Dye liquor extraction device and blood analyzer

Abstract

The utility model discloses a dye liquor extraction device and a blood analyzer. According to the dye liquor extraction device, dye liquor is stored through a dye liquor storage mechanism, and a first opening is formed in one end of the dye liquor storage mechanism. The shell is provided with a second opening, the second opening is used for being communicated with the outside, the side wall, provided with the second opening, of the shell is connected with one side of the sealing piece, and the other side of the sealing piece is connected with the side, provided with the first opening, of the dye liquor storage mechanism. The sealing element is used for sealing the first opening, and after the sealing element is punctured by the sampling needle, the dye liquor in the dye liquor storage mechanism is extracted by the sampling needle. Based on the mode, the sealing piece can seal the first opening of the dye liquor storage mechanism so as to isolate the dye liquor in the dye liquor storage mechanism from the outside, the pollution degree of external impurities to the dye liquor is reduced, and the stability of the dye liquor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sample detection, and in particular to a dye solution extraction device and a blood analyzer. Background Art

[0002] In the prior art, some blood analyzers use specific fluorescent dyes to process cells. The fluorescent dyes in the cells produce a certain fluorescence intensity under the excitation of a laser of a specific wavelength, and the analyzer then outputs detection parameters based on at least the fluorescence intensity. The dye used has the characteristics of water absorption and light focusing. At present, the dye sample is usually connected to the dye storage mechanism through a pipeline to collect and transport the dye; or, the dye in the dye storage mechanism can be sucked by a sampling needle to add the dye to the reaction pool, and then the corresponding sample can be prepared based on the dye collected in the reaction pool for sample detection.

[0003] The defects of the prior art are that the method of collecting and transporting dye solution through pipelines will cause a large amount of dye solution to remain in the pipelines, which is likely to cause waste of dye solution; and the method of sucking dye solution with a sample needle will cause the dye solution storage mechanism to be in an open state, the dye solution is easy to volatilize, and impurities such as dust in the outside air are easy to contaminate the dye solution, which reduces the stability of the dye solution. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the present application provides a dye solution extraction device and a blood analyzer.

[0005] In order to solve the technical problems existing in the prior art, the present application provides a first technical solution: a dye liquid extraction device is provided, comprising a dye liquid storage mechanism, a shell and a sealing member. The dye liquid storage mechanism is used to store dye liquid, and a first opening is provided at one end of the dye liquid storage mechanism; the shell is provided with a second opening, and the second opening is used to communicate with the outside world; the side wall of the shell provided with the second opening is connected to one side of the sealing member, and the other side of the sealing member is connected to the side of the dye liquid storage mechanism provided with the first opening; wherein the sealing member is used to seal the first opening, and after the sealing member is punctured by the sampling needle, the dye liquid in the dye liquid storage mechanism is extracted by the sampling needle.

[0006] Optionally, the sealing member comprises a first sealing gasket, and the first sealing gasket is used to maintain the air tightness in the dye storage mechanism after being punctured, so as to isolate the dye in the dye storage mechanism from the external air.

[0007] Optionally, the above-mentioned seal also includes a second sealing gasket, the side wall of the above-mentioned shell provided with the second opening is connected to one side of the first sealing gasket, the other side of the first sealing gasket is connected to one side of the second sealing gasket, and the other side of the second sealing gasket is connected to one side of the dye storage mechanism provided with the first opening.

[0008] Optionally, the second sealing gasket includes a raised portion and a recessed portion, the raised portion is arranged corresponding to the second opening and is used to be punctured by the sampling needle, and the recessed portion is arranged around the raised portion and is used to collect debris generated when the first sealing gasket is punctured.

[0009] Optionally, the shell is provided with a receiving space, the receiving space is communicated with the second opening, and the first sealing gasket and the second sealing gasket are installed in the receiving space.

[0010] Optionally, the thickness of the first sealing gasket is greater than the thickness of the protruding portion.

[0011] Optionally, the first sealing pad is a silicone pad or a rubber pad, or the sealing member further includes a second sealing pad, and the first sealing pad and the second sealing pad are silicone pads or rubber pads.

[0012] Optionally, a first thread is provided on the inner wall of the shell, and a second thread is provided on the outer wall of the dye storage mechanism, and the first thread is meshed with the second thread to achieve a detachable connection between the shell and the dye storage mechanism.

[0013] Optionally, the sealing member is used to maintain the air pressure of the dye storage mechanism between -30 kPa and -60 kPa after being punctured.

[0014] In order to solve the technical problems existing in the prior art, the present application provides a second technical solution: a blood analyzer is provided, comprising a main body, a dye extraction device as described above, and a sampling assembly. The dye extraction device is arranged on the main body, and the dye extraction device comprises a dye storage mechanism, a shell, and a sealing member; the sampling assembly comprises a sampling needle, and the sampling needle is used to pass through the second opening of the shell and puncture the sealing member of the dye extraction device, and the sampling needle is also used to extract the dye in the dye storage mechanism.

[0015] Compared with the prior art, the dye liquid extraction device of the present application stores the dye liquid through a dye liquid storage mechanism, and a first opening is provided at one end of the dye liquid storage mechanism. The shell is provided with a second opening, and the second opening is used to communicate with the outside world. The side wall of the shell corresponding to the second opening is connected to one side of the seal, and the other side of the seal is connected to the side of the dye liquid storage mechanism close to the first opening. The seal is used to seal the first opening, and after the seal is punctured by the sampling needle, the dye liquid in the dye liquid storage mechanism is extracted by the sampling needle. Based on the above method, the seal of the present application can seal the first opening of the dye liquid storage mechanism to isolate the dye liquid in the dye liquid storage mechanism from the outside world, reduce the degree of contamination of the dye liquid by external impurities, and improve the stability of the dye liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a dye solution extraction device provided by the present application;

[0018] Figure 2 is a structural schematic diagram of another embodiment of the dye solution extraction device provided by the present application;

[0019] Figure 3 It is a structural schematic diagram of another embodiment of the dye solution extraction device provided by the present application;

[0020] Figure 4 It is a structural schematic diagram of an embodiment of a blood analyzer provided in the present application. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present application.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or connected through an intermediate medium. For ordinary technicians in this field, if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, the directional indications are only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] The present application proposes a dye extraction device, which can be a part of a blood analyzer. Exemplarily, the blood analyzer is provided with multiple working positions, which can include a sampling position, a dye extraction position, and a sample preparation position where a reaction pool is located; the sampling position can be used to hold a test tube or other type of container containing a sample, and is used for the sampling component to move thereto to collect the sample to obtain the sample to be tested; the dye extraction position can be used to hold a dye extraction device, and the dye extraction device is used for the sampling component to move thereto and extract the dye, and the sampling component can inject the acquired sample and dye into the reaction pool respectively to prepare the sample and obtain a sample solution or mixture that can be used for sample detection, so as to prepare for the subsequent corresponding sample detection operation and complete the sample analysis.

[0025] Among them, the dye extraction device of this embodiment is used to store dye, and the dye includes but is not limited to nucleic acid fluorescent dyes. For example, after the blood cells are treated with special hemolysin, the dye can be used to quickly enter the cytoplasm and nucleus and perform nucleic acid staining. The dye in the cell produces a certain fluorescence intensity under the excitation of a laser of a specific wavelength. This fluorescence intensity is positively correlated with the nucleic acid content of the cell, so that the blood analyzer can obtain specific sample information of the blood cells through the fluorescence intensity of the blood cells, so as to obtain more reliable and accurate sample detection results.

[0026] See also Figure 1 , Figure 1 Schematic diagram of the structure of an embodiment of the dye solution extraction device provided by the present application. Figure 1As shown, the dye liquid extraction device 10 of this embodiment includes a dye liquid storage mechanism 11 , a shell 12 and a sealing member 13 .

[0027] The dye storage mechanism 11 is used to store dye, and a first opening 110 is provided at one end of the dye storage mechanism 11; the shell 12 is provided with a second opening 120, and the second opening 120 is used to communicate with the outside world; the side wall of the shell 12 provided with the second opening 120 is connected to one side of the seal 13, and the other side of the seal 13 is connected to the side of the dye storage mechanism 11 provided with the first opening 110; the seal 13 is used to seal the first opening 110, and after the seal 13 is punctured by the sampling needle 310, the dye in the dye storage mechanism 11 is extracted by the sampling needle 310.

[0028] Specifically, the dye storage mechanism 11 can be used to store dye, and the dye storage mechanism 11 can have a dye space, in which the dye is stored, and one end of the dye storage mechanism 11 is provided with a first opening 110, and the first opening 110 is used for the sampling needle 310 to extend into and absorb the dye in the dye space. When the housing 12 and the seal 13 are not installed on the dye storage mechanism 11, the outside air can enter the dye space through the first opening 110 and contact the dye. The housing 12, the seal 13 and the first opening 110 of the dye storage mechanism 11 are arranged correspondingly, and the seal 13 is used to seal the first opening 110 of the dye storage mechanism 11, and the housing 12 is provided with a through second opening 120, and the sampling needle 310 is used to contact and puncture the seal 13 through the second opening 120. In a possible embodiment, the central axes of the first opening 110 and the second opening 120 are the same or close to each other, so that the sampling needle 310 can accurately pass through the first opening 110 and the second opening 120 to enter the dye solution space. The housing 12 can be understood as a bottle cap for covering the first opening 110, and the housing 12 is also used to assist in the installation of the sealing member 13, so that the sealing member 13 can be fixed and seal the first opening 110.

[0029] The sealing member 13 can be punctured by the sampling needle 310. In a possible implementation, when the sampling needle 310 punctures the sealing member 13, a small puncture hole is formed on the sealing member 13. The sealing member 13 has a large resilience, so that when the sampling needle 310 leaves the surface of the sealing member 13, the puncture hole of the sealing member 13 can rebound and further reduce the size of the puncture hole, making it difficult for external air, impurities, etc. to enter the dye storage mechanism 11 through the puncture hole. Therefore, the sealing member 13 of this embodiment can continue to seal the first opening 110 after being punctured by the sampling needle 310, so that the dye can be stored in the dye storage mechanism 11 for a long time, further improving the stability of the dye.

[0030] In the embodiment of the present application, the dye liquid extraction device 10 stores the dye liquid through the dye liquid storage mechanism 11, and one end of the dye liquid storage mechanism 11 is provided with a first opening 110; the housing 12 is provided with a second opening 120, and the second opening 120 is used to communicate with the outside world, and the side wall of the housing 12 corresponding to the second opening 120 is connected to one side of the sealing member 13, and the other side of the sealing member 13 is connected to the side of the dye liquid storage mechanism 11 close to the first opening 110. The sealing member 13 is used to seal the first opening 110. After the sealing member 13 is punctured by the sampling needle 310, the dye liquid in the dye liquid storage mechanism 11 is extracted by the sampling needle 310. The sealing member 13 can continuously isolate the dye liquid in the dye liquid storage mechanism 11 from the outside world, reduce the degree of contamination of the dye liquid by external impurities, and improve the stability of the dye liquid.

[0031] In one embodiment, see Figure 2 , Figure 2 Schematic diagram of another embodiment of the dye solution extraction device provided by the present application. Figure 2 As shown, the sealing member 13 includes a first sealing gasket 131, which is used to maintain the airtightness in the dye storage mechanism 11 after being punctured, so as to isolate the dye in the dye storage mechanism 11 from the external air.

[0032] Specifically, the first sealing gasket 131 is located between the housing 12 and the side wall of the dye storage mechanism 11. In this embodiment, the first opening 110 is sealed by a first sealing gasket 131. The first sealing gasket 131 is used to maintain the air tightness in the dye storage mechanism 11 after being punctured multiple times by the sampling needle 310, so as to isolate the dye in the dye storage mechanism 11 from the outside air. Among them, the first sealing gasket 131 of the present application can be a high-toughness sealing film, which can maintain the air tightness in the dye storage mechanism 11 within a preset range, reduce impurities in the outside air from entering the dye space and polluting the dye, reduce the volatility of the dye, and improve the stability of the dye.

[0033] Optionally, see Figure 3 , Figure 3 FIG. 1 is a schematic diagram of the structure of another embodiment of the dye solution extraction device provided in the present application. Figure 3 As shown, the sealing member 13 further includes a second sealing gasket 132 , and the housing 12 , the first sealing gasket 131 , the second sealing gasket 132 and the dye storage mechanism 11 are stacked.

[0034] In one embodiment, the side wall of the housing 12 provided with the second opening 120 is connected to one side of the first sealing gasket 131, the other side of the first sealing gasket 131 is connected to one side of the second sealing gasket 132, and the other side of the second sealing gasket 132 is connected to one side of the dye storage mechanism 11 provided with the first opening 110. Specifically, the first sealing gasket 131 and the second sealing gasket 132 are interposed between the housing 12 and the dye storage mechanism 11, the second sealing gasket 132 is directly covered on the first opening 110 and used to seal the first opening 110, and the first sealing gasket 131 is located above the second sealing gasket 132 and is used to seal the puncture holes on the first opening 110 and the second sealing gasket 132 at the same time. In a possible implementation, when one of the first sealing gasket 131 and the second sealing gasket 132 may lose its sealing performance after multiple punctures, the other of the first sealing gasket 131 and the second sealing gasket 132 can also serve as a safety measure and continue to seal the first opening 110, thereby ensuring the sealing performance of the dye storage mechanism 11 and further improving the stability of the dye.

[0035] Among them, the first sealing gasket 131 and the second sealing gasket 132 can be gaskets made of the same sealing material, or gaskets made of materials with similar sealing properties. The shapes and sizes of the first sealing gasket 131 and the second sealing gasket 132 can be the same or different, and are not specifically limited here.

[0036] In the embodiment of the present application, the first opening 110 is doubly sealed by the first sealing gasket 131 and the second sealing gasket 132 to form two sealing defense lines, so that it is difficult for outside air to enter the dye liquid space through the puncture holes on the first sealing gasket 131 and the second sealing gasket 132, thereby ensuring the sealing performance of the dye liquid storage mechanism 11 and further improving the stability of the dye liquid.

[0037] Furthermore, the second sealing gasket 132 includes a gasket and a sealing body arranged on the gasket, the sealing body includes a protrusion 1321 and a recessed portion 1322, the protrusion 1321 is arranged corresponding to the second opening 120 and is used to be punctured by the sampling needle 310, the recessed portion 1322 surrounds the protrusion 1321 and is connected to the gasket, and the recessed portion 1322 is used to collect debris generated when the first sealing gasket 131 is punctured.

[0038] Specifically, the gasket is used to provide support for the sealing body so that the sealing body can be stably set at the current position. The sealing body is set on the gasket and includes a protrusion 1321 and a recessed portion 1322. The protrusion position of the protrusion 1321 corresponds to the first opening 110 and the second opening 120, so that the sampling needle 310 can puncture the protrusion 1321. Among them, at least part of the height of the protrusion 1321 is greater than the height of the recessed portion 1322; the protrusion 1321 and the recessed portion 1322 can be connected by an extended surface, the extended surface is an inclined surface, and the height of the side of the extended surface close to the protrusion 1321 is greater than the height of the side of the extended surface close to the recessed portion 1322.

[0039] When the sampling needle 310 punctures the seal 13, the sampling needle 310 first contacts and punctures the first sealing gasket 131 through the second opening 120. When the first sealing gasket 131 is punctured, a small amount of debris may be generated. The debris falls to the extension surface of the protrusion 1321 under the action of gravity, and falls to the recessed portion 1322 through the extension surface, so that the recessed portion 1322 can be used to collect the debris generated when the first sealing gasket 131 is punctured, reducing the possibility of the debris falling into the dye liquid space and contaminating the dye liquid. The sampling needle 310 continues to puncture the protrusion 1321 of the second sealing gasket 132 and enters the dye liquid space to extract the dye liquid.

[0040] Furthermore, the housing 12 is provided with a receiving space, the receiving space is communicated with the second opening 120 , and the first sealing gasket 131 and the second sealing gasket 132 are installed in the receiving space.

[0041] Specifically, a housing space is provided on one side of the housing 12 away from the second opening 120, the housing space is communicated with the second opening 120, a first sealing gasket 131 and a second sealing gasket 132 are provided in the housing space, and the first sealing gasket 131 and the second sealing gasket 132 are arranged along the gravity direction, so that the first sealing gasket 131 and the second sealing gasket 132 can be fixed in the housing space and fit with the side wall of the dye storage mechanism 11. In a possible embodiment, the first sealing gasket 131 and the second sealing gasket 132 fit closely in the housing space, or the first sealing gasket 131 and the second sealing gasket 132 are arranged at intervals, so that the first sealing gasket 131 and the second sealing gasket 132 can separate the outside air from the dye space.

[0042] Furthermore, the second sealing pad 132 includes a protrusion 1321 and a recess 1322 . The protrusion 1321 is arranged corresponding to the second opening 120 and is used to be punctured by the sampling needle 310 . The recess 1322 is arranged around the protrusion 1321 . The thickness of the first sealing pad 131 is greater than that of the protrusion 1321 .

[0043] Specifically, the central axes of the protrusion 1321, the second opening 120 and the first opening 110 are coaxially arranged or approximately coaxial, so that the sampling needle 310 can contact the protrusion 1321 of the second sealing pad 132 after extending into the second opening 120 and perform puncture, and the sampling needle 310 after puncture can accurately face the first opening 110 and extract the dye solution, thereby ensuring the normal operation of the sampling needle 310. Among them, the thickness of the first sealing pad 131 is greater than the thickness of the protrusion 1321. Exemplarily, the thickness of the first sealing pad 131 can be between 1.5 mm and 3 mm, and the thickness of the protrusion 1321 of the second sealing pad 132 can be between 0.2 mm and 1 mm; for example, the thickness of the first sealing pad 131 can be 1.5, 1.8, 2, 2.2, 2.5, 2.8 or 3 mm, and the thickness of the second sealing pad 132 can be 0.2, 0.4, 0.6, 0.8 or 1 mm.

[0044] In this embodiment, the thickness of the protrusion 1321 is relatively small, so that less debris is generated when the sampling needle 310 punctures the protrusion 1321 of the second sealing pad 132, reducing the adverse effect of the debris dropped by the second sealing pad 132 due to puncture on the sample detection; the thickness of the first sealing pad 131 is greater than the thickness of the protrusion 1321, so that the first sealing pad 131 can stably isolate the outside air, improve the isolation effect of the first sealing pad 131, and further ensure the stability of the dye liquid space.

[0045] Optionally, the first sealing pad 131 is a silicone pad or a rubber pad, or the sealing member 13 further includes a second sealing pad 132 , and the first sealing pad 131 and the second sealing pad 132 are silicone pads or rubber pads.

[0046] Specifically, at least one of the first sealing pad 131 and the second sealing pad 132 can be a silicone pad or a rubber pad. The silicone pad and the rubber pad can be made of special silicone or rubber to improve the flexibility of the first sealing pad 131 and / or the second sealing pad 132, so that the puncture hole generated when the sampling needle 310 punctures the first sealing pad 131 and / or the second sealing pad 132 can retract under the action of elastic recovery, so that the first sealing pad 131 and / or the second sealing pad 132 can continue to seal the first opening 110 after being punctured, so that the dye can be stored in the dye storage mechanism 11 for a long time, further improving the stability of the dye.

[0047] In one embodiment, a first thread 121 is provided on the inner wall of the shell 12 , and a second thread 111 is provided on the outer wall of the dye storage mechanism 11 . The first thread 121 and the second thread 111 are engaged to achieve a detachable connection between the shell 12 and the dye storage mechanism 11 .

[0048] Specifically, the first thread 121 on the inner wall of the shell 12 and the second thread 111 of the dye storage mechanism 11 can mesh with each other, so that the user can install the shell 12 on the dye storage mechanism 11 by tightening the shell 12, and the seal 13 forms a seal on the first opening 110 of the dye storage mechanism 11; at the same time, when the user replaces the dye storage mechanism 11 or the shell 12, the shell 12 can be unscrewed in the opposite direction to remove the shell 12 from the dye storage mechanism 11, which is convenient for the user to perform maintenance and replacement, thereby improving the user's experience.

[0049] In one embodiment, the seal 13 is used to maintain the air pressure of the dye storage mechanism 11 between -30 kPa and -60 kPa after being punctured.

[0050] Specifically, after the sealing member 13 is punctured by the sampling needle 310, due to the rebound effect and good sealing performance of the sealing member 13 itself, the sealing member 13 can continue to seal the first opening 110, and the air pressure of the dye storage mechanism 11 is maintained between -30kPa and -60kPa. Exemplarily, during the process of the sealing member 13 sealing the first opening 110, the air pressure of the dye storage mechanism 11 can be -30kPa, -35kPa, -40kPa, -45kPa, -50kPa, -55kPa or -60kPa.

[0051] It can be understood that, since the seal 13 can maintain the air pressure of the dye storage mechanism 11 in a negative pressure state, when the sampling needle 310 pierces the seal 13 and reaches below the liquid level of the dye storage mechanism 11, the air pressure inside the sampling needle 310 can be maintained at a positive pressure, so that the atmospheric pressure difference between the inside of the sampling needle 310 and the dye space pushes the dye in the dye space into the liquid suction space of the sampling needle 310, thereby improving the extraction efficiency of the dye and achieving quantitative extraction of the dye.

[0052] See also Figure 4 , Figure 4 FIG. 1 is a schematic diagram of the structure of an embodiment of a blood analyzer provided by the present application. Figure 4 As shown, the embodiment of the present application also proposes a blood analyzer, which includes a main body 20, a dye extraction device 10 as in any of the above embodiments, and a sampling assembly 30. The dye extraction device 10 is arranged on the main body 20, and includes a dye storage mechanism 11, a shell 12, and a sealing member 13; the sampling assembly 30 includes a sampling needle 310, and the sampling needle 310 is used to pass through the second opening 120 of the shell 12 and puncture the sealing member 13 of the dye extraction device 10, and the sampling needle 310 is also used to extract the dye in the dye storage mechanism 11.

[0053] The blood analyzer may further include a reaction component and a detection component, wherein the reaction component includes at least one reaction pool, and the sampling needle 310 is used to add the extracted dye solution to the reaction pool, and to add the acquired sample to the reaction pool, so that the dye solution and the sample can be mixed and prepared in the reaction pool to obtain a sample solution to be tested. The detection component is used to perform optical detection on the sample solution by laser scattering method to obtain the sample detection result.

[0054] In a possible implementation, the blood analyzer also includes a sampling assembly, which is used to obtain a test tube rack for sampling. The test tube rack can be equipped with one or more test tubes. The sampling assembly is also used to transfer the test tube to a preset position. The sampling assembly 30 can extract the test tube and obtain the sample through the sampling needle 310, or the sampling assembly 30 can extract the sample through other sample needles, which is not specifically limited here.

[0055] Different from the prior art, the dye liquid extraction device 10 of this embodiment seals the first opening 110 through the sealing member 13; after the sealing member 13 is punctured by the sampling needle 310, the dye liquid in the dye liquid storage mechanism 11 is extracted by the sampling needle 310, and after the sampling needle 310 leaves the surface of the sealing member 13, the sealing member 13 can continue to isolate the dye liquid in the dye liquid storage mechanism 11 from the outside world, so that it is difficult for the outside air, impurities, etc. to enter the dye liquid storage mechanism 11 through the puncture hole, thereby reducing the degree of contamination of the dye liquid by external impurities and improving the stability of the dye liquid.

[0056] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A dye liquor extraction device, It is characterized in that include: A dye storage mechanism, used for storing dye, wherein one end of the dye storage mechanism is provided with a first opening; The housing is provided with a second opening, wherein the second opening is used for communicating with the outside; A sealing member, wherein a side wall of the housing provided with the second opening is connected to one side of the sealing member, and the other side of the sealing member is connected to a side of the dye storage mechanism provided with the first opening; The sealing member is used to seal the first opening, and after the sealing member is punctured by the sampling needle, the dye in the dye storage mechanism is extracted by the sampling needle.

2. The dye liquor extraction device according to claim 1, It is characterized in that The sealing member comprises a first sealing gasket, which is used to maintain the air tightness in the dye storage mechanism after being punctured, so as to isolate the dye in the dye storage mechanism from the external air.

3. The dye liquor extraction device according to claim 2, It is characterized in that The seal also includes a second sealing gasket, the side wall of the shell provided with the second opening is connected to one side of the first sealing gasket, the other side of the first sealing gasket is connected to one side of the second sealing gasket, and the other side of the second sealing gasket is connected to one side of the dye storage mechanism provided with the first opening.

4. The dye liquor extraction device according to claim 3, It is characterized in that The second sealing pad includes a raised portion and a recessed portion, wherein the raised portion is arranged corresponding to the second opening and is used to be punctured by the sampling needle, and the recessed portion is arranged around the raised portion and is used to collect debris generated when the first sealing pad is punctured.

5. The dye liquor extraction device according to claim 3, It is characterized in that The housing is provided with a receiving space, the receiving space is communicated with the second opening, and the first sealing gasket and the second sealing gasket are installed in the receiving space.

6. The dye liquor extraction device according to claim 4, It is characterized in that The thickness of the first sealing gasket is greater than the thickness of the protruding portion.

7. The dye liquor extraction device according to claim 2 or 3, It is characterized in that The first sealing pad is a silicone pad or a rubber pad, or the sealing member further includes a second sealing pad, and the first sealing pad and the second sealing pad are silicone pads or rubber pads.

8. The dye liquor extraction device according to claim 1, It is characterized in that A first thread is arranged on the inner wall of the shell, and a second thread is arranged on the outer wall of the dye storage mechanism. The first thread is meshed with the second thread to realize a detachable connection between the shell and the dye storage mechanism.

9. The dye liquor extraction device according to claim 1, It is characterized in that The sealing member is used to maintain the air pressure of the dye storage mechanism between -30 kPa and -60 kPa after being punctured.

10. A blood analyzer, It is characterized in that include: main body; The dye liquid extraction device according to any one of claims 1 to 9, arranged on the main body, the dye liquid extraction device comprising a dye liquid storage mechanism, a shell and a sealing member; The sampling assembly comprises a sampling needle, which is used to pass through the second opening of the shell and puncture the sealing component of the dye liquid extraction device, and is also used to extract the dye from the dye liquid storage mechanism.

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