CN219319911U

CN219319911U - Portable slide liquid feeding device

Info

Publication number: CN219319911U
Application number: CN202320136197.6U
Authority: CN
Inventors: 姜刚录; 陈永亮; 周安民
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-07-07
Anticipated expiration: 2033-01-12

Abstract

The utility model discloses a portable slide liquid adding device, which comprises a base, a power supply assembly and a liquid dropping assembly, wherein the base is provided with a heating area, the heating area is provided with a heating structure, and the heating area is used for placing a slide so as to heat and dry a specimen on the slide through the heating structure; the power supply assembly is arranged on the base and is electrically connected with the heating structure; the dropping assembly is arranged on the base, and the dropping group comprises a dropping needle head which is used for enabling liquid drops to be contacted with the slide or a specimen on the slide. The technical scheme of the utility model can promote the portability of the slide liquid adding device so as to be convenient for use in small-demand or temporary working scenes.

Description

Portable slide liquid feeding device

Technical Field

The utility model relates to the field of biological tissue specimen processing equipment, in particular to a portable slide liquid adding device.

Background

The existing cell specimen staining machines are mostly large-capacity. The equipment can improve the working efficiency, but has larger volume, is generally applied to a large laboratory, has fixed position, has certain requirements on places and environments, and is not suitable for small laboratories, small hospitals or temporary working places.

Disclosure of Invention

The utility model mainly aims to provide a portable slide feeding device, which aims to improve the portability of the slide feeding device so as to be convenient for use in a small-demand or temporary working scene.

In order to achieve the above object, the present utility model provides a portable slide feeding device, comprising:

the base is provided with a heating zone, the heating zone is provided with a heating structure, and the heating zone is used for placing a slide so as to heat and dry a specimen on the slide through the heating structure;

the power supply assembly is arranged on the base and is electrically connected with the heating structure; and

the dropping assembly is arranged on the base and comprises a dropping needle head, and the dropping needle head is used for enabling liquid drops to be contacted with the slide or a specimen on the slide.

Optionally, the base is equipped with installation cavity and mounting hole, the mounting hole is located the base upper surface, and with the installation cavity intercommunication, the mounting hole department is equipped with the heat-conducting plate, heating structure install in the installation cavity, and with the heat-conducting plate heat conduction is connected, the upper surface of heat-conducting plate forms the zone of heating.

Optionally, the heating structure further comprises a heating body, a temperature sensor and a controller electrically connected with the heating body and the temperature sensor, wherein the heating body and the temperature sensor are connected with the heat conducting plate in a heat conduction manner, and the temperature sensor is spaced from the heating body.

Optionally, the heating element is a stainless steel heating plate, a ceramic heating plate or an electric heating film; a heat conducting medium is arranged between the heating body and the heat conducting plate.

Optionally, the power supply assembly includes a rechargeable battery and a charging assembly, and the charging assembly is electrically connected with the rechargeable battery.

Optionally, the charging assembly includes a wireless charging receiving coil, and the wireless charging receiving coil is electrically connected with the rechargeable battery; alternatively, the charging assembly includes a charging connector that electrically connects the rechargeable battery.

Optionally, the dropping subassembly includes stock solution container, suction pump and dropping syringe needle, the suction inlet of suction pump with the stock solution container intercommunication, the liquid outlet of suction pump with the dropping syringe needle intercommunication, the dropping syringe needle interval is located the top of zone of heating, and towards the zone of heating sets up.

Optionally, the drip assembly further includes a driving mechanism, where the driving mechanism is mounted on the base and connected to the drip needle, so that the drip needle is driven by the driving mechanism to move between a drip position and an avoidance position, where the drip needle is located above the glass slide in the heating zone, so that the liquid drop on the drip needle contacts the glass slide or the specimen on the glass slide, and where the drip needle is far away from the heating zone.

Optionally, the actuating mechanism includes motor and drive assembly, the motor install in the base, drive assembly connect in between the motor with the drip syringe needle, the motor passes through drive assembly drive the drip syringe needle is along upper and lower direction or horizontal direction motion.

Optionally, the actuating mechanism includes motor and rotation piece, the motor install in the base, rotation piece rotate install in the base, and with the motor is connected, the one end that rotation piece kept away from the axis of rotation is equipped with the dropping syringe needle, the axis of rotation piece extends along upper and lower direction or horizontal direction.

Optionally, the base is provided with a limiting protrusion, and the limiting protrusion is enclosed on the outer side of the heating area and is used for limiting slide deflection on the heating area.

Optionally, the base is equipped with a plurality of zone of heating, each the interval sets up between the zone of heating, the base corresponds every the zone of heating all is equipped with one the heating structure, correspond every on the base the zone of heating all is equipped with one or more the dropping liquid syringe needle.

According to the technical scheme, the heating area with the heating structure and the power supply assembly are arranged on the base, so that the power supply assembly is electrically connected with the heating structure, when the device is used, after a slide carrying a cell specimen is placed in the heating area, the slide can be heated for a period of time through the heating structure, so that the cell specimen can be baked, then the staining agent can be dripped into the dried slide on the heating area through the dripping assembly, the rest is carried out for a period of time, and after the staining is completed, the slide can be taken out for observation. Compared with the equipment through hot air drying, through heating structure direct heating slide like this for slide liquid feeding device's structure is simpler, and the volume can be littleer, can promote slide liquid feeding device's portability, is convenient for use in the small or temporary work scene of demand.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a portable slide feeding apparatus according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the base of FIG. 1;

fig. 3 is a block diagram of a base and cover according to another embodiment of the utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Base seat	221	Suction port
11	Heat conducting plate	222	Liquid outlet
				111	Limiting convex part	23	Dropping liquid needle
12	Movable door	30	Heating structure
				121	Door handle	31	Heating element
20	Drip assembly	32	Temperature sensor
				21	Liquid storage container	40	Power supply assembly
22	Liquid suction pump	50	Cover shell

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a portable slide liquid adding device.

In the embodiment of the present utility model, as shown in fig. 1 to 3, the portable slide feeding device includes a base 10, a power supply assembly 40 and a drip assembly 20, the base 10 is provided with a heating zone, the heating zone is provided with a heating structure 30, and the heating zone is used for placing a slide so as to heat and dry a specimen on the slide through the heating structure 30; the power supply assembly 40 is arranged on the base 10, and the power supply assembly 40 is electrically connected with the heating structure 30; a drip assembly 20 is provided on the base 10, the drip assembly 20 comprising a drip needle 23, the drip needle 23 being adapted to contact a drop of liquid with the slide or a specimen on the slide.

Specifically, when in use, the glass slide carrying the cell specimen is placed in the heating zone, in order to prevent the cell specimen from shrinking and expanding, normal saline is generally dripped on the cell specimen, then the cell specimen is conveniently observed, redundant normal saline on the cell specimen is removed, then the cell specimen is dyed, at this time, the power supply assembly 40 supplies power to the heating structure 30 so as to enable the heating structure 30 to start to operate, after the temperature of the heating structure 30 rises, heat is conducted to the heating zone so as to enable the temperature of the glass slide to rise, thereby causing the moisture carried by the cell specimen on the glass slide to be evaporated, the baked cell specimen can be adsorbed on the glass slide to be fixed, at this time, a user can drip the cell specimen with the colorant through the drip needle 23 so as to dye the cell specimen, and after the cell specimen is dyed, the user can take the cell specimen for observation and research.

According to the technical scheme, the heating area with the heating structure 30 and the power supply assembly 40 are arranged on the base 10, so that the power supply assembly 40 is electrically connected with the heating structure 30, when the device is used, after a slide carrying a cell specimen is placed in the heating area, the slide can be heated for a period of time through the heating structure 30 to bake the cell specimen, then the dried slide on the heating area can be dripped with a coloring agent through the dripping needle 23, and then the device is kept stand for a period of time, and after the dyeing is completed, the slide can be taken out for observation. Compared with the equipment through hot air drying, through heating structure 30 direct heating slide like this for slide liquid feeding device's structure is simpler, and the volume can be littleer, can promote slide liquid feeding device's portability, is convenient for use in the small or temporary work scene of demand.

In some embodiments, the base 10 is provided with a mounting cavity and a mounting hole, the mounting hole is located on the upper surface of the base 10 and is communicated with the mounting cavity, the mounting hole is provided with a heat conducting plate 11, and the heating structure 30 is installed in the mounting cavity and is in heat conduction connection with the heat conducting plate 11, and the upper surface of the heat conducting plate 11 forms a heating area. The heating structure 30 is arranged in the mounting cavity and is separated by the heat conducting plate 11, so that the heating structure 30 can be prevented from being exposed, and the risk of liquid inlet short circuit of the heating structure 30 is reduced. The heat conductive plate 11 may be a metal plate, such as an aluminum plate. The heat conductive plate 11 may be a ceramic plate.

In other embodiments, the heat generating portion of the heating structure 30 is mounted above the base 10 to form a heating zone, and the slide is mounted directly on the heat generating portion. Specifically, the heating structure 30 directly heats the slide glass with a better heating effect and a faster heat conduction compared with the mode of using the heat-conducting plate 11.

In some embodiments, the heating structure 30 further includes a heating body 31, a temperature sensor 32, and a controller electrically connecting the heating body 31 and the temperature sensor 32, the heating body 31 and the temperature sensor 32 being both thermally conductively connected to the heat conductive plate 11, the temperature sensor 32 being spaced apart from the heating body 31. Specifically, the controller controls the heating body 31 to heat in operation, and changes the temperature of the heating body 31 by adjusting the output power of the power supply assembly 40, the temperature sensor 32 detects the temperature of the heat-conducting plate 11 and then transmits data to the controller, and when the temperature of the heat-conducting plate 11 exceeds the set temperature value or is lower than the set temperature value, the controller maintains the temperature of the heat-conducting plate 11 at the set temperature value by adjusting the output power of the power supply to make the heat-conducting plate 11 constant temperature to heat the cell specimen. The set temperature value can be adaptively adjusted according to the actual product design or specimen requirement, which is not particularly limited in the application. For example, the set temperature value may be set to 60 ℃. The set temperature value may also be set to 58 ℃, 59 ℃, 61 ℃, 62 ℃ or the like.

In some embodiments, the heating element 31 is a stainless steel heating plate, a ceramic heating plate, or an electrothermal film. Specifically, the stainless steel heating plate is lower in cost as the heating body 31, and stainless steel is cheaper in price; the ceramic heating plate is made of insulating materials, so that the ceramic heating plate is safer; the electrothermal film has long service life and rapid heating. Wherein the ceramic heating plate is divided into a PTC ceramic heating element 31 and an MCH ceramic heating element 31, the surface temperature of the PTC ceramic heating element 31 can be controlled constantly, and the dry burning phenomenon can be prevented; the heating wire is arranged in the MCH ceramic heating body 31, and compared with the PTC ceramic heating body 31, the heating wire is more energy-saving.

In some embodiments, a heat-conducting medium is provided between the heat-generating body 31 and the heat-conducting plate 11. Specifically, the heat-conducting medium fills the gap between the heat-generating body 31 and the heat-conducting plate 11, so that heat is better conducted from the heat-generating body 31 to the heat-conducting plate 11.

In some embodiments, the charging assembly includes a rechargeable battery and a charging assembly electrically connected to the rechargeable battery. Specifically, when the rechargeable battery is exhausted, the rechargeable battery can be charged by the charging assembly, so that the power supply assembly 40 can be recycled without replacing a new battery. In other embodiments, the power assembly 40 includes a power cord for connection to a power outlet.

The specific structure of the charging assembly may be varied, for example, in some embodiments the charging assembly includes a wireless charging receiving coil electrically connected to a rechargeable battery. Specifically, the wireless mode of charging is comparatively convenient, compares with the charging mode that charges the joint, and wireless charging does not need to worry that liquid gets into the mouth that charges, can play the water-proof effects, uses wireless receiving coil that charges moreover to need not to charge the repeated plug of line, and life is longer.

In other embodiments, the charging assembly includes a charging connector that electrically connects the rechargeable battery. Specifically, the charging mode of the charging connector is relatively efficient, and the cost of the charging connector is relatively low compared with a charging mode using a wireless charging receiving coil.

In some embodiments, the drip assembly 20 includes a reservoir 21, a liquid suction pump 22, and a drip needle 23, a suction port 221 of the liquid suction pump 22 is in communication with the reservoir 21, a liquid outlet 222 of the liquid suction pump 22 is in communication with the drip needle 23, and the drip needle 23 is spaced above the heating zone and disposed toward the heating zone. Specifically, in use, the suction port 221 of the suction pump 22 sucks the staining solution in the solution storage container 21, the liquid outlet 222 injects the sucked solution into the drip needle 23, and the drip needle 23 drops the staining solution onto the glass slide in the heating zone, so that the cell specimen on the glass slide absorbs the staining solution to be stained. The liquid storage container 21 can be arranged outside the base 10 or in the installation cavity, and when the liquid storage container 21 is arranged outside the base 10, the liquid storage container 21 can be more conveniently filled with the dyeing liquid; when setting up in the installation intracavity, occupation space is littleer, the volume is littleer for portable slide liquid feeding device, and the portability of device is better.

In some embodiments, the drip assembly 20 further includes a drive mechanism mounted to the base 10 and coupled to the drip needle 23 for driving the drip needle 23 by the drive mechanism between a drip position, in which the drip needle 23 is positioned over the slide in the heating zone, to cause drops on the drip needle 23 to contact the slide or specimen on the slide, and an avoidance position, in which the drip needle 23 is remote from the heating zone. Specifically, the drip assembly 20 further includes a control assembly, and in actual use, when dripping onto the dried slide, the amount of liquid that the drip needle 23 drips onto the slide cannot be excessive, and the liquid drop is typically 3 microliters to 5 microliters, and because the liquid drop volume is too small, the liquid drop is adsorbed at the needle of the drip needle 23 due to surface tension, and cannot drip onto the slide by gravity. The driving mechanism is arranged on the drip needle 23, and the control assembly controls the driving mechanism to drive the drip needle 23 to be close to the cell specimen on the glass slide until the drip touches the cell specimen, so that the drip drops can be dropped on the glass slide to dye the cell specimen. Thereby realizing automatic dyeing. In other embodiments, the drip needle 23 is connected with the liquid pump through a hose, and the drip needle 23 is detachably mounted on the base 10, so that manual drip is realized.

In some embodiments, the drive mechanism includes a motor mounted to the base 10 and a transmission assembly coupled between the motor and the drip needle 23, the motor driving the drip needle 23 in an up-down direction via the transmission assembly. Specifically, the transmission assembly comprises a screw rod, a nut arranged on the screw rod and a mounting piece arranged on the nut, and the drip needle 23 is arranged on the mounting piece. The screw rod is vertically arranged on the base 10, the nut is slidably arranged on the base 10, the screw rod is connected with a rotating shaft of the motor, and the screw rod rotates under the control of the motor to drive the nut to slide up and down in a reciprocating manner so as to enable the drip needle 23 to displace between a drip position and an avoiding position. When the drip needle 23 is positioned at the drip position, the drip from the needle tip of the drip needle 23 just contacts the slide or the cell specimen on the slide, so that the drip falls on the slide to dye the cell specimen. The avoiding position is spaced above the dripping position and the dripping position, when the dripping needle 23 is positioned at the avoiding position, the dripping needle 23 is spaced from the slide, so that the slide and the cell specimen on the slide are avoided, and the operation of a user is not influenced.

In some embodiments, the drive mechanism includes a motor mounted to the base 10 and a transmission assembly coupled between the motor and the drip needle 23, the motor driving the drip needle 23 through the transmission assembly to move in a horizontal direction. Specifically, the transmission assembly comprises a screw rod, a nut arranged on the screw rod and a mounting piece arranged on the nut, and the drip needle 23 is arranged on the mounting piece. The screw rod is horizontally arranged on the base 10, the nut is slidably arranged on the base 10, the screw rod is connected with a rotating shaft of the motor, and the screw rod rotates under the control of the motor to drive the nut to horizontally reciprocate, so that the drip needle 23 is displaced between a drip position and an avoiding position. When the dropping needle 23 is positioned at the dropping position, the liquid suction pump 22 starts to suck, the staining solution is gathered at the needle point of the dropping needle 23, and when the solution amount of the staining solution just reaches the requirement, the dropping solution at the needle point of the dropping needle 23 contacts with a glass slide or a cell specimen on the glass slide, and the cell specimen is stained. The avoiding position is laterally spaced from the dripping position, and when the dripping needle 23 is positioned at the avoiding position, the dripping needle 23 is spaced from the slide, so that the slide and the cell specimen on the slide are avoided, and the operation of a user is not influenced. Since the drip assembly 20 is set to move horizontally, one drip needle 23 can drip a plurality of slides, only one drip needle 23 is needed.

In other embodiments, the drive assembly includes a gear and a slider having a rack, the slider being slidably mounted on the base 10, the gear being engaged with the rack of the slider and connected to a motor, and the drip needle 23 being mounted on the slider.

In other embodiments, the driving mechanism comprises a motor and a rotating member, the motor is mounted on the base 10, the rotating member is rotatably mounted on the base 10 and is connected with the motor, one end of the rotating member away from the rotation axis is provided with a drip needle 23, and the rotation axis of the rotating member extends along the up-down direction. Specifically, when the device works, the motor drives the rotating member to rotate so as to enable the drip needle 23 to rotate, displacement is carried out between the drip position and the avoiding position, when the drip needle 23 is located at the drip position, the liquid suction pump 22 starts to suck, the dyeing liquid is gathered at the needle point of the drip needle 23, and when the liquid amount of the dyeing liquid just reaches the requirement, the drip at the needle point of the drip needle 23 can touch the glass slide, so that the drip falls on the glass slide, and the cell specimen is dyed. The avoiding position is spaced from the dripping position at the side of the dripping position, and when the dripping needle 23 is positioned at the avoiding position, the dripping needle 23 is spaced from the slide, so that the slide and the cell specimen on the slide are avoided, and the operation of a user is not influenced. Because the rotation axis of the rotating member extends in the up-down direction, the drip assembly 20 moves horizontally, and one drip needle 23 can drip a plurality of slides, only one drip needle 23 is needed.

In other embodiments, the driving mechanism comprises a motor and a rotating member, the motor is mounted on the base 10, the rotating member is rotatably mounted on the base 10 and is connected with the motor, one end of the rotating member away from the rotation axis is provided with a drip needle 23, and the rotation axis of the rotating member extends along the horizontal direction. Specifically, during operation, the motor drives the rotating member to rotate so as to enable the drip needle 23 to rotate and to displace between the drip position and the avoiding position, and when the drip needle 23 is located at the drip position, the drip at the needle point of the drip needle 23 just touches the glass slide so that the drip falls on the glass slide to dye the cell specimen. The avoiding position is spaced above the dripping position and the dripping position, when the dripping needle 23 is positioned at the avoiding position, the dripping needle 23 is spaced from the slide, so that the slide and the cell specimen on the slide are avoided, and the operation of a user is not influenced.

In some embodiments, the base 10 is provided with a mounting opening that communicates with the mounting cavity, and the mounting opening is provided with a movable door 12 for opening or closing the mounting opening, the movable door 12 being provided with a door handle 121. Specifically, the liquid storage container 21 in the installation cavity can be replaced through the installation opening, or liquid can be injected towards the liquid storage container 21 through the installation opening, or when the parts in the installation cavity are failed, the installation opening can be replaced or maintained through the installation opening, the movable door 12 is arranged to enable the installation opening to be conveniently opened or closed, and when the installation opening is closed, the parts in the installation cavity are protected.

In some embodiments, the base 10 is provided with a cover 50, and the cover 50 is detachably covered on the base 10. Specifically, when the portable slide filling device is not used, the cover shell 50 is covered on the base 10, the cover shell 50 simultaneously seals the heating area and the drip needle 23, protects the heating area and the drip needle 23, prevents dust and liquid from falling on the heating area and the drip needle 23, and can be directly taken down when in use without additionally cleaning the heating area and the drip needle 23.

In some embodiments, the reservoir 21 is removably mounted to the base 10. Specifically, the detachable arrangement of the liquid storage container 21 allows the portable slide filling device to conveniently replace the liquid storage container 21 containing different staining solutions.

In some embodiments, the base 10 is provided with a limiting protrusion 111, and the limiting protrusion 111 is enclosed on the outer side of the heating area to limit the slide deviation on the heating area. Specifically, after the slide is mounted in the heating zone, the limit projection 111 abuts the peripheral side of the slide to prevent the slide from being shifted in position during the operation of the apparatus, thereby affecting the normal operation of the apparatus. Wherein, spacing convex part 111 includes three spacing sand grip, and three spacing sand grip surrounds the formation mounting groove and will slide spacing to three spacing sand grip respectively with the three side butt of slide, in order to spacing the slide. In addition, in other embodiments, the limit protrusion 111 is annular, and the slide is mounted in the annular hole of the annular limit protrusion 111.

In some embodiments, the base 10 is provided with a plurality of heating zones, each heating zone being spaced apart, and the base 10 is provided with a heating structure 30 corresponding to each heating zone. Specifically, the arrangement of the heating structures 30 corresponding to the heating zones enables the temperature of the heating zones to be controlled independently, and especially when the heating zones are provided with slides carrying different cell specimens, the proper heating temperature of each slide is different, and different heating zones can heat different slides to different temperatures, so that the slides can be heated better. Optionally, one or more than one drip needle 23 is arranged on the base 10 corresponding to each heating zone, and when a plurality of cell specimens are carried on a slide, one drip needle 23 is arranged on the base 10 corresponding to each specimen, so that the plurality of drip needles 23 respectively drip corresponding to the plurality of cell specimens at the same time, and the dyeing efficiency is improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A portable slide feeding device, comprising:

the dropping assembly is arranged on the base and comprises a dropping needle head which is used for enabling liquid drops to be contacted with the slide or a specimen on the slide.

2. The portable slide feeding apparatus as claimed in claim 1, wherein the base is provided with a mounting cavity and a mounting hole, the mounting hole is located on the upper surface of the base and is communicated with the mounting cavity, a heat conducting plate is disposed at the mounting hole, the heating structure is installed in the mounting cavity and is in thermal conduction connection with the heat conducting plate, and the upper surface of the heat conducting plate forms the heating area.

3. The portable slide feeding apparatus according to claim 2, wherein the heating structure further comprises a heating element, a temperature sensor, and a controller electrically connecting the heating element and the temperature sensor, both of which are thermally conductively connected to the heat conductive plate, the temperature sensor being spaced apart from the heating element.

4. The portable slide feeding apparatus according to claim 3, wherein the heating element is a stainless steel heating plate, a ceramic heating plate or an electrothermal film; a heat conducting medium is arranged between the heating body and the heat conducting plate.

5. The portable slide feeding apparatus of claim 1, wherein the power supply assembly includes a rechargeable battery and a charging assembly, the charging assembly being electrically connected to the rechargeable battery.

6. The portable slide feeding apparatus of claim 5, wherein the charging assembly includes a wireless charging receiving coil electrically connected to the rechargeable battery; alternatively, the charging assembly includes a charging connector electrically connected to the rechargeable battery.

7. The portable slide feeding apparatus according to claim 1, wherein the drip assembly comprises a liquid storage container, a liquid suction pump and a drip needle, a suction port of the liquid suction pump is communicated with the liquid storage container, a liquid outlet of the liquid suction pump is communicated with the drip needle, and the drip needle is positioned above the heating area at intervals and is arranged towards the heating area.

8. The portable slide feeding apparatus according to claim 7, wherein the drip assembly further comprises a drive mechanism mounted to the base and coupled to the drip needle for driving the drip needle between a drip position, in which the drip needle is positioned above the slide in the heating zone, and an avoidance position, in which the drip needle is spaced away from the heating zone, such that a drop of liquid on the drip needle contacts the slide or a specimen on the slide.

9. The portable slide feeding apparatus according to claim 8, wherein the driving mechanism includes a motor and a transmission assembly, the motor is mounted on the base, the transmission assembly is connected between the motor and the drip needle, and the motor drives the drip needle to move in an up-down direction or a horizontal direction through the transmission assembly; or,

the driving mechanism comprises a motor and a rotating piece, the motor is installed on the base, the rotating piece is rotatably installed on the base and is connected with the motor, one end, far away from the rotating axis, of the rotating piece is provided with the liquid dropping needle head, and the rotating axis of the rotating piece extends along the up-down direction or the horizontal direction.

10. The portable slide feeding apparatus according to any one of claims 1 to 9, wherein the base is provided with a limit projection, the limit projection being enclosed outside the heating area for limiting slide displacement on the heating area;

and/or the base is provided with a plurality of heating areas, each heating area is arranged at intervals, the base is provided with one heating structure corresponding to each heating area, and one or more than one liquid dropping needle heads are arranged on the base corresponding to each heating area.