A tissue dehydrator
By installing an electrostatic discharge device on the cylinder head of the tissue cylinder of the pathological dehydrator and connecting it to the grounding system, the problems of equipment malfunction and safety hazards caused by static electricity accumulation are solved, the safe discharge of static electricity is achieved, and the operational safety is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAKEWE SHENZHEN MEDICAL EQUIP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-16
AI Technical Summary
The tissue cylinder of a pathological dehydrator is at risk of static electricity buildup during operation, which may lead to equipment malfunction and safety accidents.
An electrostatic discharge device is installed on the cylinder cover of the tissue cylinder. The electrostatic discharge device is connected to the grounding system to form an electrostatic discharge channel. When the staff opens the cylinder cover, they first come into contact with the electrostatic discharge device, and the static charge on their hands is discharged through the electrostatic discharge device and the grounding system.
It effectively reduces the risk of static electricity accumulation and minimizes equipment malfunctions and electric shock hazards caused by static discharge.
Smart Images
Figure CN224365835U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and more specifically, to a tissue dehydrator. Background Technology
[0002] Tissue dehydrators are commonly used tissue processing equipment in pathology departments and research institutions. Their core function is to fix, dehydrate, clear, and impregnate diseased tissues with paraffin to provide high-quality samples for subsequent tissue embedding and staining. The tissue dehydrator contains tissue cylinders for holding tissue samples. A rotating cap is located at the cylinder opening, allowing the operator to place the tissue sample into the cylinder by opening the cap.
[0003] Pathological dehydrators operate in low-humidity environments, and the friction between the operator's skin and clothing can easily lead to static electricity buildup. While the machine itself has excellent grounding and its metal structure is a good conductor of static electricity, providing an efficient discharge path, the tissue cylinder, being the primary point of contact between the equipment and the operator, presents a potential risk of electrostatic discharge. When a person carrying a significant amount of static charge operates the machine, this charge can be discharged through the metal casing of the tissue cylinder. This process can cause malfunctions, and is especially dangerous when handling flammable reagents. Utility Model Content
[0004] The purpose of this application is to address the shortcomings of the prior art by providing a tissue dehydrator that can actively guide the static charge carried by the human body to the grounding system before the operator touches the tissue cylinder, thereby effectively reducing the risk of charge accumulation and reducing equipment failure and electric shock hazards caused by electrostatic discharge.
[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:
[0006] This application provides a tissue dehydrator, including: a machine body, a tissue cylinder inside the machine body, the tissue cylinder being used to place tissue samples for tissue sample processing; the tissue cylinder includes a cylinder body and a cylinder cover, the cylinder cover being closed to the cylinder opening of the cylinder body, the cylinder cover having a gripping area, the gripping area being used by an operator to open and close the cylinder cover by hand, and the gripping area having at least one surface having an electrostatic discharge element, the electrostatic discharge element being connected to a grounding system.
[0007] Optionally, the electrostatic discharge device is an electrostatic discharge sheet, the gripping area has a first surface and a first side surface connected to the first surface, the first side surface and the first surface have a preset angle, at least part of the first surface and the first side surface are covered by the electrostatic discharge sheet, and the electrostatic discharge sheet is connected to the grounding system.
[0008] Optionally, the electrostatic discharge sheet includes a first electrostatic discharge sheet and a second electrostatic discharge sheet, the first electrostatic discharge sheet covering a first surface and the second electrostatic discharge sheet covering a first side surface, and the first and second electrostatic discharge sheets being connected to a grounding system.
[0009] Optionally, the surface of the second electrostatic discharge sheet is at least partially curved or bent.
[0010] Optionally, the portion of the first surface or first side surface covered by the electrostatic discharge sheet is provided with a receiving groove, and the electrostatic discharge sheet is attached to the first surface or first side surface through the receiving groove.
[0011] Optionally, the included angle between the first electrostatic discharge plate and the second electrostatic discharge plate is less than or equal to 90°.
[0012] Optionally, a worktable is formed on the top of the machine body, and an opening is provided on the worktable to expose the cylinder port of the cylinder body. The cylinder head is rotatably connected to the cylinder body, and the gripping area is opposite to the rotation axis of the cylinder head.
[0013] Optionally, a sealing ring is provided on the inner side of the cylinder head, which is adapted to fit the inner wall of the cylinder port to seal the cylinder head and the cylinder port.
[0014] Optionally, the grounding system includes a resistive element and a conductive element electrically connected to the resistive element, an electrostatic discharge element electrically connected to the resistive element, and a conductive element electrically connected to the ground wire.
[0015] Optionally, the resistor is disposed on the cylinder head; or, the cylinder head has a detachable cavity in which the resistor is disposed.
[0016] The beneficial effects of this application include:
[0017] This application provides a tissue dehydrator, comprising: a machine body, with a tissue cylinder inside the machine body for placing tissue samples for processing; the tissue cylinder includes a cylinder body and a cylinder cover, the cylinder cover fitting over the opening of the cylinder body, and a gripping area on the cylinder cover for the operator to open and close the cylinder cover by hand; the gripping area has at least one surface equipped with an electrostatic discharge element connected to a grounding system. This tissue dehydrator has an electrostatic discharge element on the cylinder cover of the tissue cylinder, electrically connected to the grounding system, forming an electrostatic discharge channel. When the operator opens the cylinder cover, they first come into contact with the electrostatic discharge element, and the static charge on their hand is already discharged through the electrostatic discharge element and the grounding system, effectively reducing the risk of charge accumulation. Therefore, when the operator's hand further contacts the cylinder body, very little static charge is discharged through the metal outer shell of the cylinder body, thereby reducing equipment malfunctions and the risk of electric shock caused by electrostatic discharge. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the tissue dehydrator provided in the embodiments of this application;
[0020] Figure 2 This is a schematic diagram of the structure of the tissue cylinder and cylinder head in the tissue dehydrator provided in the embodiments of this application;
[0021] Figure 3 This is a partial structural diagram of the tissue cylinder and cylinder head in the tissue dehydrator provided in the embodiments of this application.
[0022] Icons: 10-Tissue dehydrator; 11-Machine body; 12-Tissue cylinder; 121-Cylinder body; 122-Mounting platform; 13-Cylinder cover; 131-First side; 132-Second receiving slot; 14-Electrostatic discharge component; 141-First electrostatic discharge sheet; 142-Second electrostatic discharge sheet; 15-Workbench. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] Please refer to Figure 1 and Figure 2 This application provides a tissue dehydrator 10, including: a machine body 11, and a tissue cylinder 12 disposed inside the machine body 11. The tissue cylinder 12 is used to place tissue samples for tissue sample processing. The tissue cylinder 12 includes a cylinder body 121 and a cylinder cover 13. The cylinder cover 13 covers the cylinder opening of the cylinder body 121. The cylinder cover 13 is provided with a gripping area for an operator to hold and open / close the cylinder cover 13. At least one surface of the gripping area is provided with an electrostatic discharge element 14, which is connected to a grounding system.
[0029] It should be noted that the cylinder head 13 is used to close the cylinder bore of the cylinder body 121. In this embodiment, the connection relationship between the cylinder head 13 and the cylinder body 121 is not limited, as long as the cylinder head 13 can move relative to the cylinder body 121 to expose or close the cylinder bore of the cylinder body 121. For example, the cylinder head 13 and the cylinder body 121 are rotatably connected, and the cylinder head 13 rotates clockwise or counterclockwise relative to the cylinder body 121 to expose or close the cylinder bore of the cylinder body 121. Alternatively, the cylinder head 13 and the cylinder body 121 are slidably connected, and the cylinder head 13 slides back and forth in a straight line relative to the cylinder body 121 to expose or close the cylinder bore of the cylinder body 121.
[0030] The cylinder head 13 is divided into gripping areas for operators to hold and open / close the cylinder head 13. Preferably, the position of the gripping area is adapted to the movement mode of the cylinder head 13, so that the operator can open or close the cylinder head 13 by holding the gripping area. For example, if one side of the cylinder head 13 is rotatably connected to the cylinder body 121, then the gripping area is preferably located on the opposite side of the cylinder head 13 for easy operator use. If the cylinder head 13 is slidably connected to the cylinder body 121, then the gripping area is preferably located near the operator.
[0031] At least one surface of the grip area is provided with an electrostatic discharge element 14. When the operator opens or closes the cylinder cover 13, their hand comes into contact with the electrostatic discharge element 14. The electrostatic discharge element 14 is made of conductive material and is a good conductor of static electricity. The electrostatic discharge element 14 is connected to the grounding system, forming a static discharge channel. When the operator's hand touches the electrostatic discharge element 14, the static charge is discharged through the electrostatic discharge element 14 and the grounding system, and will not be transmitted to the outer shell of the cylinder 121. Therefore, it will not cause abnormal equipment operation or safety accidents when in contact with flammable reagents.
[0032] It is understood that the electrostatic discharge element 14 can be completely disposed on the surface of the gripping area, or it can be partially disposed on the surface of the gripping area (the remaining part can be disposed inside the gripping area or in other areas on the cylinder head 13). The entire surface of the gripping area does not necessarily need to be provided with the electrostatic discharge element 14. If the gripping area is large enough, then the electrostatic discharge element 14 can be disposed only on a part of the surface of the gripping area, as long as it is ensured that the area in contact with the human hand has the electrostatic discharge element 14.
[0033] The gripping area can take many forms. It can be a section defined on the cylinder head 13 for the hand to grip and open, a handle specifically designed for the cylinder head 13, or simply a specific area on the handle for hand contact. The electrostatic discharge element 14 can also take many forms. For example, it can be an electrostatic discharge sheet disposed on the surface of the gripping area via a substrate, conductive and connected to a grounding system. Alternatively, it can be the entire handle or a specific area on the handle for hand contact, made of conductive material and connected to a grounding system to discharge static charge from the hand.
[0034] In this embodiment, the method of connecting the electrostatic discharge unit 14 to the grounding system is not limited, as long as the static discharge path does not pass through the cylinder 121. Optionally, the grounding system includes a resistive element and a conductive element electrically connected to the resistive element. The electrostatic discharge unit 14 is electrically connected to the resistive element, and the conductive element is electrically connected to the ground wire. Static electricity on the worker's hands is released through the electrostatic discharge unit 14, the resistive element, the conductive element, and the ground wire. The resistive element is used to regulate the current, thereby regulating the electrostatic discharge rate.
[0035] The resistor can be mounted on the cylinder head 13 for easy maintenance, or it can be mounted in other locations, as long as it is not pulled out when opening and closing the cylinder head 13. Optionally, the resistor can be mounted on the cylinder head 13, either inside or outside the cylinder head 13. Alternatively, the cylinder head 13 may have a removable cavity, and the resistor may be mounted inside the cavity. In this case, the resistor is located inside the cavity of the cylinder head 13 and is protected by the cylinder head 13. The removable cavity facilitates maintenance of the resistor.
[0036] The aforementioned tissue dehydrator 10 has an electrostatic discharge element 14 installed on the cylinder cover 13 of the tissue cylinder 12. The electrostatic discharge element 14 is electrically connected to the grounding system, forming a static discharge channel. When the operator opens the cylinder cover 13, they first come into contact with the electrostatic discharge element 14. The static charge on their hand is already discharged through the electrostatic discharge element 14 and the grounding system, effectively reducing the risk of charge accumulation. Therefore, when the operator's hand further contacts the cylinder body 121 of the tissue cylinder 12, very little static charge will be discharged through the metal outer shell of the cylinder body 121, thereby reducing equipment malfunctions and the risk of electric shock caused by electrostatic discharge.
[0037] Based on human hand grip habits, the thumb and other fingers are not on the same plane when gripping an object. To accommodate the usage habits of staff, make gripping more comfortable, and ensure effective dissipation of static charge on the thumb and other fingers, optionally, please refer to... Figure 2 and Figure 3 The electrostatic discharge component 14 is an electrostatic discharge sheet. The holding area has a first surface and a first side surface 131 connected to the first surface. The first side surface 131 and the first surface have a preset angle. At least a portion of the first surface and the first side surface 131 are covered by the electrostatic discharge sheet. The electrostatic discharge sheet is connected to the grounding system.
[0038] In this embodiment, the electrostatic discharge element 14 is specifically an electrostatic discharge sheet. The electrostatic discharge sheet has a large surface area and a small thickness, covering the gripping area without any obvious protrusion, and the worker can easily place their hand on the electrostatic discharge sheet. In other embodiments, the electrostatic discharge element 14 can also be in other forms, as long as it can discharge the static charge from the worker's hand.
[0039] The electrostatic discharge plate simultaneously covers at least a portion of the first surface and at least a portion of the first side surface 131. The first surface can be the upper or lower surface of the gripping area, and the first side surface 131 is preferably the front side of the gripping area, i.e., the side closest to the worker. A preset angle exists between the first surface and the first side surface 131, 0° < preset angle < 180°, meaning the first surface and the first side surface 131 are not coplanar. Consequently, the electrostatic discharge plate on the first surface is also not coplanar with the electrostatic discharge plate on the first side surface 131. Thus, when the worker holds the cylinder cover 13, the thumb can contact the electrostatic discharge plate on the first side surface 131, and the other fingers can contact the electrostatic discharge plate on the first surface, allowing the static charge on the worker's hand to be released.
[0040] It should be noted that the number of electrostatic discharge sheets can be one, which covers the first surface and the first side 131 by bending itself; the number of electrostatic discharge sheets can also be two or more, with some electrostatic discharge sheets arranged on the first surface and the rest arranged on the first side 131.
[0041] Optionally, the electrostatic discharge sheet includes a first electrostatic discharge sheet 141 and a second electrostatic discharge sheet 142. The first electrostatic discharge sheet 141 covers the first surface, and the second electrostatic discharge sheet 142 covers the first side 131. The first electrostatic discharge sheet 141 and the second electrostatic discharge sheet 142 are connected to the grounding system.
[0042] The electrical charge on each finger of the worker's hand can be released through the first electrostatic discharge plate 141 and the second electrostatic discharge plate 142, respectively. Providing independent electrostatic discharge plates on the first surface and the first side surface 131 facilitates their installation and processing. The first electrostatic discharge plate 141 and the second electrostatic discharge plate 142 are grounded respectively, preventing static electricity from failing to dissipate when the hand is only in contact with one of the discharge plates, as the discharge plate might not be grounded.
[0043] Optionally, the surface of the second electrostatic discharge plate 142 is at least partially curved or bent. This design is more ergonomic and makes it easier for operators to open the cylinder head 13.
[0044] Optionally, the included angle between the first electrostatic release plate 141 and the second electrostatic release plate 142 is less than or equal to 90°. In this case, the first electrostatic release plate 141 and the second electrostatic release plate 142 form an acute angle or right angle towards the worker's hand in the gripping area. This shape is similar to the shape of a human hand when gripping, thus making it easier for the worker to operate and preventing unstable gripping.
[0045] Optionally, the portion of the first surface or first side surface covered by the electrostatic discharge sheet is provided with a receiving groove, and the electrostatic discharge sheet is attached to the first surface or first side surface through the receiving groove.
[0046] Furthermore, the first surface of the gripping area is provided with a first receiving groove, the first electrostatic release sheet 141 is attached to the bottom of the first receiving groove, and the side of the first electrostatic release sheet 141 is adapted to the groove wall of the first receiving groove.
[0047] The first receiving groove provides a receiving space for the first electrostatic discharge plate 141 and also limits the position of the first electrostatic discharge plate 141, making the installation of the first electrostatic discharge plate 141 more convenient and reliable. For example, the first electrostatic discharge plate 141 is fixed to the bottom of the first receiving groove by bolts.
[0048] Furthermore, the first side 131 is provided with a second receiving groove 132, the second electrostatic discharge sheet 142 is attached to the bottom of the second receiving groove 132, and the side of the second electrostatic discharge sheet 142 is adapted to the groove wall of the second receiving groove 132.
[0049] The second receiving groove 132 provides a receiving space for the second electrostatic discharge plate 142 and also limits the movement of the second electrostatic discharge plate 142, making the installation of the second electrostatic discharge plate 142 more convenient and reliable. The second electrostatic discharge plate 142 can be fixed to the bottom of the second receiving groove 132 with bolts.
[0050] Optionally, please refer to again Figure 1 and Figure 2 The top of the machine body 11 forms a worktable 15, and the worktable 15 is provided with an opening to expose the cylinder port of the cylinder body 121. The cylinder cover 13 is rotatably connected to the cylinder body 121, and the gripping area is opposite to the rotation axis of the cylinder cover 13.
[0051] The cylinder body 121 of the tissue cylinder 12 is located in the upper area inside the machine body 11, and the cylinder opening of the cylinder body 121 is exposed from the worktable surface 15 on the top of the machine body 11, which makes it convenient for staff to pick up and put in tissue samples. One side of the cylinder cover 13 is rotatably connected to the cylinder body 121, and the opposite side is provided with a gripping area, which makes it convenient for staff to open and close the cylinder cover 13.
[0052] Optionally, the cylinder 12 also includes a mounting platform 122, which surrounds the top of the cylinder body 121 and exposes the cylinder opening. The cylinder head 13 is rotatably connected to the mounting platform 122. The mounting platform 122 increases the area of the top of the cylinder body 121 to facilitate the installation of the cylinder head 13 and the sealing of the cylinder opening.
[0053] Optionally, a sealing ring is provided on the inner side of the cylinder head 13, which is adapted to the inner wall of the cylinder port to seal the cylinder head and the cylinder port.
[0054] Furthermore, the cylinder head 13 has an annular sealing groove on its side, which surrounds the cylinder head 13. A sealing ring is embedded in the annular sealing groove, which also surrounds the cylinder head 13, with a portion of the sealing ring protruding from the annular sealing groove. The sealing ring is fitted to the inner wall of the cylinder bore to seal the cylinder head 13 with the cylinder bore.
[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tissue dehydrator, characterized in that, include: The machine body contains a tissue cylinder for placing tissue samples for processing. The tissue cylinder includes a cylinder body and a cylinder cover. The cylinder cover is fitted onto the cylinder opening of the cylinder body. The cylinder cover is provided with a gripping area for an operator to open and close the cylinder cover by hand. At least one surface of the gripping area is provided with an electrostatic discharge element, which is connected to a grounding system.
2. The tissue dehydrator as described in claim 1, characterized in that, The electrostatic discharge device is an electrostatic discharge sheet. The gripping area has a first surface and a first side surface connected to the first surface. The first side surface and the first surface have a preset angle. At least a portion of the first surface and the first side surface are covered by the electrostatic discharge sheet. The electrostatic discharge sheet is connected to the grounding system.
3. The tissue dehydrator as described in claim 2, characterized in that, The electrostatic discharge plate includes a first electrostatic discharge plate and a second electrostatic discharge plate. The first electrostatic discharge plate covers the first surface, and the second electrostatic discharge plate covers the first side. The first electrostatic discharge plate and the second electrostatic discharge plate are connected to the grounding system.
4. The tissue dehydrator as described in claim 3, characterized in that, The surface of the second electrostatic discharge sheet is at least partially curved or bent.
5. The tissue dehydrator as described in claim 3, characterized in that, The portion of the first surface or first side surface covered by the electrostatic discharge sheet is provided with a receiving groove, and the electrostatic discharge sheet is attached to the first surface or first side surface through the receiving groove.
6. The tissue dehydrator as described in claim 3, characterized in that, The angle between the first electrostatic discharge plate and the second electrostatic discharge plate is less than or equal to 90°.
7. The tissue dehydrator as described in claim 1, characterized in that, The top of the machine body forms a worktable, and the worktable has an opening to expose the cylinder head of the cylinder body. The cylinder head is rotatably connected to the cylinder body, and the gripping area is opposite to the rotation axis of the cylinder head.
8. The tissue dehydrator as described in claim 7, characterized in that, The cylinder head is provided with a sealing ring on its inner side, which is adapted to the inner wall of the cylinder port to seal the cylinder head and the cylinder port.
9. The tissue dehydrator as described in claim 1, characterized in that, The grounding system includes a resistive element and a conductive element electrically connected to the resistive element. The electrostatic discharge element is electrically connected to the resistive element, and the conductive element is electrically connected to the ground wire.
10. The tissue dehydrator as described in claim 9, characterized in that, The resistor is disposed on the cylinder head; or, the cylinder head has a detachable cavity, and the resistor is disposed inside the detachable cavity.