Multiple injection needle assembly

An injection needle assembly, comprising:

• at least N injection needles where N is at least two and a multiple of two,
• a first liquid port adapted to be connected to an injection device,
• N second liquid ports, each connected to only one of the N injection needles,
• N
• 2
• main liquid pathways each having an entrance connected to the first liquid port and having an exit,
• wherein the injection needle further comprises
• N
• 2
• secondary liquid pathways, further including:
• two extremities each opening on one of the N second liquid ports, and
• a mid portion connected to the exit of one of the main liquid pathways;
• and wherein the main liquid pathways and the secondary liquid pathways define N liquid flow paths between the first liquid port and the N second liquid ports and are dimensioned so that a pressure drop between the first liquid port and each of the N second liquid ports is between ±10%.

An injection needle assembly, comprising:

• at least N injection needles where N is at least four and a multiple of two,
• a first liquid port adapted to be connected to an injection device,
• N second liquid ports, each connected to one of the N injection needles,
• N
• 2
• main liquid pathways each having an entrance connected to the first liquid port and having an exit,
• wherein the injection needle assembly further comprises
• N
• 2
• secondary liquid pathways, further including:
• two extremities each opening on one of the N second liquid ports, and
• a mid portion connected to the exit of one of the main liquid pathways;
• wherein the main liquid pathways and the secondary liquid pathways define N liquid flow paths between the first liquid port and the N second liquid ports and are dimensioned so that a pressure drop between the first liquid port and each of the N second liquid ports is between ±10%, and
• wherein each of the N liquid flow paths are dimensioned at an angle with respect to an adjacent one of the N liquid flow paths.