A method and system for evaluating the profile of a face using a non-surgical method of changing the profile
By establishing a facial contour assessment system based on aesthetic standards and a layered combined treatment method, the problem of inconsistent results in non-surgical facial contour improvement methods has been solved, achieving natural and refined facial reshaping effects.
Patent Information
- Application Number
- CN202610940933.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-27
- Publication Date
- 2026-08-25
AI Technical Summary
Existing non-surgical facial contouring methods lack systematic aesthetic design guidance, resulting in varying treatment effects from person to person, harsh contour transitions, and visual disharmony, making it difficult to achieve natural, delicate, and dynamic facial reshaping results.
A standardized evaluation system based on the proportions of inner and outer contours, facial folds, and contour lighting aesthetics was established. The face was divided into six types, and individualized highlighting and contouring zone marking schemes were developed. Focused ultrasound, radiofrequency, and laser equipment were used in a fixed order for layered combined treatment, combined with laser dot-matrix highlighting to create an optical illusion effect.
It achieves repeatability and precision in treatment, ensuring natural, refined, and harmonious clinical results, and realizing visual reshaping of facial features without altering the skeletal structure.
Smart Images
Figure CN122624846A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to facial contouring technology, specifically to a method and system for assessing changes in facial contour using non-surgical methods. Background Technology
[0002] Facial contour is a key factor influencing an individual's appearance. With the rapid development of medical aesthetic technology, more and more people are seeking to improve their facial shape through non-surgical methods. Traditional surgical methods, such as zygomatic arch reduction and mandibular angle reduction, while effective, are highly invasive, have slow recovery times, and carry high risks, including complications such as nerve damage and asymmetry. Therefore, non-surgical therapies using focused ultrasound, radiofrequency, and lasers are increasingly being applied to facial contour improvement, achieving a certain degree of facial reshaping through fat reduction, lifting, and tightening.
[0003] Existing non-surgical facial contouring methods share a common drawback: a lack of systematic aesthetic design guidance. Specifically, current techniques typically rely solely on the operator's personal experience to determine the treatment area before treatment, failing to establish a pre-operative assessment system and individualized marking methods based on objective aesthetic standards (such as inner and outer contour proportions, facial folds, and light and shadow contrast). This leads to significant differences in treatment results between different operators and easily results in issues such as harsh contour transitions, inappropriate highlight placement, and visual disharmony. It is difficult to achieve natural, refined, and dynamic facial contouring effects, and it also fails to meet the personalized needs of patients with different facial shapes. Summary of the Invention
[0004] The purpose of this invention is to provide a non-surgical method and system for evaluating facial contour changes, in order to solve the problems of inconsistent treatment effects, harsh contour transitions, and visual disharmony caused by the lack of systematic aesthetic design guidance in existing non-surgical facial contour improvement methods.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for assessing facial contour changes using a non-surgical approach, comprising the following steps:
[0006] Step S1: Preoperative aesthetic assessment, based on the proportion of inner and outer contours, facial folds and contour lighting aesthetics, to comprehensively assess the subject's face;
[0007] Step S2: Face shape classification and individualized treatment area marking. Face shapes are classified into six categories: round, square, oblong, equilateral triangle, inverted triangle, and rhombus. Highlighting and contouring areas are marked on the facial skin respectively.
[0008] Step S3: Non-surgical layered combined treatment, using focused ultrasound, radiofrequency ablation, and laser ablation sequentially to treat the marked area, specifically including:
[0009] First, a focused ultrasound device is used to lift and treat the deep fascia layer;
[0010] Secondly, radiofrequency devices are used to treat the middle fat layer and dermis for fat reduction and tightening.
[0011] Finally, laser equipment is used to brighten the superficial skin and highlight areas in a dotted manner to create an optical illusion effect.
[0012] Step S4: Postoperative care, including cold compresses, repair, sun protection, and dietary restrictions.
[0013] Furthermore, in step S2, for round or square faces, the highlighting area includes the forehead, bridge of the nose, center of the temples, brow bone, and cheekbone, while the contouring area includes the jawline and both sides of the cheeks.
[0014] Furthermore, in step S2, for a long face, the highlighting area includes both sides of the forehead, the outer side of the cheekbone, and the angle of the jaw, while the contouring area is a fan-shaped area from the cheekbone to the jaw.
[0015] Furthermore, in step S2, for an equilateral triangle face, the highlighting area includes the forehead, brow bone, above the frontal bone, and middle of the jaw, while the contouring area includes the jaw angle and lower cheek.
[0016] Furthermore, in step S2, for a diamond-shaped face, the highlighting area includes both sides of the forehead and both sides of the jaw, and the contouring area includes the area above the cheekbone and the lower edge of the cheekbone arch.
[0017] Furthermore, in step S3:
[0018] The focused ultrasound equipment uses probes with depths of 4.5 mm and 3.0 mm, and an energy density of 0.7~1.2 J / cm². 2 ;
[0019] The radio frequency device uses monopolar radio frequency, and the target surface temperature is 40~43℃;
[0020] The laser device uses a long-pulse 1064nm laser with an energy density of 15~30 J / cm². 2 The pulse width is 10~20ms.
[0021] Furthermore, in step S3, the focused ultrasound device first performs a linear scan to lift the jawline and the lower edge of the zygomatic arch, the radiofrequency device then performs a grid-like coverage to dissolve fat and tighten the contouring area, and the laser device finally performs dot-like irradiation on the marked highlighting area.
[0022] A facial contour assessment system that uses non-surgical methods to alter facial features includes an aesthetic assessment module, a treatment module, and a control module.
[0023] The aesthetic assessment module is used to classify the subject's face shape based on contour aesthetics and generate a marked map of the highlighting area and the contouring area;
[0024] The treatment module includes a focused ultrasound unit, a radio frequency unit, and a laser unit. The focused ultrasound unit is used for deep fascia lifting, the radio frequency unit is used for mid-layer fat reduction and tightening, and the laser unit is used for superficial brightening.
[0025] The control module is used to adjust the energy and depth of the focused ultrasound unit, the temperature of the radio frequency unit, and the energy density and pulse width of the laser unit according to the face shape and individual parameters of the subject, and to start each treatment unit in a fixed order.
[0026] Furthermore, the aesthetic evaluation module has a built-in standard template library for six face shapes and corresponding highlighting and contouring area coordinate data.
[0027] Furthermore, the control module is also connected to a temperature monitoring unit and an impedance monitoring unit, which are used to provide real-time feedback on treatment parameters and automatically adjust the output energy.
[0028] Compared with existing technologies, the present invention provides a non-surgical method and system for evaluating facial contour changes. By establishing a standardized evaluation system based on the proportion of inner and outer contours, facial folding degree, and contour lighting aesthetics, the face shape is clearly divided into six categories and individualized highlighting and contouring area marking schemes are formulated for each category. This eliminates subjective differences of the operator and ensures the repeatability and accuracy of the treatment.
[0029] By using focused ultrasound, radiofrequency and laser devices in a fixed order of “deep lifting first, then mid-layer lipolysis, and finally superficial brightening”, layered combined treatment is carried out to ensure that each step serves the overall facial contour aesthetic goal and effectively avoids harsh contour transitions and visual disproportion.
[0030] By using laser spot brightening to create an optical illusion, facial reshaping can be achieved without altering the skeletal structure, resulting in a natural, refined, and harmonious clinical effect. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0032] Figure 1 A flowchart illustrating the method provided in an embodiment of the present invention;
[0033] Figure 2This is a schematic diagram illustrating the composition of the functional modules of the system provided in an embodiment of the present invention. Detailed Implementation
[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0035] As attached Figure 1 To be continued Figure 2 As shown:
[0036] Example 1:
[0037] This invention provides a non-surgical method and system for assessing facial contour changes. Specifically, it was applied to a 35-year-old female subject with a round face, BMI 22.5, who complained of "round face, lack of three-dimensionality, and blurred jawline".
[0038] Step S1: Preoperative Aesthetic Assessment
[0039] Using an aesthetic assessment module, the subject's facial length / width ratio was measured to be approximately 1.1:1 based on the principle of inner and outer contour proportions. The width of the zygomatic arch was similar to the width of the mandibular angle, and the cheeks were full. Based on the principle of facial folding, the assessment determined that the facial blank area was relatively large and the folding degree was low. Based on the principle of contour lighting aesthetics, it was determined that highlight reflections needed to be increased at the frontal bone, bridge of the nose, central temporal region, brow bone, and zygomatic bone.
[0040] Step S2: Face shape classification and treatment area marking
[0041] The aesthetic assessment module automatically categorizes the face shape as "round face" and outputs a marker image. The operator then uses a medical skin pen to mark the subject's face according to this marker image.
[0042] Highlighted areas: center and sides of the frontal bone (2cm from the upper edge of the brow bone, about 3cm wide), bridge of the nose (about 1cm wide), center of the temporal region (about 1.5cm wide), upper edge of the brow bone (arc-shaped, 0.8cm wide), highest point of the cheekbone (circle with a diameter of 1.5cm), and facial fold line (0.5cm wide).
[0043] Contouring area: 1-2cm above the jawline and both sides of the cheeks (between the zygomatic arch and the jawline).
[0044] Step S3: Non-surgical stratified combined treatment
[0045] The control module automatically sets treatment parameters based on facial shape and subcutaneous fat thickness (8mm measured by ultrasound), and the therapist operates in the following fixed sequence:
[0046] Step 1: Focused Ultrasound Lifting
[0047] Using a focused ultrasound device (model: Ultherapy® or similar domestically produced device), first use a 4.5mm depth probe with an energy density of 1.0 J / cm². 2 A linear scan was performed along the mandibular border and the lower edge of the zygomatic arch, with 30 shots per side and a 2mm interval between the emission points; a 3.0mm depth probe was then used, with an energy density of 0.9 J / cm³. 2 A grid-like scan was performed on the contouring area, with 40 scans per side and a 2.5mm interval between scans. Subcutaneous temperature was monitored in real-time using ultrasound to ensure it did not exceed 45℃.
[0048] Step 2: Radiofrequency fat reduction and firming
[0049] Using a monopolar radiofrequency device (model: Thermage® or a similar domestic device), frequency 6MHz, treatment head area 4cm². 2 The target skin temperature was set at 42℃, and multiple overlapping treatments were applied to the contouring area, with a cumulative energy of 120kJ per area. The treatment endpoint was skin flushing, a tolerable feeling of warmth in the subject, and the absence of blisters.
[0050] Step 3: Laser spot brightening
[0051] A long-pulse 1064nm laser device was used, with a spot diameter of 10mm and an energy density of 25 J / cm². 2 The pulse width was 15ms. Point irradiation was applied to the marked highlight areas (frontal bone, bridge of the nose, central temporal region, brow ridge, and highest point of the cheekbone), with each point spaced approximately 5mm apart, for a total of 15 points per area. A cold air gun (outlet temperature approximately -5℃) was simultaneously activated during treatment to cool the epidermis.
[0052] Step S4: Postoperative care
[0053] Apply a cold compress for 15 minutes immediately after treatment, followed by a medical repair dressing (containing ceramides and hyaluronic acid). Avoid contact with water for 24 hours after treatment; use only a gentle cleanser for 48 hours. Do not use skincare products containing fruit acids, retinoic acid, salicylic acid, high-concentration vitamin C, or alcohol for one week; avoid saunas, hot yoga, and strenuous exercise. Sunscreen requirements: SPF ≥ 30, PA+++ or higher, reapply every 2-3 hours for one month. Maintain a light diet, avoid spicy foods, alcohol, and tobacco, and drink plenty of water.
[0054] Example 2: Treatment of subjects with long faces
[0055] This embodiment is basically the same as Embodiment 1, except that the subject has an elongated face, and the treatment area markings and energy parameters are different.
[0056] The subject was a 27-year-old female with a long face and a BMI of 19.5. Her chief complaint was "too long face, wide cheekbones, and square jaw angle." Preoperative assessment: Facial length / width ratio = 1.35:1, cheekbone width > jaw angle width, and jaw angle inflection point approximately 110°.
[0057] Step S2: Mark the differences:
[0058] The highlighting area includes both sides of the forehead (temporal region, from above the eyebrow tail to the hairline, approximately 3cm wide), the outer side of the cheekbone (an arc shape 0.5cm from the lower edge of the zygomatic arch), and below the angle of the mandible (at the inflection point, 1cm in diameter). The contouring area is an irregular fan-shaped region from the zygomatic arch to the angle of the mandible (upper boundary: lower edge of the zygomatic arch; lower boundary: mandibular border; anterior boundary: anterior edge of the masseter muscle; posterior boundary: in front of the ear).
[0059] Differences in parameters for step S3:
[0060] Focused ultrasound: 4.5mm depth, energy 1.1 J / cm² 2 Treatment was performed along the lower edge of the zygomatic arch and the lifting line of the mandible, 25 shots per side; depth 3.0 mm, energy 0.8 J / cm². 2 The grid scan of the fan-shaped contouring area was performed, with 80 shots on each side.
[0061] Radio frequency: Target temperature of the skin is 42℃, and the cumulative energy per side is 100kJ.
[0062] Laser: Only one intensive treatment was performed (repeated radiofrequency in week 8), with laser parameters the same as in Example 1, but the highlighting points were concentrated on both sides of the forehead and the angle of the jaw.
[0063] Example 3: Treatment of subjects with diamond-shaped faces
[0064] This embodiment is basically the same as Embodiment 1, except that the subject has a diamond-shaped face, and the treatment strategy involves a smaller area of fat dissolving and adjustments to the brightening area.
[0065] The subject was a 42-year-old female with a diamond-shaped face and a BMI of 21.0. Her chief complaint was "high cheekbones, sunken temples and cheeks." Preoperative assessment: The width of the zygomatic arch was significantly greater than the width of the forehead and temples and the width of the mandible. The mid-facial fold angle was approximately 65°, and the medial cheek area was sunken.
[0066] Step S2: Mark the differences:
[0067] The highlighting area includes the sides of the forehead (0.5cm inside the hairline, 2cm in diameter, circular shape), the sides of the jaw (the anterior 1 / 3 of the jaw body, 1.5cm in diameter), the outer side of the brow bone, and the highest point of the cheekbone (reduced to 0.8cm in diameter). The contouring area is the area above the cheekbone body and the lower edge of the cheekbone (area of fat accumulation).
[0068] Differences in parameters for step S3:
[0069] Focused ultrasound: using only a 3.0 mm depth, with an energy of 0.7 J / cm². 2 Low-density dot-matrix treatment (20 shots per side) was applied to the fat pad above the cheekbone to prevent excessive fat dissolution from worsening the depression; simultaneously, the treatment was applied to a depth of 4.5 mm with an energy of 1.0 J / cm². 2 Enhance the lifting of the lower edge of the zygomatic arch, 20 shots per side.
[0070] Radiofrequency: Target skin temperature 42℃, tightening the entire midface, with a cumulative energy of 90kJ per side.
[0071] Laser: Energy density 20 J / cm² 2 The pulse width is 10ms, and the forehead and sides of the jaw are highlighted in dots with a 5mm interval between each dot, and 10 dots per area.
[0072] Working Principle: This invention is based on the principles of facial contour aesthetics, including the proportions of inner and outer contours, facial folds, and the contrast of light and shadow, to accurately classify and individualize different face shapes. It uses focused ultrasound to lift the deep SMAS layer, tightening the facial support structure; radiofrequency devices to thermally act on the middle layer of fat and dermis, achieving fat reduction and collagen contraction; and laser devices to highlight superficial high-light areas, using optical illusion to alter the visual proportions of the face. These three devices work synergistically in a fixed order (deep lifting first, then middle-layer fat reduction and tightening, followed by superficial brightening) to achieve facial reshaping without surgery.
[0073] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A method for assessing facial contour changes using non-surgical means, characterized in that, Includes the following steps: Step S1: Preoperative aesthetic assessment, based on the proportion of inner and outer contours, facial folds and contour lighting aesthetics, to comprehensively assess the subject's face; Step S2: Face shape classification and individualized treatment area marking. Face shapes are classified into six categories: round, square, oblong, equilateral triangle, inverted triangle, and rhombus. Highlighting and contouring areas are marked on the facial skin respectively. Step S3: Non-surgical layered combined treatment, using focused ultrasound, radiofrequency ablation, and laser ablation sequentially to treat the marked area, specifically including: First, a focused ultrasound device is used to lift and treat the deep fascia layer; Secondly, radiofrequency devices are used to treat the middle fat layer and dermis for fat reduction and tightening. Finally, laser equipment is used to brighten the superficial skin and highlight areas in a dotted manner to create an optical illusion effect. Step S4: Postoperative care, including cold compresses, repair, sun protection, and dietary restrictions.
2. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S2, for round or square faces, the highlighting area includes the forehead, bridge of the nose, center of the temples, brow bone, and cheekbone, while the contouring area includes the jawline and both sides of the cheeks.
3. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S2, for a long face, the highlighting area includes both sides of the forehead, the outer side of the cheekbone, and the angle of the jaw, while the contouring area is a fan-shaped area from the cheekbone to the jaw.
4. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S2, for an equilateral triangle face, the highlighting area includes the forehead, brow bone, above the frontal bone, and middle of the jaw, while the contouring area includes the jaw angle and lower cheek.
5. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S2, for a diamond-shaped face, the highlighting area includes the sides of the forehead and the sides of the jaw, and the contouring area includes the area above the cheekbone and the lower edge of the cheekbone arch.
6. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S3: The focused ultrasound equipment uses probes with depths of 4.5 mm and 3.0 mm, and an energy density of 0.7~1.2 J / cm². 2 ; The radio frequency device uses monopolar radio frequency, and the target surface temperature is 40~43℃; The laser device uses a long-pulse 1064nm laser with an energy density of 15~30 J / cm². 2 The pulse width is 10~20ms.
7. The method for evaluating facial contour changes using a non-surgical approach according to claim 1, characterized in that, In step S3, the focused ultrasound device first performs a linear scan to lift the jawline and the lower edge of the zygomatic arch, the radiofrequency device then performs a grid-like coverage to dissolve fat and tighten the contouring area, and the laser device finally performs dot-like irradiation on the marked highlighting area.
8. A facial contour morphology assessment system for non-surgical alteration according to any one of claims 1-7, characterized in that, Includes aesthetic assessment module, treatment module, and control module; The aesthetic assessment module is used to classify the subject's face shape based on contour aesthetics and generate a marked map of the highlighting area and the contouring area; The treatment module includes a focused ultrasound unit, a radio frequency unit, and a laser unit. The focused ultrasound unit is used for deep fascia lifting, the radio frequency unit is used for mid-layer fat reduction and tightening, and the laser unit is used for superficial brightening. The control module is used to adjust the energy and depth of the focused ultrasound unit, the temperature of the radio frequency unit, and the energy density and pulse width of the laser unit according to the face shape and individual parameters of the subject, and to start each treatment unit in a fixed order.
9. A facial contour morphology assessment system according to claim 8, characterized in that, The aesthetic evaluation module has a built-in standard template library for six face shapes and corresponding highlighting and contouring area coordinate data.
10. A facial contour morphology assessment system for non-surgical alteration according to claim 8, characterized in that, The control module is also connected to a temperature monitoring unit and an impedance monitoring unit, which are used to provide real-time feedback on treatment parameters and automatically adjust the output energy.