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license: cc-by-nc-4.0
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Main protocol

Performer: Hamza \
Purpose / Hypothesis: Using 2 different foam with gap betweend them.

Needle size: 22G \
Needle tip: Quincke \
Punctured Material: 1.5 cm foam, Two of 1 cm on top each other \
Phantom setup: Foam 1(1cm foams in total 2 cm) and foam 2(1.5cm) with gap between and otherway around

[photo 1]

Extended:

Window box is used. Between materials there was air gap. New holder used for stable sensor placement on needle shaft.

[photo 2]

Filename meaning: \
hamza_foam1-foam2_22g_quincke_M.4.4.1.22G_2025-12-15_13.29.40

user_phantom_needle-gauge_needle-type_sensor-type_timestamp





Sensor places on channel 0. Channel 1 wasnt connected





Needle tracking protocol



Marker Size: 4 cm

Marker Border size: 1.2 cm



Needle offset: 9.3 cm



Z-offset: 0.5 cm