Which parts of the hospital do medical centrifuges often appear in? Quietly telling you, there are actually many departments, such as the blood inspection department, as well as the urine inspection department, there are others, as well as other, as long as it involves the laboratory.
Because many hospitals are many people, the workload of the centrifuge is quite large, so the wear of the motor is very powerful for the medical centrifuge.
Taking into account the above-mentioned problem of frequent use of medical centrifuges, we should pay attention to regular maintenance work on time. This step is mainly for prevention.
What to prevent?
1. Prevent failures such as non-stop or slow speed.
2. Prevent accidents.
Next, please see the detailed analysis of the medical centrifuge in Xiaobian: When the medical centrifuge has a failure to stop or rotate slowly, the first part of the power supply must be eliminated. If the power cord is disconnected, the plug and socket are not in good contact, the bearing is damaged, or the stator or rotor coil is short-circuited or broken, and burned. The second is due to the open circuit of the brush, that is, the commutator on the rotor does not match the brush and the contact is poor. Because the motors used in medical centrifuges are generally series motor. It consists of two parts, the stator and the rotor. The stator is a concentrated fixed magnetic pole composed of a core and a field coil. The rotor is composed of a core and a rotor coil and a commutator. The function of the brush is to connect the stator coil to the key components of the rotor coil via the commutator. The circuit working principle of the series-excited motor is that the current flows from the power source through the stator field coil, the brush, and the commutator into the rotor coil, and then the brush and the stator field coil return to the power source to form a loop. The field coil and the rotor coil are connected in series by a commutator. The currents in the lines are equal, so only if the series circuit is unobstructed, the motor can work normally at the required speed. It can be seen that the working condition of the brush directly affects the normal operation of the motor. However, due to the contact between the brush and the commutator, wear, consumption or spring failure, the brush open circuit and the commutator are easily disengaged. It is the main cause of the centrifuge shutdown or slow speed failure.
Medical centrifuges are operated at high speeds, so be sure to pay attention to safety. The following must be done:
The medical centrifuge should be placed on a stable and sturdy table. Its base is equipped with rubber suction feet. It can be attached to the table top by means of atmospheric pressure and the weight of the instrument itself. Large-capacity low-speed centrifuge and high-speed freezing The centrifuge should be placed on a solid ground and placed horizontally. The ultracentrifuge weighs several hundred kilograms and should be placed on a very solid ground with dustproof and moisture-proof equipment to ensure that the centrifugal chamber reaches a certain degree of vacuum and normal operation. Before the centrifuge works, the load should be balanced. The smaller the weight error, the better. Otherwise, it will cause severe vibration and damage the centrifugal rotor and the shaft.
In addition, it should be noted that the tensile strength and elongation of various centrifuge tubes of medical centrifuges are different, and should be selected as needed. The centrifuge tubes can be made of many different materials, such as polyethylene, cellulose, polycarbonate, polypropylene, and the like. Care should be taken to ensure that the sample, solvent and gradient materials do not corrode the centrifuge tube and cap assembly. Centrifuge tubes that are out of date, aged, cracked, or corroded should be used as little as possible or at reduced speed. Control the number of times the plastic centrifuge tube is used, pay attention to the specifications. The medical centrifuge shall not open the centrifuge chamber cover during the centrifugation process, and shall not collide with the rotating rotor and the centrifuge tube by hand or foreign objects.
The above is some simple explanation about the medical centrifuge. If you want to know more about the medical centrifuge information, you should communicate with the medical centrifuge manufacturer.
