Reagent bag for blood gas detection and blood gas analyzer

Abstract

The invention discloses a reagent bag for blood gas detection and a blood gas analyzer. The reagent bag comprises a reagent bag, a reagent tube and a reagent tube, the shell is provided with an adapter used for being communicated with the reagent bag; the pipeline is used for communicating the reagent bag with the adapter; the sliding assembly comprises a sliding part arranged on the pipeline in a sleeving mode, a body fixedly connected with the sliding part and a protruding part arranged on the body, the sliding assembly is provided with a first working position, a second working position and a third working position which are sequentially arranged, and the third working position is close to the outlet end of the reagent bag; and the hole is formed in the upstream sliding path between the first working position and the third working position. According to the reagent bag provided by the invention, after air is introduced, the sliding assembly returns to the first working position from the third working position, so that the residual calibration liquid is limited in the pipeline to isolate air, and the problem of pollution caused by long-time contact between the calibration liquid and the air in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical diagnostic instruments, and particularly relates to a reagent pack for blood gas detection and a blood gas analyzer. Background Art

[0002] Blood gas analyzers are used clinically to detect oxygen partial pressure, carbon dioxide partial pressure, hydrogen ion concentration, etc., and then to judge the respiratory function, acid-base balance status, and electrolytes of the human body. A blood gas analyzer mainly includes a reagent pack, a detection card, and a measurement part. Referring to the structural schematic diagram shown in Figure 1 , a connecting pipeline for introducing a calibration solution and an air pipeline for introducing air are provided between the reagent pack and the detection card. A first pipeline switch 01 is provided on the air pipeline, and a second pipeline switch 02 is provided on the connecting pipeline at the outlet of the reagent pack. Before sample detection, the second pipeline switch 02 between the reagent pack and the detection card is opened, so that the calibration solution in the reagent pack flows into the detection card through the outlet pipeline 03, and the calibration solution calibrates the electrodes of the detection card; after calibration is completed, the second pipeline switch 02 between the reagent pack and the detection card is closed, and the first pipeline switch 01 between the air pipeline and the detection card is opened, so that air flows into the detection card through the outlet pipeline 03, and the calibration solution in the pipeline is emptied to avoid the residual calibration solution in the pipeline affecting the next calibration work.

[0003] However, the inventors of the present application found in the research process that, due to the long-term disconnection of the air pipeline between two calibrations, the calibration solution remaining between the second pipeline switch 02 and the outlet pipeline 03 comes into contact with air for a long time, resulting in contamination and even crystallization. If this contaminated calibration solution is used continuously during the next calibration, it may cause inaccurate calibration. Summary of the Invention

[0004] The present application provides a reagent pack for blood gas detection and a blood gas analyzer to solve the problem of contamination of the calibration solution due to its connection with air in the existing reagent pack.

[0005] In the first aspect of the present application, a reagent pack for blood gas detection is provided, including:

[0006] A reagent bag for storing a calibration solution;

[0007] A housing for accommodating the reagent bag, provided with an adapter for communicating with the reagent bag;

[0008] A pipeline for communicating the reagent bag with the adapter;

[0009] A sliding component, which is used to slide on a circumferentially arranged pipeline, includes a sliding part sleeved on the pipeline, a body fixedly connected to the sliding part, and a protruding part arranged on the body. The sliding component has a first working position, a second working position, and a third working position arranged in sequence, and the third working position is close to the outlet end of the reagent bag.

[0010] A hole is arranged on the upstream sliding path between the first working position and the third working position; when in the first working position and the second working position, the sliding part is used to cover the hole; when in the first working position and the third working position, the protruding part is used to disconnect the pipeline.

[0011] Optionally, the protruding part includes a first protruding part and a second protruding part arranged oppositely. When in the first working position, the first protruding part is used to disconnect the pipeline at a first disconnection position; when in the third working position, the second protruding part is used to disconnect the pipeline at a second disconnection position, and the first disconnection position is downstream of the second disconnection position.

[0012] Optionally, the sliding part includes: a first slider fixedly connected to the body and a second slider arranged in the middle of the first slider. The second slider is used to slide along the pipeline under the drive of the first slider.

[0013] Optionally, the pipeline includes: a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline arranged circumferentially and in sequence. The inlet end of the first pipeline is communicated with the reagent bag, and the outlet end of the fourth pipeline is communicated with the adapter;

[0014] The sliding part is sleeved on the second pipeline and the fourth pipeline; the hole is arranged on the second pipeline; the first protruding part is used to disconnect the third pipeline, and the second protruding part is used to disconnect the first pipeline.

[0015] Optionally, the first pipeline and the third pipeline are rubber hoses, and the second pipeline and the fourth pipeline are stainless steel needle tubes.

[0016] Optionally, the connection segments between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on the same side of the outer shell.

[0017] Optionally, two rows of discontinuous stoppers are arranged on the outer wall of the outer shell. The second pipeline and the fourth pipeline are erected on the stoppers, and the first pipeline and the third pipeline are arranged around the stoppers.

[0018] Optionally, a fence with protrusions is arranged on the outside of the stopper, and the protrusions are arranged oppositely to the first protruding part or the second protruding part.

[0019] Optionally, the sliding component slides laterally along the second pipeline and the fourth pipeline.

[0020] Optionally, the connecting sections between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are arranged on both sides of the housing.

[0021] Optionally, the housing is provided with through holes for passing through the connecting sections between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

[0022] Optionally, the sliding component slides longitudinally along the second pipeline and the fourth pipeline.

[0023] Optionally, a groove is provided on the outer wall of the housing, and the sliding component, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all arranged in the groove.

[0024] In the second aspect of the present application, a blood gas analyzer is provided, including the reagent pack provided by any one of the implementation manners of the first aspect.

[0025] As can be seen from the above technical solutions, the reagent pack provided by the present application cancels the air pipeline, and holes are provided on the pipeline between the reagent pack and the reagent card, and the holes are arranged on the upstream sliding path between the first working position and the third working position. When the sliding component is in the second working position, the calibration solution is introduced, and when it is in the third working position, air is introduced. The calibration solution remaining upstream of the hole remains in the pipeline. After the air is introduced, the sliding component returns from the third working position to the first working position, thereby restricting the remaining calibration solution in the pipeline to isolate the air, and solving the problem of contamination caused by the long-term contact between the calibration solution and the air in the prior art. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a reagent pack provided by the prior art;

[0027] Figure 2 It is a schematic main structural diagram of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0028] Figure 3 It is a schematic right view structural diagram of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0029] Figure 4(a) is a schematic structural diagram of a first working position of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0030] Figure 4(b) is a schematic structural diagram of a second working position of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0031] Figure 4(c) is a schematic structural diagram of the third working position of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0032] Figure 5 It is a schematic partial structural diagram of a reagent pack for blood gas detection provided by an embodiment of the present application;

[0033] Figure 6 It is a schematic main structural diagram of a reagent pack for blood gas detection provided by another embodiment of the present application;

[0034] Figure 7 It is a schematic right view structural diagram of a reagent pack for blood gas detection provided by another embodiment of the present application;

[0035] Figure 8 It is a schematic partial structural diagram of a reagent pack for blood gas detection provided by another embodiment of the present application.

[0036] Reference numerals:

[0037] 01 - First pipeline switch; 02 - Second pipeline switch; 03 - Outlet pipeline; 1 - Reagent bag; 2 - Outer shell; 21 - Adapter; 22 - Stopper; 23 - Enclosure; 231 - Protrusion; 24 - Baffle; 25 - Groove; 3 - Pipeline; 301 - First disconnection position; 302 - Second disconnection position; 31 - First pipeline; 32 - Second pipeline; 33 - Third pipeline; 34 - Fourth pipeline; 4 - Hole; 5 - Sliding assembly; 501 - First working position; 502 - Second working position; 503 - Third working position; 51 - Sliding part; 511 - First slider; 512 - Second slider; 52 - Body; 53 - Protruding part; 531 - First protruding part; 532 - Second protruding part. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Refer to Figure 2 and Figure 3Schematic structural diagram as shown. An embodiment of the present application provides a reagent kit for blood gas detection, including: a reagent bag 1 for storing calibration solution; a housing 2 for accommodating the reagent bag, provided with an adapter 21 for communicating with the reagent bag; a pipeline 3 for communicating the reagent bag 1 with the adapter 21; a sliding assembly 5 for sliding on the circumferentially arranged pipeline, including a sliding part 51 sleeved on the pipeline, a body 52 fixedly connected to the sliding part 51, and a protruding part 53 provided on the body. The sliding assembly 5 has a first working position 501, a second working position 502, and a third working position 503 arranged in sequence, and the third working position is close to the outlet end of the reagent bag; a hole 4 is provided on the upstream sliding path between the first working position 501 and the third working position 503; when in the first working position 501 and the second working position 502, the sliding part 51 is used to cover the hole 4, and when in the third working position 503, the sliding part 51 is used to release the hole 4 so that air can pass through the hole 4; when in the first working position 501 and the third working position 503, the protruding part 53 is used to disconnect the pipeline 3, and when in the second working position 502, the protruding part 53 is used to release the pipeline 3 so that the pipeline 3 is connected.

[0040] In the present application, "upstream" and "downstream" are determined according to the flow direction of the calibration solution. Under working conditions, the calibration solution flows from the reagent kit to the reagent card, and the place where the calibration solution arrives first is the upstream, and the place where it arrives later is the downstream.

[0041] In this embodiment, the reagent bag 1 is a replaceable consumable, usually a soft package. The housing 2 is a plastic housing. In order to facilitate the replacement of the reagent bag 1, the housing 2 is usually a separable structure. The reagent kit provided in this embodiment can be independently packaged before connecting to the instrument. A base for carrying the reagent kit is provided on the instrument, and the shape of the housing 2 matches that of the base.

[0042] Referring to the structural schematic diagram shown in Fig. 4, the sliding component 5 is restricted to slide between the surrounding pipelines. Referring to the structural schematic diagram shown in Fig. 4(a), when in the first working position 501, the pipeline 3 is disconnected and the hole 4 is covered. At this time, the reagent pack is in a completely enclosed state; referring to the structural schematic diagram shown in Fig. 4(b), when in the second working position 502, the pipeline 3 is connected and the hole 4 is covered. At this time, the calibration liquid in the reagent pack is transported to the adapter 21 through the pipeline 3, and the adapter 21 is connected to the test card, so that the calibration liquid is transported to the test card; referring to the structural schematic diagram shown in Fig. 4(c), when in the third working position 503, the pipeline 3 is disconnected and the hole 4 is not covered. At this time, the liquid path of the reagent pack is disconnected, and gas enters the pipeline 3 through the hole 4. As the gas is introduced, the calibration liquid in the pipeline at the downstream position of the hole 4 is emptied. After the gas gradually enters the test card, the remaining calibration liquid in the test card is discharged to the recovery area, so as to achieve the functions of cleaning the pipeline and isolating the liquid.

[0043] In this application, at the end of each calibration, the sliding component 5 returns from the third working position 501 and stays at the first working position 501. That is to say, after the sliding component 5 completes the action of introducing air in the third working position 503, it returns to the first working position 501. At this time, the pipeline 3 is still in a disconnected state, and since the hole 4 is arranged on the upstream sliding path, the remaining calibration liquid in the pipeline 3 can isolate air, thus avoiding the problem of pollution caused by the long-term contact between the remaining calibration liquid and air.

[0044] In this embodiment, a long strip-shaped hollow is arranged in the middle of the sliding component 5, and the hollow is used to install a sliding piece (not shown in the figure). The sliding piece can be driven by a motor. Driven by the sliding piece, the sliding component can switch between each working position, that is, the on-off of the reagent pack can be controlled.

[0045] From the above technical solutions, it can be seen that the reagent pack provided in this embodiment cancels the air pipeline, a hole 4 is arranged on the pipeline between the reagent pack and the reagent card, and the hole 4 is arranged on the upstream sliding path between the first working position and the third working position. The sliding component 5 introduces the calibration liquid in the second working position and introduces air in the third working position. The remaining calibration liquid upstream of the hole 4 remains in the pipeline 3. After introducing air, the sliding component 5 returns from the third working position 503 to the first working position 501, so as to limit the remaining calibration liquid in the pipeline 3 to isolate air, and solve the problem of pollution caused by the long-term contact between the calibration liquid and air in the prior art.

[0046] In the prior art, due to the relatively large liquid pressure in the reagent pack, there may be a problem that the calibration liquid overflows from the air pipeline when the switch on the air pipeline is opened. This application cancels the air pipeline, and while solving the problem of pollution of the remaining calibration liquid, it can also solve the problem of overflow.

[0047] Referring to Figure 3 the structural schematic diagram shown, the protruding part 53 includes a first protruding part 531 and a second protruding part 532 which are oppositely arranged. When in the first working position 501, the first protruding part 531 is used to press the first disconnection position 301 of the pipeline 3 to disconnect the pipeline 3; when in the third working position 503, the second protruding part 532 is used to press the second disconnection position 302 of the pipeline 3 to disconnect the pipeline 3.

[0048] In practical applications, the first working position 501, the second working position 502, and the third working position 503 are arranged in sequence. The sliding assembly 5 finally slides from the first working position 501 to the third working position 503. The first disconnection position 301 corresponds to the first working position 501. Based on the scenario defined in this embodiment, the first disconnection position 301 is arranged downstream of the second disconnection position 302.

[0049] In this embodiment, the hole 4 is arranged on the sliding path between the first disconnection position 301 and the second disconnection position 302. Since at the third working position 503, there is calibration liquid remaining in the pipeline upstream of the hole 4, if the sliding assembly 5 stays at the third working position 503, before the next calibration, the calibration liquid remaining in the pipeline upstream of the hole 4 will come into contact with air for a long time, resulting in contamination. Therefore, at the end of each calibration in this application, the sliding assembly 5 finally stays at the first working position 501 to ensure that the remaining calibration liquid can be restricted in the pipeline upstream of the first disconnection position 301, avoiding the contamination caused by the long-term contact between the remaining calibration liquid and air.

[0050] Referring to Figure 2 and Figure 5 the structural schematic diagram shown, the pipeline 3 includes: a first pipeline 31, a second pipeline 32, a third pipeline 33, and a fourth pipeline 34 which are arranged in a surrounding and sequential manner. The inlet end of the first pipeline 31 is communicated with the reagent bag 1, and the outlet end of the fourth pipeline 34 is communicated with the adapter 21.

[0051] The sliding part 51 is sleeved on the second pipeline 32 and the fourth pipeline 34; the hole 4 is arranged on the second pipeline 32; the first protruding part 531 is used to disconnect the third pipeline 33, and the second protruding part 532 is used to disconnect the first pipeline 31. The contact position between the first protruding part 531 and the third pipeline 33 is the first disconnection position 301, and the contact position between the second protruding part 532 and the first pipeline 31 is the second disconnection position 302.

[0052] The sliding path is the pipeline through which the sliding assembly 5 slides from the first working position 501 to the third working position 503, or from the third working position 503 to the first working position 501. In the present application, the sliding path is the second pipeline 32 and the fourth pipeline 34 which are parallel to each other, and the second pipeline 32 is the sliding path located upstream, so the hole 4 is arranged on the second pipeline 32. In this case, the hole 4 is located upstream of the first disconnection position 301, so as to limit the calibration liquid remaining upstream of the hole 4 to the upstream pipeline of the first disconnection position.

[0053] In this embodiment, in order to facilitate the sliding of the sliding assembly 5, the second pipeline 32 and the fourth pipeline 34 are set as stainless steel needle tubes. In order to facilitate the disconnection of the first pipeline 31 or the third pipeline 33 under the squeezing effect of the first protrusion 531 or the second protrusion 532, the first pipeline 31 and the third pipeline 33 are set as rubber hoses. The rubber hose has elasticity and can restore its deformation when the squeezing effect is lost.

[0054] Reference Figure 3 As shown in the structural schematic diagram, the sliding part 51 includes: a first slider 511 fixedly connected to the body 52 and a second slider 512 arranged in the middle of the first slider 511, and the second slider 512 is used to slide along the pipeline 3 driven by the first slider 511. Specifically, the end of the first slider 511 is hollowed out, and the second slider 512 is arranged in the hollowed-out area. The second slider 512 is used to seal the hole 4, and the hole 4 is arranged on the second pipeline 32. The second pipeline 32 or the fourth pipeline 34 is a stainless steel needle tube, so the second slider 512 can choose a material with good sealing performance, such as a hose. In this embodiment, the hose and the stainless steel needle tube have an interference fit. By adjusting the interference fit amount between the hose and the stainless steel needle tube, ensuring that the friction force is greater than the resilience of the hose, it can be ensured that the calibration solution in the reagent pack can achieve a completely sealed storage effect before being inserted into the instrument. Further, the hole 4 can only be kept sealed under the cover of the hose. Once the hose and the hole 4 are staggered, air can enter the pipeline through the hole 4.

[0055] The present application provides the following two specific implementations of the reagent package according to whether the connecting sections between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are arranged on the same side of the shell.

[0056] Reference Figure 2In the structural schematic diagram shown, in the first embodiment of the reagent pack, the connecting sections between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on the same side of the outer shell; for the convenience of the sliding of the sliding assembly 5, at this time, the sliding assembly 5, the first pipeline 31, the second pipeline 32, the third pipeline 33, and the fourth pipeline 34 are all arranged outside the outer shell. Except for the first pipeline 31 and the third pipeline 33 in the pipeline 3, the rest are stainless steel needle tubes.

[0057] In an implementable manner, two rows of discontinuous stoppers 22 are arranged on the outer wall of the outer shell 2. The second pipeline 32 and the fourth pipeline 34 are erected on the stoppers 22, and the first pipeline 31 and the third pipeline 33 are arranged around the stoppers 22. The space enclosed by the first pipeline 31, the second pipeline 32, the third pipeline 33, and the fourth pipeline 34 serves as the activity area of the sliding assembly. Since the stoppers 22 are discontinuous, the first protrusion 531 or the second protrusion 532 can pass through the stoppers 22 and be in pressing contact with the third pipeline 33 or the first pipeline 31.

[0058] To achieve a better pressing effect, a retaining wall 23 with a protrusion 231 is arranged outside the stopper 22, and the protrusion 231 is arranged opposite to the first protrusion 531 or the second protrusion 532. When the sliding assembly 5 is pressed to one side, the rubber tube is restricted between the protrusion 231 and the protrusion 53, and the disconnection of the pipeline can be achieved. In addition, the bend formed between the retaining wall 23 and the stopper 22 restricts the rubber tube within a certain space, preventing the rubber tube from being displaced under the pressing action and causing the pipeline to not be completely disconnected.

[0059] Furthermore, the sliding assembly 5 slides horizontally along the second pipeline 32 and the fourth pipeline 34. Therefore, the second pipeline 32 and the fourth pipeline 34 are arranged horizontally, and the first pipeline 31 and the third pipeline 33 are arranged vertically.

[0060] The connecting sections between the pipelines can be integrally arranged with one of the pipelines. For example, a stainless steel elbow is used for connection; or an additional connector can be used for separate arrangement.

[0061] In this embodiment, "horizontal" refers to the direction parallel to the horizontal plane in the normal use state of the reagent pack, and "vertical" refers to the direction perpendicular to the horizontal plane in the normal use state of the reagent pack, which is only used to illustrate the positional relationship between the components and should not be used as a limitation to this application.

[0062] Refer to Figure 6 and Figure 7In the structural schematic diagram shown, in the second embodiment of the reagent pack, the connecting sections between the first pipeline 31, the second pipeline 32, the third pipeline 33 and the fourth pipeline 34 are arranged on both sides of the housing 2; at this time, except for the second pipeline 32 and the fourth pipeline 34, the other pipelines are all rubber hoses.

[0063] Referring to Figure 7 and Figure 8 In the structural schematic diagram shown, the housing 2 is provided with through holes (not shown in the figure) for passing through the connecting sections between the first pipeline 31, the second pipeline 32, the third pipeline 33 and the fourth pipeline 34. In order to realize the passing through of the connecting sections of each pipeline, an adjacent auxiliary area and a sliding area are arranged on the outer wall of the housing 2. The auxiliary area is used to assist in passing through the pipeline 3, the sliding assembly 5 slides in the sliding area, the second pipeline 32 and the fourth pipeline 34 penetrate through the auxiliary area and the sliding area, and a baffle 24 is arranged between the auxiliary area and the sliding area. In the sliding area, one side close to the baffle 24 and its opposite side are used to arrange the first pipeline 31 and the third pipeline 33.

[0064] Further, the first pipeline 31 is arranged on the side close to the baffle 24. The connecting sections between the first pipeline 31 and the second pipeline 32, between the second pipeline 32 and the third pipeline 33, and between the third pipeline 33 and the fourth pipeline 34 are all arranged on the inner side wall of the housing, and the connecting sections are all rubber hoses. In order to improve the sealing effect, a right-angle joint (not shown in the figure) is adopted at the connection between the rubber hose and the stainless steel pipe.

[0065] Further, due to the space limitation of the side wall of the housing, the auxiliary area and the sliding area are arranged adjacent to each other up and down. Therefore, the sliding assembly 5 slides longitudinally along the second pipeline 32 and the fourth pipeline 33.

[0066] For different embodiments of the reagent pack, grooves 25 are arranged on the outer wall of the housing 2, and the sliding assembly 5 and the first pipeline 31, the second pipeline 32, the third pipeline 33 and the fourth pipeline 34 are all arranged in the grooves 25.

[0067] In this application, the housing 2 can be a semi-closed structure or a fully-closed structure; when the housing is a fully-closed structure, in order to facilitate the replacement of the reagent pack, the housing 2 includes two separable parts, and the specific separation method can be adjusted according to actual needs. For example, the side wall for installing the sliding assembly 5 and the other parts of the housing 2 can be separated, or the opposite side of the side wall for installing the sliding assembly 5 and the other parts of the housing 2 can be separated, or the bottom of the housing and the other parts can be separated.

[0068] The above two embodiments can both be used in reagent packs for blood gas detection. In the first embodiment, the connecting sections between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on the same side of the housing. The surrounding manner of the pipelines is simple, the pipeline conveying distance is relatively short, and except for the first pipeline 31 and the third pipeline 33, the rest are all stainless steel syringes, so the overall service life is relatively long. In the second embodiment, the connecting sections between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on both sides of the housing. The surrounding manner of the pipelines is complex, but except for the second pipeline 32 and the fourth pipeline 34, the rest are all rubber hoses. Rubber hoses are consumables, and such consumables are easily available and the cost is relatively low.

[0069] The present application also provides a blood gas analyzer, including Figure 2 or Figure 6 The reagent pack provided by any one of the implementation manners. The blood gas analyzer provided by the present application has all the technical effects of the above reagent pack, which will not be elaborated here.

[0070] The above are only the embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention pending approval.

Claims

1. A reagent kit for blood gas detection, characterized in that, it includes: a reagent bag for storing calibration liquid; a housing for accommodating the reagent bag, provided with an adapter for communicating with the reagent bag; a pipeline for communicating the reagent bag with the adapter; a sliding component for sliding on the circumferentially arranged pipeline, including a sliding part sleeved on the pipeline, a body fixedly connected to the sliding part, and a protruding part arranged on the body. The sliding component has a first working position, a second working position, and a third working position arranged in sequence, and the third working position is close to the outlet end of the reagent bag; a hole is arranged on the upstream sliding path between the first working position and the third working position. When in the first working position and the second working position, the sliding part is used to cover the hole; when in the first working position and the third working position, the protruding part is used to disconnect the pipeline.

2. The reagent kit for blood gas detection according to claim 1, characterized in that, the protruding part includes a first protruding part and a second protruding part arranged oppositely. When in the first working position, the first protruding part is used to disconnect the pipeline at the first disconnection position; when in the third working position, the second protruding part is used to disconnect the pipeline at the second disconnection position, and the first disconnection position is downstream of the second disconnection position.

3. The reagent kit for blood gas detection according to claim 2, characterized in that, the pipeline includes: a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline arranged circumferentially and in sequence. The inlet end of the first pipeline is communicated with the reagent bag, and the outlet end of the fourth pipeline is communicated with the adapter; the sliding part is sleeved on the second pipeline and the fourth pipeline; the hole is arranged on the second pipeline; the first protruding part is used to disconnect the third pipeline, and the second protruding part is used to disconnect the first pipeline.

4. The reagent kit for blood gas detection according to claim 3, characterized in that, the first pipeline and the third pipeline are rubber hoses, and the second pipeline and the fourth pipeline are stainless steel needle tubes.

5. The reagent kit for blood gas detection according to claim 3, characterized in that, the connection sections between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on the same side of the housing.

6. The reagent kit for blood gas detection according to claim 5, characterized in that, two rows of discontinuous stoppers are arranged on the outer wall of the housing. The second pipeline and the fourth pipeline are erected on the stoppers, and the first pipeline and the third pipeline are arranged around the stoppers.

7. The reagent kit for blood gas detection according to claim 6, characterized in that, a fence with protrusions is arranged outside the stopper, and the protrusion is arranged oppositely to the first protruding part or the second protruding part.

8. The reagent kit for blood gas detection according to claim 3, characterized in that, the connection sections between the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are arranged on both sides of the housing.

9. The reagent kit for blood gas detection according to claim 8, It is characterized in that the housing is provided with through holes for passing through the connecting sections between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

10. A blood gas analyzer It is characterized in that it includes the reagent pack according to any one of claims 1 to 9.

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