The application case of a micro air pump and liquid pump in a multifunctional wound cleaning machine

Background introduction 

Surgical wounds include various chemical, physical, mechanical, biological injuries or wounds caused by surgery. The treatment of wounds is crucial to the healing process. “Thorough debridement and open drainage” is the main principle followed by wound cleaning. However, traditional wound cleaning methods are less efficient and thorough. With the development of technology, multi functional wound cleaning machines are more efficient and thorough than traditional wound cleaning methods. They also reduce damage to normal tissues during the cleaning process and alleviate patient pain.

Introduction to multi functional wound cleaning machine

The multi functional wound cleaning machine is a medical device for cleaning complex wounds. It integrates ultrasonic cleaning, pulsatile flushing and negative pressure suction to efficiently remove necrotic tissue from wounds. It also protects new tissue, disinfects and sterilizes, quickly removes waste liquid, and avoids secondary infection.

Ultrasonic cleaning: The cavitation effect of ultrasound can produce many micro bubbles when ultrasound acts on the flushing solution. These micro bubbles expand and contract strongly with ultrasonic vibration. When the bubbles burst, they produce micro jets that form an impact force that removes bacteria and foreign objects from the wound while removing necrotic tissue.

Pulsatile flushing: A certain pressure of pulsatile flushing solution is output through a micro liquid pump to make the surface of the traumatic tissue appear regularly between contraction and relaxation. The thrust generated by the water flow bubble rupture in the flushing solution will loosen the contaminants embedded in the wound surface and carry them away with the water flow. This type of wound cleaning is mainly used for large open wounds.

Negative pressure suction: The above two types of wound cleaning methods work alternately to quickly clean the wound surface. In order to avoid contamination and ensure that the working environment remains clean, negative pressure suction is used to recover waste liquid.

Application analysis of micro pump wound cleaning machine

The micro liquid pump is used to transmit the cleaning solution in the ultrasonic cleaning section, which is sprayed onto the tissue surface after cavitation by ultrasound. In the pulsatile flushing section, a micro liquid pump is used to increase the pressure of the flushing solution (generally hydraulic pressure is around 55kPa). In the negative pressure suction section, a micro vacuum pump is used to maintain a stable negative pressure environment in the negative pressure container.

Why not use a liquid pump to directly extract waste liquid in this section? Because waste liquid discharged from debridement contains complex mixed media such as cleaning solution, blood and necrotic tissue. If a liquid pump is used directly, it is easy to block or corrode the pump body. At the same time, it is also to avoid cross-contamination caused by repeated use.

Application characteristics:

1.In both types of debridement sections, it is necessary for micro liquid pumps to be able to conveniently adjust flow rate and have certain anti-corrosion ability for complex media. Commonly used cleaning solutions for debridement are saline and hydrogen peroxide.

2.In this application, micro vacuum pumps used for negative pressure suction need to have relatively small volume while having high vacuum degree and large flow rate.

Solutions

Micro vacuum pump product recommendations:

1.Micro vacuum pump C50 series: (see product center for detailed parameters) Model: C50L, C50S

Description: Micro diaphragm vacuum pump, brushless motor, remote control and speed regulation, relative vacuum degree (negative pressure) greater than -60kPa, average flow rate range with no load: 11/min~14.5L/min (soap film flowmeter test data)

Advantages: Long life span, small volume with large flow rate, multi-functional speed regulation.

2.Micro vacuum pump C60L: (see product center for detailed parameters) Description: Micro diaphragm vacuum pump, brushless motor, remote control and speed regulation, relative vacuum degree (negative pressure) greater than -88kPa, average flow rate with no load greater than 17.5L/min (soap film flowmeter test data)

Advantages: Long life span, high vacuum degree with large flow rate and multi-functional speed regulation.

3.Micro vacuum pump C61: (see product center for detailed parameters) Description: Micro diaphragm vacuum pump, brushless motor, remote control and speed regulation, relative vacuum degree (negative pressure) greater than -65kPa, average flow rate with no load greater than 26.5L/min (soap film flowmeter test data)

Advantages: long life, high vacuum degree, large flow rate, multi-functional speed regulation.

Recommended micro liquid pump products:

1.Micro liquid pump S36 series: (see product center for details)

Model: S36L, S36M, S36S

Description: Micro liquid diaphragm pump, brushless motor, gas-liquid dual-use, rated working voltage 24V, no-load liquid flow range: 1.3-3L/min (S36L: 3L/min, S36M: 2L/min, S36S: 1.3L/min)

Advantages: stable flow rate, adjustable flow rate, high pressure height, compatible with complex medium, remote control

2.Micro liquid pump S23: (see product center for details)

Description: Micro liquid diaphragm pump, brushless motor, gas-liquid dual-use, rated working voltage 12V, no-load liquid flow rate: about 0.4L/min Advantages: stable flow rate, small size, low noise, compatible with complex medium, remote control