CN202149920U - Device for detecting conductivity of dialysate in hemodialysis machine - Google Patents
Device for detecting conductivity of dialysate in hemodialysis machine Download PDFInfo
- Publication number
- CN202149920U CN202149920U CN201120273732U CN201120273732U CN202149920U CN 202149920 U CN202149920 U CN 202149920U CN 201120273732 U CN201120273732 U CN 201120273732U CN 201120273732 U CN201120273732 U CN 201120273732U CN 202149920 U CN202149920 U CN 202149920U
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- China
- Prior art keywords
- connecting portion
- carbocyclic ring
- gland
- dislysate
- conductivity
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- Expired - Lifetime
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a device for detecting conductivity of dialysate in a hemodialysis machine. The device comprises a housing, a carbocyclic ring pipeline, a first connecting portion, a second connecting portion, a temperature sensor and a sampling circuit board. The carbocyclic ring pipeline is composed of a plurality of carbocyclic ring sealing parts connected successively, and is arranged in the housing. The first connecting portion and the second connecting portion are respectively connected on the two ends of the carbocyclic ring pipeline. The temperature sensor is arranged on the second connecting portion for detecting the temperature of dialysate. The sampling circuit board is used for sampling the temperature and resistance of dialysate that flows through the carbocyclic ring pipeline, and for calculating the conductivity of the dialysate. The carbocyclic ring pipeline, the temperature sensor and the sampling circuit board are sealed and fixed in the housing by epoxy resin. The device of the utility model is convenient in mounting, helps to overcome a problem that liquid leakage is liable to occur inside a conventional detection device, and also helps to prevent outside liquid from entering the detection device to erode the sampling circuit board.
Description
Technical field
The utility model relates to a kind of pick-up unit, especially relates to a kind of use is used to detect the dislysate conductivity in haemodialysis control unit device.
Background technology
In haemodialysis control unit, conductivity (conductivity) is to weigh the important indicator of inorganic salt content in the dislysate, and conductivity is higher or on the low side all can to have a negative impact to dialysis person.If the dislysate conductivity is too high, patient's meeting blood pressure body rising, even stupor because of high sodium; If the dislysate conductivity is too low, patient can be because of hanging down the sodium low blood pressure, feel sick, vomit, twitching and cause danger.In addition, dialysate temperature is set to about 37 ℃ usually; If haemolysis appears in the too high meeting of temperature, if temperature surpasses 42 ℃, significant hemolysis can appear, in addition dead; If temperature is low excessively, then patient possibly occur shivering, symptom such as vessel retraction, elevation of blood pressure.
Therefore, the conductivity of dislysate and temperature all are one of important detection indexs of dislysate in the haemodialysis control unit.
Application number is 200720082406.4 one Chinese patent application, discloses a kind of device of measuring electrical conductivity of solution in haemodialysis control unit, the dialyser multiplexing machine that is applicable to, mainly comprises holder, pressing plate, cover plate, joint and probe; Have a through hole in the holder vertically; The through hole two ends are connected with and advance/joint that drain pipe is connected, and on holder, probe is arranged in the holder pressing plate by bolt; And be fixed by pressing plate; Pressing plate and cover plate are provided with corresponding locking hole, and bolt penetrates on this locking hole and cover plate is fixed in a side of pressing plate, and a side that contacts with cover plate on the pressing plate also has metallic channel; One end of each probe is provided with contact, and the other end extend in the through hole of holder, is welded with lead on the contact, and lead is drawn by metallic channel jointly.But this device exists complex structure, inconvenient installation and probe to exist easily by the risk of solution corrosion.
Summary of the invention
The utility model proposes a kind of device that is used for detecting haemodialysis control unit dislysate conductivity, to solve the technical matters that present pick-up unit exists complex structure, inconvenient installation and easy leakage.
The utility model adopts following technical scheme to realize: a kind of device that is used for detecting haemodialysis control unit dislysate conductivity, and it comprises:
Housing;
Connect the carbocyclic ring pipeline of being arranged to successively by several carbocyclic ring sealings, it is arranged in the housing;
Connect first connecting portion and second connecting portion that is arranged on carbocyclic ring pipeline two ends respectively;
Be arranged on the temperature sensor that is used to detect dialysate temperature on second connecting portion;
Be used for the sample circuit plate that sample streams is crossed the dialysate temperature and the resistance of carbocyclic ring pipeline and calculated the dislysate conductivity;
And carbocyclic ring pipeline, temperature sensor and sample circuit plate are fixed among the housing by epoxy sealing.
More excellent, between first connecting portion and second connecting portion some pull bars being set, every pull bar all is attached to the outside surface of carbocyclic ring sealing, and two ends of every pull bar lock on first connecting portion and second connecting portion through nut respectively.
More excellent, a groove is set on second connecting portion, and the bottom of groove be provided with one with the carbocyclic ring pipeline in flow through dislysate discharge orifice connect the detection hole that is connected.
More excellent, first gland is set in groove, the bottom of first gland is that columned location division, middle part are provided with the accommodation hole that two ends connect, and the location division of first gland holds through first O-ring gasket and is arranged among the groove.
More excellent, second gland that has same structure with first gland is set among the accommodation hole of first gland, the location division of the second gland bottom holds among the accommodation hole that is arranged on first gland through second O-ring gasket.
More excellent, temperature sensor is set in the inside of sleeve, and sleeve is arranged among the accommodation hole of second gland.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is temperature sensor to be installed in connect among the second terminal connecting portion of carbocyclic ring pipeline one, and temperature sensor, carbocyclic ring pipeline and sample circuit plate are encapsulated among the housing through encapsulant.Therefore, the utility model is easy for installation, has not only solved the inner problem that leakage takes place easily of pick-up unit, has also avoided outside liquid to enter pick-up unit and corrode the sample circuit plate simultaneously.
Description of drawings
Fig. 1 is the three-dimensional decomposition texture synoptic diagram of the utility model;
Fig. 2 is the perspective view of the utility model;
Fig. 3 is the structural representation of another embodiment of the utility model.
Embodiment
In conjunction with illustrated in figures 1 and 2, the device that the utility model proposes to be used for to detect haemodialysis control unit dislysate conductivity comprises: first connecting portion 11 and second connecting portion 12 that are provided with of distance at certain intervals; Connection is arranged on several carbocyclic ring sealings 13 between first connecting portion 11 and second connecting portion 12 successively, and the middle part of each carbocyclic ring sealing 13 has the discharge orifice (not drawing among the figure) that supplies dislysate to flow through; Between first connecting portion 11 and second connecting portion 12 some pull bars 14 are set; Every pull bar 14 all is attached to the outside surface of carbocyclic ring sealing 13, and two ends of every pull bar 14 lock on first connecting portion 11 and second connecting portion 12 through nut 15 respectively; The inflow interface 16 that provides dislysate to flow into the setting of first connecting portion 11, and the outflow interface 17 that provides dislysate to flow out is set on second connecting portion 12, and flow into interface 16, flow out interface 17 all with carbocyclic ring sealing 13 on the discharge orifice perforation be connected; In addition, the groove 121 of a circle is set on second connecting portion 12, and the bottom of groove 121 be provided with one with carbocyclic ring sealing 13 on discharge orifice connect the detection hole 122 be connected; Be arranged on first gland 21 in the groove 121; The bottom of this first gland 21 has columned location division 211; And the middle part of first gland 21 is provided with the accommodation hole 212 that two ends connect, and the location division 211 of this first gland 21 holds through first O-ring gasket 22 and is arranged among the groove 121; Have second gland 23 of same structure with first gland 21, the location division of these second gland, 23 bottoms holds among the accommodation hole 212 that is arranged on first gland 21 through second O-ring gasket 24; One is set in the outside sleeve 25 of temperature sensor, and sleeve 25 is arranged among the accommodation hole of second gland 23.
After first gland 21, first O-ring gasket 22, second gland 23, second O-ring gasket 24 and sleeve 25 assemblings are accomplished, the temperature sensor in the sleeve 25 terminal even can arrive at the detection hole 122 to second connecting portion 12.
In conjunction with shown in Figure 3, in preferred embodiment of the utility model, the utility model also comprises a housing 3, structure as shown in Figure 2 fixedly install with housing 3 in, and flow into interface 16, flow out interface 17 and all expose from housing 3; In addition; The square groove 31 of a placement sample circuit plate is set on housing 3; The sample circuit plate is placed on square groove 31, and makes the sample circuit plate electrically connect two ends that resistance test probe on temperature sensor, the sample circuit plate connects the carbocyclic ring pipeline that a plurality of carbocyclic ring sealings 13 constitute respectively; Then, the use encapsulant (such as, epoxy resin) encapsulate all elements such as sample circuit plate, temperature sensor fixing in the lump.
Detect the temperature of dislysate by temperature sensor; Detect the resistance of carbocyclic ring pipeline by the resistance test probe; By the sample circuit plate detected temperatures of temperature sensor, the detection resistance of resistance test probe are sampled respectively, after the AD conversion, obtain the Current Temperatures and the resistance value of dislysate respectively; In conjunction with the length of resistance value carbocyclic ring pipeline, flow through the cross-sectional area of the through hole of dislysate; Calculate the resistivity of dislysate; And the inverse of calculated resistance rate; The inverse and the standard temperature (25 ° of C) of resistivity under the temperature of current dislysate are converted, promptly obtained the conductivity of dislysate.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. a device that is used for detecting haemodialysis control unit dislysate conductivity is characterized in that, said device comprises:
Housing;
Connect the carbocyclic ring pipeline of being arranged to successively by several carbocyclic ring sealings, it is arranged in the housing;
Connect first connecting portion and second connecting portion that is arranged on carbocyclic ring pipeline two ends respectively;
Be arranged on the temperature sensor that is used to detect dialysate temperature on second connecting portion;
Be used for the sample circuit plate that sample streams is crossed the dialysate temperature and the resistance of carbocyclic ring pipeline and calculated the dislysate conductivity;
And carbocyclic ring pipeline, temperature sensor and sample circuit plate are fixed among the housing by epoxy sealing.
2. according to the said device that is used for detecting haemodialysis control unit dislysate conductivity of claim 1; It is characterized in that; Between first connecting portion and second connecting portion some pull bars are set; Every pull bar all is attached to the outside surface of carbocyclic ring sealing, and two ends of every pull bar lock on first connecting portion and second connecting portion through nut respectively.
3. according to the said device that is used for detecting haemodialysis control unit dislysate conductivity of claim 1; It is characterized in that; A groove is set on second connecting portion, and the bottom of groove be provided with one with the carbocyclic ring pipeline in flow through dislysate discharge orifice connect the detection hole be connected.
4. according to the said device that is used for detecting haemodialysis control unit dislysate conductivity of claim 3; It is characterized in that; First gland is set in groove; The bottom of first gland is that columned location division, middle part are provided with the accommodation hole that two ends connect, and the location division of first gland holds through first O-ring gasket and is arranged among the groove.
5. according to the said device that is used for detecting haemodialysis control unit dislysate conductivity of claim 4; It is characterized in that; Second gland that has same structure with first gland is set among the accommodation hole of first gland, and the location division of the second gland bottom holds among the accommodation hole that is arranged on first gland through second O-ring gasket.
6. according to the said device that is used for detecting haemodialysis control unit dislysate conductivity of claim 5, it is characterized in that temperature sensor is set in the inside of sleeve, and sleeve is arranged among the accommodation hole of second gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120273732U CN202149920U (en) | 2011-07-30 | 2011-07-30 | Device for detecting conductivity of dialysate in hemodialysis machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120273732U CN202149920U (en) | 2011-07-30 | 2011-07-30 | Device for detecting conductivity of dialysate in hemodialysis machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149920U true CN202149920U (en) | 2012-02-22 |
Family
ID=45590974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120273732U Expired - Lifetime CN202149920U (en) | 2011-07-30 | 2011-07-30 | Device for detecting conductivity of dialysate in hemodialysis machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133043A (en) * | 2014-08-04 | 2014-11-05 | 骐骥生物科技（广州）有限公司 | Dialysate detector of hemodialysis machine |
| CN107632204A (en) * | 2017-09-07 | 2018-01-26 | 广东宝莱特医用科技股份有限公司 | A kind of conductivity of dialysate detector |
-
2011
- 2011-07-30 CN CN201120273732U patent/CN202149920U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133043A (en) * | 2014-08-04 | 2014-11-05 | 骐骥生物科技（广州）有限公司 | Dialysate detector of hemodialysis machine |
| CN107632204A (en) * | 2017-09-07 | 2018-01-26 | 广东宝莱特医用科技股份有限公司 | A kind of conductivity of dialysate detector |
| CN107632204B (en) * | 2017-09-07 | 2024-05-14 | 广东宝莱特医用科技股份有限公司 | Dialysate conductivity detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |