CN113522083B - Jet rotary stirring device for preparing dialysate - Google Patents
Jet rotary stirring device for preparing dialysate Download PDFInfo
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- CN113522083B CN113522083B CN202110843706.4A CN202110843706A CN113522083B CN 113522083 B CN113522083 B CN 113522083B CN 202110843706 A CN202110843706 A CN 202110843706A CN 113522083 B CN113522083 B CN 113522083B
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- jet rotary
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- 238000003756 stirring Methods 0.000 title claims abstract description 152
- 239000007921 spray Substances 0.000 claims abstract description 143
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000002360 preparation method Methods 0.000 claims abstract description 61
- 238000000502 dialysis Methods 0.000 claims abstract description 50
- 239000000243 solution Substances 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 32
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 25
- 230000002441 reversible effect Effects 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 16
- 230000004087 circulation Effects 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 11
- 239000000385 dialysis solution Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 230000004089 microcirculation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 24
- 238000005507 spraying Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000004090 dissolution Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001631 haemodialysis Methods 0.000 description 2
- 230000000322 hemodialysis Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241000192710 Microcystis aeruginosa Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model provides a spray rotatory stirring device for dislysate is prepared, reverse osmosis water passes through circulation line I, miniature circulating water pump and circulation line II gets into and sprays rotatory stirring shower nozzle, some solution in the shower nozzle intercommunication inner chamber jets out the water column through the rotatory hole of reverse thrust type injection, the reaction force that produces promotes and sprays rotatory stirring shower nozzle and continuously rotate, act on container bottom dialysis powder, make it be in suspended state, realize the rotatory stirring of spraying to dialysis powder and reverse osmosis water, spray rotatory stirring shower nozzle rotatory washs, and can not keep the dead angle, not only realize that the dialysate is abundant complete misce bene, moreover in mixing stirring in-process, can not produce vortex, bubble, spray etc. to improve the dislysate quality. The preparation of the dialysis concentrated solution can be completed by using the jet rotary stirring spray head and using the micropump with smaller power, the noise is low, and the preparation method is suitable for completing the preparation of the dialysis concentrated solution in a quiet medical environment with higher efficiency and high quality.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a jet rotary stirring device for preparing a dialysis solution, which is used in the process of preparing a hemodialysis concentrated solution.
Background
Before hemodialysis treatment is carried out on uremic patients in a hospital dialysis center or an independent dialysis center, two concentrated dialyzates are needed to be prepared: liquid A and liquid B (hereinafter referred to as dialysis liquid). Wherein the main component of the solution B is sodium bicarbonate (NaHCO) 3 ) The solution is required to reduce bicarbonate ions as much as possible in the preparation process - HCO 3 ) Loss of (NaHCO) 3 +H 2 O→Na 2 CO 3 +CO 2 ∈). The specific method comprises the following steps: (1) the preparation and stirring time is not too long; (2) water splash or vortex formation is not preferable during stirring. The current operation flow (the preparation method of the two concentrated solutions is the same, and the preparation dosage is constant): the dialysis powder (solute) is placed into a preparation container, quantitative reverse osmosis water (solvent) is injected, stirring is carried out, filtering is carried out after complete dissolution, and split charging is carried out, thus the dialysis powder can be used or used. The method is characterized in that the stirring method during the preparation is as follows: 1. the connecting rod-blade extending into the container is driven to rotate by a motor to stir; 2. the dialysis powder (solute) +reverse osmosis water (solution) sunk at the bottom of the container is sucked into the pump by the water pump, pumped into the container again through the communication pipeline, and stirred in a circulating and reciprocating mode.
When the solute and the solvent are dissolved in a static state, the method is characterized in that: (1) the solid solute with higher specific gravity sinks at the bottom of the container; (2) from the bottom of the container to the surface of the solvent are: solute → saturated solution → higher concentration solution → lower concentration solution → solvent. (3) Under the same temperature conditions, the dissolution rate depends on the concentration of the solution around the solid solute, i.e., the lower the concentration of the solution, the faster the dissolution rate of the solute. When external force is used for stirring and dissolving, the solute is in a suspension flow state and the effect is to continuously change (reduce) the solution around the solid soluteConcentration, dissolution process is accelerated. However, when preparing a dialysate, stirring by using the two methods described above has the following disadvantages or drawbacks: 1. the motor drives the blades to rotate and stir, water spray or vortex is easy to appear, and the B liquid active ingredient is [ ] — HCO 3 ) Is easy to lose; 2. the water pump is used, the impeller in the pump is contacted with solid solute for a long time under high-speed operation, the damage rate is high, and at least 1-2 water pumps can be replaced each year; 3. the dissolution efficiency is relatively low: in order to ensure that dialysis powder (solute) can float in solution without dead angle, a motor-driven blade is required to be arranged at a position close to the bottom of a container, or water flow sprayed by a water pump is required to be inclined downwards; the two structures can suspend most of solid solutes in a solution with relatively high concentration for dissolution, so that a longer stirring process is needed; 4. the two schemes have the defects that the power of a motor or a water pump is high, that is, the noise is high during operation, and the two schemes are not suitable for the quiet medical environment. In view of the above, improvements have therefore been proposed.
Disclosure of Invention
The invention solves the technical problems that: the invention provides a spray rotary stirring device for preparing a dialysis fluid, which adopts a mixing mode of reverse osmosis water or lower concentration solution spray rotary stirring, so that the dialysis fluid can be fully and completely mixed uniformly without dead angles, vortex, bubbles, water and the like can not be generated in the mixing and stirring process, and the preparation efficiency and quality of the dialysis fluid are improved; the reverse osmosis water or the solution with lower concentration is sucked from the upper part (below the liquid level) of the preparation container by using the jet rotary stirring spray head, the impeller in the pump can not touch and rub with solid solute, the preparation of the dialysis concentrated solution can be completed by using the micro pump with lower power, the damage rate of the pump is reduced, and the method is suitable for completing the preparation of the dialysis concentrated solution in a quiet medical environment with higher efficiency and high quality.
The invention adopts the technical scheme that: the spray rotary stirring device for preparing the dialysate comprises a preparation container, wherein the upper end of the preparation container is provided with a filler port for placing dialysis powder and injecting reverse osmosis water, the spray rotary stirring device further comprises a spray rotary stirring spray head and a miniature circulating water pump, the inlet of the miniature circulating water pump is connected with a circulating pipeline I, the outlet of the miniature circulating water pump is connected with one end of a circulating pipeline II, the other end of the circulating pipeline II passes through the center of the bottom wall of the preparation container in a sealing manner and stretches into the bottom of an inner cavity of the preparation container, and the end of the circulating pipeline II stretching into the preparation container is rotatably connected with the spray rotary stirring spray head; the spray rotary stirring spray head is hollow in inner cavity and forms a spray head communicating inner cavity, a plurality of small spray holes communicated with the spray head communicating inner cavity are uniformly formed on the surface of the spray rotary stirring spray head, a plurality of reverse pushing type spray rotary holes are uniformly distributed on the circumference of the middle part of the spray rotary stirring spray head, and the reverse pushing type spray rotary holes are communicated with the spray head communicating inner cavity; the reverse osmosis water injected into the preparation container and used for being mixed with the dialysis powder enters a spray head communicating cavity of the spray rotary stirring spray head through a circulating pipeline I, a miniature circulating water pump and a circulating pipeline II, the reverse osmosis water in the spray head communicating cavity is sprayed through a plurality of small spray holes to be mixed with the dialysis powder, and part of the reverse osmosis water in the spray head communicating cavity is sprayed through the reverse osmosis spray rotary holes to generate a reaction force to enable the spray rotary stirring spray head to rotate, so that spray rotary stirring of the dialysis powder and the reverse osmosis water is realized.
Further limiting the technical scheme, the spray rotary stirring spray head is in a spherical structure, a hemispherical structure or a cylindrical structure.
Further limiting the technical scheme, the outer wall of the jet rotary stirring spray head is of a thick-wall structure or a thin-wall structure.
Further limiting the technical scheme, a plurality of reverse pushing type injection rotating holes on the circumference of the middle part of the injection rotating stirring spray head incline to the same direction in the circumferential plane by taking a circular tangent line as a reference.
Further limiting the technical scheme, for the thin-wall jet rotary stirring nozzle, the reverse pushing type jet rotary hole is formed by fixedly connecting an inclined tube on the inner wall of the jet rotary stirring nozzle according to a required inclination angle, or the reverse pushing type jet rotary hole is formed by forming a notch on the surface of the jet rotary stirring nozzle and inwards pressing the wall surface on one side of the notch according to the inclination angle; for the thick-wall jet rotary stirring nozzle, the back-pushing jet rotary hole is directly machined on the wall of the jet rotary stirring nozzle.
Further limiting the technical scheme, and uniformly distributing a plurality of large jet flushing holes on the circumference of the jet rotary stirring nozzle wall on the same plane with the reverse pushing type jet rotary holes.
Further limiting the technical scheme, the injection rotary stirring spray head is divided into an upper half and a lower half, the upper half and the lower half are connected through a threaded connection structure, and the injection rotary stirring spray head is integrally made of medical plastic.
By further limiting the technical scheme, the bottom of the jet rotary stirring spray head is provided with a mounting hole, a gap at the end part of the circulating pipeline II penetrates through the mounting hole to extend into the spray head communication inner cavity, and the end head is limited by a limiting head; the circulating pipeline II is in sealing connection with the bottom wall of the preparation container through a sealing block.
Further defining the above technical solution, the inner side surface of the sealing block is higher than the inner side surface of the bottom wall of the dispensing container.
The technical scheme is further limited, the circulation pipeline I is communicated with the inner cavity of the preparation container, and the dialysis mixed solution in the preparation container can realize the jet rotary stirring of circulating flow through the circulation pipeline I, the miniature circulation water pump, the circulation pipeline II and the jet rotary stirring nozzle; the installation position of the circulating pipeline I on the side wall of the preparation container is lower than the liquid level of the dialysis solution in the preparation container.
Compared with the prior art, the invention has the advantages that:
1. when the scheme works, reverse osmosis water enters a spray head communicating cavity of the spray rotary stirring spray head through a circulating pipeline I, a miniature circulating water pump and a circulating pipeline II, the reverse osmosis water in the spray head communicating cavity is sprayed through a plurality of small spray holes to dissolve dialysis powder, a part of reverse osmosis water in the spray head communicating cavity is sprayed out of a water column through the reverse push type spray rotary holes, the generated reaction force pushes the spray rotary stirring spray head to continuously rotate, the dialysis powder acts on the bottom of a container to enable the dialysis powder to be in a suspension state, spray rotary stirring of the dialysis powder and the reverse osmosis water is realized, the spray rotary stirring spray head rotates to wash, dead angles are not reserved, and the mixing mode can not only realize full and complete mixing uniformity of the dialysis liquid, but also can not generate vortex, bubble, water bloom and the like in the mixing stirring process, so that the quality of the dialysis liquid is improved;
2. according to the scheme, the preparation of the dialysis concentrated solution can be completed by using the jet rotary stirring spray head and using the micropump with smaller power, so that the noise is low, and the method is suitable for completing the preparation of the dialysis concentrated solution in a quiet medical environment with higher efficiency and high quality;
3. in the scheme, the solution with lower concentration at the upper part of the dialysis mixed solution which is subjected to jet rotation stirring in the preparation container can realize circulation flow mixing through the circulation pipeline I, the miniature circulating water pump, the circulation pipeline II and the jet rotation stirring nozzle, so that the liquid sprayed by the jet rotation stirring nozzle is reverse osmosis water just before the liquid is in contact with solute, namely dialysis powder is suspended in the solution with lower concentration, namely the dissolving process is high in efficiency, the water pump is not easy to damage, the service life of the water pump is prolonged, the replacement frequency of the water pump is reduced, and the cost is reduced;
4. in the scheme, the small spray holes of the spray rotary stirring spray head are arranged, so that the effect of spraying and uniformly mixing the solution is achieved in the solute dissolving process;
5. in the scheme, a circulation pipeline II is in sealing connection with the bottom wall of the preparation container through a sealing block, so that the solution in the preparation container is prevented from leaking; the inner side surface of the sealing block is higher than the inner side surface of the bottom wall of the preparation container, the surface of the sealing block, which is higher than the sealing block, props up the spraying rotary stirring nozzle, so that the lower surface of the spraying rotary stirring nozzle is only contacted with the upper surface of the sealing block and is not contacted with the inner surface of the bottom wall of the preparation container, the contact area of the spraying rotary stirring nozzle is reduced, the friction force is reduced, and the spraying rotary stirring nozzle can rotate under small reaction force;
6. in the scheme, the spray rotary stirring nozzle is externally made into a spherical structure, a hemispherical structure or a cylindrical structure, so that the rotation resistance of the spray rotary stirring nozzle under the reaction force can be reduced;
7. in the scheme, the injection rotary stirring spray head is divided into an upper half and a lower half, and the upper half and the lower half are connected through a threaded connection structure, and the structure is favorable for the installation of the injection rotary stirring spray head on a circulating pipeline II, so that the installation is convenient and simple.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a spray rotary stirring nozzle with a spherical structure in the invention;
FIG. 3 is a schematic view of the structure of the counter-thrust jet rotating orifice in the jet rotating stirring jet head of FIG. 2 A-A according to the present invention;
FIG. 4 is a schematic view showing the structure of a small spray hole of the spray rotary stirring spray head shown in the direction B in FIG. 2 according to the present invention;
FIG. 5 is a schematic diagram of the installation structure of a hemispherical jet rotary stirring nozzle;
FIG. 6 is a schematic diagram of a cylindrical spray rotary stirring nozzle according to the present invention;
FIG. 7 is a schematic diagram showing the structure of a reverse-pushing type jet rotary hole with a cutting pressure on a thin-wall ball type jet rotary stirring nozzle according to the present invention
FIG. 8 is a schematic diagram of a structure of a reverse pushing type jet rotary hole with an inclined tube on a thin-wall spherical jet rotary stirring nozzle;
FIG. 9 is a schematic diagram of a thin-wall spherical jet rotary stirring nozzle in the invention;
FIG. 10 is a schematic diagram of a jet rotary stirring nozzle with large jet flushing holes in the invention;
FIG. 11 is a top plan view of a thin-walled spray rotary stirring nozzle with large spray flushing holes in accordance with the present invention;
FIG. 12 is a block diagram of a thin-walled spray rotary stirring nozzle with large spray flushing holes in accordance with the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The inclusion of an element as defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Referring to fig. 1-12, embodiments of the present invention are described in detail.
Example 1:
the spray rotary stirring device for preparing the dialysate comprises a preparation container 1, wherein a filler port 1-1 for placing dialysis powder and injecting reverse osmosis water is arranged at the upper end of the preparation container 1, as shown in figures 1 and 2. The device is characterized by further comprising a jet rotary stirring spray head 2 and a micro circulating water pump 3, wherein an inlet of the micro circulating water pump 3 is connected with a circulating pipeline I4, an outlet of the micro circulating water pump 3 is connected with one end of a circulating pipeline II 5, the other end of the circulating pipeline II 5 penetrates through the center of a container bottom wall 1-2 of the preparation container 1 in a sealing manner and stretches into the bottom of an inner cavity of the preparation container 1, and the end of the circulating pipeline II 5 stretching into the preparation container 1 is rotatably connected with the jet rotary stirring spray head 2. The inner cavity of the spraying rotary stirring spray head 2 is hollow and forms a spray head communicating inner cavity 2-5, and a plurality of small spray holes 2-1 communicated with the spray head communicating inner cavity 2-5 are uniformly formed on the surface of the spraying rotary stirring spray head 2, as shown in fig. 4; the middle part of the jet rotary stirring spray head 2 is circumferentially and uniformly provided with a plurality of reverse pushing type jet rotary holes 2-2, and the reverse pushing type jet rotary holes 2-2 are communicated with a spray head communicating inner cavity 2-5. The reverse osmosis water, namely solvent, which is injected into the preparation container 1 and is mixed with the dialysis powder enters a spray head communicating cavity 2-5 of the spray rotary stirring spray head 2 through a circulating pipeline I4, a miniature circulating water pump 3 and a circulating pipeline II 5, the reverse osmosis water in the spray head communicating cavity 2-5 is sprayed through a plurality of small spray holes 2-1 to be mixed with the dialysis powder, and a part of solution in the spray head communicating cavity 2-5 is sprayed through the reverse push type spray rotary hole 2-2 to generate a reaction force to enable the spray rotary stirring spray head 2 to rotate, so that spray rotary stirring of the dialysis powder and the solvent is realized.
When the invention works, solvent enters the spray head communicating cavity 2-5 of the spray rotary stirring spray head 2 through the circulating pipeline I4, the miniature circulating water pump 3 and the circulating pipeline II 5, the solvent in the spray head communicating cavity 2-5 is sprayed through the plurality of small spray holes 2-1 to permeate into dialysis powder reversely, and the friction resistance of the dialysis powder contacted with the spray rotary stirring spray head 2 is reduced firstly; in addition, a part of solution in the spray head communicating inner cavity 2-5 is sprayed out of the water column through the reverse pushing type spray rotating hole 2-2, the generated reaction force pushes the spray rotating stirring spray head 2 to continuously rotate and acts on dialysis powder at the bottom of the container to enable the dialysis powder to be in a suspension state, spray rotating stirring of the dialysis powder and reverse osmosis water is achieved, the spray rotating stirring spray head rotates and washes out, no dead angle exists, and the mixing mode can achieve full and complete uniform mixing of the dialysis liquid, and in the mixing stirring process, vortex, bubbles, water and the like cannot be generated, so that the quality of the dialysis liquid is improved.
Moreover, by using the jet rotary stirring spray head 2, the preparation of the dialysis concentrated solution can be completed by using a micro pump with smaller power, the noise is low, and the method is suitable for completing the preparation of the dialysis concentrated solution in a quiet medical environment with higher efficiency and high quality.
Example 2:
the outer shape of the jet rotary stirring nozzle 2 is a spherical structure 10 (shown in figure 2), a hemispherical structure 11 (shown in figure 5) or a cylindrical structure 12 (shown in figure 6); this structure can reduce the rotational resistance of the jet rotary stirring jet head 2 under the reaction force.
Example 3:
the outer wall of the jet rotary stirring nozzle 2 is of a thick-wall structure or a thin-wall structure, and is shown in a thick-wall material schematic diagram in fig. 2 and 5, and is shown in a thin-wall material schematic diagram in fig. 9 and 11, so that the range of manufacturing materials is wide.
Example 4:
the plurality of reverse-pushing type injection rotation holes 2-2 on the circumference of the middle part of the injection rotation stirring nozzle 2 are inclined in the same direction on the basis of the circular tangent line in the circumferential plane, as shown in fig. 3, the reaction force generated by the injection of the plurality of reverse-pushing type injection rotation holes 2-2 can jointly apply force along the same direction on the surface, so as to promote the rotation of the injection rotation stirring nozzle 2.
Example 5:
for the thin-walled jet rotary stirring jet head 2, as shown in fig. 9 and 11, the back-push type jet rotary hole 2-2 is formed by fixedly connecting an inclined tube to the inner wall of the jet rotary stirring jet head 2 at a desired inclination angle, as shown in fig. 8, or the back-push type jet rotary hole 2-2 is formed by cutting a slit in the surface of the jet rotary stirring jet head 2, as shown in fig. 7, and pressing the wall surface of one side of the slit inward at an inclination angle. The thin wall structure can lighten the weight of the jet rotary stirring nozzle 2, and is convenient for the rotation of the jet rotary stirring nozzle. For the thick-wall jet rotary stirring nozzle 2, the counter-pushing jet rotary hole 2-2 is formed by directly drilling holes in the wall of the jet rotary stirring nozzle 2, and the thick-wall structure of course increases the weight of the jet rotary stirring nozzle 2 to a certain extent, but has the advantages of firm structure, durability and long service life.
Example 6:
the large jet flushing holes 2-6 are uniformly distributed on the circumference of the wall of the jet rotary stirring nozzle 2 in the same plane with the reverse pushing type jet rotary holes 2-2, as shown in figures 10, 11 and 12, the large jet flushing holes 2-6 jet large water columns, so that dead angles in a container can be flushed, and dead angle-free stirring is further realized.
Example 7:
the spray rotary stirring spray head 2 is divided into an upper half and a lower half, and the upper half and the lower half are connected through a threaded connection structure 2-4, and the structure is favorable for the installation of the spray rotary stirring spray head 2 on a circulating pipeline II 5, so that the installation is convenient and simple. Preferably, the whole jet rotary stirring spray head 2 is made of medical plastic, so that the stirring of the dialysate meets the medical requirements.
Example 8:
the bottom of the jet rotary stirring spray head 2 is provided with a mounting hole 2-3, a gap at the end part of the circulating pipeline II 5 penetrates through the mounting hole 2-3 and stretches into the spray head communicating inner cavity 2-5, the end is limited by a limiting head 9, and the structure is used for ensuring that the jet rotary stirring spray head 2 can be rotationally connected with the end part of the circulating pipeline II 5.
The circulation pipeline II 5 is in sealing connection with the container bottom wall 1-2 of the preparation container 1 through a sealing block 8, so that the solution in the preparation container is prevented from leaking.
The inner side surface of the sealing block 8 is higher than the inner side surface of the container bottom wall 1-2 of the preparation container 1, the surface of the sealing block 8, which is higher than the inner side surface of the container bottom wall 1-2 of the preparation container 1, supports the spraying rotary stirring spray head 2, so that the lower surface of the spraying rotary stirring spray head 2 is only contacted with the upper surface of the sealing block 8 and is not contacted with the inner surface of the container bottom wall 1-2 of the preparation container 1, the contact area of the spraying rotary stirring spray head 2 is reduced, the friction force is reduced, and the spraying rotary stirring spray head 2 can rotate under a small reaction force.
Example 9
The circulating pipeline I4 is communicated with the inner cavity of the preparation container 1, and the installation position of the circulating pipeline I4 on the side wall of the preparation container 1 is lower than the liquid level of the dialysis solution in the preparation container 1. The dialysis mixed solution in the preparation container 1 can realize the jet rotary stirring of the circulating flow through a circulating pipeline I4, a miniature circulating water pump 3, a circulating pipeline II 5 and a jet rotary stirring spray head 2.
The structure can enable the solution with lower concentration at the upper part of the dialysis mixed solution which is subjected to jet rotation stirring in the preparation container 1 to realize circulating flow mixing through the circulating pipeline I4, the miniature circulating water pump 3, the circulating pipeline II 5 and the jet rotation stirring spray head 2, so that the liquid sprayed out by the jet rotation stirring spray head 2 is reverse osmosis water just before, and then is the solution with lower concentration, the rotary impeller in the pump body is not contacted with solute in a touch manner, namely dialysis powder is suspended in the solvent/solution with lower concentration, namely the dissolving process efficiency is high, and the water pump is not easy to damage.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. A jet rotary stirring device for preparing dialysate comprises a preparation container (1), wherein a filler port (1-1) for placing dialysis powder and injecting reverse osmosis water is arranged at the upper end of the preparation container (1), and the jet rotary stirring device is characterized in that: the device is characterized by further comprising an injection rotary stirring spray head (2) and a miniature circulating water pump (3), wherein an inlet of the miniature circulating water pump (3) is connected with a circulating pipeline I (4), an outlet of the miniature circulating water pump (3) is connected with one end of a circulating pipeline II (5), the other end of the circulating pipeline II (5) passes through the center of a container bottom wall (1-2) of a preparation container (1) in a sealing manner and stretches into the bottom of an inner cavity of the preparation container (1), and the end of the circulating pipeline II (5) stretching into the preparation container (1) is rotatably connected with the injection rotary stirring spray head (2); the inner cavity of the jet rotary stirring nozzle (2) is hollow and forms a nozzle communicating inner cavity (2-5), a plurality of small jet holes (2-1) communicated with the nozzle communicating inner cavity (2-5) are uniformly arranged on the surface of the jet rotary stirring nozzle (2), a plurality of reverse pushing type jet rotary holes (2-2) are uniformly distributed on the circumference of the middle part of the jet rotary stirring nozzle (2), and the reverse pushing type jet rotary holes (2-2) are communicated with the nozzle communicating inner cavity (2-5); the anti-water seepage solvent injected into the preparation container (1) for mixing with the dialysis powder enters a spray head communicating cavity (2-5) of the spray rotary stirring spray head (2) through a circulating pipeline I (4), a miniature circulating water pump (3) and a circulating pipeline II (5), the solvent in the spray head communicating cavity (2-5) is sprayed through a plurality of small spray holes (2-1) to be mixed with the dialysis powder, and the friction resistance of the dialysis powder contacted with the spray rotary stirring spray head (2) is reduced; after a part of reverse osmosis water solution in the nozzle communicating inner cavity (2-5) is ejected out of the water column through the reverse push type jet rotary hole (2-2), the generated reaction force pushes the jet rotary stirring nozzle (2) to continuously rotate and acts on dialysis powder at the bottom of the container to enable the dialysis powder to be in a suspension state, so that jet rotary stirring of the dialysis powder and reverse osmosis water is realized, the jet rotary stirring nozzle is rotationally flushed, and no dead angle exists;
the circulation pipeline I (4) is communicated with the inner cavity of the preparation container (1), and the dialysis mixed solution in the preparation container (1) can realize the jet rotary stirring of the circulating flow through the circulation pipeline I (4), the micro circulation water pump (3), the circulation pipeline II (5) and the jet rotary stirring spray head (2); the installation position of the circulating pipeline I (4) on the side wall of the preparation container (1) is lower than the liquid level of the dialysis solution in the preparation container (1);
the external shape of the jet rotary stirring nozzle (2) is a spherical structure (10), a hemispherical structure (11) or a cylindrical structure (12);
a plurality of large jet flushing holes (2-6) are uniformly distributed on the circumference of the wall of the jet rotary stirring nozzle (2) on the same plane with the reverse pushing type jet rotary holes (2-2), and the large jet flushing holes (2-6) jet large water columns, so that dead angles in a container can be flushed, and dead angle-free stirring is further realized;
a plurality of reverse pushing type injection rotating holes (2-2) on the circumference of the middle part of the injection rotating stirring spray head (2) incline in the same direction in the circumferential plane by taking a circular tangent line as a reference;
for the thin-wall jet rotary stirring nozzle (2), the reverse pushing type jet rotary hole (2-2) is formed by fixedly connecting an inclined tube on the inner wall of the jet rotary stirring nozzle (2) according to a required inclined angle, or the reverse pushing type jet rotary hole (2-2) is formed by forming a notch on the surface of the jet rotary stirring nozzle (2) and inwards pressing the wall surface on one side of the notch according to the inclined angle; for the thick-wall jet rotary stirring spray head (2), the back-pushing type jet rotary hole (2-2) is directly processed on the wall of the jet rotary stirring spray head (2);
the jet rotary stirring spray head (2) is divided into an upper half and a lower half, the two halves are connected through a threaded connection structure (2-4), and the jet rotary stirring spray head (2) is integrally made of medical plastic.
2. The jet rotary stirring device for dialysate formulation of claim 1, wherein: the outer wall of the jet rotary stirring spray head (2) is of a thick-wall structure or a thin-wall structure.
3. The jet rotary stirring device for dialysate formulation of claim 1, wherein: the bottom of the jet rotary stirring spray head (2) is provided with a mounting hole (2-3), an end gap of the circulating pipeline II (5) penetrates through the mounting hole (2-3) and stretches into the spray head communication cavity (2-5), and the end is limited by a limiting head (9); the circulating pipeline II (5) is in sealing connection with the bottom wall (1-2) of the preparation container (1) through a sealing block (8).
4. The jet rotary stirring device for dialysate formulation of claim 3, wherein: the inner side surface of the sealing block (8) is higher than the inner side surface of the bottom wall (1-2) of the preparation container (1).
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