KR102576689B1 - Handpiece equipped with needle and high frequency electrode - Google Patents

Abstract

The present invention provides a handpiece having a needle and a high-frequency electrode.
The handpiece 500 having a needle and a high-frequency electrode according to the present invention comprises a plurality of needles 550 forming wounds on the skin surface, a fixing member 540 of the needles, and moving the fixing member of the needles forward and backward. Driving means (525, 530: cylinder rod and cylinder), a driving control unit (570: cylinder driving control unit) of the driving means, electrodes 560 and 565 configured to contact the skin surface on which the wound is formed by the needle, and the electrodes It includes a power controller (580: RF power controller) that controls the power applied to.

Description

Handpiece equipped with needle and high frequency electrode

The present invention relates to a handpiece for treatment having a radio frequency (RF) electrode in contact with the skin surface and a needle capable of forming a wound by piercing the skin in an area in contact with the RF electrode, and more particularly, to a treatment area After forming a wound on the skin surface through a needle, RF electrodes are brought into contact with the skin surface of the treatment area to irradiate high-frequency energy to promote the dissolution of skin adipose tissue in the treatment area or to provide a handpiece that can effectively treat the lesion it's about things

One example of a skin treatment device having a conventional needle is described in PCT International Publication No. WO2005/096979.

A conventional skin treatment device will be described with reference to FIGS. 1 and 2 .

The skin treatment device 300 includes a plurality of needles 350 fixed to the base 310 as shown in FIG. 1 . Base 310 is fixed to housing 340 .

An RF current source 320 is electrically connected to each needle 350.

The control module 330 can change the characteristics of the RF current and supply it to a plurality of needles. The RF current source 320 and the control module 330 constituting the energy source may be selectively disposed inside and outside the housing 340.

The energy source 320 may be a radio frequency (RF) device capable of outputting a frequency signal within a predetermined range, or a device outputting AC or DC current. The control module 330 provides application-specific settings to the energy source. The energy source 320 receives the setting information and transmits it to a designated needle to generate current.

In addition, a spacer substrate 315 having a small hole pattern through which an array of needles 350 protrude through is provided between the base 310 and the surface 306 of the skin.

The spacer substrate 315 is movably and adjustablely fixed to the base 310 or the housing 340 to provide mechanical stability of the needles, and the needle array protrudes from the lower surface 316 of the spacer substrate 315. It is configured to control the depth of the needle to be. Insert the sharp end of the needle 350 through the surface 306 of the skin tissue 305 and into the skin tissue 305 until the bottom surface 316 of the spacer substrate 315 contacts the skin surface 306. do.

With this configuration, the needle array can be inserted to a predetermined depth in the tissue to be treated with high reliability.

Control module 330 is then configured to transmit a controlled amount of RF current to needle 350 .

Applying an RF current to the needle 350 heats the tip area of the needle to create a thermal damage region 370 around the tip of the needle.

The thermal damage area 370 is obtained from the operation of the monopolar electrode device, the configuration of which is to complete an electric circuit in which a remote ground electrode (not shown in FIG. 1) transmits to the needle by the energy source 320 Attached to the remote part.

In such a monopolar electrode configuration, the RF current heats the tip area of the needle 350 to generate thermal damage to the skin tissue area 370 adjacent to the needle tip portion.

Meanwhile, in the bipolar electrode configuration device, needles 410 and 415 operating in a bipolar mode are fixed to the base 310 as shown in FIG. 2 .

The insulating part 420 covers the body parts of the needles 410 and 415 protruding from the base 310 except for the lower front end region, and electrically insulates the body parts of each conductive needle from the surrounding skin tissue 305. Conductors 430 and 431 made of wire or the like extend from upper portions of the needles 410 and 415 and are connected to energy sources.

The needle 410 operating in the bipolar electrode mode is a + electrode that transmits RF current from an energy source to the tip area of the needle 410 through the conductor 430, and the needle 415 passes through the conductor 431. Acts as an electrode (ground electrode) that transmits RF current to the tip area of the needle 415. In the configuration of the bipolar electrode mode of FIG. 2 , the applied current travels through the skin tissue between the tips of the needles 410 and 415 and forms an elongated thermal damage area 425 around and between the tips of the two needles. ) is created.

The needle 440 of FIG. 2 is constructed in a hollow form, and the hollow central channel 450 is provided from the base 310 or a source (not shown) disposed thereon to relieve or eliminate pain caused by the thermal damage process. It is used to inject the supplied analgesic into the skin tissue.

As described above, the base 310, the plurality of needles 350 fixed to the base, the energy source 320 provided in communication with the needles, and movably attached to the base to control the penetration depth of the needles A conventional skin treatment device 300 composed of a spacer substrate 315 and a control module 330 configured to change the characteristics of energy supplied by an energy source forms a pattern of a region in which thermal damage is small and localized in the dermis layer. By doing so, it is possible to obtain an effect of promoting skin tightening or wrinkle removal, and has the advantage of being able to electrically control thermal energy with respect to a predetermined position in the dermal layer or skin tissue.

However, despite the above advantages, the conventional skin treatment device 300 does not cause unwanted damage such as burns to the tissue of the wound part of the skin because high frequency energy is applied through the needle in a state where the needle is inserted into the skin. There is a problem in that the healing of the wound portion by the needle may be delayed after the operation due to the unexpected damage.

In addition, since the skin treatment device 300 can flow finely due to the slight hand shaking of the operator holding the skin treatment device 300 while electric energy is applied to the needle, the depth of the wound caused by the needle during treatment is affected. There are structural problems that can cause deviations.

PCT International Publication No. WO2005/096979

The present invention has been devised to improve the above problems, and a hand equipped with a needle and a radio frequency electrode that improves the safety and convenience of the procedure so that the skin can be effectively treated or the adipose tissue in the subcutaneous dermal layer can be effectively decomposed and removed. It aims to provide pieces.

Another object of the present invention is to provide a handpiece structure capable of applying high-frequency energy by accurately controlling the depth of a wound by a needle.

Another object of the present invention is to provide an electrode structure that allows high-frequency energy to be applied around a skin wound by a needle in a tighter state than a wound-free area.

Another object of the present invention is to provide a handpiece capable of improving treatment effects while preventing tissue destruction or burns in the dermal layer of a wound site in the process of applying high frequency waves through electrodes.

In order to achieve the above object, the handpiece having a needle and a high-frequency electrode of the present invention includes a plurality of needles for forming a wound on the skin surface, a fixing member of the needle, a driving means for advancing and retracting the fixing member of the needle, It includes a driving control unit of the driving means, an electrode configured to contact a skin surface on which a wound is formed by the needle, and a power control unit controlling power applied to the electrode.

In addition, the electrode is configured to be disposed around the wound on the skin surface formed by the needle.

In addition, as for the electrodes, + electrodes and - electrodes are alternately disposed with the wound on the skin surface interposed therebetween.

In addition, a needle guide member having a hole through which the needle passes is provided at a tip portion (end portion) of the handpiece, and the electrode is disposed on a surface of the needle guide member.

In addition, a hole through which the needle passes is formed in the electrode, and a concave-convex portion that closely adheres to the periphery of the wound formed by the needle is formed on a surface of the electrode in which the hole through which the needle passes is formed.

In addition, the driving means is composed of a cylinder having a cylinder rod, and a stopper for adjusting an advance and retreat distance of the cylinder rod, and the cylinder rod is fixed to the fixing member.

In addition, an elastic spring is formed between the fixing member and the electrode.

In addition, the concavo-convex portion is formed symmetrically about the hole through which the needle passes.

In addition, a hollow portion is formed along the central axis of the needle, and the hollow portion is configured to be connected to the medicine supply member.

The handpiece provided with the needle and high-frequency electrode of the present invention,

A plurality of needles for forming a wound on the skin surface of the target portion, a fixing member of the needle, a driving means for advancing and retracting the fixing member of the needle, a driving control unit of the driving means, and a skin surface on which a wound is formed by the needles An electrode configured to be in contact with, and a power control unit for controlling power applied to the electrode,

A needle guide member having a hole through which the needle passes is provided at an end of the handpiece, and the electrode is disposed on a surface of the needle guide member, or a hole through which the needle passes is formed in the electrode, and a hole through which the needle passes. Since the surface of the formed electrode is symmetrically configured with concavo-convex portions that adhere to the wound periphery of the skin surface, it can be used to effectively decompose and remove subcutaneous fat tissue in the treatment area and treat it, and the safety and convenience of the procedure can be improved. .

In addition, it is possible to apply high-frequency energy by precisely controlling the depth of the wound by the needle, and to apply the high-frequency energy in a state of relatively close contact around the wound by the needle compared to the area without the wound, thereby further promoting the treatment effect. can

In addition, since high frequency is not applied through the needle, it is possible to reduce the risk of damage to the dermal layer in the wound or burns due to heat generation, and to improve the recovery speed of the wound.

1 is a view showing an example of a conventional skin treatment device.
Figure 2 is a view showing another example of a conventional skin treatment device.
Figure 3 is a cross-sectional view showing an example of a handpiece equipped with a needle and a high-frequency electrode of the present invention.
Figure 4 is a cross-sectional view for explaining the operation of the needle configured in the handpiece of the present invention.
Figure 5 is a three-dimensional view showing a needle configured in the handpiece of the present invention as an example.
Figure 6 is a cross-sectional view illustrating a structure in which a high frequency electrode is contacted with a wound portion of the skin formed by the needles of the present invention to apply high frequency.
7 is a cross-sectional view illustrating contact of a high-frequency electrode having a different structure with a skin wound formed by a needle of the present invention.
8 is a cross-sectional view illustrating contact of a high-frequency electrode having another structure with a skin wound formed by a needle of the present invention.
Figure 9 is a cross-sectional view showing a handpiece having a needle and a high-frequency electrode of the present invention having a bipolar electrode structure.
10 is a cross-sectional view showing another example of a handpiece having a needle and a high-frequency electrode of the present invention having a bipolar electrode structure.
11 is a cross-sectional view for explaining the operation of a needle configured in the handpiece of FIG. 10;
12 is a cross-sectional view illustrating a structure in which a high frequency electrode is contacted with a wound portion of the skin formed by the needles of FIG. 10 to apply a high frequency wave;

Hereinafter, the technical configuration and operation of the handpiece 500 having a needle and a high-frequency electrode according to the present invention will be described in detail with reference to FIGS. 3 to 12 .

As an example, the handpiece 500 of the present invention includes a body portion 510 of the handpiece and a tip portion 520 detachably coupled to the lower portion of the body portion as shown in FIG. 3 .

A cylinder 530 having a cylinder rod 525 is embedded in the body portion 510 of the handpiece.

A needle fixing member 540 is configured at the tip portion 520 of the handpiece, and a plurality of needles 550 are fixed to the needle fixing member 540 .

The needle fixing member 540 is coupled to the end of the cylinder rod 525 with the stopper 600 formed at the lower end of the body portion 510 of the handpiece therebetween.

In addition, an electrode 560 having a hole 561 through which each needle passes is coupled to the lower end of the tip portion 520 .

The cylinder 530 and the cylinder rod 525 act as driving means for advancing and retracting the needle fixing member 540, and the driving of the cylinder 530 is controlled by the driving control unit 570 of the cylinder.

The electrode 560 configured in the tip portion is configured to apply + power through the RF power control unit 580. The -electrode 565 drawn out from the RF power control unit 580 is configured in the form of a pad and configured to act as a ground electrode that contacts the skin (thigh, etc.) of a predetermined position of the patient to be treated, thereby configuring an electrode device of a monopolar configuration. . In FIG. 3, the cylinder drive control unit and the RF power control unit 580 are shown as being configured within the handpiece body 510, but may be configured in an external device (not shown) separately from the handpiece.

The needle fixing member 540 connected to the end of the cylinder rod descends as the cylinder is driven so that the tip of the needle 550 penetrates the needle hole 561 and protrudes more than the electrode surface. The distance between the electrode surface and the protruding tip of the needle is determined by the stopper 600 being caught by the stopper 525a formed in the middle of the cylinder rod 525 as shown in FIG. 4 .

The position of the stopper 600 may be configured to be appropriately adjustable according to a designed value for the length of the tip of the needle protruding to the surface of the electrode. The needle 550 is configured to be retracted to its original position according to a signal from the cylinder driving control unit 570 before supplying power to the electrode 560 after forming a wound of a predetermined depth in the skin 700 of the treatment area. .

An elastic spring 590 may be formed between the electrode 560 and the needle fixing member 540 to speed up the return of the needle 55 to its original position and secure reliability of the return.

In addition, each needle 550 may have a hollow part 551 formed along a central axis as shown in FIG. 5 . The hollow part of the needle is connected to the medicine supply member 555 so that medicine for promoting and activating treatment can be injected into the wound formed by the needle. The diameter of the needle 550 is preferably less than 700 μm. If the diameter of the needle is 700 μm or more, there may be a limit to its use because it may increase unnecessary pain and scars on the skin. The length at which the needle 550 protrudes outward from the surface 560a of the electrode 560 (the end of the hole through which the needle penetrates) is determined according to the target depth of the wound, but when targeting the dermal layer of the skin, 500 to 2,000 μm is appropriate. Since the needle 550 of the present invention serves to form a wound on the skin surface to which the electrode 560 comes into contact, either a metal material or a non-metal material may be used.

The handpiece 500 of the present invention configured as described above brings the electrode 560 into contact with the surface of the skin 700 at the treatment site, and then drives the cylinder drive controller 570 so that the step 525a of the cylinder rod is a stopper ( 600), the tip of the needle 550 fixed to the needle fixing member 540 penetrates the skin to form a wound on the skin. In the above state, when the cylinder drive control unit 570 is re-driven to retract the cylinder rod 525, only the wound 701 is left on the skin 700 as shown in FIG. ) to the outside. As described above, when RF high-frequency power is applied to the + electrode 560 and the - electrode 565 in a state where the hole 561 of the electrode covers the wound 701 area of the skin, the target skin in contact with the + electrode 560 (700) causes thermal damage to the skin tissue area by heating the area. Fat in the dermal layer of the target skin 700 where the wound is formed by the thermal damage can be decomposed or removed, and the lesion can be treated.

In particular, since the present invention causes thermal damage to the target skin in a state where the hole 561 of the electrode covers the wound 701 area of the skin, the fat layer disturbed or relaxed by the wound can be effectively decomposed or removed, and the wound area Since the electrode does not come into direct contact with 701, it has the advantage of speeding up recovery after treatment by evening out thermal damage to the target skin including the wound.

The electrode 560 of the present invention is not limited to the structure of FIG. 3, and as shown in FIG. 7, the hole 561 of the electrode 560 through which the needle 550 passes is placed in the center and a dome-shaped convex symmetrical around the hole. It can be configured to form portion 562 .

In addition, as shown in FIG. 8, the hole 561 of the electrode 560 through which the needle 550 passes may be placed in the center and a concave concave portion 563 symmetrical around the hole may be formed.

The concavo-convex portion formed on the surface of the electrode is configured to protrude or sink 200 to 2,500 μm from the surface of the electrode 560. As described above, since the gap between the electrode surface and the convex part is not large and the size of the wound caused by the needle is small, the load of the handpiece itself or a slight load applied to the handpiece during the procedure is sufficient to close the wound part by the convex part or can be accepted

As described above, an uneven portion capable of sufficiently covering the wound 701 is formed on the surface of the electrode 560, and by wrapping around the wound 701 in close contact or receiving it, RF high-frequency waves can horizontally penetrate the target skin tissue area where the wound is located. It is possible to increase the efficiency of thermal damage.

Even when concavo-convex portions are formed on the surface of the electrode 560, the protruding length of the needle 550 to the outside of the electrode is set based on the end of the hole 561 through which the needle passes.

In addition, a skin cooling device may be additionally configured in the electrode unit to prevent burns due to the temperature rise of the target skin during the treatment process by applying RF radio frequency to the skin target unit to cause thermal damage, but not shown in the present invention. do.

The handpiece 500 of the present invention is not limited to the electrodes of the monopolar structure illustrated in the structure of FIG. 3 and may be configured of the electrodes of the bipolar structure as shown in FIG.

In the case of a bipolar electrode, the + electrode 560 and the - electrode 565 in contact with the target skin are spaced apart from each other at the front end of the tip part 520, and the RF power control unit is placed on the + electrode 560 and the - electrode 565. High frequency power is applied through 580. Other technical configurations and operations are the same as those described in FIGS. 3 to 8 .

Another example of the handpiece 500 of the present invention having a bipolar electrode structure will be described with reference to FIGS. 10 to 12 .

As shown in FIG. 10, the body portion 510 of the handpiece and the tip portion 520 configured to be detachably coupled to the lower portion of the body portion are provided.

A cylinder 530 having a cylinder rod 525 is embedded in the body portion 510 of the handpiece.

A needle fixing member 540 is configured at the tip portion 520 of the handpiece, and a plurality of needles 550 are fixed to the needle fixing member 540 .

The needle fixing member 540 is coupled to the end of the cylinder rod 525 with the stopper 600 formed at the lower end of the body portion 510 of the handpiece therebetween.

In addition, a needle guide member 440 having a plurality of holes 561 through which each needle passes is formed at the lower end of the tip portion 520. The needle guide member 440 is constructed using an insulating material including plastic or synthetic resin.

On the surface of the needle guide member 440, + RF electrodes 560 and - RF electrodes 565 are alternately disposed on both sides with respective holes 561 formed in the guide member interposed therebetween.

The cylinder 530 and the cylinder rod 525 act as driving means for advancing and retracting the needle fixing member 540, and the driving of the cylinder 530 is controlled by the driving control unit 570 of the cylinder.

The + RF electrode 560 and the - RF electrode 565 configured in the tip portion are controlled in power supply through the RF power control unit 580.

The needle fixing member 540 connected to the end of the cylinder rod descends according to the driving of the cylinder so that the tip of the needle 550 protrudes through the needle hole 561 formed in the needle guide member 440. The distance between the electrode surface and the protruding tip of the needle is determined by the stopper 600 being caught by the stopper 525a formed in the middle of the cylinder rod 525 as shown in FIG. 11 .

The needle 550 is configured to be retracted to its original position according to a signal from the cylinder driving control unit 570 before supplying power to the RF electrodes 560 and 565 after forming a wound of a predetermined depth on the skin 700 of the treatment area. do.

An elastic spring 590 may be formed between the electrode 560 and the needle fixing member 540 to speed up the return of the needle 550 to its original position and secure reliability of the return.

In the bipolar structure handpiece 500 configured as described above, after contacting the RF electrodes 560 and 565 with the surface of the skin 700 in the treatment area, the cylinder driving control unit 570 is driven so that the step 525a of the cylinder rod is a stopper When lowered until caught on (600), the tip of the needle 550 fixed to the needle fixing member 540 penetrates the skin to form a wound on the skin. In the above state, when the cylinder drive controller 570 is re-driven to retract the cylinder rod 525, only the wound 701 is left on the skin 700 as shown in FIG. ) to the outside. As described above, when RF high-frequency power is applied to the + electrode 560 and the - electrode 565 in a state where the hole 561 of the electrode covers the wound 701 area of the skin, the + electrode 560 and the - electrode 565 ) and causes thermal damage to the skin tissue area by heating the area of the target skin 700 in contact. Fat in the dermal layer of the target skin 700 where the wound is formed by the thermal damage can be decomposed or removed, and the lesion can be treated.

In particular, since the hand skin of the bipolar electrode structure causes thermal damage in a state where the hole 561 covers and wraps the wound 701 area of the skin, it can effectively decompose or remove the fat layer disturbed or relaxed by the wound, and the wound area Since the electrode does not come into direct contact with 701, it has the advantage of speeding up recovery after treatment by evening out thermal damage to the target skin including the wound.

The handpiece 500 having a needle and a high-frequency electrode of the present invention described above is not limited to the illustrated structure and description, and can be variously modified and implemented within the scope of the claims and objects of the present invention. .

The handpiece equipped with the needle and high-frequency electrode of the present invention is used in medical devices used for skin care, skin disease, and local fat removal.

300,500 - Handpiece
440 - needle guide member
510 - handpiece body
520 - tip part
525 - Cylinder Rod
525a - stepped
530 - Cylinder
540 - needle fixing member
350, 550 - needle
551 - Hollow part
555 - medicine supply member
560, 565 - electrode
560a - electrode surface
561 - Needle Hall
562 - convex part
563 - concave part
570 - Cylinder Drive Control
580 - RF power control
590 - Spring
600 - Stopper
700 - Skin
701 - Wounds

Claims (8)

A body portion and a tip portion coupled to a lower portion of the body portion;
A fixing member for a needle constituting the tip portion;
A plurality of needles configured in the fixing member of the needle to form a wound on the skin surface;
A driving means configured in the body portion to advance and retreat the fixing member of the needle;
An integrated + high-frequency electrode that covers the entire lower area of the tip portion to contact the skin and has a hole through which each of the needles passes;
A pad-type high-frequency electrode for ground connection to the skin surface;
A power control unit for controlling power applied to the + high frequency electrode and the - high frequency electrode,
Needles and high-frequency electrodes, characterized in that at least the power of the + high-frequency electrode is applied in a state where the end of each needle is spaced apart from the skin surface on which the wound is formed by using a driving means for advancing and retracting the fixing member of the needle A handpiece comprising a. According to claim 1,
A handpiece having a needle and a high-frequency electrode, characterized in that the lower periphery of the hole through which the needle of the + high-frequency electrode passes is configured to be concave and convex with respect to the surface of the + high-frequency electrode. According to claim 1,
The driving means for advancing and retracting the fixing member of the needle is composed of a cylinder having a cylinder rod and a stopper for adjusting the advance and retreat interval of the cylinder rod, wherein the cylinder rod is coupled to the fixing member of the needle Needle, characterized in that and a handpiece having a high frequency electrode. According to claim 3,
Hand piece having a needle and a high-frequency electrode, characterized in that an elastic spring is configured between the fixing member of the needle and the + high-frequency electrode. A body portion and a tip portion coupled to a lower portion of the body portion;
A fixing member for a needle constituting the tip portion;
A plurality of needles configured in the fixing member of the needle to form a wound on the skin surface;
A driving means configured in the body portion to advance and retreat the fixing member of the needle;
A pair of high-frequency electrodes formed at the lower end of the tip portion to contact the skin and having a plurality of holes through which each of the needles pass;
A power control unit for controlling the pair of high-frequency electrodes;
The needle and high-frequency electrode, characterized in that the power source of the pair of high-frequency electrodes is applied in a state where the end of each needle is spaced apart from the skin surface on which the wound is formed by using a driving means for advancing and retracting the fixing member of the needle A handpiece comprising a. According to claim 5,
The driving means for advancing and retracting the fixing member of the needle is composed of a cylinder having a cylinder rod and a stopper for adjusting the advance and retreat interval of the cylinder rod, wherein the cylinder rod is coupled to the fixing member of the needle Needle, characterized in that and a handpiece having a high frequency electrode. According to claim 6,
A handpiece having a needle and a high-frequency electrode, characterized in that an elastic spring is configured between the fixing member of the needle and the pair of high-frequency electrodes. delete

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