CN217548657U - Concentrated solution degassing system of blood purification equipment - Google Patents
Concentrated solution degassing system of blood purification equipment Download PDFInfo
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- CN217548657U CN217548657U CN202220707873.6U CN202220707873U CN217548657U CN 217548657 U CN217548657 U CN 217548657U CN 202220707873 U CN202220707873 U CN 202220707873U CN 217548657 U CN217548657 U CN 217548657U
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Abstract
The utility model discloses a concentrated solution degassing system of blood purification equipment, which comprises a dialysis water pipeline, a first concentrated solution pipeline, a second concentrated solution pipeline and a dialyzate pipeline; a degassing pipeline is arranged between the first concentrated solution pipeline and the second concentrated solution pipeline, the dialysis water pipeline and the first concentrated solution pipeline are converged to form a first converging pipeline, the converged liquid and the second concentrated solution are converged to form a second converging pipeline, and a medium in the second converging pipeline is discharged through the dialysate pipeline; according to the scheme, bubbles in the pipeline can be effectively discharged, the safety of users in use is ensured, and the concentration of the dialysate in the whole scheme is accurate and adjustable and cannot be influenced by the bubbles; in addition, the concentrated solution degassing tank arranged in the scheme can enable the equipment to send out an alarm prompt after the liquid in the concentrated solution barrel is used up, so that the liquid changing time of a user is reserved for 3 minutes, seamless liquid changing can be realized, and the treatment is not suspended; the treatment continuity is ensured.
Description
Technical Field
The utility model relates to a blood treatment equipment technical field especially relates to a blood purification equipment concentrate gas removal system.
Background
Hemodialysis (HD) therapy and Hemofiltration (HF) therapy are the main treatment modalities that patients with uremia, acute and chronic renal failure, and end-of-care, are resistant to survival. The two treatment modes finally need to achieve the purpose of removing toxins and redundant water in the body through a hemodialyzer or hemofilter, which has no essential difference in structure and consists of a large number of hollow fiber tubes, wherein the hollow fiber tubes are semipermeable membranes with high permeability, small and medium molecular substances and water in the blood can freely pass through, and larger molecules (such as most proteins, plasma component substances, blood cells and the like) in the blood cannot pass through. Hemodialysis and hemofiltration treatments are carried out by introducing blood into a hemodialyzer (or filter) through a blood pump, and simultaneously introducing dialysate into a dialysate side of the hemodialyzer, wherein the dialysate and small molecular substances in the blood are subjected to substance exchange through a semipermeable membrane in the hemodialyzer by virtue of a concentration gradient.
The dialysate generally contains main electrolyte components (such as Na +, k +, mg2+, ca2+, cl-, CO2 and the like) in human blood or tissue fluid, and is an isotonic solution with various ion concentrations close to those in normal human bodies. It is generally prepared from heated reverse osmosis water and two concentrated solutions (respectively containing NaCl, KCl, caCl2, mgCl2, naHCO3, etc.). The dialysis water entering the equipment is mixed with the concentrated solution to prepare dialysate with isotonic concentration, the qualified dialysate can enter a dialyzer to exchange substances with blood after passing through the capacity balancing and ultrafiltration device, and the generated waste liquid is discharged out of the equipment after passing through the capacity balancing and ultrafiltration device.
The following situations arise where air bubbles in the concentrate enter the dialysate. 1. A concentrated solution is NaHCO3 saturated solution, and when the concentrated solution is used in winter, a large amount of bubbles can be separated out along with the rise of the temperature in a room. 2. The liquid in the concentrated solution barrel is used up. 3. When the concentrated solution in the central concentrated solution supply pipeline is insufficient, a large amount of bubbles appear
Air embolism can be produced to blood in the dislysate to the bubble in the dislysate and threatens patient's life, and the gas that mixes in the dislysate can lead to the dislysate flow unstable, or the one side of gathering in the dialysis membrane makes the dialysis effect poor, may produce dialysis treatment inadequately, dangerous and dehydration precision scheduling consequence. It is therefore desirable to remove air bubbles from the concentrate to prevent the air bubbles from entering the dialysate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a concentrated solution degassing system of blood purification equipment aiming at the defects.
The scheme is realized as follows:
a concentrated solution degassing system of blood purification equipment comprises a dialysis water pipeline, a first concentrated solution pipeline, a second concentrated solution pipeline and a dialysate pipeline; a degassing pipeline is arranged between the first concentrated solution pipeline and the second concentrated solution pipeline, the dialysis water pipeline and the first concentrated solution pipeline converge to form a first converging pipeline, the converged liquid and the second concentrated solution converge to form a second converging pipeline, and a medium in the second converging pipeline is discharged through the dialyzate pipeline.
Based on the structure of the concentrated solution degassing system of the blood purification equipment, the degassing pipeline comprises a degassing single line, a degassing pump, a pressure sensor and a first leakage detection electrode; the degassing single line is respectively connected with the first concentrated solution pipeline and the second concentrated solution pipeline; and 2 degassing single lines are converged and then sequentially connected with the first leakage detection electrode, the pressure sensor and the exhaust pump.
Based on the structure of the concentrated solution degassing system of the blood purification equipment, the degassing single line comprises a first electromagnetic valve, a second leakage detection electrode, a first liquid level monitoring sensor, a second liquid level monitoring sensor, a third liquid level monitoring sensor and a concentrated solution degassing tank; the second leak detection electrode is connected with the first electromagnetic valve and the concentrated solution degassing tank, and the first liquid level monitoring sensor, the second liquid level monitoring sensor and the third liquid level monitoring sensor are arranged at intervals in sequence from low to high along the height direction of the concentrated solution degassing tank respectively.
Based on above-mentioned blood purification equipment concentrate degassing system structure, first concentrate pipeline or second concentrate pipeline are connected with the degassing pipeline through concentrate degassing tank respectively, and the junction of first concentrate pipeline or second concentrate pipeline and concentrate degassing tank is the bottom position of concentrate degassing tank.
Based on the above-mentioned blood purification equipment concentrate degassing system structure, the first concentrate pipeline includes a first concentrate barrel, a second solenoid valve, a concentrate suction pipe and a first filter screen; the concentrate suction pipe and the first filter screen are connected and arranged in the first concentrate barrel, and the second electromagnetic valve is connected with the concentrate suction pipe.
Based on the structure of the concentrated solution degassing system of the blood purification equipment, a direct flushing pipeline is also arranged on the first concentrated solution pipeline; the direct flushing pipeline comprises a central concentrated solution supply joint, a second filter screen and a third electromagnetic valve; the direct flushing pipeline is communicated with the first concentrated solution pipeline; the central concentrate supply connection delivers the first concentrate to a concentrate degassing tank.
Based on above-mentioned blood purification equipment concentrate degassing system structure, still be provided with the delivery pump on the first concentrate pipeline, the delivery pump sets up the position behind the concentrate degassing tank.
Based on the structure of the concentrated solution degassing system of the blood purification equipment, a first mixing tank, a first conductivity sensor and a first temperature sensor are arranged on the first collecting pipeline; the first mixing tank, the first conductivity sensor and the first temperature sensor are sequentially arranged in the liquid flowing direction of the first confluence pipeline.
Based on the structure of the concentrated solution degassing system of the blood purification equipment, the second confluence pipeline comprises a second mixing tank, a second conductivity sensor and a second temperature sensor; the second mixing tank, the second conductivity sensor and the second temperature sensor are sequentially arranged in the liquid flowing direction of the second confluence pipeline; and ultimately to the dialysate line.
Based on the above structure of the concentrated solution degassing system of the blood purification equipment, the system also comprises an alarm device, wherein the alarm device is connected with a second liquid level monitoring sensor, and the first liquid level monitoring sensor is electrically connected with the delivery pumps in the first concentrated solution pipeline and the second concentrated solution pipeline; and the third liquid level monitoring sensor is connected with the exhaust pump.
Compared with the prior art, the beneficial effects of the utility model are that:
1. according to the scheme, bubbles in the pipeline can be effectively discharged, so that the bubbles cannot enter a rear-end dialysis loop to influence the precision of ultrafiltration, the safety of users in use is ensured, the concentration of the dialysate on the whole is accurate and adjustable, and the concentration of the dialysate cannot be influenced by the bubbles;
2. the concentrated solution degassing tank arranged in the scheme can enable the equipment to send out an alarm prompt after the liquid in the concentrated solution barrel is used up, so that the liquid changing time of a user is reserved for 3 minutes, seamless liquid changing can be realized, and the treatment is not suspended; the treatment continuity is ensured.
3. In this scheme, as long as the liquid level is less than the liquid level monitoring point on top, the degasification action can be carried out always, and the air pump lasts to open promptly, can guarantee like this that the user trades the liquid after, the liquid level can resume to the top automatically.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a dialysis water line; 2. a first concentrate line; 3. a second concentrate line; 4. a dialysate line; 5. a degassing pipeline; 6. a first conflux line; 7. a second conflux line; 8. directly flushing a pipeline; 9. a delivery pump; 21. a first concentrate barrel; 22. a second solenoid valve; 23. a concentrated solution straw; 24. a first filter screen; 41. degassing the single line; 42. an exhaust pump; 43. a pressure sensor; 44. a first leak detection electrode; 45. a first solenoid valve 46, a second leak detection electrode; 47. a first liquid level monitoring sensor; 48. a second liquid level monitoring sensor; 49. a third liquid level monitoring sensor; 50. degassing the concentrated solution in a degassing tank; 61. a first mixing tank; 62. a first conductivity sensor; 63. a first temperature sensor; 71. a second mixing tank; 72. a second conductivity sensor; 73. a second temperature sensor; 81. a central concentrated solution supply joint; 82. a second filter screen; 83. and a third solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
As shown in fig. 1, the utility model provides a technical scheme:
a concentrated solution degassing system of blood purification equipment comprises a dialysis water pipeline 1, a first concentrated solution pipeline 2, a second concentrated solution pipeline 3 and a dialysate pipeline 4; a degassing pipeline 5 is arranged between the first concentrated solution pipeline 2 and the second concentrated solution pipeline, the dialysis water pipeline 1 and the first concentrated solution pipeline 2 are converged to form a first converging pipeline 6, the converged liquid and the second concentrated solution are converged to form a second converging pipeline 7, and a medium in the second converging pipeline 7 is discharged through the dialysate pipeline 4;
the degassing line 5 includes a degassing single line 41, a degassing pump 42, a pressure sensor 43, and a first leak detection electrode 44; the degassing single line 41 is respectively connected with the first concentrated solution pipeline 2 and the second concentrated solution pipeline 3; the 2 degassing single wires 41 are converged and then sequentially connected with a first leakage detection electrode 44, a pressure sensor 43 and an exhaust pump 42;
based on the above structure, the gas in the degassing line 41 is removed by the exhaust pump 42; the pressure sensor 43 is used for measuring the pressure value in the degassing single line 41 and feeding back the pressure value to the exhaust pump 42, and the exhaust pump 42 adjusts the degassing strength according to the fed-back pressure; the first leak detection electrode 44 is used to detect a leak condition of the line.
The degassing single line 41 comprises a first electromagnetic valve 45, a second leakage detection electrode 46, a first liquid level monitoring sensor 47, a second liquid level monitoring sensor 48, a third liquid level monitoring sensor 49 and a concentrated solution degassing tank 50; the second leakage detection electrode 46 is connected with the first electromagnetic valve 45 and the concentrated solution degassing tank 50, and the first liquid level monitoring sensor 47, the second liquid level monitoring sensor 48 and the third liquid level monitoring sensor 49 are respectively arranged at intervals from low to high along the height direction of the concentrated solution degassing tank 50;
namely, a first liquid level monitoring sensor 47 is arranged in a concentrated liquid degassing tank 50 close to the bottom position, a second liquid level monitoring sensor 48 is arranged in the concentrated liquid degassing tank 50 close to the middle upper position, and a third liquid level monitoring sensor 49 is arranged in the concentrated liquid degassing tank 50 close to the top position;
the first concentrated solution pipeline 2 or the second concentrated solution pipeline 3 is respectively connected with the degassing pipeline 5 through a concentrated solution degassing tank 50, and the connecting position of the first concentrated solution pipeline 2 or the second concentrated solution pipeline 3 and the concentrated solution degassing tank 50 is the bottom position of the concentrated solution degassing tank 50;
based on the structure, when the first concentrated solution pipeline 2 or the second concentrated solution pipeline 3 is used for mixing, the medicament in the first concentrated solution pipeline 2 or the second concentrated solution pipeline 3 preferentially enters the concentrated solution degassing tank 50, and flows to the confluence part after the concentrated solution degassing tank 50 is fully hung; when the concentrated liquid degassing tank 50 is filled, the liquid level gradually overflows the positions of the first liquid level monitoring sensor 47, the second liquid level monitoring sensor 48 and the third liquid level monitoring sensor 49, when gas appears at the front end of the first concentrated liquid pipeline 2 or the front end of the second concentrated liquid pipeline 3, the concentrated liquid degassing tank 50 is filled for storage, the liquid level in the concentrated liquid degassing tank 50 is forced to descend, when the liquid level descends to the position of the liquid level of the third liquid level monitoring sensor 49, the exhaust pump 42 is started in a linkage manner to remove the gas in the concentrated liquid degassing tank 50, and the liquid level gradually rises to the position of the third liquid level monitoring sensor 49; therefore, the gas cannot be generated in the confluence process, and the use safety of a patient is ensured.
The first concentrate pipeline 2 comprises a first concentrate barrel 21, a second electromagnetic valve 22, a concentrate suction pipe 23 and a first filter screen 24; the concentrated solution suction pipe 23 is connected with the first filter screen 24 and is arranged in the first concentrated solution barrel 21, and the second electromagnetic valve 22 is connected with the concentrated solution suction pipe 23;
based on the above structure, the front end portion of the first concentrated solution pipeline 2 is opened or closed by the second electromagnetic valve 22, and the chemical in the first concentrated solution barrel 21 is conveyed to the concentrated solution degassing tank 50; the first filter screen 24 is used for filtering the medicament;
the first concentrated solution pipeline 2 is also provided with a direct flushing pipeline 8; the direct flushing line 8 comprises a central concentrate supply joint 81, a second sieve 82 and a third solenoid valve 83; the direct flushing pipeline 8 is communicated with the first concentrated solution pipeline 2; the central concentrate feed connection 81 delivers the first concentrate to the concentrate degassing tank 50; by opening and closing the second solenoid valve 22 and the third solenoid valve 83, it is selected whether the first concentrate in the tank is used as the source or the central concentrate supply joint 81 is used as the source.
The first concentrated solution pipeline 2 is also provided with a delivery pump 9, and the delivery pump 9 is arranged at a position behind the concentrated solution degassing tank 50; a power source is provided for the first concentrated solution pipeline 2 through a delivery pump 9;
the first confluence pipeline 6 is provided with a first mixing tank 61, a first conductivity sensor 62 and a first temperature sensor 63; the first mixing tank 61, the first conductivity sensor 62 and the first temperature sensor 63 are arranged in this order in the liquid flow direction of the first confluence pipe 6;
based on the above structure, the dialysis water line 1 and the first concentrate line 2 are mixed in the first mixing tank 61 in the first confluence line 6 to form a preliminary drug, and the first concentrate ratio is feedback-regulated by the delivery pump 9 and the first conductivity sensor 62; the first temperature sensor 63 is used for temperature coefficient compensation of the first conductivity sensor 62.
The second concentrated solution pipeline 3 is arranged the same as the first concentrated solution pipeline 2; the second concentrated solution pipeline 3 and the first confluence pipeline 6 are subjected to confluence mixing again on a second confluence pipeline 7;
the second confluence line 7 includes a second mixing tank 71, a second conductivity sensor 72, and a second temperature sensor 73; the second mixing tank 71, the second conductivity sensor 72, and the second temperature sensor 73 are provided in this order in the liquid flow direction of the second confluence pipe 7; finally communicated with a dialysate pipeline 4;
based on the above structure, the primary medicament and the second concentrated solution are mixed in the second mixing tank 71 in the second confluence pipeline 7 to finally form the dialysate, and the proportion of the second concentrated solution is feedback-regulated by the delivery pump 9 and the second conductivity sensor 72 in the second concentrated solution pipeline 3; the second temperature sensor 73 is used for temperature coefficient compensation of the second conductivity sensor 72.
Example 2
Based on the above embodiment, the present embodiment further includes an alarm device, the alarm device is connected to the second liquid level monitoring sensor 48, and the first liquid level monitoring sensor 47 is electrically connected to the delivery pumps 9 in the first concentrated solution pipeline 2 and the second concentrated solution pipeline 3; the third liquid level monitoring sensor 49 is connected with the exhaust pump 42;
based on the above structure, when the liquid level is lower than the third liquid level monitoring sensor 49 at the top end, the first solenoid valve 45 for degassing is opened, and air is pumped out by the air pump 42 and discharged into the atmosphere until the liquid level reaches the liquid level monitoring point at the top end. The exhaust pump 42 can adjust the degassing strength through pressure feedback measured by the pressure sensor 43; this operation removes entrained air bubbles from the concentrate.
When the concentrate is used up, the air continuously enters the concentrate degassing tank 50, even if the degassing solenoid valve is opened, the liquid level cannot be lifted, when the liquid level is lowered to the middle liquid level monitoring point (the second liquid level monitoring sensor 48), the equipment can send out the alarm prompt of liquid change, the generation of the dialysate can be continuously maintained by the liquid in the concentrate degassing tank 50 at the moment, as long as the liquid change is completed before the liquid level reaches the liquid level monitoring point (the first liquid level monitoring sensor 47) at the bottom end, the air cannot enter the mixing tank, and the stored liquid can be used for 3 minutes generally. When the liquid level dropped to the liquid level monitoring point (first liquid level monitoring sensor 47) of bottom, the interlocking closed delivery pump 9 in first concentrate pipeline 2 and the second concentrate pipeline 3, prevented that the air from getting into the blending tank, and the user trades the liquid back, clicks the recovery button of equipment, can restart delivery pump 9 in first concentrate pipeline 2 and the second concentrate pipeline 3.
In this scheme, as long as the liquid level is less than the liquid level monitoring point on top, the degasification action can be carried out always, and the air pump 42 lasts to open promptly, can guarantee like this that the user trades the liquid back, and the liquid level can resume to the top automatically.
According to the scheme, bubbles in the pipeline can be effectively discharged, the safety of users in use is ensured, and the concentration of the dialysate in the whole scheme is accurate and adjustable and cannot be influenced by the bubbles;
in addition, the concentrated solution degassing tank 50 arranged in the scheme can enable the equipment to send out an alarm prompt after the liquid in the concentrated solution barrel is used up, so that the liquid changing time of a user is reserved for 3 minutes, seamless liquid changing can be realized, and the treatment is not suspended; the treatment continuity is ensured.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A concentrated solution degassing system of blood purification equipment is characterized by comprising a dialysis water pipeline, a first concentrated solution pipeline, a second concentrated solution pipeline and a dialysate pipeline; a degassing pipeline is arranged between the first concentrated solution pipeline and the second concentrated solution pipeline, the dialysis water pipeline and the first concentrated solution pipeline converge to form a first converging pipeline, the converged liquid and the second concentrated solution converge to form a second converging pipeline, and a medium in the second converging pipeline is discharged through the dialyzate pipeline.
2. A blood purification apparatus concentrate degassing system according to claim 1 wherein: the degassing pipeline comprises a degassing single line, a degassing pump, a pressure sensor and a first leakage detection electrode; the degassing single line is respectively connected with the first concentrated solution pipeline and the second concentrated solution pipeline; and 2 degassing single lines are converged and then sequentially connected with the first leakage detection electrode, the pressure sensor and the exhaust pump.
3. A blood purification apparatus concentrate degassing system according to claim 2 wherein: the degassing single line comprises a first electromagnetic valve, a second leakage detection electrode, a first liquid level monitoring sensor, a second liquid level monitoring sensor, a third liquid level monitoring sensor and a concentrated solution degassing tank; the second leakage detection electrode is connected with the first electromagnetic valve and the concentrated solution degassing tank, and the first liquid level monitoring sensor, the second liquid level monitoring sensor and the third liquid level monitoring sensor are arranged at intervals in sequence from low to high along the height direction of the concentrated solution degassing tank respectively.
4. A blood purification apparatus concentrate degassing system as recited in claim 3 wherein: the first concentrated solution pipeline or the second concentrated solution pipeline is connected with the degassing pipeline through a concentrated solution degassing tank respectively, and the joint of the first concentrated solution pipeline or the second concentrated solution pipeline and the concentrated solution degassing tank is the bottom position of the concentrated solution degassing tank.
5. A blood purification apparatus concentrate degassing system as recited in claim 4 wherein: the first concentrated solution pipeline comprises a first concentrated solution barrel, a second electromagnetic valve, a concentrated solution suction pipe and a first filter screen; the concentrate suction pipe is connected with the first filter screen and arranged in the first concentrate barrel, and the second electromagnetic valve is connected with the concentrate suction pipe.
6. A blood purification apparatus concentrate degassing system according to claim 5 wherein: a direct flushing pipeline is also arranged on the first concentrated liquid pipeline; the direct flushing pipeline comprises a central concentrated solution supply joint, a second filter screen and a third electromagnetic valve; the direct flushing pipeline is communicated with the first concentrated solution pipeline; the central concentrate supply connection delivers the first concentrate to a concentrate degassing tank.
7. A blood purification apparatus concentrate degassing system as recited in claim 6 wherein: and the first concentrated liquid pipeline is also provided with a delivery pump, and the delivery pump is arranged at the position behind the concentrated liquid degassing tank.
8. A blood purification apparatus concentrate degassing system as recited in claim 7 wherein: the first collecting pipeline is provided with a first mixing tank, a first conductivity sensor and a first temperature sensor; the first mixing tank, the first conductivity sensor and the first temperature sensor are sequentially arranged in the liquid flowing direction of the first confluence pipeline.
9. A blood purification apparatus concentrate degassing system as recited in claim 8 wherein: the second confluence pipeline comprises a second mixing tank, a second conductivity sensor and a second temperature sensor; the second mixing tank, the second conductivity sensor and the second temperature sensor are sequentially arranged in the liquid flowing direction of the second confluence pipeline; and ultimately to the dialysate line.
10. A blood purification apparatus concentrate degassing system according to claim 9 wherein: the device comprises an alarm device, wherein the alarm device is connected with a second liquid level monitoring sensor, and a first liquid level monitoring sensor is electrically connected with delivery pumps in a first concentrated solution pipeline and a second concentrated solution pipeline; and the third liquid level monitoring sensor is connected with the exhaust pump.
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| CN202220707873.6U CN217548657U (en) | 2022-03-29 | 2022-03-29 | Concentrated solution degassing system of blood purification equipment |
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| CN202220707873.6U CN217548657U (en) | 2022-03-29 | 2022-03-29 | Concentrated solution degassing system of blood purification equipment |
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