CN104248781B - A kind of hemodialysis concentrated solution central liquid supply system - Google Patents
A kind of hemodialysis concentrated solution central liquid supply system Download PDFInfo
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- CN104248781B CN104248781B CN201410403779.1A CN201410403779A CN104248781B CN 104248781 B CN104248781 B CN 104248781B CN 201410403779 A CN201410403779 A CN 201410403779A CN 104248781 B CN104248781 B CN 104248781B
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- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 238000001631 haemodialysis Methods 0.000 title claims abstract description 23
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 230000001954 sterilising effect Effects 0.000 claims abstract description 46
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 36
- 238000000502 dialysis Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 239000000243 solution Substances 0.000 claims description 117
- 239000000645 desinfectant Substances 0.000 claims description 69
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 21
- 239000000385 dialysis solution Substances 0.000 claims description 13
- 238000011049 filling Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 101100284769 Drosophila melanogaster hemo gene Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/168—Sterilisation or cleaning before or after use
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention discloses a kind of hemodialysis concentrated solution central liquid supply system, and system comprises liquid make-up machine; Liquid make-up machine is to fluid reservoir feed flow, and fluid reservoir is connected with the second carrier pipe by filter by the first carrier pipe, and the second carrier pipe is connected to one group of joint, each joint is equipped with disinfection cap; After outlet termination air inlet pipe of second carrier pipe, then the 7th valve is housed, last and fluid reservoir is connected, and air inlet pipe is connected with air compressor machine.The present invention can ensure the total enclosing of whole liquid-supplying system running, effectively prevent extraneous pollution, also can carry out sterilizing without blind spot simultaneously, and noresidue after sterilization, and concentrated solution that is aseptic, ultrapure, normal concentration can be gone out, so just by the concentrated solution of this liquid-supplying system to dialysis machine delivery safety at use extemporaneous preparation.
Description
Technical field
The invention belongs to hemodialysis field, specifically, particularly relate to a kind of central liquid supply system of hemodialysis concentrated liquor.
Background technology
As everyone knows, haemodialysis control unit has the parts such as dosing pump, conductometric detector, hemodialysis concentrated solution (being rich in the isoionic high concentration liquid of K, NA) need be sucked during its work, suck the pure water of respective component simultaneously, to make the dialysis solution identical with human body K, NA ion concentration, and then to carry out hemodialysis.
In the past, generally first in a uncovered dosing bucket, added the dialysis powder being rich in K, NA at use scene, then added the pure water of respective component, and adopt pure manual mode to stir, thus made the hemodialysis concentrated solution of desired concn.Due to the open topped of dosing bucket, antibacterials in such air etc. just very easily enter in dosing bucket, thus pollute the concentrated solution prepared, and the concentrated solution after contaminated is once enter human body, great injury will be caused to health, thus cause serious medical safe accident.Further, the bad control of the concentration of concentrated solution.In addition, because whole process all adopts pure manual operations, the labor intensity of operator will be made so very large, inefficiency.Afterwards, have people to be provided with blender in the bottom of dosing bucket, the top of this dosing bucket is still uncovered.After adopting this structure, by blender, powder and pure water can be stirred, although significantly reduce the labor intensity of operator like this, because dosing bucket is not still hermetic container, or the contaminated disadvantage of hemodialysis concentrated solution cannot be overcome, and the concentration of concentrated solution still bad control.
Chinese patent 201010524202.8 discloses a kind of liquor preparing machine, the frame of this liquid make-up machine is arranged the dosing bucket that top is closed, this dosing bucket top has charging aperture, seal cover is arranged on charging aperture top, on dosing bucket side, filler pipe is set, this filler pipe communicates with dosing bucket inside, and the first valve of connecting on filler pipe; Have apopore in described dosing bottom of the barrel, the dosing bottom of the barrel of these apopore both sides respectively has at least one backwater hole; Frame below described dosing bucket arranges water pump, this water pump is by driven by motor, and the water inlet of water pump is communicated with described dosing bucket apopore through outlet pipe, the outlet of water pump connects with tee T water inlet, an outlet of tee T is connected to return pipe, the number of this return pipe is consistent with dosing bucket backwater hole, and every root return pipe is communicated with corresponding backwater hole respectively, another outlet of tee T is connected to finished fluid outlet tube and disinfectant solution discharge pipe, wherein on disinfectant solution discharge pipe, string has the second valve, and on finished fluid outlet tube, string has valve.
Dosing function described in above-mentioned patent at the on-the-spot automatic liquid matching of use, and can avoid concentrated solution to be contaminated by bacterial well, and dosing efficiency is higher; But, because the error of metrical instrument is with the foozle of, non-normal working and dosing bucket, usually causes the actual addition of dialysis powder or water inaccurate, the concentrated solution concentration allotted will be caused like this to be not too accurate.The concentrated solution that liquid make-up machine described in above-mentioned patent is allotted still needs to install with a keg, uses before delivering to hemo system.In hemodialysis treatment process, concentrated solution is open in air, also can bring many pollutions.The safe disinfection of keg is also a large problem.This is almost unacceptable medical field, because it exists very large medical-risk.In addition, also have now the dialysis solution prepared in advance in factory, it is contained in inside a packing bag for medical use, although this dialysis solution is easy to use, cost is high, and the shelf-life is short, grown memory time and still there is the probability be contaminated by bacterial, cost is higher simultaneously, and many patients can not accept.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hemodialysis concentrated solution central liquid supply system, for using scene by the dialysis solution concentrated solution of this system to dialysis machine delivery safety.
Technical scheme of the present invention is as follows: a kind of hemodialysis concentrated solution central liquid supply system, this system comprises liquid make-up machine (P), dosing bucket (1) in this liquid make-up machine is hermetic container, the charging aperture (1a) of dosing bucket can be closed by seal cover (2), dosing bucket (1) is connected to a water inlet pipe (3), the first valve (4) and effusion meter this filler pipe be equipped with, wherein the instantaneous delivery data feedback of effusion meter collection is to single-chip microcomputer, and by obtaining the volumetric values of water injection rate after the computing of single-chip microcomputer cumulative sum, and show on screen; Described dosing bucket (1) bottom has an apopore (1b), and the dosing bottom of the barrel of these apopore both sides has at least one backwater hole (1c);
Described apopore (1b) is by the inlet communication of outlet pipe (5) with the first water pump (6), this the first water delivery side of pump is connected on the feed liquor arm of threeway outlet pipe (7), and on the water inlet pipe of threeway outlet pipe, being connected to a return pipe (8), each exit branch of this return pipe is connected on a corresponding described backwater hole (1c) respectively; Two exit branch of described threeway outlet pipe (7) are connected to a finished fluid outlet tube (9) and disinfectant solution discharge pipe (10) respectively, the second valve (11) is equipped with wherein finished fluid outlet tube (9), the 3rd valve (12) described disinfectant solution discharge pipe (10) is equipped with, it is characterized in that: described dosing bucket (1) is connected to a disinfectant solution carrier pipe (48), this disinfectant solution carrier pipe (48) is equipped with valve (49), and the liquid feeding end of disinfectant solution carrier pipe (48) is connected with delivery pump (50); Described dosing bucket (1) is built with conductivity meter, and one group of mounting groove is offered along short transverse on dosing bucket (1) inwall, a ball float (13) is housed in each mounting groove, and dosing bucket (1) inwall is carved with corresponding volumetric values bottom corresponding each ball float, and the step that employing ball float (13) carrys out actual water injection rate in subsidiary dosing bucket (1) is as follows:
Step 1, starts effusion meter while opening described first valve (4);
Step 2, described screen shows the water injection rate of the water injection rate injection of injecting in dosing bucket (1) in real time, when the water in dosing bucket (1) triggers one ball float (13) of corresponding height, come to calibrate the show value of screen according to the volumetric values that triggered ball float (13) represents;
Step 3, after each calibration, continued to dosing bucket (1) interior water filling by water inlet pipe (3), before the ball float (13) of next one height is triggered, the show value of described screen is exactly the actual water injection rate injected in dosing bucket (1);
Described finished fluid outlet tube (9) is to airtight fluid reservoir (14) feed flow, a liquid outlet (14a) is had bottom fluid reservoir, at least one hole for back flow (14b) is respectively had bottom the fluid reservoir of these liquid outlet both sides, wherein liquid outlet (14a) is connected by the import of drain pipe (15) with the second water pump (16), and this second water delivery side of pump connects with the feed liquor arm of threeway drain pipe (17); The 4th valve (18) the feed liquor arm of described threeway drain pipe (17) is equipped with simultaneously, threeway drain pipe (17) feed liquor arm between the 4th valve and described second water pump (16) is also connected to a liquid back pipe (19), the liquid feeding end of this liquid back pipe is equipped with the 5th valve (20), and each fluid arm of liquid back pipe (19) is connected on a corresponding described hole for back flow (14b) respectively;
A fluid arm of described threeway drain pipe (17) is connected to a sewer pipe (21), and the 6th valve (22) is housed on sewer pipe, and another fluid arm of threeway drain pipe (17) being connected to first carrier pipe (23), this first carrier pipe is connected with the second carrier pipe (25) by filter (24); Described second carrier pipe (25) is connected to the joint (J) that one group of structure is identical, and each joint is equipped with a disinfection cap (G), sterilize without blind spot by disinfectant solution butt joint (J) when disinfection cap (G) is covered on joint (J) time, when disinfection cap (G) is taken off, joint (J) can be connected with dialysis machine, to dialysis machine conveying dialysis solution; After outlet termination air inlet pipe (26) of described second carrier pipe (25), 7th valve (27) is housed again, last and described fluid reservoir (14) is connected, and described air inlet pipe (26) is equipped with the 8th valve (28), and air inlet pipe is connected with air compressor machine (29) simultaneously.
For the dialysis solution concentrated solution to haemodialysis control unit delivery safety, safety is mainly reflected in the following aspects: the concentrated solution concentration that 1, liquid make-up machine is allotted is wanted accurately, and this is an important requirement; 2, the dialysis solution that not only liquid make-up machine is allotted will realize aseptic and free from admixture to greatest extent, and needs to carry out without blind spot sterilization, to ensure that the dialysis solution that liquid make-up machine is allotted is transported in dialysis machine process not contaminated to conveyance conduit, joint etc.; 3, need to discharge up hill and dale disinfectant solution residual in liquid-supplying system and waste liquid etc., namely realize noresidue.
Before dosing, inject disinfectant solution by delivery pump and disinfectant solution carrier pipe in dosing bucket, disinfectant solution flows out dosing bucket from apopore, flows to the water inlet of the first water pump; The disinfectant solution flowed out from the first pump outlet flows in dosing bucket by backwater hole, this outflow, the disinfectant solution flowing to dosing bucket form eddy current in dosing bottom of the barrel, this eddy current rotates along the whole inwall of dosing bucket, thus can sterilize without blind spot to dosing bucket inwall, discharged by disinfectant solution discharge pipe (10) with the residue in the disinfectant solution crossed and dosing bucket.Meanwhile, inject disinfectant solution by finished fluid outlet tube (9) to fluid reservoir (14), disinfectant solution flows out fluid reservoir (14) from liquid outlet, flows to the water inlet of the second water pump; The disinfectant solution flowed out from the second pump outlet flows in fluid reservoir by hole for back flow, and this outflow, the disinfectant solution flowing to fluid reservoir form eddy current bottom fluid reservoir, and this eddy current rotates along the whole inwall of fluid reservoir, thus sterilizes without blind spot to fluid reservoir inwall.Meanwhile, disinfectant solution can fill the first carrier pipe (23), filter (24), the second carrier pipe (25) and joint (J), thus carries out sterilizing without blind spot to them.And, close the 7th valve (27) and the 4th valve (18), and open the 8th valve (28) and the 6th valve (22), so just realize blowback by air compressor machine (29), thus antibacterial upper residual for filter (24) and impurity are blown off, and residue in filter (24), piping and joint and disinfectant solution are discharged by sewer pipe (21).
During dosing, dialysis powder and water are added respectively in dosing bucket (1), and mix, circulate along with the flow path of disinfectant solution in dosing bucket (1) after their mixing, so just dialysis powder and water can be mixed equably, and then allot concentrated solution, and concentrated solution is without precipitation.Fluid reservoir (14) concentrated solution be transported to by liquid make-up machine also circulates along the circulating path of disinfectant solution at fluid reservoir (14), thus can prevent concentrated solution from producing precipitation well.
It should be noted that: cmf record be instantaneous delivery, it sends the data to single-chip microcomputer, and by obtaining the volumetric values of water filling in the unit interval after the computing of single-chip microcomputer cumulative sum, and this accumulated value is presented on screen, and above-mentioned flow process and compute mode are well known to those skilled in the art, and do not repeat at this.In this central liquid supply system, due to the foozle of the error of effusion meter, non-normal working and dosing bucket (1), will cause there is error between actual water injection rate and screen display value like this, cause concentration to be forbidden, the present invention introduces ball float (13), just need to screen display value calibration once when the water in dosing bucket (1) often triggers one ball float (13) of corresponding height, and volumetric values corresponding to each ball float is done very accurate, so in fact eliminate the cumulative errors of screen display value, so just calibrated by mechanical ball float (13) accumulated value to electronic flowmeter, thus the limits of error of screen display value is fixed between the volumetric values representated by adjacent two ball floats (13), and then the error very effectively reduced between the water injection rate of screen display and actual water injection rate.Certainly, the number of ball float (13) is more, and the spacing between adjacent two ball floats is less, and its error amount is less.Further, detected the actual concentrations of concentrated solution by conductivity meter simultaneously, thus add dialysis powder or pure water by the numerical value of conductivity meter, and then be convenient to the concentrated solution as far as possible making desired concn exactly.
As one of important improvement point of the present invention, described joint contains outer tube (30), interior pipe (33) and spring (34), its middle external tube (30) is up-small and down-big two-part structure, an O RunddichtringO (31) is housed in the annular groove on its path section top, the bottom of this path section has an annular spacing groove (30a), and the bottom of outer tube (30) large footpath section is tightly connected after being enclosed within the large footpath section on connection tube (32) top, the path section of this connection tube bottom is connected on described second carrier pipe (25); Described interior pipe (33) is contained in outer tube (30) with sliding matching mode, this interior pipe top is the section of exposing, interior pipe (33) lower end closes, and on the tube wall of interior pipe, having liquid outlet (33a), the inner pipe wall below this liquid outlet is provided with an annular stop boss (33b); Described spring (34) top is managed in the blind hole of (33) bottom in inserting, this lower spring end is pressed on the annular installation base (32a) on described connection tube (32) inwall, and fits in annular stop bit boss (30b) bottom surface on described annular stop boss (33b) end face and outer tube (30) inwall;
Described disinfection cap (G) comprises sterilizing tube (35), slide plate (37), spacing little bar (39) and sealing column (41), and wherein sterilizing tube (35) upper orifice is blocked by blanking cover (36); Described slide plate (37) is L-type structure, first return spring (38) is fixed with between the vertical section (37a) of this slide plate and described sterilizing tube (35) outer wall, and the horizontal segment (37b) of slide plate (37) is positioned at below sterilizing tube (35) lower nozzle, the dual-side of this horizontal segment snaps between the Horizontal limiting flange (35a) of respective side and sterilizing tube (35) lower surface respectively, and is slidably matched with it; The horizontal segment (37b) of described slide plate (37) has the special-shaped via hole (37c) of a up/down perforation, this special-shaped via hole is made up of large rounded portions, middle curved portions and smaller part rounded portions, wherein smaller part rounded portions is connected with large rounded portions by middle curved portions, the centerline collineation of these three parts, and smaller part rounded portions and middle arc part are in the one end away from the vertical section of slide plate (37), and the large diameter of rounded portions and the external diameter of described outer tube (30) path section adapt;
Described spacing little bar (39) is four-part form multidiameter structure, be followed successively by path section, upper large footpath section, lower path section and lower large footpath section from top to bottom, wherein go up the small blind hole large footpath section and described sterilizing tube (35) bottom vertically offered to be slidably matched, and in upper path section, be set with second return spring (40), the lower end of this second return spring is against on the section end face of described large footpath, and the second return spring (40) upper end is against at the bottom of the hole of described small blind hole; Described spacing little bar (39) bottom is inserted in special-shaped via hole (37c), the lower path section of this spacing little bar and the smaller part rounded portions snap-fit engagement of special-shaped via hole (37c); Described sealing column (41) is moving member, and is contained in sterilizing tube (35), is set with the 3rd return spring (42) outside sealing column; Described 3rd return spring (42) lower end is pressed on the flanging of sealing column (41) bottom, 3rd return spring upper end is pressed on positive stop lug boss (35b) bottom surface of annular on described sterilizing tube (35) inwall, fits in stop bit boss (37a) bottom surface of the end face of this positive stop lug boss and sealing column (41) upper end annular;
When described disinfection cap (G) is covered on joint (J) time, the large rounded portions of described special-shaped via hole (37c) and annular spacing groove (30a) snap-fit engagement, the middle curved portions of this special-shaped via hole and the lower large footpath section snap-fit engagement of described spacing little bar (39), the step surface of bottom surface simultaneously and between the section of described outer tube (30) large and small footpath of this lower large footpath section is fitted; Simultaneously, described interior pipe (33) and sealing column (41) are withstood mutually, thus described annular stop boss (33b) and annular stop bit boss (30b) are disengaged, and positive stop lug boss (35b) and stop bit boss (37a) disengage, at this moment disinfectant solution not only can the inwall of connection tube (32), outer tube (30), interior pipe (33) and sterilizing tube (35) described in submergence, and can simultaneously by outer tube (30) the outer wall submergence of the outer wall of interior pipe (33) and described O RunddichtringO (31) top.
When described disinfection cap is covered on joint time, the large rounded portions of described special-shaped via hole and annular spacing groove snap-fit engagement, the middle curved portions of this special-shaped via hole and the lower large footpath section snap-fit engagement of described spacing little bar, the step surface of this section bottom surface, lower large footpath simultaneously and between outer tube large footpath section and path section is fitted.Meanwhile, described interior pipe and sealing column are withstood mutually, thus make described spring and the 3rd return spring all be in compressive state, and at this moment annular stop boss and annular stop bit boss disengage, and positive stop lug boss and stop bit boss disengage.
If now inject disinfectant solution by the second connection tube in described connection tube, after this disinfectant solution fills the inner chamber of connection tube, can flow in outer tube, and in described liquid outlet flows in pipe, and then in inflow sterilizing tube, at this moment disinfectant solution not only can submergence connection tube, outer tube, the inwall of interior pipe and sterilizing tube, and can simultaneously by the outer tube outer wall submergence above the outer wall of interior pipe and described O RunddichtringO, thus pass through the inwall of disinfectant solution butt joint simultaneously all parts, outer tube outer wall sterilization above the outer wall of interior pipe and O RunddichtringO, and then reliably butt joint carries out disinfection, so just can realize automatically, without the sterilization of blind spot ground.Meanwhile, described disinfection cap can also play certain protection and fungi-proofing effect, disinfection cap is taken off when needs use during joint.
Certainly, in concrete manufacture process, meeting under the functional requirement prerequisite that butt joint sterilizes without blind spot, joint and the disinfection cap of other versions can also be adopted according to practical situation, be not limited only to the concrete structure described in the present embodiment.
As one embodiment of the present of invention, step 2-1, by screen display water injection rate;
Step 2-2, when water triggers ball float (13) corresponding to 50L, is calibrated to 50L by the show value of screen;
Step 2-3, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-4, when water triggers ball float (13) corresponding to 100L, is calibrated to 100L by the show value of screen;
Step 2-5, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-6, when water triggers ball float (13) corresponding to 150L, is calibrated to 150L by the show value of screen;
Step 2-7, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-8, when water triggers ball float (13) corresponding to 200L, is calibrated to 200L by the show value of screen.
As preferably, described seal cover (2) is connected to a feed pipe (43), this feed pipe is connected with storage vat (45) by pump (44), and storage vat (45) can by weighing.
Adopt above structure, the present invention can adopt automated manner charging, and need not adopt manual type charging, so just can avoid polluting dialysis powder, and when adding powder, open bung, the contact of bucket and outside air, accomplish thoroughly airtight, without any points of contamination, and then to prevent the concentrated solution allotted contaminated from source, and the weight of charging can by claiming accurately to control, control mode is simple and convenient.
As optimal design, described filter (24) is tertiary filter, and the filtering holes diameter of its filter element reduces from liquid feeding end successively to liquid outlet, and is respectively 5 microns, 1 micron and 0.22 micron.
Adopt above structural design, described filter can impurity very effectively in filtering and concentrating liquid and antibacterial, thus make the concentrated solution being transported to joint (J) place purer, the impurity that basic removal the inside is contained and antibacterial, and filter adopts existing filter element on market to assemble, structure is simple, easily manufactured, with low cost.
As optimal design, described dosing bucket (1) is drum, described apopore (1b) is offered in the center of this dosing bucket, a described backwater hole (1c) is respectively offered in the both sides of apopore, and the line of centres of these two backwater holes and described apopore (1b) point-blank.Accordingly, the exit branch of described return pipe (8) is two.
Described fluid reservoir (14) is cylindrical structure, described liquid outlet (14a) is offered in the center of this dosing bucket, a described hole for back flow (14b) is respectively offered in the both sides of liquid outlet, and these two hole for back flow are connected point-blank with the center of described liquid outlet (14a).Accordingly, the exit branch of described liquid back pipe (19) is two.
Because dosing bucket is drum, the resistance that disinfectant solution is rotated along dosing bucket inwall is less, and the number of backwater hole and Position Design uniqueness, the resistance that disinfectant solution rotates can be reduced further, thus reduce the power consumption of the first water pump.Because fluid reservoir is drum, the resistance that disinfectant solution is rotated along fluid reservoir inwall is less, and the number of hole for back flow and Position Design uniqueness, the resistance that disinfectant solution rotates can be reduced further, thus reduce the power consumption of the second water pump.
In the present case, the inwall at described dosing bucket (1) top vertically arranges uviol lamp (46), the lower end of this uviol lamp near dosing bucket (1) bottom, and is provided with resistance heater (47) in the lower horizontal of dosing bucket (1) medial wall.
Adopt above structure, the setting of described uviol lamp (46) is to strengthen bactericidal effect, and in order to accelerate the mixing velocity of dialysis powder and pure water, improves dosing efficiency, spy arranges resistance heater in the lower horizontal of described dosing bucket medial wall, so just can realize efficient dosing.
As preferably, the outer wall of described connection tube (32) path section is provided with vertically the back taper boss (32b) of annular, facilitate like this and be connected with described second carrier pipe (25), and back taper boss can effective increasing friction force, it is firm to be conducive to installing.
Beneficial effect: the present invention can carry out sterilizing without blind spot to whole liquid-supplying system, and noresidue after sterilization, total enclosing can prevent extraneous pollution, and concentrated solution that is aseptic, ultrapure, normal concentration can be gone out at use extemporaneous preparation, so just by the concentrated solution of this liquid-supplying system to dialysis machine delivery safety, thus solve the defect of prior art well, reduce the use cost of hospital, and the present invention is safe and reliable, integrated level is high, automaticity is high, easy to use, improve the work efficiency of medical personnel.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the part-structure figure of liquid make-up machine in Fig. 1;
Fig. 3 is the sectional view of fluid reservoir in Fig. 1;
Fig. 4 is the schematic diagram of Fig. 1 center tap;
Fig. 5 is the structural representation of slide plate in Fig. 4;
Fig. 6 is the flow chart that the present invention adopts actual water injection rate in ball float subsidiary dosing bucket.
The label that in the present invention, all parts title is corresponding in above accompanying drawing is as follows:
Dosing bucket-1, seal cover-2, water inlet pipe-3, the first valve-4, outlet pipe-5, the first water pump-6, threeway outlet pipe-7, return pipe-8, finished fluid outlet tube-9, disinfectant solution discharge pipe-10,
Second valve-11, 3rd valve-12, ball float-13, fluid reservoir-14, drain pipe-15, second water pump-16, threeway drain pipe-17, 4th valve-18, liquid back pipe-19, 5th valve-20, sewer pipe-21, 6th valve-22, first carrier pipe-23, filter-24, second carrier pipe-25, air inlet pipe-26, 7th valve-27, 8th valve-28, air compressor machine-29, outer tube-30, O RunddichtringO-31, connection tube-32, interior pipe-33, spring-34, sterilizing tube-35, blanking cover-36, slide plate-37, first return spring-38, spacing little bar-39, second return spring-40, sealing column-41, 3rd return spring-42, feed pipe-43, pump-44, storage vat-45, uviol lamp-46, resistance heater-47, disinfectant solution carrier pipe-48, valve-49 and delivery pump-50
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Fig. 1 to 5, a kind of hemodialysis concentrated solution central liquid supply system, this central liquid supply system primarily of liquid make-up machine P, fluid reservoir 14, joint J, disinfection cap G and some rise interconnect function piping form.Wherein, the Chinese invention patent that the basic structure of liquid make-up machine P is applied for before adopting the applicant, its patent No. is 201010524202.8, and the liquid make-up machine P adopted in this case is further improved again in patented technology before.
Form primarily of dosing bucket 1, seal cover 2, first valve 4, water pipe 5, first water pump 6, threeway outlet pipe 7, return pipe 8, finished fluid outlet tube 9, disinfectant solution discharge pipe 10, second valve 11, the 3rd valve 12, ball float 13, feed pipe 43, pump 44 and storage vat 45 with reference to Fig. 1,2, above-mentioned liquid make-up machine P.Wherein, dosing bucket 1 is cylinder, and is hermetic container, and this dosing bucket 1 can be supported on a frame (not shown in FIG.).Have a charging aperture 1a at the top of dosing bucket 1, this charging aperture 1a can be closed by seal cover 2.In the present case, seal cover 2 also add a feed pipe 43, this feed pipe 43 is connected with storage vat 45 by pump 44, and storage vat 45 is for storing dialysis powder, and storage vat 45 can by weighing.Before dosing, first in storage vat 45, add dialysis powder, during dosing, in dosing bucket 1, carry dialysis powder by pump 44 and feed pipe 43, and the dialysis powder weight of conveying can by weighing.
Dosing bucket 1 is connected to a water inlet pipe 3, this filler pipe is equipped with the first valve 4 and effusion meter (not shown in FIG.), wherein the first valve 4 is for controlling the opening and closing of filler pipe, and effusion meter for measure filler pipe flow.Wherein, the instantaneous delivery data feedback that effusion meter gathers is to single-chip microcomputer, and by obtaining the volumetric values of water injection rate after the computing of single-chip microcomputer cumulative sum, and show on screen, above-mentioned flow process and compute mode etc. are well known to those skilled in the art.Described dosing bucket 1 is built with conductivity meter, and conductivity meter is the concentration for detecting concentrated solution, and the installation method of conductivity meter and using method are well known to those skilled in the art.
Meanwhile, dosing bucket 1 inwall offers one group of mounting groove along short transverse, a ball float 13 is housed in each mounting groove, and position on dosing bucket 1 inwall bottom corresponding each ball float 13 is corresponding is provided with scale value.With reference to Fig. 6, the step that employing ball float 13 carrys out actual water injection rate in subsidiary dosing bucket 1 is as follows: step 1, starts effusion meter, effusion meter is started working while opening described first valve 4;
Step 2, described screen shows the water injection rate of the water injection rate injection of injecting in dosing bucket 1 in real time, when the water in dosing bucket 1 triggers a ball float 13 of corresponding height, comes to calibrate the show value of screen according to the volumetric values that triggered ball float 13 represents;
Step 3, after each calibration, continues water filling in dosing bucket 1 by water inlet pipe 3, and before the ball float 13 of next one height is triggered, the show value of described screen is exactly the actual water injection rate injected in dosing bucket 1.It should be noted that, it is known in those skilled in the art for how carrying out calibration to the show value of screen, does not repeat at this.
As one embodiment of the present of invention, the number of described ball float 13 is 4, and this scale value corresponding to 4 ball floats 13 is followed successively by 50L, 100L, 150L and 200L.Correspondingly, the concrete steps of described step 2 are as follows: step 2-1, the water injection rate injected in dosing bucket 1 by screen display;
Step 2-2, when water triggers the ball float 13 corresponding to 50L, is calibrated to 50L by the show value of screen; Step 2-3, continues water filling in dosing bucket 1, the water injection rate injected in dosing bucket 1 by screen display; Step 2-4, when water triggers the ball float 13 corresponding to 100L, is calibrated to 100L by the show value of screen; Step 2-5, continues water filling in dosing bucket 1, the water injection rate injected in dosing bucket 1 by screen display; Step 2-6, when water triggers the ball float 13 corresponding to 150L, is calibrated to 150L by the show value of screen; Step 2-7, continues water filling in dosing bucket 1, the water injection rate injected in dosing bucket 1 by screen display; Step 2-8, when water triggers the ball float 13 corresponding to 200L, is calibrated to 200L by the show value of screen.In figure 6, described dynamic flow is meant to the volume of water increased, and all described water injection rate representatives is the total measurement (volume) of water in dosing bucket 1.
In addition, the inwall at described dosing bucket 1 top vertically arranges a uviol lamp 46, the lower end of this uviol lamp bottom dosing bucket 1, and is provided with resistance heater 47 in the lower horizontal of dosing bucket 1 medial wall.Described dosing bucket 1 is connected to a disinfectant solution carrier pipe 48, this disinfectant solution carrier pipe 48 is equipped with a valve 49, and the liquid feeding end of disinfectant solution carrier pipe 48 is connected with delivery pump 50;
Comparison diagram 1,2 can be found out, has an apopore 1b bottom described dosing bucket 1, and the dosing bottom of the barrel of this apopore 1b both sides has at least one backwater hole 1c.In the present case, described apopore 1b is offered in the center of dosing bucket 1, and a described backwater hole 1c is respectively offered in the both sides of apopore 1b, and the line of centres of these two backwater holes and described apopore 1b point-blank.Certainly, in reality manufactures, the relative position relation of the concrete number of backwater hole 1c and they and apopore 1b also can be selected as required.
Described apopore 1b passes through the inlet communication of outlet pipe 5 and the first water pump 6, the outlet of this first water pump 6 is connected on the feed liquor arm of threeway outlet pipe 7, and on the water inlet pipe of threeway outlet pipe 7, being connected to a return pipe 8, each exit branch of this return pipe 8 is connected on a corresponding described backwater hole 1c respectively.Because in this case, the number of apopore 1b is two, so return pipe 8 is correspondingly a tee T.Two exit branch of described threeway outlet pipe 7 are connected to a finished fluid outlet tube 9 and disinfectant solution discharge pipe 10 respectively, the second valve 11 finished fluid outlet tube 9 is equipped with wherein, described disinfectant solution discharge pipe 10 is equipped with the 3rd valve 12, this disinfectant solution discharge pipe is for discharging disinfectant solution, discarded concentrated solution and residue.
Can find out with reference to Fig. 1 and 3, described finished fluid outlet tube 9, to airtight fluid reservoir 14 feed flow, has a liquid outlet 14a, respectively has at least one hole for back flow 14b bottom the fluid reservoir of this liquid outlet 14a both sides in the bottom of fluid reservoir 14.In the present case, described fluid reservoir 14 is cylindrical structure, described liquid outlet 14a is offered in the center of this dosing bucket 14, and a described hole for back flow 14b is respectively offered in the both sides of liquid outlet 14a, and these two hole for back flow are connected point-blank with the center of described liquid outlet 14a.Certainly, in reality manufactures, the relative position relation of the concrete number of hole for back flow 14b and they and liquid outlet 14a also can be selected as required.
Described liquid outlet 14a is connected by the import of a drain pipe 15 with the second water pump 16, and the outlet of this second water pump 16 connects with the feed liquor arm of threeway drain pipe 17.The 4th valve 18 the feed liquor arm of described threeway drain pipe 17 is equipped with simultaneously, threeway drain pipe 17 feed liquor arm between the 4th valve 18 and described second water pump 16 is also connected to a liquid back pipe 19, the liquid feeding end of this liquid back pipe 19 is equipped with the 5th valve 20, and each fluid arm of liquid back pipe 19 is connected on a corresponding described hole for back flow 14b respectively.Because in this case, the number of hole for back flow 14b is two, so liquid back pipe 19 is correspondingly tee T.
It can also be seen that with reference to Fig. 1 and 3, a fluid arm of described threeway drain pipe 17 is connected to a sewer pipe 21, and the 6th valve 22 is housed on sewer pipe, sewer pipe 21 is for discharging disinfectant solution and residual concentrated solution and residue.Meanwhile, another fluid arm of described threeway drain pipe 17 is connected to first carrier pipe 23, this first carrier pipe 23 is connected with the second carrier pipe 25 by filter 24.In the present invention, described filter 24 adopts the assembling parts of outsourcing to form, its structure is also similar with common structure, just filter 24 is tertiary filter, the filtering holes diameter of this filter 24 filter element reduces from liquid feeding end successively to liquid outlet, and be respectively 5 microns, 1 micron and 0.02 micron, so just very effectively can filter out the impurity in concentrated solution and antibacterial, thus ensure the concentrated solution safety transferring to dialysis machine further.
Described second carrier pipe 25 is connected to the identical joint J of one group of structure, and each joint J is equipped with the identical disinfection cap G of a structure.Sterilize without blind spot by disinfectant solution butt joint J when disinfection cap G covers on joint J time, when disinfection cap G takes off, joint J can be connected with dialysis machine (attached not shown in FIG.), to dialysis machine conveying dialysis solution.In concrete use procedure, the number of described joint J can have a lot, such as 3,5,10,15 or 50, so that simultaneously to multiple dialysis machines conveying dialysis solution.
In addition, after outlet termination air inlet pipe 26 of described second carrier pipe 25, then the 7th valve 27 is housed, last and described fluid reservoir 14 is connected, and described air inlet pipe 26 is equipped with the 8th valve 28, and air inlet pipe is connected with air compressor machine 29 simultaneously.
It is important to note that in the present invention, all valves all adopt electromagnetic valve, facilitate the open and close of by-pass valve control like this.Meanwhile, all water pumps, pump and delivery pump are respectively by the driven by motor of correspondence.
Can find out referring to Fig. 1,4 and 5, described joint is formed primarily of outer tube 30, O RunddichtringO 31, connection tube 32, interior pipe 33 and spring 34.Wherein, outer tube 30 is up-small and down-big two-part structure, and the top of this outer tube 30 path section circumferentially has an annular groove, and an O RunddichtringO 31 is housed in this annular groove, and the bottom of outer tube 30 path section has an annular spacing groove 30a.Meanwhile, be tightly connected after the bottom of outer tube 30 large footpath section is enclosed within the large footpath section on connection tube 32 top, thus these two parts are fixed together.Further, the outer wall of connection tube 32 path section is provided with the back taper boss 32b of a few ring shape vertically, the effect of this back taper boss 32b is increasing friction force, and the path section of connection tube 32 bottom is connected on described second carrier pipe 25.
Described interior pipe 33 is contained in outer tube 30 with sliding matching mode, the top of this interior pipe 33 is the section of exposing, the lower end of interior pipe 33 closes, and has liquid outlet 33a on the tube wall of interior pipe 33, and interior pipe 33 tube wall below this liquid outlet 33a is provided with an annular stop boss 33b.
Described spring 34 top insert in pipe 33 bottom blind hole in, this spring 34 lower end is pressed on the annular installation base 32a on described connection tube 32 inwall, and fits in the annular stop bit boss 30b bottom surface on described annular stop boss 33b end face and outer tube 30 inwall.When annular stop boss 33b fits with annular stop bit boss 30b under the effect of spring 34, liquid can not pass through from here.
Can find out referring to Fig. 1,4,5, described disinfection cap G is formed primarily of sterilizing tube 35, blanking cover 36, slide plate 37, first return spring 38, spacing little bar 39, second return spring 40, sealing column 41 and the 3rd return spring 42.Wherein, the upper orifice of sterilizing tube 35 is blocked by blanking cover 36, and this blanking cover 36 is connected with sterilizing tube 35 by the mode be threaded.Described slide plate 37 is L-type structure, is fixed with first return spring 38 between the vertical section 37a of this slide plate 37 and described sterilizing tube 35 outer wall, and the effect of this first return spring 38 by elastic force, slide plate 37 is resetted.
The horizontal segment 37b of described slide plate 37 is positioned at the below of sterilizing tube 35 lower nozzle, the dual-side of this horizontal segment 37b snaps between the Horizontal limiting flange 35a of respective side and sterilizing tube 35 lower surface respectively, so just makes horizontal segment 37b and two Horizontal limiting flange 35a be slidably matched.The horizontal segment 37b of described slide plate 37 has the special-shaped via hole 37c of a up/down perforation, this special-shaped via hole 37c is Pear-Shaped structure, and be made up of large rounded portions, middle curved portions and smaller part rounded portions, wherein smaller part rounded portions is connected with large rounded portions by middle curved portions, the centerline collineation of these three parts, and smaller part rounded portions and middle arc part are in the one end away from the vertical section of slide plate 37, and the large diameter of rounded portions and the external diameter of described outer tube 30 path section adapt.
It can also be seen that referring to Fig. 1,4,5, described spacing little bar 39 is four-part form multidiameter structure, be followed successively by path section, upper large footpath section, lower path section and lower large footpath section from top to bottom, the small blind hole that wherein the upper large footpath section of spacing little bar 39 and described sterilizing tube 35 bottom are vertically offered is slidably matched.The upper path section of spacing little bar 39 is set with second return spring 40, and the lower end of this second return spring 40 is against on the section end face of described large footpath, and the second return spring 40 upper end is against at the bottom of the hole of described small blind hole.Described spacing little bar 39 bottom is inserted in special-shaped via hole 37c, the lower path section of this spacing little bar 39 and the smaller part rounded portions snap-fit engagement of special-shaped via hole 37c.
Described sealing column 41 is moving member, and is contained in sterilizing tube 35, is set with the 3rd return spring 42 outside sealing column 41.Described 3rd return spring 42 lower end is pressed on the flanging of sealing column 41 bottom, 3rd return spring 42 upper end is pressed on the positive stop lug boss 35b bottom surface of annular, this positive stop lug boss 35b opens on the inwall of described sterilizing tube 35, and the end face of this positive stop lug boss 35b is fitted with the stop bit boss 37a bottom surface of annular, this stop bit boss 37a is located at the upper end of sealing column 41.When positive stop lug boss 35b fits with stop bit boss 37a under the effect of the 3rd return spring 42, liquid can not pass through from here.
As can be seen from Fig. 4,5 finally, when disinfection cap G does not cover on joint J, liquid can not flow to interior pipe 33 in connection tube 32, and the smaller part rounded portions snap-fit engagement of spacing little bar 39 times path sections in disinfection cap G and special-shaped via hole 37c.
When described disinfection cap G covers on joint J, the large rounded portions of described special-shaped via hole 37c and annular spacing groove 30a snap-fit engagement, the middle curved portions of this special-shaped via hole 37c and the lower large footpath section snap-fit engagement of described spacing little bar 39, the step surface of bottom surface simultaneously and between the section of described outer tube 30 large and small footpath of this lower large footpath section is fitted.Simultaneously, described interior pipe 33 and sealing column 41 are withstood mutually, thus described annular stop boss 33b and annular stop bit boss 30b is disengaged, and positive stop lug boss 35b and stop bit boss 37a disengages, at this moment disinfectant solution not only can the inwall of connection tube 32, outer tube 30, interior pipe 33 and sterilizing tube 35 described in submergence, and can simultaneously by the outer tube 30 outer wall submergence above the outer wall of interior pipe 33 and described O RunddichtringO 31, so that each parts need the position contacting dialysis solution to carry out sterilizing without blind spot in butt joint J.
After disinfection cap G takes off, during joint on joint J and dialysis machine, the joint on dialysis machine is substantially identical with the disinfection cap G structure in the present invention, just eliminates blanking cover 36, so just the concentrated solution in the second carrier pipe can be transported to dialysis machine by joint J.
Finally, referring to figs. 1 through 5, the operation principle of this dialysis concentrated solution central liquid supply system is as follows:
During sterilization, inject disinfectant solution by delivery pump 50, valve 49 and disinfectant solution carrier pipe 48 in dosing bucket 1, this disinfectant solution flows out dosing bucket 1 from apopore, is flowed to the water inlet of the first water pump 6 by outlet pipe 5; The disinfectant solution flowed out from the first water pump 6 outlet flows in dosing bucket 1 by backwater hole, this outflow, the disinfectant solution flowing to dosing bucket 1 form eddy current bottom dosing bucket 1, this eddy current rotates along the whole inwall of dosing bucket 1, thus can carry out without blind spot sterilization dosing bucket 1 inwall, the residue in used disinfectant solution and dosing bucket 1 is discharged from disinfectant solution discharge pipe 10 when the 3rd valve 12 is opened.Meanwhile, a part of disinfectant solution flowed out in dosing bucket 1 can inject fluid reservoir 14 along the second valve 11 and finished fluid outlet tube 9, and disinfectant solution flows out fluid reservoir 14 from liquid outlet, flows to the water inlet of the second water pump 16; The disinfectant solution flowed out from the second water pump 16 outlet flows in fluid reservoir 14 by liquid back pipe 19, the 5th valve 20 and hole for back flow, this outflow, the disinfectant solution flowing to fluid reservoir 14 form eddy current bottom fluid reservoir, this eddy current rotates along the whole inwall of fluid reservoir 14, thus sterilizes without blind spot to fluid reservoir 14 inwall.Meanwhile, the disinfectant solution flowed out in fluid reservoir 14 also flows along the 4th valve 18, first carrier pipe 23, filter 24, second carrier pipe 25, joint J, the 7th valve 27, finally get back in fluid reservoir 14, can carry out sterilizing without blind spot to these parts so again.And, close the 7th valve 27 and the 4th valve 18, and open the 8th valve 28 and the 6th valve 22, so just realize blowback by air compressor machine 29, thus antibacterial residual on filter 24 and impurity are blown off, and residue in filter 24, piping and joint and disinfectant solution are discharged by sewer pipe 21.
When sterilization, described disinfection cap G needs to cover on joint J, at this moment the large rounded portions of described special-shaped via hole 37c and annular spacing groove 30a snap-fit engagement, the middle curved portions of this special-shaped via hole 37c and the lower large footpath section snap-fit engagement of described spacing little bar 39, the step surface of bottom surface simultaneously and between the section of described outer tube 30 large and small footpath of this lower large footpath section is fitted.Simultaneously, described interior pipe 33 and sealing column 41 are withstood mutually, thus described annular stop boss 33b and annular stop bit boss 30b is disengaged, and positive stop lug boss 35b and stop bit boss 37a disengages, at this moment disinfectant solution not only can the inwall of connection tube 32, outer tube 30, interior pipe 33 and sterilizing tube 35 described in submergence, and can simultaneously by the outer tube 30 outer wall submergence above the outer wall of interior pipe 33 and described O RunddichtringO 31, so that each parts need the position contacting dialysis solution to carry out sterilizing without blind spot in butt joint J.
During dosing, dialysis powder and water are added in dosing bucket 1 respectively, and mixes, circulate along with the flow path of disinfectant solution in dosing bucket 1 after their mixing, so just dialysis powder and water can be mixed equably, and then allot concentrated solution, and concentrated solution is without precipitation.The concentrated solution that liquid make-up machine P allots is transported to fluid reservoir 14 from finished fluid outlet tube 9 and the second valve 11, and can circulate along the circulating path of disinfectant solution at fluid reservoir 14 place, so just can prevent precipitation.Meanwhile, concentrated solution flows along the first carrier pipe 23, filter 24, second carrier pipe 25 and the 7th valve 27, and flows back in fluid reservoir 14.
When joint J connects with the joint on dialysis machine, the connector channel on the dialysis machine of joint J is all opened, and at this moment joint J just gets liquid from the second carrier pipe 25, so just passes through this central liquid supply system to the dialysis concentrated solution of dialysis machine delivery safety.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a hemodialysis concentrated solution central liquid supply system, this system comprises liquid make-up machine (P), dosing bucket (1) in this liquid make-up machine is hermetic container, the charging aperture (1a) of dosing bucket can be closed by seal cover (2), dosing bucket (1) is connected to a water inlet pipe (3), the first valve (4) and effusion meter this water inlet pipe be equipped with, wherein the instantaneous delivery data feedback of effusion meter collection is to single-chip microcomputer, and by obtaining the volumetric values of water injection rate after the computing of single-chip microcomputer cumulative sum, and show on screen; Described dosing bucket (1) bottom has an apopore (1b), and the dosing bottom of the barrel of these apopore both sides has at least one backwater hole (1c);
Described apopore (1b) is by the inlet communication of outlet pipe (5) with the first water pump (6), this the first water delivery side of pump is connected on the feed liquor arm of threeway outlet pipe (7), and on the water inlet pipe of threeway outlet pipe, being connected to a return pipe (8), each exit branch of this return pipe is connected on a corresponding described backwater hole (1c) respectively; Two exit branch of described threeway outlet pipe (7) are connected to a finished fluid outlet tube (9) and disinfectant solution discharge pipe (10) respectively, the second valve (11) is equipped with wherein finished fluid outlet tube (9), the 3rd valve (12) described disinfectant solution discharge pipe (10) is equipped with, it is characterized in that: described dosing bucket (1) is connected to a disinfectant solution carrier pipe (48), this disinfectant solution carrier pipe (48) is equipped with valve (49), and the liquid feeding end of disinfectant solution carrier pipe (48) is connected with delivery pump (50); Described dosing bucket (1) is built with conductivity meter, and one group of mounting groove is offered along short transverse on dosing bucket (1) inwall, a ball float (13) is housed in each mounting groove, and dosing bucket (1) inwall is carved with corresponding volumetric values bottom corresponding each ball float, and the step that employing ball float (13) carrys out actual water injection rate in subsidiary dosing bucket (1) is as follows:
Step 1, starts effusion meter while opening described first valve (4);
Step 2, described screen shows the water injection rate injected in dosing bucket (1) in real time, when the water in dosing bucket (1) triggers one ball float (13) of corresponding height, come to calibrate the show value of screen according to the volumetric values that triggered ball float (13) represents;
Step 3, after each calibration, continued to dosing bucket (1) interior water filling by water inlet pipe (3), before the ball float (13) of next one height is triggered, the show value of described screen is exactly the actual water injection rate injected in dosing bucket (1);
Described finished fluid outlet tube (9) is to airtight fluid reservoir (14) feed flow, a liquid outlet (14a) is had bottom fluid reservoir, at least one hole for back flow (14b) is respectively had bottom the fluid reservoir of these liquid outlet both sides, wherein liquid outlet (14a) is connected by the import of drain pipe (15) with the second water pump (16), and this second water delivery side of pump connects with the feed liquor arm of threeway drain pipe (17); The 4th valve (18) the feed liquor arm of described threeway drain pipe (17) is equipped with simultaneously, threeway drain pipe (17) feed liquor arm between the 4th valve and described second water pump (16) is also connected to a liquid back pipe (19), the liquid feeding end of this liquid back pipe is equipped with the 5th valve (20), and each fluid arm of liquid back pipe (19) is connected on a corresponding described hole for back flow (14b) respectively;
A fluid arm of described threeway drain pipe (17) is connected to a sewer pipe (21), and the 6th valve (22) is housed on sewer pipe, and another fluid arm of threeway drain pipe (17) being connected to first carrier pipe (23), this first carrier pipe is connected with the second carrier pipe (25) by filter (24); Described second carrier pipe (25) is connected to the joint (J) that one group of structure is identical, and each joint is equipped with a disinfection cap (G), sterilize without blind spot by disinfectant solution butt joint (J) when disinfection cap (G) is covered on joint (J) time, when disinfection cap (G) is taken off, joint (J) can be connected with dialysis machine, to dialysis machine conveying dialysis solution; After outlet termination air inlet pipe (26) of described second carrier pipe (25), 7th valve (27) is housed again, last and described fluid reservoir (14) is connected, and described air inlet pipe (26) is equipped with the 8th valve (28), and air inlet pipe is connected with air compressor machine (29) simultaneously.
2. hemodialysis concentrated solution central liquid supply system according to claim 1, it is characterized in that: described joint contains outer tube (30), interior pipe (33) and spring (34), its middle external tube (30) is up-small and down-big two-part structure, an O RunddichtringO (31) is housed in the annular groove on its path section top, the bottom of this path section has an annular spacing groove (30a), and the bottom of outer tube (30) large footpath section is tightly connected after being enclosed within the large footpath section on connection tube (32) top, the path section of this connection tube bottom is connected on described second carrier pipe (25), described interior pipe (33) is contained in outer tube (30) with sliding matching mode, this interior pipe top is the section of exposing, interior pipe (33) lower end closes, and on the tube wall of interior pipe, having liquid outlet (33a), the inner pipe wall below this liquid outlet is provided with an annular stop boss (33b), described spring (34) top is managed in the blind hole of (33) bottom in inserting, this lower spring end is pressed on the annular installation base (32a) on described connection tube (32) inwall, and fits in annular stop bit boss (30b) bottom surface on described annular stop boss (33b) end face and outer tube (30) inwall,
Described disinfection cap (G) comprises sterilizing tube (35), slide plate (37), spacing little bar (39) and sealing column (41), and wherein sterilizing tube (35) upper orifice is blocked by blanking cover (36); Described slide plate (37) is L-type structure, first return spring (38) is fixed with between the vertical section (37a) of this slide plate and described sterilizing tube (35) outer wall, and the horizontal segment (37b) of slide plate (37) is positioned at below sterilizing tube (35) lower nozzle, the dual-side of this horizontal segment snaps between the Horizontal limiting flange (35a) of respective side and sterilizing tube (35) lower surface respectively, and is slidably matched with it; The horizontal segment (37b) of described slide plate (37) has the special-shaped via hole (37c) of a up/down perforation, this special-shaped via hole is made up of large rounded portions, middle curved portions and smaller part rounded portions, wherein smaller part rounded portions is connected with large rounded portions by middle curved portions, the centerline collineation of these three parts, and smaller part rounded portions and middle arc part are in the one end away from the vertical section of slide plate (37), and the large diameter of rounded portions and the external diameter of described outer tube (30) path section adapt;
Described spacing little bar (39) is four-part form multidiameter structure, be followed successively by path section, upper large footpath section, lower path section and lower large footpath section from top to bottom, wherein go up the small blind hole large footpath section and described sterilizing tube (35) bottom vertically offered to be slidably matched, and in upper path section, be set with second return spring (40), the lower end of this second return spring is against on the section end face of described large footpath, and the second return spring (40) upper end is against at the bottom of the hole of described small blind hole; Described spacing little bar (39) bottom is inserted in special-shaped via hole (37c), the lower path section of this spacing little bar and the smaller part rounded portions snap-fit engagement of special-shaped via hole (37c); Described sealing column (41) is moving member, and is contained in sterilizing tube (35), is set with the 3rd return spring (42) outside sealing column; Described 3rd return spring (42) lower end is pressed on the flanging of sealing column (41) bottom, 3rd return spring upper end is pressed on positive stop lug boss (35b) bottom surface of annular on described sterilizing tube (35) inwall, fits in stop bit boss (37a) bottom surface of the end face of this positive stop lug boss and sealing column (41) upper end annular;
When described disinfection cap (G) is covered on joint (J) time, the large rounded portions of described special-shaped via hole (37c) and annular spacing groove (30a) snap-fit engagement, the middle curved portions of this special-shaped via hole and the lower large footpath section snap-fit engagement of described spacing little bar (39), the step surface of bottom surface simultaneously and between the section of described outer tube (30) large and small footpath of this lower large footpath section is fitted; Simultaneously, described interior pipe (33) and sealing column (41) are withstood mutually, thus described annular stop boss (33b) and annular stop bit boss (30b) are disengaged, and positive stop lug boss (35b) and stop bit boss (37a) disengage, at this moment disinfectant solution not only can the inwall of connection tube (32), outer tube (30), interior pipe (33) and sterilizing tube (35) described in submergence, and can simultaneously by outer tube (30) the outer wall submergence of the outer wall of interior pipe (33) and described O RunddichtringO (31) top.
3. hemodialysis concentrated solution central liquid supply system according to claim 1, is characterized in that: the number of described ball float (13) is 4, and this scale value corresponding to 4 ball floats (13) is followed successively by 50L, 100L, 150L and 200L;
The concrete steps of described step 2 are as follows:
Step 2-1, by screen display water injection rate;
Step 2-2, when water triggers ball float (13) corresponding to 50L, is calibrated to 50L by the show value of screen;
Step 2-3, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-4, when water triggers ball float (13) corresponding to 100L, is calibrated to 100L by the show value of screen;
Step 2-5, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-6, when water triggers ball float (13) corresponding to 150L, is calibrated to 150L by the show value of screen;
Step 2-7, continues to dosing bucket (1) interior water filling, by screen display water injection rate;
Step 2-8, when water triggers ball float (13) corresponding to 200L, is calibrated to 200L by the show value of screen.
4. the hemodialysis concentrated solution central liquid supply system according to claim 1 or 2 or 3, it is characterized in that: described seal cover (2) is connected to a feed pipe (43), this feed pipe is connected with storage vat (45) by pump (44), and storage vat (45) can by weighing.
5. hemodialysis concentrated solution central liquid supply system according to claim 1, it is characterized in that: described filter (24) is tertiary filter, the filtering holes diameter of its filter element reduces from liquid feeding end successively to liquid outlet, and is respectively 5 microns, 1 micron and 0.22 micron.
6. hemodialysis concentrated solution central liquid supply system according to claim 1 or 5, it is characterized in that: described dosing bucket (1) is drum, described apopore (1b) is offered in the center of this dosing bucket, a described backwater hole (1c) is respectively offered in the both sides of apopore, and the line of centres of these two backwater holes and described apopore (1b) point-blank;
Described fluid reservoir (14) is cylindrical structure, described liquid outlet (14a) is offered in the center of this dosing bucket, a described hole for back flow (14b) is respectively offered in the both sides of liquid outlet, and these two hole for back flow are connected point-blank with the center of described liquid outlet (14a).
7. hemodialysis concentrated solution central liquid supply system according to claim 6, it is characterized in that: the inwall at described dosing bucket (1) top vertically arranges uviol lamp (46), the lower end of this uviol lamp near dosing bucket (1) bottom, and is provided with resistance heater (47) in the lower horizontal of dosing bucket (1) medial wall.
8. hemodialysis concentrated solution central liquid supply system according to claim 2, is characterized in that: the back taper boss (32b) outer wall of described connection tube (32) path section being provided with vertically annular.
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| WO2016171023A1 (en) | 2015-04-22 | 2016-10-27 | 日機装株式会社 | Calibration method for flowmeters in blood dialysis system |
| CN105903402A (en) * | 2016-05-26 | 2016-08-31 | 江苏通协机械设备有限公司 | Hemodialysis agent liquid preparation and centralized supply system |
| CN109276769A (en) * | 2018-12-03 | 2019-01-29 | 马德升 | A kind of liquid dispensing device that can be used for dialysing |
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| CN101351235B (en) * | 2005-12-29 | 2011-06-15 | 弗莱克斯戴尔勒斯私人有限公司 | Method and apparatus for home dialysis |
| MX2008008892A (en) * | 2006-01-30 | 2008-11-27 | Univ California | Peritoneal dialysis methods and apparatus. |
| CN101342389B (en) * | 2008-09-03 | 2010-06-02 | 荣维淳 | Full-automatic liquid preparation machine |
| CN101985053B (en) * | 2010-10-29 | 2012-08-15 | 重庆本善医疗设备有限公司 | Hemodialysis concentrated liquid preparing machine |
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