CN103575925B - Sample injection needle with automatic detection function - Google Patents
Sample injection needle with automatic detection function Download PDFInfo
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- CN103575925B CN103575925B CN201310564971.4A CN201310564971A CN103575925B CN 103575925 B CN103575925 B CN 103575925B CN 201310564971 A CN201310564971 A CN 201310564971A CN 103575925 B CN103575925 B CN 103575925B
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- sample
- needle
- detection function
- automatic detection
- stationary installation
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 238000002347 injection Methods 0.000 title abstract 5
- 239000007924 injection Substances 0.000 title abstract 5
- 238000004891 communication Methods 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 230000005693 optoelectronics Effects 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 241000168254 Siro Species 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000009530 blood pressure measurement Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 206010020751 Hypersensitivity Diseases 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The invention discloses a sample injection needle with an automatic detection function. The sample injection needle comprises a sample suction device for sucking a sample, a pressure detection device for detecting change of inner pressure of the sample injection needle, a falling detection device for detecting whether a TIP head is mounted or falls off and a control circuit board for implementing pressure measurement and TIP head falling measurement. The sample injection needle with the automatic detection function, which is disclosed by the invention, can accurately implement detection of mounting and accident falling of the TIP head through a connection circuit part and can realize functions of liquid level detection, air bubble detection, liquid leakage detection, clot blocking detection and the like through an air pressure detection sensor.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically a kind of sample needle with automatic detection function.
Background technology
Along with the development of medical science, automatic sample progressively replaces manual application of sample.Current domestic and international market there is many automatic sample equipment, but be only adopt micro pump to extract sample according to the sample volume of testing requirement, in case of sample size deficiency, move liquid head loosen or come off, sample concentration is excessive there is the factors such as grumeleuse time, sample extraction amount will be inaccurate.
Summary of the invention
In order to overcome, traditional sample application efficiency is too low, the inaccurate shortcoming of application of sample amount in the present invention, and increase work efficiency, improve result accuracy, spy has invented the sample needle of this kind of automatic detection function.
The present invention is realized by following measures:
There is a sample needle for automatic detection function, comprise the sample absorbing device drawing sample, the pressure tester detecting the change of sample needle internal pressure, to TIP head whether install with come off detect the pick-up unit that comes off, realize pressure survey and TIP head and to come off the control circuit board measured;
Sample absorbing device comprises: suction needle, insert the TIP head be connected, the flexible pipe be connected with suction needle upper end with suction needle lower end;
Pressure tester comprises: the baroceptor of connecting hose, detected pressures; Described connecting hose one end and suction needle sidepiece inner space, the other end and baroceptor compact siro spinning technology;
The pick-up unit that comes off comprises: the detection block of bulk be enclosed within the sleeve pipe of suction needle outside, detecting for position, upper end fix and lower end be connected with detect block and and detect block spring moving up and down, the position detecting switch detected moved to detection block position; Described detection block is fixed on sleeve pipe top; The lower end of described sleeve pipe contacts with TIP head;
Control circuit board comprises: single-chip microcomputer, with main frame carry out the communication interface of communication, the microcontroller communication interface chip driving communication interface communication and peripheral circuit; Described microcontroller communication interface chip is connected with single-chip microcomputer; Described baroceptor, position detecting switch are connected with stationary installation.
The sample needle with automatic detection function of the present invention, described spring upper end is stationary installation; The Upper vertical of described suction needle is inserted in stationary installation, and is fixedly connected with stationary installation; Described stationary installation sidepiece has via hole, by via hole by connecting hose and suction needle sidepiece inner chamber close communication.
The sample needle with automatic detection function of the present invention, described stationary installation adopts thickness to be the metal aluminum sheet of 1 centimetre, and the left side of panel is long 2.5 centimetres, high 2.0 centimetres; The right side of panel is long 5.5 centimetres, high 5.5 centimetres.
The sample needle with automatic detection function of the present invention, described control circuit board is fixedly installed in the right side of the panel of stationary installation; Described baroceptor is arranged on control circuit board.Described position detecting switch is U-shaped correlation optoelectronic switch, and described U-shaped correlation optoelectronic switch is fixedly installed in the below of stationary installation Left-Hand Panel.
The sample needle with automatic detection function of the present invention, described communication interface is RS485 communication interface.
Of the present invention have the sample needle automatically detecting engineering, and described microcontroller communication interface chip adopts ADM2587E chip; Described single-chip microcomputer adopts C8051F410 single-chip microcomputer.
The sample needle with automatic detection function of the present invention, described connecting hose is connected by hose adapter with suction needle sidepiece inner chamber.
The sample needle with automatic detection function of the present invention, described flexible pipe outer cover has the hose adapter sleeve pipe be connected with external micro pump.
Of the present invention have the sample needle automatically detecting engineering, and described sleeve pipe is nylon sleeve.
Of the present invention have the sample needle automatically detecting engineering, and described spring is cylindrical screw compression reseting spring.
The invention has the beneficial effects as follows: the sample needle with automatic detection function of the present invention, by connecting circuit part, can realize accurately TIP head being installed to the detection filled, surprisingly drop, the functions such as level detection, bubble detection, leakage detection and grumeleuse jam detection can be realized by air pressure detecting sensor.
Accompanying drawing explanation
Fig. 1 represents the structural representation of the sample needle with automatic detection function.
In figure: 1TIP head, 2 suction needles, 3 sleeve pipes, 5 detect block, 6 springs, 7, connecting hose, 8 software joints, 9 hose adapter sleeve pipes, 10 flexible pipes, 11 communication interfaces, 12 microcontroller communication interface chips, 13 single-chip microcomputers, 14 baroceptors, 15 position detecting switchs, 16 control circuit boards, 17 stationary installations.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is explained.
As shown in Figure 1, there is a sample needle for automatic detection function, comprise the sample absorbing device drawing sample, the pressure tester detecting the change of sample needle internal pressure, to TIP 1 whether install with come off detect the pick-up unit that comes off, realize pressure survey and TIP 1 and to come off the control circuit board 16 measured.
Sample absorbing device comprises: suction needle 2, suction needle 2 lower end and TIP 1 insert the flexible pipe 10 being connected, being connected with suction needle 2 upper end, and flexible pipe 10 outside has hose adapter sleeve pipe 9 to be connected with external micro pump by cover, is used for absorption sample.
Pressure tester comprises: the baroceptor 14 of connecting hose 7, detected pressures; Described connecting hose 7 and suction needle 2 sidepiece inner space, the other end and baroceptor 14 compact siro spinning technology; The connection of above-mentioned parts, is used for detecting the change of sample needle 2 internal pressure.
The pick-up unit that comes off comprises: be enclosed within the sleeve pipe 3 of suction needle 2 outside, be fixed on sleeve pipe 3 upper end for the bulk of position mobility detect detection block 5, to be enclosed within suction needle 2 outside, upper end fix and lower end be connected with detect block 5 spring 6, the position detecting switch 15 detected is moved to detection block 5 position; The lower end of described sleeve pipe 3 and TIP 1 contacts; Sleeve pipe 3 uses nylon sleeve, what spring 6 was selected is cylindrical screw compression reseting spring, what position detecting switch 15 adopted is the U-shaped correlation optoelectronic switch that accuracy of detection is very high, detecting block 5 is fixed on nylon sleeve, be enclosed within the outside of suction needle 2 and can move up and down together with cylindrical screw compression reseting spring 6, in this way together with U-shaped correlation optoelectronic switch, complete TIP 1 detection of whether installing or coming off; Spring 6 upper end is stationary installation 17; Stationary installation 17 is inserted on the top of described suction needle 2, and is fixedly connected with stationary installation 17; Described stationary installation 17 sidepiece has via hole, by via hole by connecting hose 7 and suction needle 2 sidepiece inner chamber close communication.
Stationary installation 17 adopts thickness to be the metal aluminum sheet of 1 centimetre, and the left side of aluminium sheet is long 2.5 centimetres, high 2.0 centimetres; The right side of aluminium sheet is long 5.5 centimetres, high 5.5 centimetres.The advantages such as metal aluminum sheet has lightweight, and hardness is high, not yielding.
Control circuit board 16 comprises: single-chip microcomputer 13, with main frame carry out the communication interface 11 of communication, the microcontroller communication interface chip 12 driving communication interface 11 communication and peripheral circuit; Described microcontroller communication interface chip 12 is connected with single-chip microcomputer 11; Described baroceptor 14, position detecting switch 15 are connected with control circuit board 16; Control circuit board 16 is fixedly installed in the right side of the aluminium sheet of stationary installation 17; U-shaped correlation optoelectronic switch is fixedly installed in the below of stationary installation 17.
The RS485 communication interface that communication interface 11 adopts, transfer rate is high, and anti-common mode interference ability is strong, and noise immunity is good, long transmission distance; The C8051F410 single-chip microcomputer that single-chip microcomputer 13 adopts, C8051F410 single-chip microcomputer, except having the general utility functions of single-chip microcomputer 13, has more accurate AD and gathers, can better image data more accurately.
The present invention adopts suction needle 2 and TIP 1 seamless combination, be connected with micro pump by hose adapter sleeve pipe 9, be connected with hypersensitive baroceptor 14 by hose adapter 8, connecting hose 7 simultaneously, by the control of single-chip microcomputer 13, when TIP 1 touches sample liquid level, the pressure of sample needle inside can change, and hypersensitive baroceptor 14 will detect this change, by the AD acquisition function of single-chip microcomputer, realize detecting liquid level.
When sample needle is drawn onto the bubble in sample or TIP 1 installation does not tightly occur having grumeleuse to block sample needle in leakage or sample, the air pressure of sample needle inside will change, through the detection of hypersensitive baroceptor 14, by single-chip microcomputer 14 control signal on control panel, microcontroller communication interface chip 12 sends corresponding alerting signal by communication interface 11 to main frame, thus realizes the functions such as bubble detection, leakage detection and grumeleuse jam detection.
By nylon sleeve 3, detect block 5, cylindrical screw compression reseting spring 6 is connected with control circuit board 16 with the U-shaped switch 15 of photoelectricity correlation, when TIP 1 does not load onto or occur coming off in the process run, nylon sleeve 3, detect block 5 to move down under the effect of cylindrical screw compression reseting spring 6, when moving to certain position, detected by the U-shaped switch 15 of photoelectricity correlation, signal is sent by the single-chip microcomputer 14 on control panel, microcontroller communication interface chip 12 sends corresponding alerting signal by communication interface 11 to main frame, thus realize not installing TIP 1, the alarm surprisingly dropped.
Claims (10)
1. there is a sample needle for automatic detection function, it is characterized in that: comprise the sample absorbing device drawing sample, the pressure tester detecting the change of sample needle internal pressure, to TIP head (1) whether install with come off detect the pick-up unit that comes off, realize pressure survey and TIP head (1) and to come off the control circuit board (16) measured;
Sample absorbing device comprises: suction needle (2), insert the TIP head (1) be connected, the flexible pipe (10) be connected with suction needle (2) upper end with suction needle (2);
Pressure tester comprises: the baroceptor (14) of connecting hose (7), detected pressures; Described connecting hose (7) one end and suction needle (2) sidepiece inner space, the other end and baroceptor (14) compact siro spinning technology;
The pick-up unit that comes off comprises: the detection block (5) of the bulk be enclosed within the outside sleeve pipe (3) of suction needle (2), detecting for position, upper end fix and lower end be connected with detect block (5) and and detect block (5) spring moving up and down (6), the position detecting switch (15) detected moved to detection block (5) position; Described detection block (5) is fixed on sleeve pipe (3) top; The lower end of described sleeve pipe (3) contacts with TIP head (1);
Control circuit board (16) comprising: single-chip microcomputer (13), with main frame carry out the communication interface (11) of communication, the microcontroller communication interface chip (12) driving communication interface (11) communication and peripheral circuit; Described microcontroller communication interface chip (12) is connected with single-chip microcomputer (11); Described baroceptor (14), position detecting switch (15) are connected with stationary installation (17).
2. the sample needle with automatic detection function according to claim 1, is characterized in that: described spring (6) upper end is stationary installation (17); The Upper vertical of described suction needle (2) is inserted in stationary installation (17), and is fixedly connected with stationary installation (17); Described stationary installation (17) sidepiece has via hole, by via hole by connecting hose (7) and suction needle (2) sidepiece inner chamber close communication.
3. the sample needle with automatic detection function according to claim 1 and 2, is characterized in that: described stationary installation (17) adopts thickness to be the metal aluminum sheet of 1 centimetre, and the left side of panel is long 2.5 centimetres, high 2.0 centimetres; The right side of panel is long 5.5 centimetres, high 5.5 centimetres.
4. the sample needle with automatic detection function according to claim 3, is characterized in that: described control circuit board (16) is fixedly installed in the right side of the panel of stationary installation (17); Described baroceptor (14) is arranged on control circuit board (16); Described position detecting switch (15) is U-shaped correlation optoelectronic switch, and described U-shaped correlation optoelectronic switch is fixedly installed in the below of stationary installation (17) Left-Hand Panel.
5. the sample needle with automatic detection function according to claim 1, is characterized in that: described communication interface (11) is RS485 communication interface.
6. the sample needle with automatic detection function according to claim 1, is characterized in that: described microcontroller communication interface chip (12) adopts ADM2587E chip; Described single-chip microcomputer (13) adopts C8051F410 single-chip microcomputer.
7. the sample needle with automatic detection function according to claim 1 and 2, is characterized in that: described connecting hose (7) is connected by hose adapter (8) with suction needle (2) sidepiece inner chamber.
8. the sample needle with automatic detection function according to claim 1, is characterized in that: described flexible pipe (10) outer cover has the hose adapter sleeve pipe (9) be connected with external micro pump.
9. the sample needle with automatic detection function according to claim 1, is characterized in that: described sleeve pipe (3) is nylon sleeve.
10. the sample needle with automatic detection function according to claim 1 and 2, is characterized in that: described spring (6) is cylindrical screw compression reseting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310564971.4A CN103575925B (en) | 2013-11-14 | 2013-11-14 | Sample injection needle with automatic detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310564971.4A CN103575925B (en) | 2013-11-14 | 2013-11-14 | Sample injection needle with automatic detection function |
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| Publication Number | Publication Date |
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| CN103575925A CN103575925A (en) | 2014-02-12 |
| CN103575925B true CN103575925B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310564971.4A Active CN103575925B (en) | 2013-11-14 | 2013-11-14 | Sample injection needle with automatic detection function |
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| Country | Link |
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| CN (1) | CN103575925B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582907B (en) * | 2015-10-15 | 2021-05-18 | 常州福生生物技术有限公司 | Pipette capable of automatically withdrawing suction head |
| CN105223190A (en) * | 2015-11-09 | 2016-01-06 | 苏州怡创医疗器械有限公司 | A kind of sample charging mechanism being applied to chemical luminescence detector |
| CN107860701A (en) * | 2017-12-22 | 2018-03-30 | 广东顺德墨赛生物科技有限公司 | Droplet type sample introduction fluoroscopic examination control system |
| CN108490205A (en) * | 2018-04-10 | 2018-09-04 | 深圳市博辰智控有限公司 | A kind of microwell plate sample adding system and method |
| CN110702465A (en) * | 2019-11-14 | 2020-01-17 | 湖南爱威医疗科技有限公司 | Sample suction and sample application device |
| CN117214453B (en) * | 2023-11-07 | 2024-04-05 | 长春迈克赛德医疗科技有限公司 | Sample suction needle system and sample suction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746680A (en) * | 2004-09-07 | 2006-03-15 | 日立工机株式会社 | Automatic dispenser |
| CN101571119A (en) * | 2009-05-25 | 2009-11-04 | 上海凯实生物科技有限公司 | Micro sample-adding pump |
| CN103026241A (en) * | 2010-07-27 | 2013-04-03 | 株式会社日立高新技术 | Autoanalyzer |
| CN203551579U (en) * | 2013-11-14 | 2014-04-16 | 宋筱亮 | Sampling needle with automatic detection function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3634959B2 (en) * | 1998-03-27 | 2005-03-30 | アロカ株式会社 | Nozzle device |
| JP4320266B2 (en) * | 2004-01-22 | 2009-08-26 | シスメックス株式会社 | Dispensing device and analyzer equipped with the same |
-
2013
- 2013-11-14 CN CN201310564971.4A patent/CN103575925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746680A (en) * | 2004-09-07 | 2006-03-15 | 日立工机株式会社 | Automatic dispenser |
| CN101571119A (en) * | 2009-05-25 | 2009-11-04 | 上海凯实生物科技有限公司 | Micro sample-adding pump |
| CN103026241A (en) * | 2010-07-27 | 2013-04-03 | 株式会社日立高新技术 | Autoanalyzer |
| CN203551579U (en) * | 2013-11-14 | 2014-04-16 | 宋筱亮 | Sampling needle with automatic detection function |
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| CN103575925A (en) | 2014-02-12 |
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Owner name: SHANDONG MAITIAN BIOLOGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SONG XIAOLIANG Effective date: 20150624 Free format text: FORMER OWNER: DING FEN Effective date: 20150624 |
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Effective date of registration: 20150624 Address after: 250000, No. 18-21, wax Hill Road, Shizhong District, Shandong City, Ji'nan Province Patentee after: SHANDONG MAITIAN BIOLOGICAL TECHNOLOGY CO.,LTD. Address before: 250000, No. 2, unit 1, building 402, Jiayuan 14, 27 new village, Shizhong District, Shizhong District, Shandong, Ji'nan Patentee before: Song Xiaoliang Patentee before: Ding Fen |
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Denomination of invention: A Sampling Probe with Automatic Detection Function Effective date of registration: 20221009 Granted publication date: 20150401 Pledgee: Industrial Bank Co.,Ltd. Shanghai Branch Pledgor: SHANDONG MAITIAN BIOLOGICAL TECHNOLOGY CO.,LTD. Registration number: Y2022310000280 |
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Date of cancellation: 20231017 Granted publication date: 20150401 Pledgee: Industrial Bank Co.,Ltd. Shanghai Branch Pledgor: Shanghai Wickham Biomedical Technology Co.,Ltd.|SHANDONG MAITIAN BIOLOGICAL TECHNOLOGY CO.,LTD. Registration number: Y2022310000280 |
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Denomination of invention: A sampling probe with automatic detection function Effective date of registration: 20231030 Granted publication date: 20150401 Pledgee: Industrial Bank Co.,Ltd. Shanghai Jinshan Branch Pledgor: Shanghai Wickham Biomedical Technology Co.,Ltd.|SHANDONG MAITIAN BIOLOGICAL TECHNOLOGY CO.,LTD. Registration number: Y2023980062901 |
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