CN218727376U - Automatic sampling device and medical analysis and detection instrument - Google Patents
Automatic sampling device and medical analysis and detection instrument Download PDFInfo
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- CN218727376U CN218727376U CN202222812887.7U CN202222812887U CN218727376U CN 218727376 U CN218727376 U CN 218727376U CN 202222812887 U CN202222812887 U CN 202222812887U CN 218727376 U CN218727376 U CN 218727376U
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- isolation valve
- injection needle
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- 238000005070 sampling Methods 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 96
- 239000007924 injection Substances 0.000 claims abstract description 96
- 238000002955 isolation Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims description 25
- 239000000523 sample Substances 0.000 description 130
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000012864 cross contamination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The application relates to the technical field of analysis laboratory equipment, and particularly discloses an automatic sample introduction device and a medical analysis detection instrument; the device includes: the sampling device comprises a sampling needle support, an isolation valve, a sampling needle and a lifting mechanism, wherein the isolation valve is fixed on the sampling needle support and used for inputting sample liquid and controlling the transfusion conduction state of the sample liquid; the isolation valve can control the circulation state of the sample liquid between the sample introduction needle and the internal analysis instrument by inserting the sample introduction needle into the isolation valve; the lifting mechanism drives the sample injection needle support to move up and down, and simultaneously drives the isolation valve on the sample injection needle support and the sample injection needle to move up and down integrally. The automatic sampling device that this application provided has simple structure, characteristics that occupation space is little.
Description
Technical Field
The application belongs to the technical field of analysis laboratory equipment, particularly relates to an automatic sampling device and medical analysis detecting instrument.
Background
The sample introduction device is typically used by sampling the sample and quantitatively introducing the sample fluid into the medical analysis instrument.
The existing sample introduction device is generally additionally provided with a sample storage container to store sample liquid in order to ensure that enough and quantitative sample liquid enters the sample container, but the sample storage container is arranged, and two one-way valves or reversing valves are usually arranged to solve the problems of flow direction and conversion of the sample liquid in the sample storage container.
Accordingly, the prior art is in need of improvement and development.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide an autoinjection device and medical analysis detecting instrument, can control the sample liquid entering volume that the sample container got out, and has simple structure, advantage that occupation space is little.
In a first aspect, the application provides an automatic sample introduction device, which has the following technical scheme:
this autoinjection device includes: the sampling device comprises a sampling needle support, an isolation valve, a sampling needle and a lifting mechanism, wherein the isolation valve is fixed on the sampling needle support and used for inputting sample liquid and controlling the transfusion conduction state of the sample liquid, the sampling needle is vertically fixed on the output end of the bottom of the isolation valve, and the lifting mechanism is connected with the sampling needle support and used for driving the sampling needle support to move up and down.
According to the sample injection device, the sample injection needle is inserted into the isolation valve, the isolation valve is connected with a supply device of sample liquid, the isolation valve and the sample injection needle form a whole with a switch function, sample solution injection is controlled, and an additional liquid path structure is not required to be designed; the sample injection needle support is connected with the sample injection needle support through the lifting mechanism, and the sample injection needle support is driven by the lifting mechanism to enable the sample injection needle to be close to or far away from a sample container of the detection instrument; the application has the characteristics of simple component structure and small occupied space.
Furthermore, a cleaning swab is arranged below the sample injection needle and used for cleaning the sample injection needle.
The cleaning swab is arranged below the sample injection needle to clean the sample injection needle, so that cross contamination is prevented.
Furthermore, elevating system includes cylinder, cylinder connecting plate, and the piston rod of cylinder passes through cylinder connecting plate and injection needle support connection.
The piston rod of the cylinder is connected with the sample injection needle bracket through the cylinder connecting plate, and when the cylinder drives the piston rod of the cylinder to move up and down, the isolation valve and the sample injection needle are driven to move integrally.
Further, the stroke adjusting mechanism is used for adjusting and limiting the descending height of the sample injection needle bracket.
Furthermore, the stroke adjusting mechanism comprises a sliding table, a limit baffle and a fastener, the limit baffle is slidably mounted on the sliding table along the vertical direction, the fastener is arranged on one side of the limit baffle, and the limit baffle is provided with a blocking arm used for limiting the descending height of the sample injection needle support.
Furthermore, the sampling needle clamp is fixed on the sampling needle bracket, and the isolation valve is detachably arranged in the sampling needle clamp.
Furthermore, the lifting mechanism is connected with the sample injection needle bracket through a side countersunk hole.
Furthermore, the sample injection device further comprises a sample injection needle mounting baffle, wherein the sample injection needle mounting baffle is detachably mounted at the bottom of the sample injection needle clamp and is tightly attached to one side of the sample injection needle, and the sample injection needle mounting baffle is used for limiting the mounting direction of the sample injection needle.
Further, the autoinjection device of this application still includes linear guide, and the syringe needle support is with linear guide sliding connection.
In a second aspect, the present application provides a medical analysis and detection instrument provided with an autosampler device as described in any of the above aspects.
Through above-mentioned technical scheme, with foretell autoinjection device setting in medical analysis detecting instrument, this autoinjection device simple structure, occupation space are little, can make medical analysis detecting instrument miniaturized.
According to the method, the sample injection needle is inserted into the isolation valve, the isolation valve and the sample injection needle form a whole with a switch function, sample injection of the sample liquid is controlled, and an additional liquid path structure is not required to be designed; the lifting mechanism drives the sample injection needle bracket to move up and down and also drives an isolation valve on the sample injection needle bracket and the sample injection needle to move integrally to perform sample injection; meanwhile, a cleaning swab is arranged below the sample injection needle, so that the cleaning function of the sample injection needle is realized, and cross infection is prevented; the descending height of the sample injection needle bracket is adjusted through stroke adjustment, so that the depth of the sample injection needle entering the sample container is effectively adjusted; therefore, the automatic sampling device has the characteristics of simple structure and small occupied space.
Drawings
Fig. 1 is a front view of an automatic sample introduction device provided in an embodiment of the present application.
Fig. 2 is a left side view of an automatic sample introduction device provided in an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a lifting mechanism according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a stroke adjustment mechanism according to an embodiment of the present application.
FIG. 5 is a schematic view of a fastener according to an embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of a sample injection needle clamp provided in an embodiment of the present application.
Description of the reference symbols: 100. A sample injection needle bracket; 200. an isolation valve; 300. a sample injection needle; 400. a lifting mechanism; 410. a cylinder; 420. a cylinder connecting plate; 430. a cylinder base 440, a piston rod; 500. Cleaning the swab; 600. cleaning the swab support; 700. a stroke adjustment mechanism; 710. a sliding table; 720. a limit baffle; 721. a position knob; 730. fastening the device; 731. a clamping plate; 732. a limiting button; 800. a sample injection needle clamp; 900. a sample injection needle is provided with a stopper; 101. a linear guide rail; 102. the board is hung.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
As shown in fig. 1 and 2, the present application provides an automatic sample introduction device, comprising: the sampling device comprises a sampling needle support 100, an isolation valve 200, a sampling needle 300 and a lifting mechanism 400, wherein the isolation valve 200 is fixed on the sampling needle support 100 and used for inputting sample liquid and controlling the sampling state of the sample liquid, the sampling needle 300 is vertically fixed on the output end of the bottom of the isolation valve 200, and the lifting mechanism 400 is connected with the sampling needle support 100 and used for driving the sampling needle support 100 to move up and down.
Specifically, the lifting mechanism 400 is connected with the sample injection needle support 100, and the lifting mechanism 400 drives the sample injection needle support 100 to move up and down; the isolation valve 200 is fixed on the sample injection needle bracket 100; the needle 300 is vertically fixed at the bottom output end of the isolation valve 200 by inserting, and when the lifting mechanism 400 drives the needle 300 to move up and down, the isolation valve 200 fixed on the needle holder 100 also moves up and down accordingly.
It should be understood that the input end of the isolation valve 200 is connected to the supply device of the sample liquid, and the isolation valve 200 is a switch for controlling the delivery of the sample liquid, and the sample feeding state of the sample liquid is changed by controlling the isolation valve 200.
The working principle of the automatic sampling device in the embodiment of the application is as follows: when the detection instrument needs to sample, the lifting mechanism 400 drives the sample injection needle support 100 to descend, when the sample injection needle 300 descends to a fixed position of a sample container needing to sample, the isolation valve 200 is opened, sample liquid flows into the sample container through the sample injection needle to obtain the required sample liquid amount, the isolation valve 200 is closed to complete sample injection processing of the sample container, then, the lifting mechanism 400 drives the sample injection needle support 100 to ascend, and finally, the sample injection needle 300 resets.
According to the automatic sample introduction device, the sample introduction needle 300 is fixed at the output end of the isolation valve 200, the isolation valve 200 and the sample introduction needle 300 form a whole with a switch function, sample introduction of sample liquid is controlled, and an additional liquid path structure is not required to be designed; the automatic sample introduction device of the embodiment of the application is further connected with the sample introduction needle support 100 through the lifting mechanism 400, and the sample introduction needle support 100 is driven by the lifting mechanism 400 to realize that the sample introduction needle 300 is close to or far away from a sample container of the detection instrument; the automatic sample introduction device has the characteristics of simple structure and small occupied space.
In some preferred embodiments, a washing swab 500 is provided below the needle 300 for washing the needle 300.
Specifically, a cleaning swab 500 is arranged below the injection needle 300, that is, on a moving track of the injection needle 300, the cleaning swab 500 is connected with a cleaning swab bracket 600 through a set screw, and when the lifting mechanism 400 drives the injection needle 300 to move, the cleaning swab 500 ejects a cleaning solution to clean the injection needle 300; the cleaning swab 500 sprays the cleaning solution, so that the cleaning solution can be sprayed out before the injection needle 300 enters the sample injection and after the sample injection is finished, the injection needle 300 is cleaned, and cross contamination is prevented.
It should be further noted that the automatic sample introduction device according to the embodiment of the present application further includes a controller (not shown in the drawings), the lifting mechanism 400, the cleaning swab 500, and the isolation valve 200 of the present application are electrically connected to the controller, the controller of the present application is used for controlling the piston rod 440 of the cylinder 410 in the lifting mechanism 400 to move, and is used for controlling the cleaning swab 500 to eject the cleaning solution at a proper time to clean the sample introduction needle 300, and the controller of the present application is also used for controlling the isolation valve 200 to open and close to perform sample introduction.
In some preferred embodiments, as shown in fig. 3, the lifting mechanism 400 includes a cylinder 410 and a cylinder connecting plate 420, and a piston rod 440 of the cylinder 410 is connected to the sample injection needle holder 100 through the cylinder connecting plate 420.
Specifically, the air cylinder 410 is mounted on the air cylinder base 430, and the piston rod 440 of the air cylinder 410 is connected with the air cylinder connecting plate 420 through a hole on the air cylinder connecting plate 420; in actual operation, the cylinder 410 drives the cylinder connecting plate 420 to move, and then drives the isolation valve 200 and the injection needle 300 to move integrally.
In some preferred embodiments, as shown in fig. 4, the present application further comprises a stroke adjustment mechanism 700 for adjusting the lowered height of the needle holder 100.
Specifically, the stroke adjusting mechanism 700 is located below the cylinder connecting plate 420, when the cylinder 410 in the lifting mechanism 400 drives the cylinder connecting plate 420 to move downward, the lifting mechanism 400 also drives the sampling needle holder 100 to approach to a sample container of the detection instrument, when the stroke adjusting mechanism 700 limits the downward movement of the cylinder connecting plate 420, the sampling needle holder 100 stops descending, that is, the stroke adjusting mechanism 700 limits the descending height of the sampling needle holder 100, and if the position of the stroke adjusting mechanism 700 below the cylinder connecting plate 420 is changed, the descending height of the sampling needle holder 100 can be adjusted, so that the sampling needle 300 can be inserted into sample containers of different heights.
In some preferred embodiments, as shown in fig. 4 and 5, the stroke adjusting mechanism 700 includes a sliding table 710, a limit stop 720, and a fastener 730, wherein the limit stop 720 is slidably mounted on the sliding table 710 along a vertical direction, the fastener 730 is disposed on one side of the limit stop 720, and the limit stop 720 has a stop arm for limiting a descending height of the sample injection needle holder 100.
Specifically, the limiting baffle 720 is installed on the sliding table 710 in a sliding manner along the vertical direction, the limiting baffle 720 comprises a position knob 721, the fastener 730 is located on one side of the limiting baffle 720, the fastener 730 comprises a clamping plate 731 and a limiting button 732, and the limiting button 732 penetrates through a limiting hole in the clamping plate 731 and is connected with the limiting baffle 720; when the position of the limit baffle 720 on the sliding table 710 is adjusted, the sliding table 710 is tightly pressed by the position knob 721 to fix the limit baffle 720.
Specifically, the stopper arm of the limit stopper 720 is preferably disposed below the cylinder connecting plate 420.
When the cylinder 410 in the lifting mechanism 400 drives the syringe holder 100 to descend to the position of the limit baffle 720, the arm of the limit baffle 720 blocks the cylinder connecting plate 420 from moving downward, and the syringe 300 stops descending at this time, that is, the arm of the limit baffle 720 can limit the descending height of the syringe holder 100.
In some preferred embodiments, as shown in fig. 6, the autoinjection device of the present application further comprises: the sample injection needle fixture 800, the sample injection needle fixture 800 is fixed on the sample injection needle support 100, and the isolation valve 200 is detachably installed in the sample injection needle fixture 800.
Specifically, the syringe clamp 800 is fixed on the syringe holder 100 by a dowel pin, wherein the syringe clamp 800 comprises a clamping seat, two clamping blocks are arranged below the clamping seat, mounting grooves are formed in the two clamping blocks, the two mounting grooves can be combined into a circular shape, a gap is formed between the clamping blocks, the clamping blocks have elasticity, holes at the same position are formed in the side surfaces of the two clamping blocks, the isolation valve 200 is mounted in the mounting groove of the syringe clamp 800, a screw penetrates through the holes of the two clamping blocks, and the screw is matched with the hole of one clamping block to control the distance between the clamping blocks so as to fix the isolation valve 200; the isolation valve 200 installed in this manner is removable to facilitate replacement of the isolation valve 200.
In some preferred embodiments, the lifting mechanism 400 is connected to the needle holder 100 through a side counterbore.
Specifically, the lifting mechanism 400 is connected to the syringe holder 100 through a side counterbore, so that the lifting mechanism 400 drives the syringe holder 100 to move.
In some preferred embodiments, the present application further includes a sample needle mounting block 900, and the sample needle mounting block 900 is detachably mounted at the bottom of the sample needle fixture 800 and is closely attached to one side of the sample needle 300 for defining the mounting orientation of the sample needle 300.
Specifically, the injection needle mounting block 900 is mounted at the bottom of the injection needle fixture 800, and after the isolation valve 200 is mounted in the hole of the injection needle fixture 800, the injection needle mounting block 900 is tightly attached to one side of the injection needle 300, so as to limit the mounting orientation of the injection needle 300, and this way can ensure that the injection needle 300 does not deviate; after the injection needle 300 is installed, the injection needle installation stopper 900 can be detached, which facilitates subsequent injection work.
In some preferred embodiments, the present application further comprises a linear guide 101, and the sample injection needle holder 100 is slidably connected to the linear guide 101.
Specifically, the sample injection needle support 100 is also connected with the linear guide 101 in a sliding manner; when the lifting mechanism 400 drives the needle holder 100 to move up and down during sample injection, the needle holder 100 moves up and down along the linear guide 101.
In some preferred embodiments, the present application further comprises a peg board 102, wherein the cleaning swab holder 600 is secured to the peg board 102, and the cleaning swab 500 is fixedly mounted to the cleaning swab holder 600; the cylinder base 430 is fixed on the hanging plate 102; the sliding table 710 is arranged on the hanging plate 102; the linear guide rail 101 is arranged on the hanging plate 102; the clamping plate 731 is mounted on the clevis 102.
In another aspect, the present application provides a medical analysis and detection instrument provided with an autosampler device as described in any of the above aspects.
Through above-mentioned technical scheme, with foretell autoinjection device setting in medical analysis detecting instrument, above-mentioned autoinjection device simple structure, occupation space are little, can make medical analysis detecting instrument miniaturized.
From the above, the present application controls the sample injection state of the sample liquid by inserting the sample injection needle 300 into the isolation valve 200, i.e. integrating the isolation valve 200 and the sample injection needle 300 into a whole; the lifting mechanism 400 is connected with the sample injection needle bracket 100, the lifting mechanism 400 drives the sample injection needle bracket 100 to move up and down, and simultaneously drives the isolation valve 200 on the sample injection needle bracket 100 and the sample injection needle 300 to move integrally for sample injection; the cleaning swab 500 is arranged below the sample injection needle 300, so that the cleaning function of the sample injection needle 300 is realized, and cross infection is prevented; the stroke of the sample injection needle bracket 100 is adjusted through the stroke adjusting mechanism 700, so that the depth of the sample injection needle 300 entering the sample container is effectively adjusted; therefore, the automatic sampling device has the advantages of simple structure and small occupied space.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing are but a few of the more detailed descriptions of the present application. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (10)
1. An autoinjection device, its characterized in that includes: the sampling device comprises a sampling needle support, an isolation valve, a sampling needle and a lifting mechanism, wherein the isolation valve is fixed on the sampling needle support and used for inputting sample liquid and controlling the transfusion conduction state of the sample liquid, the sampling needle is vertically fixed on the output end of the bottom of the isolation valve, and the lifting mechanism is connected with the sampling needle support and used for driving the sampling needle support to move up and down.
2. The autoinjection device of claim 1, wherein a cleaning swab is disposed below the needle for cleaning the needle.
3. The automatic sampling device of claim 1, wherein the lifting mechanism comprises a cylinder and a cylinder connecting plate, and a piston rod of the cylinder is connected with the sampling needle bracket through the cylinder connecting plate.
4. The autoinjection device of claim 1, further comprising: and the stroke adjusting mechanism is used for adjusting the descending height of the sampling needle bracket.
5. The automatic sampling device according to claim 4, wherein the stroke adjusting mechanism comprises a sliding table, a limit baffle and a fastener, the limit baffle is slidably mounted on the sliding table along a vertical direction, the fastener is arranged on one side of the limit baffle, and the limit baffle is provided with a stop arm for limiting the descending height of the sampling needle support.
6. The autoinjection device of claim 1, further comprising: the sample injection needle clamp is fixed on the sample injection needle support, and the isolation valve is detachably installed in the sample injection needle clamp.
7. The autoinjection device of claim 3, wherein the lifting mechanism is connected with the sample needle support through a side counterbore.
8. The automatic sampling device of claim 6, further comprising a sampling needle mounting stopper, wherein the sampling needle mounting stopper is detachably mounted at the bottom of the sampling needle clamp, and is tightly attached to one side of the sampling needle to limit the mounting direction of the sampling needle.
9. The autoinjection device of claim 1, further comprising a linear guide, the sample needle holder being slidably connected with the linear guide.
10. A medical analysis and detection instrument comprising the autosampler of any of claims 1~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222812887.7U CN218727376U (en) | 2022-10-25 | 2022-10-25 | Automatic sampling device and medical analysis and detection instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222812887.7U CN218727376U (en) | 2022-10-25 | 2022-10-25 | Automatic sampling device and medical analysis and detection instrument |
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| CN218727376U true CN218727376U (en) | 2023-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118392804A (en) * | 2024-06-19 | 2024-07-26 | 山东阿斯德科技有限公司 | Micro-spectrophotometer and detection method thereof |
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- 2022-10-25 CN CN202222812887.7U patent/CN218727376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118392804A (en) * | 2024-06-19 | 2024-07-26 | 山东阿斯德科技有限公司 | Micro-spectrophotometer and detection method thereof |
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