Supplemental support for infant carrier handle

A supplemental support for an infant carrier handle, comprising:

• a top clamshell having a top clamshell support structure with a top clamshell support structure proximal end and a top clamshell support structure distal end;
• a bottom clamshell with a bottom clamshell proximal end and a bottom clamshell distal end;
• the bottom clamshell proximal end hingeably attached to the top clamshell support structure proximal end via a clamshell hinge assembly such that the bottom clamshell distal end swings upwards to close against an underside of the top clamshell when in a closed configuration and the bottom clamshell distal end swings downwards away from the underside of the top clamshell when in an open configuration;
• a retention strap assembly having a retention strap and a retention strap lock;
• the retention strap extending from a strap proximal end to a strap distal end;
• the strap proximal end attached to the top clamshell and the retention strap configured to wrap over and tighten against a handle of an infant carrier;
• the strap distal end feeding through one of a plurality of strap ports in a top surface of the top clamshell and into the retention strap lock;
• the retention strap lock lockably connecting the retention strap to the bottom clamshell wherein the retention strap lock is connected to the bottom clamshell at a mounting location;
• a distance between a most distal of the plurality of strap ports and the mounting location equals a first length when in the open configuration and the distance equals a second length when in the closed configuration, and wherein the second length is greater than the first length such that closing the bottom clamshell against the top clamshell functions to tighten the retention strap;
• and
• a bottom surface of the bottom clamshell extending longitudinally from the bottom clamshell distal end to the bottom clamshell proximal end and having a transverse cross section taken perpendicular thereto which is curved so as to comfortably fit over a curved upper surface of a user's forearm and distribute widely thereacross a weight of the supplemental support for infant carrier handle.