CN202161616U - System capable of independently protecting concentration and temperature of dialyzate - Google Patents
System capable of independently protecting concentration and temperature of dialyzate Download PDFInfo
- Publication number
- CN202161616U CN202161616U CN2011202184726U CN201120218472U CN202161616U CN 202161616 U CN202161616 U CN 202161616U CN 2011202184726 U CN2011202184726 U CN 2011202184726U CN 201120218472 U CN201120218472 U CN 201120218472U CN 202161616 U CN202161616 U CN 202161616U
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- electromagnetic valve
- temperature
- gauge tap
- concentration
- dialysis solution
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Abstract
The utility model discloses a system capable of independently protecting concentration and temperature of dialyzate, which comprises a first temperature electric conductance sensor, a second temperature electric conductance sensor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a protection monitor. The first temperature electric conductance sensor, the second temperature electric conductance sensor, the first electromagnetic valve and the second electromagnetic valve are successively serially connected onto a dialyzate flow-in branch, the third electromagnetic valve is serially connected between a part, which located between the second temperature electric conductance sensor and the first electromagnetic valve, of the dialyzate flow-in branch and a waste liquid output branch, and the protection monitor is used for controlling the first electromagnetic valve and the second electromagnetic valve to be closed when the temperature or the concentration of the dialyzate is abnormal and opening the third electromagnetic valve, so that the dialyzate on the dialyzate flow-in branch can directly flow into the waste liquid output branch. An independent dialyzate concentration and temperature protecting function is added to the system, and the system meets national standard GB9706.2-2003 in the dialysis industry, and has the advantages of simple structure, easiness in control and low implementation cost.
Description
Technical field
This utility model relates to a kind of guard system, especially relates to realizing the system that dialysate concentration and temperature are independently protected in a kind of hemodialysis apparatus.
Background technology
Hemodialysis apparatus comprises water treatment system, mix water for dialysis and dialysis with the mixing arrangement of concentrated solution, pass through equipment and other auxiliary facilities of artificial kidney pump dialysis solution.
Water for dialysis be ordinary tap water successively through filtration, softening, activated carbon adsorption and reverse osmosis handle the reverse osmosis water that forms.Dialysis is divided into two types of concentrated solution A and concentrated solution B with concentrated solution, and wherein, concentrated solution A contains compositions such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride and glucose; Concentrated solution B mainly is a sodium bicarbonate.Water for dialysis and dialysis solution concentrated solution are fully mixed through mixing arrangement by a certain percentage, be made into the dialysis solution of final working concentration.
Standard GB 9706.2-2003 51.101 regulations, hemodialysis apparatus must have the guard system that is independent of outside any dosing control system, because of the improper danger that produces secure context of the constituent of dialysis solution, stops dialysis fluid flow to dialyser.
Standard GB 9706.2-2003 51.102 regulations; Hemodialysis apparatus must have the guard system that is independent of outside any temperature control system; When the dialysis solution exit of equipment with (or) when the temperature that records of displacement liquid exit surpasses 41 ℃; This guard system stops dialysis fluid flow to dialyser, and stops the conversion liquid stream to advance blood.
At present, some hemodialysis apparatus adopts the technical scheme that increases a CPU and temperature conductivity sensor, realizes independently safeguard function.But this technical scheme should be considered control mode, also need consider communication modes, has the shortcoming that realizes more complicated, and realizes that cost is higher.
Summary of the invention
This utility model proposes a kind of system that realizes that dialysate concentration and temperature are independently protected, and dialysate concentration and temperature are independently monitored, and control is simple.
This utility model adopts following technical scheme to realize: a kind of system that realizes that dialysate concentration and temperature are independently protected, and it comprises: flow on the branch road at dialysis solution and be connected in series the first temperature conductivity sensor, the second temperature conductivity sensor, first electromagnetic valve and second electromagnetic valve successively; The dialysis solution that the 3rd electromagnetic valve, one of which end are connected between the second temperature conductivity sensor and first electromagnetic valve flows on the branch road, and another end is connected waste liquid output branch road; Be used for dialysate temperature and concentration information according to the detection of the first temperature conductivity sensor; When dialysate temperature or concentration are undesired; First electromagnetic valve and second electromagnetic valve are closed in control; Open the 3rd electromagnetic valve and make the dialysis solution on the dialysis solution inflow branch road flow directly into the protecting, monitoring device that waste liquid is exported branch road, it connects the first temperature conductivity sensor, first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve respectively.
In a preferred embodiment, the protecting, monitoring device comprises: be used for comprising from the first temperature conductivity sensor collection protective plate of the temperature and the conductivity data of dialysis solution, it connects the first temperature conductivity sensor; Be used to obtain the image data of protective plate, and analyze image data, or/and concentration is undesired, send the protecting, monitoring device of defense controls signal to protective plate in the temperature that monitors dialysis solution, it connects protective plate; Be connected to first gauge tap, second gauge tap and the 3rd gauge tap between the protective plate and first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve; Defense controls signal controlling first gauge tap that is sent according to the protecting, monitoring device by protective plate is closed, second gauge tap and the 3rd gauge tap all break off, and makes the electromagnetic valve and second electromagnetic valve all cuts out, the 3rd electromagnetic valve is opened of winning.
In a preferred embodiment; Said system also comprises: be used for dialysate temperature and concentration information according to the detection of the second temperature conductivity sensor; When dialysate temperature or concentration are undesired; First electromagnetic valve and second electromagnetic valve are closed in control, open the 3rd electromagnetic valve and make the dialysis solution on the dialysis solution inflow branch road flow directly into the water route control device that waste liquid is exported branch road, and it connects the second temperature conductivity sensor, first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve respectively.
In a preferred embodiment, the water route control device comprises: be used for comprising from the second temperature conductivity sensor collection collection plate of the temperature and the conductivity data of dialysis solution, it connects the second temperature conductivity sensor;
Be used to obtain the image data of collection plate, and analyze image data, or/and concentration is undesired, send the water-channel controller of control signal in the temperature that monitors dialysis solution, it connects collection plate; Be connected to first gauge tap, second gauge tap and the 3rd gauge tap between the water-channel controller and first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve; The control signal of sending according to water-channel controller controls that first gauge tap is closed, second gauge tap and the 3rd gauge tap all break off, and makes the electromagnetic valve and second electromagnetic valve all cuts out, the 3rd electromagnetic valve is opened of winning.
Wherein, the protecting, monitoring device connects the water route control device through the RS-485 interface.
Compared with prior art, the utlity model has following beneficial effect:
This utility model increase is electrical conductivity of dialysis solution (concentration of corresponding dialysis solution) and temperature safeguard function independently, meets dialysis industry standard GB 9706.2-2003, have simple in structure, control is simple and easy and realize the low advantage of cost.
Description of drawings
Fig. 1 is the structural representation of this utility model.
The specific embodiment
As shown in Figure 1; The system that realization dialysate concentration that this utility model proposes and temperature are independently protected; Comprise: the dialysis solution inflow branch road that is used for fresh dialysis solution is flowed into bloody path; On dialysis solution inflow branch road, be connected in series the first temperature conductivity sensor CT1, the second temperature conductivity sensor CT2, the first electromagnetic valve D1 and the second electromagnetic valve D2 successively, connect the input of bloody path then; The outfan that connects bloody path is used for the waste liquid output branch road that the dialysis solution (being waste liquid) after using is discharged from bloody path; Flow on the branch road, export on the branch road at the dialysis solution between the second temperature conductivity sensor CT2 and the first electromagnetic valve D1 at waste liquid; Use first, second three-way connector respectively, between first three-way connector and second three-way connector, be connected in series the 3rd electromagnetic valve D3; Connect the first temperature conductivity sensor CT1, be used for dialysate temperature and concentration information, control the protecting, monitoring device of the first electromagnetic valve D1, the second electromagnetic valve D2 and the 3rd electromagnetic valve D3 action according to first temperature conductivity sensor CT1 detection; And connect the second temperature conductivity sensor CT2, and be used for dialysate temperature and concentration information according to second temperature conductivity sensor CT2 detection, control the water route control device of the first electromagnetic valve D1, the second electromagnetic valve D2 and the 3rd electromagnetic valve D3 action; And adopt the serial communication of RS-485 between protecting, monitoring device and the water route control device.
Wherein, the protecting, monitoring device comprises: connect the protective plate of the first temperature conductivity sensor CT1, be used for comprising the temperature of dialysis solution and the data of electrical conductivity from first temperature conductivity sensor CT1 collection; The protecting, monitoring device that links to each other with protective plate; Be used to obtain the image data of protective plate, and analyze image data, the temperature of judging dialysis solution whether National standard GB 9706.2-2003 51.101 stipulate above 41 ℃; And according to the concentration of electrical conductivity Conversion Calculation dialysis solution; Whether the concentration of judging dialysis solution is in the scope of regulation, if the temperature of dialysis solution is sent the defense controls signal or/and concentration is undesired to protective plate; The first gauge tap K1, the second gauge tap K2 and the 3rd gauge tap K3 of parallel connection; These 3 gauge taps all connect protective plate; When protective plate is received the defense controls signal that the protecting, monitoring device sends; Protective plate is controlled first gauge tap K1 closure, the second gauge tap K2 and the 3rd gauge tap K3 and is all broken off; Make the electromagnetic valve D1 and the second electromagnetic valve D2 all closes, the 3rd electromagnetic valve D3 opens of winning, the dialysis solution that dialysis solution flows on the branch road flows into waste liquid output branch road through the 3rd electromagnetic valve D3, and promptly dialysis solution can't flow into bloody path.And the protecting, monitoring device is through the water route bypass of RS-485 serial line interface communication notice water route control device with dialysis solution.
The water route control device comprises: connect the collection plate of the second temperature conductivity sensor CT2, be used for comprising the temperature of dialysis solution and the data of electrical conductivity from second temperature conductivity sensor CT2 collection; The water-channel controller that links to each other with protective plate; The 4th gauge tap K4, the 5th gauge tap K5 and the 6th gauge tap K6 of parallel connection; These 3 gauge taps all connect water-channel controller; And be connected the 3rd electromagnetic valve D3 after the first gauge tap K1 and the 4th gauge tap K4 parallel connection, one of them the 3rd electromagnetic valve D3 conducting when closed of the first gauge tap K1 and the 4th gauge tap K4; Be connected the first electromagnetic valve D1 after the second gauge tap K2 and the 5th gauge tap K5 parallel connection, one of them first electromagnetic valve D1 conducting when closed of the second gauge tap K2 and the 5th gauge tap K5; Be connected the second electromagnetic valve D2 after the 3rd gauge tap K3 and the 6th gauge tap K6 parallel connection, one of them second electromagnetic valve D2 conducting when closed of the 3rd gauge tap K3 and the 6th gauge tap K6; When the data of analyzing temperature and the electrical conductivity of dialysis solution when water-channel controller exceed the regime values scope; Sending control signal all opens the 5th gauge tap K5 and the 6th gauge tap K6; The 4th gauge tap K4 is closed; The first electromagnetic valve D1 and the second electromagnetic valve D2 all close, the 3rd electromagnetic valve D3 opens thereby make, and the dialysis solution that dialysis solution flows on the branch road flows into waste liquid output branch road through the 3rd electromagnetic valve D3, and promptly dialysis solution can't flow into bloody path.
In addition; The protecting, monitoring device has higher priority level than the water route control device; When dialysate temperature that promptly detects to the first temperature conductivity sensor CT1 when the protecting, monitoring assembly monitor or concentration are undesired; At this moment, whether normal no matter the water route control device is monitored dialysate temperature or concentration that the second temperature conductivity sensor CT2 detects, all make the electromagnetic valve D1 and the second electromagnetic valve D2 all closes, the 3rd electromagnetic valve D3 opens the bypass operation of carrying out dialysis solution of winning.
The above is merely the preferred embodiment of this utility model; Not in order to restriction this utility model; Any modification of being done within all spirit and principles at this utility model, be equal to replacement and improvement etc., all should be included within the protection domain of this utility model.
Claims (5)
1. a system that realizes that dialysate concentration and temperature are independently protected is characterized in that, comprising:
On dialysis solution inflow branch road, be connected in series the first temperature conductivity sensor, the second temperature conductivity sensor, first electromagnetic valve and second electromagnetic valve successively;
The dialysis solution that the 3rd electromagnetic valve, one of which end are connected between the second temperature conductivity sensor and first electromagnetic valve flows on the branch road, and another end is connected waste liquid output branch road;
Be used for dialysate temperature and concentration information according to the detection of the first temperature conductivity sensor; When dialysate temperature or concentration are undesired; First electromagnetic valve and second electromagnetic valve are closed in control; Open the 3rd electromagnetic valve and make the dialysis solution on the dialysis solution inflow branch road flow directly into the protecting, monitoring device that waste liquid is exported branch road, it connects the first temperature conductivity sensor, first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve respectively.
2. the system that independently protects according to the said realization dialysate concentration of claim 1 and temperature is characterized in that the protecting, monitoring device comprises:
Be used for comprising from the first temperature conductivity sensor collection protective plate of the temperature and the conductivity data of dialysis solution, it connects the first temperature conductivity sensor;
Be used to obtain the image data of protective plate, and analyze image data, or/and concentration is undesired, send the protecting, monitoring device of defense controls signal to protective plate in the temperature that monitors dialysis solution, it connects protective plate;
Be connected to first gauge tap, second gauge tap and the 3rd gauge tap between the protective plate and first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve; Defense controls signal controlling first gauge tap that is sent according to the protecting, monitoring device by protective plate is closed, second gauge tap and the 3rd gauge tap all break off, and makes the electromagnetic valve and second electromagnetic valve all cuts out, the 3rd electromagnetic valve is opened of winning.
3. the system that independently protects according to the said realization dialysate concentration of claim 2 and temperature; It is characterized in that; Said system also comprises: be used for dialysate temperature and concentration information according to the detection of the second temperature conductivity sensor; When dialysate temperature or concentration are undesired; First electromagnetic valve and second electromagnetic valve are closed in control, open the 3rd electromagnetic valve and make the dialysis solution on the dialysis solution inflow branch road flow directly into the water route control device that waste liquid is exported branch road, and it connects the second temperature conductivity sensor, first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve respectively.
4. the system that independently protects according to the said realization dialysate concentration of claim 3 and temperature is characterized in that the water route control device comprises:
Be used for comprising from the second temperature conductivity sensor collection collection plate of the temperature and the conductivity data of dialysis solution, it connects the second temperature conductivity sensor;
Be used to obtain the image data of collection plate, and analyze image data, or/and concentration is undesired, send the water-channel controller of control signal in the temperature that monitors dialysis solution, it connects collection plate;
Be connected to first gauge tap, second gauge tap and the 3rd gauge tap between the water-channel controller and first electromagnetic valve, second electromagnetic valve and the 3rd electromagnetic valve; The control signal of sending according to water-channel controller controls that first gauge tap is closed, second gauge tap and the 3rd gauge tap all break off, and makes the electromagnetic valve and second electromagnetic valve all cuts out, the 3rd electromagnetic valve is opened of winning.
5. the system that independently protects according to the said realization dialysate concentration of claim 3 and temperature is characterized in that, the protecting, monitoring device connects the water route control device through the RS-485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202184726U CN202161616U (en) | 2011-06-27 | 2011-06-27 | System capable of independently protecting concentration and temperature of dialyzate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202184726U CN202161616U (en) | 2011-06-27 | 2011-06-27 | System capable of independently protecting concentration and temperature of dialyzate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202161616U true CN202161616U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202184726U Expired - Lifetime CN202161616U (en) | 2011-06-27 | 2011-06-27 | System capable of independently protecting concentration and temperature of dialyzate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202161616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9846085B2 (en) | 2012-07-25 | 2017-12-19 | Nxstage Medical, Inc. | Fluid property measurement devices, methods, and systems |
| US10760974B2 (en) | 2012-07-25 | 2020-09-01 | Nxstage Medical, Inc. | Fluid property measurement devices, methods, and systems |
-
2011
- 2011-06-27 CN CN2011202184726U patent/CN202161616U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9846085B2 (en) | 2012-07-25 | 2017-12-19 | Nxstage Medical, Inc. | Fluid property measurement devices, methods, and systems |
| US10760974B2 (en) | 2012-07-25 | 2020-09-01 | Nxstage Medical, Inc. | Fluid property measurement devices, methods, and systems |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
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| CX01 | Expiry of patent term |