CN220773081U

CN220773081U - 300-speed portable biochemical analyzer

Info

Publication number: CN220773081U
Application number: CN202322320886.5U
Authority: CN
Inventors: 金秉乐; 吴天康; 臧丽宝; 巩国华; 赵贵臣; 王中鹏; 金见睿; 何晓东
Original assignee: Shan Dong Clinisciences Biotech Co ltd
Current assignee: Shan Dong Clinisciences Biotech Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-12
Anticipated expiration: 2033-08-28

Abstract

The utility model provides a 300-speed portable biochemical analyzer, wherein a sampling needle is further arranged on a substrate, and the sampling needle is provided with a contractible and storable swing arm. When the biochemical analyzer is used, the sampling needle stretches out to the sampling position and returns to the storage position through the shrinkage structure, so that the overall height of the biochemical analyzer is reduced. The reagent disk is provided with a first driving motor which drives the reagent disk to rotate and is coaxially arranged, and the first driving motor is fixedly arranged on the substrate; the reaction plate is provided with a second driving motor which drives the reaction cup bracket to rotate and is coaxially arranged, and the second driving motor is fixedly arranged at the bottom of Wen Yoguo of the reaction plate; the reagent disk is set to be a combined reagent disk combining the reagent position and the sample position, so that when the reagent disk is applied to the detection of the small quantity of public health examination, the test positioning of the sample and the reagent is realized simultaneously through one reagent disk, and the reagent disk and the reaction disk are combined to be arranged in parallel, thereby reducing the integral structure of the biochemical analyzer and meeting the moving convenience requirement of the public health examination project.

Description

300-speed portable biochemical analyzer

Technical Field

The utility model relates to the technical field of medical inspection, in particular to a 300-speed portable biochemical analyzer.

Background

The full-automatic biochemical analyzer is mainly applied to clinical laboratory in hospitals containing hundreds of detection items, and in order to meet the detection requirements of more detection items, each detection reagent corresponds to different detection items and needs to be detected on the full-automatic biochemical analyzer. Different detection reagents are stored in different reagent bins, the existing full-automatic biochemical analyzer adopts numbers to distinguish different reagent bin positions, and in the actual operation process, after an operator puts a certain specific reagent into a specific reagent position in a reagent disk, the operator needs to set parameters of specific detection items on the reagent position, including the added sample amount, the reagent amount, the detection wavelength, the incubation time, the reaction time, the detection type and the like.

However, since there are many test items and relatively few reagent sites on the biochemical analyzer, each reagent site needs to be replaced from time to time and parameter setting is performed again temporarily. Therefore, a professional operator is required to set parameters for operating the full-automatic biochemical analyzer.

The free physical examination of the old, particularly the rural old, is realized, 10 physical examination methods (12 in few places) are involved in the biochemical examination, the public health physical examination adopts a mode of periodically and intensively carrying out physical examination each year, the number of the detected persons is large, the detected persons need to go deep into the basic level, and the parameters of the biochemical instrument are complex and the operation is complex due to the lack of operators trained in the professional in the rural basic level. The existing small biochemical analyzer suitable for carrying is a semi-automatic biochemical analyzer or manual analyzer, and cannot meet the requirement of large-scale physical examination. And the full-automatic biochemical analyzer has large volume, large weight and complex operation, and is inconvenient to go deep into remote villages to perform large-scale physical examination.

Disclosure of Invention

In view of the above, the utility model provides a 300-speed portable biochemical analyzer to meet the use requirements of public health examination.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a300-speed portable biochemical analyzer comprises a substrate, a reaction disk and a reagent disk which are arranged on the substrate along the length direction, wherein a sampling needle is further arranged on the substrate, and the sampling needle is provided with a contractible and storable swing arm;

the reagent disk is provided with a first driving motor which drives the reagent disk to rotate and is coaxially arranged, the first driving motor is fixedly arranged on the substrate, and a reagent arrangement area and a sample arrangement area are integrally arranged on the reagent disk;

the reaction plate is provided with a second driving motor which drives the reaction cup bracket to rotate and is coaxially arranged, and the second driving motor is fixedly arranged at the bottom of the incubation pot of the reaction plate.

Preferably, in the 300-speed portable biochemical analyzer, an inner ring of the reagent disk is arranged as a reagent arrangement area, and an outer ring of the reagent disk is arranged as a sample arrangement area;

the reagent arrangement area is provided with an inner ring reagent disk and an outer ring reagent disk which are concentrically arranged, and the inner ring reagent disk is divided into a plurality of sector areas which are uniformly arranged;

the outer ring reagent disk comprises a plurality of lug areas which are close to the fan-shaped area and are uniformly arranged around the periphery of the inner ring reagent disk;

the fan-shaped area is internally provided with a first kit arranged along with the fan-shaped area, and the ear area is internally provided with a second kit arranged along with the fan-shaped area;

and a sample tube placement area arranged on the outer ring reagent disk and filled between adjacent ear areas.

Preferably, in the 300-speed portable biochemical analyzer, the sector area is a triangular sector area with a triangular sector cross section, and a plurality of triangular sector areas enclose an inner ring structure;

the inner ring of the ear area and the outer ring of the sector area are of a shared arc wall surface, and the ear area is provided with an arc trapezoid structure with an inner side wall surface and an outer side wall surface both of which are arc wall surfaces;

the first kit is a sector-shaped kit matched with the sector-shaped area, and the second kit is a cambered surface trapezoidal kit matched with the ear area.

Preferably, in the 300-speed portable biochemical analyzer, the reagent disk includes a reagent disk bottom plate, and the fan-shaped area and the ear area are surrounded by a thin-wall structure extending out of the reagent disk bottom plate; the inner side of the thin-wall structure is convexly provided with ribs which are vertically arranged;

the periphery of the reagent disk bottom plate is also provided with a reagent disk outer wall plate with an annular structure, and the inner periphery of the reagent disk outer wall plate encloses an inner cavity of the reagent disk;

the reagent disk outer wall plate downwards extends out of the reagent disk lower edge part with an annular structure, and a plurality of reagent disk slits penetrating through the reagent disk lower edge part in the thickness direction are uniformly distributed on the reagent disk lower edge part;

the substrate is also provided with a first photoelectric sensor which is matched with the slit of the reagent disk and used for identifying the rotating position of the reagent disk.

Preferably, in the above 300-speed portable biochemical analyzer, the reagent disk bottom plate, the fan-shaped region, the ear region and the reagent disk outer wall plate are integrally formed to form the reagent disk made of plastic material.

Preferably, in the 300-speed portable biochemical analyzer, the biochemical analyzer further comprises a reagent disk housing fixedly mounted on the substrate, the reagent disk is rotatably arranged in the reagent disk housing, a photoelectric acquisition window is arranged on an outer ring of the reagent disk housing, and the first photoelectric sensor is mounted on the photoelectric acquisition window;

the first photoelectric sensor is provided with a photoelectric acquisition part matched with the lower edge part of the reagent disk.

Preferably, in the 300-speed portable biochemical analyzer, the reaction tray comprises an incubation pot fixedly mounted on the substrate, a bracket supporting seat is coaxially arranged in the incubation pot, and a reaction cup bracket with a disc-shaped structure is arranged on the bracket supporting seat;

a second driving motor is coaxially arranged at the bottom of the incubation pot, and a bracket transmission shaft which is connected with the second driving motor and the reaction cup bracket is arranged in the bracket supporting seat;

an annular arranged incubation track is arranged on the outer ring of the incubation pot;

the annular outer ring of the reaction cup bracket is uniformly provided with a plurality of reaction cup placing holes, and the reaction cup placing holes and the incubation track incubate the reaction cup.

Preferably, in the 300-speed portable biochemical analyzer, the middle part of the reaction cup bracket is a rotation driving part falling on the bracket supporting seat, the rotation driving part is provided with a plurality of protruding parts at intervals along the radial direction, and the protruding ends of the protruding parts are connected with the annular outer ring;

the inner ring of the reaction cup bracket extends out of the lower edge part of the bracket along the axial direction, and a plurality of bracket slits are distributed between the extending ends of the lower edge part of the bracket;

the incubation pot is fixedly provided with a second photoelectric sensor matched with the slit of the bracket.

Preferably, in the 300-speed portable biochemical analyzer, an inward concave installation sink is arranged on the periphery of the incubation pot, an insulation outer layer is fixedly arranged on the periphery of the incubation pot, an insulation protrusion is arranged on an inner ring of the insulation outer layer, and the insulation outer layer is pressed in the installation sink by the insulation protrusion.

The utility model provides a 300-speed portable biochemical analyzer, which comprises a substrate, a reaction disk and a reagent disk which are arranged on the substrate along the length direction, wherein a sampling needle is also arranged on the substrate, and the sampling needle is provided with a contractible and storable swing arm. When the biochemical analyzer is used, the sampling needle stretches out to the sampling position and returns to the storage position through the shrinkage structure, so that the overall height of the biochemical analyzer is reduced. The reagent disk is provided with a first driving motor which drives the reagent disk to rotate and is coaxially arranged, the first driving motor is fixedly arranged on the substrate, and the reagent disk is simultaneously provided with a sample arrangement area and a reagent arrangement area which are integrally arranged; the reaction plate is provided with a second driving motor which drives the reaction cup bracket to rotate and is coaxially arranged, and the second driving motor is fixedly arranged at the bottom of Wen Yoguo of the reaction plate; the reagent disk is a combined reagent disk with a combined reagent position and a sample position in an inner cavity.

The reagent disk is set to be a combined reagent disk combining the reagent position and the sample position, so that when the reagent disk is applied to the detection of the small quantity of public health examination, the test positioning of the sample and the reagent is realized simultaneously through one reagent disk, and the reagent disk and the reaction disk are combined to be arranged in parallel, thereby reducing the integral structure of the biochemical analyzer and meeting the moving convenience requirement of the public health examination project.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structural arrangement of a 300-speed portable biochemical analyzer provided by the utility model;

FIG. 2 is a front view of the structure of a reagent disk in the 300-speed portable biochemical analyzer according to the present utility model;

FIG. 3 is a schematic view of the driving structure of the reagent disk in FIG. 2;

FIG. 4 is a schematic diagram of a code wheel structure of the reagent disk in FIG. 2;

FIG. 5 is a schematic view of a reagent disk outer shell disposed at the periphery of the reagent disk;

FIG. 6 is a schematic diagram of a photosensor arrangement of the reagent disk of FIG. 2;

FIG. 7 is a sectional view showing the mounting structure of a reaction disk in the biochemical analyzer according to the present utility model;

FIG. 8 is a schematic view of the structure of the incubator in the reaction plate of FIG. 7;

FIG. 9 is an exploded view of the drive structure of the reaction disk of FIG. 7;

FIG. 10 is a schematic view showing the front structure of the reaction plate of FIG. 7;

FIG. 11 is a schematic view showing a back structure of the reaction plate of FIG. 7.

Detailed Description

The utility model discloses a 300-speed portable biochemical analyzer, which meets the use requirements of public health physical examination.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The public health examination project generally comprises 10 or 12 items, and has the characteristics of clear biochemical project and small quantity, wherein in the use of the reagent, the items of glutamic pyruvic transaminase (ALT), glutamic oxaloacetic transaminase (AST), low-density lipoprotein cholesterol (LDL), high-density lipoprotein cholesterol (HDL), UREA nitrogen (UREA), creatinine (CRE), total Bilirubin (TBIL) and Direct Bilirubin (DBIL) 8 are double reagent projects; glucose (GLU), triglycerides (TG), albumin (ALB) and total cholesterol (THCO 4) items are single reagent items.

The double-reagent detection project requires two reagents to perform biochemical reaction with a blood sample (sample), calculates the content of a detected substance according to the optical change of a reaction system, and temporarily mixes the two reagents together only when the two reagents react in order to avoid the situation that working fluid cannot be ensured to be effective for a long time after the two reagents are mixed in advance. The single reagent test item requires only one reagent to perform biochemical reaction with a blood sample (specimen), and calculates the item of the content of the test substance according to the optical change of the reaction system. In biochemical analysis instruments, a single reagent is generally defined as an R1 reagent only, i.e., when a sample is added to the R1 reagent, the reaction starts instantaneously; the double reagent is defined as two reagents matched with R1 and R2, a sample is firstly added into the reagent R1 to participate in the reaction, and then the reagent R2 is added after incubation for further reaction so as to achieve the detection purpose. Typically, R1 reacts with the sample to remove interference or to provide for further reaction after addition of R2.

As shown in fig. 1, fig. 1 is a schematic structural arrangement diagram of a biochemical analyzer provided by the present utility model.

The biochemical analyzer is applied to public health physical examination projects, and can be used for simultaneously carrying out double-reagent detection projects and single-reagent detection projects.

The 300-speed portable biochemical analyzer comprises a substrate 1, a reaction disc 2 and a reagent disc 3 which are arranged on the substrate 1 along the length direction, wherein a sampling needle 4 is also arranged on the substrate 1, and the sampling needle 4 is provided with a contractible and storable swing arm; the reagent disk 3 is provided with a first driving motor 31 which drives the reagent disk to rotate and is coaxially arranged, the first driving motor 31 is fixedly arranged on the base plate 1, and the reagent disk is provided with a sample arrangement area and a reagent arrangement area which are integrally arranged; the reaction disk 2 is provided with a second driving motor 22 which drives the reaction cup bracket 21 to rotate and is coaxially arranged, and the second driving motor 22 is fixedly arranged at the bottom of an incubation pot 23 of the reaction disk 2; the reagent disk 3 is a combined reagent disk with a combined reagent position and a sample position in an inner cavity.

The biochemical analyzer comprises a substrate 1, a reaction disk 2 and a reagent disk 3 which are arranged on the substrate 1, wherein the reagent disk 3 is a combined reagent disk for simultaneously storing reagents and samples, a plurality of cuvettes are arranged in the reaction disk 2, and the cuvettes are simultaneously used as reaction cups and are used for receiving the reagents and the samples injected from the reagent disk 3.

A plurality of reagent bins are arranged in the reagent disk 3, and in order to meet the requirements of public health examination projects, the reagent bins are arranged in a mode of combining a reagent position and a sample position.

2-6, FIG. 2 is a front view of the structure of a reagent disk in the biochemical analyzer according to the present utility model; FIG. 3 is a schematic view of the driving structure of the reagent disk in FIG. 2; FIG. 4 is a schematic diagram of a code wheel structure of the reagent disk in FIG. 2; FIG. 5 is a schematic view of a reagent disk outer shell disposed at the periphery of the reagent disk; fig. 6 is a schematic diagram of the photosensor arrangement of the reagent disk of fig. 2.

In the present application, the reagent disk 3 has an inner ring reagent disk and an outer ring reagent disk which are concentrically arranged, the inner ring reagent disk being divided by a plurality of sector areas 32 which are uniformly arranged;

the outer ring reagent disk includes a plurality of ear areas 33 adjacent to the sector area 32 and evenly arranged around the outer circumference of the inner ring reagent disk;

also included is an outer ring disposed on the outer ring reagent disk, and a sample tube placement area 34 in front of the adjacent ear area 33.

In this embodiment, the sector area 32 is a triangular sector area with a triangular sector cross section, and a plurality of triangular sector areas enclose an inner ring structure;

the inner ring of the lug area 33 and the outer ring of the fan-shaped area 32 are of a shared arc wall surface, and the lug area 33 is provided with an arc trapezoid structure with an inner side wall surface and an outer side wall surface which are arc wall surfaces;

also included is a fan-shaped kit 301 that mates with the fan-shaped region 32, and a cambered trapezoidal kit 302 that mates with the ear region 33.

Specifically, according to the use condition of sample detection, in the process of sampling and testing once, each sample needs to be tested for different biochemical items, the reagent disk 3 is provided with an inner ring and an outer ring which are concentrically arranged, the inner ring reagent disk is divided into a plurality of sector areas 32 which are uniformly arranged, and each sector area 32 is provided with a first reagent position for placing different detection reagents. Preferably, the scalloped region 32 is configured as a triangular scalloped region having a triangular cross-section such that a plurality of triangular scalloped regions define an inner annular ring configuration. The inner ring reagent disk can be preferably arranged into 10 sector areas or 12 sector areas according to 10 or 12 examination items so as to meet the arrangement requirement of 10 or 12 reaction reagents in public health examination items. The inner ring reagent disk is used for storing the R1 reagent of the double reagent detection item or the R1 reagent of the single reagent detection item.

Meanwhile, as the public and public health detection relates to the double reagent items and the single reagent items at the same time, in order to facilitate the distinction of different reagents, the outer ring reagent disk is arranged into a plurality of ear areas 33 which are uniformly arranged, the inner sides of the ear areas 33 are equivalent to the outer sides Zhou Najing of the inner ring reagent disk, and the outer sides of the ear areas 33 also adopt cambered structures. Preferably, the ear portion 33 is designed such that the inner side wall surface and the outer side wall surface are arc-shaped wall surfaces, and the inner side wall surface and the outer side wall surface are connected by the side wall surface extending in the radial direction to form an arc-shaped trapezoid structure.

To ensure the rotation balance of the reagent disk, the plurality of lug areas 33 of the outer ring reagent disk are set to 8, two adjacent lug areas are set to one group, and the outer ring of the inner ring reagent disk is uniformly arranged through the four lug areas 33. The ear region 33 of the outer ring reagent disk is used to place the R2 reagent of the dual reagent test item. The inner ring reagent disk and the outer ring reagent disk are respectively arranged into the fan-shaped area 32 and the ear area 33 and used for distinguishing the R1 reagent from the R2 reagent, so that the accuracy of identifying the reagent container is improved.

Sample placement areas 34 (sample holders not shown) are reserved between the ear areas 33, and the outer circumference of the reagent disk 3. Specifically, the sample placement area 34 is used for placing a blood collection tube, the blood collection tube occupies a small space, is suitable for a cylindrical structure of the blood collection tube, can be combined with the outer ring reagent disk and the periphery of the reagent disk, and achieves the combined arrangement of the sample tube and the detection reagent under the condition that the size of the reagent disk is reduced as much as possible, so that the purpose of fully utilizing the space is achieved.

In the present application, the reagent disk 3 comprises a reagent disk bottom plate 35, and the fan-shaped area 32 and the ear area 33 are surrounded by a thin-wall structure extending out of the reagent disk bottom plate 35;

the inner side of the thin-walled structure is convexly provided with vertically arranged ribs 37.

The outer periphery of the reagent disk bottom plate 35 is also provided with a reagent disk outer wall plate 38 with an annular structure, and the inner periphery of the reagent disk outer wall plate 38 encloses an inner cavity of the reagent disk;

the reagent disk outer wall plate 38 extends downwards to form a reagent disk lower edge part 39 with an annular structure, and a plurality of reagent disk slits penetrating through the thickness direction of the reagent disk lower edge part 39 are uniformly distributed;

the base plate 1 is further provided with a first photosensor 5 which is matched with the slit of the reagent disk and recognizes the rotation position of the reagent disk 3.

Preferably, the reagent disk slits include a reagent disk zero slit 391 and a reagent disk count slit 392, the reagent disk zero slit 391 has a first reagent disk spacing d1 from the reagent disk count slit 392, and the adjacent reagent disk count slit 392 has a second reagent disk spacing d2 from the reagent disk zero slit 391, and the first reagent disk spacing d1 is different from the second reagent disk spacing d2.

The reagent disk 3 comprises a reagent disk bottom 35, the fan-shaped region 32 and the ear region 33 being surrounded by a thin-walled structure extending over the reagent disk bottom 35. The inner wall surfaces of the fan-shaped region 32 and the ear region 33 are provided with a plurality of ribs 37 which are vertically distributed and are used for positioning and fixing the reagent kit arranged therein.

The outer periphery of the reagent disk bottom plate 35 is further provided with a reagent disk outer wall plate 38 with an annular structure, and the reagent disk outer wall plate 38 encloses an inner cavity of the reagent disk for protecting the reagent kit and the sample placed therein.

When the biochemical analyzer samples a reagent or a sample, the reagent or the sample is sucked by the sampling needle 4 by adjusting the reagent position or the sample position by rotating the reagent disk 3. When the existing reagent disk rotates and positions, the code disk is arranged on the periphery of the reagent disk, and a zero sensor is arranged on the inner side of the reagent disk to identify the position of the reagent disk. In order to reduce the number of reagent disk peripheral spaces occupied by the arrangement of the code disk, the reagent disk peripheral wall plate 38 is downwardly extended to form a reagent disk lower edge portion 39 with an annular structure, the reagent disk lower edge portion is of a thin-wall structure, and a plurality of reagent disk slits penetrating through the thickness direction of the reagent disk lower edge portion are uniformly distributed on the reagent disk lower edge portion.

At the same time, a first photoelectric sensor 5 is arranged, the first photoelectric sensor 5 is fixed on the substrate 1, the first photoelectric sensor 5 is matched with the slit of the reagent disk, and the rotating position of the reagent disk 3 is identified. Specifically, the reagent disk slots include reagent disk zero slots 391 and reagent disk counter slots 392, and a first reagent disk spacing d1 between a reagent disk zero slot 391 and a reagent disk counter slot 392 is provided that is different from a second reagent disk spacing d2 between adjacent reagent disk counter slots 392.

Preferably, the reagent disk zero slits 391 are set as zero sites of the reagent disk 3, the reagent disk zero slits 391 are set as three, and a first reagent disk interval d1 is arranged between two adjacent reagent disk zero slits; the reagent disk counter slits 392 are provided in a plurality, uniformly distributed along the outer periphery of the reagent disk lower edge portion 39, and two adjacent reagent disk counter slits 392 are used for measuring the rotation angle of the reagent disk 3. The rotation starting position of the reagent disk 3 and the rotation angle of the reagent disk 3 in the sampling process are identified through the reagent disk zero slot 391 and the reagent disk counting slot 392, so that the accurate measurement of the rotation angle of the reagent disk 3 is realized.

Of course, the first driving motor 31 that this application provided adopts step motor, reagent dish slit can only set up one on reagent dish lower edge portion 39, through first photoelectric sensor 5 and this reagent dish slit cooperation discernment reagent dish 3's zero position, utilize step motor and reagent dish 3's coaxial drive structure, when adopting step motor through discernment first driving motor 31, step motor's rotation angle discerns with the position of reagent dish upper segment kit, cambered surface trapezoidal kit and sample tube placement area, with reagent dish 3's zero position reagent dish slit, realize jointly that the rotation angle discerns and adjusts reagent dish 3.

In the application, the device further comprises a reagent disk shell 303 fixedly arranged on the substrate 1, the reagent disk 3 is rotatably arranged in the reagent disk shell 303, a photoelectric acquisition window 306 is arranged on the outer ring of the reagent disk shell 303, and the first photoelectric sensor 5 is arranged on the photoelectric acquisition window 306;

the first photoelectric sensor 5 has a U-shaped groove photoelectric pickup portion that mates with the reagent disk lower edge portion 39.

Further, the photoelectric sensor support column 51 extends out of the substrate 1, the first photoelectric sensor 5 adopts a U-shaped photoelectric position sensor, the reagent disk slit falls on the groove-shaped portion of the U-shaped photoelectric position sensor, the emitter and the receiver of the first photoelectric sensor are respectively located on two sides of the U-shaped groove and form an optical axis, when the reagent disk slit is in photoelectric conduction through the U-shaped groove, when the reagent disk lower edge 39 passes through the U-shaped groove to block the optical axis, when the reagent disk slit on the reagent disk lower edge 39 passes through the U-shaped groove of the first photoelectric sensor 5 to communicate the optical axis, counting and position identification are achieved, a switching value signal for detecting the rotating position of the reagent disk is generated by utilizing the photoelectric switch, and then the rotating angle of the reagent disk 3 is identified.

The reagent disk 3 is internally provided with a reagent box and a sample tube, the reagent box comprises a sector reagent box 301 arranged in a sector area 32 and a circular arc trapezoid reagent box 302 arranged in an ear area 33, and the reagent boxes with two structures are used for respectively storing R1 and R2 reagents. The sampling position of the reagent disk 3 is adjusted by rotating the reagent disk 3, a reagent disk housing 303 is fixedly arranged on the substrate 1 in order to ensure the safety of the reagent disk 3 in the detection process, the reagent disk housing 303 is provided with an inner cavity 304 with a cylindrical structure, and the reagent disk 3 is arranged in the inner cavity 304 of the reagent disk housing 303. Preferably, the reagent disk housing 303 is a hard metal housing with a thin wall structure, and a flange 305 is arranged at the top opening of the reagent disk housing 303 for improving the structural strength. The bottom wall edge of the reagent disk housing 303 is provided with a photoelectric collection window 306, and the first photoelectric sensor 5 extends into the photoelectric collection window 306 and cooperates with the lower edge 39 of the reagent disk to detect the rotational position of the reagent disk 3.

The prior reagent disk driving structure is characterized in that a driving motor is arranged at the bottom of a reagent disk, power is output through a belt pulley, and the driving motor is connected with a transmission shaft extending out of the reagent disk through the belt pulley to carry out power transmission.

The application provides a reagent dish 3 has reduced the overall dimension of reagent dish through the mode with integrated arrangement in reagent dish 3 of kit and sample tube, for reducing the structural complexity to reagent dish 3 rotation drive, has cancelled transmission shaft and belt transmission structure that stretches out on the reagent dish. A first driving motor 31 which can change frequency to rotate and adjust is fixedly arranged on the base plate 1, and the driving shaft of the first driving motor 31 is directly connected with the bottom of the reagent disk 3.

Further, a drive connection seat 307 is provided in the middle of the reagent disk 3, a shaft hole is provided on the drive connection seat 307, and a drive shaft of the first drive motor 31 is fixedly mounted in the shaft hole. The first driving motor 31 directly drives the reagent disk 3 to rotate, so that the rotating driving structure of the reagent disk 3 is reduced, the driving structure is optimized, and the volume of the driving structure is reduced. To ensure structural stability of the long-term rotational operation of the reagent disk 3. The bottom surface at reagent dish 3 distributes many reagent dish reinforcing plates 36 that stretch out along its radial, the thickness direction of reagent dish reinforcing plate 36 is along the circumference arrangement of drive connecting seat 307, and the length direction stretches out along radial, reagent dish reinforcing plate 36 is in the bottom wall face of high direction rigid coupling in reagent dish 3, first driving motor 31 output power, pass through drive connecting seat 307 transmission power, and through many reagent dish reinforcing plates 36, drive reagent dish 3 rotation on the whole, the rotation moment that will first driving motor 31 transmission disperses to the whole bottom wall face of reagent dish 3, avoid stress concentration, guarantee the transmission structural stability of reagent dish 3 long-term work.

As shown in fig. 7 to 11, fig. 7 is a sectional view showing the mounting structure of a reaction disk in a biochemical analyzer according to the present utility model; FIG. 8 is a schematic view of the structure of the incubator in the reaction plate of FIG. 7; FIG. 9 is an exploded view of the drive structure of the reaction disk of FIG. 7; FIG. 10 is a schematic view showing the front structure of the reaction plate of FIG. 7; FIG. 11 is a schematic view showing a back structure of the reaction plate of FIG. 7.

In the application, the reaction disk 2 comprises an incubation pot 21 fixedly arranged on a base plate 1, a bracket supporting seat 211 is coaxially arranged in the incubation pot 21, and a reaction cup bracket 23 with a disk-shaped structure is arranged on the bracket supporting seat 211;

the second driving motor 24 is coaxially arranged at the bottom of the incubation pot 21, and a bracket transmission shaft 241 connecting the second driving motor 24 and the reaction cup bracket 23 is arranged in the bracket supporting seat 211.

An outer ring of the incubation pot 21 is provided with an incubation track 22 which is annularly arranged;

the annular outer ring 231 of the cuvette holder 23 is uniformly distributed with a plurality of cuvette placement holes 232, and the cuvette placement holes 232 and the incubation track 22 incubate the cuvette.

The application provides a biochemical analyzer, still have with reagent dish 3 parallel arrangement's reaction dish 2, reaction dish 2 is including adorning the incubation pot 21 on base 1 admittedly, the incubation track 22 of round annular arrangement has been arranged in the incubation pot 21, still have reaction cup bracket 23, a plurality of reaction cup place holes 232 have been arranged to the annular outer lane 231 of reaction cup bracket 23, arrange the reaction cup support in every reaction cup place hole 232, the reaction cup is placed in the reaction cup place hole 232 one by one after, the bottom of reaction cup falls on incubation track 22, through rotating reaction cup bracket 23, realize the continuous incubation of reaction cup on the reaction cup bracket 23 and switch to different stations.

In this embodiment, the middle part of the reaction cup bracket 23 is a rotation driving part falling on the bracket supporting seat 211, the rotation driving part is a bracket mounting plate 233 in a disc shape, a plurality of protruding parts 234 are distributed at intervals along the radial direction, and the protruding ends of the protruding parts 234 are connected with an annular outer ring 231.

The inner ring of the reaction cup bracket 23 axially extends out of a bracket lower edge 237, and a plurality of bracket slits are distributed between the extending ends of the bracket lower edge 237;

a second photoelectric sensor 25 matched with the slit of the bracket is fixedly arranged in the incubation pot 21.

The middle part of the cuvette holder 23 is a holder mounting plate 233 for transmitting a rotational driving force, and a holder support 211 for supporting the cuvette holder 23 and transmitting the rotational driving force of the cuvette holder 23 is coaxially arranged inside the incubation pot 21. Specifically, the second driving motor 24 is disposed at the bottom of the incubation pot 21, the driving shaft of the second driving motor 24 is extended into the bracket supporting seat 211, and the bracket driving shaft 241 is disposed in the bracket supporting seat 211, including a first connection end connected to the driving shaft of the second driving motor 24, and a second connection end connected to the middle of the cuvette bracket 23.

A rotating bearing 242 is also disposed in the bracket support 211, and the bracket transmission shaft 242 is axially pressed against the rotating bearing 242. The bearing step 212 for supporting the rotary bearing 242 is arranged in the bracket supporting seat 211, the outer ring of the rotary bearing 242 is supported on the bearing step 212, and the inner ring of the rotary bearing 242 is embraced on the bracket transmission shaft 241.

The second connecting end of the bracket transmission shaft 241 connected with the reaction cup bracket 23 is in a flange structure, correspondingly, the middle part of the reaction cup bracket 23 provides rotation driving power through a disk-shaped bracket mounting disk 233, and the reaction cup bracket 23 is fixedly arranged at the second connecting end of the bracket transmission shaft 241 through the bracket mounting disk 233.

The cuvette holder 23 is connected to a holder drive shaft 241 by a holder mounting plate 233 for transmitting rotational power, and a plurality of cuvette placement holes 232 are arranged by an annular outer ring 231 for placing the cuvette. A plurality of extending parts 234 extending along the radial direction are also arranged between the bracket mounting disc 233 and the annular outer ring 231 at intervals, and the reaction cup bracket 34 forms a rotating support structure of the reaction disc by the bracket mounting disc 233, the extending parts 234 and the annular outer ring 231, so that the stability of the rotating structure is ensured.

Further, the protruding portion 234 includes five protruding portions uniformly connected between the bracket mounting plate 233 and the annular outer ring 231, and each protruding portion further protrudes vertically from the inner side thereof and connects the bracket reinforcing ribs 235 between the bracket mounting plate 233 and the annular outer ring 234, further improving the power transmission stability during rotation.

When detecting the rotation of the cuvette, the cuvette 2 needs to identify the position of each cuvette. The inner ring of the reaction cup bracket 23 is further extended with a bracket lower edge part 236 along the axial direction, the bracket lower edge part 236 and the annular outer ring 231 are of an integral connection structure, a plurality of bracket slits 237 are distributed between the extended ends of the bracket lower edge part 236, specifically, the bracket slits 237 comprise bracket zero slits and bracket counting slits, a first bracket interval between the bracket zero slits and the bracket counting slits is different from a second bracket interval between the adjacent counting slits, and therefore zero positions in the rotation process of the bracket are recorded and positions of different reaction cups based on the zero positions in the rotation process of the bracket are realized. Preferably, the bracket lower edge portion is arranged inside the annular outer ring.

The second photosensor 25 is fixedly installed in the incubation pot 21 in accordance with the arrangement position of the lower edge 237 of the bracket. The reaction cup of adaptation reaction dish 2 by reaction cup bracket 23 outer lane, with the incubation track 22 cooperation of incubation pot 21 outer lane carry out the incubation reaction of reaction cup internal sample, after the space of bracket supporting seat 211 has been arranged to the inner circle of incubation pot 21, still can leave great surplus cavity, set up the bracket lower limb portion 237 in the inboard of annular outer lane 231, arrange the second photoelectric sensor mount pad in surplus cavity, the second photoelectric sensor 25 adopts split type photoelectric sensor, its transmitting end and receiving end are located the both sides of bracket lower limb portion 237 respectively, the cable of second photoelectric sensor 25 is drawn forth by the bottom of incubation pot 21.

By utilizing the internal allowance cavity of the incubation pot 21 to monitor the position of the reaction cup bracket 23, an independent code disc is not required to be arranged on the periphery of the incubation pot 21 to monitor the position of the reaction cup bracket 23, so that monitoring components on the periphery of the incubation pot 21 are reduced, the space occupation of the incubation pot can be further reduced, and the space occupation of a biochemical analyzer can be further reduced.

Of course, depending on the coaxial driving structure of the second driving motor 22 and the reaction disc 2, the bracket slit 237 may be provided as one piece on the bracket lower edge 236, or provided on the bracket 23 with a protruding portion matched with the second photoelectric sensor 25, by the identifying structure of the second photoelectric sensor 25 and the bracket lower edge 237 below the bracket 3, for example, when the bracket lower edge 236 is provided, a single bracket slit 237 is provided to be matched with the second photoelectric sensor 25 for zero position identification, by the second driving motor 22 adopting a stepping motor, the rotation position and rotation angle of the reaction disc 2 are identified by the rotation angle of the stepping motor; or the protruding part on the bracket 23 and the second photoelectric sensor 25 are arranged to perform zero position identification through shielding, and when the position of the reaction disk 2 is not shielded, the position identification is performed in cooperation with the second driving motor 22.

In this embodiment, an inner concave installation sink 213 is disposed on the outer periphery of the incubation pot 21, an insulation outer layer 26 is further fixedly mounted on the outer periphery of the incubation pot 21, insulation protrusions are disposed on the inner ring of the insulation outer layer 26, and the insulation outer layer 26 is pressed in the installation sink 23 by the insulation protrusions.

An incubation track 22 is arranged in the incubation pot 21, wherein incubation liquid is needed to be filled, and the incubation is realized by adopting a water bath mode for the reaction cup. The concave installation sinking groove 213 is arranged on the periphery of the incubation pot 21, the outer periphery of the incubation pot 21 is fixedly provided with the heat-insulating outer layer 26, the inner ring of the heat-insulating outer layer 26 is provided with heat-insulating protrusions, and the heat-insulating protrusions are pressed in the installation sinking groove 213 and are used for positioning the heat-insulating outer layer and the installation position of the incubation pot 21 on one hand, meanwhile, the heat-insulating thickness of the heat-insulating outer layer is increased, and the heat-insulating capability of the incubation pot is improved.

Further, the insulating outer layer 26 includes a plurality of segments disposed around the outer periphery of the incubator pan and spaced apart. By arranging the heat-insulating outer layer 26 and the incubation pot 21 in a sectional assembly structure, the structures such as a water inlet channel, a water outlet channel, thermal protection and the like are reserved on the incubation pot 21, and the convenience of the installation structure of the incubation pot is improved.

The outer ring of the incubation pot 21 is also provided with a plurality of mounting lugs 27, a plurality of support columns extend out of the base plate 1, the extending positions of the support columns correspond to the positions of the mounting lugs 27 on the incubation pot, the support columns are connected with the mounting lugs 27, the incubation pot 21 is supported above the base plate 1, and a mounting space of the second driving motor 24 is reserved between the incubation pot 21 and the base plate 1. Meanwhile, after the incubation pot 21 is set up by the support column, the incubation pot and the reagent tray 3 are kept at the same arrangement height, so that the sampling needle can sample in the reagent tray and can be added into the reaction cup.

The reagent disk 3 and the reaction disk 2 are disposed close to each other, and the sampling needle 4 includes two sampling needles disposed between the reagent disk 3 and the reaction disk 2 and close to both ends in the substantially width direction, respectively. The sampling needle 4 comprises a driving device, a sampling arm arranged at the driving end of the driving device, and a sampling needle head extending out of the sampling arm. Two sampling needles are respectively arranged at two ends of the width direction of the substrate, and the two sampling needles are used for sampling reagents or samples in the reagent tray in a cross sampling and sample adding mode, so that the sample is added into the reaction cup, and the sample adding efficiency is improved.

Two flushing cups 5 are arranged between the reagent disk 3 and the reaction disk 2, the two flushing cups 5 are arranged in parallel and correspond to the positions of the two sampling needles 4 respectively, and after the sampling needles 4 are used for sampling, the sampling needles 4 are flushed, so that liquid in the sampling needles is retained between two adjacent sampling.

The sampling needle 4 is a retractable sampling needle with lifting and rotating functions, and when the sampling needle 4 is used for extracting liquid between the reagent disk 3 and the reaction disk 2, the height of the swing arm is higher than that of the reagent disk 3 and the reaction disk 2, so that after the upper cover of the biochemical analyzer is closed, the highest point of the sampling needle limits the whole height of the instrument after the upper cover is covered. Through setting up the sample needle to the collapsible sample needle of accomodating of collapsible in the direction of height, reduced the whole height that upper cover lid was adorned, further reduced biochemical analyzer and transferred the whole volume in-process, improved biochemical analyzer and transferred the convenience.

Further, the sampling needle 4 comprises a sampling needle seat, a first motor mounting plate is arranged on the first side of the sampling needle seat, a rotating motor is arranged on the first motor mounting plate, a rotating belt wheel is arranged on the second side of the sampling needle seat, an output shaft of the rotating motor is connected with the rotating belt wheel through a transmission belt, and the sampling needle is driven to swing to switch positions between the reaction plate and the reagent plate. The rotating belt wheel is coaxially provided with a push rod, the end part of the push rod is connected with a swing arm, and the push rod can move up and down along the axial direction. When the sampling needle works, the sampling needle is extended to the working height by the action of the push rod, and the sampling needle is driven to move up and down in the cleaning process; the sampling needle is used for completing the liquid extraction work, and when the biochemical analyzer is retracted and transferred, the sampling needle is automatically retracted, and the sampling needle head of the sampling needle is recovered into the flushing cup, so that the height of the biochemical analyzer is reduced when the biochemical analyzer is retracted.

A washing needle assembly 6 and a stirring assembly 7 are also arranged on the base 1 for washing the reaction cup on the reaction plate 2 and stirring after addition of reagents and samples.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The 300-speed portable biochemical analyzer is characterized by comprising a substrate, a reaction disc and a reagent disc, wherein the reaction disc and the reagent disc are arranged on the substrate along the length direction, a sampling needle is further arranged on the substrate, and the sampling needle is provided with a contractible and storable swing arm;

2. The 300-speed portable biochemical analyzer according to claim 1, wherein an inner ring of the reagent disk is arranged as a reagent arrangement area, and an outer ring of the reagent disk is arranged as a sample arrangement area;

3. The 300-speed portable biochemical analyzer according to claim 2, wherein the sector area is a triangular sector area with a triangular sector cross section, and a plurality of triangular sector areas enclose an inner ring circular structure;

4. The 300-speed portable biochemical analyzer according to claim 3, wherein the reagent disk comprises a reagent disk bottom plate, the fan-shaped region and the ear region being surrounded by a thin-walled structure protruding from the reagent disk bottom plate; the inner side of the thin-wall structure is convexly provided with ribs which are vertically arranged;

5. The 300-speed portable biochemical analyzer according to claim 4, wherein said reagent disk bottom plate, said fan-shaped region, said ear region and said reagent disk outer wall plate are integrally formed with said reagent disk of plastic material.

6. The 300-speed portable biochemical analyzer according to claim 5, further comprising a reagent disk housing fixedly mounted on the substrate, the reagent disk being rotatably disposed within the reagent disk housing, an outer ring of the reagent disk housing being provided with a photoelectric collection window, the first photoelectric sensor being mounted to the photoelectric collection window;

7. The 300-speed portable biochemical analyzer according to claim 1, wherein the reaction plate comprises an incubation pot fixedly mounted on the substrate, wherein a bracket support seat is coaxially arranged inside the incubation pot, and a reaction cup bracket with a disk-shaped structure is arranged on the bracket support seat;

the bottom of the incubation pot is coaxially provided with a second driving motor, and a bracket transmission shaft which is connected with the second driving motor and the reaction cup bracket is arranged in the bracket supporting seat.

8. The biochemical analyzer according to claim 7, characterized in that the outer ring of the incubation pot is arranged with an annularly arranged incubation track;

9. The 300-speed portable biochemical analyzer according to claim 8, wherein the middle part of the reaction cup bracket is a rotation driving part falling on the bracket supporting seat, the rotation driving part is provided with a plurality of protruding parts at intervals along the radial direction, and the protruding ends of the protruding parts are connected with the annular outer ring;

10. The 300-speed portable biochemical analyzer according to claim 9, wherein an inward concave installation sink is arranged on the periphery of the incubation pot, an insulation outer layer is fixedly arranged on the periphery of the incubation pot, an insulation protrusion is arranged on an inner ring of the insulation outer layer, and the insulation outer layer is pressed in the installation sink by the insulation protrusion.