CN113551945A - Automatic vacuum blood collection tube puncturing device capable of automatically sensing liquid level - Google Patents
Automatic vacuum blood collection tube puncturing device capable of automatically sensing liquid level Download PDFInfo
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- CN113551945A CN113551945A CN202010331795.XA CN202010331795A CN113551945A CN 113551945 A CN113551945 A CN 113551945A CN 202010331795 A CN202010331795 A CN 202010331795A CN 113551945 A CN113551945 A CN 113551945A
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- 239000008280 blood Substances 0.000 title claims abstract description 56
- 210000004369 blood Anatomy 0.000 title claims abstract description 56
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 238000005070 sampling Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims 1
- 239000000523 sample Substances 0.000 abstract description 75
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010241 blood sampling Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 2
- 238000003759 clinical diagnosis Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 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 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an automatic puncturing device of a vacuum blood collection tube, which automatically senses liquid level, and comprises a test tube rack, wherein the inner surface of the test tube rack is sleeved with the vacuum blood collection tube, the test tube rack is assembled on the upper surface of a detection equipment bracket, the side surface of the test tube rack is assembled with a lifting type top puncturing device of the vacuum blood collection tube, the rear end of the test tube rack is assembled with a sample collecting device which can realize sampling and cleaning through rotation and is used for collecting blood samples, the device is provided with a liquid level sensing and automatic puncturing tube cap device, a tube cap puncturing needle and a sample needle are respectively designed in a separated mode, after the automatic puncturing needle punctures a tube cap, the sample needle starts to probe the surface of the blood sample in the tube, the sample needle automatically senses the blood sample, the sample needle stops probing at random to begin to take blood samples, after the sampling is completed, the puncturing needle is also lifted, the sample needle rotates to a designated position to spit out the sample, and then rotates to a sample needle cleaning pool to clean, the problem of the unable auto-induction blood sample liquid level of detection medical instrument of effectual solution current vacuum test tube.
Description
Technical Field
The invention relates to the technical field of clinical diagnosis medical instruments of vacuum blood collection tubes, in particular to an automatic puncturing device of a vacuum blood collection tube, which can automatically sense the liquid level.
Background
The vacuum blood collection tube is a main blood sample carrier for clinical diagnosis in hospitals, and generally a tube cap of the vacuum blood collection tube needs to be pulled off before an upper medical analysis instrument for reuse, so that the vacuum blood collection tube is inconvenient, and the sample is easy to splash out to bring risks to operators or other samples. If do not have the direct blood sample of taking with sample pjncture needle puncture tube cap of liquid level response, because the actual height of blood in each blood sampling pipe can't be foreseen, then the degree of depth of sampling needle point is unified fixed depth, and need all insert enough deeply in every blood sample, increase the blood sample that the sample needle outside is infected with very easily like this, the sample acupuncture is dark back, the needle outer wall is infected with highly too big of blood sample, when washing the high not enough of rivers when wasing the needle outer wall, blood sample cross contamination can take place, seriously influence the interference of sample test result degree of accuracy, in view of above problem, especially, provide a vacuum test tube automatic puncture device of auto-induction liquid level.
Disclosure of Invention
The invention aims to provide an automatic puncturing device of a vacuum blood collection tube, which can automatically sense the liquid level, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic piercing depth of vacuum test tube of auto-induction liquid level, includes the test-tube rack, the vacuum test tube is placed to the internal surface hole groove of test-tube rack, the test-tube rack assembly is at check out test set support upper surface, the side surface of test-tube rack is equipped with the top piercing depth of the vacuum test tube of over-and-under type, the rear end of test-tube rack is equipped with the sample collection device who is used for gathering the blood sample through rotating the realization sampling and abluent.
Preferably, the puncturing device comprises a screw mechanism, a tube cap puncturing needle is screwed on the outer surface of the screw mechanism, a guide rail for assisting sliding positioning is assembled at the right side end of the tube cap puncturing needle, a cap pressing sheet for preventing the vacuum blood collection tube from being lifted is assembled right below the puncturing needle, and the right side end of the cap pressing sheet is assembled on the upper surface of the equipment rack through a fixing sheet.
Preferably, the collection device comprises a sample needle for sampling and a sample needle cleaning pool for cleaning the sample needle, wherein the top end of the sample needle is provided with a liquid level sensor, and the rear end of the liquid level sensor is provided with a rotating arm.
Preferably, the bottom end of the screw mechanism penetrates through the upper surface of the equipment rack and is assembled at the output end of the corresponding driving motor.
Preferably, the guide rail comprises a sliding groove on the outer side and a sliding rod assembled in the sliding groove, and the sliding rod is sleeved on the inner surface of a sliding hole of a support arm at the right end of the tube cap puncture needle.
Preferably, the right end of the cap pressing sheet is connected with the fixing sheet through a bolt, a round hole is formed in the upper surface of the cap pressing sheet, and the circle center of the round hole corresponds to the axis of the puncture needle.
Preferably, the bottom end of the sample needle cleaning pool is connected to a cleaning water pump inside the device through a conduit.
Preferably, the bottom of swinging boom is equipped with slewing mechanism, the vertical distance of the rotatory axle center of swinging boom to the sample needle axle center equals the rotatory axle center of swinging boom to the axle center vertical distance of sample needle washing pond.
Preferably, the sampling device and the puncturing device are lifted synchronously.
Compared with the prior art, the invention has the beneficial effects that: the automatic puncturing device realizes the automatic puncturing function of the vacuum blood collection tube with the automatic liquid level sensing function, has great popularization value in the aspect of detecting a whole blood sample by a clinical diagnostic instrument, can effectively solve the problems of automatic puncturing of a tube cap, high-precision micro-sampling and easy passive pollution of the blood sample when the blood sample is automatically extracted, and provides powerful support for the convenience and the accuracy of subsequent diagnosis results.
1. The instrument operation is more convenient, because uses sample needle and pipe cap pjncture needle cooperation, has solved in the past or has pulled out the pipe cap earlier and then samples, perhaps the pipe cap pjncture needle is direct to be punctured and is used the predilution after sampling, simplifies the flow, reduces manual intervention.
2. The sampling precision is higher, and sample needle tubing and needle point are thinner, and the sampling precision is high, but can't puncture the heparin tube cap. The tube cap puncture needle tube and the needle tip part are thick, can puncture the tube cap, can sample by using the tube cap puncture needle tube and has low precision; the device firstly inserts the tube cap puncture needle and then samples by using the sample needle with a thinner tube diameter, thereby solving the problems of puncture and high-precision sampling.
3. Reduce passive pollution between different blood samples, this device has liquid level auto-induction function, can stop when the sample needle contacts the suitable distance in blood sample surface promptly and visit down, need not deepen inside the blood sample, and the interior outer wall self-cleaning of the follow-up sample needle of being convenient for avoids passive pollution between different blood samples.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. liquid level inductor, 2, sample needle, 3, sample needle washing pond, 4, vacuum test tube, 5, swinging boom, 6, tube cap pjncture needle, 7, screw mechanism, 8, guide rail, 9, press cap piece, 10, test-tube rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an automatic aspiration device of vacuum test tube of auto-induction liquid level, including test-tube rack 10 (test-tube rack 10 can be disc type test-tube rack or rail mounted test-tube rack at the in-process of using), vacuum test tube 4 has been put in the round hole interpolation of test-tube rack 10 upper surface, the test-tube rack 10 assembles at check out test set support upper surface, the side surface of test-tube rack 10 is equipped with the top piercing depth of vacuum test tube 4 of over-and-under type, the rear end of test-tube rack 10 is equipped with realizes sampling and abluent sample collection device who is used for gathering the blood sample through rotating.
Specifically, the puncture device comprises a screw mechanism 7, a tube cap puncture needle 6 is screwed on the outer surface of the screw mechanism 7, a guide rail 8 for assisting sliding positioning is assembled at the right side end of the tube cap puncture needle 6, a cap pressing sheet 9 for preventing the vacuum blood collection tube 4 from being lifted is assembled right below the puncture needle, and the right side end of the cap pressing sheet 9 is assembled on the upper surface of the equipment rack through a fixing sheet.
Specifically, the collecting device comprises a sample needle 2 for sampling and a sample needle cleaning pool 3 for cleaning the sample needle 2, wherein the top end of the sample needle 2 is provided with a liquid level sensor 1, and the rear end of the liquid level sensor 1 is provided with a rotating arm 5;
the liquid level sensor 1 is internally equipped with a liquid level sensing circuit board: the surface of the blood liquid can be automatically detected by adopting a capacitive sensing design, and when the surface of the blood liquid is detected, the liquid level sensor sends a stop signal to a control circuit board of a stepping motor of a sample injection arm, so that the downward detection is stopped as soon as a sample injection needle contacts the surface of the blood, the automatic detection of the surface of the blood is realized, the downward detection depth of the sample needle is controlled, and the passive pollution of the blood sample can be obviously avoided by combining a sample needle cleaning pool;
the sample needle 2 is matched with the drawing motion of the trace ceramic plunger pump to drive the ceramic pump core to form negative pressure, so that high-precision sample introduction is realized.
Specifically, the bottom end of the screw mechanism 7 penetrates through the upper surface of the equipment rack and is assembled at the output end of the corresponding driving motor.
Specifically, the guide rail 8 comprises a sliding groove on the outer side and a sliding rod assembled in the sliding groove, and the sliding rod is sleeved on the inner surface of a sliding hole of a right end support arm of the tube cap puncture needle 6.
Specifically, the right end of the cap pressing piece 9 is connected with the fixing piece through a bolt, a round hole is formed in the upper surface of the cap pressing piece 9, the circle center of the round hole corresponds to the axis of the puncture needle, and when the puncture needle is lifted up, the blood sampling tube is used for pressing the blood sampling tube in order to prevent the blood sampling tube from being brought up by the puncture needle.
Specifically, the bottom end of the sample needle washing bath 3 is connected to a washing water pump inside the apparatus through a pipe.
Specifically, the bottom of swinging boom 5 is equipped with slewing mechanism, and the vertical distance of the rotatory axle center of swinging boom 5 to 2 axle centers of sample needle equals the rotatory axle center of swinging boom 5 to the axle center vertical distance of sample needle washing pond 3, and swinging boom 5 passes through step motor, hold-in range, opto-coupler, spline or guide rail and realizes the autogiration and the lift of sample needle.
Specifically, the sampling device and the puncture device are lifted and lowered synchronously.
The working principle is as follows: as shown in the above figure, when the blood sampling tube with puncture comes under the tube cap puncture needle 6, under the vertical power provided by the screw mechanism 7 and the guide rail 8, the tube cap puncture needle 6 punctures the tube cap vertically downwards and stops, at this time, the rotating arm 5 rotates the sample needle 2, after the sample needle 2 reaches right above the puncture needle, the sample needle vertically downwards probes to the blood upper side of the blood sampling tube through the pore in the middle of the puncture needle, when the sample needle contacts the blood sample surface, the liquid level sensing circuit board automatically senses the blood surface, the sample needle stops probing, and the original path returns after the blood sample is extracted. And (3) discharging the sample after the sample needle rotates to the designated position, then rotating to the sample needle cleaning pool for cleaning, and starting to puncture and sample the next vacuum blood collection tube after the inner wall and the outer wall of the sample needle are cleaned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an automatic piercing depth of vacuum test tube of auto-induction liquid level, includes test-tube rack (10), its characterized in that: the internal surface of test-tube rack (10) has cup jointed vacuum test tube (4), test-tube rack (10) assembly is at check out test set support upper surface, the side surface of test-tube rack (10) is equipped with the top piercing depth of the vacuum test tube (4) of over-and-under type, the rear end of test-tube rack (10) is equipped with the sample collection device who is used for gathering the blood sample that realizes sampling and abluent through rotating.
2. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 1, wherein: the utility model discloses a vacuum blood collection tube, including piercing depth, piercing depth includes screw mechanism (7), the surface spiro union of screw mechanism (7) has tube cap pjncture needle (6), the right side end of tube cap pjncture needle (6) is equipped with guide rail (8) of supplementary slide positioning, be equipped with under the pjncture needle and be used for preventing that vacuum blood collection tube (4) are by the pressure cap piece (9) that lift up, the right side end of pressing cap piece (9) is through the stationary blade assembly at equipment rack upper surface.
3. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 2, wherein: the collection system comprises a sample needle (2) for sampling and a sample needle cleaning pool (3) for cleaning the sample needle (2), wherein the top end of the sample needle (2) is provided with a liquid level sensor (1), and the rear end of the liquid level sensor (1) is provided with a rotating arm (5).
4. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 2, wherein: the bottom end of the screw rod mechanism (7) penetrates through the upper surface of the equipment rack and is assembled at the output end of the corresponding driving motor.
5. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 2, wherein: the guide rail (8) comprises a sliding groove on the outer side and a sliding rod assembled in the sliding groove, and the sliding rod is sleeved on the inner surface of a sliding hole of a support arm at the right end of the tube cap puncture needle (6).
6. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 5, wherein: the right end of the cap pressing sheet (9) is connected with the fixing sheet through a bolt, a round hole is formed in the upper surface of the cap pressing sheet (9), and the circle center of the round hole corresponds to the axis of the puncture needle.
7. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 3, wherein: the bottom end of the sample needle cleaning pool (3) is connected to a cleaning water pump in the device through a conduit.
8. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 3, wherein: the bottom of swinging boom (5) is equipped with slewing mechanism, the vertical distance of the rotatory axle center of swinging boom (5) to sample needle (2) axle center equals the rotatory axle center of swinging boom (5) to the axle center vertical distance of sample needle washing pond (3).
9. The automatic puncturing device for vacuum blood collection tubes capable of automatically sensing liquid level according to claim 1, wherein: the sampling device and the puncture device are lifted synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331795.XA CN113551945A (en) | 2020-04-24 | 2020-04-24 | Automatic vacuum blood collection tube puncturing device capable of automatically sensing liquid level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331795.XA CN113551945A (en) | 2020-04-24 | 2020-04-24 | Automatic vacuum blood collection tube puncturing device capable of automatically sensing liquid level |
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| CN113551945A true CN113551945A (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010331795.XA Pending CN113551945A (en) | 2020-04-24 | 2020-04-24 | Automatic vacuum blood collection tube puncturing device capable of automatically sensing liquid level |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021983A1 (en) * | 2000-07-21 | 2002-02-21 | Comte Roger Le | Device for processing samples of blood products |
| US20070095159A1 (en) * | 2003-07-18 | 2007-05-03 | C2 Diagnostics | Sampling device and method for an automatic analyser |
| CN102160792A (en) * | 2010-02-22 | 2011-08-24 | 白杰 | Disk-shaped instant vacuum blood sampling method and special-purpose device |
| CN204359390U (en) * | 2014-12-31 | 2015-05-27 | 广州安必平医药科技股份有限公司 | Liquid level sensor |
| CN208653857U (en) * | 2018-08-24 | 2019-03-26 | 山东艾科达生物科技有限公司 | A kind of complex samples system puncturing function with nut cap |
| CN110082155A (en) * | 2019-05-07 | 2019-08-02 | 上海奥普生物医药有限公司 | Puncture sampler and vitro detection analyzer |
| CN110726591A (en) * | 2019-10-08 | 2020-01-24 | 广州市赛特检测有限公司 | Automatic sample retention mechanism for liquid sample |
| CN210051777U (en) * | 2019-03-21 | 2020-02-11 | 深圳市活水床旁诊断仪器有限公司 | Biochemical analyzer |
| CN213091272U (en) * | 2020-08-19 | 2021-04-30 | 南京劳拉苏埃尔电子有限公司 | Automatic puncture vacuum test tube that possesses liquid level response inhales appearance device |
-
2020
- 2020-04-24 CN CN202010331795.XA patent/CN113551945A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021983A1 (en) * | 2000-07-21 | 2002-02-21 | Comte Roger Le | Device for processing samples of blood products |
| US20070095159A1 (en) * | 2003-07-18 | 2007-05-03 | C2 Diagnostics | Sampling device and method for an automatic analyser |
| CN102160792A (en) * | 2010-02-22 | 2011-08-24 | 白杰 | Disk-shaped instant vacuum blood sampling method and special-purpose device |
| CN204359390U (en) * | 2014-12-31 | 2015-05-27 | 广州安必平医药科技股份有限公司 | Liquid level sensor |
| CN208653857U (en) * | 2018-08-24 | 2019-03-26 | 山东艾科达生物科技有限公司 | A kind of complex samples system puncturing function with nut cap |
| CN210051777U (en) * | 2019-03-21 | 2020-02-11 | 深圳市活水床旁诊断仪器有限公司 | Biochemical analyzer |
| CN110082155A (en) * | 2019-05-07 | 2019-08-02 | 上海奥普生物医药有限公司 | Puncture sampler and vitro detection analyzer |
| CN110726591A (en) * | 2019-10-08 | 2020-01-24 | 广州市赛特检测有限公司 | Automatic sample retention mechanism for liquid sample |
| CN213091272U (en) * | 2020-08-19 | 2021-04-30 | 南京劳拉苏埃尔电子有限公司 | Automatic puncture vacuum test tube that possesses liquid level response inhales appearance device |
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