CN220159029U - Microneedle, microneedle probe assembly and radio frequency instrument - Google Patents

Abstract

The utility model discloses a microneedle, which comprises a microneedle body, wherein at least 2 needle heads are arranged on the microneedle body, and each needle head is formed by upwards protruding the top surface of the microneedle body. The utility model also discloses a microneedle probe assembly, which comprises a shell, a circuit board and microneedles, wherein an inner cavity is formed in the shell, the top of the inner cavity penetrates through the top surface of the shell, a needle outlet is formed in the top surface of the shell, the microneedle bodies can move in or out of the needle outlet on the shell, the number of the microneedle bodies is at least 1, the number of the needle outlets on the shell is the same as and corresponds to the number of the microneedle bodies one by one, the circuit board is fixed in the inner cavity of the shell, and the microneedle bodies penetrate through the needle outlet of the shell and can be electrically connected with the circuit board. The utility model also discloses a radio frequency instrument which comprises the microneedle probe assembly. The utility model can be used conveniently, and can be beneficial to popularization of the micro-needle, thereby meeting the use requirement.

Description

Microneedle, microneedle probe assembly and radio frequency instrument

Technical Field

The utility model relates to a medical beauty treatment instrument, in particular to a microneedle, a microneedle probe assembly and a radio frequency instrument.

Background

In the radio frequency instruments popular in the market, the micro-needle on the micro-needle probe assembly is 16-needle type or 32-needle type, the micro-needle is sharp like an embroidery needle, and when an operator performs cosmetic operation, the operator controls the operation force by feeling, so that the depth of the micro-needle entering the epidermis of a human body is controlled. However, the microneedles with the structure require a great deal of experience of operators, and beginners need repeated practice and repeated experience to meet the use requirements of the microneedles, so that the popularization of the microneedles is limited, the microneedles are widely used in beauty salons, thousands of households are difficult to enter, and the demands of common consumers are limited.

Disclosure of Invention

In order to overcome the defects in the prior art, one of the purposes of the utility model is to provide a microneedle which can be conveniently used, and further can be popularized, so that the use requirement is met.

It is a second object of the present utility model to provide a microneedle probe assembly.

It is a further object of the present utility model to provide a radio frequency apparatus.

One of the purposes of the utility model is realized by adopting the following technical scheme:

the microneedle comprises a microneedle body, wherein at least 2 needle heads are arranged on the microneedle body, and each needle head is formed by upwards protruding the top surface of the microneedle body.

Further, the longitudinal section of the needle head is trapezoid.

The second purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a microneedle probe assembly, includes casing, circuit board and microneedle, the inner chamber has been seted up on the casing, the top of inner chamber runs through the top surface of casing and is formed with the play needle mouth that is used for acceping the microneedle body at the top surface of casing, the microneedle body can go out the interior or play needle mouth outer motion of needle mouth on the casing, the quantity of microneedle body sets up to at least 1, the quantity of play needle mouth is the same and the one-to-one with the quantity of microneedle body on the casing, the circuit board is fixed in the inner chamber of casing, the play needle mouth of casing and can with circuit board electric connection are worn to establish to the microneedle body.

The micro needle comprises a micro needle body, a circuit board, a first elastic piece, a first needle holder, a first sleeve and a first elastic piece, wherein the first elastic piece is used for resetting the micro needle body, the first needle holder is electrically connected with the circuit board and penetrates through a needle outlet of the casing, a first mounting cavity is formed in the first needle holder, the first sleeve is sleeved in the first mounting cavity of the first needle holder, a first accommodating cavity is formed in the first sleeve, the first elastic piece is accommodated in the first accommodating cavity and is respectively connected with the micro needle body and the first sleeve, when the micro needle body is extruded by external force, the first elastic piece deforms, and the micro needle body can move into the first mounting cavity; when the microneedle body is not extruded by external force, the first elastic piece is deformed in a recovery mode so that the microneedle body can move outside the first mounting cavity to reset.

Further, the micro-needle host comprises pins which are used for being electrically connected with the micro-needle host so as to supply power for the circuit board.

Further, the device further comprises a cover plate, wherein the bottom of the inner cavity penetrates through the bottom surface of the shell, a mounting opening is formed in the bottom surface of the shell, the cover plate is mounted in the mounting opening of the shell to seal the inner cavity, movable through holes are formed in the cover plate, and the pins can move in the movable through holes of the cover plate.

Further, the stitch comprises a stitch body, a second needle holder, a second sleeve and a second elastic piece for resetting the stitch body, wherein the second needle holder is arranged in a movable through hole of the cover plate in a penetrating mode, a second installation cavity is formed in the second needle holder, the second sleeve is sleeved in the second installation cavity of the second needle holder, a second accommodating cavity is formed in the second sleeve, and the second elastic piece is accommodated in the second accommodating cavity and is respectively connected with the micro needle body and the second sleeve; when the stitch body is not extruded by external force, the second elastic piece is deformed in a recovery mode so that the microneedle body can move outside the second installation cavity to reset.

Further, the sealing device also comprises a sealing ring, wherein a sealing groove is formed on the outer surface of the shell, which is recessed towards the inner surface of the inner cavity, a mounting surface is arranged on the inner surface of the inner cavity of the shell, the sealing groove and the mounting surface are respectively positioned on two sides of the shell and correspond to each other in position, the sealing ring is arranged in the sealing groove of the shell, a side surface is arranged on the peripheral side of the cover plate, and the side surface of the cover plate is attached to the mounting surface of the shell.

Further, the device also comprises a magnet, wherein the magnet is fixed in the inner cavity of the shell.

The third purpose of the utility model is realized by adopting the following technical scheme:

a radio frequency instrument comprising the microneedle probe assembly.

Compared with the prior art, the utility model has the beneficial effects that:

through making the top surface of microneedle body upwards protruding form 2 at least syringe needles, and then optimized the structure of microneedle, increased the syringe needle of microneedle body and human epidermis's area of contact, do benefit to the degree of depth that the syringe needle of operator control microneedle body got into human epidermis to make the microneedle can facilitate the use, the experience requirement to the operator is lower, can do benefit to the popularization of microneedle, satisfies the user demand.

Drawings

FIG. 1 is a schematic view of a microneedle probe assembly according to the present utility model;

FIG. 2 is a schematic view of the microneedle probe assembly of FIG. 1 at another angle;

FIG. 3 is one of the cross-sectional views of the microneedle probe assembly of FIG. 1;

FIG. 4 is a second cross-sectional view of the microneedle probe assembly of FIG. 1;

fig. 5 is a schematic view of the structure of the microneedle probe assembly of fig. 1.

In the figure: 1. a microneedle body; 2. a needle; 3. a first spring pin seat; 4. a first elastic member; 5. a first sleeve; 6. a housing; 7. a circuit board; 8. a cover plate; 9. a stitch body; 10. a second spring pin seat; 11. a second elastic member; 12. a second sleeve; 13. a magnet; 14. a seal ring; 15. sealing the groove.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means one or more, plural means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1-5, a microneedle according to a preferred embodiment of the present utility model includes a microneedle body 1, at least 2 needles 2 are disposed on the microneedle body 1, and each needle 2 is formed by upwardly protruding a top surface of the microneedle body 1.

On the basis of the structure, at least 2 needles 2 are formed by upwards protruding the top surface of the microneedle body 1, so that the structure of the microneedle is optimized, the contact area between the needles 2 of the microneedle body 1 and the human epidermis is increased, the depth of the needles 2 of the microneedle body 1 entering the human epidermis is controlled by an operator, the microneedle can be used conveniently, the experience requirement on the operator is lower, the popularization of the microneedle can be facilitated, and the use requirement is met.

As a preferred embodiment of the utility model, it may also have the following additional technical features:

in the specific implementation, the micro-needle is set as an insulating micro-needle, namely the needle head 2 and/or the micro-needle body 1 have insulating effects, and preferably, the micro-needle is set as a gold insulating micro-needle, namely the needle head 2 and/or the micro-needle body 1 are made of gold, so that the insulating performance of the micro-needle is improved. In other embodiments, the microneedle body 1 is made of a conductive metal, and its surface is covered with an insulating layer, which is provided as a plastic coating covering the needle head 2 and/or the surface of the microneedle body 1.

In this embodiment, the needle 2 is tapered in shape, and preferably the longitudinal section of the needle 2 is trapezoidal. Thus, the contact area between the needle head 2 of the micro needle body 1 and the human epidermis can be increased, and the depth of the needle head 2 of the micro needle body 1 entering the human epidermis can be controlled by an operator.

In the concrete implementation, the needle heads 2 on the micro needle body 1 are micron-sized needle heads 2, the longitudinal section of each needle head 2 is a trapezoid with the height of 0.2MM, and the tip size is set to be 0.06 multiplied by 0.06MM, so that the contact area between the needle heads 2 of the micro needle body 1 and the human epidermis can be effectively increased, and the depth of the needle heads 2 of the micro needle body 1 entering the human epidermis can be controlled by an operator more conveniently.

In the microneedle body 1 of the present embodiment, the number of the needles 2 is 12, which is favorable for further increasing the contact area between the needles 2 of the microneedle body 1 and the epidermis of the human body, and is favorable for an operator to control the depth of the needles 2 of the microneedle body 1 entering the epidermis of the human body. Of course, the number of needles 2 may be specifically set according to actual needs.

In addition, the preferred embodiment of the utility model also provides a microneedle probe assembly, which comprises a shell 6, a circuit board 7 and microneedles, wherein an inner cavity is formed in the shell 6, the top of the inner cavity penetrates through the top surface of the shell 6, a needle outlet for accommodating the microneedle bodies 1 is formed in the top surface of the shell 6, the microneedle bodies 1 can move in or out of the needle outlet on the shell 6, the number of the microneedle bodies 1 is multiple, the number of the needle outlets on the shell 6 is the same as the number of the microneedle bodies 1 and corresponds to the number of the microneedle bodies 1 one by one, the circuit board 7 is fixed in the inner cavity of the shell 6, and the microneedle bodies 1 penetrate through the needle outlet of the shell 6 and can be electrically connected with the circuit board 7.

Therefore, the top surface of each microneedle body 1 is upwards protruded to form at least 2 needles 2, so that the structure of each microneedle is optimized, the contact area between the needles 2 of each microneedle body 1 and the human epidermis is increased, the depth of the needles 2 of the microneedle bodies 1 entering the human epidermis is controlled by an operator, the microneedles can be used conveniently, the experience requirements on the operator are lower, the popularization of the microneedles can be facilitated, and the use requirements are met. And each microneedle body 1 is respectively penetrated through each needle outlet on the shell 6, and under the action of the circuit board 7, each microneedle body 1 can be externally connected with a microneedle host, the microneedle host provides radio frequency energy for each microneedle body 1, the radio frequency energy can be conducted to the needle heads 2 of each microneedle body 1, and then the needle heads 2 act on human epidermis to facilitate the human epidermis to obtain the beauty effect.

Specifically, the number of the microneedle bodies 1 is set to 32, and of course, the number of the microneedle bodies 1 may also be specifically set according to actual needs.

In this embodiment, the microneedle further includes a first needle holder 3, a first sleeve 5, and a first elastic member 4 for resetting the microneedle body 1, where the first needle holder 3 is electrically connected with the circuit board 7 and penetrates through a needle outlet of the housing 6, a first mounting cavity is formed on the first needle holder 3, the first sleeve 5 is sleeved in the first mounting cavity of the first needle holder 3, a first accommodating cavity is formed on the first sleeve 5, the first elastic member 4 is accommodated in the first accommodating cavity and is respectively connected with the microneedle body 1 and the first sleeve 5, and when the microneedle body 1 is extruded by an external force, the first elastic member 4 deforms, and the microneedle body 1 can move into the first mounting cavity; when the microneedle body 1 is not extruded by external force, the first elastic piece 4 is deformed in a recovery mode so that the microneedle body 1 can move outside the first installation cavity to reset.

Like this, through setting up first sleeve 5, can cooperate together and realize first elastic component 4 effective installation with first elastic component 4 to make first elastic component 4 can take place or resume deformation, and then make microneedle body 1 can inwards or outwards move in first chamber of acceping of first sleeve 5, make the syringe needle 2 of microneedle body 1 can effectively get into human epidermis or the motion resets. Under the action of the first elastic piece 4, the depth of the needle head 2 of the microneedle body 1 entering the human epidermis is easy to control, so that the requirement on the experience of an operator is lower, the popularization of the microneedle can be facilitated, and the use requirement is met.

Preferably, the first elastic member 4 is a spring, and has a simple structure and low cost.

In this embodiment, a first connecting groove is formed at one end of the microneedle body 1 away from the needle 2, and the first connecting groove of the microneedle body 1 is matched with a first accommodating cavity on the first sleeve 5 to effectively fix the first elastic member 4.

In this embodiment, the microneedle probe assembly further includes pins, which are electrically connected to the microneedle host for supplying power to the circuit board 7, so as to facilitate control of on/off of the circuit.

In the present embodiment, the circuit board 7 is provided as a PCBA.

In this embodiment, the microneedle probe assembly further includes a cover plate 8, the bottom of the cavity penetrates the bottom surface of the housing 6 and a mounting opening is formed on the bottom surface of the housing 6, and the cover plate 8 is mounted in the mounting opening of the housing 6 to close the cavity, so that the circuit board 7 can be effectively fixed in the cavity of the housing 6. Preferably, the cover plate 8 is provided with a movable through hole, and the stitch can move in the movable through hole of the cover plate 8 to be effectively and electrically connected with the micro-needle host. The first elastic needle seat 3 can move in the needle outlet of the shell 6, so that the microneedle body 1 and the needle head 2 of the microneedle body are forced to move towards the inside or the outside of the needle outlet, the purpose of effectively controlling the contraction or the extension of the needle head 2 is achieved, and the depth of the needle head 2 of the microneedle body 1 entering human epidermis is controlled by an operator.

In this embodiment, the stitch includes a stitch body 9, a second latch seat 10, a second sleeve 12, and a second elastic member 11 for resetting the stitch body 9, where the second latch seat 10 is disposed in the movable through hole of the cover plate 8, a second mounting cavity is formed on the second latch seat 10, the second sleeve 12 is sleeved in the second mounting cavity of the second latch seat 10, a second accommodating cavity is formed on the second sleeve 12, and the second elastic member 11 is accommodated in the second accommodating cavity and connected with the microneedle body 1 and the second sleeve 12 respectively, and when the stitch body 9 is extruded by an external force, the second elastic member 11 deforms, and the stitch body 9 can move into the second mounting cavity; when the pin body 9 is not extruded by external force, the second elastic piece 11 recovers deformation so that the microneedle body 1 can move outside the second installation cavity for resetting. Like this, through setting up second sleeve 12, can cooperate and realize second elastic component 11 effective installation together with second elastic component 11 to make second elastic component 11 can take place or resume deformation, and then make stitch body 9 can inwards or outwards move in the second chamber of acceping of second sleeve 12, make stitch body 9 and microneedle host computer swing joint. Under the action of the second elastic piece 11, the stitch body 9 is movably connected with the micro-needle host, and the on-off of the circuit is controlled conveniently.

Specifically, the number of pins is set to at least 2, so as to facilitate the improvement of the connection effect with the microneedle host. Preferably, the number of the pins is set to be 4, and the number of the pins can be specifically set according to actual needs.

When the micro needle host is connected with the stitch body 9, the micro needle host can extrude the stitch body 9, the stitch body 9 moves towards the second installation cavity, the second elastic piece 11 is deformed, and the second sleeve 12 moves towards the second installation cavity, so that the second elastic needle seat 10 is driven to move towards the second installation cavity, and the micro needle host and the stitch body 9 are electrically connected effectively, so that radio frequency energy is provided for each micro needle.

Preferably, the second elastic member 11 is a spring, which is simple in structure and low in cost.

In this embodiment, a second connecting slot is formed at one end of the pin body 9 away from the circuit board 7, and the second connecting slot of the pin body 9 is matched with a second accommodating cavity on the second sleeve 12 to effectively fix the second elastic member 11.

In this embodiment, the microneedle probe assembly further includes a sealing ring 14, a sealing groove 15 is formed on an outer surface of the housing 6 and recessed toward an inner surface of the inner cavity, a mounting surface is provided on the inner surface of the housing 6, the sealing groove 15 and the mounting surface are respectively located at two sides of the housing 6 and correspond to each other in position, the sealing ring 14 is installed in the sealing groove 15 of the housing 6, a side surface is provided on a peripheral side of the cover plate 8, and the side surface of the cover plate 8 is attached to the mounting surface of the housing 6. This arrangement can facilitate improvement of the sealing performance of the connection structure between the housing 6 and the cover plate 8.

In the present embodiment, the mounting surface of the housing 6 is provided as a mounting step surface formed on the inner surface of the cavity of the housing 6, and the side surface of the cover plate 8 is provided as a connection step surface. By the arrangement, the contact area between the shell 6 and the cover plate 8 can be increased, and the sealing performance of the connecting structure between the shell 6 and the cover plate 8 is further improved.

In this embodiment, this microneedle probe assembly still includes magnet 13, and magnet 13 is fixed in the inner chamber of casing 6, is provided with another opposite magnet of polarity on the microneedle host computer, when using, because the mutual attraction of 2 magnets, can be fast, accurately with microneedle probe assembly and microneedle host computer alignment, be favorable to improving the availability factor of microneedle probe assembly. Preferably, the magnet is a strong magnet.

Specifically, set up the fixed slot on apron 8, magnet 13 is fixed in on the fixed slot of apron 8 in order to arrange in the inner chamber of casing 6 in, so set up, can do benefit to more quick, accurately with microneedle probe assembly and microneedle host alignment, be favorable to further improving microneedle probe assembly's availability factor.

More specifically, the fixing groove is a recess formed by extending from the top surface of the cover plate 8 to the bottom surface of the cover plate 8, so that the magnet 13 on the cover plate 8 can be magnetically connected with the magnet on the micro-needle host.

In addition, the preferred embodiment of the utility model also provides a radio frequency instrument, which comprises a microneedle host and a microneedle probe assembly, wherein the top surface of each microneedle body 1 protrudes upwards to form at least 2 needles 2 on the microneedle probe assembly, so that the structure of each microneedle is optimized, the contact area between the needles 2 of each microneedle body 1 and the human epidermis is increased, the depth of the needles 2 of the microneedle bodies 1 entering the human epidermis is favorably controlled by an operator, the microneedle can be conveniently used, the experience requirement on the operator is lower, the popularization of the microneedle can be favorably realized, and the use requirement is met. And each microneedle body 1 is respectively penetrated through each needle outlet on the shell 6, and under the action of the circuit board 7, each microneedle body 1 can be externally connected with a microneedle host, the microneedle host provides radio frequency energy for each microneedle body 1, the radio frequency energy can be conducted to the needle heads 2 of each microneedle body 1, and then the needle heads 2 act on human epidermis to facilitate the human epidermis to obtain the beauty effect.

The radio frequency instrument is characterized in that a Huang Jinwei needle host provides radio frequency energy, when the radio frequency instrument is needed to be used, a microneedle probe assembly is installed on the Huang Jinwei needle host, after the radio frequency instrument is started, the radio frequency energy is conducted to 32 gold microneedles through 4 pins, each gold microneedle is provided with 12 micron-sized needles 2, and the radio frequency instrument can act on human skin through 32 x 12 = 384 micron-sized needles 2. When the radio frequency energy acts on the human epidermis, firstly, 12 times more supporting points and stress points are needed than the existing 32-needle type microneedle probe, and the depth of the micron-sized needle head 2 entering the human epidermis is easier to control due to the spring force in the gold microneedle; on the other hand, the radio frequency energy is divided into 384 parts by 384 micro-needles 2 on 32 gold micro-needles, the area acting on the skin of the human body is larger, and the beauty effect is better.

The above additional technical features can be freely combined and superimposed by a person skilled in the art without conflict.

The foregoing is only a preferred embodiment of the present utility model, and all technical solutions for achieving the object of the present utility model by substantially the same means are within the scope of the present utility model.

Claims (10)

1. The microneedle is characterized by comprising a microneedle body (1), wherein at least 2 needle heads (2) are arranged on the microneedle body (1), and each needle head (2) is formed by upwards protruding the top surface of the microneedle body (1).

2. Microneedle according to claim 1, characterised in that the longitudinal section of the needle head (2) is trapezoidal.

3. The microneedle probe assembly is characterized by comprising a shell (6), a circuit board (7) and microneedles according to any one of claims 1-2, wherein an inner cavity is formed in the shell (6), the top of the inner cavity penetrates through the top surface of the shell (6), a needle outlet for accommodating the microneedle body (1) is formed in the top surface of the shell (6), the microneedle body (1) can move towards the inside or the outside of the needle outlet on the shell (6), the number of the microneedle bodies (1) is at least 1, the number of the needle outlets on the shell (6) is the same as the number of the microneedle bodies (1) and corresponds to one, the circuit board (7) is fixed in the inner cavity of the shell (6), and the microneedle bodies (1) penetrate through the needle outlet of the shell (6) and can be electrically connected with the circuit board (7).

4. The microneedle probe assembly according to claim 3, further comprising a first needle holder (3), a first sleeve (5) and a first elastic piece (4) for resetting the microneedle body (1), wherein the first needle holder (3) is electrically connected with the circuit board (7) and penetrates through a needle outlet of the shell (6), a first mounting cavity is formed in the first needle holder (3), the first sleeve (5) is sleeved in the first mounting cavity of the first needle holder (3), a first accommodating cavity is formed in the first sleeve (5), and the first elastic piece (4) is accommodated in the first accommodating cavity and is respectively connected with the microneedle body (1) and the first sleeve (5), when the microneedle body (1) is extruded by external force, the first elastic piece (4) deforms, and the microneedle body (1) can move in the first mounting cavity; when the microneedle body (1) is not extruded by external force, the first elastic piece (4) is deformed in a recovery mode so that the microneedle body (1) can move and reset outside the first installation cavity.

5. A microneedle probe assembly according to claim 3, further comprising pins for electrical connection with a microneedle host for powering a circuit board (7).

6. The microneedle probe assembly of claim 5, further comprising a cover plate (8), wherein the bottom of the cavity penetrates the bottom surface of the housing (6) and a mounting opening is formed in the bottom surface of the housing (6), the cover plate (8) is mounted in the mounting opening of the housing (6) to close the cavity, the cover plate (8) is provided with a movable through hole, and the pins are movable in the movable through hole of the cover plate (8).

7. The microneedle probe assembly according to claim 6, wherein the stitch comprises a stitch body (9), a second bullet needle seat (10), a second sleeve (12) and a second elastic piece (11) for resetting the stitch body (9), the second bullet needle seat (10) is penetrated in a movable through hole of the cover plate (8), a second installation cavity is formed in the second bullet needle seat (10), the second sleeve (12) is sleeved in the second installation cavity of the second bullet needle seat (10), a second accommodation cavity is formed in the second sleeve (12), the second elastic piece (11) is accommodated in the second accommodation cavity and is respectively connected with the microneedle body (1) and the second sleeve (12), when the stitch body (9) is extruded by external force, the second elastic piece (11) is deformed, and the stitch body (9) can move into the second installation cavity; when the stitch body (9) is not extruded by external force, the second elastic piece (11) is deformed in a recovery mode so that the microneedle body (1) can move and reset outside the second installation cavity.

8. The microneedle probe assembly according to claim 6, further comprising a sealing ring (14), wherein a sealing groove (15) is formed on the outer surface of the housing (6) and recessed toward the inner surface of the inner cavity, a mounting surface is arranged on the inner surface of the inner cavity of the housing (6), the sealing groove (15) and the mounting surface are respectively located at two sides of the housing (6) and correspond to each other in position, the sealing ring (14) is installed in the sealing groove (15) of the housing (6), a side surface is arranged on the peripheral side of the cover plate (8), and the side surface of the cover plate (8) is attached to the mounting surface of the housing (6).

9. A microneedle probe assembly according to claim 3, further comprising a magnet (13), the magnet (13) being fixed in the interior cavity of the housing (6).

10. A radio frequency apparatus comprising a microneedle probe assembly according to any one of claims 3 to 9.