US 12,144,970 B2
System and method for safety syringe
Alan E. Shluzas, San Carlos, CA (US); Stephen H. Diaz, Palo Alto, CA (US); John F. Shanley, Emerald Hills, CA (US); Jeff Tillack, Foster City, CA (US); Dan Thayer, Trustin, CA (US); and Gary Steese-Bradley, San Jose, CA (US)
Assigned to Credence MedSystems, Inc., Menlo Park, CA (US)
Filed by Credence MedSystems, Inc., Menlo Park, CA (US)
Filed on Feb. 17, 2021, as Appl. No. 17/178,104.
Application 17/178,104 is a continuation of application No. 16/234,054, filed on Dec. 27, 2018, granted, now 10,926,036.
Application 16/234,054 is a continuation of application No. 14/956,282, filed on Dec. 1, 2015, granted, now 10,173,010, issued on Jan. 8, 2019.
Application 14/956,282 is a continuation of application No. 14/696,342, filed on Apr. 24, 2015, granted, now 10,010,677, issued on Jul. 3, 2018.
Claims priority of provisional application 62/150,761, filed on Apr. 21, 2015.
Claims priority of provisional application 62/117,672, filed on Feb. 18, 2015.
Claims priority of provisional application 62/105,717, filed on Jan. 20, 2015.
Claims priority of provisional application 62/059,110, filed on Oct. 2, 2014.
Claims priority of provisional application 62/014,035, filed on Jun. 18, 2014.
Claims priority of provisional application 61/984,033, filed on Apr. 24, 2014.
Prior Publication US 2021/0244890 A1, Aug. 12, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01); A61J 1/20 (2006.01); A61M 5/20 (2006.01); A61M 5/31 (2006.01); A61M 5/32 (2006.01); A61M 5/34 (2006.01); A61M 5/50 (2006.01)
CPC A61M 5/31501 (2013.01) [A61J 1/2096 (2013.01); A61M 5/2033 (2013.01); A61M 5/3137 (2013.01); A61M 5/3148 (2013.01); A61M 5/31513 (2013.01); A61M 5/31515 (2013.01); A61M 5/3232 (2013.01); A61M 5/3234 (2013.01); A61M 5/3276 (2013.01); A61M 5/3293 (2013.01); A61M 5/346 (2013.01); A61M 5/348 (2013.01); A61M 5/5066 (2013.01); A61M 5/508 (2013.01); A61J 1/201 (2015.05); A61J 1/2065 (2015.05); A61M 2005/3103 (2013.01); A61M 2005/3128 (2013.01); A61M 2005/3131 (2013.01); A61M 2005/3139 (2013.01); A61M 5/31505 (2013.01); A61M 2005/31508 (2013.01); A61M 5/31596 (2013.01); A61M 5/3202 (2013.01); A61M 2005/3226 (2013.01); A61M 2005/3231 (2013.01); A61M 2005/3241 (2013.01); A61M 5/329 (2013.01); A61M 5/344 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for injecting medicine into a patient, comprising:
a syringe body defining an interior medicine chamber having a proximal end and a distal end;
a stopper member configured to be inserted into the interior medicine chamber to contain medicine within the interior medicine chamber;
a plunger member having a plunger housing, and configured to be manually manipulated to insert the stopper member relative to the syringe body, the plunger member comprising an energy storage member having a first stored mode and a second released mode;
a needle having proximal and distal ends, the proximal end comprising an anchoring geometry configured to at least partially penetrate the stopper member such that inserting the stopper member to the distal end of the interior medicine chamber causes the needle to be pulled proximally through the stopper member to be at least partially contained within the interior medicine chamber; and
a needle retention feature configured to selectively couple the needle proximal end and the energy storage member such that inserting the stopper member to the distal end of the interior medicine chamber causes the needle to be pulled proximally through the stopper member,
wherein the stopper member is a conventional off-the-shelf compliant stopper comprising an unmodified solid compliant member having a distally facing surface formed from one material that is continuous from one side of an interior of the syringe body, across a center of the distally facing surface, to an opposite side of the interior of the syringe body, with no recesses or projections in the distally facing surface.