Precise rotating cover assembly suitable for fixing tissue sample

Abstract

The utility model relates to the field of rotary covers, and discloses a precise rotary cover assembly suitable for fixing a tissue sample, the precise rotary cover assembly comprises a sample container used for placing the tissue sample and a rotary cover used for sealing the sample container, the rotary cover is in threaded connection with the sample container, and a supporting plate is slidably arranged in the rotary cover; a sealing gasket is fixedly arranged at the bottom of the supporting plate; the supporting plate is arranged in the rotating cover, the sealing gasket is arranged at the bottom of the supporting plate, the sealing gasket is tightly attached to the container opening of the sample container, and the gap exists between the supporting plate and the top end of the inner wall of the rotating cover; under the cooperation of the reset part and the guide part, the sealing gasket is accurately reset and sealed again, an effective sealing barrier is formed, leakage of stationary liquid in the ventilation process is reduced through the accurate reset and sealing mechanism, waste of the stationary liquid is reduced, and then it is beneficial to keep the tissue sample fixed evenly and stably.

Description

Technical Field

[0001] This application relates to the field of rotary caps, and in particular to a precision rotary cap assembly suitable for tissue sample fixation. Background Art

[0002] Tissue sample fixation refers to the process of placing a fresh tissue specimen taken from a living organism in a specific chemical reagent, namely a tissue sample fixative, in histological, pathological research or clinical diagnosis, in order to achieve purposes such as preserving tissue structure, preventing autolysis, maintaining antigenicity and molecular integrity;

[0003] The main purpose of a tissue sample fixative is to terminate cell activity and stabilize tissue structure. However, in the initial stage of fixation, especially when the tissue is large or the cell activity is strong, there is still a small amount of metabolic activity occurring, generating gas. Air that may be present inside the tissue sample or gas such as carbon dioxide produced by tissue metabolism, if not released, will form bubbles during the fixation process. This will interfere with the uniform fixation of the tissue and leave voids or deformed areas in the final tissue section, affecting the quality of histological analysis. Therefore, in the initial stage of fixing tissue samples, it is necessary to make the sealed tissue sample container breathable to release the excess gas;

[0004] When the existing tissue sample containers need to be breathable after being precisely sealed by a rotary cap, a component for breathable by pressing is provided at the top of the rotary cap. Breathing by pressing can respond immediately and quickly release the gas inside the tissue sample container. However, there is a risk of accidental touch. When pressing, the volume of the gas inside the sealed tissue sample container will be compressed and reduced, resulting in an increase in pressure. When releasing the pressure, the fixative will be discharged together with the gas, not only causing waste of the fixative, but also the loss of the fixative will lead to insufficient contact between the sample and the fixative, and it cannot fully penetrate the tissue, thus affecting the fixation effect. To solve the above problems, a precision rotary cap assembly suitable for tissue sample fixation is proposed.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0006] To solve the problem of the rotary cap, this application provides a precision rotary cap assembly suitable for tissue sample fixation.

[0007] A precision rotary cap assembly suitable for tissue sample fixation provided by this application adopts the following technical solutions:

[0008] A precision rotary cap assembly suitable for fixing tissue samples, comprising a sample container for placing tissue samples and a rotary cap for sealing the sample container. The rotary cap is threadedly connected to the sample container. A support plate is slidably arranged inside the rotary cap. A sealing gasket is fixedly arranged at the bottom of the support plate. The sealing gasket is closely attached to the container opening of the sample container. There is a gap between the top end of the inner wall of the support plate and the rotary cap. When the support plate slides close to the top end of the inner wall of the rotary cap, there is a gap between the sealing gasket and the container opening of the sample container. A reset member for resetting the sealing gasket and a guiding member for the sealing gasket during reset are also arranged between the support plate and the inner wall of the rotary cap.

[0009] Preferably, the reset member is a spring;

[0010] A through hole for a pull rod to pass through is formed on the rotary cap. The bottom of the pull rod is fixed to the support plate. A pull block is arranged at the top of the pull rod. The spring is sleeved on the pull rod. Two ends of the spring respectively abut against the top end of the inner wall of the rotary cap and the support plate.

[0011] Preferably, protrusions are arranged on the outside of the pull block.

[0012] Preferably, the bottom of the support plate is arc-shaped.

[0013] Preferably, the guiding member is a telescopic rod. The telescopic rod is located on the support plate. The telescopic end of the telescopic rod is connected to the top end of the inner wall of the rotary cap.

[0014] Preferably, internal threads are arranged inside the rotary cap, and external threads are arranged on the sample container. The rotary cap and the sample container are threadedly connected through the cooperation of the internal threads and the external threads.

[0015] In summary, compared with the related technology, the utility model has the following beneficial effects:

[0016] By arranging a support plate inside the rotary cap and a sealing gasket at the bottom of the support plate, when the rotary cap is threadedly connected to the sample container, the sealing gasket is closely attached to the container opening of the sample container. There is a gap between the top end of the inner wall of the support plate and the rotary cap. When the support plate approaches the top end of the inner wall of the rotary cap, there is a gap between the sealing gasket and the container opening of the sample container. A reset member for resetting the sealing gasket and a guiding member for the sealing gasket during reset are also arranged between the support plate and the inner wall of the rotary cap. Compared with the related technology, when the support plate, i.e., the sealing gasket on it, approaches the top end of the inner wall of the rotary cap to complete ventilation, the precise reset of the sealing gasket is realized under the cooperation of the reset member and the guiding member to re-seal again, forming an effective sealing barrier. The precise reset and sealing mechanism reduce the leakage of the fixing liquid during the ventilation process, reduce the waste of the fixing liquid, and thus are beneficial to maintaining the uniformity and stability of the tissue sample fixation. Description of the Drawings

[0017] Figure 1 It is a schematic side-sectional view of the sealed state of the application embodiment;

[0018] Figure 2 It is a schematic view of the breathable state structure of the application embodiment;

[0019] Figure 3 is Figure 2 The enlarged structure schematic diagram at position A in

[0020] Figure 4 It is a schematic view of the overall structure of the application embodiment.

[0021] Explanation of reference numerals: 101, sample container; 1, rotating cover; 2, sealing gasket; 3, support plate; 4, telescopic rod; 5, spring; 6, pull rod; 7, pull block. Specific implementation manners

[0022] The following will Figures 1-4 make a further detailed description of this application in conjunction with the appended

[0023] The embodiment of this application discloses a precision rotating cover assembly applicable to tissue sample fixation. Referring to Figures 1-4 , a precision rotating cover assembly applicable to tissue sample fixation includes a sample container 101 for placing tissue samples and a rotating cover 1 for sealing the sample container 101. The rotating cover 1 is threadedly connected to the sample container 101. A support plate 3 is slidably arranged inside the rotating cover 1. A sealing gasket 2 is fixedly arranged at the bottom of the support plate 3. The sealing gasket 2 is in close fit with the container opening of the sample container 101. There is a gap between the support plate 3 and the top end of the inner wall of the rotating cover 1. When the support plate 3 slides close to the top end of the inner wall of the rotating cover 1, there is a gap between the sealing gasket 2 and the container opening of the sample container 101. A reset member for resetting the sealing gasket 2 and a guiding member for the reset of the sealing gasket 2 are further arranged between the support plate 3 and the inner wall of the rotating cover 1;

[0024] By adopting the above technical solution, the rotating cover 1 is screwed tightly with the sample container 101 containing tissue samples, that is, the fixing solution. At this time, the sealing gasket 2 is in close fit with the container opening of the sample container 101 to achieve the sealing of the sample container 101. When ventilation is required, the support plate 3 and the sealing gasket 2 thereon are made to slide close to the top end of the inner wall of the rotating cover 1. At this time, the reset member contracts, and there is a ventilation gap between the sealing gasket 2 and the container opening of the sample container 101. After ventilation is completed, the reset member makes the sealing gasket accurately reset under the action of the guiding member to seal the sample container 101 again, forming an effective sealing barrier.

[0025] Referring to Figures 1-3 , the reset member is a spring 5;

[0026] The rotating cover 1 is provided with a through hole for the pull rod 6 to pass through. The bottom of the pull rod 6 is fixed to the support plate 3. The top of the pull rod 6 is provided with a pull block 7. The spring 5 is sleeved on the pull rod 6, and the two ends of the spring 5 respectively abut against the inner wall top of the rotating cover 1 and the support plate 3.

[0027] By adopting the above technical solution, when ventilation is required, the pull block 7 is pulled to drive the pull rod 6, the support plate 3 fixed thereto and the gasket 2 to approach the inner wall top of the rotating cover 1. At this time, the spring 5 is stressed and contracts. After the ventilation is completed, the pull block 7 is released, and the gasket 2 returns to its original position by means of the restoring force of the spring 5, maintaining good sealing performance.

[0028] Refer to Figure 3 , a protrusion is provided outside the pull block 7.

[0029] By adopting the above technical solution, the protrusion serves as an anti-slip function.

[0030] Refer to Figure 2 , the bottom of the support plate 3 is arc-shaped.

[0031] By adopting the above technical solution, the bottom of the support plate 3 is arc-shaped. When the gasket 2 is deformed under force to seal the container opening of the sample container 101, it can better fit the container opening of the sample container 101 under the guidance of the arc-shaped bottom, forming a tight seal.

[0032] Refer to Figure 2 , the guiding member is a telescopic rod 4. The telescopic rod 4 is located on the support plate 3, and the telescopic end of the telescopic rod 4 is connected to the inner wall top of the rotating cover 1.

[0033] By adopting the above technical solution, the telescopic rod 4 plays a guiding role, enabling the gasket 2 to be stretched vertically along the axis direction of the pull rod 6 during ventilation. After release, with the help of the restoring force of the spring 5, the gasket 2 can accurately return to its original position, maintaining good sealing performance.

[0034] Refer to Figure 1 , internal threads are provided inside the rotating cover 1, external threads are provided on the sample container 101, and the rotating cover 1 and the sample container 101 are threadedly connected through the cooperation of the internal threads and the external threads.

[0035] By adopting the above technical solution, the sample container 101 and the rotating cover 1 are precisely connected through the cooperation of the internal threads and the external threads.

[0036] The implementation principle of a precision rotary cap assembly applicable to tissue sample fixation in an embodiment of the present application is as follows: during use, the rotary cap 1 is screwed tightly onto the sample container 101 in a threaded manner. At this time, the sealing gasket 2 is in close contact with the container opening of the sample container 101. When ventilation is required, the pull block 7 is pulled to make the sealing gasket 2 approach the top inner wall of the rotary cap 1 in a direction perpendicular to the axis of the pull rod 6. At this time, the spring 5 is stressed and contracts. After ventilation is completed, the pull block 7 is released, and the sealing gasket 2, with the help of the restoring force of the spring 5 and under the guiding action of the telescopic rod 4, accurately returns to its original position, maintaining good sealing performance and preventing the leakage of the fixing liquid.

[0037] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0038] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0039] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0040] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A precision rotary cap assembly applicable to the fixation of tissue samples, comprising a sample container (101) for placing tissue samples and a rotary cap (1) for sealing the sample container (101), characterized in that: The rotary cap (1) is threadedly connected to the sample container (101). A support plate (3) is slidably arranged inside the rotary cap (1). A sealing gasket (2) is fixedly arranged at the bottom of the support plate (3). The sealing gasket (2) is in close fit with the container opening of the sample container (101). There is a gap between the top end of the inner wall of the support plate (3) and the rotary cap (1). When the support plate (3) slides close to the top end of the inner wall of the rotary cap (1), there is a gap between the sealing gasket (2) and the container opening of the sample container (101). A reset member for resetting the sealing gasket (2) and a guiding member for the reset of the sealing gasket (2) are further arranged between the support plate (3) and the inner wall of the rotary cap (1).

2. The precision rotary cap assembly applicable to tissue sample fixation according to claim 1, wherein: The reset member is a spring (5); A through hole for the pull rod (6) to pass through is formed in the rotary cap (1). The bottom of the pull rod (6) is fixed to the support plate (3). A pull block (7) is arranged at the top of the pull rod (6). The spring (5) is sleeved on the pull rod (6). The two ends of the spring (5) are respectively abutted against the top end of the inner wall of the rotary cap (1) and the support plate (3).

3. The precision rotary cap assembly applicable to tissue sample fixation according to claim 2, characterized in that: Protrusions are arranged outside the pull block (7).

4. The precision rotary cap assembly applicable to tissue sample fixation according to claim 1, wherein: The bottom of the support plate (3) is arc-shaped.

5. A precision rotary cap assembly suitable for tissue sample fixation according to claim 1, characterized in that: The guiding member is a telescopic rod (4). The telescopic rod (4) is arranged on the support plate (3). The telescopic end of the telescopic rod (4) is connected to the top end of the inner wall of the rotary cap (1).

6. The precision rotary cap assembly applicable to tissue sample fixation according to claim 1, characterized in that: Internal threads are arranged inside the rotary cap (1). External threads are arranged on the sample container (101). The rotary cap (1) and the sample container (101) are threadedly connected through the cooperation of the internal threads and the external threads.

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