Pathological sampling cutter

Abstract

One end of the fixing plate is fixed on the knife handle, the other end of the fixing plate is hinged to the rotary blocking piece, a blade positioning groove matched with a sampling blade is formed in the front face of the fixing plate, after the blade is installed, a cutting edge extends out of the side face, and a plurality of limiting holes are formed in the back side of the blade. A positioning screw is fixed to the position, close to the knife handle, of the front face of the fixing plate, a butterfly nut is connected to the screw, the rotating blocking piece is matched with the fixing plate in size and hinged to one end of the fixing plate, and the other end of the rotating blocking piece is a free end and provided with a positioning hole. The rotating baffle rotates around the rotating shaft to form an opening state and a locking state, and in the opening state, the rotating baffle rotates to expose the blade positioning groove; in the locking state, the rotary blocking piece coincides with the fixing plate and is clamped on the positioning screw rod through the guide groove, the sampling blade is more convenient to mount and dismount, meanwhile, the stability of the blade is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a pathological material taking knife. Background Art

[0002] Pathology specimen cutting knives are indispensable tools in the process of cutting pathological specimens. In the field of pathology, in order to make accurate pathological diagnosis and research, it is necessary to accurately cut the patient's tissue samples. At present, most pathology departments use a paraffin slicer connected to a specimen cutting knife to prepare the specimen cutting knife. However, this traditional method has some obvious defects.

[0003] First, installing the blade is a difficult process. Since the cutting blade is very sharp, the operator needs to insert the cutting blade into the blade slit of the cutting tool when replacing the cutting blade. This action makes the operator very easy to be scratched by the cutting edge of the cutting blade.

[0004] Secondly, after the sampling blade is installed in the sampling tool, if there is no other fixing method, the sampling blade is easy to fall off. Therefore, a corresponding through hole is provided between the existing sampling blade and the sampling tool, and the connection between the two is strengthened by bolts, such as Chinese utility model patent: 202121040948.1, the patent name is a pathological sampling tool, which fixes the blade and the tool by fixing screws. However, with this fixing method, although the connection between the sampling blade and the sampling tool is stable after fixation, when replacing the sampling blade, the screw must be removed first, the blade must be removed, and then the screw must be installed. This operation requires an additional screwdriver and invisibly increases the complexity of the replacement, affecting the efficiency of the sampling work. Utility Model Content

[0005] The utility model solves the deficiencies of the prior art and provides a pathological sampling knife which can improve the efficiency of replacing sampling blades and reduce the risk of scratches for operators.

[0006] To achieve the above object, the present utility model first proposes a pathological sampling tool, which includes a tool handle, a fixing plate and a rotating shutter. One end of the fixing plate is fixed on the tool handle, and a rotating shutter is hinged to the front of the other end through a rotating shaft. The rotating shaft is perpendicular to the fixing plate. A blade positioning groove matching the sampling blade is formed on one side of the front of the fixing plate. After the sampling blade is installed in the blade positioning groove, the cutting edge of the sampling blade extends out from the side of the fixing plate. A plurality of limiting holes are arranged on the back side of the sampling blade. Blade limiting bumps matching the limiting holes on the sampling blade are arranged in the blade positioning groove. After the sampling blade is installed in the blade positioning groove, preliminary limiting is achieved through the blade limiting bumps. A positioning screw is fixed on the front of the fixing plate and close to the tool handle side. The positioning screw is vertically arranged with the fixing plate. A butterfly nut is threadedly connected to the positioning screw. The rotating shutter matches the size of the fixing plate. One end of the rotating shutter hinged to the fixing plate is the hinged end, and the other end is the free end. An arc-shaped guide groove matching the positioning screw is arranged on the side of the free end of the rotating shutter facing the positioning screw. A positioning hole matching the blade limiting bump is also arranged on the rotating shutter. The rotating shutter rotates around the rotating shaft to form an open state and a locked state. In the open state, the rotating shutter rotates counterclockwise away from the fixing plate, and the blade positioning groove on the fixing plate is completely exposed. At this time, it is convenient to install the sampling blade in the blade positioning groove. In the locked state, the rotating shutter rotates clockwise, and the rotating shutter completely coincides with the fixing plate. The rotating shutter is clamped on the positioning screw through the guide groove. The top of the blade limiting bump on the fixing plate extends into the positioning hole of the rotating shutter. Then, by rotating the butterfly nut, the rotating shutter is pressed against the fixing plate by the butterfly nut, so that the rotating shutter and the fixing plate are locked through the butterfly nut.

[0007] In this embodiment, the thickness of the blade positioning groove matches the thickness of the back side of the sampling blade.

[0008] In this embodiment, the length of the sampling blade is greater than the length of the blade positioning groove, so that after the sampling blade is installed in the blade positioning groove, the front end of the sampling blade extends out from the front end of the fixing plate.

[0009] In this embodiment, the rotating shaft is a pin rotating shaft.

[0010] In this embodiment, a scale is arranged on the back of the fixing plate and away from the sampling blade side along the length direction of the sampling blade. The sampling position can be conveniently measured through the scale.

[0011] In this embodiment, a protruding stop piece positioning block is further provided on the front surface of the fixed plate, on the side away from the blade positioning groove. A stop piece positioning groove matching the stop piece positioning block is provided on the rotating stop piece. When in the locked state and the rotating stop piece completely coincides with the fixed plate, the stop piece positioning block on the fixed plate is just inserted into the stop piece positioning groove of the rotating stop piece, so that the rotating stop piece cannot continue to rotate clockwise, ensuring that the rotating stop piece can rotate in place each time and improving the positioning accuracy.

[0012] With the above structure, the utility model has the following advantages:

[0013] 1. This device uses the blade limiting convex block to limit the horizontal movement of the sampling blade in the blade positioning groove, and at the same time uses the rotating stop piece to limit the vertical movement of the sampling blade in the blade positioning groove. On the one hand, this ensures the stable fixation of the sampling blade. On the other hand, since the fixation of the rotating stop piece and the fixed plate only needs to rotate the butterfly nut, without the need to rely on other tools, the efficiency of replacing the sampling blade is greatly improved.

[0014] 2. Since one end of the sampling blade extends out of the fixed plate in this device, when installing the sampling blade, just hold the extended end of the sampling blade and place the sampling blade into the blade positioning groove from top to bottom for positioning, greatly reducing the risk of the operator being scratched.

[0015] 3. A scale is arranged on the back surface of the fixed plate of this device, on the side away from the sampling blade, along the length direction of the sampling blade. The sampling position can be conveniently measured through the scale.

[0016] In summary, this device makes the installation and disassembly of the sampling blade more convenient, while increasing the stability of the blade and improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of the front of the utility model.

[0018] Figure 2 It is a front view of the utility model.

[0019] Figure 3 It is a rear view of the utility model.

[0020] Figure 4 It is a perspective view of the utility model after removing the rotating stop piece.

[0021] Figure 5 It is a left view of the utility model.

[0022] In the attached drawings: 1. Rotating baffle; 11. Positioning hole; 12. Guide groove; 13. Baffle positioning groove; 2. Fixed plate; 21. Rotating shaft; 22. Blade positioning groove; 23. Baffle positioning block; 24. Butterfly nut; 25. Positioning screw; 26. Blade limiting convex block; 27. Scale; 3. Knife handle; 4. Sampling blade. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0024] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0025] As Figures 1 to 5 shown, a pathological sampling tool includes a knife handle 3, a fixed plate 2 and a rotating baffle 1. One end of the fixed plate 2 is fixed on the knife handle 3, and the front of the other end is hinged with a rotating baffle 1 through a rotating shaft 21. The rotating baffle 1 is arranged in parallel with the fixed plate 2. A blade positioning groove 22 is opened on one side of the front of the fixed plate 2. The thickness of the blade positioning groove 22 matches the thickness of the back side of the sampling blade 4. After the sampling blade 4 is installed in the blade positioning groove 22, the front end of the sampling blade 4 extends out from the front end of the fixed plate 2, the cutting edge of the sampling blade 4 extends out from the side of the fixed plate 2, and a plurality of limiting holes are arranged on the back side of the sampling blade 4. A plurality of blade limiting convex blocks 26 matching the limiting holes on the sampling blade 4 are arranged in the blade positioning groove 22. The height of the blade limiting convex block 26 is slightly greater than the depth of the blade positioning groove 22. After the sampling blade 4 is installed in the blade positioning groove 22, preliminary limiting is realized through the blade limiting convex block 26;

[0026] A positioning screw 25 is fixed on the front of the fixed plate 2 and close to the knife handle 3. The positioning screw 25 is arranged perpendicular to the fixed plate 2. A butterfly nut 24 is threadedly connected to the positioning screw 25. The rotating baffle 1 and the fixed plate 2 are of the same size. One end of the rotating baffle 1 hinged to the fixed plate 2 is the hinged end, and the other end is the free end. An arc-shaped guide groove 12 is arranged on the side of the free end of the rotating baffle 1 facing the positioning screw 25. The rotating baffle 1 is also provided with a positioning hole 11 matching the blade limiting convex block 26. The rotating baffle 1 rotates around the rotating shaft 21 to form an open state and a locked state. AsFigure 2 As shown, when in the open state, the rotary shutter 1 rotates counterclockwise away from the fixed plate 2, so that the blade positioning groove 22 on the fixed plate 2 is completely exposed. At this time, it is convenient to install the sampling blade 4 in the blade positioning groove 22; when in the locked state, the rotary shutter 1 rotates clockwise, and the rotary shutter 1 completely coincides with the fixed plate 2. At this time, the rotary shutter 1 is clamped on the positioning screw 25 through the guide groove 12, and the top of the blade limiting convex block 26 on the fixed plate 2 extends into the positioning hole 11 of the rotary shutter 1. Then, by rotating the butterfly nut 24, the rotary shutter 1 is pressed against the fixed plate 2 by using the butterfly nut 24, so that the rotary shutter 1 is fixedly connected to the fixed plate 2. Through the above structure, the blade limiting convex block 26 is used to limit the horizontal movement of the sampling blade 4 in the blade positioning groove 22, and at the same time, the rotary shutter 1 is used to limit the vertical movement of the sampling blade 4 in the blade positioning groove 22. In this way, on the one hand, the fixation of the sampling blade 4 is ensured to be stable, and on the other hand, since the fixation of the rotary shutter 1 and the fixed plate 2 only needs to rotate the butterfly nut 24, other tools are not needed, which greatly improves the efficiency of replacing the sampling blade 4; and since one end of the sampling blade 4 extends out of the fixed plate 2, when installing the sampling blade 4, only need to hold the extended end of the sampling blade 4 and place the sampling blade 4 into the blade positioning groove 22 from top to bottom for positioning, which greatly reduces the risk of the operator being scratched.

[0027] As Figure 2 、 3 shown, further, the rotating shaft 21 is a pin rotating shaft, or the rotating shaft is connected to the fixed plate 2 by a thread, so that the clamping force between the rotary shutter 1 and the fixed plate 2 at the rotating end can be adjusted, so as to conveniently adjust the damping when the rotary shutter 1 rotates; on the back surface of the fixed plate 2 and on the side far from the sampling blade 4, a scale 27 is arranged along the length direction of the sampling blade 4, and the sampling position can be conveniently measured through the scale 27. On the front surface of the fixed plate 2 and on the side far from the blade positioning groove 22, a protruding shutter positioning block 23 is further arranged, and the rotary shutter 1 is provided with a shutter positioning groove 13 matching the shutter positioning block 23. When in the locked state and the rotary shutter 1 completely coincides with the fixed plate 2, the shutter positioning block 23 on the fixed plate 2 just fits into the shutter positioning groove 13 of the rotary shutter 1, so that the rotary shutter 1 cannot continue to rotate clockwise, ensuring that the rotary shutter 1 can rotate in place every time and improving the positioning accuracy.

[0028] Usage method:

[0029] 1. When it is necessary to replace the sampling blade 4, first loosen the butterfly nut 24, then rotate the rotary shutter 1 counterclockwise so that the rotary shutter 1 does not block the blade positioning groove 22, and then hold the end of the sampling blade 4 extending out of the fixed plate 2 and take out the old sampling blade 4.

[0030] 2. Then take out the new sampling blade 4. Hold one end of the sampling blade 4 and align the limit hole of the sampling blade 4 with the blade limit protrusion 26 on the fixing plate 2. Place the sampling blade 4 into the blade positioning groove 22, so as to limit the movement of the sampling blade 4 in the direction parallel to the fixing plate within the blade positioning groove 22. Then rotate the rotating flap 1 clockwise (since the rotating flap 1 has a certain deformation ability (such as a steel sheet), using this deformation ability, when the rotating flap 1 rotates to the position of the blade limit protrusion 26, the rotating flap 1 arches slightly and can bypass the blade limit protrusion 26 without being interfered by the blade limit protrusion 26). Rotate until the rotating flap 1 completely coincides with the fixing plate 2. At this time, the guide groove 12 of the rotating flap 1 is clamped on the positioning screw 25, and the top of the blade limit protrusion 26 on the fixing plate 2 extends into the positioning hole 11 of the rotating flap 1. Then rotate the butterfly nut 24, and use the butterfly nut 24 to press the rotating flap 1 tightly against the fixing plate 2, so that the rotating flap 1 is fixedly connected to the fixing plate 2, clamping the sampling blade 4 tightly, and completing the replacement of the sampling blade 4.

[0031] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A pathological sampling tool, characterized in that: It includes a tool handle (3), a fixing plate (2) and a rotating shutter (1). One end of the fixing plate (2) is fixed on the tool handle (3), and the front of the other end is hinged with the rotating shutter (1) through a rotating shaft (21). The rotating shaft (21) is perpendicular to the fixing plate (2). A blade positioning groove (22) matching the sampling blade (4) is formed on one side of the front of the fixing plate (2). After the sampling blade (4) is installed in the blade positioning groove (22), the cutting edge of the sampling blade (4) extends out from the side of the fixing plate (2). A plurality of limiting holes are arranged on the back side of the sampling blade (4). Blade limiting protrusions (26) matching the limiting holes on the sampling blade (4) are arranged in the blade positioning groove (22). A positioning screw (25) is fixed on the front of the fixing plate (2) and close to the tool handle (3). The positioning screw (25) is vertically arranged with respect to the fixing plate (2). A butterfly nut (24) is threadedly connected to the positioning screw (25). The rotating shutter (1) matches the size of the fixing plate (2). The end of the rotating shutter (1) hinged to the fixing plate (2) is the hinged end, and the other end is the free end. An arc-shaped guide groove (12) matching the positioning screw (25) is arranged on the side of the free end of the rotating shutter (1) facing the positioning screw (25). A positioning hole (11) matching the blade limiting protrusion (26) is also arranged on the rotating shutter (1). The rotating shutter (1) rotates around the rotating shaft (21) to form an open state and a locked state. In the open state, the rotating shutter (1) is away from the fixing plate (2), so that the blade positioning groove (22) on the fixing plate (2) is completely exposed. In the locked state, the rotating shutter (1) completely coincides with the fixing plate (2). The rotating shutter (1) is clamped on the positioning screw (25) through the guide groove (12). The top of the blade limiting protrusion (26) on the fixing plate (2) extends into the positioning hole (11) of the rotating shutter (1). The rotating shutter (1) and the fixing plate (2) are locked by the butterfly nut (24).

2. The pathological sampling tool according to claim 1, wherein: The thickness of the blade positioning groove (22) matches the thickness of the back side of the sampling blade (4).

3. The pathological sampling tool according to claim 1, characterized in that: The length of the sampling blade (4) is greater than the length of the blade positioning groove (22), so that after the sampling blade (4) is installed in the blade positioning groove (22), the front end of the sampling blade (4) extends out from the front end of the fixing plate (2).

4. The pathological sampling tool according to claim 1, characterized in that: The rotating shaft (21) is a pin rotating shaft.

5. The pathological sampling tool according to claim 1, characterized in that: Scales (27) arranged along the length direction of the sampling blade (4) are provided on the back of the fixing plate (2) and away from the sampling blade (4).

6. The pathological sampling tool according to claim 1, wherein: A protruding shutter positioning block (23) is further arranged on the front of the fixing plate (2) and away from the blade positioning groove (22). A shutter positioning groove (13) matching the shutter positioning block (23) is arranged on the rotating shutter (1). In the locked state, when the rotating shutter (1) completely coincides with the fixing plate (2), the shutter positioning block (23) on the fixing plate (2) is just inserted into the shutter positioning groove (13) of the rotating shutter (1).

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