Coupling structure for drug cartridge for skin treatment

Abstract

The present invention relates to a coupling structure for a skin treatment drug cartridge, which is capable of simply separating and coupling a skin treatment drug cartridge, which is internally provided with an operating unit for treating the skin of a patient by coming into contact with the skin of the patient, and an object to which the drug cartridge is to be coupled, by means of a ball plunger structure. Therefore, the convenience of replacing and cleaning or disinfecting the drug cartridge for skin treatment can be greatly improved, and an electrical contact structure for electrically contacting the drug cartridge for skin treatment and the drug cartridge coupling object can be simplified, thereby saving the manufacturing cost.

Description

Technical Field

[0001] The present invention relates to a combined structure of a skin treatment medicine cartridge, and more particularly to a combined structure of a skin treatment medicine cartridge that can ensure the convenience of replacing a skin treatment electrode medicine cartridge that needs to be periodically replaced. Background Art

[0002] Recently, with the increasing trend of attention to skin beauty, a variety of skin treatment devices have been developed.

[0003] As skin treatment devices, various structures have been proposed, such as a skin treatment device using ultrasonic waves, a skin treatment device using lasers, and a skin treatment device using radio frequency (RF) electrodes.

[0004] A skin treatment device using ultrasonic waves includes an ultrasonic treatment head that contacts the skin of a treatment subject and irradiates ultrasonic waves into the skin, and a main body that controls the operation of the ultrasonic treatment head.

[0005] A skin treatment device using ultrasonic waves is mainly applicable to a treatment in which a thermal lesion is generated in skin tissues located at a certain depth from the skin surface by using an ultrasonic treatment head with high-intensity focused ultrasonic waves, so as to intentionally damage specific skin tissues or melt and decompose adipose tissues.

[0006] In addition, a skin treatment device using a laser is used for various purposes such as preventing hair loss or promoting hair growth, skin peeling, skin regeneration, whitening, removing wrinkles or spots, and removing freckles. The treatment is performed by irradiating the laser onto the skin in the form of light spots of a certain size and using the laser to apply heat only to the treatment target area to damage the skin tissues.

[0007] In addition, a skin treatment device using radio frequency (RF) electrodes has been widely used in aspects such as skin reconstruction / resurfacing, wrinkle removal, and treatment of sebaceous glands, hair follicle adipose tissues, and spider veins through the contraction of collagen in the lower dermis or wound healing reactions.

[0008] A skin treatment device is used for treatment by a treatment personnel holding a head detachably combined with a treatment medicine cartridge, contacting the treatment medicine cartridge with the skin, and then driving the treatment medicine cartridge to work.

[0009] In addition, the number of uses is preset in the treatment medicine cartridge. Therefore, after the preset number of uses, it needs to be replaced from the head.

[0010] Treatment agent cartridges such as irradiation wave treatment agent cartridges, laser treatment agent cartridges, and radio frequency (RF) electrode treatment agent cartridges are electrically connected when combined with the handpiece, thereby receiving power supply from the control body and controlling their operation.

[0011] Existing treatment agent cartridges are separately equipped with a locking structure for maintaining the engagement state when combined with the handpiece and an electrical contact structure for being electrically connected to the control body by combining with the handpiece, so there are problems of complex structure and high manufacturing cost.

[0012] In addition, when the handpiece has a structure that is electrically connected to the treatment agent cartridge through a wire when combined with the treatment agent cartridge, there are also problems of many restrictions and inconveniences in the operations of combining and separating the treatment agent cartridge and in the cleaning operation.

[0013] In particular, for a radio frequency (RF) agent cartridge that rotates in a state where the radio frequency (RF) electrode is in contact with the skin and treats the skin, there are problems of complex electrical connection structure and many inconveniences in the operations of combining with and separating from the handpiece during the replacement operation.

[0014] As a current patent related to the present invention, it includes Korean Registered Patent No. 2206623, "Needle Tip Installed in Skin Management Device and Skin Management Device" (registered on January 18, 2021). Summary of the Invention

[0015] Technical Problem

[0016] An object of the present invention is to provide a coupling structure of a skin treatment agent cartridge that can ensure the replacement convenience of a skin treatment electrode agent cartridge that needs to be periodically replaced and simplify the electrical connection structure.

[0017] Technical Solution

[0018] To achieve the above object of the present invention, according to an embodiment of the coupling structure of a skin treatment agent cartridge of the present invention, it is characterized in that it includes: a skin treatment agent cartridge equipped with a skin treatment working part for stimulating the skin of a patient and in contact with the skin of the patient; a ball head plunger part protruding from both side surfaces of the skin treatment agent cartridge; a cartridge coupling object body equipped with a cartridge coupling part into which a part of the skin treatment agent cartridge can be inserted and coupled; and a ball head insertion part into which the ball head plunger part can be inserted is provided on the inner side surface of the cartridge coupling part.

[0019] In the present invention, the medicament cartridge combination object body may include a head main body that can be held by a treatment personnel for use and electrically connects the skin treatment working part and the control main body. The ball head plunger and the ball head insertion part have an electrical terminal structure that is in electrical contact with each other, thereby electrically connecting the skin treatment working part and the control main body.

[0020] In the present invention, the ball head plunger part may include a bottom terminal part that has a spring part disposed on the bottom surface of a spring insertion groove part into which the spring part can be inserted and is electrically connected to the skin treatment working part through a wire.

[0021] In the present invention, the skin treatment medicament cartridge may be provided on both side surfaces with contact protrusion parts protruding in an annular shape around the ball head plunger part.

[0022] In the present invention, the skin treatment medicament cartridge may include a cylindrical medicament cartridge main body part on both side surfaces that can accommodate the ball head plunger part, so as to rotate around the ball head plunger part.

[0023] In the present invention, the skin treatment working part may include a radio frequency electrode part located on the outer peripheral surface of the medicament cartridge main body part and applying a radio frequency signal by contacting the skin.

[0024] In the present invention, on both side surfaces of the medicament cartridge main body part, contact protrusion parts in an annular shape that contact the inner side surface of the medicament cartridge combination part and surround the ball head plunger part may be protrudingly formed.

[0025] In the present invention, on the inner side surface of the medicament cartridge combination part, a medicament cartridge limiter part that can be engaged with the contact protrusion part may be protrudingly formed, so as to prevent the skin treatment medicament cartridge from being pushed and moving inwardly into the medicament cartridge combination part in a state of contacting the skin.

[0026] In the present invention, the medicament cartridge limiter part may be provided on the surface facing the contact protrusion part with a ball bearing part that contacts and rolls with the contact protrusion part.

[0027] According to an embodiment of the combination structure of the skin treatment medicament cartridge of the present invention, it may further include a medicament cartridge separation part that is located inside the medicament cartridge combination part in a manner that can move back and forth in the combination direction of the skin treatment medicament cartridge, so as to separate from the combined medicament cartridge combination part by pushing the skin treatment medicament cartridge.

[0028] In the present invention, the medicament cartridge separation part may include a push rod part that is located inside the combined medicament cartridge combination part in a manner that can move back and forth and a linear movement device that is located on the medicament cartridge combination object body and enables the push rod part to move back and forth.

[0029] In the present invention, the cartridge separation part may further include an operation switch part that is located on the cartridge coupling object and controls the operation of the linear movement device by an operator's operation.

[0030] Advantages of the Invention

[0031] The present invention can simply couple or separate the skin treatment medicine cartridge and the cartridge coupling object by using a ball plunger structure, thereby achieving the effect of greatly improving the convenience of replacing the skin treatment medicine cartridge and the cleaning or disinfection operation.

[0032] In addition, the present invention can simplify the electrical contact structure that electrically contacts the skin treatment medicine cartridge and the cartridge coupling object by using the ball plunger structure that couples the skin treatment medicine cartridge to the cartridge coupling object, thereby achieving the effect of saving manufacturing costs. Brief Description of the Drawings

[0033] Figure 1 It is a perspective view illustrating an embodiment of the coupling structure of the skin treatment medicine cartridge according to the present invention.

[0034] Figure 2 It is an exploded perspective view illustrating an embodiment of the coupling structure of the skin treatment medicine cartridge according to the present invention.

[0035] Figure 3 It is a partial cross-sectional view illustrating an embodiment of the coupling structure of the skin treatment medicine cartridge according to the present invention.

[0036] Figure 4 It is a plan view illustrating another embodiment of the coupling structure of the skin treatment medicine cartridge according to the present invention.

[0037] Reference Signs

[0038] 100: Skin treatment medicine cartridge, 100a: Contact projection part, 110: Cartridge main body part, 120: Radio frequency electrode part, 200: Ball plunger part, 210: Ball part, 220: Spring part, 230: Bottom terminal part, 300: Cartridge coupling object, 300a: Head main body, 310: Cartridge coupling part, 320: Ball insertion part, 321: Ball insertion terminal part, 330: Cartridge limiter part, 340: Ball bearing part, 400: Cartridge separation part, 410: Pusher part, 420: Linear movement device, 430: Operation switch part, 431: Forward switch, 432: Reverse switch. Detailed Description of the Invention

[0039] Next, the present invention will be described in more detail.

[0040] A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Before describing the present invention in detail, it should be understood that the terms or words used in the following description and claims should not be construed in accordance with their ordinary or dictionary meanings. Therefore, the embodiments described in this specification and the configurations illustrated in the accompanying drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalent alternatives and variations at the time of this application.

[0041] Figure 1 is a perspective view illustrating an embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention, Figure 2 is an exploded perspective view illustrating an embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention, and Figure 3 is a partial cross-sectional view illustrating an embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention.

[0042] Next, reference will be made to Figures 1 to 3 describe an embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention.

[0043] An embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention includes: a skin treatment medicament cartridge 100 that comes into contact with a patient's skin and is equipped with a skin treatment working part for stimulating the patient's skin.

[0044] In addition, an embodiment of the coupling structure of a skin treatment medicament cartridge according to the present invention includes: a medicament cartridge coupling object 300 that is equipped with a medicament cartridge coupling part 310 into which a part of the skin treatment medicament cartridge 100 can be inserted and coupled.

[0045] In the skin treatment medicament cartridge 100, a skin treatment working part that receives power supply and operates to stimulate the skin is provided. When the skin treatment medicament cartridge 100 is coupled to the medicament cartridge coupling object 300, the skin treatment working part is electrically connected to the medicament cartridge coupling object 300 and receives power supply from the medicament cartridge coupling object 300 to operate.

[0046] The skin treatment medicament cartridge 100 can be variably implemented as a known skin medicament cartridge for treating the skin, such as an ultrasonic treatment medicament cartridge, a laser treatment medicament cartridge, and a radio frequency (RF) treatment medicament cartridge including an RF electrode, which treats the skin by coming into contact with the skin and stimulating the skin.

[0047] That is, as an example, the working part for skin treatment includes at least one of an ultrasonic transducer that generates ultrasonic waves, a laser generation part that generates therapeutic laser, and a radio frequency (RF) electrode part 120 that is mounted on the outer side surface of the medicine cartridge housing and generates an RF signal.

[0048] In addition, as an example, the medicine cartridge coupling object 300 is a head main body 300a that allows the skin treatment medicine cartridge 100 to be detachably coupled, can be held by a treatment personnel, and electrically connects the working part for skin treatment to the control main body 10.

[0049] The head main body 300a is connected to the control main body 10 through a connection cable 11, and the control main body 10 includes a control part that is electrically connected to the skin treatment medicine cartridge 100 through the head main body 300a and controls the operation of the working part for skin treatment of the skin treatment medicine cartridge 100.

[0050] It should be noted that the control main body 10 can be variously deformed and implemented by using known methods for the operation of the head main body 300a for various known skin medicine cartridges and for controlling the operation, and detailed descriptions thereof will be omitted here.

[0051] The control main body 10 may include a display panel 10a that displays the control mode of the head main body 300a on a screen for controlling the operation of each head main body 300a. As an example, the display panel 10a inputs an operation control signal by touching the screen displayed on the touch screen panel.

[0052] It should be noted that the operation control mode of each head main body 300a and the method of inputting an operation control signal to the operation control mode are well-known information of the skin treatment device, and detailed descriptions thereof will be omitted here.

[0053] Ball head plunger parts 200 are formed to protrude on both side surfaces of the skin treatment medicine cartridge 100, and ball head insertion parts 321 into which the ball head plunger parts 200 can be inserted are provided on the inner side surface of the medicine cartridge coupling part 310.

[0054] The ball head plunger part 200 includes a ball head part 210 that protrudes partially on the side surface of the skin treatment medicine cartridge 100, and a spring part 220 that is located inside the skin treatment medicine cartridge 100 and elastically supports the ball head part 210.

[0055] In the ball head plunger part 200, a ball head part 210 protruding partially on the side surface of the skin treatment medicine cartridge 100 is elastically supported by a spring part 220, so that when a part of the skin treatment medicine cartridge 100 is combined into the medicine cartridge coupling part 310 of the medicine cartridge coupling object 300, that is, the head main body 300a, it is inserted into the ball head insertion part 321 located on the inner side surface of the medicine cartridge coupling part 310.

[0056] When a part of the ball head part 210 in the ball head plunger part 200 of the skin treatment medicine cartridge 100 is inserted into the inside of the ball head insertion part 321 located on the inner side surface of the medicine cartridge coupling part 310, the skin treatment medicine cartridge 100 maintains the state of being combined with the head main body 300a, and is easily separated from the head main body 300a when the ball head part 210 is subjected to a force to separate from the ball head insertion part, that is, pulled in the direction opposite to the coupling direction.

[0057] That is, the skin treatment medicine cartridge 100 can be simply combined with the head main body 300a and used in skin treatment by pushing after inserting a part into the inside of the medicine cartridge coupling part 310 to insert the ball head plunger part 200 into the inside of the ball head insertion part 321, and can also be simply separated when the service life is exhausted or a failure occurs, thereby improving the convenience during the replacement operation.

[0058] In addition, the ball head plunger part 200 and the ball head insertion part 321 have an electrical terminal structure that is in electrical contact with each other, so that the skin treatment working part of the skin treatment medicine cartridge 100 can be electrically connected to the medicine cartridge coupling object 300, that is, the control main body 10, and thereby power can be supplied to the skin treatment working part and its operation can be controlled.

[0059] Specifically, the ball head insertion part 321 is a ball head insertion terminal part 321 equipped with a ball head insertion groove part and made of a conductive material. The ball head plunger part 200 can have a structure in which the spring part 220 is connected to the skin treatment working part through a wire, or the spring part 220 is arranged on the bottom surface of the spring insertion groove part into which the spring part 220 can be inserted, and further includes a bottom terminal part 330 that is electrically connected to the skin treatment working part through a wire.

[0060] The ball head insertion terminal part 321 is electrically connected to the control main body 10 through the connection cable 11 of the head main body 300a.

[0061] The spring part 220 always maintains the state of being in contact with the ball head part 210 by elastically supporting the ball head part 210, and is electrically connected to the skin treatment working part through a wire or the bottom terminal part 330.

[0062] The bottom terminal portion 330 always maintains a stable contact state with the spring member 220 by means of the elastic force of the spring member 220, so as to stably maintain the skin treatment working portion and the spring member 220 in an electrically connected state.

[0063] Therefore, when the skin treatment agent cartridge 100 is combined into the inside of the cartridge coupling portion 310 of the head main body 300a, the ball head plunger portion 200 will be inserted into the inside of the ball head insertion groove portion of the ball head insertion terminal member 321, so that the skin treatment working portion is electrically connected to the control main body 10 through the connection cable 11 of the head main body 300a, and thereby the operation of the skin treatment working portion is controlled by the control main body 10.

[0064] It should be noted that the structure in which the skin treatment working portion of the skin treatment agent cartridge 100 combined into the head main body 300a is electrically connected to the control main body 10 through the connection cable 11 can be variously deformed and implemented by using a known structure, and the detailed description thereof will be omitted here.

[0065] In addition, the skin treatment working portion includes a radio frequency (RF) electrode portion 120 that contacts the skin and applies an RF signal. As an example, the skin treatment agent cartridge 100 is an RF treatment agent cartridge that rotates around the ball head plunger portion 200 during the treatment process in a state where the RF electrode portion 120 contacts the skin.

[0066] Specifically, as an example, the skin treatment agent cartridge 100 includes a cylindrical cartridge main body portion 110 on both side surfaces where the ball head plunger portion 200 can be disposed, so as to rotate around the ball head plunger portion 200.

[0067] Contact projection portions 100a are formed to protrude on both side surfaces of the cartridge main body portion 110 and contact the inner side surface of the cartridge coupling portion 310 and surround the ball head plunger portion 200 in an annular shape.

[0068] The contact projection portions 100a are projection portions in an annular shape surrounding the ball head plunger portion 200 and have a width of less than 30% of the diameter of the ball head member 210, so as to minimize the contact area between both side surfaces of the cartridge main body portion 110 and the inner side surface of the cartridge coupling portion 310 through the annular projection portions.

[0069] When the skin treatment agent cartridge 100 is combined with or separated from the inside of the cartridge coupling portion 310, only the contact projection portions 100a will contact the inner side surface of the cartridge coupling portion 310, so that the friction can be minimized and the force required for combination with or separation from the head main body 300a can be minimized.

[0070] On both side surfaces of the cartridge main body 110, only the contact projection portion 100a rotates the cartridge main body 110 smoothly around the inner side spherical head plunger portion 200 of the cartridge coupling portion 310.

[0071] The cartridge main body 110 can rotate around the spherical head plunger portion 200 by inserting the spherical head plunger portion 200 into the spherical head insertion portion 321, and stably maintain the state where the spherical head plunger portion 200 is in electrical contact inside the spherical head insertion portion 321 while the cartridge main body 110 rotates around the spherical head plunger portion 200.

[0072] The treating personnel can hold the head main body 300a by hand, and rotate the cartridge main body 110 by pushing or pulling the head main body 300a in the state where the RF electrode portion 120 of the cartridge main body 110 is in contact with the skin, so as to apply an RF signal to the patient's skin for treatment. At this time, the cartridge main body 110 will rotate around the spherical head plunger portion 200 and stably maintain the state where the spherical head plunger portion 200 is in electrical contact inside the spherical head insertion portion 321, so as to stably apply an RF signal to the skin.

[0073] In addition, Figure 4 is a plan view illustrating another embodiment of the coupling structure of the skin treatment cartridge according to the present invention. Refer to Figure 4 In another embodiment of the coupling structure of the skin treatment cartridge according to the present invention, a cartridge stopper portion 330 for engaging the contact projection portion 100a is formed to protrude on the inner side surface of the cartridge coupling portion 310.

[0074] When the cartridge stopper portion 330 is pushed in the state where the skin treatment cartridge 100 is in contact with the skin, it engages the contact projection portion 100a, thereby restricting the movement of the skin treatment cartridge 100 toward the inside of the cartridge coupling portion 310.

[0075] The cartridge stopper portion 330 is formed on the inner side surface of the cartridge coupling portion 310 so as to protrude toward the inside of the spherical head insertion portion 321, so that when the skin treatment cartridge 100 in contact with the skin is pushed toward the inside of the cartridge coupling portion 310, it can engage the contact projection portion 100a protruding on the outer side surface of the skin treatment cartridge 100.

[0076] The skin treatment cartridge 100 is coupled to the head main body 300a through the spherical head plunger portion 200, so that the treating personnel can hold the head main body 300a by hand for treatment in the state of being in contact with the skin.

[0077] During the pressing treatment process where the treatment personnel hold the head main body 300a and press with the skin treatment medicine cartridge 100 in contact with the skin, the skin treatment medicine cartridge 100 may be pushed and move inward to the cartridge coupling part 310, resulting in the ball head plunger part 200 separating from the ball head insertion part 321.

[0078] When the ball head plunger part 200 separates from the ball head insertion part 321, problems such as treatment interruption will occur due to the power supply being disconnected.

[0079] The cartridge limiter part 330 can be engaged by the contact projection part 100a when the skin treatment medicine cartridge 100 in contact with the skin is pressed by the treatment personnel inside the cartridge coupling part 310, thereby preventing the skin treatment medicine cartridge 100 from being pushed and moving inward to the cartridge coupling part 310, and maintaining the ball head plunger part 200 stably inserted into the ball head insertion part 321 during the treatment process.

[0080] In addition, the cartridge limiter part 330 is provided with a ball head bearing part 340 that contacts and rolls with the contact projection part 100a on the surface facing the contact projection part 100a, enabling the cartridge main body part 110 to rotate smoothly.

[0081] The cartridge main body part 110 rotates around the ball head plunger part 200 in a state of contact with the skin to treat the patient's skin. Therefore, it may not be able to rotate smoothly due to the friction between the contact projection part 100a and the cartridge limiter part 330.

[0082] The ball head bearing part 340 can contact and roll with the contact projection part 100a when the cartridge main body part 110 rotates in a state of contact with the skin, enabling the cartridge main body part 110 to rotate smoothly.

[0083] Therefore, during treatment, the cartridge main body part 110 can rotate smoothly in a state of contact with the skin, and even in the case of over-pressing on the skin, it can prevent the ball head plunger part 200 from detaching from the ball head insertion part 321, thereby ensuring stable treatment and greatly improving the convenience of the treatment personnel.

[0084] In addition, according to another embodiment of the coupling structure of the skin treatment medicine cartridge of the present invention, it may further include a cartridge separation part 400 that is located inside the cartridge coupling part 310 in a manner that can move back and forth in the coupling direction of the skin treatment medicine cartridge 100, and separates from the coupling cartridge coupling part 310 by pushing the skin treatment medicine cartridge 100.

[0085] The cartridge separation unit 400 includes a push rod member 410 that is located inside the cartridge coupling portion 310 so as to be movable back and forth in the coupling direction of the skin treatment cartridge 100, and a linear movement device 420 that is located inside the cartridge coupling object 300, i.e., the head main body 300a, and causes the push rod member 410 to move back and forth.

[0086] In addition, the cartridge separation unit 400 may further include an operation switch unit 430 that is located on the head main body 300a and controls the operation of the linear movement device 420 by being operated by a treatment personnel.

[0087] The operation switch unit 430 includes a forward switch 431 and a reverse switch 432. The treatment personnel can press the forward switch 431 to use the linear movement device 420 to move the push rod member 410 forward, thereby pushing the skin treatment cartridge 100 outward from the cartridge coupling portion 310 by the push rod member 410 and separating it from the head main body 300a.

[0088] In addition, when the treatment personnel presses the reverse switch 432, the linear movement device 420 will cause the push rod member 410 to move backward and reset to the original position.

[0089] It should be noted that, as an example, the linear movement device 420 is a linear actuator in a ball screw manner. In addition to this, known lifting devices such as a rack and pinion structure including a rack and a pinion that meshes with the rack and rotates by means of a motor, and a hydraulic cylinder can be used for various deformation implementations, and detailed descriptions will be omitted here.

[0090] The skin treatment cartridge 100 may, depending on the structure coupled to the head main body 300a, be difficult for the treatment personnel to hold during separation. Moreover, for a radio frequency (RF) treatment cartridge equipped with a radio frequency electrode portion 120 on the outer side, there may be a risk of finger burns when the treatment personnel holds it while an RF signal is being applied.

[0091] The cartridge separation unit 400 can use the push rod member 410 to push the skin treatment cartridge 100 when replacing the skin treatment cartridge 100, so as to facilitate and safely separate it from the cartridge coupling object 300, i.e., the head main body 300a.

[0092] The present invention can simply couple or separate the skin treatment cartridge 100 and the cartridge coupling object 300 by using a ball head plunger structure, thereby greatly improving the convenience during the replacement operation of the skin treatment cartridge 100 and the cleaning or disinfection operation.

[0093] In addition, the present invention can simplify the electrical contact structure in which the skin treatment medicine cartridge 100 is in electrical contact with the cartridge coupling object 300 by combining the skin treatment medicine cartridge 100 with the ball plunger structure of the cartridge coupling object 300, thereby saving manufacturing costs.

[0094] It should be noted that the present invention is not limited to the embodiments described above, but can be implemented with various modifications within the scope not departing from the gist of the present invention, and these modifications are also included in the constitution of the present invention.

Claims

1. A combined structure of a medicament cylinder for skin treatment, characterized in that, Comprising: A skin treatment agent cartridge, equipped with a skin treatment working part for stimulating the patient's skin and in contact with the patient's skin; A ball-headed plunger part, protruding and formed on both side surfaces of the skin treatment agent cartridge; And An agent cartridge coupling object, equipped with an agent cartridge coupling part into which a part of the skin treatment agent cartridge can be inserted and coupled; On the inner side surface of the agent cartridge coupling part, there is a ball-headed insertion part into which the ball-headed plunger part can be inserted.

2. The coupling structure of the skin treatment agent cartridge according to claim 1, characterized in that: The agent cartridge coupling object, Includes a nose main body that can be held by a treatment personnel and electrically connects the skin treatment working part and the control main body, The ball-headed plunger and the ball-headed insertion part have an electrical terminal structure in electrical contact with each other, so as to electrically connect the skin treatment working part and the control main body.

3. The coupling structure of the skin treatment agent cartridge according to claim 2, characterized in that: The ball-headed plunger part includes a bottom terminal part in which a spring part is placed on the bottom surface of a spring insertion groove part into which a spring part can be inserted and is electrically connected to the skin treatment working part through a wire.

4. The coupling structure of the skin treatment agent cartridge according to claim 1, characterized in that: The skin treatment agent cartridge is provided with contact protrusion parts protruding in a ring shape around the ball-headed plunger part on both side surfaces.

5. The coupling structure of the skin treatment agent cartridge according to claim 2, characterized in that: The skin treatment agent cartridge includes a cylindrical agent cartridge main body part on both side surfaces that can accommodate the ball-headed plunger part, so as to rotate around the ball-headed plunger part.

6. The coupling structure of the skin treatment agent cartridge according to claim 5, characterized in that: The skin treatment working part, Includes a radio frequency electrode part located on the outer peripheral surface of the agent cartridge main body part, which applies a radio frequency signal by contacting the skin.

7. The coupling structure of the skin treatment agent cartridge according to claim 5, characterized in that: On both side surfaces of the agent cartridge main body part, there are contact protrusion parts protruding in a ring shape that contact the inner side surface of the agent cartridge coupling part and surround the ball-headed plunger part.

8. The coupling structure of the skin treatment agent cartridge according to claim 4 or claim 7, characterized in that: On the inner side surface of the agent cartridge coupling part, there is an agent cartridge limiter part protruding for the contact protrusion part to be snapped into, so as to prevent the skin treatment agent cartridge from being pushed and moving inward to the agent cartridge coupling part in the state of being in contact with the skin.

9. The coupling structure of the skin treatment agent cartridge according to claim 8, characterized in that: The agent cartridge limiter part is provided with a ball bearing part that contacts and rolls on the surface facing the contact protrusion part.

10. The coupling structure of the skin treatment agent cartridge according to claim 1, characterized in that: It further includes a cartridge separating part which is located inside the cartridge coupling part in such a way that it can move back and forth in the coupling direction of the skin treatment medicine cartridge, and thus separates from the combined medicine cartridge coupling part by pushing the skin treatment medicine cartridge.

11. The combined structure of the skin treatment medicine cartridge according to claim 10, wherein: The cartridge separating part includes: A push rod member which is located inside the combined medicine cartridge coupling part in such a way that it can move back and forth; and A linear movement device which is located on the object to which the medicine cartridge is to be coupled and causes the push rod member to move back and forth.

12. The combined structure of the skin treatment medicine cartridge according to claim 11, wherein: The cartridge separating part further includes an operation switch part which is located on the object to which the medicine cartridge is to be coupled and controls the operation of the linear movement device by being operated by a treatment personnel.

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