Freezing slicer

Abstract

The utility model relates to a freezing slicer which comprises a machine body, a freezing chamber, a first sliding assembly, a heat absorption assembly and a freezing table. The freezing chamber is arranged in the slicing operation space; the first sliding assembly is arranged in the freezing chamber and comprises a connecting part and a sliding part, and the sliding part is in sliding fit with the connecting part; the heat absorption assembly is connected to the sliding part; the freezing table and the heat absorption assembly are oppositely arranged. The first sliding assembly is matched with the heat absorption assembly to move, so that the heat absorption assembly can cover all tissue sample areas of the freezing table, and heat absorption of large-batch tissue samples is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and particularly relates to a cryostat. Background Art

[0002] A cryostat refers to an instrument that can quickly produce tissue sections for observation by making tissues reach a certain hardness at low temperature. The cryostat consists of a cryosection system and a refrigeration system. The cryosection system usually consists of a freezing chamber, a heat absorption assembly, a freezing table, a tool rest, a blade, etc.

[0003] Currently, when a large number of tissue samples are frozen, the specifications of the freezing table also change accordingly. Since the heat absorption assembly is usually directly fixed to the freezing chamber, the position of the heat absorber of the heat absorption assembly is limited, and the heat absorption assembly cannot cover the entire tissue sample area of the freezing table. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a cryostat, aiming to solve the problem that the heat absorption assembly of the existing cryostat cannot cover the entire tissue sample area of the freezing table.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A cryostat, comprising:

[0007] A body having a sectioning operation space;

[0008] A freezing chamber provided in the sectioning operation space;

[0009] A first sliding assembly provided in the freezing chamber, the first sliding assembly comprising a connecting portion and a sliding portion, the sliding portion being slidably engaged with the connecting portion;

[0010] A heat absorption assembly connected to the sliding portion;

[0011] A freezing table disposed opposite to the heat absorption assembly.

[0012] Based on the above technical solution, the utility model can be further improved as follows.

[0013] Further, the connecting portion is a guide rail and the sliding portion is a slider.

[0014] Further, both ends of the connecting portion are provided with limiting edges.

[0015] Further, it includes a temperature sensor, and the temperature sensor is disposed opposite to the freezing table.

[0016] Further, it includes a waste water collection box, and the waste water collection box is disposed at the bottom of the freezing chamber.

[0017] Further, a filter screen is provided inside the wastewater collection box.

[0018] Further, a handle is provided on the filter screen.

[0019] Further, it includes a moving mechanism. The moving mechanism includes a carrier plate and at least two second sliding assemblies. The freezing table is provided on the carrier plate. At least two second sliding assemblies are provided on the side of the carrier plate away from the freezing table. At least two second sliding assemblies are arranged at intervals along the length direction of the carrier plate. The second sliding assembly includes a support frame, a slideway and at least two ball groups. The support frame has a support section. The slideway is slidably matched with the support section. At least two ball groups are provided between the slideway and the support section. The ball group includes at least two balls.

[0020] Further, the moving mechanism includes at least two fastening assemblies. The fastening assemblies correspond to the second sliding assemblies one by one. A long hole is formed on the support section. The slideway has an exposed part exposed outside the carrier plate. The fastening assembly includes a support column, a cross bar, an elastic part and a limiting plate. The support column is provided on the exposed part. The axis of the support column corresponds to the central axis of the long hole along the length direction. The support column is provided with a cross hole. The cross bar is arranged inside the cross hole. One end of the cross bar is exposed outside the cross hole and the other end is inserted into the long hole. The elastic part abuts between the protruding part of the cross bar and the step part of the cross hole. The limiting plate is arranged at one end of the cross bar located in the long hole. When limiting the slideway, the limiting plate abuts against the side of the support section away from the slideway.

[0021] Further, the fastening assembly includes a knob. The knob is arranged at one end of the cross bar exposed outside the cross hole.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0023] (1) By moving the first sliding assembly in cooperation with the heat absorption assembly, the heat absorption assembly can cover all the tissue sample areas of the freezing table, so as to realize heat absorption for a large number of tissue samples.

[0024] (2) By moving the freezing table, the freezing table can be far away from the heat absorption assembly to prevent the heat absorption assembly from hindering the operation of the staff.

[0025] (3) The position of the freezing table is restricted by the fastening combination to prevent it from moving during the operation of the staff, so as to ensure the stability of the freezing table. Description of the Drawings

[0026] Figure 1 This is the overall assembly diagram of a cryostat provided in the embodiment of the present utility model;

[0027] Figure 2 This is the structural schematic diagram of the freezer compartment in the embodiment of the present utility model;

[0028] Figure 3 This is the assembly schematic diagram of the first sliding assembly, heat absorption assembly, freezing table and moving mechanism in the embodiment of the present utility model;

[0029] Figure 4 This is the structural schematic diagram of the first sliding assembly in the embodiment of the present utility model;

[0030] Figure 5 This is the structural schematic diagram of the waste water collection box in the embodiment of the present utility model;

[0031] Figure 6 This is the assembly schematic diagram of the moving mechanism in the embodiment of the present utility model;

[0032] Figure 7 It is Figure 6 The partial enlarged view at position A in

[0033] Figure 8 This is the structural schematic of the support frame in the embodiment of the present utility model;

[0034] Figure 9 This is the partial structural schematic diagram of the fastening assembly in the embodiment of the present utility model.

[0035] In the drawings, the list of components represented by each reference numeral is as follows:

[0036] 10. Machine body;

[0037] 20. Freezer compartment;

[0038] 30. First sliding assembly; 31. Connecting part; 311. Limit stop edge; 32. Sliding part;

[0039] 40. Heat absorption assembly;

[0040] 50. Freezing table;

[0041] 60. Temperature sensor;

[0042] 70. Waste water collection box; 71. Filter screen; 72. Handle;

[0043] 80. Moving mechanism; 81. Carrier plate; 82. Second sliding assembly; 821. Support frame; 8211. Support section; 8212. Long hole; 822. Slideway; 823. Ball; 83. Fastening assembly; 831. Support column; 8311. Cross hole; 832. Cross bar; 833. Elastic part; 834. Limiting plate; 835. Knob. Detailed implementation manners

[0044] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0046] It can be understood that spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "over" etc. can be used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relationship terms also include different orientations of the devices during use and operation. For example, if the device in the figure is flipped, the element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (for example, rotated 90 degrees or other orientations), and the spatial description terms used herein are accordingly interpreted.

[0047] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0048] Refer to the attached Figures 1 - 4As shown in the figure, the present utility model provides a technical solution: a cryostat, comprising a machine body 10, a freezing chamber 20, a first sliding assembly 30, a heat absorption assembly 40 and a freezing table 50. The machine body 10 has a sectioning operation space; the freezing chamber 20 is arranged in the sectioning operation space; the first sliding assembly 30 is arranged in the freezing chamber 20. The first sliding assembly 30 includes a connecting portion 31 and a sliding portion 32, and the sliding portion 32 is slidably engaged with the connecting portion 31; the heat absorption assembly 40 is connected to the sliding portion 32; the freezing table 50 is disposed opposite to the heat absorption assembly 40. In the present utility model, the connecting portion 31 is a guide rail and the sliding portion 32 is a slider. In other embodiments, the connecting portion 31 can be an optical axis or the like, and the sliding portion 32 can be a linear bearing or the like.

[0049] In this embodiment, after the tissue sample is placed on the freezing table 50, the sliding portion 32 moves along the connecting portion 31, and the heat absorption assembly 40 is cooperated to absorb heat from each tissue sample, so as to achieve heat absorption for a large number of tissue samples.

[0050] Refer to the attached Figures 3 - 4 As shown in the figure, in some embodiments, both ends of the connecting portion 31 are provided with limiting edges 311.

[0051] In this embodiment, the limiting baffle 311 plays a role in limiting the sliding portion 32 to prevent the sliding portion 32 from falling off.

[0052] Refer to the attached Figure 2 As shown in the figure, in some embodiments, a temperature sensor 60 can be further included, and the temperature sensor 60 is disposed opposite to the freezing table 50.

[0053] In this embodiment, the temperature sensor 60 mainly monitors the temperature in the area of the freezing table 50, so that the temperature in the area of the freezing table 50 can be kept constant, and adverse effects on the tissue sample caused by temperature changes can be prevented.

[0054] Refer to the attached Figure 2 and 5 As shown in the figure, in some embodiments, a waste water collection box 70 is included, and the waste water collection box 70 is disposed at the bottom of the freezing chamber 20.

[0055] In this embodiment, the waste water collection box 70 collects and discharges the waste water generated in the freezing chamber 20, so that the freezing chamber 20 can be kept dry and clean.

[0056] Refer to the attached Figure 5 As shown in the figure, in some embodiments, a filter screen 71 is provided inside the waste water collection box 70.

[0057] In this embodiment, the filter screen 71 filters the waste water to prevent the tissue sample or other impurities left from falling into the waste water collection box 70.

[0058] Refer to the attachedFigure 5 As shown, in some embodiments, a handle 72 is provided on the filter screen 71.

[0059] In this embodiment, the handle 72 allows the staff to apply force to pick up and place the filter screen 71, providing convenience for the staff.

[0060] Refer to the appendix Figure 2 and 6 ~7, in some embodiments, it includes a moving mechanism 80. The moving mechanism 80 includes a carrier plate 81 and at least two second sliding assemblies 82. The freezing table 50 is provided on the carrier plate 81. At least two second sliding assemblies 82 are provided on the side of the carrier plate 81 away from the freezing table 50. At least two second sliding assemblies 82 are arranged at intervals along the length direction of the carrier plate 81. The second sliding assembly 82 includes a support frame 821, a slideway 822 and at least two ball groups. The support frame 821 has a support section 8211. The slideway 822 is slidably matched with the support section 8211. At least two ball groups are provided between the slideway 822 and the support section 8211. The ball group includes at least two balls 823.

[0061] Exemplarily, when there are two ball groups, the two ball groups are respectively arranged on both sides of the support section 8211; that is, the two ball groups are axisymmetric about the central axis of the support section 8211 along the length direction. When there are three ball groups, the three ball groups are arranged in a triangular shape; that is, two ball groups are respectively arranged on both sides of the support section 8211, and the other ball group is arranged between the top of the support section 8211 and the slideway 822.

[0062] In this embodiment, by applying force to the freezing table 50 or the carrier plate 81, it slides and moves along the support section 8211. At the same time, the balls 823 roll on the support section 8211, reducing the friction between the slideway 822 and the support section 8211. By moving the freezing table 50, especially when placing tissue samples and repairing the freezing table 50, the freezing table 50 can be far away from the heat absorption assembly 40, preventing the heat absorption assembly 40 from hindering the operation of the staff.

[0063] Refer to the appendix Figure 2 and 6As shown in FIGS. 0 to 9, in some embodiments, the moving mechanism 80 includes at least two fastening assemblies 83, and the fastening assemblies 83 correspond to the second sliding assembly 82 one by one. A long hole 8212 is formed in the support section 8211. The slideway 822 has an exposed portion exposed outside the bearing plate 81. The fastening assembly 83 includes a support column 831, a cross bar 832, an elastic portion 833 and a limiting plate 834. The support column 831 is arranged on the exposed portion, and the axis of the support column 831 corresponds to the central axis of the long hole 8212 in the length direction. A cross hole 8311 is formed in the support column 831. The cross bar 832 is arranged in the cross hole 8311, and one end of the cross bar 832 is exposed outside the cross hole 8311 and the other end is inserted into the long hole 8212. The elastic portion 833 abuts between the protruding portion of the cross bar 832 and the step portion of the cross hole 8311. The limiting plate 834 is arranged at one end of the cross bar 832 located in the long hole 8212. When limiting the slideway 822, the limiting plate 834 abuts against the side of the support section 8211 away from the slideway 822.

[0064] In the present utility model, the elastic portion 833 is a spring; in other embodiments, the elastic portion 833 can be an elastic rubber ring or the like.

[0065] According to this embodiment, when the slideway 822 needs to move, further press down the cross bar 832 to make the limiting plate 834 away from the support section 8211. At the same time, rotate the cross bar 832. Under the action of the elastic portion 833, the movement of the cross bar 832 drives the limiting plate 834 back to the long hole 8212. When the slideway 822 moves, the limiting plate 834 moves freely within the long hole 8212. When limiting the slideway 822, press down the cross bar 832 to make the limiting plate 834 enter the support section 8211. At the same time, rotate the cross bar 832. When the elastic portion 833 rebounds, the movement of the cross bar 832 drives the limiting plate 834 to abut against the support section 8211. Thus, when the position of the freezing table 50 is adjusted, the position of the freezing table 50 is restricted by the fastening combination to prevent movement during the operation of the staff, thereby ensuring the stability of the freezing table 50.

[0066] Refer to the attached Figures 6 - 7 As shown in FIGS. 11 and 9, in some embodiments, the fastening assembly 83 includes a knob 835, and the knob 835 is arranged at one end of the cross bar 832 exposed outside the cross hole 8311.

[0067] According to this embodiment, the knob 835 can be used by the staff to rotate the cross bar 832 to prevent hand slipping, which provides convenience for the staff.

[0068] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A freezing microtome, characterized in that: include: The body (10) has a slicing operation space; A freezing chamber (20), arranged in the slicing operation space; A first sliding assembly (30) is disposed in the freezing chamber (20), the first sliding assembly (30) comprising a connecting portion (31) and a sliding portion (32), the sliding portion (32) being slidably matched with the connecting portion (31); A heat absorption assembly (40) connected to the sliding portion (32); The freezing table (50) is arranged opposite to the heat absorption assembly (40).

2. A freezing microtome according to claim 1, characterized in that: The connecting portion (31) is a guide rail, and the sliding portion (32) is a sliding block.

3. A freezing microtome according to claim 2, characterized in that: Both ends of the connecting portion (31) are provided with limiting retaining edges (311).

4. A freezing microtome according to claim 1, characterized in that: It comprises a temperature sensor (60), wherein the temperature sensor (60) is arranged opposite to the freezing table (50).

5. A freezing microtome according to claim 1, characterized in that: It comprises a wastewater collection box (70), wherein the wastewater collection box (70) is arranged at the bottom of the freezing chamber (20).

6. A freezing microtome according to claim 5, characterized in that: A filter screen (71) is provided inside the wastewater collection box (70).

7. A freezing microtome according to claim 6, characterized in that: The filter screen (71) is provided with a handle (72).

8. A freezing microtome according to any one of claims 1 to 7, characterized in that: The invention comprises a moving mechanism (80), wherein the moving mechanism (80) comprises a bearing plate (81) and at least two second sliding assemblies (82); the freezing table (50) is arranged on the bearing plate (81); the at least two second sliding assemblies (82) are arranged on a side of the bearing plate (81) away from the freezing table (50); the at least two second sliding assemblies (82) are arranged at intervals along the length direction of the bearing plate (81); the second sliding assemblies (82) comprise a support frame (821), a slideway (822) and at least two ball groups; the support frame (821) has a support section (8211); the slideway (822) and the support section (8211) are slidably matched; at least two ball groups are arranged between the slideway (822) and the support section (8211); the ball group comprises at least two balls (823).

9. A freezing microtome according to claim 8, characterized in that: The moving mechanism (80) comprises at least two fastening assemblies (83), the fastening assemblies (83) corresponding one to one with the second sliding assemblies (82), the supporting section (8211) being provided with a long hole (8212), the slideway (822) having an exposed portion exposed outside the bearing plate (81), the fastening assembly (83) comprising a supporting column (831), a cross rod (832), an elastic portion (833) and a limiting plate (834), the supporting column (831) being provided at the exposed portion, the axis of the supporting column (831) corresponding to the central axis of the long hole (8212) along the length direction, the supporting column (831) being provided with a A cross hole (8311) is provided, the cross rod (832) is provided in the cross hole (8311), and one end of the cross rod (832) is exposed outside the cross hole (8311), and the other end is inserted into the long hole (8212), the elastic part (833) abuts between the protruding part of the cross rod (832) and the step part of the cross hole (8311), and the limiting plate (834) is provided at one end of the cross rod (832) located in the long hole (8212), and when limiting the slideway (822), the limiting plate (834) abuts against the side of the support section (8211) away from the slideway (822).

10. A freezing microtome according to claim 9, characterized in that: The fastening assembly (83) comprises a knob (835), wherein the knob (835) is arranged at an end of the cross rod (832) that is exposed outside the cross hole (8311).

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