CN215812808U - Needle group driving structure of immunoassay analyzer and immunoassay analyzer - Google Patents

Abstract

The utility model discloses a needle group driving structure of an immunoassay analyzer and the immunoassay analyzer, the needle group driving structure of the immunoassay analyzer comprises an analysis needle, an X-axis driving module and a Y-axis driving module, the analysis needle is used for absorbing, transferring and stirring a detection sample, the Y-axis driving module comprises a Y-axis driving source and a Y-axis moving part, and the Y-axis moving part is connected with the analysis needle; the X-axis driving module comprises an X-axis driving source and an X-axis moving part, and the X-axis moving part is connected with the Y-axis driving source to drive the Y-axis driving module and the analysis needle to move along the X-axis direction. An anti-collision limiting part is arranged on the Y-axis moving part, and a first limiting groove is arranged on an X-axis driving source of the X-axis driving module. This needle group drive structure can restrict the descending stroke of analysis needle, avoids the phenomenon of analysis needle striking reagent card when towards reagent card dropwise add sample, can enough avoid the analysis needle to damage, can avoid the sample filth again, promotes the analysis precision.

Description

Needle group driving structure of immunoassay analyzer and immunoassay analyzer

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a needle group driving structure of an immunoassay analyzer and the immunoassay analyzer.

Background

The fluorescence immunoassay analyzer is an apparatus for immunological quantitative analysis of a body fluid sample of a patient, can detect a plurality of disease symptoms, has the advantages of high sensitivity, wide linear range, simple apparatus, convenient operation, high analysis speed, high detection automation degree and the like, greatly improves the immunoassay efficiency, eliminates artificial subjective errors, and has the quality of stable rate immunoassay, thus being widely applied to the fields of modern clinical immunoassay diagnosis and life science research at present.

The analysis needle in the existing immunoassay analyzer may collide with the reagent card or other components during the process of dropping liquid into the reagent card, so that the analysis needle is damaged.

SUMMERY OF THE UTILITY MODEL

The first objective of the present invention is to provide a needle set driving structure of an immunoassay analyzer, which can limit the descending stroke of an analysis needle, avoid the phenomenon that the analysis needle collides with a reagent card when dropping a sample toward the reagent card, avoid the damage of the analysis needle, avoid the contamination of the sample, and improve the analysis precision.

The second purpose of the utility model is to provide an immunoassay analyzer, which can avoid the damage phenomenon of an analysis needle in the using process and improve the using reliability of the immunoassay analyzer.

In order to achieve the technical effects, the technical scheme of the utility model is as follows:

the utility model discloses a needle group driving structure of an immunoassay analyzer, which comprises: the analysis needle is used for sucking, transferring and stirring a detection sample; the Y-axis driving module comprises a Y-axis driving source and a Y-axis moving part, the Y-axis driving source is connected with the Y-axis moving part to drive the Y-axis moving part to move along the Y-axis direction, and the Y-axis moving part is connected with the analysis needle to drive the analysis needle to move along the Y-axis direction; the X-axis driving module comprises an X-axis driving source and an X-axis moving part, the X-axis driving source is connected with the X-axis moving part to drive the X-axis moving part to move along the X-axis direction, and the X-axis moving part is connected with the Y-axis driving source to drive the Y-axis driving module and the analysis needle to move along the X-axis direction; the anti-collision limiting part is arranged on the Y-axis motion part, a first limiting groove is formed in an X-axis driving source of the X-axis driving module, the Y-axis motion part drives the analysis needle to move downwards to be added to the reagent card dropwise, and during sample, the anti-collision limiting part can be abutted to the bottom wall of the first limiting groove.

In some embodiments, a second limiting groove is further disposed on the X-axis driving source, the second limiting groove is spaced from the first limiting groove, and when the Y-axis moving portion drives the analyzing needle to move downward to extend into the sample mixing container, the anti-collision limiting member can abut against a bottom wall of the second limiting groove.

In some embodiments, a first photoelectric sensor is arranged on the Y-axis driving source, the first photoelectric sensor is located right above the first limiting groove, and two first photoelectric plates are arranged on the Y-axis moving portion at intervals in the vertical direction; wherein: the first photoelectric sensor detects the first photoelectric sheet positioned above the first photoelectric sensor, and the anti-collision limiting piece is separated from the first limiting groove; the first photoelectric sensor detects that the first photoelectric sheet is located below, and the anti-collision limiting part abuts against the bottom wall of the first limiting groove.

In some embodiments, a second photosensor is further disposed on the Y-axis driving source, and a second photoelectric sheet is disposed on the X-axis driving source, the second photoelectric sheet being disposed corresponding to one sample container.

In some specific embodiments, be equipped with on the X axle driving source with the groove is dodged that the second photoelectricity piece corresponds, the both ends of dodging the groove open the setting, second photoelectric sensor corresponds one when the setting of second photoelectricity piece, the analysis needle is in can pass under the drive of Y axle drive module dodge the groove and insert the sample container.

In some specific embodiments, the X-axis driving source is provided with a mounting seat, and the mounting seat is provided with a plurality of branches arranged at intervals along the length direction of the mounting seat.

In some embodiments, a wash seat is provided on the Y-axis drive source, the wash seat having a wash chamber therein, the analysis needle being disposed through the wash chamber.

In some embodiments, the Y-axis driving source includes a Y-axis fixing plate connected to the X-axis moving part, a Y-axis motor provided on the Y-axis fixing plate, and a Y-axis lead screw engaged with a motor shaft of the Y-axis motor; y axle motion portion includes Y axle fly leaf and Y axle nut, the cooperation of Y axle nut is in on the Y axle lead screw and with Y axle fly leaf links to each other, be equipped with the mating holes on the Y axle fly leaf, the mating holes is used for holding the analysis needle, install on the lateral wall of Y axle fly leaf anticollision locating part.

In some embodiments, the X-axis driving source includes an X-axis fixing plate, a belt assembly and an X-axis motor, the X-axis fixing plate is provided with the first limiting groove, the belt assembly is mounted on the X-axis fixing plate, the X-axis motor is mounted on the X-axis fixing plate, and an output shaft of the X-axis motor is matched with a driving wheel of the belt assembly; the X-axis movement part comprises an X-axis movable plate and an X-axis pressing plate, the X-axis movable plate is connected with the Y-axis driving source, and the X-axis pressing plate is matched with the X-axis movable plate and a transmission belt of the transmission belt assembly.

The utility model also discloses an immunoassay analyzer, comprising: the device comprises a base, a sample container, a reagent card and a sample mixing container, wherein the sample container, the reagent card and the sample mixing container are arranged on the base; the needle set driving structure of the immunoassay analyzer described above is located above the base.

The needle group driving structure of the immunoassay analyzer of the embodiment has the following beneficial effects: in the actual work process, X axle drive module drive Y axle drive module and analysis needle move to the top of reagent card, X axle drive module stop work, Y axle drive module starts drive analysis needle downstream, at analysis needle downstream's in-process, crashproof locating part on the Y axle motion portion inserts first spacing inslot gradually, when crashproof locating part contacts the tank bottom of first spacing groove, Y axle drive module stop motion, the too big phenomenon that leads to striking reagent card of descending stroke of having avoided the analysis needle takes place, can enough guarantee the safety in utilization of analysis needle, can avoid the sample on the reagent card to be polluted again.

The immunoassay analyzer of the present embodiment has the following beneficial effects: due to the fact that the needle group driving structure of the immunoassay analyzer is arranged, the immunoassay analyzer can avoid the phenomenon that an analysis needle is damaged in the using process, and the using reliability of the immunoassay analyzer is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of the construction of an immunoassay analyzer according to an embodiment of the present invention;

FIG. 2 is a schematic view of a needle set drive mechanism of an immunoassay analyzer of an embodiment of the present invention;

FIG. 3 is another schematic view of the needle set drive mechanism of the immunoassay analyzer of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a Y-axis driving module according to an embodiment of the utility model;

FIG. 5 is a schematic structural diagram of an X-axis driving module according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a base of the immunoassay analyzer according to the embodiment of the present invention.

Reference numerals:

1. an analytical needle;

2. a Y-axis drive module; 21. a Y-axis drive source; 211. a Y-axis fixing plate; 2111. a Y-axis slide rail; 212. a Y-axis motor; 213. a Y-axis lead screw; 22. a Y-axis moving part; 221. a Y-axis movable plate; 2211. an anti-collision limiting part; 2212. a Y-axis slider; 222. a Y-axis nut;

3. an X-axis drive module; 31. an X-axis drive source; 311. an X-axis fixing plate; 3111. a first limit groove; 3112. a second limit groove; 3113. an avoidance groove; 3114. an X-axis slide rail; 312. a belt assembly; 313. an X-axis motor; 32. an X-axis moving part; 321. an X-axis movable plate; 3211. an X-axis slider; 322. pressing an X-axis plate;

4. cleaning a seat;

5. a buffer needle;

6. a first photosensor; 7. a first photoelectric sheet;

8. a second photosensor; 9. a mounting seat; 91. a second photoelectric sheet;

10. a base; 101. a scanning head; 102. a detection cartridge; 103. a reagent card; 104. a sample container; 105. a sample mixing container; 106. a storage bin; 107. a push plate.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific structure of the needle group driving structure of the immunoassay analyzer according to the embodiment of the present invention will be described below with reference to fig. 1 to 6.

The utility model discloses a needle group driving structure of an immunoassay analyzer, as shown in fig. 1, the needle group driving structure of the immunoassay analyzer of the embodiment comprises an analysis needle 1, an X-axis driving module 3 and a Y-axis driving module 2, the analysis needle 1 is used for sucking, transferring and stirring a detection sample, the Y-axis driving module 2 comprises a Y-axis driving source 21 and a Y-axis moving part 22, the Y-axis driving source 21 is connected with the Y-axis moving part 21 to drive the Y-axis moving part to move along the Y-axis direction, and the Y-axis moving part 22 is connected with the analysis needle 1 to drive the analysis needle 1 to move along the Y-axis direction. The X-axis driving module 3 comprises an X-axis driving source 31 and an X-axis moving part 32, the X-axis driving source 31 is connected with the X-axis moving part 32 to drive the X-axis moving part to move along the X-axis direction, and the X-axis moving part 32 is connected with the Y-axis driving source 21 to drive the Y-axis driving module 2 and the analysis needle 1 to move along the X-axis direction. The Y-axis moving portion 22 is provided with an anti-collision limiting member 2211, the X-axis driving source 31 of the X-axis driving module 3 is provided with a first limiting groove 3111, and when the Y-axis moving portion 22 drives the analyzing needle 1 to move downwards to drop a sample onto the reagent card 103, the anti-collision limiting member 2211 can abut against the bottom wall of the first limiting groove 3111.

As shown in fig. 1 to 2, it can be understood that, in actual use, the analyzing needle 1 can move in the up-down direction by the driving of the Y-axis driving module 2 and can move in the left-right direction by the driving of the X-axis driving module 3. When a sample needs to be dripped onto the reagent card 103, the X-axis driving module 3 drives the Y-axis driving module 2 and the analysis needle 1 to move above the reagent card 103, the X-axis driving module 3 stops working, the Y-axis driving module 2 starts to drive the analysis needle 1 to move downwards, in the process of downward movement of the analysis needle 1, the anti-collision limiting part 2211 on the Y-axis moving part 22 is gradually inserted into the first limiting groove 3111, and when the anti-collision limiting part 2211 contacts the groove bottom of the first limiting groove 3111, the Y-axis driving module 2 stops moving, so that the phenomenon that the analysis needle 1 collides with the reagent card 103 due to overlarge stroke can be avoided, the use safety of the analysis needle 1 can be ensured, and the sample on the reagent card 103 can be prevented from being polluted.

As shown in fig. 2, it should be added that the first limiting groove 3111 mainly functions to limit the descending stroke of the analyzing needle 1 through the limiting bump stopper 2211, and therefore, in this embodiment, the shape of the first limiting groove 3111 may be any shape and any size according to practical needs, and the shape and size of the first limiting groove 3111 are not specifically limited herein.

As shown in fig. 2, in some embodiments, the X-axis driving source 31 further includes a second limiting groove 3112, the second limiting groove 3112 is spaced apart from the first limiting groove 3111, and the Y-axis moving portion 22 drives the analyzing needle 1 to move downward to extend into the sample mixing container 105, so that the bump-limiting member 2211 can abut against the bottom wall of the second limiting groove 3112. It will be appreciated that in the actual analysis process, it may also be necessary to place the sample into the sample mixing container 105 for mixing with an auxiliary liquid such as a buffer. If the stroke of the analyzing needle 1 is not controlled during the process of inserting the analyzing needle 1 into the sample mixing container 105, there is a possibility that the analyzing needle 1 hits the sample mixing container 105. In this embodiment, the second limit groove 3112 is additionally disposed on the X-axis driving source 31, and when the anti-collision limit component 2211 contacts the bottom of the second limit groove 3112, the Y-axis driving module 2 stops moving, so as to avoid the phenomenon that the analysis needle 1 collides with the sample mixing container 105 due to an excessively large descending stroke, which not only ensures the safety of the analysis needle 1, but also prevents the sample in the sample mixing container 105 from being polluted.

As shown in fig. 2, it should be noted that, in order to mix the samples, a buffer solution adding needle is provided on the Y-axis drive source 21, and a buffer solution is injected into the sample mixing container 105 before adding the samples into the sample mixing container 105. The buffering liquid adding needle is fixed on the Y-axis driving source 21, can only move along the left-right direction along with the X-axis moving part 32, and cannot move up and down, so that a corresponding limit groove does not need to be arranged on the X-axis driving source 31.

It should be added that the second position-limiting groove 3112 mainly functions to limit the descending stroke of the analyzing needle 1 through the position-limiting bump-limiting member 2211, so in this embodiment, the shape of the second position-limiting groove 3112 may be practically any shape and any size, and the shape and size of the second position-limiting groove 3112 are not specifically limited herein.

As shown in fig. 2 and 4, in some embodiments, the Y-axis driving source 21 is provided with a first photoelectric sensor 6, the first photoelectric sensor 6 is located right above the first limiting groove 3111, and the Y-axis moving portion 22 is provided with two first photoelectric plates 7 spaced apart from each other in the vertical direction. When the first photoelectric sensor 6 detects the first photoelectric sheet 7 located above, the anti-collision limiting piece 2211 is separated from the first limiting groove 3111; the first photoelectric sensor 6 detects the first photoelectric sheet 7 located below, and the anti-collision limiting member 2211 abuts against the bottom wall of the first limiting groove 3111.

First, it should be noted that, if the anti-collision limiting piece 2211 abuts against the bottom of the first limiting groove 3111, the Y-axis moving portion 22 still moves downward to press the anti-collision limiting piece 2211 against the bottom of the first limiting groove 3111, which may easily damage the anti-collision limiting piece 2211. If the anti-collision limiting member 2211 is located in the first limiting groove 3111 and the X-axis moving portion 32 starts to move in the left-right direction, the anti-collision limiting member 2211 may collide with the side wall of the first limiting groove 3111. Neither of these conditions is conducive to the proper operation of the immunoassay analyzer.

It is understood that, in the present embodiment, as shown in fig. 2, two first photoelectric plates 7 are provided on the Y-axis moving portion 22, and the corresponding first photoelectric sensor 6 is provided on the Y-axis driving source 21, so that the first photoelectric sensor 6 can detect the first photoelectric plate 7 or the second photoelectric plate 91 during the downward movement of the Y-axis moving portion 22. In design, when the anti-collision limiting part 2211 is separated from the first limiting groove 3111, the first photoelectric sensor 6 just detects the first photoelectric sheet 7 located below, and when the anti-collision limiting part 2211 abuts against the bottom wall of the first limiting groove 3111, the first photoelectric sensor 6 detects the first photoelectric sheet 7 located below. Therefore, when the first photoelectric sensor 6 detects the first photoelectric sheet 7 located above, the X-axis driving source 31 drives the X-axis moving portion 32 to move, and since the anti-collision limiting member 2211 is separated from the first limiting groove 3111 at this time, the anti-collision limiting member 2211 does not collide with the side wall of the first limiting groove 3111 regardless of the stroke of the X-axis moving portion 32. When the first photoelectric sensor 6 detects the first photoelectric sheet 7 located below, the Y-axis driving source 21 stops driving the Y-axis moving portion 22, and since the Y-axis moving portion 22 stops moving at this time, the bottom wall of the first limit groove 3111 is prevented from being pressed by the anti-collision limiting piece 2211, and the anti-collision limiting piece 2211 is prevented from being damaged. It should be added here that, in other embodiments of the present invention, the position of the bump stopper 2211 relative to the first stopper groove 3111 may also be represented in other manners, for example, pressure sensors are disposed on the bottom wall and the side wall of the first stopper groove 3111, and when the pressure sensors exceed a predetermined value, the bump stopper 2211 is described to touch the bottom wall and the side wall of the first stopper groove 3111, so as to adjust the operating states of the X-axis moving portion 32 and the Y-axis moving portion 22.

As shown in fig. 3, in some embodiments, a second photosensor 8 is further disposed on the Y-axis driving source 21, and a second photoelectric sheet 91 is disposed on the X-axis driving source 31, where the second photoelectric sheet 91 is disposed corresponding to one sample container 104. It can be understood that, in the practical process, the sample in the sample container 104 needs to be sucked out for subsequent work, in this embodiment, the second photoelectric sheet 91 and the second photoelectric sensor 8 are additionally provided, when the second photoelectric sheet 91 is detected by the second photoelectric sensor 8, it is indicated that the analysis needle 1 has moved above the sample container 104, and at this time, the Y-axis moving portion 22 drives the analysis needle 1 to descend, so that the analysis needle 1 can extend into the sample container 104 to suck the sample. Therefore, the analysis needle 1 can extract a sample from the sample container 104 at the designated position in the actual use process, and the automation degree of the immunoassay analyzer is improved. Of course, it should be additionally noted that, in other embodiments of the present invention, the device for positioning the analysis needle 1 is not limited to the structure of the photoelectric sensor, and may also have a sensing device such as an infrared sensor or a pressure sensor to realize positioning.

As shown in fig. 5, in some specific embodiments, an avoiding groove 3113 corresponding to the second photoelectric sheet 91 is provided on the X-axis driving source 31, two ends of the avoiding groove 3113 are opened, and when the second photoelectric sensor 8 is provided corresponding to one second photoelectric sheet 91, the analyzing needle 1 can pass through the avoiding groove 3113 and be inserted into the sample container 104 under the driving of the Y-axis driving module 2. It should be noted that, in the actual operation, the specimen container 104 is a test tube in general, the depth of the test tube is relatively deep, and the phenomenon that the analyzing needle 1 hits the bottom wall of the test tube is unlikely to occur, so that it is not necessary to provide a limit groove in the X-axis driving source 31. It can be understood that, in order to ensure the limiting function of the first limiting groove 3111, the projection of the bump stopper 2211 and the whole X-axis driving source 31 in the vertical direction has an overlapping region, and if an avoiding structure is not provided at the position corresponding to the second photoelectric sheet 91, the phenomenon that the bump stopper 2211 and the X-axis driving source 31 interfere with each other during the insertion of the analysis needle 1 into the sample container 104 is very likely to occur. In this embodiment, the X-axis driving source 31 is provided with an avoiding groove 3113 corresponding to the second photoelectric sheet 91, and the collision-preventing member 2211 can smoothly pass through the avoiding groove 3113 during the insertion of the analysis needle 1 into the sample container 104, thereby preventing the collision-preventing member 2211 from interfering with the X-axis driving source 31.

In some embodiments, as shown in fig. 3, the mounting seat 9 is disposed on the X-axis driving source 31, and the mounting seat 9 is provided with a plurality of branches spaced along a length direction thereof. It can be understood that, the plurality of second photoelectric sheets 91 are arranged on the mounting seat 9, and on the one hand, the plurality of sample containers 104 can be arranged on the immunoassay analyzer, so that the immunoassay analyzer can analyze a plurality of samples in sequence, and the detection flux of the immunoassay analyzer is improved. On the other hand, a plurality of second photovoltaic sheets 91 are integrated on the same part, so that the assembly process is simplified, and the assembly efficiency is improved. Of course, in another embodiment of the present invention, the plurality of second photovoltaic sheets 91 may be separately mounted on the X-axis driving source 31.

As shown in fig. 4, in some embodiments, the Y-axis drive source 21 is provided with a wash bowl 4, and the wash bowl 4 has a wash chamber therein, through which the analysis needle 1 is disposed. It can be understood that, after one experiment is completed, if the second experiment is directly performed without cleaning the analyzing needle 1, the sample may be contaminated to affect the analyzing structure. Cleaning seat 4 on the Y axle driving source 21 that adds in this embodiment can let in cleaning solution or air current after the experiment is accomplished and wash analysis needle 1 to avoid remaining material influence experiment next time on analysis needle 1.

As shown in fig. 4, in some embodiments, the Y-axis driving source 21 includes a Y-axis fixing plate 211, a Y-axis motor 212, and a Y-axis screw 213, the Y-axis fixing plate 211 being connected to the X-axis moving part 32, the Y-axis motor 212 being provided on the Y-axis fixing plate 211, the Y-axis screw 213 being engaged with a motor shaft of the Y-axis motor 212; the Y-axis moving portion 22 includes a Y-axis movable plate 221 and a Y-axis nut 222, the Y-axis nut 222 is fitted on the Y-axis lead screw 213 and connected to the Y-axis movable plate 221, a fitting hole is formed in the Y-axis movable plate 221, the fitting hole is used for accommodating the analysis needle 1, and an anti-collision limiting member 2211 is installed on a side wall of the Y-axis movable plate 221. It can be understood that, adopt Y axle fixed plate 211 fixed Y axle motor 212 and Y axle screw 213, can ensure the stability of Y axle electrode and Y axle screw 213, adopt Y axle fixed plate 211 installation analysis needle 1 can promote the installation stability of analysis needle 1, because the cooperation of analysis needle 1 is in the mating holes, can also adjust the height of analysis needle 1 according to actual need to accomplish the experiment better. In addition, the Y-axis motor 212 is adopted to drive the Y-axis screw 213 to rotate to drive the Y-axis nut 222 and the Y-axis movable plate 221 to move, so that on one hand, the motion stability of the Y-axis movable plate 221 can be ensured, and the Y-axis movable plate 221 is prevented from being inclined, on the other hand, the matching precision of the screw nut is high, and the stroke control can be accurately realized, so that the motion precision of the analysis needle 1 along the vertical direction is ensured, and the normal operation of an analysis experiment is ensured.

It should be additionally noted that, in other embodiments of the present invention, the structure of the Y-axis driving module 2 is not limited to the above description, and may be configured according to actual needs. For example, in some embodiments, the Y-axis driving source 21 of the Y-axis driving module 2 is a cylinder of a cylinder structure, and the Y-axis moving part 22 is a piston rod of a cylinder structure.

As shown in fig. 2-3, in some embodiments, the X-axis driving source 31 includes an X-axis fixing plate 311, a driving belt assembly 312, and an X-axis motor 313, wherein the X-axis fixing plate 311 is provided with a first limiting groove 3111, the driving belt assembly 312 is mounted on the X-axis fixing plate 311, the X-axis motor 313 is mounted on the X-axis fixing plate 311, and an output shaft of the X-axis motor 313 is engaged with a driving wheel of the driving belt assembly 312; the X-axis moving portion 32 includes an X-axis movable plate 321 and an X-axis pressing plate 322, the X-axis movable plate 321 is connected to the Y-axis driving source 21, and the X-axis pressing plate 322 is engaged with the X-axis movable plate 321 and the belt of the belt assembly 312. It can be understood that fixing the belt assembly 312 and the X-axis motor 313 on the X-axis fixing plate 311 can ensure the stability of the belt assembly 312 and the X-axis motor 313, thereby ensuring the stable operation of the X-axis driving module 3. Adopt drive belt assembly 312 to realize the drive of Y axle driving source 21, can guarantee the stable motion of Y axle driving source 21 to because the flexibility of drive belt assembly 312 is great relatively, can avoid the phenomenon of the too big damage that leads to of weight of Y axle driving source 21 to take place.

It should be additionally noted that, in other embodiments of the present invention, the structure of the X-axis driving module 3 is not limited to the above description, and may be configured according to actual needs. For example, in some embodiments, the X-axis driving source 31 of the X-axis driving module 3 is a cylinder of a cylinder structure, and the X-axis moving part 32 is a piston rod of a cylinder structure.

As shown in fig. 6, the present invention also discloses an immunoassay analyzer, which comprises a base 10 and a needle group driving structure, wherein the base 10 is provided with a sample container 104, a reagent card 103 and a sample mixing container 105, and the needle group driving structure of the immunoassay analyzer is located above the base 10. Due to the fact that the needle group driving structure of the immunoassay analyzer is arranged, the immunoassay analyzer can avoid the phenomenon that the analysis needle 1 is damaged in the using process, and the using reliability of the immunoassay analyzer is improved.

The specific structure and operation of the immunoassay analyzer according to one embodiment of the present invention will be described with reference to fig. 1 to 6.

The immunoassay analyzer of the present embodiment includes a needle group driving structure and a base 10, as shown in fig. 6, the base 10 is provided with a scanning head 101, a detection cassette 102, a reagent card 103, a sample container 104, a sample mixing container 105, a washing well, and a push plate 107. The scanning head 101 is used for scanning labels on the reagent cards 103, the test cassette 102 is used for testing the reagent cards 103, the reagent cards 103 are placed in a storage bin 106 on the base 10, and in the actual process, the reagent cards 103 in the storage bin 106 are moved to the base 10 by a driving mechanism (not shown) and then pushed to a designated position by a push plate 107. Arranged in turn on the base 10, each reagent card 103 is capable of movement relative to the base 10 by means of a pusher plate 107.

As shown in fig. 1, the needle set driving structure includes an analyzing needle 1, a buffer needle 5, an X-axis driving module 3, a Y-axis driving module 2, and a cleaning seat 4. As shown in fig. 2 and 4, the Y-axis driving module 2 includes a Y-axis driving source 21 and a Y-axis moving portion 22, the Y-axis driving source 21 includes a Y-axis fixing plate 211, a Y-axis motor 212 and a Y-axis screw 213, the Y-axis fixing plate 211 is provided with a Y-axis sliding rail 2111 and two first photosensors 6 arranged at intervals in the up-down direction, the Y-axis motor 212 is arranged on the Y-axis fixing plate 211, and the Y-axis screw 213 is engaged with a motor shaft of the Y-axis motor 212; the Y-axis moving portion 22 includes a Y-axis movable plate 221 and a Y-axis nut 222, the Y-axis nut 222 is engaged with the Y-axis lead screw 213 and connected to the Y-axis movable plate 221, and the Y-axis movable plate 221 is provided with a first photoelectric sensor 6, an engaging hole, and a Y-axis slider 2212 engaged with the Y-axis slide rail 2111. As shown in fig. 3 and 5, the X-axis driving source 31 includes an X-axis fixing plate 311, a driving belt assembly 312, and an X-axis motor 313, wherein one side of the X-axis fixing plate 311 is provided with a first limiting groove 3111, a second limiting groove 3112, and five spaced avoiding grooves 3113, and the other side is provided with an X-axis sliding rail 3114. The transmission belt assembly 312 is installed on the X-axis fixed plate 311, the X-axis motor 313 is installed on the X-axis fixed plate 311, and an output shaft of the X-axis motor 313 is matched with a driving wheel of the transmission belt assembly 312, the X-axis moving portion 32 includes an X-axis movable plate 321 and an X-axis pressing plate 322, the X-axis movable plate 321 is connected with the Y-axis fixed plate 211, the X-axis movable plate 321 is provided with an X-axis slider 3211 matched with the X-axis sliding rail 3114 and a second photoelectric sensor 8, the X-axis pressing plate 322 is installed on the X-axis movable plate 321, and the transmission belt of the transmission belt assembly 312 is matched with a screw. The mounting base 9 is provided with five branches arranged at intervals along the length direction thereof, each branch is formed into one second photoelectric sheet 91, any one of the five second photoelectric sheets 91 can be sensed by the second photoelectric sensor 8, and the five second photoelectric sheets 91 are arranged in one-to-one correspondence with the five avoidance grooves 3113. And the four second photoelectric pieces 91 on the left side are arranged corresponding to the four sample containers 104, and the second photoelectric piece 91 on the rightmost side is arranged corresponding to the cleaning pool. The cleaning seat 4 is arranged on the Y-axis fixing plate 211, a cleaning cavity is arranged inside the cleaning seat 4, and the analysis needle 1 penetrates through the cleaning cavity.

The working process is as follows:

the first step is as follows: under the action of the X-axis motor 313, the anti-collision stopper 2211 of the Y-axis driving module 2 moves to the leftmost avoidance groove 3113 first, and when the second photoelectric sensor 8 aligns to the leftmost second photoelectric sheet 91, it indicates that the Y-axis motor 212 can drive the anti-collision stopper 2211 on the Y-axis movable plate 221 to move longitudinally to the bottom of the avoidance groove 3113 along the length direction of the avoidance groove, at this time, the analyzing needle 1 moves down and pierces the test tube on the base 10 along with the synchronous movement of the anti-collision stopper 2211, and simultaneously extracts the sample (such as blood to be detected) in the test tube, in this step, the photoelectric sensor can align to any one of the four avoidance grooves 3113 according to actual needs, so that the analyzing needle 1 can be inserted into any one of the four test tubes on the base 10;

the second step is that: the X-axis motor 313 drives the Y-axis driving module 2 to move, so that the buffer liquid needle 5 is aligned with the mixing container, the buffer liquid needle 5 can be aligned with the sample mixing container 105, and a buffer liquid can be added into the sample mixing container 105;

the third step: under the driving of the Y-axis motor 212 and the X-axis motor 313, the anti-collision stopper 2211 abuts against the bottom wall of the second stopper slot 3112 and the analysis pin 1 is inserted into the sample mixing container 105, the analysis pin 1 can add a sample into the mixing container, and then the analysis pin 1 stirs the buffer solution and the sample to be uniformly mixed;

the fourth step: the analysis needle 1 extracts the mixed liquid (mixture of the sample and the buffer liquid) in the sample mixing container 105, the first photoelectric sensor 6 is aligned with the first photoelectric sheet 7 on the lower side under the driving of the X-axis motor 313 and the Y-axis motor 212, at this time, the anti-collision limit 2211 is stopped against the bottom wall of the first limit groove 3111, the analysis needle 1 is arranged opposite to the reagent card 103, and then the analysis needle 1 drops the mixed liquid onto the reagent card 103;

fifthly, under the driving of the X-axis motor 313 and the Y-axis motor 212, the second photoelectric sensor 8 is aligned to the rightmost second photoelectric sheet 91, and the anti-collision limiting member 2211 moves to the groove bottom of the rightmost avoidance groove 3113, at this time, the analyzing needle 1 goes deep into the cleaning pool on the base 10, the cleaning solution in the cleaning pool cleans the analyzing needle 1, and the next experiment can be performed after the cleaning is completed.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., 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 utility model. In this specification, the schematic representations of the terms used above 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 above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. A needle group driving structure of an immunoassay analyzer, comprising:

the analysis probe (1), the said analysis probe (1) is used for absorbing, transferring and stiring the test sample;

the Y-axis driving module (2) comprises a Y-axis driving source (21) and a Y-axis moving part (22), the Y-axis driving source (21) is connected with the Y-axis moving part (21) to drive the Y-axis moving part to move along the Y-axis direction, and the Y-axis moving part (22) is connected with the analysis needle (1) to drive the analysis needle (1) to move along the Y-axis direction;

the X-axis driving module (3) comprises an X-axis driving source (31) and an X-axis moving part (32), the X-axis driving source (31) is connected with the X-axis moving part (32) to drive the X-axis moving part to move along the X-axis direction, and the X-axis moving part (32) is connected with the Y-axis driving source (21) to drive the Y-axis driving module (2) and the analysis needle (1) to move along the X-axis direction;

wherein, be equipped with crashproof locating part (2211) on Y axle motion portion (22), be equipped with first spacing groove (3111) on X axle driving source (31), Y axle motion portion (22) drive analysis needle (1) downstream is in order to drop on reagent card (103) during the sample, crashproof locating part (2211) can the butt on the diapire of first spacing groove (3111).

2. The needle set driving structure of the immunoassay analyzer of claim 1, wherein the X-axis driving source (31) further comprises a second limiting groove (3112), the second limiting groove (3112) is spaced apart from the first limiting groove (3111), and the Y-axis moving portion (22) drives the analyzing needle (1) to move downward to protrude into the sample mixing container (105), so that the anti-collision limiting member (2211) can abut against the bottom wall of the second limiting groove (3112).

3. The needle group driving structure of the immunoassay analyzer according to claim 1, wherein the Y-axis driving source (21) is provided with a first photoelectric sensor (6), the first photoelectric sensor (6) is located right above the first stopper groove (3111), and the Y-axis moving portion (22) is provided with two first photoelectric plates (7) arranged at intervals in a vertical direction; wherein:

the first photoelectric sensor (6) detects the first photoelectric sheet (7) positioned above, and the anti-collision limiting piece (2211) is separated from the first limiting groove (3111);

the first photoelectric sensor (6) detects the first photoelectric sheet (7) below, and the anti-collision limiting part (2211) is stopped against the bottom wall of the first limiting groove (3111).

4. The needle group driving structure of an immunoassay analyzer according to claim 1, wherein a second photoelectric sensor (8) is further provided on the Y-axis driving source (21), and a second photoelectric strip (91) is provided on the X-axis driving source (31), the second photoelectric strip (91) being provided corresponding to one sample container (104).

5. The needle group driving structure of the immunoassay analyzer as defined in claim 4, wherein the X-axis driving source (31) is provided with an avoiding groove (3113) corresponding to the second photoelectric plate (91), the two ends of the avoiding groove (3113) are opened, the second photoelectric sensor (8) corresponds to one of the second photoelectric plate (91), and when the second photoelectric sensor is set, the analyzing needle (1) is driven by the Y-axis driving module (2) to pass through the avoiding groove (3113) and be inserted into the sample container (104).

6. The needle group driving structure of an immunoassay analyzer according to claim 4, wherein the X-axis driving source (31) is provided with a mounting base (9), and the mounting base (9) is provided with a plurality of the second photoelectric plates (91) arranged at intervals along a length direction thereof.

7. The needle group driving structure of an immunoassay analyzer according to any one of claims 1 to 6, wherein a cleaning base (4) is provided on the Y-axis driving source (21), the cleaning base (4) having a cleaning chamber therein, the analyzing needle (1) being disposed through the cleaning chamber.

8. The needle group driving structure of an immunoassay analyzer according to any one of claims 1 to 6, wherein the Y-axis driving source (21) comprises a Y-axis fixing plate (211), a Y-axis motor (212), and a Y-axis lead screw (213), the Y-axis fixing plate (211) is connected to the X-axis moving part (32), the Y-axis motor (212) is provided on the Y-axis fixing plate (211), and the Y-axis lead screw (213) is engaged with a motor shaft of the Y-axis motor (212);

y axle motion portion (22) include Y axle movable plate (221) and Y axle nut (222), Y axle nut (222) cooperation is in on Y axle lead screw (213) and with Y axle movable plate (221) link to each other, be equipped with the mating holes on Y axle movable plate (221), the mating holes is used for holding analysis needle (1), install on the lateral wall of Y axle movable plate (221) anticollision locating part (2211).

9. The needle group driving structure of an immunoassay analyzer according to any one of claims 1 to 6, wherein the X-axis driving source (31) comprises an X-axis fixing plate (311), a driving belt assembly (312) and an X-axis motor (313), the first limit groove (3111) is provided on the X-axis fixing plate (311), the driving belt assembly (312) is mounted on the X-axis fixing plate (311), the X-axis motor (313) is mounted on the X-axis fixing plate (311), and an output shaft of the X-axis motor (313) is engaged with a driving wheel of the driving belt assembly (312);

the X-axis moving part (32) comprises an X-axis movable plate (321) and an X-axis pressing plate (322), the X-axis movable plate (321) is connected with the Y-axis driving source (21), and the X-axis pressing plate (322) is matched with the X-axis movable plate (321) and a transmission belt of the transmission belt assembly (312).

10. An immunoassay analyzer, comprising

The device comprises a base (10), wherein a sample container (104), a reagent card (103) and a sample mixing container (105) are arranged on the base (10);

the needle set driving structure of an immunoassay analyzer of any one of claims 1 to 9, which is located above the base (10).

Images