CN111579345A - Blood collection tube mixing device and control method thereof - Google Patents
Blood collection tube mixing device and control method thereof Download PDFInfo
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- CN111579345A CN111579345A CN202010309602.0A CN202010309602A CN111579345A CN 111579345 A CN111579345 A CN 111579345A CN 202010309602 A CN202010309602 A CN 202010309602A CN 111579345 A CN111579345 A CN 111579345A
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- blood collection
- collection tube
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- weight coefficient
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- 239000008280 blood Substances 0.000 title claims abstract description 97
- 210000004369 blood Anatomy 0.000 title claims abstract description 97
- 238000002156 mixing Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 11
- 238000010241 blood sampling Methods 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 19
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 10
- 229960002897 heparin Drugs 0.000 claims description 10
- 229920000669 heparin Polymers 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 206010018852 Haematoma Diseases 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 229940127219 anticoagulant drug Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/201—Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/70—Drives therefor, e.g. crank mechanisms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a blood collection tube uniformly mixing device, which comprises: a base; a bracket rotatably supported on the base; a drive gear disposed on the bracket; an output shaft of the driving motor is connected with the driving gear and can drive the driving gear to rotate so as to drive the support to swing around the base; the invention provides a blood collection tube mixing device, which is characterized in that a blood collection tube fixing frame is detachably connected with a support and used for clamping a blood collection tube and can swing around a base along with the support. The invention also provides a control method of the blood collection tube mixing device, which can obtain the mixing time of the blood collection tube fixing frame according to the dead weight coefficient and the constant-speed swinging frequency of the blood collection tube, realize the fine adjustment of the shaking time and improve the mixing uniformity of the blood and the reserved reagent.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a blood collection tube uniformly mixing device and a control method of the blood collection tube uniformly mixing device.
Background
In medical blood inspection, various types of vacuum blood collection tubes are generally required to be uniformly mixed after blood collection is finished, so that blood and reagents reserved in the blood collection tubes are uniformly mixed, the efficiency of the reagents is fully exerted, and various chemical reactions are promoted. The following disadvantages exist in the actual blending operation process:
1. the method of incorrectly mixing the blood samples causes inaccurate test results, and after the nurses collect the blood and inject the blood into the container, the nurses need to manually carry out gentle swinging of the vacuum blood collection tube for 8-10 times at 180 degrees to make the blood and the anticoagulant mixed evenly, which lasts for about 2 minutes. When the nurse is busy, the nurse often shakes too fast back and forth, and blood is hemolyzed; or the shaking amplitude is small, blood coagulates, and thus the inspection result is influenced.
2. Repeated collection increases the pain of the patient, increases the workload of nurses, has incorrect examination results, and directly influences the judgment and the treatment of the treatment effect. Therefore, in order to solve the above problems, nurses may adopt a method of collecting blood samples again to compensate, which increases the pain of patients and the workload of nurses.
3. The patient can't cooperate the nurse to carry out timely effective pressing of blood sampling position after children's blood sampling, and extravasated blood or hematoma appear in the part, cause the blood sample to gather complication, and patient can't cooperate the nurse to carry out timely effective pressing of blood sampling position after children's blood sampling, and extravasated blood or hematoma appear in the part, cause the blood sample to gather complication.
4. The temporary storage container is used for temporary storage after blood sampling is lacked clinically.
Patent document with publication number CN104713765A discloses a device for mixing vacuum test tube blood, including crisscross pull-up beam barrel and the beam barrel down who sets up to and the belt, the belt is cyclic annular and wears to locate between pull-up beam barrel and the beam barrel down, forms a plurality of V-arrangement grooves that supply to place the blood collection tube, and the vacuum test tube is placed in the V-arrangement inslot, rotates through the friction with the belt, realizes the purpose of blood mixing. This scheme makes the reagent misce bene of reserving in blood and the heparin tube through rotating vacuum blood sampling, but, the better mixing mode is to rock vacuum blood sampling tube, and above-mentioned device can't make the reagent misce bene of reserving in blood and the heparin tube through rocking vacuum blood sampling tube.
Disclosure of Invention
The invention provides a blood collection tube uniformly mixing device, which is characterized in that a blood collection tube is clamped by a blood collection tube fixing frame, and the fixing frame is driven by a driving motor to rotate around a base along with a support, so that the blood collection tube swings at a constant speed.
The invention also provides a control method of the blood collection tube mixing device, which can obtain the mixing time of the blood collection tube fixing frame according to the dead weight coefficient and the constant-speed swinging frequency of the blood collection tube, realize the fine adjustment of the shaking time and improve the mixing uniformity of the blood and the reserved reagent.
The technical scheme provided by the invention is as follows:
the utility model provides a heparin tube mixing device, includes:
a base;
a bracket rotatably supported on the base;
a drive gear disposed on the bracket;
an output shaft of the driving motor is connected with the driving gear and can drive the driving gear to rotate so as to drive the support to swing around the base;
the heparin tube mount, it can dismantle the connection the support can follow the support winds the base sways.
Preferably, the device further comprises a reduction gear which is sleeved on the output shaft of the driving motor and is meshed with the driving gear.
Preferably, the blood collection tube holder includes:
a rack body, the surface of which is provided with a plurality of blood sampling tube placing grooves distributed in an array;
and a plurality of fixing clips which are arranged in the placing groove and can clamp the blood sampling tubes.
Preferably, the fixing clip includes:
the bottom plate is an elastic plate and has a gap with the bottom of the placing groove;
one end of each side plate is integrally connected with the two sides of the bottom plate;
the two overturning plates are respectively arranged at the other ends of the side plates;
the blood collection tube is abutted against the bottom plate, the side plates are stressed, the two turnover plates can be abutted against each other, and the blood collection tube is fixed.
Preferably, the bracket includes:
the connecting plate is provided with a plurality of through connecting holes and is used for connecting the blood collection tube fixing frame;
and the two extension plates are respectively and integrally connected with the connecting plate.
Preferably, the connecting plate surface has lightening holes.
Preferably, still include the spacing, it sets up respectively at base both ends, can restrict the swing position of support.
Preferably, the method further comprises the following steps:
a counter which is arranged at one end of the blood sampling tube fixing frame and can measure the shaking times of the blood sampling tube fixing frame;
and the controller is respectively connected with the counter and the driving motor, can read the shaking times of the counter and controls the driving motor to be switched on or switched off.
A control method of a blood collection tube uniformly mixing device is characterized by comprising the following steps:
calculating the self-weight coefficient of the blood collection tube according to the self-parameters of the blood collection tube;
setting the rotating speed of the driving motor, and according to the swinging frequency of the blood collection tube fixing frame around the base;
comparing the self-weight coefficient with a preset self-weight coefficient to obtain a self-weight coefficient deviation signal, and comparing the swing frequency with a preset swing frequency to obtain a swing frequency deviation signal;
carrying out differential calculation on the gravity coefficient deviation signal to obtain a gravity coefficient deviation change rate signal, and carrying out differential calculation on the swing frequency deviation signal to obtain a swing frequency change rate signal;
and amplifying the self-weight coefficient deviation change rate signal and the swing frequency change rate signal, inputting the amplified signals into a two-dimensional fuzzy controller, and outputting the amplified signals as the shaking time.
Preferably, the dead weight coefficient calculation formula of the blood collection tube is as follows:
wherein G isiM is the self-weight coefficient of the blood collection tube, g is the gravity acceleration, ViTo take the volume of the blood vessel, VmReserving the volume of the reagent in the blood sampling tube.
Advantageous effects
The invention provides a blood collection tube uniformly mixing device, which is characterized in that a blood collection tube is clamped by a blood collection tube fixing frame, and the fixing frame is driven by a driving motor to rotate around a base along with a support, so that the blood collection tube swings at a constant speed.
The invention also provides a control method of the blood collection tube mixing device, which can obtain the mixing time of the blood collection tube fixing frame according to the dead weight coefficient and the constant-speed swinging frequency of the blood collection tube, realize the fine adjustment of the shaking time and improve the mixing uniformity of the blood and the reserved reagent.
Drawings
Fig. 1 is a schematic structural view of a blood collection tube mixing device according to the present invention.
Fig. 2 is a schematic view of the connection between the base and the bracket according to the present invention.
Fig. 3 is a schematic structural view of the blood collection tube holder according to the present invention.
Fig. 4 is a schematic view of the connection between the placement groove and the fixing bracket clip according to the present invention.
Fig. 5 is a schematic structural view of the stent of the present invention.
Fig. 6 is a schematic view of the installation of the counter and the count button according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1-2, the blood collection tube mixing device provided by the present invention comprises: base 110, support 120, drive gear 130, driving motor 140 and heparin tube mount 150.
Wherein, the support 120 is rotatably supported on the base 110 by a bearing 121 a: the driving gear 130 is provided on the bracket 120; an output shaft of the driving motor 140 is connected to the driving gear 130, and can drive the driving gear 130 to rotate, so as to drive the bracket 120 to swing around the base 110; the blood collection tube holder 150 is detachably connected to the holder 120, and can swing around the base 110 along with the holder 120. As a preference, further comprising: and the reduction gear 131 is sleeved on the output shaft of the driving motor 140, and the reduction gear 131 is meshed with the driving gear 130.
In another embodiment, the speed ratio of the reduction gear 131 to the drive gear 130 is: 18: 117.
as shown in fig. 3, the blood collection tube holder 150 includes: a rack body 151, a cartridge placing groove 152, and a fixing clip 153.
A plurality of cartridge accommodating grooves 152 distributed in an array are formed on the surface of the holder body 151; the plurality of fixing clips 153 are provided in the placement groove and can hold the blood collection tube.
As shown in fig. 4, the fixing clip 153 includes: a bottom plate 153a, a side plate 153b and a flip plate 153 c.
The bottom plate 153a is an elastic plate and has a gap with the bottom of the placing groove 152; one end of the two side plates 153b is integrally connected with two sides of the bottom plate 153 a; the two turnover plates 153c are respectively arranged at the other ends of the side plates 153 b;
wherein, the heparin tube supports and leans on bottom plate 153a, can make curb plate 153b atress, and then makes two upset boards 153c support each other and lean on, fixes the heparin tube.
As shown in fig. 5, the bracket 120 includes: a connecting plate 121 and an extension plate 122.
The connecting plate 121 has a plurality of through connecting holes for connecting the blood collection tube holder 150; the two extension plates 122 are integrally connected to the connection plates 122, respectively.
Preferably, the connecting plate 122 has lightening holes on the surface.
In another embodiment, the base 110 has two ends with limiting frames 160 respectively disposed at two ends of the base 110, which can limit the swing position of the bracket 120.
A control method of a blood collection tube uniformly mixing device is characterized by comprising the following steps:
calculating the self-weight coefficient of the blood collection tube according to the self-parameters of the blood collection tube;
the dead weight coefficient calculation formula of the blood collection tube is as follows:
wherein G isiM is the self-weight coefficient of the blood collection tube, g is the gravity acceleration, ViTo take the volume of the blood vessel, VmReserving reagent volume in blood sampling tube
Setting the rotating speed of a driving motor, and according to the swinging frequency of the blood collection tube fixing frame around the base;
comparing the self-weight coefficient with a preset self-weight coefficient to obtain a self-weight coefficient deviation signal, and comparing the swing frequency with a preset swing frequency to obtain a swing frequency deviation signal;
carrying out differential calculation on the gravity coefficient deviation signal to obtain a gravity coefficient deviation change rate signal, and carrying out differential calculation on the swing frequency deviation signal to obtain a swing frequency change rate signal;
and amplifying the self-weight coefficient deviation change rate signal and the swing frequency change rate signal, inputting the amplified signals into a two-dimensional fuzzy controller, and outputting the amplified signals as the shaking time.
The self-weight coefficient signal GiAnd a wobble frequency signal ηiInput to a fuzzy controller.
Wherein G isi、ηiRespectively is [70,150 ]]，[0,40]A self-weight coefficient signal GiWith a predetermined weight coefficient signal
Comparing to obtain a self-weight coefficient deviation signal delta GiWobble frequency signal ηiWith a predetermined wobble frequency signal
Comparing to obtain a wobble frequency deviation signal delta ηi；
Deviation signal delta G of self-weight coefficient deviation signaliObtaining the self-weight coefficient change rate signal dG through differential calculationiThe wobble frequency deviation signal Δ ηiThe wobble frequency rate of change signal d η is obtained by differential calculationi；
Gi、ηiAre all { -6, -5, -4, -3, -2, -1, 0,1, 2, 3, 4, 5, 6}
Then the scale factor k1＝6/80，k2＝6/40
Defining fuzzy subsets and membership functions
The gravity coefficient change rate signal dGiSeven fuzzy states are divided: PB (positive big), PM (positive middle), PS (positive small), 0 (zero), NS (negative small), NM (negative middle) and NB (negative big), and the self weight coefficient change rate signal dG is obtained by combining experienceiAs shown in table 1.
TABLE 1 signal dG of rate of change of self-weight coefficientiTable of membership functions
| dGi | -6 | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5 |
| PB | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| PM | 0 | 0 | 0 | 0 | 0.2 | 0.4 | 0 | 0 | 0.2 | 0 | 0 | 0 |
| PS | 0 | 0 | 0 | 0.2 | 0.4 | 0.6 | 0 | 0 | 0.4 | 0.2 | 0 | 0 |
| 0 | 0 | 0 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 | 0 | 0.6 | 0.4 | 0.4 | 0 |
| NS | 0.2 | 0.4 | 0.4 | 0.8 | 0.8 | 0 | 0 | 0 | 0.8 | 0.8 | 0.8 | 0.2 |
| NM | 0.6 | 0.8 | 0.8 | 0 | 0 | 0 | 0.6 | 0 | 0 | 0 | 1.0 | 0.6 |
| NB | 0.2 | 0.4 | 0.4 | 0.8 | 0.8 | 1.0 | 1.0 | 1.0 | 0.8 | 0.8 | 0.8 | 0.2 |
Signal d η for changing rate of wobble frequencyiDividing into seven fuzzy states of PB (positive big), PM (middle), PS (positive small), 0 (zero), NS (negative small), NM (negative middle) and NB (negative big), and obtaining the wobble frequency change rate signal d η by combining experienceiAs shown in table 2.
TABLE 2 rocking frequency rate of change signalNumber d ηiTable of membership functions
The fuzzy inference process is acquired by executing complex matrix operation, the calculated amount is very large, the on-line inference is difficult to meet the real-time requirement of a control system, the fuzzy inference operation is carried out by adopting a table look-up method, the fuzzy inference decision adopts a two-input single-output mode, the preliminary control rule of the fuzzy controller can be summarized through experience, and the fuzzy controller carries out defuzzification on an output signal according to the obtained fuzzy value to obtain the shaking time T.
Table 3 is a fuzzy control rule table
The fuzzy set of shaking times T is: z ═ D0，D1，D2，D3，D4，D5}，D0Connecting the valve body for closing the conduit, D1As the first shaking time, D2For the second shaking time, D3As a third shaking time, D4To a fourth shaking time, D5Is a fifth shaking time; wherein the shaking time is D1The time corresponding to the shaking time is minimum, and the shaking time is D5The corresponding shaking time is the largest.
In another embodiment, further comprising: the counter is arranged at one end of the blood collection tube fixing frame 150 and can measure the shaking times of the blood collection tube fixing frame 150; the controller is connected to the counter and the driving motor, respectively, and is capable of reading the shaking times of the counter and controlling the driving motor 140 to be turned on or off. Preferably, the controller includes a manual control part and a fuzzy control part, wherein the manual control part realizes counting setting through a counting button disposed at one end of the blood collection tube holder 150, the controller controls the driving motor 140 to be turned off when the counter is consistent with the counting time set by the counting button, and the fuzzy control part controls the driving motor 140 to be turned off through shaking time output by the fuzzy controller, so as to realize fine adjustment of the shaking time.
As shown in fig. 6, it is preferable that the counter has a display screen 201, and the count buttons include a count-up button "+" 202 and a count-down button "-" 203 provided on both sides of the display screen 201, respectively.
The invention provides a blood collection tube uniformly mixing device, which is characterized in that a blood collection tube is clamped by a blood collection tube fixing frame, and the fixing frame is driven by a driving motor to rotate around a base along with a support, so that the blood collection tube swings at a constant speed.
The invention also provides a control method of the blood collection tube mixing device, which can obtain the mixing time of the blood collection tube fixing frame according to the dead weight coefficient and the constant-speed swinging frequency of the blood collection tube, realize the fine adjustment of the shaking time and improve the mixing uniformity of the blood and the reserved reagent.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a heparin tube mixing device which characterized in that includes:
a base;
a bracket rotatably supported on the base;
a drive gear disposed on the bracket;
an output shaft of the driving motor is connected with the driving gear and can drive the driving gear to rotate so as to drive the support to swing around the base;
the heparin tube mount, it can dismantle the connection the support for the centre gripping heparin tube, and can follow the support winds the base sways.
2. The blood collection tube uniformly mixing device according to claim 1, further comprising a reduction gear which is sleeved on the output shaft of the driving motor and is meshed with the driving gear.
3. The mixing device of claim 1 or 2, wherein the cartridge holder comprises:
a rack body, the surface of which is provided with a plurality of blood sampling tube placing grooves distributed in an array;
and a plurality of fixing clips which are arranged in the placing groove and can clamp the blood sampling tubes.
4. The mixing device of claim 3, wherein the retaining clip comprises:
the bottom plate is an elastic plate and has a gap with the bottom of the placing groove;
one end of each side plate is integrally connected with the two sides of the bottom plate;
the two overturning plates are respectively arranged at the other ends of the side plates;
the blood collection tube is abutted against the bottom plate, the side plates are stressed, the two turnover plates can be abutted against each other, and the blood collection tube is fixed.
5. The mixing device of claim 4, wherein the support comprises:
the connecting plate is provided with a plurality of through connecting holes and is used for connecting the blood collection tube fixing frame;
and the two extension plates are respectively and integrally connected with the connecting plate.
6. The mixing device of claim 5, wherein the surface of the connecting plate has lightening holes.
7. The blood collection tube uniformly mixing device according to any one of claims 1-2 and 4-6, further comprising limiting frames respectively arranged at two ends of the base and capable of limiting the swing position of the support.
8. The blood collection tube blending device of claim 7, further comprising:
a counter which is arranged at one end of the blood sampling tube fixing frame and can measure the shaking times of the blood sampling tube fixing frame;
and the controller is respectively connected with the counter and the driving motor, can read the shaking times of the counter and controls the driving motor to be switched on or switched off.
9. A method for controlling a blood collection tube mixing device according to any one of claims 1 to 8, comprising:
calculating the self-weight coefficient of the blood collection tube according to the self-parameters of the blood collection tube;
setting the rotating speed of the driving motor, and shaking the frequency according to the swinging of the blood collection tube fixing frame around the base;
comparing the self-weight coefficient with a preset self-weight coefficient to obtain a self-weight coefficient deviation signal, and comparing the rotary swing frequency with a preset swing frequency to obtain a swing frequency deviation signal;
carrying out differential calculation on the gravity coefficient deviation signal to obtain a gravity coefficient deviation change rate signal, and carrying out differential calculation on the swing frequency deviation signal to obtain a swing frequency change rate signal;
and amplifying the self-weight coefficient deviation change rate signal and the swing frequency change rate signal, inputting the amplified signals into a two-dimensional fuzzy controller, and outputting the amplified signals as the shaking time.
10. The method for controlling the mixing device of the blood collection tube according to claim 9, wherein the dead weight coefficient calculation formula of the blood collection tube is:
wherein,
the dead weight coefficient of the blood sampling tube is,
in order to obtain the quality of the blood sampling tube,
in order to be the acceleration of the gravity,
in order to obtain the volume of the blood collection tube,
reserving the volume of the reagent in the blood sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309602.0A CN111579345A (en) | 2020-04-20 | 2020-04-20 | Blood collection tube mixing device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010309602.0A CN111579345A (en) | 2020-04-20 | 2020-04-20 | Blood collection tube mixing device and control method thereof |
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| Publication Number | Publication Date |
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| CN111579345A true CN111579345A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010309602.0A Withdrawn CN111579345A (en) | 2020-04-20 | 2020-04-20 | Blood collection tube mixing device and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112772822A (en) * | 2020-12-31 | 2021-05-11 | 江汉大学 | Chain transmission type dough ironing device and control method thereof |
| CN117815994A (en) * | 2024-02-03 | 2024-04-05 | 山东化氏科技有限公司 | Oscillator for microbiological test |
| CN117815994B (en) * | 2024-02-03 | 2024-07-26 | 山东化氏科技有限公司 | Oscillator for microbiological test |
-
2020
- 2020-04-20 CN CN202010309602.0A patent/CN111579345A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112772822A (en) * | 2020-12-31 | 2021-05-11 | 江汉大学 | Chain transmission type dough ironing device and control method thereof |
| CN117815994A (en) * | 2024-02-03 | 2024-04-05 | 山东化氏科技有限公司 | Oscillator for microbiological test |
| CN117815994B (en) * | 2024-02-03 | 2024-07-26 | 山东化氏科技有限公司 | Oscillator for microbiological test |
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