Treatment head and treatment system

Abstract

The utility model provides a kind of treatment head and treatment system, the treatment head includes treatment head body, treatment piece and at least one pair of auxiliary electrode;The treatment head body has end face;The treatment end of the treatment piece and at least one pair of the auxiliary electrode are located in the end face, at least one pair of the auxiliary electrode, setting in the treatment end periphery;At least one pair of the auxiliary electrode is used to contact with human body to constitute conducting loop;The treatment piece is used to implement treatment to the treatment area to be treated by the treatment end;The auxiliary electrode is also used to detect the current between human body and the auxiliary electrode, to detect whether the treatment end is parallelly contacted on the treatment area to be treated or not.The utility model provides a kind of structure of treatment head, can allow to judge whether the treatment end is parallelly contacted on the treatment area to be treated or not by the current value of auxiliary electrode.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a treatment head and treatment system. Background Technology

[0002] Medical treatment heads are the core front-end components of medical devices that directly act on the human body to achieve specific therapeutic functions. Their design must balance efficacy, safety, and human adaptability. Based on different treatment principles, medical treatment heads can be divided into several types: electrotherapy treatment heads, laser treatment heads, and ultrasound treatment heads.

[0003] During treatment, the treatment end face of the treatment head needs to be in close contact with the area to be treated. Furthermore, the spatial relationship between the treatment head and the area directly affects the treatment outcome. Generally, the device in the treatment head that achieves the therapeutic effect is perpendicular to the treatment end face. Examples include: radiofrequency microneedles in electrotherapy treatment heads, the axis of the laser output port in laser treatment heads, and the output axis of the transducer in ultrasound treatment heads. The spatial position of the treatment head relative to the area to be treated affects the energy transmission efficiency, treatment precision, and treatment depth. Radiofrequency microneedling is a microinvasive radiofrequency fractional technology. In existing radiofrequency microneedling solutions, due to operator inexperience or improper operation, the microneedles are not inserted at an angle perpendicular to the outer surface of the skin tissue. This results in some microneedles not reaching the preset depth of penetration, causing some areas of the target tissue to be untreated. In addition, for ultrasound focusing technology and laser focusing technology used in skin treatment, whether the treatment energy output axis is perpendicular to the skin surface also has a significant impact on the depth of the focal point. Utility Model Content

[0004] The main objective of this invention is to provide a treatment head and treatment system, which aims to propose a scheme for detecting the positional relationship between the treatment head and the area to be treated.

[0005] To achieve the above objectives, the present invention proposes a treatment head comprising a treatment head body, a treatment component, and at least one pair of auxiliary electrodes; the treatment head body has an end face; the treatment end of the treatment component and at least one pair of auxiliary electrodes are disposed on the end face; at least one pair of auxiliary electrodes are disposed around the treatment end; the at least one pair of auxiliary electrodes are used to contact the human body to form a conductive circuit; the treatment component is used to emit energy through the treatment end to the area to be treated; the auxiliary electrodes are also used to detect the current between the human body and the auxiliary electrodes to detect whether the treatment end is in parallel contact with the area to be treated.

[0006] Optionally, the distance between the auxiliary electrode and the center of the treatment head is greater than a set value, so that the contact between the auxiliary electrode and the area to be treated is not affected by skin deformation caused by microneedles.

[0007] Optionally, the auxiliary electrode protrudes from the end face.

[0008] Optionally, the auxiliary electrode protrudes 0mm-1mm from the end face.

[0009] Optionally, there may be multiple pairs of auxiliary electrodes, and the straight lines formed by the multiple pairs of auxiliary electrodes intersect.

[0010] Optionally, the auxiliary electrode is elongated, with its short side positioned along the direction of the straight line formed by the auxiliary electrode.

[0011] Optionally, the treatment device includes a motor and a telescopic device with radiofrequency microneedles; the motor is mechanically connected to the telescopic device; the radiofrequency microneedles are perpendicular to the end face; the motor is used to drive the telescopic device to extend / retract the radiofrequency microneedles through the treatment end.

[0012] Optionally, the treatment component includes an acoustic window and an ultrasonic transducer; the acoustic window is disposed on the end face; the ultrasonic transducer is used to generate a corresponding focused ultrasonic signal when it receives a driving electrical signal, and the focused ultrasonic signal reaches the treatment area through the acoustic window.

[0013] Optionally, the treatment device includes a laser; the laser is used to emit a corresponding focused laser when it receives an electrical signal; the focused laser passes vertically through the treatment end to reach the area to be treated.

[0014] This invention also proposes a treatment system, which includes a control module, a current detection module, an auxiliary power output module, and a treatment head. The current detection module is connected to at least one pair of auxiliary electrodes, detects the current value flowing through the at least one pair of auxiliary electrodes, and outputs it to the control module. The control module is used to control the auxiliary power output module to sequentially output detection electrical signals to one pair of auxiliary electrodes in the at least one pair of auxiliary electrodes, and outputs a characterization signal when the current value of all auxiliary electrodes is greater than a preset current value. The characterization signal is used to characterize that the treatment head is in parallel contact with the area to be treated.

[0015] Optionally, the detection electrical signal is a low-frequency AC signal.

[0016] Optionally, the auxiliary power output module includes: a detection signal output circuit, a treatment signal output circuit, and a switching circuit; the detection signal output circuit is used to output a detection current signal; the treatment signal output circuit is used to output a treatment current signal; the detection signal output circuit and the treatment signal output circuit are respectively connected to the input terminal of the switching circuit, and the output terminal of the switching circuit is respectively connected to at least one pair of auxiliary electrodes; the control module is connected to the control terminal of the switching circuit, and is also used to control the switching circuit to switch between connecting and conducting the detection signal output circuit or the treatment signal output circuit according to a set frequency when the current value of the auxiliary electrode is greater than the preset current value; the current detection circuit includes a low-pass circuit, which is used to filter out the high-frequency signal output by the auxiliary electrode to avoid high-frequency signal interference.

[0017] Optionally, the treatment system further includes: a prompting module; the prompting module is connected to the control module; the prompting module is used to emit light and / or sound to indicate whether the treatment end is in parallel contact with the area to be treated; the control module is also used to output a first command to the prompting module when the current value of the auxiliary electrode is greater than a preset current value; when the prompting module receives the first command, it emits a first signal, the first signal being used to indicate that the treatment end is in parallel contact with the area to be treated; the first signal is a light signal and / or a sound signal; the control module is also used to output a second command to the prompting module when the current value of the auxiliary electrode is less than or equal to the preset current value; when the prompting module receives the second command, it emits a second signal; the second signal is used to indicate that the treatment end is not in parallel contact with the area to be treated; the second signal is a light signal or a sound signal.

[0018] Optionally, the treatment system also includes a power conversion module; the input of the power conversion module is connected to the mains power, and the output is connected to the control module, the prompting module, the auxiliary power output module and the treatment device respectively; the power conversion module is used to convert the mains power to provide power to the control module, the prompting module, the auxiliary power output module and the treatment device; the auxiliary power output module is used to convert the power output of the power conversion module into a preset form of detection electrical signal.

[0019] This invention discloses a treatment head and treatment system. The treatment head includes a treatment head body, a treatment component, and at least one pair of auxiliary electrodes. The treatment head body has an end face. The treatment end of the treatment component and at least one pair of auxiliary electrodes are disposed on the end face, with the at least one pair of auxiliary electrodes surrounding the treatment end. The at least one pair of auxiliary electrodes are used to contact the human body to form a conductive circuit. The treatment component is used to perform treatment on the area to be treated through the treatment end. The auxiliary electrodes are also used to detect the current between the human body and the auxiliary electrodes to detect whether the treatment end is in parallel contact with the area to be treated. This invention uses the auxiliary electrode pair and the conductive circuit formed by the human body contact to detect the contact between the treatment head and the area to be treated, enabling more accurate detection and evaluation of the contact state, thus facilitating more precise treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Fig. 1 This is a schematic diagram of the structure of one embodiment of the treatment head of this utility model; Fig. 2 This is a schematic diagram of another embodiment of the treatment head of this utility model; Fig. 3 This is a schematic diagram of another embodiment of the treatment head of this utility model; Fig. 4 This is a schematic diagram of the structure of an embodiment of the ultrasonic therapy head of this utility model; Fig. 5 This is a schematic diagram of another embodiment of the ultrasonic therapy head of this utility model; Fig. 6 This is a schematic diagram of another embodiment of the ultrasonic treatment head of this utility model.

[0022] Explanation of icon numbers: 1. Radiofrequency microneedle treatment head; 2. Ultrasonic therapy head; 11. End face; 12. Auxiliary electrode; 13. Telescopic device; 14. Microneedling; 21. End face; 22, Auxiliary electrode; 23. Soundproof window; 24. Ultrasonic transducer.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] Radiofrequency microneedling (MRF) is an emerging minimally invasive therapy that uses an array of insulated or non-insulated metal needles inserted into the skin. High-frequency current induces a thermal effect, promoting the regeneration and remodeling of collagen and elastin fibers in the dermis. MRF technology has demonstrated significant advantages in controlling the thermal effect and delivering deep energy, and has been widely used in the treatment of facial rejuvenation and other skin problems. Generally, the MRF needles are inserted into the skin tissue at a predetermined depth via a motor connected to the motor's rotation parameters, allowing for precise control of the treatment location.

[0029] On the other hand, focused ultrasound therapy / focused laser therapy uses acoustic focusing structures / optical focusing structures to focus ultrasound energy / light energy to a preset depth on the skin. By controlling the focus or the effective distance, precise energy delivery can be achieved.

[0030] In this invention, the treatment head includes a treatment head body, a treatment component, and at least one pair of auxiliary electrodes. The treatment head body has an end face. The treatment end of the treatment component and at least one pair of auxiliary electrodes are disposed on the end face, and the at least one pair of auxiliary electrodes are symmetrically arranged about the treatment end. The at least one pair of auxiliary electrodes are used to contact the human body to form a conductive circuit. The treatment component is used to emit energy to the area to be treated through the treatment end. The auxiliary electrodes are also used to detect the current between the human body and the auxiliary electrodes to detect whether the treatment end is in parallel contact with the area to be treated.

[0031] The first embodiment of this utility model proposes a treatment head structure. The treatment head includes: a treatment head body, at least one pair of auxiliary electrodes, and a treatment component.

[0032] The treatment head body has an end face; at least one pair of auxiliary electrodes are disposed on the end face and used to contact the human body to form a conductive circuit; the treatment end of the treatment component is disposed on the end face, and the treatment component is used to perform treatment on the area to be treated through the treatment end. It should be noted that the treatment function that the treatment component can achieve determines the type of treatment head. For example: if the treatment component includes radiofrequency microneedles, the treatment head is an electrotherapy treatment head; if the treatment component includes a laser, the treatment head is a laser treatment head; if the treatment component is a transducer, the treatment head is an ultrasound treatment head. It should be specifically pointed out that the treatment component performing treatment on the area to be treated through the treatment end can be divided into two forms: invasive treatment and non-invasive treatment. Invasive treatment, such as radiofrequency microneedles, pierces into the human skin and releases a liquid or energy for treatment after reaching a set depth. Non-invasive treatment, such as lasers or ultrasound transducers, does not directly insert the physical device into the skin, but outputs a laser beam or ultrasound energy to the area to be treated to achieve treatment. The treatment component performs either invasive or non-invasive treatment through the treatment end. The treatment end can be an area on the end face that allows for invasive or non-invasive treatment. This area allows for non-invasive treatment using treatment energy, such as ultrasound energy or laser beams; or this area allows a treatment device to extend out and pierce the skin for invasive treatment, such as radiofrequency microneedles extending out from the treatment end and piercing the area to be treated in the skin.

[0033] In actual treatment, the end face needs to be in close contact with the area to be treated to achieve parallel contact. It's easy to understand that the device in the treatment unit that achieves the therapeutic effect is perpendicular to the end face; when the end face is in parallel contact with the area to be treated, the device is perpendicular to the area, allowing treatment to be performed in a direction perpendicular to the area, thus making it easier to precisely control the treatment level; furthermore, because the path of treatment energy in the vertical direction is shorter, better utilization of treatment energy can be achieved.

[0034] During treatment, the end face of the treatment head faces the area to be treated on the human body. At least one pair of auxiliary electrodes is disposed on the end face, wherein two of the auxiliary electrodes in the pair are positioned around the treatment end, specifically, the two auxiliary electrodes are symmetrical about the center of the treatment end. The two auxiliary electrodes in the pair are respectively connected to the positive and negative output terminals of the auxiliary power output module. Since human skin is a conductor, when the auxiliary power output module outputs voltage to the auxiliary electrodes, the auxiliary electrodes and the area to be treated form a conductive circuit. That is, current flows out from the positive output terminal, enters the area to be treated through one of the auxiliary electrodes, and then reaches the negative output terminal through the other auxiliary electrode.

[0035] It should be noted that the treatment device, perpendicular to its end face, treats the area to be treated through the treatment end. The contact surface between the area to be treated and the treatment end is parallel to the end face. Correspondingly, the auxiliary electrodes around the treatment end will contact the human skin, and the auxiliary electrodes and the area to be treated form a conductive circuit; current flows through the auxiliary electrodes. Therefore, the presence of current through the auxiliary electrodes confirms that at least one pair of auxiliary electrodes is in contact with the human body, forming a conductive circuit.

[0036] Taking a treatment device including a radiofrequency microneedle as an example, in one example, based on the above, it can be determined that when the treatment end is in parallel contact with the area to be treated, current flows through the auxiliary electrode. It is easy to understand that when the radiofrequency microneedle is not perpendicular to the area to be treated, the contact surface between the area to be treated and the radiofrequency microneedle forms a certain angle with the end face of the treatment head. For a pair of auxiliary electrodes, one auxiliary electrode is in contact with the human skin, while the other auxiliary electrode is not in contact with the human skin or has poor contact. Therefore, the pair of auxiliary electrodes and the area to be treated do not form a conductive circuit.

[0037] It should be noted that the condition for a pair of auxiliary electrodes to form a conductive circuit with the area to be treated is that both auxiliary electrodes are in good contact with the human skin. Because the two auxiliary electrodes are centrally symmetrical about the treatment end, when the two auxiliary electrodes are in contact with the human skin, their end faces are parallel to the area to be treated. This is easily understood as follows: when the treatment end is in parallel contact with the area to be treated, the end face is parallel to the area to be treated.

[0038] This invention proposes a treatment head structure that, based on this structure, can collect the current value at the auxiliary electrode. When the current value at the auxiliary electrode is not zero, it is concluded that the treatment end is in parallel contact with the area to be treated; when the current value at the auxiliary electrode is zero, it means that at least one of the pair of auxiliary electrodes is not in contact with the human skin. It should be noted that the controller that judges the current value at the auxiliary electrode does not necessarily belong to the treatment head proposed in this invention. The treatment head provides the structural details for implementing the above judgment, which determines that judgment can be made based on the current value at the auxiliary electrode. Based on the treatment head proposed in this invention, judgment can be made through the current of the auxiliary electrode. The skin tissue in the area to be treated has a certain resistance; the larger the contact area between the auxiliary electrode and the skin tissue, the smaller the resistance. Therefore, the magnitude of the current through the auxiliary electrode reflects, to some extent, the contact area and degree of adhesion between the auxiliary electrode and the skin tissue. Therefore, when the auxiliary electrode is in contact with the skin tissue surface and conducts, and the current is greater than a preset value, it can be considered that the treatment end of the treatment head is basically parallel to the tissue surface, and correspondingly, the energy output by the treatment device acts perpendicularly on the area to be treated.

[0039] It is easily understood that, to ensure that the auxiliary electrode makes initial and sufficient contact with the skin when the treatment head approaches the skin, the auxiliary electrode is provided with a protruding end face. Specifically, in one example, this invention discloses a distance range of 0mm-1mm for the protruding end face of the auxiliary electrode. It should be noted that if the auxiliary electrode is recessed, it may lead to insensitive detection; if the auxiliary electrode protrudes beyond the range, it may be insufficient to detect tilted contact, resulting in inaccurate detection. The distance range of 0mm-1mm disclosed in this example enables the auxiliary electrode to detach from the body when the treatment head is tilted; and when the treatment head is not tilted and is in normal use, the auxiliary electrode contacts the body before the end face.

[0040] In the first embodiment of this utility model, the distance between the auxiliary electrode and the treatment end is greater than a set value.

[0041] It should be noted that, based on the treatment head proposed in this utility model, the following operating steps can be implemented: first, the current value at the auxiliary electrode is used to determine whether the treatment end is in parallel contact with the area to be treated; when the treatment end is in parallel contact with the area to be treated, the treatment device performs treatment; during the treatment process, the current at the auxiliary electrode is continuously used to determine whether the parallel relationship between the treatment end and the area to be treated changes.

[0042] It is important to clarify that when using an auxiliary electrode to detect whether the treatment end is in parallel contact with the area to be treated, a voltage needs to be applied to the auxiliary electrode. When the auxiliary electrode forms a conductive circuit with the human body, current flows through it; when the auxiliary electrode is not in contact with the human body and does not form a conductive circuit, no current flows through it. The distance between the auxiliary electrode and the treatment end affects the electric field distribution of the current circuit. If the distance is too close, the current path between the treatment end and the auxiliary electrode is too short, and minute changes in skin contact resistance may be masked, resulting in insufficient sensitivity of parallelism detection. When the distance is greater than a set value, the current needs to flow through a longer path of human tissue, and the difference in contact resistance between the two electrodes caused by the tilt of the treatment end will be more significant (e.g., the current difference between the two sides increases), thereby improving the detection sensitivity.

[0043] Furthermore, the treatment device may generate a strong electromagnetic field during operation (such as outputting radio frequency or ultrasound energy). If the auxiliary electrode is too close, its current detection signal is easily interfered with by the energy of the treatment device, leading to detection errors. Setting a distance threshold can ensure that the auxiliary electrode is in a region with weak interference, maintaining the accuracy of current acquisition. For invasive treatment methods (such as radiofrequency microneedling): the treatment device needs to be in close contact with the skin. If the auxiliary electrode is too close, it may overlap with the contact area of ​​the treatment device, resulting in uneven skin pressure or inconvenience in operation.

[0044] The greater distance allows the auxiliary electrode to operate more independently of the energy field of the treatment end. The current detection signal primarily reflects the contact state between the electrode and the skin, rather than direct interference from the energy of the treatment end. For example, in radiofrequency therapy, if the auxiliary electrode is too close to the treatment end when it outputs high-frequency energy, the induced current may cause distortion of the detection signal. Maintaining a safe distance can avoid this problem.

[0045] Taking an electrotherapy treatment head as an example, it's easy to understand that during the insertion of the radiofrequency microneedle into the skin, the microneedle applies pressure to the skin. Under this pressure, the skin deforms, and this deformation is distributed around the center of the microneedle, with greater deformation closer to the center. To prevent the skin from detaching from the auxiliary electrode after deformation, thus misinterpreting the situation and breaking the conductive circuit, the distance between the auxiliary electrode and the microneedle is greater than a set value. When the center of the microneedle coincides with the center of the electrotherapy treatment head, the distance between the auxiliary electrode and the center of the treatment head is greater than the set value. It's easy to understand that having a distance greater than the set value between the auxiliary electrode and the treatment end achieves the following effect: the contact between the auxiliary electrode and the treatment area does not change due to skin deformation caused by the microneedle.

[0046] The primary design purpose of electrotherapy treatment heads is to allow the operator to vertically insert microneedles into the treatment area. Radiofrequency microneedles are typically positioned in the central region of the treatment head. At least one pair of auxiliary electrodes are symmetrically positioned on either side of the center of the end face; similarly, at least one pair of auxiliary electrodes are symmetrically positioned on either side of the center of the radiofrequency microneedles.

[0047] It should be noted that regardless of whether the center of the radiofrequency microneedle coincides with the center of the electrotherapy treatment head, the parallelism between the treatment area and the contact surface of the radiofrequency microneedle can be determined by the current of the auxiliary electrode, and the fact that the radiofrequency microneedle is perpendicular to the end face.

[0048] In one embodiment, there are multiple pairs of auxiliary electrodes, and the straight lines formed by the multiple pairs of auxiliary electrodes intersect.

[0049] When there are multiple pairs of auxiliary electrodes and the straight lines formed by these pairs intersect, this structural design offers significant technical advantages in parallelism detection and spatial positioning of the treatment head. A single pair of auxiliary electrodes can only detect tilt in a single direction, while multiple pairs of electrodes forming intersecting straight lines (such as two pairs of electrodes arranged in a cross shape, with the connecting lines intersecting at the center of the treatment end) can simultaneously detect tilt in two directions, achieving parallelism judgment in a two-dimensional plane. For example, two pairs of electrodes are distributed along the horizontal and vertical directions respectively, with their connecting lines intersecting at the center of the treatment end. When the treatment head tilts in any direction, at least one pair of electrodes will experience a current change due to differences in contact resistance, thus covering angular deviation detection within a 360° range. To improve detection efficiency, when there are two pairs of auxiliary electrodes, a cross-shaped orthogonal layout can be adopted, with the two pairs of auxiliary electrodes symmetrically distributed along the first and second axes respectively, and the connecting lines intersecting at the center of the treatment end; the first and second axes are perpendicular. When the number of auxiliary electrode pairs is greater than two, a radial multi-pair layout can be adopted. The multiple pairs of electrodes are evenly distributed radially with the center of the treatment end as the center (e.g., three pairs of electrodes spaced 120° apart, with the connecting lines intersecting at the center). Compared with the orthogonal layout, the radial layout can cover tilt detection in more directions, and is especially suitable for omnidirectional calibration of circular treatment ends (e.g., center positioning of the laser treatment head spot).

[0050] In one embodiment of this invention, there are multiple pairs of auxiliary electrodes, and at least some of the auxiliary electrode pairs share the same electrode. For example, there can be three auxiliary electrodes, forming two pairs: the first electrode and the third electrode form the first electrode pair, and the second electrode and the third electrode form the second electrode pair. Both electrode pairs share the same third electrode as a common negative electrode, while the first and second electrodes serve as positive electrodes. This technical solution can save on the number of electrodes, and activation of different auxiliary electrode pairs can be achieved simply by switching the circuit switches between the first and second electrodes. In this technical solution, the straight lines formed by multiple auxiliary electrode pairs intersect at the common electrode.

[0051] In one example, the auxiliary electrode is elongated, with its short side positioned along the direction of the straight line formed by the auxiliary electrode.

[0052] It should be noted that the side of the auxiliary electrode that contacts the human body is rectangular; the auxiliary electrode can also be rectangular (strip-shaped). Considering the side of the auxiliary electrode that contacts the human body, the shorter side of this side is aligned along the direction of the straight line formed by the auxiliary electrode. Specifically, the auxiliary electrode and another auxiliary electrode form a pair of auxiliary electrodes, which together form a straight line. Since the shorter side is aligned along the direction of the straight line, the longer side of this side is perpendicular to the direction of the straight line.

[0053] It needs to be explained that, on the one hand, for detection accuracy, the auxiliary electrodes need to have a sufficient area; however, on the other hand, if the electrode size along the line connecting the auxiliary electrode pair is too large, it can easily lead to difficulty in accurately detecting whether tilting contact has occurred. Therefore, given the same area, it is preferable to use elongated electrodes to define the electrode orientation. In this example, the short side of the auxiliary electrode is positioned along the direction of the straight line; when the treatment head tilts along the direction of the straight line, the presence of the short side allows for rapid and accurate detection of whether the treatment head is tilted. Specifically, when the treatment head tilts along the direction of the straight line, the short side loses contact with the body when the treatment head tilts at a shorter angle, causing the current flowing through the pair of auxiliary electrodes to rapidly decrease to zero.

[0054] Reference Figs. 1 to 3 The treatment device includes a motor and a telescopic device 13 with a radiofrequency microneedle 14; the motor is mechanically connected to the telescopic device 13; the radiofrequency microneedle 14 is perpendicular to the end face 11; the motor is used to drive the telescopic device 13 to extend / retract the radiofrequency microneedle 14 through the treatment end.

[0055] Since the treatment device includes a radiofrequency microneedle 14, the corresponding treatment head is a radiofrequency microneedle treatment head 1. In the second embodiment of this utility model, the microneedle 14 is fixedly disposed on the end face 11. It is easy to imagine that the tip of the microneedle 14 contacts the human skin before the auxiliary electrode 12. That is, the microneedle 14 protrudes from the end face 11. The auxiliary electrode 12 only contacts the human skin after the microneedle 14 enters the treatment area. Although this does not affect the determination of whether the microneedle 14 is perpendicular to the treatment area based on the current of the auxiliary electrode 12, since the microneedle 14 has already pierced the human skin before the determination is obtained, repeatedly adjusting the angle between the microneedle 14 and the skin tissue will prolong the treatment time and affect the treatment experience of the patient.

[0056] In the third embodiment of this utility model, the telescopic device 13 is movably disposed on the radiofrequency microneedle treatment head 1; the microneedle 14 is disposed on the telescopic device 13; initially, the microneedle 14 is retracted into the end face 11, that is, when the treatment head contacts the human skin, the auxiliary electrode 12 contacts the human skin first. After confirming that the microneedle 14 is perpendicular to the area to be treated, the telescopic device 13 then extends the microneedle 14 and inserts it into the area to be treated. In the third embodiment, the microneedle 14 is inserted into the area to be treated only after confirming that it is perpendicular to the area to be treated; this avoids the radiofrequency microneedle 14 repeatedly piercing the skin during the operator's adjustment of the treatment head, thus avoiding affecting the patient's treatment experience.

[0057] The motor is used to rotate when voltage is applied to the motor input terminal, driving the telescopic device 13 to extend the micro needle 14, or driving the telescopic device 13 to retract the micro needle 14.

[0058] It should be noted that the microneedle 14 is connected to the telescopic device 13, which can extend or retract the microneedle 14. A motor provides power to the telescopic device 13, and the motor can be connected to the telescopic device 13 via a gear set or a ball screw. The motor rotates accordingly when voltage is applied to its input terminal. It should be noted that the treatment head is used in the treatment system, and the input terminal of the auxiliary electrode 12 can be connected to the voltage signal output from the treatment system. Different voltage signals will cause the motor to rotate in different directions. For example, when the motor rotates forward, the telescopic device 13 extends the microneedle 14; when the motor rotates in reverse, the telescopic device 13 retracts the microneedle 14.

[0059] Reference Figs. 4 to 6 In one embodiment, the treatment component includes an acoustic window 23 and an ultrasonic transducer 24; The acoustic window 23 is disposed on the end face 21; the ultrasonic transducer 24 is used to generate a corresponding focused ultrasonic signal when it receives a driving electrical signal, and the focused ultrasonic signal reaches the treatment area through the acoustic window 23.

[0060] It is easy to understand that when the treatment device includes an acoustic window 23 and an ultrasonic transducer 24, the treatment head is an ultrasonic treatment head 2. The ultrasonic treatment head 2 can also determine whether the treatment end is in parallel contact with the area to be treated by the current value at the auxiliary electrode 22.

[0061] The acoustic window 23 is a specific area in the ultrasound treatment head 2 that allows ultrasound waves to pass through and enter human tissue. It is usually made of a material with good ultrasound conductivity. The main function of the acoustic window 23 is to reduce energy loss and reflection of ultrasound waves during their propagation from the treatment head to the human tissue. At the same time, the acoustic window 23 also protects internal components such as the ultrasound transducer 24 from external environmental influences and damage, and ensures good acoustic coupling performance when in contact with human skin to improve the effectiveness of ultrasound therapy.

[0062] The ultrasonic transducer 24 is the core component of the ultrasonic treatment head 2, converting electrical energy into ultrasonic mechanical energy. Based on the inverse piezoelectric effect, when an alternating electric field is applied to the piezoelectric material in the ultrasonic transducer 24, the piezoelectric material undergoes periodic expansion and contraction deformation, thereby generating ultrasonic vibrations. These ultrasonic vibrations propagate into human tissue through the acoustic window 23 of the treatment head, utilizing the thermal, mechanical, and cavitation effects of ultrasound to treat diseases, such as promoting blood circulation, loosening adhesions, and stimulating tissue repair and regeneration. Different types of ultrasonic treatment head transducers have different characteristics such as operating frequency, power, and vibration mode to adapt to different treatment needs.

[0063] The acoustic window 23 is placed in close contact with the area to be treated. The driving electrical signal is provided by a device outside the ultrasound treatment head 2.

[0064] In addition, at least one pair of auxiliary electrodes 22 are connected to a DC voltage or an AC voltage. Similarly to the above, applying a DC voltage or an AC voltage to the electrodes can be used to determine whether the posture of the treatment head 2 is parallel and in close contact with the area to be treated.

[0065] In another embodiment, the treatment element includes a laser; The laser is used to emit a corresponding focused laser when it receives an electrical signal; the focused laser passes vertically through the treatment end to reach the area to be treated.

[0066] The intersection point of the intersecting straight lines formed by multiple pairs of auxiliary electrodes coincides with the laser focal point optical path. When the treatment head is tilted, the current difference between the electrode pairs is linearly related to the deviation of the laser incident angle.

[0067] In one example, the laser can be a pulsed semiconductor laser, which generates a focused laser beam through a built-in collimating lens and focusing lens group. The treatment end is a cylindrical hollow structure with its end face perpendicular to the laser's output axis. A sapphire light-transmitting window is set inside, through which the laser beam penetrates vertically and is focused on the treatment area 1-5mm from the end face. Precise control of the focal depth can be achieved through a mechanical focusing mechanism.

[0068] This utility model also proposes a treatment system, which includes a control module, a current detection module, an auxiliary power output module, and a treatment head; The current detection module is connected to at least one pair of auxiliary electrodes. The current detection module detects the current value flowing through at least one pair of auxiliary electrodes and outputs it to the control module. The control module is used to control the auxiliary power output module to output detection electrical signals to one pair of auxiliary electrodes in at least one pair of auxiliary electrodes in sequence, and to output a characterization signal when the current value of all auxiliary electrodes is greater than the preset current value. The characterization signal is used to characterize that the treatment end is in parallel contact with the area to be treated.

[0069] It should be noted that the auxiliary power output module provides voltage to at least one pair of auxiliary electrodes, and the current detection module detects the current value flowing through the auxiliary electrodes and outputs it to the control module.

[0070] The control module first controls the auxiliary power output module to output voltage to the auxiliary electrode. The purpose of detecting the current in the auxiliary electrode is to confirm whether the auxiliary electrode forms a conductive circuit with the area to be treated, i.e., whether the electrode is in contact with the human skin. Since it is only necessary to determine whether a conductive circuit is formed, the auxiliary power output module outputs a detection electrical signal (the form of the electrical signal is not limited, but preferably DC voltage or low-frequency AC voltage). For ease of subsequent judgment, the auxiliary power output module can output DC voltage. With the voltage output from the auxiliary power output module to the auxiliary electrode remaining constant, the current value of the auxiliary electrode is related to the contact area between the auxiliary electrode and the human skin. To avoid errors, when the current flowing through the auxiliary electrode exceeds a preset current value, the control module outputs a characterization signal. This characterization signal indicates that the treatment end is in parallel contact with the area to be treated. Considering that the operator needs to perform or modify the actual operation based on the judgment result of whether the treatment end is in parallel contact with the area to be treated, the characterization signal can be output to the display module in the treatment system to facilitate the user's judgment of whether the treatment end is in parallel contact with the area to be treated.

[0071] The current detection module detects the current value of at least one pair of auxiliary electrodes respectively; When there are multiple pairs of auxiliary electrodes, it's easy to understand that these pairs, located around the treatment end, can be used to determine whether the treatment end is in parallel contact with the area to be treated. Using multiple pairs of auxiliary electrodes improves the accuracy of the determination. Specifically, while the multiple pairs of auxiliary electrodes are symmetrical about the center of the treatment end, their positions on the end face differ. Using multiple pairs of auxiliary electrodes, it can be determined whether the treatment end is in parallel contact with the area to be treated.

[0072] Multiple pairs of auxiliary electrodes are used for detection using a time-division multiplexing method. The multiple pairs of auxiliary electrodes are energized sequentially, and the current is collected. Specifically, one pair of auxiliary electrodes is energized first, and the current flowing through that pair is collected. After the current collection is completed, the next pair of auxiliary electrodes is energized, and the current is collected, until the detection of multiple pairs of auxiliary electrodes is completed. At any given time, only one pair of auxiliary electrodes is detected. Correspondingly, the treatment head may also have a switching circuit. The multiple output terminals of the switching circuit are connected to the electrodes used for outputting current in the multiple pairs of auxiliary electrodes, and the input terminal is connected to an auxiliary power output module. The switching circuit assists in the detection of multiple pairs of auxiliary electrodes by switching the electrodes connected to the auxiliary power output module.

[0073] The preset current value can be determined by researchers through experiments. The control module may include controllers such as MCUs, FPGAs, SOCs, or DCSs. The current detection module may include current sensors or current detection circuits.

[0074] It should be noted that existing radiofrequency microneedling methods primarily release energy at the tip of the microneedle to stimulate the target skin tissue when treating it. However, microneedles generally target skin tissue at a relatively deep depth. To achieve better treatment results and avoid the treatment tip from losing parallel contact with the skin during treatment, which could result in insufficient microneedle penetration, it is necessary to periodically monitor the positional relationship between the treatment tip and the target skin area during the treatment process.

[0075] The auxiliary power output module can output a detection electrical signal. As described in the above embodiments, the detection electrical signal is used to detect whether the treatment end is in parallel contact with the area to be treated. The current value collected by the auxiliary electrode depends on whether the treatment end is in contact with the area to be treated and the contact area between them. The larger the contact area, the smaller the equivalent impedance, and the larger the current value; whether the treatment end is in contact with the area to be treated determines whether the current value is zero. This invention does not limit the type of the detection electrical signal. It can be DC voltage or AC voltage. In another embodiment, this invention uses electrical signals to treat the area to be treated. Correspondingly, the auxiliary power output module can output both detection and treatment electrical signals. Considering the treatment effect, the treatment electrical signal can be a high-frequency electrical signal; for the purpose of distinguishing between the two, the detection electrical signal can be a low-frequency electrical signal. When the controller is activated based on the contact between the two auxiliary electrode pads and the surface of the tissue to be treated, the controller controls the radio frequency transmitter to release high-frequency electromagnetic radiation to the skin to be treated through the two auxiliary electrodes for treatment. The auxiliary electrode can continuously apply radiofrequency radiation to keep the area warm, or it can apply radiofrequency radiation simultaneously with the application of the detection electrical signal, or only when the DC voltage is off. Low- to mid-frequency electrical stimulation can relieve pain or promote muscle activity; high-frequency energy can produce a thermal effect on tissues, promoting collagen regeneration. In one example, the detection electrical signal is a low-frequency AC signal, which can be used to avoid electrophoresis caused by prolonged unidirectional current from a DC signal, leading to an imbalance in the distribution of positive and negative ions, and can also be used to distinguish it from high-frequency electromagnetic radiation used for therapeutic purposes.

[0076] In one embodiment, the auxiliary power output module includes: a detection signal output circuit, a treatment signal output circuit, and a switching circuit; The detection signal output circuit is used to output the detection current signal; the treatment signal output circuit is used to output the treatment current signal. The detection signal output circuit and the treatment signal output circuit are respectively connected to the input terminal of the switching circuit, and the output terminal of the switching circuit is respectively connected to at least one pair of auxiliary electrodes; The control module is connected to the control terminal of the switching circuit and is also used to control the switching circuit to switch between the conduction detection signal output circuit and the treatment signal output circuit according to a set frequency when the current value of the auxiliary electrode is greater than the preset current value. The current detection circuit includes a low-pass circuit, which is used to filter out the high-frequency signal output by the auxiliary electrode to avoid high-frequency signal interference.

[0077] It is easy to understand that after applying a detection electrical signal, if the treatment end comes into contact with the area to be treated, a detection current signal will exist in the conductive circuit. Correspondingly, the treatment signal output circuit outputs a treatment current signal, which travels through the conductive circuit to the area to be treated for treatment. The detection current signal can be a DC signal or a low-frequency AC signal, while the treatment current signal can be a high-frequency AC signal. To avoid the treatment current damaging the detection circuit, the detection current signal and the treatment current signal differ in frequency type.

[0078] It should be noted that applying a DC signal or a low-frequency AC signal to the auxiliary electrode facilitates monitoring and determining whether the microneedle is perpendicular to the treatment area; applying a high-frequency AC signal to the auxiliary electrode heats the chemical process. The control module first controls the switching circuit, connecting the DC output circuit to the auxiliary electrode. When the current value of the auxiliary electrode exceeds the preset current value, the control circuit switches between the conduction detection signal output circuit and the treatment signal output circuit according to the set frequency. During treatment, this simultaneously monitors the treatment posture of the radiofrequency treatment head and performs radiofrequency treatment on the skin tissue, improving the treatment effect of the radiofrequency microneedle and shortening the treatment time. The input of the switching circuit may include a single-pole double-throw switch.

[0079] Optionally, the treatment system further includes: a prompting module; the prompting module is connected to the control module; A prompting module is used to emit light and / or sound to indicate whether the treatment end is in parallel contact with the area to be treated; The control module is also used to output a first instruction to the prompting module when the current value of the auxiliary electrode is greater than the preset current value; when the prompting module receives the first instruction, it sends a first signal, which is used to indicate that the treatment end is in parallel contact with the area to be treated; the first signal is a light signal and / or a sound signal; The control module is also used to output a second instruction to the prompting module when the current value of the auxiliary electrode is less than or equal to the preset current value; when the prompting module receives the second instruction, it issues a second signal; the second signal is used to indicate that the treatment end is not in parallel contact with the area to be treated; the second signal is a light signal or a sound signal.

[0080] To quickly inform the operator of the treatment system whether the treatment end is parallel to the area to be treated, thereby improving operational efficiency, this invention provides the operator with simple light and / or sound signals.

[0081] The prompting module may include LED beads and / or a speaker. When the current value of the auxiliary electrode is greater than a preset current value, the control module sends a first command to the prompting module, and the prompting module sends a first signal. When the current value of the auxiliary electrode is less than the preset current value, the control module sends a second command to the prompting module, and the prompting module sends a second signal. It is easy to understand that, for differentiation, the first signal and the second signal are different; for example, the color of the light signal is different, and the content of the sound signal is different. More specifically, the first signal is a green light signal, and the second signal can be a red light signal. This invention does not limit the specific form of the first and second signals, which can be determined according to research and development needs.

[0082] Optionally, the treatment system also includes a power conversion module; The input of the power conversion module is connected to the mains power, and the output is connected to the control module, the prompting module, the auxiliary power output module, and the treatment device, respectively. The power conversion module is used to convert the mains power and provide power to the control module, the prompting module, the auxiliary power output module, and the treatment device. The auxiliary power output module is used to convert the electrical energy output by the power conversion module into a preset form of detection electrical signal.

[0083] The power conversion module may include a rectifier and an inverter; wherein the rectifier and inverter may be connected in series. The form of the detection electrical signal can be determined by the researchers; in particular, the detection electrical signal may be a DC voltage.

[0084] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made under the concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A treatment head, characterized in that, The treatment head includes a treatment head body, a treatment component, and at least one pair of auxiliary electrodes; The treatment head body has an end face; the treatment end of the treatment component and at least one pair of auxiliary electrodes are disposed on the end face; at least one pair of auxiliary electrodes are disposed around the treatment end; At least one pair of the auxiliary electrodes is used to contact the human body to form a conductive circuit; The treatment device is used to emit energy to the treatment area through the treatment end; The auxiliary electrode is also used to detect the current between the human body and the auxiliary electrode, so as to detect whether the treatment end is in parallel contact with the area to be treated.

2. The treatment head as described in claim 1, characterized in that, The auxiliary electrode protrudes from the end face.

3. The treatment head as described in claim 2, characterized in that, The auxiliary electrode protrudes 0mm-1mm from the end face.

4. The treatment head as described in claim 1, characterized in that, The number of auxiliary electrodes is multiple, and the straight lines formed by the multiple pairs of auxiliary electrodes intersect.

5. The treatment head as described in claim 4, characterized in that, The auxiliary electrode is elongated, with its short side positioned along the direction of the straight line formed by the auxiliary electrode.

6. The treatment head according to any one of claims 1 to 5, characterized in that, The treatment device includes a motor and a telescopic device equipped with radiofrequency microneedles; the motor is mechanically connected to the telescopic device; the radiofrequency microneedles are perpendicular to the end face; The motor is used to drive the telescopic device to extend / retract the radiofrequency microneedle through the treatment end.

7. The treatment head as described in claim 6, characterized in that, The distance between the auxiliary electrode and the treatment end is greater than a set value, so that the contact between the auxiliary electrode and the area to be treated is not affected by skin deformation caused by microneedles.

8. The treatment head according to any one of claims 1 to 5, characterized in that, The therapeutic component includes an acoustic window and an ultrasonic transducer; The acoustic window is disposed on the end face; the ultrasonic transducer is used to generate a corresponding focused ultrasonic signal when it receives a driving electrical signal, and the focused ultrasonic signal reaches the treatment area through the acoustic window.

9. The treatment head according to any one of claims 1 to 5, characterized in that, The treatment device includes a laser; The laser is used to emit a corresponding focused laser when it receives an electrical signal; the focused laser passes vertically through the treatment end to reach the area to be treated.

10. A treatment system, characterized in that, The treatment system includes a control module, a current detection module, an auxiliary power output module, and a treatment head as described in any one of claims 1 to 9; The current detection module is connected to at least one pair of the auxiliary electrodes, and the current detection module detects the current value flowing through at least one pair of the auxiliary electrodes and outputs it to the control module; The control module is used to control the auxiliary power output module to output detection electrical signals to at least one pair of auxiliary electrodes in sequence, and to output a characterization signal when the current value of all auxiliary electrodes is greater than a preset current value. The characterization signal is used to characterize that the treatment end is in parallel contact with the area to be treated.

11. The treatment system as claimed in claim 10, characterized in that, The detection electrical signal is a low-frequency AC signal.

12. The treatment system as claimed in claim 10, characterized in that, The auxiliary power output module includes: a detection signal output circuit, a treatment signal output circuit, and a switching circuit; The detection signal output circuit is used to output a detection current signal; the treatment signal output circuit is used to output a treatment current signal. The detection signal output circuit and the treatment signal output circuit are respectively connected to the input terminal of the switching circuit, and the output terminal of the switching circuit is respectively connected to at least one pair of the auxiliary electrodes; The control module is connected to the control terminal of the switching circuit and is also used to control the switching circuit to switch the connection and conduction of the detection signal output circuit or the treatment signal output circuit according to a set frequency when the current value of the auxiliary electrode is greater than the preset current value. The current detection circuit includes a low-pass circuit, which is used to filter out the high-frequency signal output by the auxiliary electrode to avoid high-frequency signal interference.

13. The treatment system as claimed in claim 10, characterized in that, The treatment system further includes: a prompting module; the prompting module is connected to the control module; The prompting module is used to emit light and / or sound to indicate whether the treatment end is in parallel contact with the area to be treated; The control module is further configured to output a first instruction to the prompting module when the current value of the auxiliary electrode is greater than a preset current value; when the prompting module receives the first instruction, it issues a first signal, the first signal being used to indicate that the treatment end is in parallel contact with the area to be treated; the first signal is a light signal and / or a sound signal; The control module is further configured to output a second instruction to the prompting module when the current value of the auxiliary electrode is less than or equal to the preset current value; the prompting module issues a second signal upon receiving the second instruction; the second signal is used to indicate that the treatment end is not in parallel contact with the area to be treated; the second signal is a light signal or a sound signal.

14. The treatment system as claimed in claim 13, characterized in that, The treatment system also includes a power conversion module; The input terminal of the power conversion module is connected to the mains power, and the output terminal is connected to the control module, the prompting module, the auxiliary power output module, and the treatment device, respectively; the power conversion module is used to convert the mains power and provide power to the control module, the prompting module, the auxiliary power output module, and the treatment device; The auxiliary power output module is used to convert the power output of the power conversion module into a preset form of detection electrical signal.

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