CN104225701A - Valve state detection method and system and peritoneal dialysis equipment - Google Patents
Valve state detection method and system and peritoneal dialysis equipment Download PDFInfo
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- CN104225701A CN104225701A CN201410500612.7A CN201410500612A CN104225701A CN 104225701 A CN104225701 A CN 104225701A CN 201410500612 A CN201410500612 A CN 201410500612A CN 104225701 A CN104225701 A CN 104225701A
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- 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
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- 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
- A61M2209/00—Ancillary equipment
- A61M2209/02—Equipment for testing the apparatus
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- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a valve state detection method. The valve state detection method comprises the following steps: opening an inlet end of a valve, closing an outlet end of the valve and inputting gas with rated pressure into the valve through the inlet end; determining an input state of the valve according to valve internal pressure detected by a sensor connected with the valve; when the input state of the valve is determined to be a normal state, closing the inlet end and opening the outlet end to exhaust the gas in the valve; determining an output state of the valve according to the valve internal pressure detected by the sensor. The valve state detection method has the following beneficial effects: the state of the valve for controlling fluid in peritoneal dialysis equipment can be detected, the performance of the valve is prevented from being degraded and thus the influences on the fluid control accuracy and the treatment effect are prevented.
Description
Technical field
The present invention relates to field of medical device, particularly relate to a kind of detection method of valve state, detection system and peritoneal dialysis device.
Background technology
Peritoneal dialysis technology is the variant being similar to artificial blood purification.It is the filter membrane of the peritoneum by utilizing the blood supply of patient good as health self.Dialysis solution is inputed to the abdominal cavity of patient by conduit, according to penetration theory, urinary fractions is got rid of and is entered abdominal cavity from blood.After a few hours, the dialysis solution then this being carried this urinary fractions is discharged from abdominal cavity, thus realizes the effect of dialysis.
In existing technology, several diverse ways generally can be adopted to carry out peritoneal dialysis.Such as, for CAPD (CAPD), patient oneself manually can change dialysis solution, and such as, every day can change 4 to 5 dialysis solution; And for automatization's peritoneal dialysis (APD), the equipment that one is referred to as circulating instrument (Cycler) can realize automatically changing bag filter at night, thus patient can not be restricted by day.
In the peritoneal dialysis of this automatization, abdominal cavity is filled dialysis solution by circulating instrument, and fill volume needs to control, and provides maximum loading to be such as about 3500ml for average adult to patient.Usually, a standard value can be adopted to be used as loading, can avoid determining by test the complex work that specific to each patient, loading brings.
Usually, in peritoneal dialysis instrument, the conduit being inserted abdominal cavity of patients by inputs dialysis solution.Need to use a large amount of valves to control the dialysate fluid in each pipeline in the process of input dialysis solution.The peritoneal dialysis device of prior art, lacks the detection to valve performance.The too high hydraulic performance decline that likely can make valve of frequency of utilization of valve, affects the precision that fluid controls, thus affects therapeutic effect.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of detection method of valve state, detection system and peritoneal dialysis device, can detect the performance of valve, and avoiding affects the precision of fluid control because valve goes wrong.
In order to solve the problems of the technologies described above, the invention provides a kind of detection method of valve state, comprising:
Open the entrance point of valve, and close the port of export of this valve, inputted the gas of specified atmospheric pressure value by entrance point to described valve;
The described valve internal gas pressure value detected according to the sensor be connected with described valve determines the input state of described valve;
When determine described valve be input as normal condition after, close described entrance point, and open the described port of export and discharge gas in described valve;
The described valve internal gas pressure value detected according to described sensor determines the output state of described valve.
Further, the described valve internal gas pressure value that the sensor that described basis is connected with described valve detects determines that the input state of described valve comprises:
Described sensor, after the first Preset Time, detects the current gas pressure of described valve;
Mated with the first Reference pressure preset by the current gas pressure of described valve, if the match is successful, then what judge described valve is input as normal condition;
Otherwise, described in judgement, be input as abnormality.
Further, the described described valve internal gas pressure value detected according to described sensor determines whether the output of described valve normally comprises:
Described sensor, after reaching the first Reference pressure, mates with the first Preset Time according to the time used, if the match is successful, then what judge described valve is input as normal condition;
Otherwise what judge described valve is input as abnormality.
Further, the described described valve internal gas pressure value detected according to described sensor determines whether the output of described valve normally comprises:
Described sensor, after the second Preset Time, detects the current gas pressure of described valve;
The current gas pressure of described valve is mated with the second Reference pressure preset, if the match is successful, then judges that the output of described valve is normal condition;
Otherwise, judge that the output of described valve is abnormality.
Further, the described described valve internal gas pressure value detected according to described sensor determines whether the output of described valve normally comprises:
Described sensor, after reaching the second Reference pressure, mates with the second Preset Time according to the time used, if the match is successful, then judges that the output of described valve is normal condition;
Otherwise, judge that the output of described valve is abnormality.
Further, it is characterized in that, also comprise:
When the inputing or outputing as abnormality of described valve, carry out alarm.
Further, it is characterized in that, also comprise:
Described first Reference pressure is 7psi;
Described second Reference pressure is 0.
Further, described alarm comprises the number information of described valve.
Meanwhile, the present invention also provides a kind of valve detection system, comprising the valve for controlling fluid circulation, also comprising:
Control unit, for controlling the entrance point of described valve and opening or closing of the port of export; Control to open the entrance point of valve when detecting the entrance point of described valve and close the port of export of this valve; When determine described valve be input as normal condition after, close described entrance point, and open the described port of export;
Gas source, is connected with the entrance point of described valve, opens the entrance point of valve in described control unit control and after closing the port of export of this valve, inputs the gas of specified atmospheric pressure value to described valve;
Sensor, is electrically connected with described valve, for detecting described valve internal gas pressure value;
Processing unit, is connected with described sensor, and the described valve internal gas pressure value for detecting according to described sensor determines the input and output state of described valve.
Meanwhile, the present invention also provides a kind of peritoneal dialysis device, and described peritoneal dialysis device comprises described valve detection system.
Implement the embodiment of the present invention and will bring following beneficial effect: the state that can detect in peritoneal dialysis device the valve controlling fluid, avoid the hydraulic performance decline of valve affect the precision of fluid control thus affect therapeutic effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the valve condition detecting system of the peritoneal dialysis device that the embodiment of the present invention provides.
Fig. 2 is the embodiment schematic diagram of the detection method of valve state of the present invention.
Fig. 3 is the detection method embodiment step S12 detailed description of the invention schematic diagram of valve state of the present invention.
Fig. 4 is the detection method embodiment step S14 detailed description of the invention schematic diagram of valve state of the present invention.
Detailed description of the invention
The explanation of following embodiment is with reference to accompanying drawing, can in order to the specific embodiment implemented in order to example the present invention.The direction that the present invention mentions and position term, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " top ", " bottom ", " side " etc., be only the direction with reference to accompanying drawing or position.Therefore, the direction of use and position term are in order to illustrate and to understand the present invention, but not limiting the scope of the invention.
Please refer to shown in Fig. 1, the embodiment of the present invention provides a kind of valve condition detecting system of peritoneal dialysis device, comprising the valve 10 for controlling fluid circulation, also comprising:
Control unit 20, for the entrance point 11 of control valve 10 and opening or closing of the port of export 12; Control to open the entrance point 11 of valve 10 when detecting the entrance point 11 of valve 10 and close the port of export 12 of this valve 10; When determine valve 10 be input as normal condition after, close entrance point 11, and open the port of export 12;
Gas source 30, is connected with the entrance point 11 of valve 10, opens the entrance point 11 of valve 10 in control unit 20 control and after closing the port of export 12 of this valve 10, inputs the gas of specified atmospheric pressure value to valve 10;
Sensor 40, is electrically connected with valve 10, for detecting valve 10 internal gas pressure value;
Processing unit 50, is connected with sensor 40, for the input and output state of valve 10 internal gas pressure value determination valve 10 detected according to sensor 40.Wherein input state and output state include normal condition and abnormality.
Control unit 20 is connected with valve 10 respectively with sensor 40, and gas source 30 is connected with valve 10 entrance point 11, and processing unit 50 is connected with sensor 30.
Concrete, composition graphs 1, control unit 20 controls the entrance point 11 opening valve 10, and closes the port of export 12 of this valve, and gas source 30 inputs the gas of specified atmospheric pressure value to valve 10 by entrance point 11, wherein gas source 30 is malleation air accumulator.
Sensor 40 detects the air pressure in valve 10 according to the rule detection preset, and is specifically as follows the current gas pressure arriving and detect after the first Preset Time in valve 10.Current gas pressure in valve 10 mates with the first Reference pressure by processing unit 50, and whether this coupling is specially the current gas pressure judged in valve 10 identical with the value of the first Reference pressure.First Reference pressure is the nominal pressure value of input in theory, in peritoneal dialysis device of the present invention, the first Reference pressure is 7psi, the loss caused due to objective factor in actual use, certain barometric error scope can be set according to the required precision of equipment itself, when the difference of the current gas pressure in valve 10 and the first Reference pressure falls within the scope of the barometric error of setting, be also considered as that the match is successful.If the match is successful, then what judge valve 10 is input as normal condition; Otherwise what judge valve 10 is input as abnormality.In the present embodiment, the first Preset Time is the time used when reaching the first Reference pressure in theory, and this first Preset Time also comprises regular hour range of error.
In addition, sensor 40 can also detect the air pressure in valve 10 according to certain time interval, when the atmospheric pressure value in this valve 10 reaches the first Reference pressure, calculates the time used.Processing unit 50 mated with the first Preset Time preset according to the time calculated, if the match is successful, then what judge valve 10 is input as normal condition; Otherwise what judge valve 10 is input as abnormality.First Preset Time is the time used when reaching the first Reference pressure in theory, and this first Preset Time also comprises regular hour range of error, when the time used when the atmospheric pressure value in this valve 10 reaches the first Reference pressure and the difference of the first Preset Time fall within the scope of the time error of setting, be also considered as that the match is successful.
Valve 10 be input as normal condition after, control unit 20 closes entrance point 11, and opens the air pressure in the port of export 12 dump valve 10.
Sensor 40 detects the air pressure in valve 10 according to the rule detection preset, and is specifically as follows the current gas pressure arriving and detect after the second Preset Time in valve 10.Current gas pressure in valve 10 mates with the first Reference pressure by processing unit 50, and whether this coupling is specially the current gas pressure judged in valve 10 identical with the value of the second Reference pressure.Second Reference pressure is the atmospheric pressure value in valve 10 after evacuate air in theory, is 0.The loss caused due to objective factor in actual use, certain barometric error scope can be set according to the required precision of equipment itself, when the difference of the current gas pressure in valve 10 and the second Reference pressure falls within the scope of the barometric error of setting, be also considered as that the match is successful.If the match is successful, then judge that the output of valve 10 is normal; Otherwise, judge that the output of valve 10 is abnormality.In the present embodiment, the second Preset Time is the time used when reaching the second Reference pressure in theory, and this second Preset Time also comprises regular hour range of error.
In addition, sensor 40 can also detect the air pressure in valve 10 according to certain time interval, when the atmospheric pressure value in this valve 10 reaches the second Reference pressure, calculates the time used.Processing unit 50 mated with the second Preset Time preset according to the time calculated, if the match is successful, then what judge valve 10 is input as normal condition; Otherwise, judge that the import and export of valve 10 is abnormality.Second Preset Time is the time used when reaching the second Reference pressure in theory, and this second Preset Time also comprises regular hour range of error, when the time used when the atmospheric pressure value in this valve 10 reaches the second Reference pressure and the difference of the second Preset Time fall within the scope of the time error of setting, be also considered as that the match is successful.
Further, except valve 10, control unit 20, gas source 30, sensor 40 and processing unit 50, can also comprise for when the Tip element inputed or outputed as carrying out alarm during abnormality judging valve 10, this Tip element places the number information of valve 10 in alarm, is convenient to change and safeguard.
The peritoneal dialysis device that the present invention also provides one to comprise this valve condition detecting system, this peritoneal dialysis device comprises sends out condition detecting system shown in Fig. 1.
It is the embodiment schematic diagram of the detection method of valve state of the present invention see Fig. 2, Fig. 2.In the present embodiment, the detection method of valve state specifically comprises:
Step S11, opens the entrance point of valve, and closes the port of export of this valve, is inputted the gas of specified atmospheric pressure value by entrance point to described valve.
Step S12, the described valve internal gas pressure value detected according to the sensor be connected with described valve determines the input state of described valve.
In the present embodiment, input state comprises normal condition and abnormality.See Fig. 3, determine that the input state of described valve also specifically comprises according to the described valve internal gas pressure value that the sensor be connected with described valve detects:
Step S121, sensor, after the first Preset Time, detects the current gas pressure in valve.
Step S122, mated with the first Reference pressure preset by the current gas pressure of described valve, if the match is successful, then what judge described valve is input as normal condition; Otherwise, described in judgement, be input as abnormality.First Reference pressure is the nominal pressure value of input in theory, in peritoneal dialysis device of the present invention, the first Reference pressure is 7psi, the loss caused due to objective factor in actual use, certain barometric error scope can be set according to the required precision of equipment itself, when the difference of the current gas pressure in valve and the first Reference pressure falls within the scope of the barometric error of setting, be also considered as that the match is successful.If the match is successful, then what judge valve is input as normal condition; Otherwise what judge valve is input as abnormality.In the present embodiment, the first Preset Time is the time used when reaching the first Reference pressure in theory, and this first Preset Time also comprises regular hour range of error.
Or, determine that the input state of described valve is also specially according to the described valve internal gas pressure value that the sensor be connected with described valve detects: sensor is after reaching the first Reference pressure, mate with the first Preset Time according to the time used, if the match is successful, then what judge described valve is input as normal condition; Otherwise what judge described valve is input as abnormality.Sensor can detect the air pressure in valve according to certain time interval, when the atmospheric pressure value in this valve reaches the first Reference pressure, calculate the time used.Mate with the first Preset Time preset according to the time calculated, if the match is successful, then what judge valve is input as normal condition; Otherwise what judge valve is input as abnormality.First Preset Time is the time used when reaching the first Reference pressure in theory, and this first Preset Time also comprises regular hour range of error, when the difference of the time used when the atmospheric pressure value in this valve reaches the first Reference pressure and the first Preset Time falls within the scope of the time error of setting, be also considered as that the match is successful.
Step S13, when determine described valve be input as normal condition after, close described entrance point, and open the described port of export and discharge gas in described valve.
Step S14, the described valve internal gas pressure value detected according to described sensor determines the output state of described valve.
In the present embodiment, output state comprises normal condition and abnormality.See Fig. 4, determine that the output state of described valve specifically comprises according to the described valve internal gas pressure value that described sensor detects:
Step S141, sensor, after the second Preset Time, detects the current gas pressure of valve.
Step S142, mates the current gas pressure of valve with the second Reference pressure preset, if the match is successful, then judges that the output of valve is normal condition; Otherwise, judge that the output of described valve is abnormality.Detect the air pressure in valve according to the rule detection preset, be specifically as follows the current gas pressure arriving and detect after the second Preset Time in valve.Mated with the first Reference pressure by current gas pressure in valve, whether this coupling is specially the current gas pressure judged in valve identical with the value of the second Reference pressure.Second Reference pressure is the atmospheric pressure value in valve after evacuate air in theory, is 0.The loss caused due to objective factor in actual use, certain barometric error scope can be set according to the required precision of equipment itself, when the difference of the current gas pressure in valve and the second Reference pressure falls within the scope of the barometric error of setting, be also considered as that the match is successful.If the match is successful, then judge that the output of valve is normal; Otherwise, judge that the output of valve is abnormality.In the present embodiment, the second Preset Time is the time used when reaching the second Reference pressure in theory, and this second Preset Time also comprises regular hour range of error.
Or, determine that the output state of described valve specifically comprises according to the described valve internal gas pressure value that described sensor detects: sensor is after reaching the second Reference pressure, mate with the second Preset Time according to the time used, if the match is successful, then judge that the output of described valve is normal condition; Otherwise, judge that the output of described valve is abnormality.Sensor can detect the air pressure in valve according to certain time interval, when the atmospheric pressure value in this valve reaches the second Reference pressure, calculate the time used.Mate with the second Preset Time preset according to the time calculated, if the match is successful, then what judge valve is input as normal condition; Otherwise, judge that the import and export of valve is abnormality.Second Preset Time is the time used when reaching the second Reference pressure in theory, and this second Preset Time also comprises regular hour range of error, when the difference of the time used when the atmospheric pressure value in this valve reaches the second Reference pressure and the second Preset Time falls within the scope of the time error of setting, be also considered as that the match is successful.
Further, the detection method of this valve state also comprises:
Step S15, when the inputing or outputing as abnormality of described valve, carries out alarm.The number information of valve can be set in alarm, be convenient to maintenance and inspection.
In sum, the embodiment of the present invention is improved existing peritoneal dialysis device, by using valve condition detecting system and method, the state of the valve controlling fluid can be detected in peritoneal dialysis device, avoiding the hydraulic performance decline of valve affect the precision of fluid control thus affect therapeutic effect.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a detection method for valve state, is characterized in that, comprising:
Open the entrance point of valve, and close the port of export of this valve, inputted the gas of specified atmospheric pressure value by entrance point to described valve;
The described valve internal gas pressure value detected according to the sensor be connected with described valve determines the input state of described valve;
When determine described valve be input as normal condition after, close described entrance point, and open the described port of export and discharge gas in described valve;
The described valve internal gas pressure value detected according to described sensor determines the output state of described valve.
2. detection method according to claim 1, is characterized in that, the described valve internal gas pressure value that the sensor that described basis is connected with described valve detects determines that the input state of described valve comprises:
Described sensor, after the first Preset Time, detects the current gas pressure of described valve;
Mated with the first Reference pressure preset by the current gas pressure of described valve, if the match is successful, then what judge described valve is input as normal condition;
Otherwise, described in judgement, be input as abnormality.
3. detection method according to claim 1, is characterized in that, the described valve internal gas pressure value that the sensor that described basis is connected with described valve detects determines that the input state of described valve comprises:
Described sensor, after reaching the first Reference pressure, mates with the first Preset Time according to the time used, if the match is successful, then what judge described valve is input as normal condition;
Otherwise what judge described valve is input as abnormality.
4. detection method according to claim 1, is characterized in that, the described described valve internal gas pressure value detected according to described sensor determines that the output state of described valve comprises:
Described sensor, after the second Preset Time, detects the current gas pressure of described valve;
The current gas pressure of described valve is mated with the second Reference pressure preset, if the match is successful, then judges that the output of described valve is normal condition;
Otherwise, judge that the output of described valve is abnormality.
5. detection method according to claim 1, is characterized in that, the described described valve internal gas pressure value detected according to described sensor determines that the output state of described valve comprises:
Described sensor, after reaching the second Reference pressure, mates with the second Preset Time according to the time used, if the match is successful, then judges that the output of described valve is normal condition;
Otherwise, judge that the output of described valve is abnormality.
6. the detection method according to any one of claim 1-5, is characterized in that, also comprises:
When the inputing or outputing as abnormality of described valve, carry out alarm.
7. the detection method according to any one of claim 1-5, is characterized in that, also comprises:
Described first Reference pressure is 7psi;
Described second Reference pressure is 0.
8. detection method according to claim 6, is characterized in that, described alarm comprises the number information of described valve.
9. a valve detection system, comprising the valve for controlling fluid circulation, it is characterized in that, also comprise:
Control unit, for controlling the entrance point of described valve and opening or closing of the port of export; Control to open the entrance point of valve when detecting the entrance point of described valve and close the port of export of this valve; When determine described valve be input as normal condition after, close described entrance point, and open the described port of export;
Gas source, is connected with the entrance point of described valve, opens the entrance point of valve in described control unit control and after closing the port of export of this valve, inputs the gas of specified atmospheric pressure value to described valve;
Sensor, is electrically connected with described valve, for detecting described valve internal gas pressure value;
Processing unit, is connected with described sensor, and the described valve internal gas pressure value for detecting according to described sensor determines the input and output state of described valve.
10. a peritoneal dialysis device, is characterized in that, described peritoneal dialysis device comprises valve detection system as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410500612.7A CN104225701A (en) | 2014-09-26 | 2014-09-26 | Valve state detection method and system and peritoneal dialysis equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410500612.7A CN104225701A (en) | 2014-09-26 | 2014-09-26 | Valve state detection method and system and peritoneal dialysis equipment |
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| CN201410500612.7A Pending CN104225701A (en) | 2014-09-26 | 2014-09-26 | Valve state detection method and system and peritoneal dialysis equipment |
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| CN105115714A (en) * | 2015-09-09 | 2015-12-02 | 南车株洲电力机车有限公司 | Pressure calibration method and apparatus |
| WO2018041076A1 (en) * | 2016-08-31 | 2018-03-08 | 北京雅果科技有限公司 | Cuff pressure management device |
| CN111076922A (en) * | 2019-12-17 | 2020-04-28 | 重庆南方数控设备股份有限公司 | Method for judging working state of electromagnetic valve based on pressure detection |
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| US6057771A (en) * | 1997-06-24 | 2000-05-02 | Planer Products Ltd. | Fluid delivery apparatus |
| CN101191754A (en) * | 2006-11-27 | 2008-06-04 | 比亚迪股份有限公司 | Checking apparatus for checking product sealing performance and checking method |
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| CN111076922A (en) * | 2019-12-17 | 2020-04-28 | 重庆南方数控设备股份有限公司 | Method for judging working state of electromagnetic valve based on pressure detection |
| CN111076922B (en) * | 2019-12-17 | 2021-09-24 | 重庆南方数控设备股份有限公司 | Method for judging working state of electromagnetic valve based on pressure detection |
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Application publication date: 20141224 |
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