Introducer needle with notches for improved flashback

An introducer needle, comprising:

• a proximal end, a distal tip, and a needle lumen extending therebetween;
• a wall defining the needle lumen;
• a first notch formed through the wall;
• a second notch formed through the wall, wherein the second notch is proximal to the first notch;
• and
• a seal constructed of a dissolvable material configured to dissolve in response to contact with blood, wherein the seal is disposed on top of the second notch to seal the second notch.

A catheter system, comprising:

• a catheter adapter, comprising a distal end, a proximal end, and a lumen extending therebetween;
• a catheter extending distally from the distal end of the catheter adapter;
• a blood control septum disposed within the lumen and dividing the lumen into a proximal chamber and a distal chamber;
• an introducer needle having a wall defining a needle lumen of the introducer needle, a first notch formed through the wall, and a second notch formed through the wall, wherein the second notch is proximal to the first notch, wherein the introducer needle extends through the catheter and beyond a distal end of the catheter when the introducer needle is in an insertion position for insertion into a patient, wherein the first notch is disposed within the catheter when the introducer needle is in the insertion position, wherein at least a portion of the catheter is transparent, wherein the second notch is disposed distal to the blood control septum when the introducer needle is in the insertion position;
• and
• a seal constructed of a dissolvable material configured to dissolve in response to contact with blood, wherein the seal is disposed on top of the second notch to seal the second notch.