Pen needle exchange system

Abstract

An electronic system (200) connectable to a medication delivery pen (4) and a needle assembly (2, 102), the electronic system (200) exchanging data regarding a medicament traveling from the medication delivery pen (4) to the needle assembly (2, 102), the electronic system (200) comprising a hub (202) having a spike (204) that is configured to engage the medication delivery pen (4) and pierce a reservoir septum of the medication delivery pen (4), a flow sensor (220) that is in fluid communication with the hub (202) to measure flow data of the medicament, a circuit board (250) electrically contacting the flow sensor (220) to process and transmit the flow data, the circuit board (250) including a fluid path hole (254) to route a flow of medicament, and a septum body (270, 284) that is configured to provide fluid communication between the flow sensor (220) and one of a plurality of needles (40, 124) of the needle assembly (2, 102) to administer the medicament to a patient.

1 . An electronic system connectable to a medication delivery pen, the electronic system exchanging data regarding a medicament exiting the medication delivery pen into the electronic system, the electronic system comprising:
 a flow sensor that detects the medicament received from the medication delivery pen to measure flow data of the medicament;   a circuit board electrically contacting the flow sensor to process and transmit the flow data; and   a septum body that is configured to control medicament exiting the electronic system.   
     
     
         2 . The electronic system of  claim 1 , further comprising:
 a hub having a spike that is configured to engage the medication delivery pen and pierce a reservoir septum of the medication delivery pen; and   the flow sensor includes an O-ring that seals an interface between the hub and the flow sensor.   
     
     
         3 . The electronic system of  claim 1 , further comprising a foam pad surrounding the flow sensor and applying a force to the circuit board. 
     
     
         4 . The electronic system of  claim 3 , further comprising a flexible battery partially surrounding the foam pad. 
     
     
         5 . The electronic system of  claim 3 , wherein the circuit board surrounds the foam pad. 
     
     
         6 . The electronic system of  claim 4 , wherein the flexible battery partially surrounds the circuit board. 
     
     
         7 . The electronic system of  claim 4 , wherein the flexible battery electrically contacts a distal end of the circuit board. 
     
     
         8 . The electronic system of  claim 1 , wherein the circuit board comprises a flexible circuit board. 
     
     
         9 . The electronic system of  claim 1 , wherein
 the septum body includes an input chamber and a delivery chamber; and   the input chamber transfers the medicament from the flow sensor to the delivery chamber.   
     
     
         10 . The electronic system of  claim 1 , wherein the circuit board is disposed between the flow sensor and the septum body. 
     
     
         11 . The electronic system of  claim 1 , further comprising
 a frame that encloses the electronic system, the frame including a hole; and   the circuit board includes a switch, wherein   the switch is disposed in the hole of the frame and extends through the hole.   
     
     
         12 . The electronic system of  claim 11 , wherein a foam pad applies a force to the switch so that the switch projects through the hole of the frame throughout operation. 
     
     
         13 . The electronic system of  claim 1 , wherein
 the septum body includes an upper septum and a lower septum; and   an inner surface of the lower septum and an outer surface of the upper septum form a delivery chamber.   
     
     
         14 . The electronic system of  claim 1 , further comprising an activation switch to activate the flow sensor for operation. 
     
     
         13 . The electronic system of  claim 1 , wherein the medicament flows within the flow sensor in a direction perpendicular to a centerline of the medication delivery pen. 
     
     
         14 . The electronic system of  claim 1 , wherein the flow sensor includes a flow sensor inlet and a flow sensor outlet. 
     
     
         15 . The electronic system of  claim 2 , wherein a flow sensor inlet of the flow sensor engages the hub. 
     
     
         16 . The electronic system of  claim 1 , wherein a flow sensor outlet engages the septum body. 
     
     
         17 . The electronic system of  claim 16 , wherein an interface between the flow sensor outlet and the septum body is sealed. 
     
     
         18 . The electronic system of  claim 1 , wherein the medicament travels from the flow sensor, through the circuit board, and to the septum body. 
     
     
         19 . The electronic system of  claim 1 , wherein the medicament travels from the flow sensor, around the circuit board, and to the septum body. 
     
     
         20 . A method of operating an electronic system connectable to a medication delivery pen and a needle assembly, the electronic system exchanging data regarding a medicament traveling from the medication delivery pen to the needle assembly, the method comprising:
 fluidly connecting the medication delivery pen to a flow sensor;   providing the medicament to flow from the medication delivery pen to the flow sensor to measure flow data of the medicament;   processing and transmitting the flow data from the flow sensor to a circuit board; and   routing the medicament flow from the flow sensor to a septum body of the electronic system.