PMC

Barrier test system. (A) Overview of the test setup; (a) cylindrical container; (b) kitchen paper towel pocket; (c) plastic tube base; (d) acrylic glass tube closed with a plug with an extraction hose leading to the suction pump; (e) tube connected to the test chamber; (f) test chamber; (g) tube connected to the steel container; (h) steel container; (i) CO₂ flow meter; (j) CO₂ gas cylinder. (B) Top view of the cylindrical container; (b) kitchen paper towel pocket; (d) acrylic glass tube closed with a plug with an extraction hose leading to the suction pump. (C) Top view of test chamber; (e) tube connected to the test chamber; (f) test chamber, (g) tube connected to the steel container. (D) Top view of the steel container; (k) glass aquarium as bed bug trap with two filter papers as harborage; (l) thermometer; (m) plastic hose for CO₂ supply; (n) heating plate with Erlenmeyer flask and water.

Prototype #2 of THD produced with stainless steel. The conical end is doom shaped for optimal contact with the tissue, the upper pole is designed to firmly connect with a hose. The inner bore at the level of the hose connection was widened to 1.8 mm, and the retention grid was removed.

Endoscope biopsy sampling needles: The inner tube of the tissue needles consisted of a hose with a steel wire directly connected to the syringe, which could be automatically moved during suction. 2–3 ¹²⁵I radioactive seeds were placed in the biopsy channel of the endoscope biopsy sampling needles after suction of the syringe to the specified scale. The channel port of the needles was blocked with sterile glucose agar after the placement of the seeds. ¹²⁵I radioactive seeds were pushed into the tumour by using the steel wire

The 4 sites for exhaust air dust (EAD) swabbing on Tecniplast Smartflow air-handling unit (AHU) and Green line IVC rack are shown as: EH, the inside of the exhaust hose connected to the exhaust plenum of the IVC rack leading to AHU; EP, the inside of exhaust plenum at the bottom of the IVC rack; PF, the underside of the exhaust prefilter; and SSD, the stainless steel drawer below the exhaust prefilter.