US 11,744,949 B2
System and method for detecting applied force during injection
Christopher Rini, Raleigh, NC (US); and Bruce Roberts, Franklin Lakes, NJ (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Appl. No. 16/635,460
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
PCT Filed Aug. 29, 2018, PCT No. PCT/US2018/048558
§ 371(c)(1), (2) Date Jan. 30, 2020,
PCT Pub. No. WO2019/046436, PCT Pub. Date Mar. 7, 2019.
Claims priority of provisional application 62/553,004, filed on Aug. 31, 2017.
Prior Publication US 2021/0100954 A1, Apr. 8, 2021
Int. Cl. A61M 5/20 (2006.01)
CPC A61M 5/20 (2013.01) [A61M 2205/332 (2013.01); A61M 2205/52 (2013.01); A61M 2205/581 (2013.01); A61M 2205/583 (2013.01); A61M 2205/587 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8262 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A medical device comprising:
an insulin pen with a pen needle attached thereto,
a first force sensor arranged on a hub face of the pen needle,
a second force sensor arranged on a thumb button of the insulin pen,
a microcontroller that receives a first signal from the first force sensor and a second signal from the second force sensor during an injection; wherein the microcontroller is programmed to determine, from the first and second signals received during the injection, a force over time profile, and based on the determined force over time profile, whether or not the injection was properly administered; and
at least one of an audible indicator and a visual indicator controlled by the microcontroller.
 
8. A medical device comprising:
an insulin pen for receiving a pen needle at a pen needle attachment portion;
an adapter assembly that attaches to the attachment portion of the insulin pen, and which receives the pen needle on an opposite end of the adapter assembly;
the adapter assembly comprising a first force sensor, a sensor housing and a transfer needle assembly that provides a fluid conduit between the pen needle and the insulin pen;
a second force sensor associated with a thumb button of the insulin pen; and
a microprocessor that receives a first signal from the first force sensor and a second signal from a second force sensor during an injection; and wherein the microprocessor is programmed to determine, from the first and second signals received during the injection, whether or not the injection was properly administered.