C
O
N
F
I
D
E
N
T
I
A
L
Fixed Dose Pen
Fixed Dose Pen is a pen injector designed to deliver low-viscous drugs like Teriparatide with daily injectable dosage.
It can be customized to deliver a dose ranging from 0.02mL to 0.2mL.
Least number of parts in the assembly as compared to all its competitors.
Most compact design.
Personal Contribution: Co-Development (team of 2) of the mechanical delivery mechanism, Solely responsible for Dose Counter simplified concept.
Final SLA 3D Printed Working Prototype
Dose Counter (as shown in the image)
The dose numbers are printed on the plunger rod which rotates 180 degrees for each dose, on each rotation and forward movement a new (n-1) number appears until it gets to zero. On reaching zero, the device locks itself and can be disposed off.
Most of the other similar existing devices have a way more complex dose counting mechanism involving 1-2 extra parts. These extra parts drive up to molding and assembly cost which is not ideal for developing markets like India.