Hand support assembly and freezing slicer

Abstract

The utility model discloses a hand rest assembly and a freezing slicer, and the hand rest assembly comprises a connecting piece used for being detachably connected with a knife rest; the hand support is arranged on the knife rest through a connecting piece, and the hand support is made of a heat insulation material. According to the hand support assembly, when the freezing slicer cuts a sample, the hand support can support the hand of an operator when the freezing slicer cuts the sample, on one hand, the hand is prevented from being swollen due to long-term suspension, and on the other hand, the hand is prevented from making contact with surrounding metal unwell due to the fact that the temperature of the freezing slicer is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a section machine technical field especially a hand support subassembly and frozen section machine. BACKGROUND

[0002] The section machine is used for making the slice of various samples in the field of medical science, biology and botany, material research and engineering material quality control. In order to quickly obtain the sample section, it needs to be carried out in the box body of the frozen section machine.

[0003] At present, the working form of the frozen section machine in the section link mainly has two kinds, the first kind: using the anti-winding plate guide piece, every time taking the section, the anti-winding plate needs to be turned over, which is convenient for sticking the section on the glass slide, and the anti-winding plate needs to be turned over again when sectioning, the anti-winding plate is loose or occasionally contaminated, which affects the section effect, and the anti-winding plate needs to be adjusted and cleaned frequently, the second kind: brush guide piece, when sectioning, the brush is held by hand to guide the section to expand smoothly, so that the sectioned slice remains in the expanded state.

[0004] Compared with the winding plate guide piece, the brush guide piece is more time-saving and more efficient. However, when the brush guide piece is held by hand, the operator's arm is suspended in the inner box body, and since the hand has no support, the hand may be swollen due to long-term suspension, and the hand may be uncomfortable due to contacting the surrounding metal in the frozen environment. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a hand support subassembly, which can support the hand of the operator when the frozen section machine cuts the sample, on one hand, prevent the hand from being swollen due to long-term suspension, and on the other hand, prevent the hand from being uncomfortable due to contacting the surrounding metal in the low temperature of the frozen section machine.

[0006] The utility model further provides a frozen section machine.

[0007] According to the hand support subassembly of the utility model, the hand support subassembly can support the hand of the operator when the frozen section machine cuts the sample, on one hand, prevent the hand from being swollen due to long-term suspension, and on the other hand, prevent the hand from being uncomfortable due to contacting the surrounding metal in the low temperature of the frozen section machine.

[0008] According to the hand support subassembly of the utility model, the hand support subassembly can support the hand of the operator when the frozen section machine cuts the sample, on one hand, prevent the hand from being swollen due to long-term suspension, and on the other hand, prevent the hand from being uncomfortable due to contacting the surrounding metal in the low temperature of the frozen section machine.

[0009] According to some embodiments of the utility model, the upper surface of the hand support is formed in an arc-shaped concave surface, and the concave surface is used for supporting the hand; and / or, the upper surface of the hand support is provided with a soft material layer.

[0010] According to some embodiments of the present application, the connecting piece is provided with a mounting rod, one end of the mounting rod is connected with the hand support, and the other end of the mounting rod is rotationally connected with the connecting piece.

[0011] According to some embodiments of the present application, the connecting piece is provided with a mounting rod, one end of the mounting rod is connected with the hand support, and the other end of the mounting rod is rotationally connected with the connecting piece.

[0012] According to some embodiments of the present application, the connecting piece is provided with a mounting rod, one end of the mounting rod is connected with the hand support, and the other end of the mounting rod is rotationally connected with the connecting piece.

[0013] According to some embodiments of the present application, the connecting piece is provided with a mounting rod, one end of the mounting rod is connected with the hand support, and the other end of the mounting rod is rotationally connected with the connecting piece.

[0014] According to some embodiments of the present application, the connecting piece is provided with at least one first mounting part, the first mounting part and the mounting rod are arranged at intervals, and the first mounting part is used for detachable connection with the tool holder.

[0015] According to some embodiments of the present application, the hand support assembly further comprises a tool withdrawal assembly, the tool withdrawal assembly comprises a tool withdrawal piece, the connecting piece is provided with a sleeve, and the tool withdrawal piece can abut against the blade through the sleeve.

[0016] According to the freezing microtome of the second aspect of the present application, the freezing microtome comprises: a clamping assembly, which is used for clamping a sample; a cutting assembly, which comprises a tool holder and a blade, the tool holder is provided with a containing cavity for containing the blade, and the blade is used for cutting the sample on the clamping assembly; and a hand support assembly, which is detachably connected with the tool holder.

[0017] According to some embodiments of the present application, the hand support assembly is arranged on the left side of the tool holder.

[0018] Additional aspects and advantages of the present application will be apparent from the following description of the application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.

[0020] Figure 1 is a schematic view of one direction of a hand rest assembly according to the first aspect of the present application;

[0021] Figure 2 is a schematic view of another direction of a hand rest assembly according to the first aspect of the present application;

[0022] Figure 3 is an exploded view of a hand rest assembly according to the first aspect of the present application Figure 1 ;

[0023] Figure 4 is an exploded view of a hand rest assembly according to the first aspect of the present application Figure 2 ;

[0024] Figure 5 is an exploded view of a hand rest assembly according to the first aspect of the present application Figure 3 ;

[0025] Figure 6 is an exploded view of a hand rest assembly according to the first aspect of the present application Figure 4 ;

[0026] Figure 7 is a schematic view of a structure of a freezing microtome according to the second aspect of the present application;

[0027] Figure 8 is a partial schematic view A according to Figure 7 .

[0028] REFERENCE NUMERALS:

[0029] 100, freezing microtome;

[0030] 10, hand rest assembly; 11, connecting piece; 111, first mounting portion; 12, hand rest; 121, recess; 122, arc-shaped concave surface; 13, mounting rod; 131, first limiting portion; 14, rotating shaft; 15, rotating seat; 16, tool withdrawal assembly; 161, tool withdrawal piece; 162, sleeve; 163, reset piece; 17, fixing rod;

[0031] 20, cutting assembly; 21, tool holder;

[0032] 30. The clamping assembly;

[0033] 40. The box. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present application are described in detail below.

[0035] The cryostat can be used to make thin sections of various samples in the fields of medicine, biology and botany, material research and engineering material quality control. In order to quickly obtain the sections of the sample, it needs to be carried out in the box of the cryostat.

[0036] The brush is used to guide the section to be unfolded. When the cryostat is cutting the section, the operator can hold the brush to guide the section to be unfolded smoothly, so that the thin section is kept in an unfolded state. Compared with the unwinding plate, the brush is more time-saving and efficient. However, when the brush is held, the operator's arm is suspended in the box, and because the hand is not supported, the hand may be swollen for a long time, and the hand may be uncomfortable due to the contact with the metal around the cryostat in the frozen environment.

[0037] Therefore, the present application provides a hand support assembly 10. When the cryostat 100 is cutting the sample, the hand support assembly 10 can support the operator's hand, which can prevent the hand from being swollen for a long time and prevent the hand from being uncomfortable due to the contact with the metal around the cryostat 100 because of the low temperature.

[0038] The hand support assembly 10 according to the embodiments of the present application is described below with reference to the accompanying drawings. Figures 1-8 The hand support assembly 10 according to the embodiments of the present application is described below with reference to the accompanying drawings.

[0039] The length direction of the hand support assembly 10 is the length direction of the hand support assembly 10, Figures 1-6 The width direction of the hand support assembly 10 is the width direction of the hand support assembly 10. Figures 1-7 The left-right direction of the cryostat 100 is the left-right direction of the cryostat 100. Figure 7 Figure 8 The length direction of the hand support assembly 10 is the length direction of the hand support assembly 10,

[0040] As shown in Figure 1 Figure 2 The hand support assembly 10 includes a connecting piece 11 and a hand support 12. The connecting piece 11 is used to be detachably connected with the knife holder 21, and the hand support 12 is arranged on the knife holder 21 through the connecting piece 11. The hand support 12 is made of heat insulation material. The connecting piece 11 is detachably connected with the knife holder 21, so that the hand support assembly 10 is installed and fixed, and the hand support assembly 10 is detachably connected with the knife holder 21, which is convenient for installation and disassembly, and realizes replacement of accessories according to the use habit of the operator, and has good applicability.​​

[0041] Thus, the hand rest 12 is mounted on the knife holder 21 through the connecting piece 11, and the hand rest 12 provides a support for the hand to prevent the hand from being suspended for a long time to cause acid swelling.

[0042] In some embodiments, the hand rest 12 is made of a heat insulation material. Since the temperature inside the freezing microtome 100 is low, the operator's hand is located in the freezing microtome 100 for a long time during the sectioning process. The hand rest 12 made of a heat insulation material can prevent the hand from being in contact with the surrounding metal in the freezing environment and causing discomfort.

[0043] In combination Figures 1-6 As shown in the drawings, the upper surface of the hand rest 12 is formed as an arc-shaped concave surface 122, which is used to support the hand. That is, the operator's hand is placed on the hand rest 12, and the arc-shaped concave surface is more in line with the hand to provide better support for the hand. The arc-shaped concave surface 122 provides positioning and limiting effects for the hand. On the one hand, the arc-shaped concave surface 122 plays a positioning role when the operator's hand is placed on the hand rest 12. On the other hand, the arc-shaped concave surface 122 plays a limiting role when the operator's hand is placed on the hand rest 12 to avoid the hand from shaking and being in contact with the surrounding metal to cause discomfort during operation.

[0044] In some other embodiments, the upper surface of the hand rest 12 is provided with a soft material layer. The upper surface of the hand rest 12 is covered with a soft material layer, which has the characteristics of deformability and recoverability, and has a soft touch, so that the hand rest 12 is more skin-friendly when it is in contact with the operator's hand. The soft material layer is made of a soft material, which can be latex, rubber, or silicone.

[0045] In some embodiments, the connecting piece 11 is provided with a sliding piece, one side of the sliding piece is connected with the hand rest 12, and the other side of the sliding piece is slidingly connected with the connecting piece 11. That is, the sliding piece and the connecting piece 11 are slidingly connected to realize the position adjustment of the hand rest 12. The relative position of the sliding piece and the connecting piece 11 is adjusted to adjust the position of the hand rest 12, which is convenient for the operator to adjust the hand rest 12 as needed.

[0046] For example, in the width direction of the hand rest assembly 10, the sliding piece and the connecting piece 11 are slidingly connected, so that the sliding piece can slide along the width direction relative to the connecting piece 11, that is, the hand rest 12 can slide along the width direction relative to the connecting piece 11 to one side or the other side to avoid other components on the knife holder 21.

[0047] In some other embodiments, the connecting piece 11 is provided with a mounting rod 13, one end of the mounting rod 13 is connected with the hand rest 12, and the other end of the mounting rod 13 is rotatably connected with the connecting piece 11. Thus, the hand rest 12 can rotate relative to the connecting piece 11, thereby avoiding other components on the tool rest 21. Specifically, the side of the connecting piece 11 away from the tool rest 21 is provided with the mounting rod 13. When the hand rest 12 is mounted, the hand rest 12 is moved along the axial direction of the mounting rod 13 until the hand rest 12 is connected and fixed with the mounting rod 13. Thus, the hand rest 12 is mounted on the connecting piece 11. Even if the hand rest 12 is disassembled, the rotation of the hand rest 12 relative to the connecting piece 11 is achieved, thereby facilitating space avoidance.

[0048] In some other embodiments, as shown in Figures 3-6 , the mounting rod 13 and the connecting piece 11 are two independent components. The mounting rod 13 and the connecting piece 11 can be fixedly connected or rotatably connected. That is, the connection mode of the mounting rod 13 and the connecting piece 11 is not limited.

[0049] In some embodiments, the mounting rod 13 can be two. The two mounting rods 13 are spaced apart along the width direction of the hand rest 12, thereby ensuring that the hand rest 12 can be in a horizontal state and improving the connection reliability of the hand rest 12 and the mounting rod 13.

[0050] Further, the connecting piece 11 is provided with the mounting rod 13. One end of the mounting rod 13 is connected with the hand rest 12. The hand rest 12 is provided with a groove 121. The groove 121 is detachably connected with the mounting rod 13. Specifically, the lower portion of the hand rest 12 is provided with the groove 121 which is adapted to the mounting rod 13. The groove 121 is detachably connected with the mounting rod 13, so that the hand rest 12 can be disassembled from the mounting rod 13. This facilitates the disassembly and replacement of the hand rest 12 and facilitates the modular production of the hand rest 12, the mounting rod 13 and the connecting piece 11.

[0051] As shown in Figure 2 and Figure 3 , the hand rest 12 is provided with the groove 121. The mounting rod 13 is provided with a plurality of first limiting portions 131 which are spaced apart in the length direction of the mounting rod 13. The inner wall of the groove 121 is provided with a second limiting portion which selectively limits the cooperation with any one of the first limiting portions 131. Specifically, the groove 121 in the hand rest 12 is adapted to the mounting rod 13. The plurality of first limiting portions 131 are spaced apart in the length direction of the mounting rod 13. The second limiting portion limits the cooperation with any one of the first limiting portions 131. Thus, the hand rest 12 has a plurality of mounting positions. The position of the hand rest 12 is adjustable. Thus, the hand rest 12 can be suitable for different sizes of hands.

[0052] In combination with Figure 2 , Figure 3 , Figures 5-6As shown, the first limiting part 131 can be a limiting step, and the limiting step can be multiple, and the multiple limiting steps are arranged at intervals along the length direction of the mounting rod 13. The second limiting part is in limiting cooperation with different limiting steps, so that the hand rest 12 has different installation positions, and the hand rest 12 can be suitable for hands of different sizes.

[0053] As shown in the figure, Figure 5 The connecting piece 11 is provided with a mounting rod 13, one end of the mounting rod 13 is connected with the hand rest 12, and the hand rest assembly 10 further comprises a rotating shaft 14, and the hand rest 12 is rotatably connected with the connecting piece 11 through the rotating shaft 14. Specifically, the rotating shaft 14 can be rotatably connected with the connecting piece 11 and the mounting rod 13, so that the hand rest 12 can rotate relative to the connecting piece 11.

[0054] Alternatively, one of the connecting piece 11 and the mounting rod 13 is rotatably connected with the rotating shaft 14, and the other of the connecting piece 11 and the mounting rod 13 is fixedly connected with the rotating shaft 14, and the same can also achieve that the hand rest 12 is rotatably connected with the connecting piece 11.

[0055] For example, the rotating shaft 14 is rotatably connected with the connecting piece 11, and the mounting rod 13 is fixedly connected with the rotating shaft 14, so that the mounting rod 13 can rotate relative to the connecting piece 11, and the hand rest 12 can rotate relative to the connecting piece 11.

[0056] For another example, the rotating shaft 14 is rotatably connected with the mounting rod 13, and the rotating shaft 14 is fixedly connected with the connecting piece 11, so that the mounting rod 13 can also be rotatably connected with the connecting piece 11, and the hand rest 12 can rotate relative to the connecting piece 11.

[0057] The hand rest 12 can rotate relative to the connecting piece 11, so that the hand rest 12 can be rotated to a horizontal state or an inclined state or a vertical state. The hand rest 12 is in a natural state and is in the horizontal state, and can support the hands of the operator. The hand rest 12 is rotated to the vertical state or the inclined state, and can avoid other components on the tool rest 21.

[0058] As shown in the figure, Figure 8 The same side of the hand rest 12 on the tool rest 21 can be provided with other components, such as a tool holder locking handle (used for adjusting the position of the blade edge of the blade in the tool rest 21). When the hand rest 12 is rotated to the vertical state, the tool holder locking handle can be rotated and switched to a state of adjusting the position of the tool rest 21. After the tool rest 21 is adjusted to the position, the tool holder locking handle is rotated and switched to a locking state again. At this time, the position of the hand rest 12 in the horizontal state is avoided, and then the hand rest 12 is rotated to the horizontal state, which is used for supporting the hands of the operator.

[0059] According to Figure 5 and Figure 6As shown, the connecting piece 11 is provided with a rotating seat 15, and the rotating shaft 14 penetrates the rotating seat 15 and the mounting rod 13. That is, the rotating seat 15 protrudes from the connecting piece 11, the rotating shaft 14 is connected with the rotating seat 15, and the rotating seat 15 can be provided with a connecting hole, and the rotating shaft 14 penetrates the connecting hole to be connected with the rotating seat 15.

[0060] In addition, the connecting mode of the rotating shaft 14 with the rotating seat 15 and the mounting rod 13 includes two modes.

[0061] One: the rotating shaft 14 is rotatably connected with the rotating seat 15 and the mounting rod 13.

[0062] Two: one of the rotating seat 15 and the mounting rod 13 is rotatably connected with the rotating shaft 14, and the other of the rotating seat 15 and the mounting rod 13 is fixedly connected with the rotating shaft 14. For example, the rotating shaft 14 is fixedly connected with the rotating seat 15, and the rotating shaft 14 is rotatably connected with the mounting rod 13; or, the rotating shaft 14 is fixedly connected with the mounting rod 13, and the rotating shaft 14 is rotatably connected with the rotating seat 15.

[0063] Both of the two connecting modes can realize the rotatable connection of the mounting rod 13 with the connecting piece 11, that is, the hand rest 12 can rotate relative to the connecting piece 11, which is convenient for dismounting the hand rest 12 and avoiding other components on the tool rest 21.

[0064] Further, the hand rest assembly 10 further includes a fixing rod 17, one end of the fixing rod 17 is fixedly connected with the connecting piece 11, and the other end of the fixing rod 17 is provided with the rotating seat 15, and the rotating shaft 14 penetrates the rotating seat 15 and the mounting rod 13. That is, one end of the fixing rod 17 is fixedly connected with the connecting piece 11, the other end of the fixing rod 17 is connected with the rotating shaft 14, and the rotating shaft 14 penetrates the rotating seat 15 and the mounting rod 13, so that the mounting rod 13 can rotate relative to the connecting piece 11, that is, the hand rest 12 can rotate relative to the connecting piece 11, which is convenient for dismounting the hand rest 12 and avoiding other components on the tool rest 21.

[0065] Referring to Figures 2-6 As shown, the connecting piece 11 is provided with at least one first mounting portion 111, and the first mounting portion 111 is spaced apart from the mounting rod 13, and the first mounting portion 111 is used for detachable connection with the tool rest 21. Specifically, the first mounting portion 111 can be a first mounting hole, and a fastener can penetrate the first mounting hole to be detachably connected with the tool rest 21, so as to realize the detachable connection of the connecting piece 11 with the tool rest 21; the first mounting hole is spaced apart from the connecting positions of the mounting rod 13 and the connecting piece 11, that is, the first mounting portion 111 is spaced apart from the mounting rod 13.

[0066] Further, the first mounting hole can be two, and the two first mounting holes are spaced apart, and two fasteners penetrate the two first mounting holes respectively to be connected with the tool rest 21, so as to ensure the connection strength of the connecting piece 11 with the tool rest 21, thereby improving the installation reliability of the connecting piece 11.

[0067] In some embodiments, the connecting piece 11 is further provided with a second mounting portion, when the mounting rod 13 and the connecting piece 11 are two separate components, the fixing rod 17 can be fixedly connected with the connecting piece 11 through the second mounting portion. The second mounting portion can be a second mounting hole, the fixing rod 17 is arranged in the second mounting hole, and the fixing rod 17 is fixedly connected with the connecting piece 11, facilitating subsequent installation and fixation of the hand rest 12.

[0068] In combination Figures 3-6 As shown, the hand rest assembly 10 further comprises a tool withdrawal assembly 16, the tool withdrawal assembly 16 is arranged on the connecting piece 11, the tool withdrawal assembly 16 is arranged in a spaced manner with the hand rest 12, the tool withdrawal assembly 16 corresponds to the position of the blade on the tool holder 21, facilitating the tool withdrawal assembly 16 to withdraw the blade, facilitating the replacement or cleaning of the blade.

[0069] As shown, the tool withdrawal assembly 16 comprises a tool withdrawal piece 161, a sleeve 162 is arranged on the connecting piece 11, the tool withdrawal piece 161 can pass through the sleeve 162 and abut against the blade. Figure 6

[0070] In some embodiments, the sleeve 162 can be part of the structure of the connecting piece 11, that is, the sleeve 162 is integrated with the connecting piece 11, and the modular design facilitates production.

[0071] In some other embodiments, the sleeve 162 and the connecting piece 11 are two separate components, the sleeve 162 is fixedly connected with the connecting piece 11, which can be in the form of screwing, clamping or welding. The connecting piece 11 can be provided with a third mounting portion, the sleeve 162 is fixedly connected with the third mounting portion. The third mounting portion can be a third mounting hole, the sleeve 162 passes through the third mounting hole and is fixedly connected with the connecting piece 11.

[0072] As shown, the tool withdrawal piece 161 selectively abuts against the blade through the sleeve 162. That is, when the blade does not need to be replaced, the tool withdrawal piece 161 is in a natural state, at this time the tool withdrawal piece 161 does not abut against the blade. When the blade needs to be removed, the operator pushes the tool withdrawal piece 161 to move towards the blade until the tool withdrawal piece 161 abuts against the blade, and continues to push the blade to the other side of the tool holder 21, so that the blade is ejected from the side to be gripped by the operator, and then the tool withdrawal piece 161 is reset. Thus, the blade on the tool holder 21 can be replaced. Figure 5 In addition, the tool withdrawal piece 161 can be reset manually by the operator, or can be reset automatically by a reset piece 163.

[0073] As shown, the tool withdrawal piece 161 selectively abuts against the blade through the sleeve 162. That is, when the blade does not need to be replaced, the tool withdrawal piece 161 is in a natural state, at this time the tool withdrawal piece 161 does not abut against the blade. When the blade needs to be removed, the operator pushes the tool withdrawal piece 161 to move towards the blade until the tool withdrawal piece 161 abuts against the blade, and continues to push the blade to the other side of the tool holder 21, so that the blade is ejected from the side to be gripped by the operator, and then the tool withdrawal piece 161 is reset. Thus, the blade on the tool holder 21 can be replaced.

[0074] Figure 6 ​​As shown, the tool withdrawal assembly 16 further comprises a reset member 163 clamped between the tool withdrawal member 161 and the sleeve 162. The sleeve 162 is provided with two through holes at both ends in the left-right direction, the tool withdrawal member 161 passes through the two through holes, the reset member 163 is arranged between the inner walls of the sleeve 162 of the tool withdrawal member 161, one end of the reset member 163 abuts against the tool withdrawal member 161, the other end of the reset member 163 abuts against the end of the sleeve 162, and the reset member 163 is compressed when the tool withdrawal member 161 moves towards the blade; after the tool withdrawal is completed, the tool withdrawal member 161 is reset under the action of the reset member 163. The reset member 163 can be a spring.

[0075] In combination Figure 7 And Figure 8 As shown, the cryostat microtome 100 according to the second aspect of the present application can be a manual microtome, while in another embodiment, the cryostat microtome 100 can be an automatic microtome.

[0076] The cryostat microtome 100 can comprise a housing 40 that can support and / or enclose internal components of the cryostat microtome 100. The housing 40 can have a closed space or chamber formed inside, and other components of the cryostat microtome 100 can be installed inside the space or chamber.

[0077] The cryostat microtome 100 comprises a clamping assembly 30 for clamping a sample, facilitating the cutting assembly 20 to cut the sample to obtain a slice of the sample.

[0078] In order to facilitate the observation of the sample during the cutting operation, the housing 40 can further comprise a light source, which can be specifically above the clamping assembly 30. The light source is configured to irradiate the sample from above, so that the user can more clearly see the cutting condition of the sample during the cutting operation.

[0079] For example, the sample can be a biological tissue taken from the body and embedded in an embedding agent after being frozen. The tissue can include animal tissues such as fat, myoma, cartilage or liver, and can also be plant tissue.

[0080] The cryostat microtome 100 comprises a cutting assembly 20, which comprises a blade holder 21 and a blade. The blade holder 21 is provided with a receiving cavity for accommodating the blade, and the blade is used to cut the sample on the clamping assembly 30. That is, the cutting assembly 20 can comprise a cutting member such as a knife or a blade, and the blade can be used to cut the sample. When the blade cuts, the surface of the sample can be aligned substantially parallel to the blade to ensure that the slice of the sample is uniform in thickness.

[0081] The freezing microtome 100 further comprises a hand support assembly 10, which is detachably connected with the knife holder 21. When the freezing microtome 100 cuts the sample, the hand support 12 can support the hand of the operator when the freezing microtome 100 cuts the sample, on the one hand, preventing the hand from swelling due to long-term suspension, and on the other hand, preventing the hand from being uncomfortable due to the low temperature of the freezing microtome 100 and the contact with the surrounding metal.

[0082] In combination Figure 7 And Figure 8 As shown in FIGS. 1 and 2, the hand support assembly 10 is arranged on the left side of the knife holder 21. Generally, the operator cuts the sample with the left hand, so that the hand support assembly 10 is arranged on the left side of the knife holder 21, which is convenient for the operator to operate.

[0083] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0084] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0085] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hand rest assembly for a cryostat, characterized in that, The utility model relates to a hand support assembly for a cutting tool, comprising: a connecting piece (11) for detachable connection with a tool holder (21); a hand support (12) arranged on the tool holder (21) by the connecting piece (11), the hand support (12) being made of a heat-insulating material.

2. A cryostat handpiece assembly according to claim 1, wherein, The upper surface of the hand support (12) is formed with an arc-shaped concave surface (122) for supporting a hand; and / or, The upper surface of the hand support (12) is provided with a soft material layer.

3. A cryostat handpiece assembly according to claim 1, wherein, The connecting piece (11) is provided with a mounting rod (13), one end of the mounting rod (13) being connected with the hand support (12), and the other end of the mounting rod (13) being rotatably connected with the connecting piece (11); Or, the connecting piece (11) is provided with a sliding piece, one side of the sliding piece being connected with the hand support (12), and the other side of the sliding piece being slidably connected with the connecting piece (11).

4. A cryostat handpiece assembly according to claim 1, wherein, The connecting piece (11) is provided with a mounting rod (13), one end of the mounting rod (13) being connected with the hand support (12), and the hand support (12) is provided with a groove (121), the groove (121) being detachably connected with the mounting rod (13); And / or, the connecting piece (11) is provided with a mounting rod (13), one end of the mounting rod (13) being connected with the hand support (12), the hand support (12) is provided with a groove (121), and the mounting rod (13) is provided with a plurality of first limiting portions (131) arranged at intervals in the length direction of the mounting rod (13), and the inner wall of the groove (121) is provided with a second limiting portion, the second limiting portion selectively limiting with one of the first limiting portions (131).

5. A cryostat handpiece assembly according to claim 1, wherein, The connecting piece (11) is provided with a mounting rod (13), one end of the mounting rod (13) being connected with the hand support (12), The hand support assembly further comprises a rotating shaft (14), the hand support (12) being rotatably connected with the connecting piece (11) through the rotating shaft (14).

6. A cryostat handpiece assembly according to claim 5, wherein, The connecting piece (11) is provided with a rotating seat (15), the rotating shaft (14) penetrating through the rotating seat (15) and the mounting rod (13); or, The hand support assembly (10) further comprises a fixing rod (17), one end of the fixing rod (17) being fixedly connected with the connecting piece (11), and the other end of the fixing rod (17) being provided with a rotating seat (15), the rotating shaft (14) penetrating through the rotating seat (15) and the mounting rod (13).

7. A cryostat handpiece assembly according to claim 3, wherein, The connecting piece (11) is provided with at least one first mounting portion (111), the first mounting portion (111) and the mounting rod (13) being arranged at intervals, and the first mounting portion (111) being used for detachable connection with the tool holder (21).

8. A cryostat handpiece assembly according to claim 1, wherein, Further comprising: a tool withdrawal assembly (16) comprising a tool withdrawal piece (161), the connecting piece (11) being provided with a sleeve (162), and the tool withdrawal piece (161) being capable of abutting against a tool blade through the sleeve (162).

9. A cryostat comprising: Including: a clamping assembly (30) for clamping a sample; A cutting assembly (20) comprising: a tool holder (21) provided with a receiving cavity for receiving a tool bit (22) for cutting a sample on a clamping assembly (30); and a hand rest assembly (10) according to any one of claims 1-8, detachably connected to the tool holder (21). The hand rest assembly (10) is arranged on the left side of the tool holder (21).

10. The cryostat of claim 9, wherein, The hand rest assembly (10) is arranged on the left side of the tool holder (21).

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