Four channel continuous injection perfusion system

1 Introduction

Product categories: cyclic injection pump cell perfusion system, vertical syringe pump, micro-injection pump, micro-syringe pump.
The cyclic injection pump/cell perfusion system can simulate cell culture under physiological conditions and is usually operated on a biochip or cell flow chamber.
The continuous injection perfusion system (vertical continuous micro-injection pump) is a perfusion/extraction type microfluidic sampling device, including three standard products:
One group: WH-CPS-02 continuous injection perfusion system (equipped with two syringes);
The second group: WH-CPS-04 continuous injection perfusion system (equipped with four syringes);
Three groups: WH-CPS-06 continuous injection perfusion system (equipped with six syringes).
Wenhao shares provide more channel customization services, such as 8, 10, 12, and other microfluidic sampling equipment!
The continuous injection perfusion system (WH-CPS-04) is a high-precision fluid control equipment independently developed by Wenhao Co., Ltd. This system has the characteristics of precision, stability, and strong anti-interference ability and can be widely used in related fields such as microfluidic drive control.
The device contains four sets of propulsion modules. The switching valve of each set only needs to be connected with a simple pipeline to achieve two continuous channels for uninterrupted liquid injection, and each set of propulsion modules can inject or draw liquid at different speeds. It is easy to use and simple to operate. The parameter setting, modification, and view of fluid control can be completed in the main interface of starting up. During the parameter input process, the model and inner diameter of the syringe can be selected directly from the list or manually input, and then input other parameters ( Flow rate, flow rate, time, infusion type, etc.). The task can be paused at any time during the work, and various parameters can be reset and executed immediately.

2. Technical parameters

Working mode: liquid suction, liquid injection, first injection and then suction, first suction, and then injection, continuous mode
Number of channels: 4
Maximum stroke of the syringe: 60mm
Syringe specifications: 1mL-10 mL
Travel resolution: 0.078um
Injection volume per microstep: 0.428 uL (10 mL syringe)
Linear speed range: 4.68um/min-133mm/min
Maximum linear thrust: 20kgf
Control accuracy: ≤±0.5% (when stroke ≥ 30% of maximum stroke)
Setting method: full touch screen setting
Display mode: 7-inch color LCD screen, the same screen displays multiple sets of channel-related parameters
Weight: 12kg
Working voltage: 220V/50HZ
Dimensions: 320 (L) × 273 (W) × 365 (H) mm
Working environment: temperature 0℃-40 ℃, relative humidity <80%

3. Features

3.1 Channel settings
Each channel can be set separately and can also be operated in a unified manner such as “fast forward,” “fast rewind,” “start,” “pause,” and so on.
3.2 Determination of Syringe Type
Each channel can be placed with different brands and specifications of syringes (the head 1/4-28UNF outer teeth, the tail M3 inner teeth).
(1) Search from the list
There is a list of standard syringes in the manufacturer’s brand. After the syringe model is selected, the program automatically loads the corresponding inner diameter value.
(2) Custom input
If there is no syringe used by the user in the syringe program list, you can directly enter the type and inner diameter of the syringe. The device can store multiple sets of user-defined syringe inner diameter values.
3.3 Target parameter input
Target parameters include liquid volume, flow rate, and time. Choose to input any two parameters, and the other parameter will be obtained directly by the system.

4. Graphical interface features

For the display of the syringe specification library, you can select the corresponding type according to your needs;
The current operating mode and status of each channel, and the delay between each channel;
Real-time individual control of each channel and unified control of all channels.

5. Feature diagram

(1) Screen operation display ; (2) Valve switching ; (3) Airtight sampler; (4) Rod push; (5) Knob Tightening;

The injection channels on the screen correspond to the first to fourth channels from left to the right by default.

6.Accuracy test report of continuous injection

Channel groups syringe spec 1ml 5ml
flow velocity


10ul/min 30ul/min 300ul/min 500ul/min
First group Initial weight(g) 19.2075 17.8986 23.9631 19.581
Final weight(g) 19.0055 17.6045 20.9333 16.5405
Total weight(ul) 202.00 294.10 3029.80 3040.50
Test time(min) 20.00 10.00 10.00 6.00
Test flow velocity(ul/min) 10.10 29.41 302.98 506.75
Relative deviation 1.00% 1.97% 0.99% 1.35%
Second group Initial weight(g) 17.2097 16.8355 20.3665 24.4985
Final weight(g) 17.0062 16.5304 17.3415 21.4403
Total weight(ul) 203.50 305.10 3025.00 3058.20
Test time(min) 20.00 10.00 10.00 6.00
Test flow velocity(ul/min) 10.18 30.51 302.50 509.70
Relative deviation 1.75% 1.70% 0.83% 1.94%
Test result Relative deviation<2%

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