Scope of Application

【Operating Instructions】

The main function of the needle patency tester is to measure the flow rate through a needle. Under a specified pressure, the flow rate through the needle represents its patency performance. By comparing the test result with the theoretical flow rate, it can be determined whether the needle meets the required patency standards. This product is easy to operate, provides stable pressure control, and uses a special structure that keeps the outlet pressure consistent with the set pressure, ensuring more accurate test results.The needle patency tester is suitable for detecting conventional rigid stainless steel needles for syringes, anesthesia needles, puncture needles, medical catheters, and other medical devices. It is widely used by medical device manufacturers, quality inspection institutes, third‑party testing organizations, colleges and universities, and research institutions.

**YS-TPT-10 Needle Patency Tester**

**【Scope of Application】**  

The main function of the needle patency tester is to measure the flow rate through a needle. Under a specified pressure, the flow rate through the needle represents its 

patency performance. By comparing the test result with the theoretical flow rate, it can be determined whether the needle meets the required patency standards. 

This product is easy to operate, provides stable pressure control, and uses a special structure that keeps the outlet pressure consistent with the set pressure, ensuring more accurate test results.

The needle patency tester is suitable for detecting conventional rigid stainless steel needles for syringes, anesthesia needles, puncture needles, medical catheters,

 and other medical devices. It is widely used by medical device manufacturers, quality inspection institutes, third‑party testing organizations, colleges and universities, and research institutions.

**【Applicable Standards】**  

- GB 18671-2009 — Single‑use intravenous infusion needles  

- GB 15811-2016 — Single‑use sterile injection needles  

- YY/T 0321.2-2021 — Single‑use anesthesia needles, etc.

**【Instrument Features】**  

1. Intelligent embedded operating system with a user‑friendly interface — what you see is what you get.  

2. 5‑inch color LCD touch screen with high‑definition display.  

3. High‑quality metal buttons for start and stop, making operation more convenient and faster.  

4. High‑precision pressure sensor senses the liquid surface pressure, ensuring accurate pressure output.  

5. Uses a voltage‑stabilizing and pressure‑regulating design for precise and stable pressure control, with test pressure stabilized within ±0.01 kPa.  

6. Standard configuration includes a micro‑printer for printing test data at any time.  

7. Standard RS232 data communication interface, and with professional software, convenient data export and external connection are possible.  

8. The system supports ISP online upgrade, allowing remote updates.

**【Technical Parameters】**  

1. **Test pressure range:** 0 – 600 kPa  

2. **Pressure accuracy:** ±0.3% FS  

3. **Pressure resolution:** 0.01 kPa  

4. **Air source interface:** Φ6 mm polyurethane tube  

5. **Test interface:** 6% Luer thread connector  

6. **Air source pressure requirement:** 0.2 – 0.7 MPa  

7. **Power supply:** 220 V, 50 Hz  

8. **External dimensions:** 600 mm (L) × 350 mm (D) × 320 mm (H)  

9. **Net weight:** 26 kg  

**【Product Configuration】**  

1. **Standard configuration:** Main unit, outlet tubing, Luer connector  

2. **Optional:** Custom connectors and fixtures