Light source assembly for a blood gas analyzer, light emitting device and blood gas analyzer

Abstract

This application discloses a light source assembly, a light-emitting device, and a blood gas analyzer, relating to the field of biomedical detection technology. The light source assembly emits probe light onto the sample container of the blood gas analyzer. The light source assembly includes a housing assembly, a light source circuit board, and a heating unit. The housing assembly is adapted to contact the sample container when the light source assembly is operating. The light source circuit board is disposed within the housing assembly, and has light-emitting units disposed on it for emitting light toward the sample container. The heating unit is disposed within the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit generates heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly. This application improves the structure of the light source assembly, ensuring the consistency of the temperature during blood oxygenation testing with the expected temperature, improving testing accuracy, and saving space in the main unit of the blood gas analyzer.

Description

Technical Field

[0001] This application relates to the field of biomedical detection technology, and in particular to a light source component, a light-emitting device, and a blood gas analyzer for use in a blood gas analyzer. Background Technology

[0002] A blood gas analyzer is a medical device that uses electrodes to react electrochemically with a blood sample, converting the chemical components in the blood into electrical signals to quickly measure the blood's pH, oxygen partial pressure, carbon dioxide partial pressure, and electrolyte concentration. Its core function is to assess respiratory function and acid-base balance. Blood gases refer to the O2 and CO2 gases in the blood. Originally, a blood gas analyzer was an instrument for measuring O2 and CO2 in blood, but it can also simultaneously measure the blood's pH value. In its development, blood gas analyzers have gradually integrated the function of detecting blood oxygen, electrolytes, and metabolites.

[0003] Blood gas analyzers in some related technologies include luminescent devices, ultrasonic devices, and spectrometers. The ultrasonic device applies ultrasonic waves to the sample container to break up the blood cells within. The luminescent device emits probe light onto the sample container; this light passes through the container and is emitted to the ultrasonic device, where it is received by the integrated optical fiber and then transmitted to the spectrometer for spectral analysis.

[0004] When performing optical measurements on blood samples in a sample container, temperature is a crucial factor affecting the measurement results. Therefore, a heating structure is needed to heat the blood sample and maintain its temperature. In some related technologies, the heating element of the blood gas analyzer is located in the preheating position to preheat the blood sample. This requires a certain amount of space in the main unit to house the heating element. Furthermore, because the preheating position and the detection position are different, the actual blood sample temperature during detection will deviate from the expected temperature. Utility Model Content

[0005] The main objective of this application is to provide a light source assembly, a light-emitting device, and a blood gas analyzer for use in a blood gas analyzer, which aims to ensure the consistency of the temperature during blood oxygenation testing with the expected temperature, thereby improving testing accuracy and saving space in the main unit of the blood gas analyzer.

[0006] To achieve the above objectives, this application proposes a light source assembly for a blood gas analyzer, the light source assembly being used to emit probe light onto the sample container of the blood gas analyzer; the light source assembly includes: A housing assembly adapted to contact the sample container when the light source assembly is in operation; A light source circuit board is disposed within the housing assembly, and the light source circuit board is provided with a light-emitting unit for emitting light toward the sample container; and A heating unit is disposed within the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit is used to generate heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly.

[0007] In some embodiments, the light source assembly further includes an optical path assembly, and the housing assembly includes a circuit board base, a spacer, and a top cover. The top cover is disposed on the circuit board base, and the top cover and the circuit board base enclose an installation space for mounting the light source circuit board and the optical path assembly. The spacer is disposed within the installation space and separates the light source circuit board and the optical path assembly.

[0008] In some embodiments, the top cover is in direct or indirect contact with the circuit board base. The light source circuit board includes a heat-spreading substrate, an insulating layer, and a light-emitting circuit. The light-emitting circuit is used to power the light-emitting unit. The heating unit is a heating circuit integrated on the light source circuit board. The insulating layer is disposed on the heat-spreading substrate. The heating unit and the light-emitting circuit are disposed on the side of the insulating layer opposite to the heat-spreading substrate. The heat-spreading substrate is used to conduct heat to the circuit board base.

[0009] In some embodiments, the heat-spreading substrate is a metal plate, and the thickness of the heat-spreading substrate is 0.5 mm to 2.5 mm.

[0010] In some embodiments, a thermally conductive layer is provided between the heat-spreading substrate and the circuit board base, the thermally conductive layer being used to accelerate the heat conduction speed between the heat-spreading substrate and the circuit board base.

[0011] In some embodiments, the spacer is provided with a light channel for allowing light emitted from the light source circuit board to pass to the optical path assembly, the top cover is adapted to rest against the sample container when the light source assembly is in operation, and the top cover is provided with a light outlet for allowing light emitted from the optical path assembly to pass to the sample container.

[0012] In some embodiments, the top cover includes a cover body and a lampshade protruding from the cover body. The side of the cover body is attached to the side of the circuit board base. The lampshade covers the optical path assembly. The light-emitting hole is located on the lampshade. The outer end face of the lampshade is a heat-conducting surface suitable for contacting the sample container.

[0013] In some embodiments, the blood gas analyzer includes a blood gas measurement module and a blood oxygen measurement module, the blood gas measurement module being configured to perform blood gas detection on an input sample to obtain a blood gas signal, and the blood oxygen measurement module including the light source assembly; The light source assembly also includes an optical path assembly. The housing assembly includes a circuit board base, a spacer, and a top cover. The top cover is disposed on the circuit board base. The top cover and the circuit board base enclose an installation space for mounting the light source circuit board and the optical path assembly. The spacer is disposed within the installation space and separates the light source circuit board and the optical path assembly. The top cover is in direct or indirect contact with the circuit board base. The light source circuit board includes a heat-spreading substrate, an insulating layer, and a light-emitting circuit. The light-emitting circuit is used to power the light-emitting unit. The heating unit is a heating circuit integrated on the light source circuit board. The insulating layer is disposed on the heat-spreading substrate. The heating unit and the light-emitting circuit are disposed on the side of the insulating layer facing away from the heat-spreading substrate. The heat-spreading substrate is used to conduct heat to the circuit board base. The heat-spreading substrate is a metal plate, and the thickness of the heat-spreading substrate is 0.5mm~2.5mm; a thermally conductive layer is provided between the heat-spreading substrate and the circuit board base, and the thermally conductive layer is used to accelerate the heat conduction speed between the heat-spreading substrate and the circuit board base. The spacer is provided with a light channel for allowing light emitted from the light source circuit board to pass to the optical path assembly. The top cover is adapted to be attached to the sample container when the light source assembly is working. The top cover is provided with a light outlet for allowing light emitted from the optical path assembly to pass to the sample container. The top cover includes a cover body and a lampshade protruding from the cover body. The side of the cover body is attached to the side of the circuit board base. The lampshade is placed on the optical path assembly. The light emission hole is located on the lampshade. The outer end face of the lampshade is a heat-conducting surface suitable for contacting the sample container.

[0014] To achieve the above objectives, this application proposes a light-emitting device, comprising: The housing of the light source is designed to be driven by external force. The light source assembly described above is disposed within the light source housing; the light source assembly includes: A housing assembly adapted to contact the sample container when the light source assembly is in operation; A light source circuit board is disposed within the housing assembly, and the light source circuit board is provided with a light-emitting unit for emitting light toward the sample container; and A heating unit is disposed within the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit is used to generate heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly. The light source assembly includes: A housing assembly adapted to contact the sample container when the light source assembly is in operation; A light source circuit board is disposed within the housing assembly, and the light source circuit board is provided with a light-emitting unit for emitting light toward the sample container; and A heating unit is disposed within the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit is used to generate heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly.

[0015] To achieve the above objectives, this application also proposes a blood gas analyzer, comprising: A blood gas measurement module, configured to perform blood gas analysis on an input sample to obtain blood gas parameter signals; A reagent kit assembly, the reagent kit assembly including a reagent kit and a sample container, the sample container being connected to the reagent kit; The light-emitting device described above is used to emit probe light towards the sample container; and An ultrasound device, wherein an optical fiber is provided in the ultrasound device, the optical fiber being used to receive the probe light passing through the sample container.

[0016] In the technical solution of this application, the light source assembly includes a housing assembly, a light source circuit board, and a heating unit. The housing assembly is adapted to contact the sample container when the light source assembly is working. The light source circuit board is disposed inside the housing assembly, and a light-emitting unit for emitting light towards the sample container is provided on the light source circuit board. The heating unit is disposed inside the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit is used to generate heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly. It can be understood that this application improves the structure of the light source assembly. By setting the heating unit to generate heat and conducting it to the sample container through the housing assembly, the consistency between the temperature during blood oxygen testing and the expected temperature is ensured, improving the testing accuracy. At the same time, it eliminates the need to reserve space in the main unit of the blood gas analyzer to install the heating assembly, saving space in the main unit of the blood gas analyzer. In addition, it can also realize the simultaneous heating of the blood sample in the sample container during blood sample testing, making the temperature of the blood sample more accurate and stable during testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the blood gas analyzer drive actuator, ultrasonic device, and light-emitting device of this application; Figure 2 This is a schematic diagram of the structure of one embodiment of the light source assembly of this application; Figure 3 This is an exploded view of an embodiment of the light source assembly of this application; Figure 4 This is a schematic diagram of the structure of the light source circuit board in one embodiment of the light source assembly of this application; Figure 5 This is a schematic diagram of the overall structure of the blood gas analyzer in one embodiment of the present application; Figure 6 This is a schematic diagram of the connection structure of the main unit support, reagent kit assembly, and drive actuator in one embodiment of the blood gas analyzer of this application; Figure 7 This is a schematic diagram showing the positional relationship between the ultrasonic device and the light-emitting device of the blood oxygen measurement module and the sample container in a test state in one embodiment of the blood gas analyzer of this application. Figure 8 This is a schematic diagram showing the positional relationship between the ultrasonic device and the light-emitting device of the blood oxygen measurement module and the sample container in an embodiment of the blood gas analyzer of this application when they are in a separated state.

[0019] Explanation of icon numbers: 11. Main unit bracket; 12. Base; 13. Main unit front shell; 131. Display screen; 132. Test card slot; 133. Sampling needle port; 134. Barcode scanning port; 14. Main unit rear shell; 2. Drive actuator; 3. Ultrasonic device; 4. Light emission device; 41. Light source mounting bracket; 42. Light source housing; 43. Light source assembly; 431. Circuit board base; 432. Light source circuit board; 433. Optical path assembly; 434. Spacer; 435. Top cover; 45. Heating unit; 4351. Cover body; 4352. Lampshade; 4321. Light emission unit; 435a. Light emission hole; 5. Reagent kit assembly; 51. Reagent kit; 52. Sample container; 53. Test card mounting cavity; 6. Spectrometer.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. If the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. The technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0025] A blood gas analyzer is a medical device that uses electrodes to react electrochemically with a blood sample, converting the chemical components in the blood into electrical signals to quickly measure the blood's pH, oxygen partial pressure, carbon dioxide partial pressure, and electrolyte concentration. Its core function is to assess respiratory function and acid-base balance. Blood gases refer to the O2 and CO2 gases in the blood. Originally, a blood gas analyzer was an instrument for measuring O2 and CO2 in blood, but it can also simultaneously measure the blood's pH value. In its development, blood gas analyzers have gradually integrated the function of detecting blood oxygen, electrolytes, and metabolites.

[0026] Blood gas analyzers in some related technologies include luminescent devices, ultrasonic devices, and spectrometers. The ultrasonic device applies ultrasonic waves to the sample container to break up the blood cells within. The luminescent device emits probe light onto the sample container; this light passes through the container and is emitted to the ultrasonic device, where it is received by the integrated optical fiber and then transmitted to the spectrometer for spectral analysis.

[0027] When performing optical measurements on blood samples in a sample container, temperature is a crucial factor affecting the measurement results. Therefore, a heating structure is needed to heat the blood sample and maintain its temperature. In some related technologies, the heating element of the blood gas analyzer is located in the preheating position to preheat the blood sample. This requires a certain amount of space in the main unit to house the heating element. Furthermore, because the preheating position and the detection position are different, the actual blood sample temperature during detection will deviate from the expected temperature.

[0028] In this regard, this application proposes a light source component, which is mainly used in blood gas analyzers, but is not limited to this application.

[0029] Reference Figures 1 to 4 In some embodiments of this application, the blood gas analyzer includes a blood gas measurement module and a blood oxygen measurement module. The blood gas measurement module is configured to perform blood gas detection on the input sample to obtain a blood gas signal. The blood oxygen measurement module includes a light source assembly 43, which emits probe light to the sample container of the blood gas analyzer. The light source assembly 43 includes a housing assembly, a light source circuit board 432, and a heating unit 45. The housing assembly is adapted to contact the sample container when the light source assembly 43 is working, and its function is to conduct heat to the sample container. The light source circuit board 432 is disposed inside the housing assembly, and a light-emitting unit 4321 for emitting light toward the sample container is provided on the light source circuit board 432. The heating unit 45 is disposed inside the housing assembly, and the heating unit 45 is integrated with the light source circuit board 432 or electrically connected to the light source circuit board 432 through wires. The heating unit 45 is used to generate heat, and the heat generated by the heating unit 45 can be conducted to the sample container through the housing assembly.

[0030] It should be noted that the sample container can be the sample container of the blood gas analyzer (e.g., a cuvette) or other objects that need to contact the light source assembly 43 and receive its emitted light; there are no limitations on this. In some embodiments, the sample container is integrated into the blood gas analyzer's reagent kit, and the sample container and reagent kit as a whole can be detached from the blood gas analyzer. That is, the sample container and reagent kit as a whole can be used as consumables.

[0031] Blood oxygenation measurement refers to measuring indicators such as blood oxygen saturation in a blood sample. The blood oxygenation measurement in this application is performed using spectrophotometry; the detection principle can be roughly summarized as follows: first, blood cells in the blood sample are broken up by ultrasound to release hemoglobin, and then detection light is emitted to the blood sample. Hemoglobin absorbs light of different wavelengths differently, and the proportion of various hemoglobins can be calculated accordingly.

[0032] In this embodiment, the housing assembly of the light source assembly 43 may be composed of two or more housing components, one of which is used to support the light source circuit board 432, and the other is used to allow light to pass through and to contact the sample container during operation. No specific limitation is made here.

[0033] In this embodiment, to minimize the overall size of the light source assembly 43 and facilitate assembly, the heating unit 45 is preferably a heating circuit integrated on the light source circuit board 432. Of course, the heating unit 45 can also be a heating device independently disposed on the light source circuit board 432 or disposed outside the light source circuit board 432. The heating device is connected to the light source circuit board 432 via wires. The heating device can be an electric heating wire, mesh, rod, plate, or disc, or a combination of the above devices; there are no limitations here.

[0034] It is understood that the embodiments of this application improve the structure of the light source assembly 43. By setting up the heating unit 45 to generate heat and conduct it to the sample container through the housing assembly, the consistency between the temperature during blood oxygenation testing and the expected temperature is ensured, improving the testing accuracy. At the same time, it eliminates the need to reserve space in the main unit of the blood gas analyzer to install the heating assembly, saving space in the main unit of the blood gas analyzer. In addition, it can also realize the simultaneous heating of the blood sample in the sample container during blood sample testing, making the temperature of the blood sample more accurate and stable during testing.

[0035] To improve the ease of installation of the light source circuit board 432 and light guide components, further reduce the size of the light source assembly 43, and enable the heat generated by the heating unit 45 to be quickly and effectively conducted to the sample container, in some embodiments, refer to Figures 2 to 3 The light source assembly 43 may further include an optical path assembly 433. The housing assembly includes a circuit board base 431, a spacer 434, and a top cover 435. The top cover 435 covers the circuit board base 431, and the top cover 435 and the circuit board base 431 enclose an installation space for mounting the light source circuit board 432 and the optical path assembly 433. The spacer 434 is disposed within the installation space and separates the light source circuit board 432 and the optical path assembly 433. The spacer 434 also serves to prevent heat conduction to the optical path assembly 433, thus avoiding thermal deformation of the optical path assembly 433 during operation and affecting the accuracy of light detection.

[0036] In this embodiment, the circuit board base 431 and the top cover 435 constitute the outer shell of the light source assembly 43. Openings can be provided on both sides of the outer shell corresponding to one or both sides of the light source circuit board 432. The openings can play a certain role in heat dissipation, which helps to reduce the temperature of the light source circuit board 432 during operation and ensure that the light source circuit board 432 can continue to work normally. At the same time, this open design also reduces the amount of material used, making the overall weight of the light source assembly 43 lighter and the cost lower.

[0037] In this embodiment, the light source circuit board 432 is mounted abutting against one side surface of the circuit board base 431. The other side surface of the circuit board base 431 can be fixed to the light source housing base of the light-emitting device 4. A limiting post can be provided on this side of the circuit board base 431, and the limiting post is fitted with an elastic element such as a spring. The two ends of the elastic element abut against the circuit board base 431 and the light source housing base, respectively. This ensures that the elastic force of the elastic element is always directed towards the light source assembly 43. At the same time, the limiting post can also be used to further maintain the orientation of the light source assembly 43, ensuring that the light emitted by the light source assembly 43 also has a fixed orientation, which helps to further improve the accuracy of blood oxygen detection.

[0038] The elastic element can be compressed and deformed to provide cushioning when the light-emitting end of the light source assembly 43 contacts the sample container and is blocked by the sample container. When compressed, the cushioning element can press the light-emitting end of the light source assembly 43 onto the sample container, so that the light source assembly 43 and the sample container come into contact. The cushioning element can also drive the light source assembly 43 to return to its initial position after the light-emitting end of the light source assembly 43 separates from the sample container, thus preventing the light-emitting device 4 from damaging the sample container during movement, thereby effectively improving the accuracy of spectral detection.

[0039] In this embodiment, to further improve the efficiency and effect of heat conduction, the circuit board base 431 can be made of a material with excellent thermal conductivity, such as metal, and the top cover 435 can be made of a material with excellent thermal conductivity, such as metal, and there are no limitations here.

[0040] To improve the uniformity of heat transfer in the light source assembly 43 and make the sample container more evenly heated, in some embodiments, reference is made to... Figure 2 and Figure 3 The top cover 435 is in direct or indirect contact with the circuit board base 431. The light source circuit board 432 includes a heat-spreading substrate, an insulating layer, and a light-emitting circuit. The light-emitting circuit is used to power the light-emitting unit. The heating unit 45 is a heating circuit integrated on the light source circuit board 432. The insulating layer is disposed on the heat-spreading substrate. The heating unit 45 and the light-emitting circuit are disposed on the side of the insulating layer facing away from the heat-spreading substrate. The heat-spreading substrate is used to conduct heat to the circuit board base 431.

[0041] In this embodiment, the heat spreader substrate can be made of metal or other materials with excellent thermal conductivity. For example, the heat spreader substrate is a copper plate. Furthermore, the thickness of the heat spreader substrate is 0.5 mm to 2.5 mm to have a high heat capacity and ensure uniform heat diffusion.

[0042] In some implementations, refer to Figure 2 and Figure 3A thermally conductive layer may also be provided between the heat-spreading substrate and the circuit board base 431. The thermally conductive layer is used to accelerate the heat conduction speed between the heat-spreading substrate and the circuit board base 431. The thermally conductive layer can be a fluid thermally conductive material such as thermal grease, and is not limited here.

[0043] In some implementations, refer to Figure 2 and Figure 3 The spacer 434 may be provided with a light channel for allowing light emitted from the light source circuit board 432 to pass through to the optical path assembly 433. The top cover 435 is adapted to rest against the sample container when the light source assembly 43 is working, and the top cover 435 is provided with a light exit hole 435a for allowing light emitted from the optical path assembly 433 to pass through to the sample container. In this way, heat can be transferred to the sample container while ensuring that the detection light emitted by the light-emitting unit 4321 can reach the sample container, which helps to improve the accuracy of blood oxygen detection. In addition, this arrangement also helps to improve the structural compactness of the light source assembly 43.

[0044] In this embodiment, the top cover 435 includes a cover body 4351 and a lampshade 4352 protruding from the cover body 4351. The side of the cover body 4351 is attached to the side of the circuit board base 431, and the lampshade 4352 covers the side of the optical path assembly 433 facing away from the circuit board base 431. A light-emitting hole 435a is provided on the lampshade 4352, and the outer end face of the lampshade 4352 is a heat-conducting surface suitable for contact with the sample container. This arrangement allows for better adaptation design according to the sample container, thereby further improving the uniformity and efficiency of heat transfer. In addition, the outer end face of the lampshade 4352 in this embodiment also serves as the end face of the light-emitting end of the light source assembly 43.

[0045] In this embodiment, the heat-conducting surface should be adapted to the surface shape of the contact area with the sample container, which can be a flat surface, a curved surface, or an irregular surface, etc., and is not limited here.

[0046] This application also proposes a light-emitting device 4, as shown in the reference. Figure 1 The light-emitting device 4 includes a light source component 43. The specific structure of the light source component 43 is as described in the above embodiments. Since the light-emitting device 4 proposed in this application includes all the solutions of all the embodiments of the light source component 43, it has at least the same technical effects as the light source component 43. These will not be described in detail here.

[0047] Reference Figure 1 In some embodiments of this application, the light-emitting device 4 further includes a light source housing 42, which is adapted to be moved by an external force, and the light source assembly 43 is disposed inside the light source housing 42.

[0048] In this embodiment, the light source housing 42 can be mounted on the drive actuator 2 of the drive source through the light source mounting bracket 41. The light source assembly 43 is driven to move by the drive source such as a motor, thereby realizing the automatic contact and separation of the light source assembly 43 and the sample container. This setting can greatly improve the efficiency of blood oxygen detection.

[0049] This application also proposes a blood gas analyzer, referring to... Figure 1 The blood gas analyzer includes a light-emitting device 4. The specific structure of the light-emitting device 4 is as described in the above embodiments. Since the blood gas analyzer proposed in this application includes all the solutions of all the embodiments of the light-emitting device 4, it has at least the same technical effects as the light-emitting device 4, which will not be described in detail here.

[0050] In some embodiments of this application, the blood gas analyzer includes a blood gas measurement module, a reagent kit assembly, a light-emitting device 4, and an ultrasound device; the blood gas measurement module is configured to perform blood gas analysis on an input sample to obtain blood gas parameter signals; the reagent kit assembly includes a reagent kit and a sample container, the sample container being connected to the reagent kit; the light-emitting device 4 is used to emit probe light into the sample container; the ultrasound device is provided with an optical fiber, the optical fiber being used to receive the probe light passing through the sample container.

[0051] Figure 5 This is a schematic diagram of the overall structure of the blood gas analyzer in the embodiments of this application. Figure 6 This is a schematic diagram of the connection structure of the host bracket, reagent kit assembly and drive actuator 2 in an embodiment of this application. Figure 7 This diagram illustrates the positional relationship between the ultrasound device 3 and the light-emitting device 4 of the blood oxygen measurement module and the sample container 52 when they are in the testing state. Figure 8 This is a schematic diagram showing the positional relationship between the ultrasound device 3 and the light-emitting device 4 of the blood oxygen measurement module and the sample container 52 when they are in a separated state.

[0052] like Figure 5 and Figure 6 The blood gas analyzer shown, in some embodiments of this application, includes a main unit housing and a main unit bracket 11 disposed within the main unit housing, a blood gas measurement module (not shown), and a blood oxygen measurement module. The blood gas measurement module is configured to detect the input sample to obtain a blood gas signal, and the blood oxygen measurement module is configured to detect the input sample to obtain a blood oxygen signal.

[0053] In some embodiments, the analyzer host (not shown) is housed within the main unit casing. The term "analyrical host" in this document can be understood as any major structure in the blood gas analyzer other than the removable consumables and the blood oxygen measurement module. For example, the analyzer host may include a signal processing module, a human-computer interaction module, and a circuit module. The signal processing module converts the acquired electrical signals into clinically interpretable physiological parameters; the human-computer interaction module enables user operation, result viewing, and instrument settings; and the circuit module provides stable power supply and signal transmission for the entire host. The various modules of the analyzer host can be directly or indirectly fixed to the host bracket 11.

[0054] like Figure 5 and Figure 6 As shown, in some embodiments of this application, the main unit housing includes a base 12 and a front housing 13 and a rear housing 14 connected to the base 12. A main unit bracket 11 is mounted on the base 12. The front housing 13 and the rear housing 14 are connected to form the outer housing of the blood gas analyzer. The main unit bracket 11, the blood gas measurement module, and the blood oxygen measurement module are all located within the space enclosed by the front housing 13 and the rear housing 14. The front housing 13 is equipped with a display screen 131, a test card slot 132, a sampling needle port 133, a barcode scanning port 134, etc. The test card slot 132 is used for inserting a test card assembly, and the sampling needle port 133 is used for inserting a syringe or capillary tube. The test fluid inside the syringe or capillary tube can enter the tubing inside the main unit housing through the sampling needle port 133. The blood gas analyzer also contains various components required to realize the blood gas measurement function and the blood oxygen (blood oxygen saturation) measurement function, such as a power supply, a printer, and a main control board.

[0055] like Figure 6 As shown, in some embodiments of this application, the host bracket 11 has a reagent chamber for storing the reagent kit component 5. The reagent kit component 5 is inserted into the reagent kit chamber as a consumable and can be inserted into or removed from the reagent kit chamber from the reagent kit assembly port on one side of the reagent kit chamber.

[0056] like Figures 6 to 8As shown, in some embodiments of this application, the reagent kit component 5 includes a sample container 52 and a reagent kit 51. The sample container 52 is integrated onto the reagent kit 51 and protrudes from the outer surface of the reagent kit 51. The blood oxygen testing channel inside the sample container 52 is connected to the communicating tubing inside the reagent kit 51. When the reagent kit component 5 is installed into the main unit bracket 11, the sample container 52 is installed together with the reagent kit 51 into the reagent kit chamber inside the main unit bracket 11. This arrangement not only facilitates the integrated replacement of the sample container 52 and the reagent kit 51, but also eliminates the need for additional space outside the main unit bracket 11 for inserting the sample container 52, which is beneficial for the miniaturization design of the main unit bracket 11 and the entire device.

[0057] like Figures 6 to 8 As shown, in some embodiments of this application, the reagent kit 51 is further provided with a test card mounting cavity 53 on its exterior. When the reagent kit 51 is inserted into the reagent kit chamber inside the main unit bracket 11, the test card mounting cavity 53 is exposed from the main unit bracket 11. When the external test card assembly is inserted into the blood gas analyzer, the test card assembly is inserted into the test card mounting cavity 53 and connected to the reagent kit 51, wherein the blood gas testing channel inside the test card assembly can be connected to the communicating tubing inside the reagent kit 51.

[0058] like Figures 6 to 8 As shown, in some embodiments of this application, the blood oxygen measurement module includes an ultrasonic device 3, a light-emitting device 4, and a spectrometer 6. The blood oxygen measurement module includes a mounting bracket installed outside the main unit bracket 11, and the ultrasonic device 3, the light-emitting device 4, and the spectrometer 6 are directly or indirectly mounted on the mounting bracket. The ultrasonic device 3 emits ultrasonic waves to the sample container 52 at the sample container test chamber location, acting on the sample inside the sample container 52. Further, the ultrasonic waves emitted by the ultrasonic device 3 are used to break up blood cells in the sample within the blood oxygen testing channel of the sample container 52, releasing hemoglobin from within the blood cells. The detection light emitted by the light-emitting device 4 can pass through the blood oxygen testing channel of the sample container 52 at the sample container test chamber location. The detection light emitted from the sample container 52 is then received by an optical fiber, which guides the detection light to the spectrometer 6 connected to the optical fiber. The spectrometer 6 analyzes the intensity of the received detection light and converts it into an electrical signal, which is then transmitted to the analyzer main unit. The analyzer main unit analyzes this electrical signal to calculate blood oxygen parameters such as blood oxygen saturation. The analyzer host is also used to output blood oxygen saturation and other blood oxygen parameters of the test solution. The blood gas analyzer shown in this application can simultaneously measure blood gas parameters and blood oxygen parameters of the test solution on a single host device, and can complete the measurement of more parameters of the test solution and output test results, thus having enhanced functionality.

[0059] like Figure 7 and Figure 8As shown, in some embodiments of this application, the sample container 52 has a first side and a second side arranged opposite to each other. The ultrasonic device 3 and the light-emitting device 4 of the blood oxygen measurement module have a testing state and a separation state during movement. When the ultrasonic device 3 and the light-emitting device 4 of the blood oxygen measurement module move to the testing state, the ultrasonic device 3 contacts the first side of the sample container 52, and the light-emitting device 4 contacts the second side of the sample container 52. The ultrasonic device 3 and the light-emitting device 4 can fix the sample container 52 to ensure that the position is basically the same for each test, reducing measurement errors. When the ultrasonic device 3 and the light-emitting device 4 of the blood oxygen measurement module move to the separation state, the ultrasonic device 3 is spaced from the first side of the sample container 52, and the light-emitting device 4 is spaced from the second side of the sample container 52. The sample container 52 will not rub against the ultrasonic device 3 and the light-emitting device 4 during the process of moving in and out, avoiding the risk of damage to the sample container 52. At the same time, the ultrasonic device 3 and the light-emitting device 4 will not hinder the movement of the reagent kit component 5 in and out.

[0060] exist Figure 8 In this system, a three-dimensional coordinate system is established with the width of the mounting bracket as the X-axis, the length of the mounting bracket as the Y-axis, and the height of the mounting bracket as the Z-axis. Figure 8 In the diagram, direction a represents the insertion direction of reagent kit component 5, which is in the same direction as the opposite of the X-axis. The removal direction of reagent kit component 5 is the same as the positive direction of the X-axis. Direction b represents the direction of motion of the ultrasound device 3 moving away from the sample container 52 in a straight line, and direction c represents the direction of motion of the light-emitting device 4 moving away from the sample container 52 in a straight line. Directions c and b are on the same straight line and opposite in direction, and both directions c and b are perpendicular to direction a. The assembly path of reagent kit component 5 includes the insertion path of reagent kit component 5 from the outside into the reagent kit chamber and the removal path of reagent kit component 5 from the reagent kit chamber to the outside. When the blood oxygen measurement module is in the separated state, the ultrasound device 3 and the light-emitting device 4 are located outside the assembly path of reagent kit component 5; when the blood oxygen measurement module is in the testing state, parts of the ultrasound device 3 and the light-emitting device 4 are located within the space defined by the assembly path of reagent kit component 5.

[0061] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A light source assembly for a blood gas analyzer, characterized in that, The light source assembly is used to emit probe light to the sample container of the blood gas analyzer; the light source assembly includes: A housing assembly adapted to contact the sample container when the light source assembly is in operation; A light source circuit board is disposed within the housing assembly, and the light source circuit board is provided with a light-emitting unit for emitting light toward the sample container; and A heating unit is disposed within the housing assembly and integrated with the light source circuit board or electrically connected via wires. The heating unit is used to generate heat, and the heat generated by the heating unit can be conducted to the sample container through the housing assembly.

2. The light source assembly as described in claim 1, characterized in that, The light source assembly further includes an optical path assembly. The housing assembly includes a circuit board base, a spacer, and a top cover. The top cover is disposed on the circuit board base. The top cover and the circuit board base enclose an installation space for mounting the light source circuit board and the optical path assembly. The spacer is disposed within the installation space and separates the light source circuit board and the optical path assembly.

3. The light source assembly as described in claim 2, characterized in that, The top cover is in direct or indirect contact with the circuit board base. The light source circuit board includes a heat-spreading substrate, an insulating layer, and a light-emitting circuit. The light-emitting circuit is used to power the light-emitting unit. The heating unit is a heating circuit integrated on the light source circuit board. The insulating layer is disposed on the heat-spreading substrate. The heating unit and the light-emitting circuit are disposed on the side of the insulating layer facing away from the heat-spreading substrate. The heat-spreading substrate is used to conduct heat to the circuit board base.

4. The light source assembly as described in claim 3, characterized in that, The heat-spreading substrate is a metal plate, and the thickness of the heat-spreading substrate is 0.5mm to 2.5mm.

5. The light source assembly as described in claim 3, characterized in that, A thermally conductive layer is provided between the heat-spreading substrate and the circuit board base, and the thermally conductive layer is used to accelerate the heat conduction speed between the heat-spreading substrate and the circuit board base.

6. The light source assembly as described in claim 3, characterized in that, The spacer is provided with a light channel for allowing light emitted from the light source circuit board to pass through to the optical path assembly. The top cover is adapted to be attached to the sample container when the light source assembly is working. The top cover is provided with a light outlet for allowing light emitted from the optical path assembly to pass through to the sample container.

7. The light source assembly as described in claim 6, characterized in that, The top cover includes a cover body and a lampshade protruding from the cover body. The side of the cover body is attached to the side of the circuit board base. The lampshade is placed on the optical path assembly. The light emission hole is located on the lampshade. The outer end face of the lampshade is a heat-conducting surface suitable for contacting the sample container.

8. The light source assembly as described in claim 1, characterized in that, The blood gas analyzer includes a blood gas measurement module and a blood oxygen measurement module. The blood gas measurement module is configured to perform blood gas detection on the input sample to obtain a blood gas signal. The blood oxygen measurement module includes the light source component. The light source assembly also includes an optical path assembly. The housing assembly includes a circuit board base, a spacer, and a top cover. The top cover is disposed on the circuit board base. The top cover and the circuit board base enclose an installation space for mounting the light source circuit board and the optical path assembly. The spacer is disposed within the installation space and separates the light source circuit board and the optical path assembly. The top cover is in direct or indirect contact with the circuit board base. The light source circuit board includes a heat-spreading substrate, an insulating layer, and a light-emitting circuit. The light-emitting circuit is used to power the light-emitting unit. The heating unit is a heating circuit integrated on the light source circuit board. The insulating layer is disposed on the heat-spreading substrate. The heating unit and the light-emitting circuit are disposed on the side of the insulating layer facing away from the heat-spreading substrate. The heat-spreading substrate is used to conduct heat to the circuit board base. The heat-spreading substrate is a metal plate, and the thickness of the heat-spreading substrate is 0.5mm~2.5mm; a thermally conductive layer is provided between the heat-spreading substrate and the circuit board base, and the thermally conductive layer is used to accelerate the heat conduction speed between the heat-spreading substrate and the circuit board base. The spacer is provided with a light channel for allowing light emitted from the light source circuit board to pass to the optical path assembly. The top cover is adapted to be attached to the sample container when the light source assembly is working. The top cover is provided with a light outlet for allowing light emitted from the optical path assembly to pass to the sample container. The top cover includes a cover body and a lampshade protruding from the cover body. The side of the cover body is attached to the side of the circuit board base. The lampshade is placed on the optical path assembly. The light emission hole is located on the lampshade. The outer end face of the lampshade is a heat-conducting surface suitable for contacting the sample container.

9. A light-emitting device for a blood gas analyzer, characterized in that, include: The housing of the light source is designed to be driven by external force. as well as The light source assembly as described in any one of claims 1 to 8 is disposed within the light source housing.

10. A blood gas analyzer, characterized in that, include: A blood gas measurement module, configured to perform blood gas analysis on an input sample to obtain blood gas parameter signals; A reagent kit assembly, the reagent kit assembly including a reagent kit and a sample container, the sample container being connected to the reagent kit; The light-emitting device of claim 9, wherein the light-emitting device is used to emit probe light toward the sample container; and An ultrasound device, wherein an optical fiber is provided in the ultrasound device, the optical fiber being used to receive the probe light passing through the sample container.

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