CN210301872U - Extracorporeal circulation system of double plasma exchange device - Google Patents
Extracorporeal circulation system of double plasma exchange device Download PDFInfo
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- CN210301872U CN210301872U CN201920692683.XU CN201920692683U CN210301872U CN 210301872 U CN210301872 U CN 210301872U CN 201920692683 U CN201920692683 U CN 201920692683U CN 210301872 U CN210301872 U CN 210301872U
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Abstract
The utility model discloses an extracorporeal circulation system of dual plasma exchange device provides opening and closure that can pass through circuit breaker on the control line, realizes under the condition of not breaking off the pipeline at second plasma separator both ends, washes blockking up second plasma separator. Therefore, the external pipeline of whole dual plasma replacement has been changed in this application, and when the transmembrane pressure of second plasma separator was high, make things convenient for medical personnel to handle, reduce patient's latency, avoided the possibility of air infection.
Description
Technical Field
The utility model relates to a technical field is medical instrument, especially relates to an extracorporeal circulation system of dual plasma exchange device.
Background
The extracorporeal circulation pipeline system of the existing artificial liver technology double plasma exchange device comprises a pipeline, a blood pump, a first plasma separator, a second plasma separator, a waste liquid collecting container and an exchange liquid container. The working principle is as follows: the blood of a patient is led out of the body, the plasma of the patient is separated from the whole blood by a membrane plasma separation method and discarded, and then equivalent fresh frozen plasma or replacement liquid such as human blood protein and the like is supplemented, so that various metabolic toxins and pathogenic factors in the body of the patient can be eliminated, and the purpose of treatment is achieved. The plasma replacement method can not only remove the metabolism toxin of middle and small molecules in the body, but also remove macromolecular substances such as protein, immune complex and the like, so that the clearance rate of harmful substances is far better than that of hemodialysis, hemofiltration and hemoperfusion, and necessary substances such as albumin, blood coagulation factors and the like which are lacked in the body are supplemented, thereby better replacing certain functions of the liver.
The artificial liver technology depends on a smooth and stable extracorporeal blood circulation passage, and a smooth circulation pipeline is the premise of smooth treatment. At present, 50% of plasma in a patient needs to be replaced in each treatment, each treatment is carried out for 3-4 hours, long-time plasma replacement is carried out, the aperture of the second plasma separator is smaller than that of the first plasma separator, the transmembrane pressure of the second plasma separator is high, and plasma replacement cannot be continued.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an extracorporeal circulation system of a dual plasma exchange device which can directly wash a second plasma separator in the extracorporeal blood circulation system.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an extracorporeal circulation system of a dual plasmapheresis device comprising: the blood leading pipe is connected with the first plasma separator, the first plasma separator is connected with the second plasma separator through a first three-way connecting pipe, the first three-way connecting pipe is provided with a port a, a port b, a port c, a first breaker and a second breaker, the first breaker is arranged between the port b and a cross point of the first three-way connecting pipe, and the second breaker is arranged between the port c and a cross point of the first three-way connecting pipe;
the second plasma separator is connected with the waste liquid collector through a second three-way connecting pipe, the second three-way connecting pipe is provided with a port a, a port b, a port c, a first breaker and a second breaker, the first breaker is arranged between the port b and a cross point of the second three-way connecting pipe, and the second breaker is arranged between the port c and a cross point of the second three-way connecting pipe;
the blood return pipe is connected with a second plasma separator, the first plasma separator and the plasma fluid infusion container are connected with the blood return pipe, a third circuit breaker is arranged on the blood return pipe, and the third circuit breaker is arranged between the second plasma separator and the intersection of the blood return pipe;
and the first plasma separator and the second plasma separator are connected with pressure measuring devices.
Preferably, the input ends of the first plasma separator and the second plasma separator are connected with a plasma pump, the input end of the waste liquid collector is connected with a plasma pump, and the output end of the plasma fluid infusion container is connected with a plasma pump.
Preferably, the first circuit breaker is arranged at a position 1 cm to 2 cm close to the intersection of the first three-way connecting pipe, the second circuit breaker is arranged at a position 1 cm to 2 cm close to the intersection of the second three-way connecting pipe, and the third circuit breaker is arranged at a position 1 cm to 2 cm close to the second plasma separator.
Preferably, the circuit breaker is a pipe clamp.
Preferably, the distance between the port c of the first three-way connecting pipe and the intersection point of the first three-way connecting pipe is not more than 3 cm.
Preferably, the distance between the port a of the second three-way connecting pipe and the intersection point of the second three-way connecting pipe is not more than 3 cm.
Preferably, the pressure measuring device is a pressure alarm device.
Preferably, the port c is provided with a matched port cover.
Preferably, the couplings are all pluggable couplings.
Based on the technical scheme, the beneficial effects of the utility model are that: the phenomenon that the transmembrane pressure of the second plasma separator is high appears in the plasma replacement process, the second plasma separator blocked can be washed timely without disconnecting a pipeline, the patient does not need to return blood in advance, the treatment of medical personnel is facilitated, the treatment effect of the patient is achieved, and the possibility of air infection is avoided.
Drawings
FIG. 1: the overall structure schematic diagram of an extracorporeal circulation system of the double plasma exchange device;
FIG. 2: the pipeline of the second plasma separator is enlarged when working normally;
FIG. 3: the second plasma separator is flushed with an enlarged line.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example one
As shown in fig. 1 to 3, the present invention provides the following:
an extracorporeal circulation system of a dual plasmapheresis device comprising: a blood leading pipe 6, a plasma pump 1, a first plasma separator 2, a second plasma separator 3, a plasma fluid infusion container 4, a waste liquid collector 5 and a blood returning pipe 7,
the blood leading pipe 6 is connected with a first plasma separator 2, the first plasma separator 2 is connected with a second plasma separator 3 through a three-way connecting pipe 8, the three-way connecting pipe 8 is provided with a port a111, a port b112, a port c113, a first breaker 12 and a second breaker 13, the first breaker 12 is arranged between the port b112 and the intersection of the three-way connecting pipe 8, and the second breaker 13 is arranged between the port c113 and the intersection of the three-way connecting pipe 8;
the second plasma separator 3 is connected with the waste liquid collector 5 through a three-way connecting pipe 9, the three-way connecting pipe 9 is provided with a port a121, a port b122, a port c123, a first breaker 14 and a second breaker 15, the first breaker 14 is arranged between the port b122 and the intersection of the three-way connecting pipe 9, and the second breaker 15 is arranged between the port c123 and the intersection of the three-way connecting pipe 9;
the blood return pipe 7 is connected with the second plasma separator 3, the first plasma separator 2 and the plasma fluid replacement container 4 are connected with the blood return pipe 7, a circuit breaker three 11 is arranged on the blood return pipe 7, and the circuit breaker three 11 is arranged between the second plasma separator 3 and the intersection of the blood return pipe 7;
the first plasma separator 2 and the second plasma separator 3 are both connected with pressure measuring devices 10.
Further, the input hookup of first plasma separator 2 and second plasma separator 3 has plasma pump 1,16, the input hookup of waste liquid collector has plasma pump 17, the output hookup of plasma fluid infusion container has plasma pump 18.
Further, the first and second circuit breakers 12 and 14 and 13 and 15 are disposed at 1 cm to 2 cm near the intersection of the three- way connection pipes 8 and 9, and the third circuit breaker 11 is disposed at 1 cm to 2 cm near the second plasma separator 3.
Furthermore, the first circuit breakers 12 and 14, the second circuit breakers 13 and 15 and the third circuit breaker 11 are pipeline clamps.
Preferably, the distance between the port c113 of the three-way connection pipe 8 and the intersection of the three-way connection pipes is not more than 3 cm.
Further, the distance between the port a121 of the three-way connection pipe 9 and the intersection point of the three-way connection pipe is not more than 3 cm.
Further, the pressure measuring device 10 is a pressure alarm device.
Further, the ports c113 and c123 are provided with matched port covers.
Further, the connections are all pluggable connections.
The utility model discloses dual plasma exchange device's extracorporeal circulation pipeline's working process: during normal operation, the first circuit breakers 12 and 14 arranged between the intersections of the three-way connecting pipe 8 and the three-way connecting pipe 9, the upper ports b112 and 122 of the three-way connecting pipe 9 and the three- way connecting pipes 8 and 9 are in an open state, the second circuit breakers 13 and 15 are in a closed state, and the third circuit breaker 11 is in an open state. The patient carries out plasma replacement, plasma enters a plasma pump 1 through a blood leading pipe 6, then the plasma flows out of the plasma pump 1 and flows into a first plasma separator 2, the plasma is separated into two paths in the first plasma separator 2 and flows out, and then fresh blood flows into a blood returning pipe; the other path of plasma flows in from a port b of the three-way connecting pipe 8, at the moment, the first breaker 12 is in an open state, the plasma flows into the second plasma separator 3 through the first breaker 12, the plasma is separated into two paths after the second plasma separator 3 performs plasma separation again and flows out, and after one path of plasma flows back to a blood vessel, plasma supplementing liquid is added and flows back to the patient; the other path of plasma flows in from the port a of the three-way connecting pipe 9 through the plasma, the first breaker 12 is in an open state, and the plasma flows into the waste liquid collector 5 through the first breaker 14.
The input end of the first plasma separator 2 is connected with a plasma pump 1, the input end of the second plasma separator 3 is connected with a plasma pump 16, the input end of the waste liquid collector 5 is connected with a plasma pump 17, and the output end of the plasma supplementing container 4 is connected with a plasma pump 18.
When the pressure alarm device sends out an alarm signal, port covers on the ports c113 and c123 are uncovered, the first circuit breakers 12 and 14 arranged on the three- way connecting pipes 8 and 9 are closed, the second circuit breakers 13 and 15 are opened, and the third circuit breaker 11 is closed. The normal saline flows into the second plasma separator 3 from the port c113 of the three-way connecting pipe 8, the inside of the second plasma separator 3 is washed, after the washing time is two minutes, the transmembrane pressure of the second plasma separator can be reduced, then the first circuit breakers 12 and 14 arranged on the three- way connecting pipes 8 and 9 are opened, the second circuit breakers 13 and 15 are closed, the third circuit breaker 11 is opened, and the plasma replacement of the patient is continuously carried out.
The utility model discloses under the condition that has changed the external pipeline of whole dual plasma replacement, second plasma separator transmembrane pressure is high-time, can wash second plasma separator under the condition of not breaking second plasma separator both ends short circuit, and the patient need not return blood in advance, so makes things convenient for medical personnel to handle, reaches patient's treatment, has avoided air infection's possibility.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (9)
1. An extracorporeal circulation system of a dual plasmapheresis device, comprising: the blood leading pipe is connected with the first plasma separator, the first plasma separator is connected with the second plasma separator through a first three-way connecting pipe, the first three-way connecting pipe is provided with a port a, a port b, a port c, a first breaker and a second breaker, the first breaker is arranged between the port b and a cross point of the first three-way connecting pipe, and the second breaker is arranged between the port c and a cross point of the first three-way connecting pipe;
the second plasma separator is connected with the waste liquid collector through a second three-way connecting pipe, the second three-way connecting pipe is provided with a port a, a port b, a port c, a first breaker and a second breaker, the first breaker is arranged between the port b and a cross point of the second three-way connecting pipe, and the second breaker is arranged between the port c and a cross point of the second three-way connecting pipe;
the blood return pipe is connected with a second plasma separator, the first plasma separator and the plasma fluid infusion container are connected with the blood return pipe, a third circuit breaker is arranged on the blood return pipe, and the third circuit breaker is arranged between the second plasma separator and the intersection of the blood return pipe;
and the first plasma separator and the second plasma separator are connected with pressure measuring devices.
2. The extracorporeal circulation system of a dual plasma exchange apparatus of claim 1, wherein a plasma pump is coupled to the input ends of the first and second plasma separators, a plasma pump is coupled to the input end of the waste fluid collector, and a plasma pump is coupled to the output end of the plasma replacement container.
3. The extracorporeal circulation system of a dual plasma exchange apparatus of claim 1, wherein the first circuit breaker is disposed at a distance of 1 cm to 2 cm near the intersection of the first three-way connection tube, the second circuit breaker is disposed at a distance of 1 cm to 2 cm near the intersection of the second three-way connection tube, and the third circuit breaker is disposed at a distance of 1 cm to 2 cm near the second plasma separator.
4. The extracorporeal circulation system of a dual plasmapheresis device of claim 3, wherein the circuit breaker is a tubing clip.
5. The extracorporeal circulation system of a dual plasmapheresis device of claim 1, wherein the distance between the port c of the first three-way connection tube and the intersection of the first three-way connection tube is no more than 3 cm.
6. The extracorporeal circulation system of a dual plasmapheresis device of claim 5, wherein the distance between the port a of the second three-way connecting tube and the intersection of the second three-way connecting tube is not more than 3 cm.
7. The extracorporeal circulation system of a dual plasmapheresis device of claim 1, wherein the pressure measuring device is a pressure alarm device.
8. The extracorporeal circulation system of a dual plasmapheresis device of claim 1, wherein the port c is provided with a mating port cover.
9. The extracorporeal circulation system of a dual plasmapheresis device of claim 1, wherein the couplings are pluggable couplings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920692683.XU CN210301872U (en) | 2019-05-15 | 2019-05-15 | Extracorporeal circulation system of double plasma exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920692683.XU CN210301872U (en) | 2019-05-15 | 2019-05-15 | Extracorporeal circulation system of double plasma exchange device |
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| Publication Number | Publication Date |
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| CN210301872U true CN210301872U (en) | 2020-04-14 |
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| CN201920692683.XU Active CN210301872U (en) | 2019-05-15 | 2019-05-15 | Extracorporeal circulation system of double plasma exchange device |
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2019
- 2019-05-15 CN CN201920692683.XU patent/CN210301872U/en active Active
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