Double-loop oscillation perfusion-type biological reaction system
A biological reaction and perfusion technology, applied in the field of biomedical engineering, can solve the problems of increasing production costs, lack of universality, and increasing production costs, and achieve the effects of saving production costs, reducing the risk of pollution incidents, and reducing consumption
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Embodiment 1
[0041] Example 1: Construction of the dual-loop oscillating perfusion bioreactor system of the present invention.
[0042] The dual-loop oscillating perfusion bioreaction system described in the present invention is suitable for different types of seed cells (such as cells from various sources such as human, mouse, rabbit, sheep, monkey, etc.) and biological scaffold materials with certain biomechanical strength. co-cultivate.
[0043] Double-loop oscillating perfusion bioreactor system, such as figure 1 As shown, it comprises: a support perfusion culture device 14, which contains a plurality of supports 13 for co-cultivation of seed cells and biological materials; the top surface of the support perfusion culture device 14 is equipped with a liquid inlet pipe 1, and the bottom surface The liquid outlet pipe 7; the liquid inlet pipe 1 and the liquid outlet pipe 7 are respectively connected to the infusion tube; the liquid storage bottle 11 is used to transport the culture so...
Embodiment 2
[0045] Example 2: Design and assembly of scaffold perfusion culture device.
[0046] The scaffold perfusion culture device is the key device of the dual-loop oscillation perfusion bioreactor system of the present invention, and its design and assembly are described in detail as follows.
[0047] The scaffold perfusion culture device, such as Figure 2 to Figure 5 As shown, it includes: a perfusion body 4, which is provided with a plurality of perfusion holes 41 in the liquid perfusion direction, and at least one bracket can be accommodated in the perfusion holes 41; the perfusion device upper cover 6, whose top surface is a smooth plane, and its bottom surface is opened There is a groove that can partially accommodate the perfusion body; the upper cover 6 of the perfusion device is provided with a liquid inlet hole that can be inserted into the liquid inlet pipe 1; the bottom surface of the perfusion device 2 is a smooth plane, and the top surface is opened There is a groov...
Embodiment 3
[0053] Example 3: Isolation, cultivation and identification of seed cells (New Zealand white rabbit costal chondrocytes).
[0054] Two- to three-month-old New Zealand white rabbits were sacrificed by air embolism of the ear veins. The bilateral thorax was exposed under aseptic conditions, and the costal cartilages on both sides were removed. Use PBS containing 1% double-antibody (penicillin, streptomycin) in the ultra-clean bench to wash away the blood stains, cut off the outer residual muscle and the dense perichondrium surrounding the cartilage, cut the cartilage into pieces, and wash with 0.25% trypsin at 37°C Digest for 30min, centrifuge at 1000rpm for 5min, discard the supernatant, add 0.2% type II collagenase for digestion for 6-8h, centrifuge at 1000rpm for 10min, rinse the precipitate with DMEM. Inoculate the obtained costal chondrocytes on 75cm 2 In the culture flask, add DMEM containing 10% fetal bovine serum and 1% double antibody, and place at 37°C with 5% CO 2...
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