Tool changing device for pathological sampling tool

Abstract

The utility model provides a tool changing device for a pathological sampling tool, which comprises a holding part, a tool changing part and a tool changing part, the holding part comprises a first sub-part and a second sub-part which are connected with each other, and the first sub-part and the second sub-part have rotary motion travels perpendicular to a connecting axis; the clamping part comprises a first clamping piece and a second clamping piece; the first clamping piece is connected to the first end of the first sub-part, and the second clamping piece is connected to the first end of the second sub-part; wherein the first clamping piece and the second clamping piece jointly form a clamping groove so as to clamp a blade of the pathological sampling knife and at least partially contain a knife holder of the pathological sampling knife. The pathological sampling knife can protect an operator from being accidentally injured by a cutting edge in the knife changing process of the pathological sampling knife, and meanwhile, the knife changing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and more particularly, to a knife-changing device for a pathological sampling knife. Background Art

[0002] A pathological sampling knife is a special tool for taking pathological samples. It is mainly used for cutting tissue samples for further analysis under a microscope. The pathological sampling knife usually has an extremely sharp blade to ensure that very thin and uniform sample slices can be cut, thus ensuring the accuracy of pathological detection.

[0003] Currently, the process of changing the blade of a pathological sampling knife is usually carried out manually or with hemostatic forceps. The whole blade is completely exposed, and the blade edge poses a great safety hazard to the operator's hand safety. In addition, the current unloading and installation of the blade are divided into two independent steps, and the knife-changing efficiency is relatively low.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present utility model, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In view of this, the present utility model provides a knife-changing device for a pathological sampling knife to at least solve the problems of accidental injury to the operator by the blade edge and low knife-changing efficiency at present.

[0006] The present utility model provides a knife-changing device for a pathological sampling knife, comprising:

[0007] A holding part, the holding part includes a first sub-part and a second sub-part connected to each other, and the first sub-part and the second sub-part have a rotational movement stroke perpendicular to the connection axis;

[0008] A clamping part, the clamping part includes a first clamping piece and a second clamping piece; the first clamping piece is connected to the first end of the first sub-part, and the second clamping piece is connected to the first end of the second sub-part;

[0009] Wherein, the first clamping piece and the second clamping piece jointly form a clamping groove for clamping the blade of the pathological sampling knife and at least partially accommodating the knife clip of the pathological sampling knife.

[0010] In some embodiments, one end of the second clamping piece further includes a blocking part. When the first clamping piece and the second clamping piece are closed, the blocking part abuts against the first clamping piece, and one end of the clamping groove close to the blocking part is closed.

[0011] In some embodiments, the clamping groove includes a first sub-groove and a second sub-groove;

[0012] The first sub-slot is located between the second sub-slot and the connection of the first sub-part and the second sub-part. The first sub-slot is used to clamp the blade of the pathological sampling knife.

[0013] The gap width of the first sub-slot is smaller than that of the second sub-slot. The second sub-slot is used to partially accommodate the blade and partially accommodate the knife clip of the pathological sampling knife.

[0014] In some embodiments, the cutting edge of the blade is located within the first sub-slot;

[0015] The back of the blade is located within the second sub-slot.

[0016] In some embodiments, the first end of the first sub-part is close to the first end of the second sub-part.

[0017] In some embodiments, the connection of the first sub-part and the second sub-part is located between the first end and the second end of the first sub-part;

[0018] The connection of the first sub-part and the second sub-part is also located between the first end and the second end of the second sub-part.

[0019] In some embodiments, the first clip is integrally formed with the first sub-part;

[0020] The second clip is integrally formed with the second sub-part.

[0021] In some embodiments, the first sub-part and the second sub-part are in a snap connection, and the length of the first sub-part is less than that of the second sub-part.

[0022] In some embodiments, the first sub-part and the second sub-part are in a hinge connection, and the length of the first sub-part is equal to that of the second sub-part.

[0023] In some embodiments, the outer surfaces of the first sub-part and the second sub-part respectively have anti-slip structures.

[0024] The tool changing device for the pathological sampling knife of the present utility model can protect the operator from being accidentally injured by the cutting edge during the tool changing process by providing a tool changing device for the pathological sampling knife that can completely hide the cutting edge, and can complete the unloading and installation of the blade simultaneously, improving the tool changing efficiency.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Description of the Drawings

[0026] The accompanying drawings here are incorporated into the specification and form a part of this specification to conform to the embodiments of the present utility model and are used together with the specification to explain the principles of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other accompanying drawings based on these drawings without creative efforts.

[0027] Figure 1 is a schematic three-dimensional structure diagram of a pathological sampling knife in the related art;

[0028] Figure 2 is another schematic three-dimensional structure diagram of a pathological sampling knife in the related art;

[0029] Figure 3 is a schematic three-dimensional structure diagram of assembling a blade on a pathological sampling knife in the related art;

[0030] Figure 4 is Figure 3 a schematic cross-sectional view of assembling a blade on a pathological sampling knife in

[0031] Figure 5 is a schematic overall structure diagram of a tool changing device for a pathological sampling knife according to an embodiment of the present utility model;

[0032] Figure 6 is a schematic specific structure diagram of a tool changing device for a pathological sampling knife according to an embodiment of the present utility model;

[0033] Figure 7 is Figure 6 a front view of the tool changing device for a pathological sampling knife in

[0034] Figure 8 is Figure 6 a schematic unfolded structure diagram of the tool changing device for a pathological sampling knife in

[0035] Figure 9 is Figure 6 a schematic closed structure diagram of the tool changing device for a pathological sampling knife in

[0036] Figure 10 is Figure 9 a partial enlarged view of the clamping groove of the tool changing device for a pathological sampling knife in

[0037] Figure 11 is Figure 9 a top view of the tool changing device for a pathological sampling knife in

[0038] Figure 12 is a schematic specific structure diagram of another tool changing device for a pathological sampling knife according to an embodiment of the present utility model;

[0039] Figure 13It is a schematic diagram of the assembly state of the heat - sleeved rear housing and the stator in an embodiment of the present utility model.

[0040] Reference numerals:

[0041] 10. Holding part; 11. First sub - part; 12. Second sub - part; 20. Clamping part; 21. First clamping piece; 22. Second clamping piece; 221. Blocking part; 23. Clamping groove; 231. First sub - groove; 232. Second sub - groove; 30. Pathological sampling knife; 31. Blade; 311. Blade edge; 312. Knife back; 32. Knife clip; 33. Knife handle; S1. First direction; S2. Second direction. Detailed implementation manners

[0042] Now, the exemplary embodiments will be described more comprehensively with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus their repeated description will be omitted.

[0043] When specifically describing, the terms "first", "second" and similar terms do not denote any order, quantity or importance, but are only used to distinguish different components. In addition, in the description of the present utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0044] It should be noted that, without conflict, the features in the embodiments of the present utility model and those in different embodiments can be combined with each other.

[0045] In the related art, as Figure 1 , Figure 2 and Figure 3 shown, the pathological sampling knife 30 includes a blade 31, a knife clip 32 and a knife handle 33. Among them, the blade 31 includes a blade edge 311 and a knife back 312. The knife handle 33 is used for the operator to hold the pathological sampling knife 30. The knife clip 32 is used to clamp the blade 31.

[0046] Specifically, as Figure 3 and Figure 4As shown, the blade 31 is used to cut the sample slice. In view of different samples or the situation of blade rusting, etc., it is necessary to replace the blade 31 in the tool holder 32. However, the cutting edge 311 of the blade 31 is exposed, which poses a great safety hazard to the safety of the operator's hand. In addition, in the related art, the process of replacing the blade 31 of the pathological sampling knife 30 is as follows: first remove the old blade 31, and then install the new blade 31, that is, unloading the blade and installing the blade are divided into two independent steps, with complex operations and low tool change efficiency.

[0047] Through careful and in-depth research, the inventor of this case provides a solution to the problems existing in the prior art. The present utility model provides a tool change device for a pathological sampling knife, including: a holding part, the holding part includes a first sub-part and a second sub-part connected to each other, and the first sub-part and the second sub-part have a rotational movement stroke perpendicular to the connection axis; a clamping part, the clamping part includes a first clamping piece and a second clamping piece; the first clamping piece is connected to the first end of the first sub-part, and the second clamping piece is connected to the first end of the second sub-part; wherein, the first clamping piece and the second clamping piece jointly form a clamping groove to clamp the blade of the pathological sampling knife and at least partially accommodate the tool holder of the pathological sampling knife. The present utility model can protect the operator from being accidentally injured by the cutting edge during the tool change process, and complete unloading the blade and installing the blade at the same time, improving the tool change efficiency.

[0048] The following further describes the present application in conjunction with the accompanying drawings and specific embodiments.

[0049] As Figures 5 to 12 shown, the present utility model provides a tool change device for a pathological sampling knife, including: a holding part 10 and a clamping part 20.

[0050] Specifically, the holding part 10 includes a first sub-part 11 and a second sub-part 12 connected to each other, and the first sub-part 11 and the second sub-part 12 have a rotational movement stroke perpendicular to the connection axis. The clamping part 20 includes a first clamping piece 21 and a second clamping piece 22; the first clamping piece 21 is connected to the first end of the first sub-part 11, and the second clamping piece 22 is connected to the first end of the second sub-part 12. Wherein, the first clamping piece 21 and the second clamping piece 22 jointly form a clamping groove 23 to clamp the blade 31 of the pathological sampling knife 30 and at least partially accommodate the tool holder 32 of the pathological sampling knife 30. The tool change device for the pathological sampling knife of the present utility model has a clamping groove 23 for clamping the blade 31, and can completely hide the blade 31 during the tool change process to protect the operator from being accidentally injured by the cutting edge 311, effectively reducing the infection caused by being scratched by the cutting edge 311.

[0051] In some embodiments, as Figure 11As shown, the second clip 22 further includes a blocking portion 221. When the first clip 21 and the second clip 22 are closed, one end of the clamping groove 23 is closed. During the tool change process, since the friction force that the tool holder 32 of the pathological sampling knife 30 can provide to the old blade 31 may be greater than the friction force that the groove wall of the first sub-groove 231 can provide to the new blade 31, it may cause the new blade 31 to slide out of the first sub-groove 231 during the tool change process. Therefore, the blocking portion 221 closes one end of the clamping groove 23, and the new blade 31 is not only subject to the friction force from the groove wall of the first sub-groove 231 but also subject to the supporting force from the blocking portion 221, preventing the new blade 31 from sliding out of the clamping groove 23 to ensure the success of the tool change and further avoiding accidental injury to the operator caused by the exposure of the new blade 31.

[0052] In some embodiments, as Figure 9 and Figure 10 shown, the clamping groove 23 includes a first sub-groove 231 and a second sub-groove 232. The first sub-groove 231 is located between the second sub-groove 232 and the connection between the first sub-portion 11 and the second sub-portion 12. The gap width of the first sub-groove 231 is smaller than the gap width of the second sub-groove 232.

[0053] In some embodiments, as Figure 9 and Figure 10 shown, the first sub-groove 231 is used to clamp the blade 31 of the pathological sampling knife 30. The second sub-groove 232 is used to partially accommodate the blade 31 and partially accommodate the tool holder 32 of the pathological sampling knife 30.

[0054] Furthermore, the gap width of the first sub-groove 231 is slightly smaller than the thickness of the blade 31 to ensure that the clamping groove 23 can firmly clamp the blade 31 and the old blade 31 in the tool holder 32 can be replaced with a new blade 31 during the tool change process. The gap width of the second sub-groove 232 is slightly larger than the thickness of the tool holder 32 of the pathological sampling knife 30 to ensure that the tool holder 32 is not clamped during the tool change process, and thus the tool holder 32 can freely move along the extension direction of the second sub-groove 232 in the second sub-groove 232 of the clamping groove 23 to realize the replacement of the old and new blades 31.

[0055] In some embodiments, as Figure 9 and Figure 10 shown, the cutting edge 311 of the blade 31 is located in the first sub-groove 231 to ensure that the cutting edge 311 of the blade 31 is completely hidden during the tool change process to protect the operator from accidental injury by the cutting edge. The back 312 of the blade 31 is located in the second sub-groove 232 to facilitate the insertion of the back 312 of the new blade into the tool holder 32 of the pathological sampling knife 30 to replace the old blade 31 in the tool holder 32 during the tool change process.

[0056] In some embodiments, the first end of the first sub - part 11 is close to the first end of the second sub - part 12. Such an arrangement enables the first clamping piece 21 and the second clamping piece 22 to jointly form a clamping groove 23.

[0057] In some embodiments, the connection part between the first sub - part 11 and the second sub - part 12 is located between the first end and the second end of the first sub - part 11; the connection part between the first sub - part 11 and the second sub - part 12 is also located between the first end and the second end of the second sub - part 12. Such an arrangement facilitates operating the second ends of the first sub - part 11 and the second sub - part 12 to make the first clamping piece 21 and the second clamping piece 22 at the first ends approach or move away from each other, so as to clamp or loosen the blade 31.

[0058] In some embodiments, the first clamping piece 21 is integrally formed with the first sub - part 11; the second clamping piece 22 is integrally formed with the second sub - part 12. Such an arrangement facilitates the preparation of the knife - changing device of the pathological sampling knife and reduces the production cost.

[0059] In some alternative embodiments, as Figure 8 shown, the first sub - part 11 and the second sub - part 12 are in a snap - lock connection, and the length of the first sub - part 11 is less than that of the second sub - part 12. The snap - lock connection enables the clamping force of the clamping groove 23 on the blade 31 to be stable, and there is no need to consider applying the clamping force on the blade 31 during the knife - changing process, thus simplifying the knife - changing process.

[0060] In some alternative embodiments, as Figure 12 shown, the first sub - part 11 and the second sub - part 12 are in a hinge connection, and the length of the first sub - part 11 is equal to that of the second sub - part 12. Specifically, the holding part 10 in this embodiment is similar to a pliers structure, which can flexibly increase or decrease the clamping force of the clamping groove 23 on the blade 31 and improve the success rate of knife - changing.

[0061] In some alternative embodiments, the connection manner between the first sub - part 11 and the second sub - part 12 can also be other ways, as long as it can ensure that the first clamping piece 21 and the second clamping piece 22 can approach or move away from each other to clamp or loosen the blade 31.

[0062] In some embodiments, the outer surfaces of the first sub - part 11 and the second sub - part 12 respectively have anti - slip structures, so as to facilitate the operator to operate the knife - changing device of the pathological sampling knife and ensure the safety of the knife - changing process.

[0063] Specifically, during implementation, as Figure 3 and 4As shown, the length L3 of the blade 31 can be 80 mm, the width L4 can be 14 mm, and the thickness L5 can be 0.25 mm. When the blade 31 and the pathological sampling knife 30 are in the installed state, along the length direction of the blade 31, the length L1 of the blade 31 exposed from the tool holder 32 can be 10 mm; along the width direction of the blade 31, the length L2 of the cutting edge 311 of the blade 31 exposed from the tool holder 32 can be 8 mm; along the width direction of the blade 31, the length L6 of the blade 31 hidden in the tool holder 32 can be 6 mm.

[0064] Further, continue to refer to Figure 4 , the width H1 of the tool holder 32 can be 14 mm, and the thickness H2 of the tool holder 32 can be 1.90 mm.

[0065] Further, as Figure 5 shown, the total depth D1 of the first sub-groove 231 and the second sub-groove 232 can be 16 mm, and the length W1 of the first sub-groove 231 or the second sub-groove 232 can be 90 mm.

[0066] Further, as Figure 9 shown, the width W2 of the first sub-groove 231 can be 0.20 mm, and the depth D2 can be 8.00 mm; the width W3 of the second sub-groove 232 can be 2.00 mm, and the depth D3 can be 8.00 mm.

[0067] As Figure 13 shown, the process of replacing the blade 31 of the pathological sampling knife 30 is specifically as follows:

[0068] First step, the operator holds the pathological sampling knife 30 with the old blade 31 installed in one hand;

[0069] Second step, the operator holds the tool-changing device of the pathological sampling knife with the new blade 31 installed in the other hand; wherein, the new blade 31 is completely hidden in the clamping groove 23, and the installation method of the new blade 31 is that the cutting edge 311 faces the holding part 10;

[0070] Third step, move the tool-changing device of the pathological sampling knife along the first direction S1 so that the back 312 of the new blade 31 is inserted into the tool holder 32 of the pathological sampling knife 30;

[0071] Fourth step, move the tool-changing device of the pathological sampling knife along the second direction S2 so that the new blade 31 abuts against the old blade 31 and pushes the old blade 31 out of the tool holder 32;

[0072] Fifth step, operate the first sub-part 11 and the second sub-part 12 of the holding part 10 to make the clamping part 20 release the new blade 31 to complete the tool-changing process of the pathological sampling knife 30.

[0073] Therefore, the tool changing device of the pathological sampling knife of the present utility model can complete both unloading the blade and installing the blade simultaneously, improving the tool changing efficiency.

[0074] In summary, the tool changing device of the pathological sampling knife of the present utility model can protect the operator from being accidentally injured by the blade during the tool changing process and complete both unloading the blade and installing the blade simultaneously, improving the tool changing efficiency by providing a tool changing device for a pathological sampling knife that can completely hide the blade edge.

[0075] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present utility model.

Claims

1. A knife-changing device for a pathological sampling knife, characterized in that, Comprising: A holding part (10), the holding part (10) includes a first sub - part (11) and a second sub - part (12) connected to each other, and the first sub - part (11) and the second sub - part (12) have a rotational movement stroke perpendicular to the connection axis; A clamping part (20), the clamping part (20) includes a first clamping piece (21) and a second clamping piece (22); the first clamping piece (21) is connected to the first end of the first sub - part (11), and the second clamping piece (22) is connected to the first end of the second sub - part (12); Wherein, the first clamping piece (21) and the second clamping piece (22) jointly form a clamping groove (23) to clamp the blade (31) of the pathological sampling knife (30) and at least partially accommodate the knife clip (32) of the pathological sampling knife (30).

2. The knife changing device for the pathological sampling knife according to claim 1, wherein, One end of the second clamping piece (22) further includes a blocking part (221). When the first clamping piece (21) and the second clamping piece (22) are closed, the blocking part (221) abuts against the first clamping piece (21), and one end of the clamping groove (23) close to the blocking part (221) is closed.

3. The knife changing device for the pathological sampling knife according to claim 2, wherein, The clamping groove (23) includes a first sub - groove (231) and a second sub - groove (232); The first sub - groove (231) is located between the second sub - groove (232) and the connection part of the first sub - part (11) and the second sub - part (12), and the first sub - groove (231) is used for clamping the blade (31) of the pathological sampling knife (30); The gap width of the first sub - groove (231) is smaller than the gap width of the second sub - groove (232), and the second sub - groove (232) is used for partially accommodating the blade (31) and partially accommodating the knife clip (32) of the pathological sampling knife (30).

4. The knife changing device for the pathological sampling knife according to claim 3, wherein, The cutting edge (311) of the blade (31) is located in the first sub - groove (231); The back of the blade (312) of the blade (31) is located in the second sub - groove (232).

5. The knife changing device for the pathological sampling knife according to claim 1, wherein, The first end of the first sub - part (11) is close to the first end of the second sub - part (12).

6. The knife changing device for the pathological sampling knife according to claim 1, wherein, The connection part of the first sub - part (11) and the second sub - part (12) is located between the first end and the second end of the first sub - part (11); The connection part of the first sub - part (11) and the second sub - part (12) is also located between the first end and the second end of the second sub - part (12).

7. The knife changing device for the pathological sampling knife according to claim 1, wherein, The first clamping piece (21) is integrally formed with the first sub - part (11); The second clamping piece (22) is integrally formed with the second sub - part (12).

8. The knife changing device of the pathological sampling knife according to claim 1, wherein, the first sub - part (11) and the second sub - part (12) are connected by a buckle, and the length of the first sub - part (11) is less than that of the second sub - part (12).

9. The knife changing device of the pathological sampling knife according to claim 1, wherein, the first sub - part (11) and the second sub - part (12) are connected by a hinge, and the length of the first sub - part (11) is equal to that of the second sub - part (12).

10. The knife changing device of the pathological sampling knife according to claim 1, wherein, the outer surfaces of the first sub - part (11) and the second sub - part (12) respectively have anti - slip structures.

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