Needle tip for handpiece having NFC function

Abstract

To provide a needle tip for a handpiece, the needle tip having an NFC function that enables utilization of unique information, inventory management, history management, and the like.SOLUTION: A needle tip of the present invention includes: a body attached to a tip end of a handpiece; a first substrate fixedly installed inside the body, formed with an opening part in a center, and electrically connected to a plurality of high-frequency supply terminals exposed in the tip end of the handpiece; a second substrate provided movably inside the body and attached with a plurality of needles; a holder having one end penetrating the opening part of the first substrate and connected to a drive shaft of the handpiece and the other end connected to the second substrate; and a pair of connection pins connected to the second substrate and electrically connecting between the first substrate and the second substrate. The first substrate is provided with an NFC chip that stores information related to the needle tip and performs near field communication with an external NFC terminal.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a needle tip used in a handpiece for skin cosmetic and therapeutic applications, and more particularly to a needle tip for a handpiece having a near field communication (NFC) function that enables contactless wireless communication with the outside. [Background technology]

[0002] Recently, various treatments have been developed for skin cosmetic procedures, obesity treatment, etc., and among these various treatments, invasive treatments are attracting increasing attention.

[0003] A high-frequency skin cosmetic (or treatment) device using a needle electrode is composed of a needle electrode that penetrates skin tissue, a handpiece to which the needle electrode is fastened, and an energy source connected to the handpiece that transmits high-frequency energy to the needle electrode. It operates on the principle of penetrating the needle electrode into the desired area of ​​the skin and transmitting radio-frequency (RF) energy to the skin tissue.

[0004] In this case, the needle electrode is manufactured as a separate disposable product to ensure hygiene and is detachably attached to the handpiece. That is, the tip equipped with the needle electrode is detachably attached to the end of the handpiece and manufactured as a consumable part that can be replaced when necessary.

[0005] However, since handpiece needle tips, which are manufactured as consumable parts, are manufactured in a variety of types to suit the purpose of skin treatment, there is currently an emerging need for efficient management of needle tips. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent Publication No. 2021-0138959 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in consideration of the above-mentioned conventional technology, and an object of the present invention is to provide a needle tip for a handpiece having an NFC function that can utilize the unique information, inventory management, history management, etc. of the needle tip attached to the handpiece. [Means for solving the problem]

[0008] In order to achieve the above object, one aspect of the present invention provides a needle tip for a handpiece with NFC functionality that is replaceably attached to the tip of a handpiece for skin cosmetic and therapeutic use. The needle tip comprises: a body that is detachably attached to the tip of the handpiece; a first board that is fixedly installed inside the body, has an opening formed in its center, and is electrically connected to a plurality of high-frequency supply terminals exposed at the tip of the handpiece; a second board that is movably installed inside the body and has a plurality of needles attached thereto; a holder that has one end that passes through the opening of the first board and is connected to the drive shaft of the handpiece and the other end that is connected to the second board; and a pair of connection pins that are connected to the second board and electrically connect the first board and the second board, wherein the first board is provided with an NFC chip that stores information related to the needle tip and that communicates contactless wirelessly with an external NFC terminal.

[0009] The first substrate may have a first surface facing the radio frequency supply terminal formed with a plurality of radio frequency input electrodes connected to the radio frequency supply terminal, and a second surface opposite the first surface formed with a pair of radio frequency output electrodes circuit-connected to the radio frequency input electrodes and connected to the pair of connection pins, respectively. The NFC chip may be arranged around the opening of the second surface, and may be arranged at a position where an imaginary second line passes that is perpendicular to the center of an imaginary first line connecting the pair of high-frequency output electrodes. A DC power electrode, a data communication electrode, and a ground electrode, each of which is circuit-connected to the NFC chip, may be arranged in a group in an area around the opening on a first surface of the first substrate. The DC power supply electrode, the data communication electrode, and the ground electrode may be disposed at positions facing the high frequency input electrode with the opening interposed therebetween. Four of the radio frequency input electrodes may be arranged in a line around the opening. The body may include a first body detachably coupled to the distal end of the handpiece and having the first substrate fixed therein, and a second body detachably coupled to the first body and having the second substrate movably mounted therein and having a plurality of holes formed at the distal end through which the needle can pass. The handpiece needle tip may further include a needle cap removably coupled to the distal end of the body where the needle is located.

[0010] In order to achieve the above object, according to another aspect of the present invention, there is provided a needle tip for a handpiece with an NFC function, comprising: a body; a first substrate disposed inside the body, the first substrate having an opening formed in the center and having a plurality of electrodes and an NFC chip disposed thereon; a second substrate movably disposed inside the body and having a plurality of needles attached thereto; and a pair of connection pins disposed inside the body and connected to the second substrate to electrically connect the first substrate and the second substrate, the first substrate having a first surface and a second surface opposite the first surface, the first surface having a plurality of radio frequency input electrodes and a data communication electrode for data communication with the NFC chip disposed thereon, the plurality of radio frequency input electrodes and the data communication electrode being disposed on opposite sides of the opening, and the second surface having a plurality of radio frequency output electrodes electrically connected to the plurality of radio frequency input electrodes and the NFC chip disposed thereon. [Effects of the Invention]

[0011] According to the needle tip structure for a handpiece of the present invention, an NFC chip storing needle tip-related information is provided on a substrate inside the needle tip, enabling contactless wireless communication with an external NFC terminal and enabling reading or writing of information stored in the NFC chip, thereby providing usefulness for inventory management, history management, shipping management, etc. of needle tip products.

[0012] In particular, from the manufacturer's perspective, this system can be used to track and manage the production, distribution, and sales processes of needle tip products, and by assigning a unique identifier to each needle tip product, product movement and quality can be tracked, making product history and inventory management easier. Furthermore, by including a digital signature in a needle tip product, it is possible to authenticate the authenticity of the product and prevent illegal duplication, and by recording sales country information in the needle tip product, it is possible to prevent the illegal distribution of needle tip products by ensuring that the device sales country matches the needle tip sales country so that the device can be operated only when the device sales country matches the needle tip sales country. Furthermore, in terms of needle tip production, various information can be recorded on individually packaged needle tip products after all production processes have been completed, simplifying the production process and improving production efficiency.

[0013] In addition, in terms of utilizing needle tips, the specifications of individually packaged needle tip products can be easily read using an NFC terminal, making it easy to understand the product specifications, providing convenience and efficiency in use. Also, since practitioners can check the exact specification information of the needle tip without opening the packaging containing the needle tip, it is possible to prevent problems in advance, such as making mistakes during treatment by attaching a needle tip that is not suitable for the intended use.

[0014] Furthermore, when a needle tip is attached to the handpiece, the handpiece can access the information stored in the NFC chip of the needle tip via a wired method and automatically operate the driver and high-frequency generator according to the type of needle tip attached. This allows the user to conveniently perform treatment without having to manually operate a switch on the handpiece, and has the advantage of improving the efficiency and accuracy of treatment. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing a needle tip according to an embodiment of the present invention attached to a handpiece. [Figure 2] FIG. 1 is a perspective view illustrating a needle tip according to an embodiment of the present invention separated from the distal end of a handpiece. [Figure 3] FIG. 2 is an exploded perspective view showing in detail the configuration of a needle tip according to an embodiment of the present invention. [Figure 4] FIG. 2 is a cross-sectional view showing the cross-sectional structure of a needle tip according to an embodiment of the present invention. [Figure 5] FIG. 10 is a perspective view showing an NFC chip mounted on a first substrate of a needle tip. [Figure 6] FIG. 6 is a plan view of the first substrate shown in FIG. [Figure 7] FIG. 6 is a rear view of the first substrate shown in FIG. [Figure 8] 1 is a perspective view showing the distal end structure of a handpiece to which a needle tip according to an embodiment of the present invention is attached. FIG. [Figure 9] FIG. 1 is a conceptual diagram showing how power is supplied and data is transmitted between a needle tip equipped with an NFC chip and a handpiece. [Figure 10] This is a conceptual diagram showing how information about a needle tip product enclosed in packaging is wirelessly accessed via an external NFC terminal. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, specific examples of embodiments of the present invention will be described in detail with reference to the drawings.

[0017] FIG. 1 is a perspective view showing a needle tip according to one embodiment of the present invention attached to the tip of a handpiece, and FIG. 2 is a perspective view showing a needle tip according to one embodiment of the present invention separated from the tip of a handpiece.

[0018] 1 and 2, a needle tip 200 of the present invention is attached to the tip of a handpiece 100 (the upper end of the handpiece in FIG. 1). The needle tip 200 is detachably attached to the tip of the handpiece 100 in a cartridge format so that it can be replaced when necessary.

[0019] The needle tip 200 includes a plurality of microneedles to which radio frequency (RF) current is applied from the handpiece 100. The microneedles 232 included in the needle tip 200 penetrate the target skin tissue of the treatment subject and transmit radio frequency (RF) thermal energy to the skin tissue.

[0020] The needle tip 200 can be provided in various types with different numbers and arrangements of needles 232 depending on the purpose of use, and the practitioner can select the needle tip 200 suitable for the treatment and attach it to the handpiece 100 before performing the treatment.

[0021] The handpiece is connected to the main body of a skin cosmetic treatment device (not shown) via a cable, and drives the needle assembly 260 inside the needle tip 200 to transmit a radio frequency (RF) current to the needle assembly 260 .

[0022] Although not shown, the handpiece 100 is equipped with a drive unit that drives the needle 232 inside the needle tip 200 in a linear reciprocating motion, a high-frequency generating unit that generates high-frequency (RF) waves that are transmitted to the needle 232, and a control unit that controls the drive unit and the high-frequency generating unit.

[0023] The driving unit moves the needle assembly 260, to which the needle 232 is attached, in the forward and backward directions (up and down directions in FIG. 1) within a certain stroke range, and the high frequency generating unit converts the power supplied from the main body of the skin cosmetic treatment device into a high frequency current pulse form and transmits it to the needle 232. The driving unit may be in various forms such as a motor and ball screw, a pneumatic actuator, an electromagnetic actuator, etc.

[0024] The control unit is connected to various operation buttons provided on the outer or inner surface of the handpiece 100, and generates control signals in response to the user's operation of the operation buttons or device interface to control the operation of the driving unit and the high frequency generating unit.

[0025] 2, a portion of the drive shaft 110 connected to the drive unit within the handpiece 100 is exposed to the outside of the tip of the handpiece 100, and the drive shaft 110 exposed at the tip of the handpiece 100 is coupled to a holder 240 of a needle assembly 260 provided inside the needle tip 200. Therefore, when the drive unit is operated, the needle assembly 260 coupled to the drive shaft 110 moves in the front-to-back direction of the handpiece 100 (the up-and-down direction in FIG. 2).

[0026] A plurality of high-frequency supply terminals 120 are provided around the drive shaft 110 exposed at the tip of the handpiece 100 to supply high-frequency current generated by the high-frequency generator to the needle 232 inside the needle tip 200.

[0027] The plurality of high-frequency supply terminals 120 arranged around the drive shaft 110 are electrically connected to the first substrate 220 of the needle tip 200 when the needle tip 200 is attached to the distal end of the handpiece 100. That is, the plurality of high-frequency supply terminals 120 are electrically connected to the plurality of high-frequency input electrodes 225 formed on the first substrate 220 of the needle tip 200 to transmit high-frequency current to the needle assembly 260 inside the needle tip 200.

[0028] Meanwhile, the needle tip 200 of this embodiment has an NFC (Near Field Communication) function that enables short-distance communication with an external terminal. That is, an NFC chip 224 is attached inside the needle tip 200 of this embodiment, and performs short-distance wireless communication with an external NFC terminal 500 (see FIG. 10) in a contactless manner.

[0029] Fig. 3 is an exploded perspective view showing in detail the configuration of a needle tip according to one embodiment of the present invention, and is an exploded perspective view showing in detail the component configuration of a needle tip with a built-in NFC chip. Fig. 4 is a cross-sectional view showing the cross-sectional structure of a needle tip according to one embodiment of the present invention, and is a cross-sectional view showing the cross-sectional structure of a needle tip with a built-in NFC chip.

[0030] 3 and 4, the needle tip 200 includes a body 210, a needle assembly 260, and a needle cap 270.

[0031] Body 210 has an internal space for accommodating needle assembly 260, and is detachably coupled to the tip of handpiece 100. In the internal space of body 210, needle assembly 260 is disposed, which is connected to drive shaft 110 of handpiece 100 and is movable in the front-to-rear direction of handpiece 100 (up-and-down direction in the drawing).

[0032] The body 210 is composed of two separate bodies, a first body 212 and a second body 214. That is, the body 210 is formed by combining the two separate bodies, the first body 212 and the second body 214. At this time, the first body 212 and the second body 214 are detachably combined with each other. As the body 210 is formed in such a separable structure, it becomes easy to install the needle assembly 260 in the internal space of the body 210.

[0033] The first body 212, which forms the lower (rear) structure of the body 210, is detachably coupled to the tip of the handpiece 100. A first substrate 220, which electrically connects the handpiece 100 and the needle assembly 260, is provided inside the first body 212. That is, the first substrate 220 is provided as a fixed structure inside the first body 212 and serves to electrically connect the high frequency supply terminal 120 exposed at the tip of the handpiece 100 and the needle assembly 260.

[0034] The second body 214, which forms the upper (front) structure of the body 210, is detachably coupled to the tip (upper end) of the first body 212. A needle assembly 260, which is connected to the drive shaft 110 of the handpiece 100, is disposed inside the second body 214. The needle assembly 260, which is connected to the drive shaft 110 of the handpiece 100, moves back and forth (up and down in the drawing) within the second body 214 when the drive shaft 110 is actuated.

[0035] An adhesive surface 215 that is in close contact with the skin of the patient is formed at the tip of the second body 214. The adhesive surface 215 is formed with a plurality of needle holes 216 through which the needles 232 of the needle assembly 260 can enter and exit the adhesive surface 215.

[0036] When performing treatment using the needle tip 200, the contact surface 215 of the second body 214 is pressed against the skin of the patient, and the needle assembly 260 is advanced via the drive unit of the handpiece 100. The needle 232 is then drawn out of the needle hole 216 and penetrates the internal skin tissue. In this state, high frequency waves are applied to the needle 232 via the high frequency generator, transmitting thermal energy to the skin tissue, thereby enabling skin cosmetic and therapeutic treatment.

[0037] Meanwhile, the first substrate 220 fixed inside the first body 212 functions to electrically connect the handpiece 100 and the needle assembly 260. The first surface S1 of the first substrate 220 located at the bottom in the drawing is connected to the high-frequency supply terminal 120 of the handpiece 100, and the second surface S2 located at the top opposite the first surface S1 is connected to a connection pin 250 of the needle assembly 260 (described later). Here, the first surface S1 of the first substrate 220 refers to the surface facing the handpiece 100, and the second surface S2 refers to the surface facing the needle 232.

[0038] The needle assembly 260 includes a plurality of needles 232, a second board 230 on which the plurality of needles 232 are mounted, a holder 240 that supports the second board 230, and a pair of connection pins 250 that penetrate the holder 240 and are connected to the second board 230. The needle assembly 260 configured as described above is connected to the drive shaft 110 of the handpiece 100 and can move back and forth together with the drive shaft 110 within a certain stroke range, so that the needles 232 protrude back and forth outside the second body 214.

[0039] The second substrate 230 on which the plurality of needles 232 are mounted is placed on one end of the holder 240 and coupled to the holder 240 .

[0040] The holder 240 supports the second substrate 230 on which the plurality of needles 232 are mounted, and allows connection to the drive shaft 110 of the handpiece 100. That is, the holder 240 has a central pillar portion that penetrates the upper surface of the first body 212 and the first substrate 220 to be connected to the drive shaft 110 of the handpiece 100.

[0041] A pair of connection pins 250 are connected to opposite sides of the second board 230. The pair of connection pins 250 connected to the second board 230 penetrate the holder 240 and are electrically connected to the first board 220. At this time, each end of the pair of connection pins 250 penetrates the closed top surface of the first body 212 and is connected to the first board 220. As such, the pair of connection pins 250 connected to the second board 230 electrically connects the first board 220 and the second board 230, so that high-frequency current flowing from the handpiece 100 into the first board 220 flows into the second board 230 via the pair of connection pins 250.

[0042] The pair of connection pins 250 connecting the first substrate 220 and the second substrate 230 have a pogo pin structure that is extendable in length. That is, the connection pins 250 are formed with a pogo pin structure with a spring installed inside, and are configured to be extendable in the longitudinal direction. As such, since the pair of connection pins 250 have a pogo pin structure that is extendable in the longitudinal direction, the second substrate 230 can always maintain an electrical connection with the first substrate 220 through the extendable pair of connection pins 250, even when the needle assembly 260 moves back and forth within the second body 214.

[0043] A needle cap 270 that covers the needle 232 so that it is not exposed to the outside is attached to the tip of the second body 214. At this time, the needle cap 270 is attached to the tip of the second body 214 in a detachable structure, so that during treatment, the needle cap 270 can be separated from the second body 214 to expose the needle hole 216 to the outside and perform the treatment.

[0044] Meanwhile, the needle tip 200 of the present invention is provided with an NFC chip 224 capable of short-range wireless communication with an external NFC terminal (500, see FIG. 10). The NFC chip 224 in the needle tip 200 is provided in a portion of the first substrate 220 that electrically connects the needle assembly 260 and the handpiece 100.

[0045] Fig. 5 is a perspective view showing an NFC chip mounted on the first substrate of a needle tip, and Figs. 6 and 7 are diagrams respectively showing the planar and rear structures of the first substrate shown in Fig. 5. Fig. 8 is a perspective view showing the distal end structure of a handpiece to which a needle tip according to an embodiment of the present invention is attached, showing the distal end structure of the handpiece in which a plurality of radio-frequency supply terminals and signal transmission terminals are arranged, which are connected to the radio-frequency input electrode and signal transmission electrode, respectively, formed on the first substrate.

[0046] 5 to 8, the first substrate 220 of the needle tip 200 of the present invention is fixedly installed in the internal space of the first body 212 which is directly coupled to the handpiece 100.

[0047] The first substrate 220 has an opening 221 formed in the center, through which the pillar portion of the holder 240 passes. The high-frequency supply terminal 120 of the handpiece 100 is connected to one surface of the first substrate 220, and the connection pin 250 of the needle assembly 260 is connected to the other surface.

[0048] That is, the first substrate 220 has a first surface S1 facing the handpiece 100 on which a plurality of radio-frequency input electrodes 225 are formed, each connected to a radio-frequency supply terminal 120 of the handpiece 100, and a second surface S2 located opposite the first surface S1 has a pair of radio-frequency output electrodes (222, 223) formed thereon to which connection pins 250 of the needle assembly 260 are respectively connected, which are connected in a circuit to the radio-frequency input electrodes 225. In this case, the radio-frequency output electrodes (222, 223) formed on the second surface S2 of the first substrate 220 are arranged symmetrically with respect to each other across the central opening 221.

[0049] According to the embodiment, the NFC chip 224 is provided on a portion of the first substrate 220 where a plurality of electrode patterns are arranged for electrically connecting a pair of connection pins 250 connected to the second substrate 230 with the high-frequency supply terminal 120 of the handpiece 100. The NFC chip 224 provided on the first substrate 220 stores various data information related to the specifications of the needle tip 200, and performs contactless wireless communication with an external NFC terminal 500.

[0050] Specifically, the NFC chip 224 is provided in the second surface S2 region of the first substrate 220 facing the needle assembly 260. That is, the NFC chip 224 is provided in the second surface S2 region of the first substrate 220 so as to be disposed on a peripheral position of the opening 221 relatively far away from the pair of high frequency output electrodes (222, 223).

[0051] At this time, the NFC chip 224 arranged in the peripheral region of the opening 221 of the second surface S2 is arranged at a position around the opening 221 where an imaginary second straight line L2 passes, the imaginary second straight line L2 being perpendicular to the center C of an imaginary first straight line L1 connecting a pair of high-frequency output electrodes (222, 223) (see Figure 6).

[0052] By arranging the NFC chip 224 in this structure, the distance between the NFC chip 224 and the high frequency output electrodes 222 and 223 on both sides can be kept constant, and the NFC chip 224 can be arranged at a position as far away as possible from the high frequency output electrodes 222 and 223 on both sides. This can minimize degradation of NFC communication performance caused by electromagnetic interference between the NFC chip 224 and the high frequency output electrodes 222 and 223 on both sides, and improve the reliability of communication performance.

[0053] Meanwhile, on the first surface S1 of the first substrate 220, a group of signal transmission electrodes 226, i.e., a DC power supply electrode 226a, data communication electrodes (226b, 226c), and a ground electrode 226d, each connected to a circuit pattern of the NFC chip 224 mounted on the second surface S2, are arranged in a group in an area around the opening 221.

[0054] Correspondingly, around the drive shaft 110 of the handpiece 100, a plurality of signal transmission terminals 130 are formed in groups in the same arrangement, and are connected to the DC power supply electrode 226a, the data communication electrodes (226b, 226c), and the ground electrode 226d of the first substrate 220, respectively.

[0055] The DC power electrode 226a formed on the first substrate 220 functions as a power line that supplies power to the NFC chip 224. Therefore, the NFC chip 224 receives power from the handpiece 100 via the DC power electrode 226a and performs short-range communication with an external NFC terminal 500.

[0056] The data communication electrodes (226b, 226c) function as signal lines for communication with the handpiece 100. The data communication electrodes (226b, 226c) include SDA (Serial Data) and SCL (Serial Clock). The SDA 226b and SCL 226c are directly connected to the main controller in the handpiece 100 and exchange data with the controller.

[0057] In this case, the SDA 226b functions as a signal line for transmitting and receiving data, and the NFC chip 224 transmits and receives data to and from the control unit of the handpiece 100 via the SDA 226b. The SCL 226c functions as a signal line for synchronizing the data transmission speed, sending signals at regular intervals during data transmission to provide timing between data transmissions. In addition, the ground electrode 226d stabilizes voltage or current fluctuations and removes noise generated within the circuit, maintaining circuit stability and improving performance.

[0058] The DC power supply electrode 226a, the data communication electrodes (226b, 226c), and the ground electrode 226d form a signal transmission electrode group 226 arranged in a group on the first surface S1 of the first substrate 220 located opposite the NFC chip 224.

[0059] As mentioned above, a plurality of radio frequency input electrodes 225 are formed on the first surface S1 of the first substrate 220. The plurality of radio frequency input electrodes 225 are connected to the radio frequency supply terminals 120 exposed at the tip of the handpiece 100. Four of the radio frequency input electrodes 225 are arranged in a line parallel to the imaginary first straight line L1 in the peripheral region of the opening 221.

[0060] In this case, of the four radio frequency input electrodes (225a to 225d), the first and second radio frequency input electrodes (225a, 225b) are connected to the first radio frequency output electrode 222 arranged on the second surface S2, and the third and fourth radio frequency input electrodes (225c, 225d) are connected to the second radio frequency output electrode 223 arranged on the second surface S2. In this case, the first radio frequency output electrode 222 is an electrode from which a (+) radio frequency signal is output, and the second radio frequency output electrode 223 is an electrode from which a (-) radio frequency signal is output.

[0061] On the other hand, the high-frequency input electrode 225 is arranged at a position opposite to the DC power supply electrode 226a, the data communication electrodes (226b, 226c), and the ground electrode 226d, which are arranged in a group, with the central opening 221 in between (see FIG. 7).

[0062] That is, a group of electrodes consisting of the DC power supply electrode 226a, the data communication electrodes (226b, 226c), and the ground electrode 226d and the four high-frequency input electrodes (225a to 225d) are arranged in positions facing each other in a direction toward the imaginary second straight line L2 passing through the center C of the opening 221.

[0063] By arranging them in this manner, the high-frequency input electrodes (225a to 225d) through which high-frequency current flows on the first substrate 220 and the group of signal transmission electrodes (226a to 226d) are positioned as far away as possible from each other, thereby preventing a decrease in communication performance due to electromagnetic interference between the electrodes arranged on both sides and improving the reliability of communication performance.

[0064] On the other hand, if the NFC chip 224 is configured to operate by receiving power wirelessly from the external NFC terminal 500 without receiving power from the handpiece 100, electromagnetic interference between the electrodes on both sides increases the power consumption of the NFC chip 224. Therefore, this arrangement can prevent the problem of reduced power efficiency of the NFC chip 224 caused by the NFC chip 224 consuming additional power due to electromagnetic interference between the electrodes on both sides, and can also overcome the reduced communication range of the NFC chip and unstable data transmission caused by attenuation of the NFC signal due to electromagnetic interference.

[0065] FIG. 9 is a conceptual diagram showing how power is supplied and data is transmitted between a needle tip equipped with an NFC chip and a handpiece.

[0066] As shown in FIG. 9, the handpiece 100 connected to the skin cosmetic treatment device 300 supplies power for operation to the NFC chip 224 installed inside the needle tip 200, reads data information stored in the NFC chip 224, and drives the driving unit and the high frequency generating unit through the control unit inside the handpiece 100.

[0067] FIG. 10 is a conceptual diagram showing how information about a needle tip product enclosed in packaging material is wirelessly accessed via an external NFC terminal.

[0068] As shown in FIG. 10 , when the needle tip 200 is sealed in product form inside the packaging material 400, a user (e.g., a practitioner) can easily understand the product specifications of the needle tip 200 by reading the product information stored in the NFC chip 224 of the needle tip 200 inside the packaging material 400 using an external NFC terminal 500 (e.g., an NFC reader) without opening the packaging material 400 directly. Furthermore, data information may be recorded and stored in the NFC chip 224 of the needle tip 200 inside the packaging material 400 using an external NFC terminal 500 (e.g., an NFC writer). In this way, it is also possible to read and write data from and to the NFC chip 224 of the needle tip 200 using the external NFC terminal 500. In this case, the NFC terminal 500 may be in the form of an application (app) installed on a mobile phone.

[0069] As described above, the present invention provides an NFC chip 224 on which relevant data information for the needle tip 200 is stored on the first substrate 220 inside the needle tip 200, thereby enabling contactless wireless communication with an external NFC terminal 500 and the ability to read or write information stored in the NFC chip 224, making it possible to usefully utilize the needle tip 200 for inventory management, history management, shipping management, etc.

[0070] In particular, from the perspective of a manufacturer of needle tips 200, it can be used to track and manage the production, distribution, and sales processes of needle tip products, and by assigning a unique identifier to each needle tip product, it is possible to track the movement and quality of the product, which has the effect of making it easier to manage product history and inventory. In addition, by including a digital signature in the needle tip 200 product, it is possible to authenticate the genuine product and prevent illegal copying.

[0071] Furthermore, the specifications of the individually packaged needle tip 200 product can be read using the NFC terminal 500, allowing the specifications of the needle tip product to be easily and simply understood, thereby improving convenience and efficiency in use. Furthermore, since the user can accurately check the specifications of the needle tip 200 and whether it is a genuine product without directly opening the packaging of the needle tip 200, it is possible to prevent the practitioner from making a mistake in treatment by mistakenly attaching a needle tip that is not suitable for the intended use.

[0072] In addition, when the needle tip 200 is attached to the handpiece 100 for treatment, the control unit of the handpiece 100 can access the information stored in the NFC chip 224 of the needle tip 200 via a wired connection and transmit a control signal suitable for the specifications of the needle tip 200 to automatically drive the driving unit and the high-frequency generating unit. This allows the user to conveniently perform treatment without having to manually operate the operation buttons on the handpiece 100, thereby improving the efficiency and accuracy of the treatment.

[0073] In addition, by providing the NFC chip 224 in the portion of the first substrate 220 where various electrode patterns connecting the handpiece 100 and the connection pin 250 are located, no additional equipment or wiring is required for installing the NFC chip 224, and it can be easily installed by changing only the circuit pattern structure of the first substrate 220. This means that the device structure inside the needle tip 200 does not become complicated, and the cost of installing the NFC chip 224 can be reduced.

[0074] In particular, by arranging the NFC chip 224 around the opening 221 in the second surface S2 portion of the first substrate 220 and at a position where an imaginary second line L2 that is perpendicular to the center C of an imaginary first line L1 connecting the high frequency output electrodes (222, 223) on both sides passes through, the distance between the NFC chip 224 and the high frequency output electrodes (222, 223) on both sides can be maximized to prevent communication errors caused by electromagnetic interference between them, thereby improving NFC communication performance and reliability.

[0075] Furthermore, on the first surface S1 of the first substrate 220, the DC power supply electrode 226a, the data communication electrodes (226b, 226c), and the ground electrode 226d, which are arranged in a group so as to be circuit-connected to the NFC chip 224, are arranged symmetrically with respect to the multiple high frequency input electrodes 225 across the opening 221, thereby maximizing the separation distance between the multiple high frequency input electrodes 225 through which high frequency current flows and the signal transmission electrodes (226a to 226d), thereby preventing degradation of communication performance due to electromagnetic interference and improving the reliability of NFC communication performance.

[0076] In addition, if the NFC chip 224 is configured to operate by receiving power directly and wirelessly from the external NFC terminal 500, the problem of reduced power efficiency of the NFC chip 224 caused by the NFC chip 224 consuming additional power due to electromagnetic interference between the electrodes on both sides can be overcome, and the problems of reduced communication range of the NFC chip 224 and unstable data transmission caused by attenuation of the NFC signal due to electromagnetic interference can also be overcome.

[0077] In addition, by separating the body 210 of the needle tip 200 into a first body 212 and a second body 214 that are detachable from each other, it becomes easier to separate the second body 214 from the first body 212 and install the needle assembly 260 inside the second body 214.If NFC communication is not smooth, after separating the second body 214 from the first body 212, the NFC terminal can be brought as close as possible to the NFC chip 224 provided in the first body 212, thereby enabling smooth NFC communication.

[0078] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the present invention is not limited to the above-described embodiments and can be modified in various ways without departing from the technical concept of the present invention. [Explanation of symbols]

[0079] 100 handpieces 110 Drive shaft 120 High frequency supply terminal 130 Signal transmission terminal 200 needle tips 210 Body 212, 214 1st and 2nd bodies 215 Contact surface 216 Needle Hole 220, 230 First and second substrates 221 Opening 222, 223 First and second high frequency output electrodes 224 NFC chip (NFC IC) 225 High Frequency Input Electrode 225a, 225b, 225c, 225d First to fourth high frequency input electrodes 226 Signal transmission electrodes 226a DC power electrode 226b Data communication electrode (SDA: Serial Data) 226c Data communication electrode (SCL:Serial Clock) 226d Ground electrode 232 (micro)needle 240 Holder 250 connecting pins 260 Needle Assembly 270 Needle Cap 300 Skin beauty treatment equipment 400 Packaging materials 500 NFC terminals (NFC reader / writer) L1, L2 Imaginary first and second lines S1, S2 1st, 2nd side

Claims

1. A needle tip that is replaceably attached to the tip of a handpiece for skin beauty and treatment, a body detachably coupled to the distal end of the handpiece; a first substrate fixedly installed inside the body, having an opening formed in the center thereof and electrically connected to a plurality of high-frequency supply terminals exposed at the tip of the handpiece; a second substrate movably provided inside the body and having a plurality of needles attached thereto; a holder having one end coupled to the drive shaft of the handpiece through an opening in the first base plate and the other end coupled to the second base plate; a pair of connection pins coupled to the second substrate to electrically connect the first substrate and the second substrate; A needle tip for a handpiece with NFC functionality, characterized in that the first substrate is provided with an NFC chip that stores information related to the needle tip and performs contactless wireless communication with an external NFC terminal.

2. 2. The needle tip for a handpiece with NFC function according to claim 1, wherein the first substrate has a first surface facing the radio frequency supply terminal on which a plurality of radio frequency input electrodes connected to the radio frequency supply terminal are formed, and a second surface opposite the first surface on which a pair of radio frequency output electrodes are formed, the pair of electrodes being circuit-connected to the radio frequency input electrodes and respectively connected to the pair of connection pins.

3. 3. The needle tip for a handpiece with NFC function according to claim 2, wherein the NFC chip is arranged around the opening on the second surface and at a position where a virtual second line perpendicular to the center of a virtual first line connecting the pair of high-frequency output electrodes passes.

4. 3. The needle tip for a handpiece with NFC function according to claim 2, wherein a DC power electrode, a data communication electrode, and a ground electrode, each of which is circuit-connected to the NFC chip, are arranged in a group in an area around the opening on the first surface of the first substrate.

5. The needle tip for a handpiece with NFC function according to claim 4, characterized in that the DC power supply electrode, the data communication electrode, and the ground electrode are arranged in positions facing the high-frequency input electrode across the opening.

6. The needle tip for a handpiece with NFC functionality according to claim 2 , wherein four of the high-frequency input electrodes are arranged in a line around the opening.

7. The body is a first body detachably coupled to the distal end of the handpiece and having the first substrate fixed therein; 2. The needle tip for a handpiece with NFC function according to claim 1, further comprising: a second body that is detachably connected to the first body, has the second substrate movably mounted therein, and has a plurality of holes formed at its tip through which the needle can enter and exit.

8. The needle tip for a handpiece with NFC functionality according to claim 1 , further comprising a needle cap detachably coupled to a tip of the body where the needle is located.

9. Body and a first substrate disposed inside the body, the first substrate having an opening at its center and a plurality of electrodes and an NFC chip disposed thereon; a second substrate movably provided inside the body and having a plurality of needles attached thereto; a pair of connection pins disposed inside the body and connected to the second substrate to electrically connect the first substrate and the second substrate; the first substrate has a first surface and a second surface located opposite the first surface; a plurality of high frequency input electrodes and a data communication electrode for data communication of the NFC chip are arranged on the first surface; the plurality of high frequency input electrodes and the data communication electrode are arranged on opposite sides of the opening, The second surface of the needle tip for a handpiece having an NFC function is provided with a plurality of high-frequency output electrodes electrically connected to the plurality of high-frequency input electrodes and the NFC chip.

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