CN2699285Y - Centrifugal type blood composition specific volume measurement equipment - Google Patents
Centrifugal type blood composition specific volume measurement equipment Download PDFInfo
- Publication number
- CN2699285Y CN2699285Y CN 200420064216 CN200420064216U CN2699285Y CN 2699285 Y CN2699285 Y CN 2699285Y CN 200420064216 CN200420064216 CN 200420064216 CN 200420064216 U CN200420064216 U CN 200420064216U CN 2699285 Y CN2699285 Y CN 2699285Y
- Authority
- CN
- China
- Prior art keywords
- specific volume
- blood component
- centrifugal
- component specific
- centrifugal blood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to a centrifugal type blood composition specific volume measurement device which is composed of a power supply system, a centrifugal separation system, a measurement system and a control system, wherein, the power supply system comprises a transformer and a power panel; the centrifugal separation system is composed of a direct current motor, a driver, a tray and a protecting cover, the measurement system is composed of a capillary cavity body, a step motor, a screw rod, a photosensor and a circuit board of the measurement system, and the control system is composed of a circuit board of the control system and a liquid crystal display screen. When the utility model is used for measurement, a capillary pipe of trace blood after centrifugal lay separation is arranged in the capillary cavity body with a slit; a screw rod mechanism is driven by the step motor, so the photosensor scans along the slit. The length of a blood composition column and the length of an entire liquid column after separation are accurately measured, and according to the definition of specific volume, the specific volume value of the composition in the blood is calculated; the specific volume value is corrected in the device via a linear regression method, and a final result within the range of an allowable error is obtained.
Description
Technical field
The utility model belongs to medical instruments field, is the device that the specific volume of various compositions in the blood is measured.
Background technology
Blood is the important component part of human body, and the various blood components in the blood all have different functions.Play the oxygen effect of taking such as red blood cell, in operation, the numerical value of packed cell volume (Hct) is that the doctor judges whether patient needs an important indicator of transfusing blood.At present, the clinical anesthesia doctor mainly carries out centrifuging by high speed tabletop centrifuge to the micro blood in the kapillary, obtains the Hct value according to Hct definition with vernier caliper measurement, calculating or by the hematocrit reading dial then.Obtaining Hct need divide two steps to realize with two kinds of different equipment at every turn.
Existing high speed tabletop centrifuge profile heaviness, volume is big, and the noise that produces when carrying out high speed centrifugation is big, usually greater than 70dB, has disturbed the staff's who comprises surgical doctor, anesthesia doctor, operating nurse in the operating room operate as normal to a great extent.Simultaneously because the noise decibel is higher, working under this kind environment for a long time has very big influence to staff healthy.
Measure the blood component specific volume with vernier caliper and hematocrit reading dial, when differentiating each adjacent composition interphase, depend on human eye identification, influenced by human factor, the measurement result consistance is bad, and error is big.
Measure the blood component specific volume with existing centrifugal method, whole process is all manual, and the stochastic error of operating process is big, and efficient is low, and the data of measuring need manual record and calculate, and are not easy to statistical study and management.
The utility model content
The purpose of this utility model provides a kind of determinator that can use at the composition of the monitoring of blood at any time specific volume in places such as operating room, and this device can use the blood of trace to measure automatically.
The technical solution that realizes the utility model purpose is a kind of centrifugal blood component specific volume determinator: this device is made up of power-supply system, centrifugal separation system, measuring system and control system four systems.Wherein power-supply system comprises transformer and power panel; Centrifugal separation system is made up of direct current generator, driver, pallet, protective cover; Measuring system is made up of capillary cavity, stepper motor, screw mandrel, photoelectric sensor, measuring system circuit board; Control system is made up of control system circuit board, LCDs, button.
Centrifugal separation system adopts direct current generator, and micro-blood sample is carried out high speed centrifugation, and a plurality of grooves that are radial arrangement from the center are arranged on the centrifugal pallet.The kapillary shutoff that will fill blood sample to be measured when carrying out centrifugally operated is good, is positioned in the groove on the centrifugal pallet, presses steady kapillary protective cover, selects suitable rotating speed and time to carry out centrifugally operated as required.
Kapillary with the micro blood after the centrifugal layering when measuring is positioned in the capillary cavity that has slit, drives screw body with stepper motor photoelectric sensor is scanned along slit.Because the blood component transmittance difference of plug, each layering in the optoelectronic scanning process, according to the order and the amplitude variation of receiving tube received signal, is judged several medium critical surfaces.Because the stepper motor step distance is accurately design, by calculating in every kind of medium, the step number of advancing of motor just can record the length of each fluid column.By the length of the blood component post after the accurate mensuration separation and the length of whole liquid post, calculate the bulking value of this blood component in the blood according to the definition of specific volume.
Adopt single-chip microcomputer that centrifugal rotational speed, centrifugation time, measuring speed are accurately controlled, measurement result is calculated, writes down, edits, put in order, and blood samples of patients composition specific volume variation tendency in the intuitive manner statement surgical procedure such as available figure.
The centrifugal speed that traditional blood component specific volume assay method adopts is 12000 rev/mins, and centrifugation time is 5 minutes, measures the goldstandard of Hct as micromethod.The utility model selects for use direct current generator to carry out centrifuging, centrifugal rotational speed and centrifugation time are adjustable, measurement result and traditional measurement method measurement result have good linear relationship, adopt linear regression statistical analysis method that measurement data is carried out fitting correction, make the final measurement data that shows and traditional measurement result error less than 3%.
Compared with prior art, the utlity model has following significant superior function:
1. adopt up-to-date dc motor technology, overcome common in the past alternating current generator noise, and the complete machine height is reduced, centrifugal radius reduces, and finally makes complete machine small and exquisite, and rotating speed reduces simultaneously, makes operate as normal noise＜60dB;
2. measure the specific volume that calculates each blood component automatically by the mode of optoelectronic scanning, time is short, good reproducibility, the result can divide into groups to carry out long-term storage, editor, put in order, thumbs, and the specific volume that available visual picture shows each blood component of patient in the surgical procedure is trend over time;
3. by the linear regression analysis method complete machine is proofreaied and correct, proofreaied and correct back overall measurement error＜3%.
The utility model has integrated the blood component centrifuging and each blood component specific volume is measured two functions automatically, has improved the practical value of product.Adopt the mode of optoelectronic scanning to measure each blood component specific volume of calculating automatically, by linear regression analysis complete machine is proofreaied and correct, and come the management data result, improved work efficiency greatly, alleviated anesthesia doctor's work load by computing machine.
Description of drawings
Kapillary after the layering of Fig. 1 centrifugal blood;
The centrifugal pallet sectional view of Fig. 2;
Fig. 3 capillary cavity figure;
Fig. 4 measuring system structural representation;
Fig. 5 screw mandrel drives slide block and sensor movement synoptic diagram;
Fig. 6 gear and cog belt driving block and sensor movement synoptic diagram;
Fig. 7 tooth bar driving block and sensor movement synoptic diagram.
Among the figure:
The 1-plug;
The 2-red blood cell;
3-blood plasma;
The 4-air;
The 5-groove;
The centrifugal pallet of 6-;
7-kapillary cavity;
The 8-slit;
The 9-kapillary;
The 10-support;
The 11-photoelectric sensor;
12-capillary cavity;
The 13-position transducer;
The 14-screw mandrel;
The 15-guidepost;
The 16-slide block;
The 17-spring coupling;
The 18-vibroshock;
The 19-stepper motor.
Embodiment
Below in conjunction with Figure of description embodiment of the present utility model is described.
Embodiment 1:
The centrifugal motor of centrifugal separation system is selected dc brushless motor for use, also can select the drag cup motor for use.
Embodiment 2:
In the measuring system structure as shown in Figure 4, with axle concentric be connected of constant pitch screw mandrel 14 with stepper motor 19, photoelectric sensor 11 is installed on the removable slide block 16 that is connected with screw mandrel, the rotation of stepper motor 19 is converted to the rectilinear motion of slide block 16 and photoelectric sensor 11 by screw mandrel 14, makes photoelectric sensor 11 along capillary cavity 12 scannings with narrow gap; Two limit of sports record points up and down at photoelectric sensor 11 are installed two position transducers 13, find out extreme position, conjunction measuring work.
Embodiment 3:
Photoelectric sensor can be selected integrated optocoupler for use, also can select separation emission, receiving trap separately for use.
Embodiment 4:
The drive mechanism of photoelectric sensor can be selected for use: silk pole as shown in Figure 5 drives slide block and sensor movement mode; Gear as shown in Figure 6 and cog belt driving block and sensor movement mode; Multiple structures such as tooth bar driving block as shown in Figure 7 and sensor movement mode.
Determinator described in the utility model can be of wide application, the embodiment and the application that are not limited in this instructions to be mentioned.For the professional in present technique field, any improvement that the utility model embodiment is made or change can not exceed the protection domain of spirit of the present utility model and claims.
Claims (13)
1. centrifugal blood component specific volume determinator, it is characterized in that: this device is made up of power-supply system, centrifugal separation system, measuring system and control system four systems.
2. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: power-supply system comprises transformer and power panel.
3. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: centrifugal separation system is made up of direct current generator, driver, pallet, protective cover.
4. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: measuring system is made up of capillary cavity, stepper motor, screw mandrel, photoelectric sensor, measuring system circuit board.
5. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: control system is made up of control system circuit board, LCDs, button.
6. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: the capillary cavity of measuring system has slit.
7. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: the motor of centrifugal separation system can be selected dc brushless motor for use.
8. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: the motor of centrifugal separation system can be selected the drag cup motor for use.
9. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: photoelectric sensor can be selected integrated optocoupler for use.
10. centrifugal blood component specific volume determinator according to claim 1 is characterized in that: photoelectric sensor can be selected separation emission, receiving trap separately for use.
11. centrifugal blood component specific volume determinator according to claim 1 is characterized in that: the drive mechanism of photoelectric sensor can select for use screw mandrel to drive the mode of motion of slide block and sensor.
12. centrifugal blood component specific volume determinator according to claim 1 is characterized in that: the drive mechanism of photoelectric sensor can select for use gear and profile of tooth to drive the mode of motion of driving block and sensor.
13. centrifugal blood component specific volume determinator according to claim 1, it is characterized in that: the drive mechanism of photoelectric sensor can be selected the mode of motion of tooth bar driving block and sensor for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064216 CN2699285Y (en) | 2004-05-25 | 2004-05-25 | Centrifugal type blood composition specific volume measurement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064216 CN2699285Y (en) | 2004-05-25 | 2004-05-25 | Centrifugal type blood composition specific volume measurement equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699285Y true CN2699285Y (en) | 2005-05-11 |
Family
ID=34777528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064216 Expired - Fee Related CN2699285Y (en) | 2004-05-25 | 2004-05-25 | Centrifugal type blood composition specific volume measurement equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699285Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427920C (en) * | 2004-05-25 | 2008-10-22 | 刘进 | Tester for centrifugal blood integredient specific |
| CN114923444A (en) * | 2022-02-07 | 2022-08-19 | 浙江中烟工业有限责任公司 | Cigarette combustion cone length detection system and method |
-
2004
- 2004-05-25 CN CN 200420064216 patent/CN2699285Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427920C (en) * | 2004-05-25 | 2008-10-22 | 刘进 | Tester for centrifugal blood integredient specific |
| CN114923444A (en) * | 2022-02-07 | 2022-08-19 | 浙江中烟工业有限责任公司 | Cigarette combustion cone length detection system and method |
| CN114923444B (en) * | 2022-02-07 | 2024-06-07 | 浙江中烟工业有限责任公司 | Cigarette combustion cone length detection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102370471B (en) | Quick positioning three-part multipoint pressure electropulsograph | |
| CN102048546B (en) | System for monitoring, collecting and detecting biological information of human blood in real time | |
| CN1312052A (en) | Biological impedance apparatus formed by single-sheet integrated circuit | |
| CN101694431A (en) | Automatic peripheral blood pushing device | |
| CN1915167A (en) | Digital signal process method for light- frequency conversion type pulse blood oxygen instrument | |
| CN1828256A (en) | Portable elevator speed limiter testing device and its collecting signal processing method | |
| CN1565378A (en) | Traditional Chinese pulse-diagnosis instrument | |
| CN1584546A (en) | Tester for centrifugal blood integredient specific | |
| CN2699285Y (en) | Centrifugal type blood composition specific volume measurement equipment | |
| CN206862311U (en) | One kind builds a bridge displacement detection device fixing device | |
| CN106526211B (en) | Sampler and blomelicalbloodgasandelectrolrteanalyzers | |
| CN2855434Y (en) | Full antomatic smart transfusion controller | |
| CN1661617A (en) | Method for automatic diagnosing autonomic nerve | |
| CN2718582Y (en) | Automatic feeding sample device for analysis | |
| CN2620532Y (en) | Intelligent biological organ volume density instrument | |
| CN220084879U (en) | Sample injection device of coagulation analyzer | |
| CN2062448U (en) | Hemoconia automatic testing analyzer | |
| CN208596165U (en) | A kind of blood nursing detecting instrument convenient for adjusting | |
| JPS58215556A (en) | Automatic instrument of blood sedimentation rate | |
| CN1208611C (en) | Hydraulic induction volume densimeter and testing method and application thereof | |
| CN220525790U (en) | Prevent deposiing sewage detection device | |
| CN109540783A (en) | A kind of arch wire bracket confficient of static friction measuring device | |
| CN2665846Y (en) | Electrostatic field three-dimensional experiment instrument | |
| CN2160342Y (en) | Measurer for biological impedance | |
| CN216206566U (en) | PCR experiment room temperature humidity detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050511 Termination date: 20110525 |