Optimizing device for freely switching between blood cell component removal and plasma exchange

An optimizing device for freely switching between blood cell component removal and plasma exchange, which comprises a blood component separator, an external exchange replacement liquid pathway (1), a waste liquid collection bag (2), a centrifugal separation belt (3), a pipeline clamping plate (4), a saline pipeline (5), an anticoagulant pipeline (6), a blood collection pipeline (7), a recirculation pipeline (8), an anticoagulation pump (9), a blood collection pump (10), a plasma collection pump (11), a replacement liquid pump (12), and a blood recirculation pump (13);

• wherein the blood component separator comprises a blood cell recirculation pathway and a plasma exchange output pathway (21);
• wherein:
• the blood collection pipeline (7) is provided with a blood collection pipeline sieve tube (401) and a blood collection pressure sensor (402), and the blood collection pipeline sieve tube (401) and the blood collection pressure sensor (402) are limited on the pipeline clamping plate (4);
• the recirculation pipeline (8) is provided with a blood reservoir and a recirculation pressure sensor (404), wherein a high liquid level sensor (405) and a low liquid level sensor (406) which are configured to detect a liquid level are provided in the blood reservoir;
• and a blood reservoir filter (403) is further provided at a bottom of the blood reservoir;
• the pipeline clamping plate (4) is provided with a blood cell valve (407) which is configured to adjust a red blood cell delivery pipe;
• and the pipeline clamping plate (4) is further provided with a red blood cell detector (410);
• wherein a collection bag scale (22) is provided on the waste liquid collection bag (2), and a liquid level sensor (23) is provided at a bottom of the waste liquid collection bag (2);
• a pipeline hook (14) is provided on the pipeline clamping plate (4);
• a freely movable cassette is provided on the blood cell recirculation pathway, which is configured to clamp shut the blood cell recirculation pathway;
• when implementing, first, deactivating the red blood cell detector (410) on the plasma exchange output pathway, separating the plasma exchange output pathway (21) from the plasma collection pump (11), so that the flow rate limit of automatic recognition of plasma collection is artificially released, thereby preventing the centrifugal pressure alarm induced by the storage of a large number of cells, at the same time, adding a hanging hook above the installing panel to flexibly fix the plasma exchange output pathway at the plasma collection pump (11), and preventing the plasma exchange pathway from rotating into the plasma collection pump (11), further, installing an external liquid level sensor (23) on the plasma exchange output pathway (21) to sense the normal flow of liquid.