CN211576968U - Detection module for sample analyzer and sample analyzer - Google Patents

Detection module for sample analyzer and sample analyzer Download PDF

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Publication number
CN211576968U
CN211576968U CN201922133098.9U CN201922133098U CN211576968U CN 211576968 U CN211576968 U CN 211576968U CN 201922133098 U CN201922133098 U CN 201922133098U CN 211576968 U CN211576968 U CN 211576968U
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reaction cup
detection module
detection
sample analyzer
cuvette
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赖华忠
梁金
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Shenzhen Dymind Biotechnology Co Ltd
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Shenzhen Dymind Biotechnology Co Ltd
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Priority to PCT/CN2020/132464 priority patent/WO2021104498A1/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/76Chemiluminescence; Bioluminescence
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/86Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood coagulating time or factors, or their receptors

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  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Urology & Nephrology (AREA)
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Abstract

The utility model discloses a detection module and sample analyzer for sample analyzer, this detection module include the casing, the casing is formed with detects the position, and at least reaction cup enters into be provided with on the route of detecting the position the direction of preventing rubbing for reaction cup enters into when detecting the position, the direction of preventing rubbing can contact with reaction cup to inject reaction cup in the predetermined range that can not touch the inner wall that detects the position, the direction of preventing rubbing is less than the hardness of reaction cup's the cup wall with the at least some surface hardness of reaction cup contact. The utility model discloses can prevent to cause the scratch to the reaction cup when placing the reaction cup toward detecting the position, reduce the error of optical detection result.

Description

Detection module for sample analyzer and sample analyzer
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to a detection module and sample analyzer for sample analyzer.
Background
In clinical examination equipment, such as sample analyzers, e.g. chemiluminescence analyzers and blood coagulation analyzers, during detection, a reaction cup needs to be placed in a detection position of a detection module, and data detection is performed by an optical method. During detection, the detection position also needs to keep the object to be detected in the reaction cup within a constant temperature range, so that the detection module needs to be processed by a metal material with good heat conduction, during detection, the reaction cup is placed in the detection position through a mechanical handle for detection, and after detection is finished, the reaction cup is taken away by the mechanical handle and discarded.
However, when the reaction cup is taken and placed to the detection position in the detection process, the detection module is made of a metal material, and the reaction cup is made of a plastic material, so that the cup wall of the reaction cup is easily scratched, and the optical detection effect is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be not enough to prior art, the utility model provides a detection module and sample analyzer for solve the problem that the cup wall of reaction cup is easily by the scratch in the testing process.
To this end, according to a first aspect, an embodiment provides a detection module for a sample analyzer, comprising a housing formed with a detection site, the detection module further comprising an anti-friction guide;
the anti-friction guide piece is arranged on a path of at least the reaction cup entering the detection position, so that when the reaction cup enters the detection position, the anti-friction guide piece can be in contact with the reaction cup and limits the reaction cup in a preset range where the reaction cup cannot touch the inner wall of the detection position, and the surface hardness of at least one part of the anti-friction guide piece, which is in contact with the reaction cup, is lower than the hardness of the cup wall of the reaction cup.
As a further alternative of the detection module, the anti-friction guide includes an anti-friction guide body and an anti-friction layer attached to the anti-friction guide body, the anti-friction layer being formed of a first hardness material having a hardness lower than that of a cup wall of the reaction cup.
As a further alternative to the detection module, the anti-friction guide is formed of the first hardness material.
As a further alternative of the detection module, the first durometer material includes at least one of polyoxymethylene, nylon.
As a further alternative of the detection module, the anti-friction guide is disposed outside the housing at an entrance of the detection site, and the anti-friction guide limits the cuvette within a predetermined range when the cuvette enters the detection site.
As a further alternative of the detection module, the antifriction guide has a guide hole having a smaller aperture than the aperture of the entrance.
As a further alternative of the detection module, the anti-friction guide is obliquely disposed adjacent to at least a portion of the guide hole to form a guide surface, and/or the periphery of the guide hole is formed with a chamfer.
As a further alternative of the detection module, the housing is further formed with a light source entry hole, and the detection position, the light source entry hole and the anti-friction guide member are all provided in plurality and are arranged in one-to-one correspondence.
As a further alternative of the detection module, a plurality of the antifriction guides are connected to each other to form an antifriction cover, which is provided on the housing.
As a further alternative of the detection module, the anti-friction guide is provided inside the housing and extends to the detection position, and the anti-friction guide limits the cuvette within a predetermined range when the cuvette enters the detection position.
As a further alternative of the detection module, an elastic limiting member is further disposed inside the housing, and the elastic limiting member can apply a pressing force or a clamping force to the reaction cup, so that the reaction cup and the detection module are integrated.
As a further alternative of the detection module, the pressing force or the clamping force fixes the reaction cup opposite to the light source incidence hole.
As a further alternative of the detection module, the elastic limiting member is disposed on one side of the detection position, and when the reaction cup enters the detection position, the elastic limiting member forms a pressing force on one side of the reaction cup.
As a further alternative of the detection module, the elastic limiting member is circumferentially disposed in the detection position, and when the reaction cup enters the detection position, the elastic limiting member forms a clamping force on the outer periphery of the reaction cup.
As a further alternative of the detection module, the elastic limiting member is located on a pushing mechanism capable of outputting reciprocating motion, and the pushing mechanism is installed in the casing and used for pushing the elastic limiting member to approach or leave the reaction cup located in the detection position.
According to a second aspect, an embodiment provides a sample analyzer, comprising a detection module according to the first aspect of the present invention
Implement the embodiment of the utility model provides a, will have following beneficial effect:
the anti-friction guide piece is arranged on the path of the reaction cup entering the detection position, and can be preferentially contacted with the reaction cup, so that a guide effect is formed on the moving path of the reaction cup, and the reaction cup is prevented from touching the inner wall of the detection position; meanwhile, the hardness of the surface of at least one part of the anti-friction guide piece is lower than that of the wall of the reaction cup, so that the reaction cup can be prevented from being scratched when the reaction cup is placed at a detection position, and the error of an optical detection result is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 shows a schematic structural diagram of a detection module according to an embodiment of the present invention;
fig. 2 illustrates an elastic limiting member and an installation diagram thereof according to an embodiment of the present invention;
FIG. 3 shows a cross-sectional view through the reaction cup and spring of FIG. 2;
fig. 4 is a schematic structural view of an anti-friction guide provided according to an embodiment of the present invention;
fig. 5 illustrates another elastic limiting member and an installation diagram thereof according to an embodiment of the present invention;
fig. 6 illustrates a further elastic limiting member and an installation diagram thereof according to an embodiment of the present invention;
fig. 7 shows another elastic limiting member and an installation diagram thereof according to an embodiment of the present invention.
Description of the main element symbols:
100-a housing; 200-antifriction guides; 300-antifriction cover plate; 400-elastic limit piece; 500-mounting grooves; 110-detection bit; 120-light source entry hole; 201-antifriction guide body; 202-an anti-friction layer; 210-a pilot hole; 220-chamfering; 410-a spring; 420-spring plate; 430-torsion spring; 440-a ring-shaped piece; 111-an inlet; 441-force releasing slitting; 1000-reaction cup.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the utility model provides a sample analyzer for realize the detection of clinical each item function, this sample analyzer can be chemiluminescence analysis appearance, blood coagulation analysis appearance etc.. The sample analyzer is provided with a detection module, the detection module can provide one or more detection positions for the reaction cup, and the aim of preventing the cup wall of the reaction cup from being scratched in the detection process can be fulfilled.
Referring to fig. 1-3, in an embodiment of the present invention, the detecting module includes a housing 100, the housing 100 may be made of metal or other material with good thermal conductivity, and the housing 100 is formed with a detecting position 110 and a light source penetrating hole 120 communicated with the detecting position 110.
It is understood that the light source entry hole 120 can guide a light beam to the detection position 110, and when the cuvette 1000 is placed in the detection position 110, the optical detection instrument can provide the light beam for irradiating the cuvette 1000 and obtain information of the measured sample in the cuvette 1000 after being irradiated by the light beam, so as to perform the functional analysis.
An anti-friction guide 200 is further provided outside or inside the housing 100, and the anti-friction guide 200 is provided at least on a path of the cuvette 1000 entering the detection site 110, so that when the cuvette 1000 enters the detection site 110, the anti-friction guide 200 can contact the cuvette 1000 and limit the cuvette 1000 within a predetermined range that does not touch the inner wall of the detection site 110, and the hardness of the surface of at least a portion of the anti-friction guide 200 contacting the cuvette 1000 is lower than that of the wall of the cuvette 1000.
It should be noted here that the anti-friction guide 200 is disposed at a position to regulate the path of the cuvette 1000, so that the wall of the cuvette 1000 does not rub against the inner wall of the detection site 110 at least when the cuvette 1000 enters the detection site 110, and whether there is friction between the wall of the cuvette 1000 and the inner wall of the detection site 110 is not limited when the cuvette 1000 is withdrawn from the detection site 110. The surface of the anti-friction guide 200 contacting the reaction cup 1000 may be a continuous whole surface, such as the anti-friction guide 200 of fig. 1, but of course, the surface contacting the reaction cup 1000 may be discontinuous, and it is understood that the anti-friction guide 200 is composed of several parts, for example, the anti-friction guide 200 of fig. 1 may be uniformly divided into several parts.
It should be noted that the antifriction guide 200 may be configured such that the hardness of all surfaces of the antifriction guide 200 contacting the reaction cup 1000 is lower than the hardness of the cup wall of the reaction cup 1000, and in this case, the antifriction guide 200 may be integrally formed of the same material. In addition, the anti-friction guide 200 may be disposed such that a portion of the surface contacting the cuvette 1000 has a hardness lower than that of the wall of the cuvette 1000, and it is preferable to ensure that the portion of the surface sufficiently covers the irradiation range of the light beam without affecting the detection result.
In the embodiment of the present application, the anti-friction guide 200 is disposed on the path of the cuvette 1000 entering the detection position 110, and the anti-friction guide 200 can preferentially contact the cuvette 1000, so as to form a guiding function on the moving path of the cuvette 1000 and prevent the cuvette 1000 from touching the inner wall of the detection position 110; meanwhile, since the hardness of the surface of at least a portion of the anti-friction guide 200 is lower than the hardness of the wall of the cuvette 1000, the cuvette 1000 can be prevented from being scratched when the cuvette 1000 is placed in the detection position 110, and the error of the optical detection result can be reduced.
In some embodiments, referring to fig. 4, the anti-friction guide 200 includes an anti-friction guide body 201 and an anti-friction layer 202 connected to the anti-friction guide body 201, wherein the anti-friction layer 202 is formed of a first hardness material having a hardness lower than that of the wall of the reaction cup 1000.
At this time, only the anti-friction layer 202 contacts the reaction cup 1000, and the anti-friction guide body 201 not contacting the reaction cup 1000 can be made of a material with higher rigidity, hardness and the like than the anti-friction layer, so that the whole anti-friction guide 200 can not scratch the reaction cup 1000 and has better structural stability.
Preferably, the antifriction guide body 201 may be made of the same material as the housing 100, and in this case, when it is disposed outside the housing 100, the antifriction guide body 201 is used as a base, so that the entire antifriction guide 200 and the housing 100 can be assembled more stably, thereby maximizing the efficacy of the antifriction layer. The anti-friction layer 202 may be formed on the anti-friction guide body by various known means, such as coating, sputtering, thermal spraying, chemical deposition, electroplating, electroless plating, etc., or by attaching the anti-friction layer to the anti-friction guide body by screws, pins, adhesives, etc.
In some embodiments, referring to fig. 1, the anti-friction guide 200 may also be integrally formed of a first hardness material, for example, by a mold and integrally formed by casting, so as to reduce the difficulty of manufacturing the anti-friction guide 200 to some extent.
In some embodiments, the first hardness material may be selected according to practical requirements, wherein a better selection criterion is to make the hardness between the material used for the housing 100 and the material of the reaction cup 1000, so as not to lose its guiding function and scratch the cup wall of the reaction cup 1000.
In some specific embodiments, the first hardness material may be a non-metallic material such as polyoxymethylene, nylon, or the like, which is low in cost and convenient for obtaining materials.
In one embodiment, referring to fig. 1 to 3, the anti-friction guide 200 is disposed outside the housing 100 at the inlet 111 of the test site 110, and the anti-friction guide 200 limits the cuvette 1000 to a predetermined range when the cuvette 1000 enters the test site 110.
The anti-friction guide 200 is disposed outside the housing 100, and when the robot arm transports the cuvette 1000, the bottom of the cuvette 1000 first contacts the anti-friction guide 200, and at this time, the anti-friction guide 200 corrects the subsequent path of the cuvette 1000 from the bottom of the cuvette 1000, so that the cuvette 1000 does not contact the inner wall of the inspection site 110 throughout its entire travel.
Referring to fig. 2-3, taking the detection site 110 as a hole-shaped structure (not limited thereto), the cuvette 1000 is a cylindrical structure, and the anti-friction guide 200 may be designed to have a guide hole 210, the guide hole 210 is coaxially disposed with the entrance 111 of the detection site 110, the diameter of the guide hole 210 is smaller than the diameter of the entrance 111 of the detection site 110 and slightly larger than the outer diameter of the cuvette 1000, when the cuvette 1000 passes through the guide hole 210, the guide hole 210 can maintain the cuvette 1000 within the range of the diameter of the guide hole 210, and since the diameter of the guide hole 210 is smaller than the diameter of the detection site 110, the cuvette 1000 will not naturally contact the inner wall of the detection site 110.
In this case, the antifriction guide 200 is preferably fixed to the housing 100, and may be in close contact with the housing 100 or may have a certain gap.
In some embodiments, at least a portion of the anti-friction guide 200 adjacent to the guide hole 210 is inclined to form a guide surface, and/or the periphery of the guide hole 210 is formed with a chamfer 220 (shown in fig. 1), thereby facilitating the reaction cup 1000 to enter the test site 110 through the guide hole 210.
In some embodiments, the inspection position 110, the light source incident hole 120, and the anti-friction guide 200 are disposed in a plurality of positions, and the three positions correspond to each other, so that one set of inspection module can simultaneously perform the inspection of a plurality of cuvettes 1000.
It should be noted here that the detection module may be formed with a plurality of detection sets, for example, in the example shown in fig. 1, nine detection sets are provided, each detection set includes one detection position 110, one light source entry hole 120 and one anti-friction guide 200, and at this time, the detection position 110, the light source entry hole 120 and the anti-friction guide 200 are in corresponding relationship in position and number, and the one-to-one corresponding arrangement refers to this corresponding relationship.
Further, referring to fig. 1, in the embodiment where a plurality of inspection positions 110 are provided, a plurality of anti-friction guides 200 may be connected to each other to form an integrated anti-friction cover plate 300, and the anti-friction cover plate 300 is covered on the housing 100, thereby improving the integrity of the inspection module and facilitating the stable installation of the anti-friction cover plate 300 on the housing 100.
In another embodiment, the anti-friction guide 200 is disposed inside the housing 100 and extends to the test site 110, and the anti-friction guide 200 limits the cuvette 1000 to a predetermined range when the cuvette 1000 enters the test site 110.
It should be noted here that, in order to better exert the effect of the anti-friction guide 200, the anti-friction guide 200 is preferably disposed at the detection site 110 near the entrance 111 thereof, thereby preventing the cuvette 1000 from contacting the inner wall of the detection site 110 at the beginning of entering the detection site 110.
In addition, as a preferable mode, the anti-friction guide 200 is preferably configured to have a structure capable of being matched with the detection site 110, for example, when the detection site 110 has a hole-shaped structure, the anti-friction guide 200 may have a ring-shaped structure.
As another alternative, when the anti-friction guide 200 is disposed inside the casing 100, it may be disposed to be attached to the inner wall of the detection site 110, and it should be noted that the anti-friction guide 200 is not distributed over the entire inner wall of the detection site 110 to prevent the heat-conducting performance of the casing 100 from being affected.
On the other hand, in the working process of the manipulator transporting the cuvette 1000 and the self-moving mechanism of the sample analyzer (taking the blood coagulation analyzer as an example, the moving mechanism may be a sample adding mechanism, a sampling mechanism, etc.), the cuvette 1000 in the detection position 110 may generate a certain vibration, which may cause a relative movement between the cuvette 1000 and the light beam, which is obviously not favorable for obtaining an accurate detection structure.
In one embodiment, please refer to fig. 2-3, an elastic limiting member 400 is further disposed inside the housing 100, and the elastic limiting member 400 can form a pressing force or a clamping force on the cuvette 1000, so that the cuvette 1000 and the detection module are integrated.
Therefore, through the arrangement of the elastic limiting part 400, even if the equipment has a vibration phenomenon, the reaction cup 1000 can vibrate together with the detection module on the equipment, relative motion cannot occur between the equipment and the detection module, the consistency of the relative position relationship between the light beam irradiation route and the reaction cup 1000 can be improved, and the detection precision is improved.
Further, the pressing force or the clamping force fixes the cuvette 1000 at the position opposite to the light source incident hole 120, so that the cuvette 1000 can be maintained at the center of the light beam irradiation direction, and the light spot can be irradiated at the center of the cuvette 1000, thereby further improving the detection accuracy.
Taking the manner of forming the pressing force by the elastic limiting member 400 as an example, at this time, the elastic limiting member 400 is disposed at one side of the detection position 110, and when the cuvette 1000 enters the detection position 110, the elastic limiting member 400 forms the pressing force to one side of the cuvette 1000.
In other words, the elastic limiting member 400 is disposed within the range covered by the detecting position 110, when the reaction cup 1000 enters the detecting position 110, the reaction cup 1000 will press the elastic limiting member 400, so that the elastic limiting member 400 has a reverse acting force, and under the reverse acting force, the reaction cup 1000 will be pressed against the inner wall of the detecting position 110 to form a contact point B, as shown in fig. 3.
In one embodiment, referring to fig. 2, the elastic limiting member 400 is a spring 410, and a mounting groove 500 is disposed at a position adjacent to the detection site 110, the spring 410 is mounted in the mounting groove 500, and an axial direction of the spring 410 is perpendicular to an axial direction of the detection site 110.
It is understood that in the embodiment where a plurality of detection positions 110 are provided, the mounting groove 500 may be separately provided for each detection position 110, or may be integrally designed according to the actual situation, for example, in the example shown in fig. 2, the detection positions 110 located on the same straight line are regarded as a group, and the integrated mounting groove 500 is provided on one side of the group of detection positions 110.
In the embodiment that the elastic limiting member 400 forms the pressing force on the reaction cup 1000, in addition to the spring 410 used for the elastic limiting member 400, referring to fig. 5 and 6, the elastic limiting member 400 may further use an elastic sheet 420 and a torsion spring 430, and the function and the arrangement thereof may refer to the spring 410, which is not described again.
It should be noted that, in order to reduce the influence of the elastic limiting member 400 on the reaction cup 1000 to the maximum extent, the contact portions of the springs 410, the elastic pieces 420, or the torsion springs 430, etc. with the reaction cup 1000 are preferably polished or polished, and even a contact layer made of a non-metal material may be disposed on the surfaces of the springs, so as to avoid the reaction cup 1000 from being scratched by the elastic limiting member 400.
Taking the elastic limiting member 400 as an example to form the clamping force, at this time, the elastic limiting member 400 is circumferentially disposed in the detection position 110, and when the reaction cup 1000 enters the detection position 110, the elastic limiting member 400 forms the clamping force on the outer periphery of the reaction cup 1000.
In this case, the elastic stopper 400 is preferably configured to have a regular circular ring shape matching the outer shape of the reaction cup 1000, such as a ring plate 440 (as shown in fig. 7), and when the reaction cup 1000 enters the detection position 110, the ring plate 440 can form a uniform clamping force on the outer circumference of the reaction cup 1000 during the reaction cup 1000 passes through the ring plate 440, so as to fix the reaction cup 1000.
Further, referring to fig. 7, the ring-shaped piece 440 may be made of rubber, silicon rubber, or the like, and the ring-shaped piece 440 is uniformly provided with a plurality of force releasing slits and/or force releasing strips 441 along the circumferential direction thereof, the force releasing slits and/or force releasing strips 441 may be formed by cutting the ring-shaped piece 440, and the force releasing slits and/or force releasing strips 441 may release the tightening force of the ring-shaped piece 440 to a certain extent, so as to reduce the resistance of the ring-shaped piece 440 to the reaction cup 1000, and enable the reaction cup 1000 to smoothly enter the detection position 110.
In some embodiments, the elastic limiting member 400 may also be located on a pushing mechanism capable of outputting a reciprocating motion, and the pushing mechanism is installed in the housing 100 for pushing the elastic limiting member 400 to approach or move away from the reaction cup 1000 located in the detection position 110.
Through the arrangement of the pushing mechanism, the time for the elastic limiting part 400 to approach the reaction cup 1000 can be freely selected, preferably, after the reaction cup 1000 enters the detection position 110, the pushing mechanism is started to form extrusion force or clamping force on the reaction cup 1000, and in the process that the reaction cup 1000 enters the detection position 110, the time for the elastic limiting part 400 to contact with the reaction cup 1000 can be reduced, the limiting effect of the elastic limiting part 400 on the reaction cup 1000 is exerted to the maximum, and the negative influence of the elastic limiting part 400 on the reaction cup 1000 is reduced.
In some embodiments, the driving mechanism may employ an air cylinder, a linear motor, etc., and the elastic limiting member 400 is installed at the output end of the air cylinder or the linear motor, so that the pushing elastic limiting member 400 can be moved close to or away from the reaction cup 1000 in the detection position 110 by controlling the action of the air cylinder or the linear motor.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (16)

1. The detection module for the sample analyzer comprises a shell, wherein a detection position is formed on the shell, and the detection module is characterized by further comprising an anti-friction guide piece;
the anti-friction guide piece is arranged on a path of at least the reaction cup entering the detection position, so that when the reaction cup enters the detection position, the anti-friction guide piece can be in contact with the reaction cup and limits the reaction cup in a preset range where the reaction cup cannot touch the inner wall of the detection position, and the surface hardness of at least one part of the anti-friction guide piece, which is in contact with the reaction cup, is lower than the hardness of the cup wall of the reaction cup.
2. The detection module for a sample analyzer of claim 1, wherein the anti-friction guide includes an anti-friction guide body and an anti-friction layer attached to the anti-friction guide body, the anti-friction layer being formed of a first hardness material having a hardness lower than a hardness of a cup wall of the reaction cup.
3. The detection module for a sample analyzer of claim 2, wherein the anti-friction guide is formed of the first durometer material.
4. The detection module for a sample analyzer of claim 2, wherein the first durometer material includes at least one of polyoxymethylene, nylon.
5. The detection module for a sample analyzer of any one of claims 1 to 4, wherein the anti-friction guide is provided outside the housing at an entrance of the detection site, and the anti-friction guide restricts the cuvette within a predetermined range when the cuvette enters the detection site.
6. The detection module for a sample analyzer of claim 5, wherein the anti-friction guide has a guide hole having a smaller diameter than the entrance.
7. The detection module for a sample analyzer of claim 6, wherein at least a portion of the anti-friction guide adjacent to the guide hole is obliquely disposed to form a guide surface, and/or a periphery of the guide hole is formed with a chamfer.
8. The detection module for a sample analyzer as claimed in claim 5, wherein the housing further has a light source incident hole formed therein, and the detection site, the light source incident hole and the anti-friction guide are provided in plural numbers, one for one, in correspondence with each other.
9. The detection module for a sample analyzer of claim 8, wherein a plurality of the anti-friction guides are interconnected to form an anti-friction cover plate that is disposed on the housing.
10. The detection module for a sample analyzer of any one of claims 1-4, wherein the anti-friction guide is disposed inside the housing and extends to the detection position, the anti-friction guide limiting the cuvette within a predetermined range when the cuvette enters the detection position.
11. The detection module for a sample analyzer as claimed in claim 8, wherein an elastic stopper is further provided inside the housing, and the elastic stopper can apply a pressing force or a clamping force to the reaction cup, so that the reaction cup and the detection module are integrated.
12. The detection module of claim 11, wherein the pressing force or the clamping force fixes the cuvette opposite to the light source incident hole.
13. The detection module of claim 11, wherein the elastic stopper is disposed at one side of the detection position, and when the cuvette enters the detection position, the elastic stopper forms a pressing force against one side of the cuvette.
14. The detection module of claim 11, wherein the elastic stop member is circumferentially disposed within the detection position, and when the cuvette enters the detection position, the elastic stop member forms a clamping force on the outer circumference of the cuvette.
15. The detection module for a sample analyzer according to any one of claims 11-14, wherein the elastic retainer is located on a pushing mechanism capable of outputting a reciprocating motion, and the pushing mechanism is installed in the housing for pushing the elastic retainer to approach or separate from the reaction cup located in the detection position.
16. Sample analyzer, characterized in that it comprises a detection module for a sample analyzer according to any one of claims 1 to 14.
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