated to insert the stopper member relative to the cartridge body, the plunger member including
a needle retention feature disposed in the plunger interior,
an energy-storage member disposed in the plunger interior, and
an energy-storage member latching member disposed in the plunger interior; and
a needle hub assembly coupled to the distal cartridge body interface of the cartridge body, the needle hub assembly including
a needle having a needle proximal end feature,
a hub, and
a needle latching member configured to selectively prevent the needle from moving proximally relative to the hub,
wherein manipulating the plunger member relative to the cartridge body to transform the energy-storage member latching member from a latched state to an unlatched state retracts the needle proximal end feature proximally through the stopper member.