Toggle blade ejector and slicing apparatus using same

Abstract

A toggle blade ejector (100), which is provided on a slicing apparatus. The slicing apparatus comprises a blade clamping mechanism (200) used for clamping a blade. The toggle blade ejector comprises a toggle assembly (10) which is rotatably disposed. When rotating in a direction towards the blade clamping mechanism, one end of the toggle assembly can push out a blade clamped by the blade clamping mechanism. By using the toggle assembly for pushing out the blade clamped by the blade clamping mechanism, the process of blade replacement is simplified, and the visual field of the operator is not affected in the process of blade replacement. Also disclosed is a slicing apparatus using the toggle blade ejector.

Description

A toggle-type knife retractor and slicing device using the same

[0001] This application is based on the Chinese patent application with application number 202311837291.5 and application date December 28, 2023, and claims its priority. The entire content of the application is hereby introduced as a whole into this application. Technical Field

[0002] The present application relates to the technical field of medical equipment, and in particular to a toggle-type knife retractor and a slicing device using the same. Background Art

[0003] Sharp blades are essential for preparing pathology specimen sections to ensure the smoothness of the edges. However, in practice, the slicing apparatus frequently produces a large number of specimen sections, leading to frequent wear and dulling of the blade edges. Consequently, blades must be regularly replaced. However, due to the sharpness of the blades, operators are prone to injury when replacing them, especially without the proper tools.

[0004] Common slicing devices currently on the market typically integrate a blade ejector and a blade guard. The blade ejector assists the operator in ejecting the blade, while the blade guard covers the blade to prevent injury. Furthermore, the blade ejector and blade guard are typically integrated into one unit. This design requires the operator to move both the blade ejector and blade guard together to the blade to protect the operator from being cut. Because the blade guard obstructs the operator's field of vision, it is difficult for the operator to accurately observe the blade's position and status during blade replacement, compromising the ease and safety of operation (as described in existing patent CN201720727880). Therefore, there is an increasing need for a blade ejector design that ensures operational safety while maintaining the operator's field of vision. Application Contents

[0005] The purpose of this application is to provide a toggle-type blade retractor and a slicing device using the same, aiming to solve the problem in the prior art that the blade retractor affects the operator's field of vision during use.

[0006] An embodiment of the present application provides a toggle-type blade ejector, which is arranged on a slicing device. The slicing device includes a blade clamping mechanism for clamping a blade. The toggle-type blade ejector includes a rotatable toggle component. When one end of the toggle component is rotated toward the blade clamping mechanism, the blade clamped by the blade clamping mechanism can be pushed out.

[0007] Furthermore, the toggle assembly includes a support member and a toggle member rotatable relative to the support member, and the support member is connected to the blade clamping mechanism.

[0008] Furthermore, an elastic reset member is provided between the toggle member and the support member, one end of the elastic reset member abuts against the support member, and the other end abuts against the toggle member.

[0009] Furthermore, the toggle member includes a toggle handle and a toggle body, one end of the toggle body is rotatably connected to the support member, and the other end of the toggle body can push out the blade clamped by the blade clamping mechanism, and the toggle handle is connected to the toggle body.

[0010] Furthermore, a circular arc surface is provided on the other end of the shifting body facing the blade clamping mechanism.

[0011] Furthermore, one end of the support member is rotatably connected to the blade clamping mechanism, and the other end of the support member is rotatably connected to the toggle member.

[0012] Furthermore, the rotation axis between one end of the support member and the blade clamping mechanism is in a horizontal direction, and the rotation axis between the other end of the support member and the toggle member is in a vertical direction.

[0013] Furthermore, one end of the support member is directly and rotatably connected to the blade clamping mechanism; or, the toggle-type blade retractor also includes a base, which is arranged on the side of the blade clamping mechanism, and the support member is rotatably connected to the base.

[0014] Furthermore, a protrusion is upwardly provided on the top of the base, and one end of the support member is rotatably connected to the protrusion via a horizontally provided first rotating shaft, and one end of the support member can rotate around the first rotating shaft.

[0015] An embodiment of the present application further provides a slicing device, comprising a blade clamping mechanism and the toggle-type blade retractor as described above.

[0016] The present application provides a toggle-type blade ejector and a slicing device using the same. The toggle-type blade ejector is disposed on the slicing device, which includes a blade clamping mechanism for clamping a blade. The toggle-type blade ejector includes a rotatable toggle assembly. When one end of the toggle assembly is rotated toward the blade clamping mechanism, the toggle assembly can eject the blade clamped by the blade clamping mechanism. The present application utilizes the toggle assembly to eject the blade clamped by the blade clamping mechanism, simplifying the blade replacement process and ensuring that the operator's field of view is not affected during blade replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] FIG1 is a structural schematic diagram of a toggle-type blade retractor provided in an embodiment of the present application;

[0019] FIG2 is a second structural diagram of a toggle-type blade retractor provided in an embodiment of the present application;

[0020] FIG3 is an exploded view of a toggle-type blade retractor provided in an embodiment of the present application;

[0021] FIG4 is a schematic diagram of the operation of the toggle assembly provided in an embodiment of the present application;

[0022] FIG5 is a first structural diagram of a slicing device provided in an embodiment of the present application;

[0023] FIG6 is a second structural diagram of a slicing device provided in an embodiment of the present application;

[0024] FIG7 is a third structural diagram of a slicing device provided in an embodiment of the present application;

[0025] FIG8 is a fourth structural diagram of a slicing device provided in an embodiment of the present application.

[0026] Description of the symbols in the figure:

[0027] 10. Toggle assembly; 11. Toggle member; 111. Toggle handle; 1111. Raised edge; 112. Toggle body; 1121. Arc surface; 12. Support member; 121. First connecting section; 122. Second connecting section; 123. Third connecting section; 13. First rotating shaft; 14. Second rotating shaft;

[0028] 20. Elastic reset member;

[0029] 30. base; 31. protrusion;

[0030] 100. Toggle-type blade retractor; 200. Blade clamping mechanism. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0033] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] In combination with Figures 1, 2 and 5, an embodiment of the present application provides a toggle-type blade retractor 100, which is arranged on a slicing device. The slicing device includes a blade clamping mechanism 200 for clamping a blade. The toggle-type blade retractor 100 includes a rotatable toggle assembly 10. When one end of the toggle assembly 10 is rotated toward the blade clamping mechanism 200, the blade clamped by the blade clamping mechanism 200 can be pushed out.

[0036] In this embodiment, the operator applies force to the toggle assembly 10, causing it to rotate, causing one end of the toggle assembly 10 to rotate toward the blade clamping mechanism 200. The toggle assembly 10 then contacts and gradually pushes the blade clamped in the blade clamping mechanism 200. Because the toggle assembly 10 acts on the blade, its rotation pushes the clamped blade along a predetermined path. This process eliminates the need for the operator to directly contact the sharp blade, thereby improving the safety of the blade replacement process.

[0037] As shown in FIG. 3 , in one embodiment, the toggle assembly 10 includes a support member 12 and a toggle member 11 rotatable relative to the support member 12 , and the support member 12 is connected to the blade clamping mechanism 200 .

[0038] In this embodiment, the support member 12 supports the toggle member 11, and the toggle member 11 can rotate on the support member 12, thereby pushing the blade on the blade clamping mechanism 200. The support member 12 is arranged as close to the blade as possible to facilitate the toggle member 11 to push the blade.

[0039] In one embodiment, an elastic return member 20 is disposed between the toggle member 11 and the support member 12 . One end of the elastic return member 20 abuts against the support member 12 , and the other end abuts against the toggle member 11 .

[0040] In this embodiment, the support member 12 includes a second connecting segment 122 and a first connecting segment 121 and a third connecting segment 123 that are perpendicularly connected to the two ends of the second connecting segment 122 in different directions. The first connecting segment 121 is rotatably connected to the blade clamping mechanism 200, and the third connecting segment 123 is rotatably connected to the toggle member 11. The first connecting segment 121 is rotatably connected to the blade clamping mechanism 200, allowing the first connecting segment 121 to rotate around the blade clamping mechanism 200, thereby serving as the basis for the movement of the entire support member 12. When the first connecting segment 121 rotates, it can drive the second connecting segment 122 and the third connecting segment 123 to move together. The first connecting segment 121, the second connecting segment 122, and the third connecting segment 123 are vertically connected in sequence to form the overall structure of the support member 12. The third connecting segment 123 is rotatably connected to the toggle member 11, allowing the toggle member 11 to move closer to or away from the blade by rotation.

[0041] Furthermore, a second rotation axis 14 can be disposed between the toggle member 11 and the third connecting section 123. The elastic return member 20 can rotate about the second rotation axis 14, allowing the toggle member 11 to have both a retracted and an extended state. When the operator uses the toggle member 11 to push or remove the blade, the toggle member 11 rotates about the second rotation axis 14, allowing the toggle member 11 to contact and push the blade at an appropriate angle (in this case, the toggle member 11 is in the extended state). After the toggle operation is completed, the elastic force of the elastic return member 20 causes the toggle member 11 to return to its initial position about the second rotation axis 14 (in this case, the toggle member 11 is in the retracted state).

[0042] In addition, a receiving groove is provided on the third connecting section 123, and the elastic reset member 20 is located in the receiving groove. The receiving groove is provided corresponding to the second rotating shaft 14, that is, a rotating shaft hole is provided on the third connecting section 123, and the receiving groove is provided on the side of the rotating shaft hole facing the toggle member 11. When the toggle member 11 is used by the operator to push the blade, the elastic reset member 20 will be compressed according to its physical properties; after completing the pushing operation, the elastic reset member 20 will automatically return to its initial state by utilizing its own elastic restoring force, and this reset action will drive the toggle member 11 to return to its initial position. The provision of the elastic reset member 20 simplifies the operation process of the knife retractor, and the operator does not need to manually restore the toggle member 11 to its original position. The elastic reset member 20 can be a torsion spring or other forms of spring.

[0043] In one embodiment, the toggle member 11 includes a toggle handle 111 and a toggle body 112. One end of the toggle body 112 is rotatably connected to the support member 12, and the other end of the toggle body 112 can push out the blade clamped by the blade clamping mechanism 200. The toggle handle 111 is connected to the toggle body 112.

[0044] In this embodiment, one end of the toggle body 112 is rotatably connected to the support member 12 via a second rotating shaft 14, allowing the toggle body 112 to rotate about the second rotating shaft 14. The other end of the toggle body 112 is used to contact and push the blade clamped in the blade clamping mechanism 200. The toggle handle 111 is connected to the side of the toggle body 112 away from the blade clamping mechanism 200. The provision of the toggle handle 111 allows the operator to easily operate the toggle member 11 without getting too close to the blade. When the blade needs to be replaced or removed, the operator operates the toggle member 11 by turning the toggle handle 111, which drives the toggle body 112 to rotate about the second rotating shaft 14. The toggle handle 111 is at a safe distance from the blade, preventing the operator from directly contacting the sharp blade when pushing it.

[0045] Furthermore, as shown in FIG4 , a ridge 1111 can be provided on the end of the toggle handle 111 away from the toggle body 112. This ridge 1111 provides additional positioning when the operator is operating the toggle handle 111, particularly in slippery conditions or when wearing gloves. Because the toggle member 11 has an automatic return function, the ridge 1111 can be provided only on one side of the toggle handle 111, specifically the side in the direction of toggle movement. It automatically returns to its original position after toggle movement is complete, eliminating the need to operate the other side. Other structural designs can also be employed, such as providing anti-slip grooves or other structures on the outer wall of the toggle handle 111 to facilitate operation.

[0046] In one embodiment, a circular arc surface 1121 is provided on the other end of the shifting body 112 facing the blade clamping mechanism 200 .

[0047] In this embodiment, the arcuate surface 1121 is located at one end of the toggle body 112, which faces the blade clamping mechanism 200. This arcuate shape facilitates smooth contact and propulsion of the blade, reducing the risk of blade damage during operation. When the toggle member 11 is operated, the arcuate surface 1121 contacts the blade clamped in the blade clamping mechanism 200. Continued operation of the toggle member 11 causes the arcuate surface 1121 to slide along the edge of the blade, pushing the blade out of the blade clamping mechanism 200 a certain distance (as indicated by the X in FIG. 4 ).

[0048] In one embodiment, one end of the support member 12 is rotatably connected to the blade clamping mechanism 200 , and the other end of the support member 12 is rotatably connected to the toggle member 11 .

[0049] In this embodiment, one end of the support member 12 is rotatably connected to the blade clamping mechanism 200 and usually performs rotational motion; the other end of the support member 12 is rotatably connected to the toggle member 11 through the second rotating shaft 14, that is, the toggle member 11 rotates around the second rotating shaft 14.

[0050] In one embodiment, the rotation axis between one end of the support member 12 and the blade clamping mechanism 200 is in a horizontal direction, and the rotation axis between the other end of the support member 12 and the toggle member 11 is in a vertical direction.

[0051] In this embodiment, the support member 12 rotates around its rotation axis. This axis is the central axis connecting the support member 12 and the blade clamping mechanism 200, which determines the direction of rotation of the support member 12. The toggle member 11 also rotates around its own rotation axis. This axis is the key for the toggle member 11 to realize its blade retraction function, which determines the direction in which the toggle member 11 pushes the blade. The rotation axis of the support member 12 and the rotation axis of the toggle member 11 can be set vertically, that is, the rotation direction and the action surface of the two are perpendicular to each other, so as to realize the position adjustment of the toggle member 11 in the three-dimensional direction, which can more conveniently adjust the position of the toggle member 11, and also can more conveniently accommodate the toggle member 11, thereby improving the compactness of the entire mechanism and making full use of the space on the side of the blade clamping mechanism 200.

[0052] Furthermore, the support member 12 rotates around its horizontal rotation axis, which is the axis connecting the support member 12 and the blade clamping mechanism 200. The horizontal rotation axis allows the support member 12 to rotate in a vertical plane perpendicular to the horizontal rotation axis to achieve expansion or storage. The toggle member 11 rotates or swings around its vertical rotation axis, and the vertical rotation axis allows the toggle member 11 to rotate in a horizontal plane perpendicular to the vertical rotation axis. When the support member 12 rotates to the expanded state, the toggle member 11 can push the blade in the side blade clamping mechanism 200 in the horizontal direction. A blade pushing groove can be provided in the blade clamping mechanism 200, and the blade can be pushed out along the blade pushing groove by the toggle member 11.

[0053] As shown in Figures 5 and 6, in one embodiment, one end of the support member 12 is directly and rotatably connected to the blade clamping mechanism 200; alternatively, in combination with Figures 1, 2, 3, 7 and 8, the toggle-type blade retractor 100 further includes a base 30, which is disposed on the side of the blade clamping mechanism 200, and the support member 12 is rotatably connected to the base 30.

[0054] In this embodiment, the support member 12 can also be connected to the base 30. The base 30 is positioned to the side of the blade clamping mechanism 200, leaving ample operating space for the support member 12 and the toggle member 11. The support member 12 is rotatably connected to the base 30, allowing the support member 12 to rotate on the base 30. One end of the toggle member 11 is rotatably connected to the support member 12, enabling the toggle member 11 to rotate on the support 12 to push the blade. The support member 12 has two states: a stowed state and an extended state. In the stowed state, the support member 12 is close to the base 30 (i.e., the support member 12 is stowed toward the base 30, as shown in FIG2 ), maintaining a compact form for the toggle blade retractor 100, reducing space usage and ensuring normal specimen sectioning operations. In the extended state, the support member 12 is away from the base 30 (i.e., the support member 12 is extended away from the base 30 and toward the blade clamping mechanism 200, as shown in FIG1 ).

[0055] Specifically, when the blade needs to be replaced, the operator first converts the support member 12 from the stored state to the unfolded state; then, the operator manipulates the toggle member 11 so that the toggle member 11 applies a pushing force to the blade clamped in the blade clamping mechanism 200; through this pushing, the blade is safely and effectively pushed out of the blade clamping mechanism 200.

[0056] In one embodiment, a protrusion 31 is upwardly provided on the top of the base 30 , and one end of the support member 12 is rotatably connected to the protrusion 31 via a horizontally provided first rotating shaft 13 , and one end of the support member 12 can rotate around the first rotating shaft 13 .

[0057] In this embodiment, a protrusion 31 is designed upward at the top of the base 30. The protrusion 31 provides a connection point for mounting the first connecting section 121. The first connecting section 121 is rotatably connected to the protrusion 31 via a horizontally arranged first rotating shaft 13. The first connecting section 121 can rotate around the first rotating shaft 13 without separating from the base 30. The top of the base 30 is designed with sufficient rotation space on the side of the protrusion 31. The first connecting section 121 is rotatably connected to the protrusion 31 within this rotation space, allowing the first connecting section 121 to rotate within a certain range around the first rotating shaft 13. When the operator manipulates the first connecting section 121, the first connecting section 121 rotates around the first rotating shaft 13, and the rotation action always occurs within the rotation space at the top of the base 30.

[0058] In a more specific embodiment, the rotation space allows the first connecting section 121 to rotate on the side away from the blade clamping mechanism 200. When the first connecting section 121 rotates toward the side away from the blade clamping mechanism 200 to the limit position, it cannot continue to rotate. At this time, the support member 12 is in the storage state. The limit position can be a pre-designed position where the support member 12 and the base 30 are against each other on one side. When the first connecting section 121 rotates toward the side close to the blade clamping mechanism 200 until the third connecting section 123 is in a horizontal plane, the support member 12 is in the expanded state. Similarly, in the expanded state, a limit position can also be pre-designed, such as a position where the support member 12 and the base 30 are against each other on the other side, so as to facilitate positioning by the operator and reduce adjustment time. Regarding the design of the limit structure, a limit block, a limit column or other limit design can be used.

[0059] 7 and 8 , an embodiment of the present application further provides a slicing device, including a blade clamping mechanism 200 and the toggle-type blade retractor 100 as described above.

[0060] In this embodiment, the blade clamping mechanism 200 is the core component of the slicing device, used to clamp the blade. The toggle blade ejector 100 can be installed on the side of the blade clamping mechanism 200, directly interacting with the blade within the blade clamping mechanism 200, making it easier for the operator to replace the blade. First, the blade is placed in the blade clamping mechanism 200, which holds it firmly. When the blade needs to be replaced or removed, the operator manipulates the toggle body 112 of the toggle blade ejector 100 using the toggle handle 111, causing its arcuate surface 1121 to contact and push the blade, thereby ejecting the blade from the blade clamping mechanism 200.

[0061] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the same or similar parts between the various embodiments. It should be noted that those skilled in the art may make various improvements and modifications to the present application without departing from the principles of the present application, and such improvements and modifications also fall within the scope of protection of the claims of the present application.

[0062] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or article comprising a series of elements may include not only those elements, but also other elements not explicitly listed, or may also include elements inherent to such process, method, article or article. In the absence of further restrictions, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or article comprising the element.

Claims

1. A toggle type tool retractor is provided in a slicing device, and the slicing device includes a blade clamping mechanism for clamping a blade, characterized in that, The toggle-type tool retractor includes a toggle assembly rotatably arranged. When one end of the toggle assembly rotates in the direction towards the blade clamping mechanism, the blade clamped by the blade clamping mechanism can be pushed out.

2. The dial-type tool retractor according to claim 1, wherein The toggle assembly includes a support member and a toggle member rotatable relative to the support member, and the support member is connected to the blade clamping mechanism.

3. The toggle type tool retractor according to claim 2, characterized in that, An elastic reset member is arranged between the toggle member and the support member. One end of the elastic reset member abuts against the support member, and the other end abuts against the toggle member.

4. The toggle type tool retractor according to claim 2, characterized in that, The toggle member includes a toggle handle and a toggle body. One end of the toggle body is rotatably connected to the support member, and the other end of the toggle body can push out the blade clamped by the blade clamping mechanism. The toggle handle is connected to the toggle body.

5. The dial-type tool retractor according to claim 4, characterized in that, An arc surface is arranged on one side of the other end of the toggle body facing the blade clamping mechanism.

6. The dial-type tool retractor according to claim 2, wherein, One end of the support member is rotatably connected to the blade clamping mechanism, and the other end of the support member is rotatably connected to the toggle member.

7. The toggle type tool retractor according to claim 6, characterized in that, The rotation axis between one end of the support member and the blade clamping mechanism is in the horizontal direction, and the rotation axis between the other end of the support member and the toggle member is in the vertical direction.

8. The dial-type tool retractor according to claim 6, wherein One end of the support member is directly rotatably connected to the blade clamping mechanism; Alternatively, the toggle-type tool retractor further includes a base. The base is arranged on the side of the blade clamping mechanism, and the support member is rotatably connected to the base.

9. The dial-type tool retractor according to claim 8, characterized in that, A protrusion is arranged upward on the top of the base. One end of the support member is rotatably connected to the protrusion through a horizontally arranged first rotating shaft, and one end of the support member can rotate around the first rotating shaft.

10. A slicing device, characterized in that, It includes a blade clamping mechanism and the toggle-type tool retractor according to any one of claims 1-9.

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