CN201449280U - Capacitance type detecting mechanism for transfusion parameters of syringe pump - Google Patents
Capacitance type detecting mechanism for transfusion parameters of syringe pump Download PDFInfo
- Publication number
- CN201449280U CN201449280U CN2009200612479U CN200920061247U CN201449280U CN 201449280 U CN201449280 U CN 201449280U CN 2009200612479 U CN2009200612479 U CN 2009200612479U CN 200920061247 U CN200920061247 U CN 200920061247U CN 201449280 U CN201449280 U CN 201449280U
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- syringe pump
- pedestal
- capacitor plate
- capacitance type
- detecting mechanism
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Abstract
The utility model discloses a capacitance type detecting mechanism for the transfusion parameters of a syringe pump, which comprises a pedestal for placing the syringe pump, a push slab corresponding to a piston push rod of the syringe pump is arranged on the pedestal, the push slab is connected with a capacitance pole plate (1) for realizing the common displacement when the piston push rod of the syringe pump advances, a capacitance pole plate (2) is fixed on the pedestal, and the capacitance pole plate (1) and the capacitance pole plate (2) are arranged oppositely to form a capacitive sensor. By the capacitance type detecting mechanism for the transfusion parameters of the syringe pump, the displacement change of the piston relative to a medicament container can be automatically detected, the loaded and injected medicament amount can be detected, the links of manual operation can be reduced, the amount of the loading medicament and the injecting medicament is more conveniently, accurately and rapidly controlled. The capacitance type detecting mechanism for the transfusion parameters of the syringe pump can be widely applied in the syringe pump.
Description
Technical field
The utility model relates to a kind of testing agency, particularly a kind of condenser type testing agency of syringe pump infusion parameter.
Background technology
Traditional syringe pump generally all is to be made by glass or plastic, transparent pipe, identifies agent capacity by mark containing mark on the syringe pump tube wall.When medical personnel load medicament, all be to distinguish by people's naked eyes whether the medicament of loading meets the requirements.The pre-installed medicine carrying agent of injection must be by manually finishing like this, and the risk that misreads scale is arranged when manually seeing the mark scale, if the scale mark is unintelligible or medical personnel misread scale, will cause the malpractice of or in shortage medicament excessive to patient injection.
The utility model content
In order to solve above-mentioned technical matters, the condenser type testing agency that the purpose of this utility model provides a kind of syringe pump infusion parameter finishes the detection of injected dose automatically.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of condenser type testing agency of syringe pump infusion parameter, comprise the pedestal that is used to place syringe pump, pedestal is provided with the push pedal corresponding with the piston push rod of syringe pump, push pedal is connected with the capacitor plate one of realizing common displacement when the syringe pump piston push rod advances, also be provided with capacitor plate two on the described pedestal, this capacitor plate two is fixed on the pedestal, capacitance type sensor of relative composition between described capacitor plate one and the capacitor plate two.
Capacitance type sensor is connected with the input end of a controller, described controller comprises signal processing circuit, after the signal processing circuit of the induced signal of capacitive transducer through linking to each other handled, import the microcomputer that links to each other again, microcomputer carries out exporting the control executive circuit that links to each other after the computing, and the control executive circuit is controlled the push pedal that links to each other.
The beneficial effects of the utility model are: by the condenser type testing agency of this syringe pump infusion parameter, the change in displacement that can finish the relative medicine container of piston automatically detects, realize detecting the drug dose of having loaded and having injected, reduce manually-operated link, make the dosage control of loading medicament and injection medicament convenient, accurate and quick.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the displacement detecting mechanism structural drawing of the utility model embodiment;
Fig. 2 is the system block diagram of the controller of the utility model embodiment.
Embodiment
With reference to Fig. 1, the displacement detecting mechanism structural drawing, the condenser type testing agency of this syringe pump infusion parameter, comprise the pedestal 9 that is used to place syringe pump 8, pedestal 9 is provided with the push pedal corresponding with the piston push rod of syringe pump 8 10, push pedal 10 is connected with the capacitor plate 1 of realizing common displacement when syringe pump 8 piston push rods advance, also be provided with capacitor plate 26 on the described pedestal 9, this capacitor plate 26 is fixed on the pedestal 9, capacitance type sensor of relative composition between described capacitor plate 1 and the capacitor plate 26.
Described CALCULATION OF CAPACITANCE formula is as follows:
C＝εS/4πkd
Wherein ε is the dielectric coefficient of medium, S be parallel-plate over against area, π is a circular constant 3.14, k is the electrostatic force constant, d is the distance between parallel-plate, C is a capacitance.
Can derive following formula according to above-mentioned formula:
S＝4πkdC/ε
Wherein π, k, d, ε are changeless constants, and then S and C are proportional, by measuring capacitor C, can obtain flat board over against area S, the displacement L=S/H of the relative medicine container of piston, and wherein H is the width of parallel-plate, also is a fixing constant.After obtaining relative displacement L, and the sectional area S2 of medicine container also is known constant, obtains the volume change V=L*S2 of medicament at last.
Further, as preferred embodiment, be connected with reference to the input end of Fig. 2 capacitance type sensor with a controller 1, described controller 1 comprises signal processing circuit 2, after the signal processing circuit 2 of the induced signal of capacitive transducer through linking to each other handled, import the microcomputer 3 that links to each other again, microcomputer 3 carries out exporting the control executive circuit 4 that links to each other after the computing, and 4 pairs of continuous push pedals 10 of control executive circuit are controlled.
Further, as preferred implementation, described control executive circuit 4 comprises stepper motor, and being convenient to microcomputer can realize precisely control to the push pedal 10 of syringe pump displacement detecting mechanism.
More than be that preferable enforcement of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (3)
1. the condenser type testing agency of a syringe pump infusion parameter, it is characterized in that: comprise the pedestal (9) that is used to place syringe pump, pedestal (9) is provided with the push pedal corresponding with the piston push rod of syringe pump (10), push pedal (10) is connected with the capacitor plate one (5) of realizing common displacement when the syringe pump piston push rod advances, also be provided with capacitor plate two (6) on the described pedestal (9), this capacitor plate two (6) is fixed on the pedestal (9), capacitance type sensor of relative composition between described capacitor plate one (5) and the capacitor plate two (6).
2. the condenser type testing agency of a kind of syringe pump infusion parameter according to claim 1, it is characterized in that: capacitance type sensor is connected with the input end of a controller (1), described controller (1) comprises signal processing circuit (2), after the signal processing circuit (2) of the induced signal of capacitive transducer through linking to each other handled, import the microcomputer (3) that links to each other again, microcomputer (3) carries out exporting the control executive circuit (4) that links to each other after the computing, and control executive circuit (4) is controlled the push pedal (10) that links to each other.
3. the condenser type testing agency of a kind of syringe pump infusion parameter according to claim 2 is characterized in that: described control executive circuit (4) comprises stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200612479U CN201449280U (en) | 2009-07-27 | 2009-07-27 | Capacitance type detecting mechanism for transfusion parameters of syringe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200612479U CN201449280U (en) | 2009-07-27 | 2009-07-27 | Capacitance type detecting mechanism for transfusion parameters of syringe pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449280U true CN201449280U (en) | 2010-05-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200612479U Expired - Fee Related CN201449280U (en) | 2009-07-27 | 2009-07-27 | Capacitance type detecting mechanism for transfusion parameters of syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232170A (en) * | 2014-02-17 | 2016-12-14 | 杰夫·贝克 | The system and method detected and prevent wet type from injecting |
-
2009
- 2009-07-27 CN CN2009200612479U patent/CN201449280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232170A (en) * | 2014-02-17 | 2016-12-14 | 杰夫·贝克 | The system and method detected and prevent wet type from injecting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU HUAXI MEDICAL SCIENCE TECHNOLOGY CO., LT Free format text: FORMER OWNER: LIAO JUNCAI Effective date: 20110803 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110803 Address after: No. 80 Guangzhou innovation base in G district city moon road Guangzhou city Guangdong province 510000 science 401-410 Patentee after: Guangzhou Huaxi Medical Science Technology Co., Ltd. Address before: No. 80 Guangzhou innovation base in G district city moon road Guangzhou city Guangdong province 510000 science 401-410 Patentee before: Liao Juncai |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170930 Address after: 510530, 301 floor, third floor, building B8, Kaiyuan Avenue, Guangzhou hi tech Industrial Development Zone, Guangzhou, Guangdong, 11 Patentee after: Guangzhou Tiancheng medical technology Limited by Share Ltd Address before: No. 80 Guangzhou innovation base in G district city moon road Guangzhou city Guangdong province 510000 science 401-410 Patentee before: Guangzhou Huaxi Medical Science Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20180727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |