Photometric device and analyzer

Abstract

The utility model discloses a photometric device and an analyzer, and relates to the technical field of medical instruments. The light measuring device comprises a support, a container, a photometer assembly and a preheating assembly. The container is installed on the support, a containing space is formed in the container so that a reaction cup can be contained, a first hole and a second hole which are communicated with the containing space are formed in the container, and the first hole is used for being communicated with an excitation liquid storage mechanism through a pipeline so that excitation liquid can be injected into the reaction cup; the photometer assembly is mounted on the bracket and is used for detecting the luminous intensity of the substance in the reaction cup in the accommodating space through the second hole; the preheating assembly is installed on the support, wraps the pipeline and is used for heating the pipeline. The excitation liquid adding mechanism solves the technical problem that measurement is affected due to the fact that an existing excitation liquid adding mechanism is large in heat loss in the adding liquid conveying process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to a light measuring device and an analyzer. Background Art

[0002] Chemiluminescence, a method that uses antigen-antibody specific reactions to detect the concentration of a specific substance, has become increasingly popular in in vitro diagnostics due to its high sensitivity, wide linear dynamic range, long-lasting light signal, and minimal error. During the test, an excitation solution must be added to the reaction cup. Existing photometric devices typically incorporate an independent mechanism for adding the excitation solution, resulting in significant heat loss during the transfer process, which can affect measurement results. Utility Model Content

[0003] In view of this, the utility model provides a photometric device and an analyzer for solving the technical problem that the existing excitation liquid adding mechanism has a large heat loss during the transmission of the added liquid, thereby affecting the measurement.

[0004] In order to solve the above technical problems, the first technical solution adopted by the present invention is:

[0005] A light measuring device, comprising

[0006] Bracket;

[0007] a container mounted on the bracket, wherein a receiving space is provided in the container for receiving a reaction cup, and a first hole and a second hole are formed in the container and communicate with the receiving space, wherein the first hole is used to communicate with the excitation liquid storage mechanism through a pipeline so that the excitation liquid can be injected into the reaction cup;

[0008] a photometer assembly mounted on the bracket, the photometer assembly being used to detect the luminous intensity of the substance in the reaction cup in the receiving space through the second hole;

[0009] and a preheating component installed on the bracket, wherein the preheating component is wrapped around the pipeline and is used to heat the pipeline.

[0010] In some embodiments of the light measuring device, the light measuring device further includes a first light shielding member, which covers an area of the container corresponding to the first hole and at least covers a portion of the pipeline.

[0011] In some embodiments of the photometric device, the photometric device further includes a photometric disc and a first driving member. The photometric disc is accommodated in the accommodating space. The photometric disc is provided with a plurality of placement positions for the reaction cups along its circumference. The first driving member is mounted on the bracket. The output end of the first driving member passes through the outer wall of the container and is connected to the photometric disc, and is used to drive the photometric disc to rotate so that each reaction cup is opposite to the first hole and the photometer assembly.

[0012] In some embodiments of the photometric device, the bracket includes a support plate and a plurality of legs, the support plate is used to support the container, the photometer assembly and the preheating assembly, each of the legs is connected to the side of the support plate facing away from the container, and the first driving member is arranged on the side of the support plate facing away from the container.

[0013] In some embodiments of the light measuring device, the light measuring device further includes a heating component, which is accommodated in the receiving space and is used to generate heat to heat the substance in the reaction cup in the receiving space.

[0014] In some embodiments of the light measuring device, the heating component includes a heating film, a temperature sensor and a thermal insulation switch. The heating film is attached to the light measuring disc and is used to heat the light measuring disc. The temperature sensor is electrically connected to the heating film and is used to detect the temperature of the heating film. The thermal insulation switch is electrically connected to the temperature sensor and the heating film. The thermal insulation switch is used to disconnect the power supply to the heating film when the temperature of the heating film exceeds a limit value.

[0015] In some embodiments of the light measuring device, the light measuring device further includes a waste liquid component, which is installed on the container away from the bracket and is connected to the receiving space, and is used to discharge waste liquid in the container.

[0016] In some embodiments of the photometric device, the waste liquid component includes a second driving member, a pipette needle and a pipette seat, the pipette seat is installed on the container, the second driving member is installed on the pipette seat, the output end of the second driving member is connected to the pipette needle, and is used to drive the pipette needle close to or away from the reaction cup, and the pipette needle is used to discharge the waste liquid in the reaction cup.

[0017] In some embodiments of the light measuring device, the light measuring device further includes a heat-insulating element, which is wrapped around the side wall of the container to keep the container warm.

[0018] In order to solve the above technical problems, the second technical solution adopted by the present invention is:

[0019] An analyzer includes the light measuring device described in the above embodiment.

[0020] The implementation of the present invention will have at least the following beneficial effects:

[0021] The above-mentioned photometric device is applied to the analyzer, which can enable itself and the analyzer to have the technical effect of improving the accuracy of the photometric measurement results. Specifically, the photometric device of the utility model is provided with a preheating component. By setting the preheating component, the pipeline used to transmit the excitation liquid can be wrapped, so that the excitation liquid can meet the use requirements, thereby improving the accuracy of the photometric measurement results, and solving the technical problem that the existing excitation liquid addition mechanism has large heat loss during the transmission of the added liquid, which affects the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is a schematic structural diagram of a light measuring device in one embodiment;

[0024] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the photometric device shown.

[0025] Among them: 1. bracket; 11. support plate; 12. support leg; 2. container; 3. photometer assembly; 4. preheating assembly; 5. first light shielding member; 6. measuring optical disc; 7. first driving member; 8. heating film; 9. waste liquid assembly; 91. liquid aspiration seat; 92. liquid aspiration needle; 93. second driving member; 10. insulation element. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figure 1-2 As shown, in an embodiment of a photometric device, the photometric device includes a bracket 1, a container 2, a photometer assembly 3 and a preheating assembly 4; the container 2 is installed on the bracket 1, and a receiving space is provided in the container 2 to accommodate a reaction cup, and a first hole and a second hole connected to the receiving space are opened on the container 2, and the first hole is used to communicate with the excitation liquid storage mechanism through a pipeline so that the excitation liquid can be injected into the reaction cup; the photometer assembly 3 is installed on the bracket 1, and the photometer assembly 3 is used to detect the luminous intensity of the substance in the reaction cup in the receiving space through the second hole; the preheating assembly 4 is installed on the bracket 1, and the preheating assembly 4 is wrapped in the pipeline and used to heat the pipeline.

[0030] In this embodiment, by providing a preheating component 4, the pipeline used to transmit the excitation liquid can be wrapped, so that the excitation liquid can meet the use requirements, thereby improving the accuracy of the photometric measurement results, and solving the technical problem that the existing excitation liquid adding mechanism has a large heat loss during the transmission of the added liquid, which affects the measurement.

[0031] It is understandable that the main function of the photometer component 3 is to detect the luminescence intensity of a specific substance in the reaction cup through a photomultiplier tube, and then determine the content of the analyte based on the principle that the concentration of the analyte in the chemical detection system and the chemiluminescence intensity of the system are in a linear quantitative relationship under certain conditions.

[0032] In an embodiment of the light measuring device, the light measuring device further includes a first light shielding member 5 , which covers an area of the container 2 corresponding to the first hole and at least covers a portion of the pipeline.

[0033] In this embodiment, the first light-shielding member 5 may be light-shielding cotton. By using the first light-shielding member 5 to cover the position of the first hole, the darkroom space requirement in the container 2 can be ensured, avoiding affecting the accuracy of light measurement detection.

[0034] It can be understood that the first shading member 5 can be a block-shaped or plate-shaped structure, which covers the upper portion, including the portion of the pipeline passing through the first hole, which is also covered by the first shading member 5.

[0035] In one embodiment of the photometric device, the photometric device further includes a photometric disc 6 and a first driving member 7. The photometric disc 6 is accommodated in a receiving space. The photometric disc 6 is provided with a plurality of placement positions for reaction cups along its circumference. The first driving member 7 is mounted on the bracket 1. The output end of the first driving member 7 passes through the outer wall of the container 2 and is connected to the photometric disc 6. The first driving member 7 is used to drive the photometric disc 6 to rotate so that each reaction cup can be aligned with the first hole and the photometer assembly 3.

[0036] In this embodiment, the measuring disc 6 can rotate under the drive of the first driving member 7. In this way, multiple reaction cups on the measuring disc 6 can be tested relative to the photometer assembly 3 in turn, thereby improving the efficiency of the overall device in terms of photometry, and multiple reaction cups can be measured within a period of time.

[0037] Preferably, the first driving member 7 is a stepping motor, so that each reaction cup can be easily placed opposite to the photometer assembly 3 .

[0038] Furthermore, there are four cuvette accommodating holes in the measuring optical disc 6, and a square groove is opened on the bottom side wall of each cuvette accommodating hole so that the photons generated by the reaction in the cuvette can smoothly enter the photomultiplier tube in the photometer component 3.

[0039] In an embodiment of a photometric device, the bracket 1 includes a support plate 11 and multiple legs 12. The support plate 11 is used to support the container 2, the photometer assembly 3 and the preheating assembly 4. Each leg 12 is connected to the side of the support plate 11 facing away from the container 2. The first driving member 7 is arranged on the side of the support plate 11 facing away from the container 2.

[0040] In this embodiment, the support plate 11 can be raised by providing a plurality of legs 12, which can facilitate the docking of the overall photometric device with other devices in the analyzer. While raising the support plate 11, space can also be left below, which is convenient for arranging the first driving member 7, thereby optimizing space and reducing volume.

[0041] Furthermore, the bracket 1 may further include a bottom plate, and each leg 12 is connected to the bottom plate via an end thereof away from the supporting plate 11 .

[0042] Preferably, a protrusion is provided on the supporting plate 11, and the photometer component 3 and the preheating component 4 are both provided on the protrusion.

[0043] In an embodiment of the light measuring device, the light measuring device further includes a heating component, which is accommodated in the accommodation space and is used to generate heat to heat the substance in the reaction cup in the accommodation space.

[0044] In this embodiment, by providing a heating component, the receiving space can be heated, thereby achieving a warming effect. Combined with the previous embodiment, it can be understood that after the preheating component 4 is provided in the present invention, the time for heating the excitation liquid can be reduced, thereby improving the warming efficiency and further improving the overall photometric efficiency.

[0045] In an embodiment of a light measuring device, the heating component includes a heating film 8, a temperature sensor and a thermal insulation switch. The heating film 8 is attached to the light measuring disk 6 and is used to heat the light measuring disk 6. The temperature sensor is electrically connected to the heating film 8 and is used to detect the temperature of the heating film 8. The thermal insulation switch is electrically connected to the temperature sensor and the heating film 8. The thermal insulation switch is used to disconnect the power supply of the heating film 8 when the temperature of the heating film 8 exceeds the limit value.

[0046] In this embodiment, specifically, the heating film 8 can be a silicone heating film 8, and the direct attachment method is solid direct heating, which can reduce heat loss, thereby improving heating efficiency and effect. In conjunction with the temperature sensor and the thermal insulation switch, it can limit the effect of the heating film 8, thereby achieving the effect of constant temperature heating control of the measuring optical disk 6.

[0047] In combination with the previous embodiments, it can be understood that the excitation liquid needs to participate in the chemical immune reaction at an appropriate temperature to ensure the accuracy and reliability of the photometric effect. When the preheating component 4 is not provided and only the heating component is provided, heating can also be performed to promote the chemical immune reaction of the excitation liquid. After the preheating component 4 is provided, the excitation liquid in the pipeline can be preheated at a constant temperature, so that the excitation liquid entering the receiving space can directly reach the temperature requirement. The heating of the receiving space by the heating component can improve efficiency.

[0048] In an embodiment of the light measuring device, the light measuring device further includes a waste liquid component 9 , which is installed on the container 2 away from the bracket 1 and is connected to the receiving space. The waste liquid component 9 is used to discharge waste liquid in the container 2 .

[0049] In this embodiment, by providing the waste liquid component 9, the waste liquid in the reaction cup after photometry can be discharged, which can play the role of periodically circulating the absorption of the liquid in the reaction cup.

[0050] In an embodiment of a photometric device, the waste liquid component 9 includes a second driving member 93, a liquid pipetting needle 92 and a liquid pipetting seat 91. The liquid pipetting seat 91 is installed on the container 2, the second driving member 93 is installed on the liquid pipetting seat 91, and the output end of the second driving member 93 is connected to the liquid pipetting needle 92 and is used to drive the liquid pipetting needle 92 close to or away from the reaction cup. The liquid pipetting needle 92 is used to discharge the waste liquid in the reaction cup.

[0051] In this embodiment, specifically, the second driving member 93 can be a driving module such as a pneumatic cylinder, an oil cylinder, a linear motor, etc. In order to improve the accuracy, guide rails, screw rods and other components can also be added. Through the action of the second driving member 93, it can cooperate with the first driving member 7 in front to suck out the waste liquid in each reaction cup.

[0052] In an embodiment of the light measuring device, the light measuring device further includes a heat preservation element 10 , which is wrapped around the side wall of the container 2 to keep the container 2 warm.

[0053] In this embodiment, specifically, the heat-insulating element 10 can be heat-insulating cotton, which is wrapped around the container 2 , thereby achieving a heat-insulating effect and avoiding heat loss in the container 2 .

[0054] In combination with the previous embodiments, the present invention integrates the photometer component 3, the preheating component 4 and the waste liquid component 9 on the container 2 or the support plate 11, with a high degree of integration.

[0055] The utility model also relates to an analyzer, comprising the light measuring device in the above embodiment.

[0056] By adopting the light measuring device in the above embodiment, it is possible to avoid the influence of the measurement effect caused by the low temperature of the excitation liquid, and it is also possible to improve the detection efficiency.

[0057] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A light measuring device, characterized in that: The light measuring device includes Bracket; a container mounted on the bracket, wherein a receiving space is provided in the container for receiving a reaction cup, and a first hole and a second hole are formed in the container and communicate with the receiving space, wherein the first hole is used to communicate with the excitation liquid storage mechanism through a pipeline so that the excitation liquid can be injected into the reaction cup; a photometer assembly mounted on the bracket, the photometer assembly being used to detect the luminous intensity of the substance in the reaction cup in the receiving space through the second hole; and a preheating component installed on the bracket, wherein the preheating component is wrapped around the pipeline and is used to heat the pipeline.

2. The light measuring device according to claim 1, wherein The light measuring device further includes a first light shielding member, which covers an area of the container corresponding to the first hole and at least covers a portion of the pipeline.

3. The light measuring device according to claim 1, wherein The photometric device further includes a photometric disc and a first driving member. The photometric disc is accommodated in the accommodation space. The photometric disc is provided with a plurality of placement positions for the reaction cups along its circumference. The first driving member is mounted on the bracket. The output end of the first driving member passes through the outer wall of the container and is connected to the photometric disc, and is used to drive the photometric disc to rotate so that each reaction cup is aligned with the first hole and the photometer assembly.

4. The light measuring device according to claim 3, wherein The bracket includes a support plate and multiple legs, the support plate is used to support the container, the photometer assembly and the preheating assembly, each of the legs is connected to the side of the support plate facing away from the container, and the first driving member is arranged on the side of the support plate facing away from the container.

5. The light measuring device according to claim 3, wherein: The light measuring device further includes a heating component, which is accommodated in the accommodation space and is used to generate heat to heat the substance in the reaction cup in the accommodation space.

6. The light measuring device according to claim 5, wherein The heating assembly includes a heating film, a temperature sensor and a thermal insulation switch. The heating film is attached to the measuring disc and is used to heat the measuring disc. The temperature sensor is electrically connected to the heating film and is used to detect the temperature of the heating film. The thermal insulation switch is electrically connected to the temperature sensor and the heating film. The thermal insulation switch is used to disconnect the power supply to the heating film when the temperature of the heating film exceeds a limit value.

7. The light measuring device according to claim 1, wherein The photometric device further comprises a waste liquid component, which is mounted on the container away from the bracket and communicated with the receiving space, and is used for discharging waste liquid in the container.

8. The light measuring device according to claim 7, wherein: The waste liquid component includes a second driving member, a liquid pipetting needle and a liquid pipetting seat. The liquid pipetting seat is installed on the container, the second driving member is installed on the liquid pipetting seat, the output end of the second driving member is connected to the liquid pipetting needle, and is used to drive the liquid pipetting needle close to or away from the reaction cup. The liquid pipetting needle is used to discharge the waste liquid in the reaction cup.

9. The light measuring device according to claim 1, wherein The light measuring device further comprises a heat-insulating element, which is wrapped around the side wall of the container to keep the container warm.

10. An analyzer, characterized in that: The light measuring device comprises the light measuring device according to any one of claims 1 to 9.

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