CN107632204B - Dialysate conductivity detector - Google Patents
Dialysate conductivity detector Download PDFInfo
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- CN107632204B CN107632204B CN201710801486.2A CN201710801486A CN107632204B CN 107632204 B CN107632204 B CN 107632204B CN 201710801486 A CN201710801486 A CN 201710801486A CN 107632204 B CN107632204 B CN 107632204B
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- 238000001514 detection method Methods 0.000 claims abstract description 99
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a dialysate conductivity detector, which comprises a shell, wherein a detection device is fixed in the shell, a main through hole through which liquid flows is arranged in the detection device, a conductive spring is sleeved outside the detection device, one end of the conductive spring is electrically connected with the detection device, the other end of the conductive spring is electrically connected with a detection circuit board, the detection circuit board is fixed in the shell, a temperature sensor is further arranged on the detection device, and the temperature sensor is electrically connected with the detection circuit board; the electric conduction spring is respectively and electrically connected with the detection block and the detection circuit board to form an electric conduction signal acquisition end, and then the electric conduction detection value with high precision and good stability is fed back through the calculation of the detection circuit board, so that the connection is simpler and more reliable, and the detection is more stable; the temperature signal and the conductivity signal are collected simultaneously, and the influence of the temperature on the detection value is eliminated by adopting a method of collecting the conductivity signal and the temperature in a centralized way, so that the result is more accurate, and the detection effect is better.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a dialysate conductivity detector.
Background
When hemodialysis is performed, the conductivity of the dialysate is an important index for measuring the content of inorganic salt in the dialysate, and adverse reactions can be generated by dialyzers due to higher or lower conductivity. If the conductivity of the dialysate is too high, the blood pressure of a patient is increased and even coma is caused by high sodium; if the conductivity of the dialysate is too low, the patient will have reduced blood pressure due to low sodium, and even nausea, vomiting, and convulsions will occur in severe cases, so that the conductivity of the dialysate needs to be monitored at all times. At present, the liquid conductivity detector in the market has single function, and most of the liquid conductivity detectors only detect conductivity parameters, and meanwhile, because the parts are complex in structure, the parts are easy to short-circuit, the detection precision is low, the detection result is unstable, and false alarm is easy to occur.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the dialysate conductivity detector which can detect conductivity and temperature simultaneously, improves detection precision and is more convenient to assemble.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a dialysate conductivity detector, includes the casing, the casing internal fixation has detection device, be provided with the main through-hole that holds the liquid flow in the detection device, detection device overcoat is equipped with the electric conduction spring, electric conduction spring's one end and detection device electric connection, the other end and a detection circuit board electric connection, detection circuit board is fixed in the casing, still be provided with temperature sensor on the detection device, temperature sensor and detection circuit board electric connection.
As a further improvement of the scheme, the detection device comprises at least two detection blocks and positioning blocks uniformly arranged between the detection blocks at intervals, the conductive springs are respectively sleeved outside the detection blocks and are electrically connected with the detection blocks, and the main through holes penetrate through each positioning block and each detection block.
As a further improvement of the scheme, the detection block and the positioning block are in transitional sealing through a sealing ring.
As a further improvement of the scheme, a supporting frame is further fixed in the shell, an upper guide hole and a lower guide hole are arranged on the supporting frame, the detection device is arranged on the supporting frame, and the main through hole is communicated with the upper guide hole and the lower guide hole.
As a further improvement of the scheme, one side of the supporting frame is provided with a circuit board fixing mechanism, and the detection circuit board is detachably arranged on the circuit board fixing mechanism.
As a further improvement of the scheme, the supporting frame comprises an upper bracket and a lower bracket, and the circuit board fixing mechanism comprises a baffle plate arranged on the upper bracket and a limiting groove arranged on the lower bracket.
As a further improvement of the scheme, the upper bracket and the lower bracket are fixed up and down through a plurality of connecting rods, and insulating rod sleeves are sleeved outside the connecting rods.
As a further improvement of the scheme, the temperature sensor is inserted into the upper bracket, and the detection end of the temperature sensor is positioned in the upper guide hole.
The invention has the beneficial effects that:
According to the dialysate conductivity detector, the conductive springs are respectively and electrically connected with the detection block and the detection circuit board to form the signal acquisition end of the conductivity, and then the conductivity detection value with high precision and good stability is fed back through the calculation of the detection circuit board, so that the connection is simpler and more reliable, and the detection is more stable; the temperature signal and the conductivity signal are collected simultaneously, and the influence of the temperature on the detection value is eliminated by adopting a method of collecting the conductivity and the temperature in a centralized way, so that the result is more accurate and the detection effect is better; meanwhile, the temperature of the dialysate is detected, the detection function is more abundant, and the detection effect is better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that a person skilled in the art can obtain other designs and drawings from these drawings without inventive effort:
FIG. 1 is a schematic diagram of a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the preferred embodiment of the present invention;
FIG. 3 is a front view in cross section of a preferred embodiment of the present invention;
FIG. 4 is a right side view in cross section of a preferred embodiment of the present invention;
fig. 5 is a schematic view of the hidden structure of the housing according to the preferred embodiment of the invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 5, a dialysate conductivity detector comprises a housing 1, a detection device is fixed in the housing 1, a main through hole 4 through which liquid flows is arranged in the detection device, a conductive spring 5 is sleeved outside the detection device, electric signals are collected by the conductive spring 5, the conductive spring 5 is convenient to install and can shrink, and detection devices with different diameters are conveniently installed and used. One end of the electric conduction spring 5 is electrically connected with the detection device, the other end of the electric conduction spring is electrically connected with a detection circuit board 6, a circuit board fixing mechanism is arranged on one side of the support frame, the detection circuit board 6 is detachably arranged on the circuit board fixing mechanism, a temperature sensor 7 is further arranged on the detection device, and the temperature sensor 7 is electrically connected with the detection circuit board 6.
Dialysate flows from main through-hole 4, detects the conductivity of piece 2 response dialysate, and electric conductivity spring 5 and detection piece 2 electric connection collect the signal of detecting piece 2, and electric conductivity spring 5 gives detection circuit board 6 with the signal transmission, through the calculation of detection circuit board 6, feeds back the high-accuracy and good conductivity detection value of stability, connects more simply reliably, detects more stably. The temperature sensor 7 is arranged to detect the temperature of the dialysate simultaneously, and the method of centralized collection of conductivity and temperature is adopted, so that detection is richer, influence of temperature on a detection value is eliminated, the result is more accurate, and the detection effect is better.
The detection device comprises at least two detection blocks 2 and a positioning block 3 which is uniformly arranged between the detection blocks 2 at intervals, the detection blocks 2 and the positioning block 3 are in transitional sealing through a sealing ring 8, the sealing performance is higher, and liquid leakage is not easy to occur. The electric conduction springs 5 are respectively sleeved outside the detection blocks 2 and are electrically connected with the detection blocks 2, and the main through holes 4 penetrate through each positioning block 3 and each detection block 2.
The shell 1 is also internally fixed with a supporting frame, an upper guide hole 10 and a lower guide hole 11 are arranged on the supporting frame, the detection device is arranged on the supporting frame, and the main through hole 4 is communicated with the upper guide hole 10 and the lower guide hole 11. Utilize the fixed detection device of support frame, the location is convenient simple, and easy installation has saved assembly time for detection device fixed in position moreover, be difficult for dislocation during the use, the situation such as short circuit can not take place, detects more stably.
The support frame includes upper bracket 91 and lower carriage 92, circuit board fixed establishment is including setting up separation blade 12 on upper bracket 91, and set up limit groove 13 on the lower carriage 92, and the lower extreme of detection circuit board 6 is inserted and is established in limit groove 13, and the upper end of detection circuit board 6 is spacing through separation blade 12, and installation and dismantlement are all convenient and fast more. The upper bracket 91 and the lower bracket 92 are fixed up and down through a plurality of connecting rods 14, the insulating rod sleeves 15 are sleeved outside the connecting rods 14, and the insulating rod sleeves 15 can avoid the contact between the connecting rods 14 and the conductive springs 4, so that short-circuit accidents are avoided, and the detection is safer and more stable.
The temperature sensor 7 is inserted in the upper bracket 91, the detection end of the temperature sensor 7 is positioned in the upper guide hole 10, the temperature sensor 7 is arranged in the liquid inlet direction, so that the temperature loss of the dialysate in the flowing process can be avoided, the detection accuracy is ensured, and the detection result is more reliable.
While the preferred embodiments of the present application have been illustrated and described, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (3)
1. The utility model provides a dialysate conductivity detector which characterized in that: the device comprises a shell (1), wherein a detection device is fixed in the shell (1), a main through hole (4) through which liquid flows is arranged in the detection device, a conductive spring (5) is sleeved outside the detection device, one end of the conductive spring (5) is electrically connected with the detection device, the other end of the conductive spring is electrically connected with a detection circuit board (6), the detection circuit board (6) is fixed in the shell (1), a temperature sensor (7) is further arranged on the detection device, and the temperature sensor (7) is electrically connected with the detection circuit board (6); the conductive spring (5) can stretch and retract, and is suitable for detection devices with different diameters;
a supporting frame is also fixed in the shell (1), an upper guide hole (10) and a lower guide hole (11) are arranged on the supporting frame, the detection device is arranged on the supporting frame, the main through hole (4) is communicated with the upper guide hole (10) and the lower guide hole (11), and the detection device is fixed by the supporting frame;
one side of the supporting frame is provided with a circuit board fixing mechanism, and the detection circuit board (6) is detachably arranged on the circuit board fixing mechanism;
The support frame comprises an upper support (91) and a lower support (92), the circuit board fixing mechanism comprises a baffle (12) arranged on the upper support (91) and a limit groove (13) arranged on the lower support (92), the lower end of the detection circuit board (6) is inserted into the limit groove (13), and the upper end of the detection circuit board (6) is limited by the baffle (12);
The upper bracket (91) and the lower bracket (92) are fixed up and down through a plurality of connecting rods (14), and insulating rod sleeves (15) are sleeved outside the connecting rods (14);
the temperature sensor (7) is inserted into the upper bracket (91), and the detection end of the temperature sensor (7) is positioned in the upper guide hole (10); the temperature sensor (7) is arranged in the liquid inlet direction, so that temperature loss of the dialysate in the flowing process can be avoided.
2. The dialysate conductivity detector of claim 1, wherein: the detection device comprises at least two detection blocks (2) and positioning blocks (3) uniformly arranged between the detection blocks (2) at intervals, the electric conduction springs (5) are respectively sleeved outside the detection blocks (2) and are electrically connected with the detection blocks (2), and the main through holes (4) penetrate through each positioning block (3) and each detection block (2).
3. The dialysate conductivity detector of claim 2, wherein: the detection block (2) and the positioning block (3) are in transitional sealing through a sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801486.2A CN107632204B (en) | 2017-09-07 | 2017-09-07 | Dialysate conductivity detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801486.2A CN107632204B (en) | 2017-09-07 | 2017-09-07 | Dialysate conductivity detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107632204A CN107632204A (en) | 2018-01-26 |
| CN107632204B true CN107632204B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801486.2A Active CN107632204B (en) | 2017-09-07 | 2017-09-07 | Dialysate conductivity detector |
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| Country | Link |
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| CN (1) | CN107632204B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779961A (en) * | 2019-11-06 | 2020-02-11 | 中国科学院生态环境研究中心 | Bicarbonate radical detection device, use method thereof and dialysis machine |
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| JPH11149954A (en) * | 1997-11-13 | 1999-06-02 | Yokowo Co Ltd | Spring connector and portable radio set using this spring connector |
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| CN2659512Y (en) * | 2003-12-15 | 2004-12-01 | 张贵洲 | Intelligent body builder sensor for table tennis |
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2017
- 2017-09-07 CN CN201710801486.2A patent/CN107632204B/en active Active
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|---|---|---|---|---|
| US4137168A (en) * | 1976-10-02 | 1979-01-30 | Klauschenz & Perrot Kg | Device for dialysation of blood |
| CN2240139Y (en) * | 1995-05-03 | 1996-11-13 | 张铁英 | Conductivity, temperature and negative pressure measuring apparatus |
| JPH11149954A (en) * | 1997-11-13 | 1999-06-02 | Yokowo Co Ltd | Spring connector and portable radio set using this spring connector |
| CN101620198A (en) * | 2009-08-18 | 2010-01-06 | 刘宗瑞 | Deformation-resistant electrochemical detection electrode and manufacturing method thereof |
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| CN107632204A (en) | 2018-01-26 |
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