Instrument for safely and quantitatively subpackaging tissue fluid
By designing instruments for safe and quantitative aliquoting of tissue fluid, and using the liquid extraction pump and air suction port to adsorb formaldehyde gas, the problems of leakage and contamination during the formaldehyde fixed liquid are solved, and safe and quantitative aliquoting and purification effects are achieved.
Patent Information
- Application Number
- CN202421081540.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the prior art, the aliquoting process of formaldehyde tissue fixation liquid is prone to leakage, causing high concentrations of formaldehyde volatilization, threatening the health of staff and contaminating the laboratory environment.
An instrument for safe quantification of tissue liquid is designed, and a liquid extraction pump and flow valve are used to achieve quantitative liquid extraction, and the volatile formaldehyde gas is adsorbed and purified through the suction port and activated carbon filter cartridge to ensure the sealing and safety of the dispensing process. .
It effectively prevents the leakage of tissue fixation fluid, reduces the pollution of formaldehyde to the working environment, and realizes a safe and quantitative aliquoting operation outside the fume hood.
Smart Images

Figure CN222312687U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pathology, and in particular relates to an instrument for safely and quantitatively packaging tissue fluid. Background Art
[0002] Tissue fixative is a commonly used reagent in pathology technology. Currently, the mainstream commonly used tissue fixative is formaldehyde solution. The advantages of formaldehyde fixative are: it can increase tissue toughness and keep the tissue in the state of ex vivo as much as possible (smaller tissue shrinkage); but its biggest disadvantage is that formaldehyde is carcinogenic, which is a major factor threatening the health of pathology technical workers. At present, when packaging formaldehyde tissue fixative, most of them are poured or pressed. Both of these packaging methods can only be carried out in a fume hood, and are prone to leakage during the packaging process, resulting in a large amount of tissue fixative scattered on the surface of the fume hood, causing high concentrations of formaldehyde to volatilize, posing a safety hazard to the working environment. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an instrument for safely and quantitatively dispensing tissue fluid in view of the above-mentioned deficiencies in the prior art, which is convenient for dispensing tissue fixative and can be effective.
[0004] The technical solution adopted by the utility model is: an instrument for safely and quantitatively dispensing tissue fluid, comprising a reagent box, a dispensing platform is arranged on one side of the reagent box, a liquid pump is arranged in the dispensing platform, a liquid inlet of the liquid pump is connected to the bottom of the reagent box through a hose, a liquid outlet of the liquid pump is connected to a liquid outlet head through a hose, the liquid outlet head is fixedly installed on the upper part of one side of the dispensing platform, and a flow valve for controlling the amount of liquid discharged is installed at the liquid outlet head, an air suction port is also opened on the side of the dispensing platform where the liquid outlet head is installed, and the dispensing An air intake hood is sealably installed at the air intake port in the loading platform, the air intake hood is connected to a suction fan through a pipeline, the air outlet of the suction fan is connected to an activated carbon filter cartridge, the end of the activated carbon filter cartridge away from the air intake hood is connected to the air outlet pipe, the air outlet pipe extends out of the loading platform, the bottom of one side of the loading platform where the liquid outlet head is installed extends outward to form a base, and a sealing cover that cooperates with the base is hinged on the top, when the sealing cover is covered on the base, the sealing cover, the base and the side wall of the loading platform form a closed space, and the sealing cover is also provided with a one-way air inlet.
[0005] Preferably, a sealing seat with a concave cross-section is fixedly installed at the edge of the base and the edge of the dispensing table corresponding to the edge of the sealing cover, and a sealing strip corresponding to the sealing seat is fixedly installed at the edge of the sealing cover.
[0006] Preferably, an operating table is provided on the top of the filling station, and the operating table is used to control the liquid pump and the flow valve.
[0007] The beneficial effects of the utility model are as follows: the utility model utilizes a liquid extraction pump to extract the tissue fixative and controls the liquid extraction through a flow valve, thereby realizing quantitative liquid extraction and effectively preventing leakage during liquid extraction; at the same time, a sealing cover is separately arranged at the liquid outlet head, so that the tissue fixative can be packaged in a closed space, and the formaldehyde gas volatilized during the packaging can be sucked out and purified for discharge through the air suction port, thereby reducing the pollution of the tissue fixative to the working environment; finally, the instrument can be packaged next to the experiment, thereby reducing the environmental pollution to the laboratory caused by formaldehyde volatilization on the way from the fume hood to the experiment after packaging. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model;
[0009] Figure 2 It is a side schematic diagram of the utility model.
[0010] In the figure: 1. Reagent box; 2. Filling table; 3. Liquid pump; 4. Liquid outlet head; 5. Flow valve; 6. Air suction port; 7. Air inlet hood; 8. Activated carbon filter cartridge; 9. Air outlet pipe; 10. Base; 11. Sealing cover; 12. One-way air inlet; 13. Sealing seat; 14. Sealing strip. DETAILED DESCRIPTION
[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0012] Example
[0013] like Figure 1 and Figure 2As shown, the instrument for safe quantitative packaging of tissue fluid provided in this embodiment includes a reagent box 1 and a packaging platform 2 arranged side by side, a liquid pump 3 is provided in the packaging platform 2, the liquid inlet of the liquid pump 3 is connected to the bottom of the reagent box 1 through a hose, and the liquid outlet of the liquid pump 3 is connected to a liquid outlet head 4 through a hose, the liquid outlet head 4 is fixedly installed on an upper part of one side of the packaging platform 2, and a flow valve 5 for controlling the liquid outlet is installed at the liquid outlet head 4, a sealing cover 11 is hinged on the top of one side of the packaging platform 2 where the liquid outlet head 4 is installed, and the bottom of one side of the packaging platform 2 where the sealing cover 11 is installed extends outward to form a base 10, the base 10 matches the sealing cover 11, and a sealing seat 13 with a concave cross-section is fixedly installed on the edge of the base 10 corresponding to the edge of the sealing cover 11 and the edge of the packaging platform 2, the sealing A sealing strip 14 corresponding to the concave sealing seat 13 is installed on the edge of the sealing cover 11. When the sealing cover 11 is covered on the base 10, the sealing strip 14 is inserted into the sealing seat 13, so that the sealing cover 11, the base 10 and the side wall of the filling platform 2 enclose a closed space. The sealing cover 11 is also provided with a one-way air inlet 12. The side of the filling platform 2 where the liquid outlet head 4 is installed is also provided with an air suction port 6. An air intake hood 7 is sealed and installed at the air suction port 6 in the filling platform 2. The air intake hood 7 is connected to a suction fan through a pipeline. The air outlet of the suction fan is connected to an activated carbon filter cartridge 8. The end of the activated carbon filter cartridge 8 away from the air intake hood 7 is connected to an air outlet pipe 9, and the air outlet pipe 9 extends out of the filling platform 2; an operating table is provided on the top of the filling platform 2, and the operating table is used to control the liquid suction pump 3 and the flow valve 5.
[0014] When in use, place the sub-packaging container on the base 10 and below the liquid outlet 4, close the sealing cover 11, start the suction fan, and the suction fan will extract the gas in the sealing cover 11. In order to ensure the air pressure balance in the sealing cover 11, the outside air enters the sealing cover 11 through the one-way air inlet 12; open the liquid pump 3 and the flow valve 5, extract the tissue fixative from the reagent box 1 through the liquid pump 3, and control the sub-packaging amount through the flow valve 5. The formaldehyde gas volatilized during the sub-packaging process is sucked out from the air suction port 6 by the suction fan and sent to the activated carbon filter cartridge 8 for adsorption and purification, and then discharged from the air outlet pipe 9. After the sub-packaging is completed, open the sealing cover 11, fix the pathological tissue in the sub-packaging container, and then send it to the test cabinet. The utility model avoids the leakage of tissue fixative caused by dumping or pressing of traditional sub-packaging, and at the same time realizes quantitative liquid extraction, and adsorbs the volatilized formaldehyde gas during sub-packaging, which greatly reduces the pollution of formaldehyde volatilization in the tissue fixative to the laboratory environment.
[0015] The above is only a preferred implementation of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be included in the protection scope of the present invention.
Claims
1. An apparatus for safely and quantitatively dispensing tissue fluid, comprising a reagent box (1), characterized in that: A dispensing platform (2) is provided on one side of the reagent box (1), and a liquid pump (3) is provided inside the dispensing platform (2). The liquid inlet of the liquid pump (3) is connected to the bottom of the reagent box (1) through a hose, and the liquid outlet of the liquid pump (3) is connected to a liquid outlet head (4) through a hose. The liquid outlet head (4) is fixedly installed on the upper part of one side of the dispensing platform (2), and a flow valve (5) for controlling the liquid outlet amount is installed at the liquid outlet head (4). An air suction port (6) is also provided on the side of the dispensing platform (2) where the liquid outlet head (4) is installed. An air intake hood (7) is sealed and installed at the air intake port (6) in the dispensing platform (2), and the air intake hood (7) is connected to the liquid outlet head (4) through a hose. The pipeline is connected to a suction fan, the air outlet of the suction fan is connected to an activated carbon filter cartridge (8), one end of the activated carbon filter cartridge (8) away from the air inlet cover (7) is connected to an air outlet pipe (9), and the air outlet pipe (9) extends out of the dispensing platform (2). The bottom of one side of the dispensing platform (2) where the liquid outlet head (4) is installed extends outward to form a base (10), and a sealing cover (11) that cooperates with the base (10) is hinged on the top. When the sealing cover (11) is covered on the base (10), the sealing cover (11), the base (10) and the side wall of the dispensing platform (2) form a closed space, and the sealing cover (11) is also provided with a one-way air inlet (12).
2. The apparatus for safely and quantitatively dispensing tissue fluid according to claim 1, characterized in that: A sealing seat (13) having a concave cross-section is fixedly mounted on the edge of the base (10) and the edge of the dispensing platform (2) corresponding to the edge of the sealing cover (11), and a sealing strip (14) corresponding to the sealing seat (13) is fixedly mounted on the edge of the sealing cover (11).
3. An apparatus for safely and quantitatively dispensing tissue fluid according to claim 1 or 2, characterized in that: An operating table is provided on the top of the dispensing table (2), and the operating table is used to control the liquid extraction pump (3) and the flow valve (5).