Lift surgery analysis method and system

By using a facial image analysis system in the pulling surgery to calculate and evaluate the pulling force and distance of different pulling lines, the problems of uncertainty and high risk in the surgical results in the prior art are solved, providing scientific reference for preoperative data, reducing surgical risks and improving the controllability of results.

WO2025043528A1PCT designated stage expired Publication Date: 2025-03-06NAT TAIPEI UNIV OF TECH
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Patent Information

Application Number
PCT/CN2023/115731
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-30
Publication Date
2025-03-06

AI Technical Summary

Technical Problem

The existing stretching surgical techniques are different in experience of each doctor, which leads to the effectiveness of the surgical method that does not meet the client’s goals and may cause surgical risks, especially due to the uncertainty of the stretching force and the stretching distance, which may cause damage to muscle tissue.

Method used

Provide a method and system for raising the stretching surgery. By taking pictures of the client's face, using photo editing procedures to obtain the preoperative feature distance and postoperative feature distance, combined with the maximum stretching distance, use the pulling force calculation formula to calculate the pulling force and pulling distance of different pulling line arrangement methods, and generate an evaluation table to help doctors formulate scientific preoperative strategies and reduce surgical risks.

Benefits of technology

Through scientific analysis and evaluation, physicians provide accurate data references before surgery, help formulate reasonable lifting surgical strategies, reduce surgical risks, and improve the controllability of surgical results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a lift surgery analysis method and system. Specifically, the present invention relates to a lift surgery analysis method, comprising: providing at least one lift force calculation formula; capturing a face image; obtaining at least one lift parameter from the face image; on the basis of a maximum liftable distance, using the at least one lift force calculation formula to calculate the at least one lift parameter to obtain at least one lift force value corresponding to the at least one lift force calculation formula; generating an evaluation form; and individually listing a sorting number of at least one lift distance. The at least one lift parameter includes at least one pre-surgery feature distance, at least one post-surgery feature distance corresponding to the at least one pre-surgery feature distance, and the maximum liftable distance.
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Description

Lift surgery analysis method and system Technical Field

[0001] The present invention relates to an analysis method and system for face lift surgery. Background Art

[0002] Among existing plastic surgery techniques for improving sagging skin, using thread lifts to lift sagging facial tissue is a popular procedure. However, due to individual surgeon experience, the results may not meet the client's goals and may also pose risks.

[0003] Factors that cause surgical risks usually come from the lifting force and lifting distance. Excessive force and distance can cause damage to muscle tissue. Therefore, an analysis method is needed that can provide corresponding lifting force and distance assessment data based on customer needs.

[0004] Summary of the Invention

[0005] In order to solve the problems in the related art, the present invention provides a lift surgery analysis method and system.

[0006] In one aspect, the present invention provides a method for analyzing a face lift surgery, comprising: providing at least one lifting force calculation formula; capturing a facial image; obtaining at least one lifting parameter from the facial image; calculating the at least one lifting parameter using the at least one lifting force calculation formula based on a maximum possible lifting distance to obtain at least one lifting force value corresponding to the at least one lifting force calculation formula; generating an evaluation table, listing the at least one lifting force value and at least one lifting distance corresponding to each at least one lifting force value; and individually listing the at least one lifting distance in numerical order. The at least one lifting parameter includes at least one preoperative characteristic distance, at least one postoperative characteristic distance corresponding to each at least one preoperative characteristic distance, and the maximum possible lifting distance.

[0007] In another aspect, the present invention provides a face lift analysis system comprising: a server providing at least one lifting force calculation formula; a camera capturing a facial image; and a processor connected to the server and the camera, receiving the facial image and obtaining at least one lifting parameter. The at least one lifting parameter comprises at least one preoperative characteristic distance, at least one postoperative characteristic distance corresponding to the at least one preoperative characteristic distance, and a maximum possible lifting distance. The processor calculates the at least one lifting parameter using the at least one lifting force calculation formula based on the maximum possible lifting distance, obtaining at least one lifting force value corresponding to the at least one lifting force calculation formula, and generating an evaluation table listing the at least one lifting force value and the at least one lifting distance corresponding to the at least one lifting force value, and listing the at least one lifting distance in numerical order.

[0008] According to some specific embodiments of the present invention, the processor uses a photo editing program to edit the facial image to obtain the at least one lifting parameter.

[0009] According to some specific embodiments of the present invention, the processor respectively calculates at least one distance difference between the at least one preoperative characteristic distance and the corresponding at least one postoperative characteristic distance. If one of the at least one distance difference is less than the maximum lifting distance, the processor substitutes the distance difference into the at least one lifting force calculation formula for calculation to obtain at least one lifting force value corresponding to the distance difference.

[0010] According to some specific embodiments of the present invention, the at least one lifting force calculation formula corresponds to at least one lifting wire placement method.

[0011] According to some specific embodiments of the present invention, the wires used in the at least one wire pulling and placing method include: double wires entering and exiting a single hole, parallel double wires, V-shaped wires, U-shaped wires and single wires.

[0012] The face lift analysis system provided by this invention can capture a client's facial image through video recording. Based on the client's desired surgical outcome and post-surgery image, it calculates and analyzes the corresponding lifting distance and lifting force for different face lift suture placement methods. This provides physicians with a scientific basis before surgery, serving as a reference for formulating face lift strategies and reducing surgical risks.

[0013] Other purposes and advantages of the present invention are partially described in the following description or can be understood through the embodiments of the present invention. It should be understood that the above invention summary and the following embodiments are only exemplary and illustrative descriptions, and do not limit the present invention as claimed.

[0014] It should be understood that the foregoing description and the following detailed description are exemplary and explanatory only and are not intended to limit the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The foregoing summary of the invention and the following detailed description of the invention will be better understood when read in conjunction with the accompanying drawings. For the purpose of illustrating the present invention, there are shown in the accompanying drawings presently preferred embodiments.

[0016] FIG1 is a block diagram of a lift surgery analysis system according to the present invention.

[0017] 2A to 2E are schematic diagrams showing different wire-lifting and wire-placement methods according to the present invention.

[0018] FIG3 is a graph showing the calculation formula for the pulling force in the present invention.

[0019] FIG4 is a schematic diagram showing characteristic distances before and after a lift operation according to the present invention.

[0020] FIG5 is a schematic diagram showing the lifting distance and the lifting angle in the present invention.

[0021] The details of one or more embodiments of the present invention are set forth in the following description. Other features and advantages of the present invention will become apparent from the following detailed description of several specific embodiments and the appended claims. DETAILED DESCRIPTION

[0022] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art.

[0023] The present invention is further illustrated by the following examples, which are provided by way of illustration and not limitation.

[0024] As used herein, the article "a" or "an" refers to one or to more than one (ie, to at least one) of the grammatical object of the article. For example, "an element" refers to one element or more than one element.

[0025] The present invention provides a method for analyzing a lift operation, comprising:

[0026] Provide at least one formula for calculating the pulling force;

[0027] capturing a facial image;

[0028] obtaining at least one lifting parameter from the facial image;

[0029] Calculating the at least one lifting parameter using the at least one lifting force calculation formula according to a maximum lifting distance to obtain at least one lifting force value corresponding to the at least one lifting force calculation formula;

[0030] generating an evaluation table, wherein the evaluation table lists the at least one pulling force value and the at least one pulling distance corresponding to the at least one pulling force value; and

[0031] Individually listing the at least one lifting distance in order of numerical value;

[0032] The at least one lifting parameter includes at least one pre-operative characteristic distance, at least one post-operative characteristic distance corresponding to the at least one pre-operative characteristic distance, and the maximum lifting distance.

[0033] The present invention also provides a lift surgery analysis system, comprising:

[0034] A server providing at least one lifting force calculation formula;

[0035] a camera device for capturing a facial image; and

[0036] a processor connected to the server and the photographic device, receiving the facial image and obtaining at least one lifting parameter;

[0037] Among them, the at least one lifting parameter includes at least one preoperative characteristic distance, at least one postoperative characteristic distance corresponding to the at least one preoperative characteristic distance, and a maximum lifting distance. The processor uses the at least one lifting force calculation formula to calculate the at least one lifting parameter according to the maximum lifting distance, obtains at least one lifting force value corresponding to the at least one lifting force calculation formula, and generates an evaluation table, in which the at least one lifting force value and the at least one lifting distance corresponding to the at least one lifting force value are listed, and the sorting number of the at least one lifting distance is listed individually according to the order of the numerical value.

[0038] Each of the aforementioned devices may independently include a storage device, a processor, and / or a communication chip. Examples of storage devices include hard drives, flash drives, memory cards, and the like. Examples of processors include integrated circuits such as microcontroller units, microprocessors, digital signal processors, application-specific integrated circuits (ASICs), logic circuits, or other similar components, or combinations thereof. The communication chip may be implemented as Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), Wireless Fidelity (Wi-Fi), Bluetooth, Global System for Mobile Communications (GSM), or Personal Handyphone System (PHS).

[0039] To address the problems in the prior art, the present invention proposes a lift surgery analysis system capable of providing surgical evaluation. As shown in FIG1 , the lift surgery analysis system 100 of the present invention includes a server 110 , a camera 120 , and a processor 130 .

[0040] Server 110 provides at least one lifting force calculation formula, each corresponding to at least one lifting line placement method. In this embodiment, server 110 provides five lifting force calculation formulas, corresponding to the double lines with a single hole in and out shown in FIG2A , the parallel double lines shown in FIG2B , the V-shaped lines shown in FIG2C , the U-shaped lines shown in FIG2D , and the single line shown in FIG2E , as shown in Table 1. In each formula, x represents the lifting distance (in mm), and y represents the lifting force (in kgf).

[0041] Table 1 Thread lift formulas for different thread placement methods

[0042] Please refer to Figure 3, which is a graph of the lifting force calculation formula in Table 1. Curves A, B, C, D, and S correspond to single-hole inlet and outlet double lines, parallel double lines, V-shaped lines, U-shaped lines, and single lines, respectively.

[0043] The processor 130 connects to the server 110 and the camera 120, receives a facial image captured by the camera 120, and obtains at least one lifting parameter. To understand the client's desired appearance, the lift surgery analysis system 100 captures the client's facial image using the camera 120. The processor 130 then uses a photo editing program to edit the facial image to obtain the at least one lifting parameter. For example, the processor 130 utilizes commercial AI photo editing software to obtain the desired cosmetic appearance, thereby displaying the distance between the pre- and post-operative images. Therefore, the at least one lifting parameter includes at least one pre-operative characteristic distance, at least one post-operative characteristic distance corresponding to the at least one pre-operative characteristic distance, and a maximum lift distance. The processor 130 calculates at least one distance difference between the at least one pre-operative characteristic distance and the corresponding at least one post-operative characteristic distance. If one of the at least one distance difference is less than the maximum lift distance, the processor 130 substitutes the distance difference into the aforementioned lifting force calculation formula to obtain at least one lifting force value corresponding to the distance difference.

[0044] As shown in Figure 4, X is the preoperative characteristic distance between the coccyx of the two eyes, a is the preoperative characteristic distance between the upper lip bead and the profile, X' is the postoperative characteristic distance between the coccyx of the two eyes, a' is the postoperative characteristic distance between the upper lip bead and the profile, the difference between X and X' is the lifting distance between the coccyx of the two eyes, and the difference between a and a' is the lifting distance between the upper lip bead and the profile.

[0045] Please refer to Figure 5, which is a schematic diagram of the lifting distance and lifting angle in the present invention. θ represents the direction of the lifting line and the lifting angle of the self-set facial baseline. r represents the actual lifting distance. The displacement distance can be calculated by subtracting a' from the length a, i.e., (a'-a) = r*Cosθ. c represents the distance between the final exit point of the lifting line and point a', i.e., r*Sinθ. R represents the maximum lifting distance. Values ​​exceeding R will result in risks such as loose wire and tissue laceration. The lifting force corresponding to the lifting distance r is f, which can be calculated using the formula in Table 1 above (substituting r for x and f for y), as shown in Table 2 below. If the distance difference is less than the maximum lifting distance, the processor 130 will substitute the distance difference into the lifting force calculation formula to obtain the lifting force value corresponding to the distance difference.

[0046] Table 2 Parameters of the thread lift formula for different thread placement methods

[0047] The maximum pulling force corresponding to the maximum pulling distance R is F, which can be calculated using the formula in Table 1 (substitute R into x and F into y), and an evaluation table 3 is generated accordingly.

[0048] Table 3 Evaluation table corresponding to different suture placement methods

[0049] As shown in Table 3, the evaluation table provides reference data on the maximum wire pull force during surgeries corresponding to one embodiment. Exceeding this limit can cause tissue lacerations, internal inflammation, and swelling. Single-port double-thread surgeries involve muscle tissue encapsulation, leaving the wound only at the entry hole. The muscle tissue forms a tapered shape during pull. In this case, a pull force exceeding 0.38 kgf or a pull distance exceeding 5 mm can cause wire loosening, tissue lacerations, and internal muscle tissue inflammation and swelling. Parallel double-thread surgeries do not involve muscle tissue encapsulation, leaving the wound only at the entry hole. The muscle tissue forms a concave depression during pull. In this case, a pull force exceeding 0.55 kgf or a pull distance exceeding 4 mm can cause wire loosening. V- and U-shaped surgeries involve muscle tissue encapsulation, leaving the wound located between the entry hole and the base of the V or U shape. The muscle tissue forms a concave depression during pull. In this case, a pull force exceeding 0.55 kgf or a pull distance exceeding 5 mm can cause muscle tissue lacerations. Single-thread surgery does not enclose muscle tissue; the surgical wound is only at the insertion site. The muscle tissue forms a tapered shape when pulled. If the pulling force exceeds 0.34 kgf or the pulling distance exceeds 2.7 mm, the thread may become loose. A higher maximum pulling force indicates better retention. Exceeding the maximum pulling force or maximum pulling distance can cause the thread to become unhooked or cause tissue damage. This can be corrected by adding a puller thread.

[0050] In addition, in addition to listing the at least one pulling force value and the at least one pulling distance corresponding to the at least one pulling force value in the evaluation table, the at least one pulling distance is also listed individually in order of numerical value, and an evaluation table 4 is generated accordingly.

[0051] Table 4 Evaluation Form

[0052] As shown in Table 4, the evaluation table provides reference data on the maximum wire lifting force during surgery according to one embodiment. It also provides information on the number of needle insertion wounds, surgical technique difficulty, affected tissue area, number of wires used per area, and wound severity associated with different wire placement methods. The affected tissue area, number of wires used per area, and wound severity can be simulated by observing changes in the silicone gel after the lifting test.

[0053] The order of knotting requirements for cable placement is, from least to most, double cable with a single hole, parallel double cable, V- and U-shaped cable, and single cable. Single cable is more likely to sag due to its lack of support. Double cable, while not knotted, maintains some support in both the upper and lower directions.

[0054] Single-port double-suture surgeries involve muscle tissue envelopment, with the surgical wound located only at the entry hole and the number of needle wounds being 2. Parallel double-suture surgeries do not involve muscle tissue envelopment, with the surgical wound located only at the entry hole and the number of needle wounds being 2. V-shaped and U-shaped surgeries involve muscle tissue envelopment, with the surgical wound located at the entry hole and at the base of the V and U, and the number of needle wounds being 3. Single-suture surgeries do not involve muscle tissue envelopment, with the surgical wound located only at the entry hole and the number of needle wounds being 1.

[0055] The difficulty of the suture placement techniques is ranked from difficult to easy as follows: U-shaped suture, V-shaped suture, single-hole entry and exit double suture, parallel double suture, and single suture.

[0056] The order of suture placement, from most to least, is U-shaped, V-shaped, single-hole entry and exit double, parallel double, and single. The area affected by the placement is related to whether or not muscle tissue is covered, which also determines the number of sutures used.

[0057] The order of wire placement for the same area is as follows: single wire, double wires with a single inlet and outlet, parallel double wires, U-shaped wires, and V-shaped wires. The number of wires used affects the total number of wounds and the cost of the procedure.

[0058] The order of wound severity by suture placement method, from highest to lowest, is U-shaped, V-shaped, single-hole entry and exit double suture, parallel double suture, and single suture. Wound severity is related to the affected area, maximum lifting force, and lifting distance.

[0059] The face lift analysis system provided by this invention can capture a client's facial image through video recording. Based on the client's desired surgical outcome and post-surgery image, it calculates and analyzes the corresponding lifting distance and lifting force for different face lift suture placement methods. This provides physicians with a scientific basis before surgery, serving as a reference for formulating face lift strategies and reducing surgical risks.

[0060] While the present invention provides the preferred embodiments described above, they are not intended to limit the present invention. Any person skilled in the art may make modifications and variations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A lifting surgery analysis system, characterized in that: Include: A server, providing at least one lifting force calculation formula; a photographic device for capturing a facial image; and a processor connected to the server and the photographic device, receiving the facial image and obtaining at least one lifting parameter; Among them, the at least one lifting parameter includes at least one preoperative characteristic distance, at least one postoperative characteristic distance corresponding to the at least one preoperative characteristic distance, and a maximum lifting distance. The processor uses the at least one lifting force calculation formula to calculate the at least one lifting parameter according to the maximum lifting distance, obtains at least one lifting force value corresponding to the at least one lifting force calculation formula, and generates an evaluation table, in which the at least one lifting force value and the at least one lifting distance corresponding to the at least one lifting force value are listed, and the sorting number of the at least one lifting distance is listed individually according to the order of the value size.

2. The lifting surgery analysis system according to claim 1, characterized in that: The processor uses a photo editing program to perform photo editing on the facial image to obtain the at least one lifting parameter.

3. The lifting surgery analysis system according to claim 1, characterized in that: The processor respectively calculates at least one distance difference between the at least one pre-operative characteristic distance and the corresponding at least one post-operative characteristic distance. If one of the at least one distance difference is less than the maximum lifting distance, the processor substitutes the distance difference into the at least one lifting force calculation formula for calculation to obtain at least one lifting force value corresponding to the distance difference.

4. The lifting surgery analysis system according to claim 1, characterized in that: The at least one lifting force calculation formula corresponds to at least one lifting wire placement method.

5. The lifting surgery analysis system according to claim 4, characterized in that: The wires used in the at least one wire pulling and placing method include: double wires entering and exiting a single hole, parallel double wires, V-shaped wires, U-shaped wires and single wires.

6. A method for analyzing a lifting operation, characterized in that: Include: Provide at least one formula for calculating the pulling force; capturing a facial image; Obtaining at least one lifting parameter from the facial image; Calculating the at least one pulling parameter using the at least one pulling force calculation formula according to a maximum pulling distance to obtain at least one pulling force value corresponding to the at least one pulling force calculation formula; generating an evaluation table, in which the at least one pulling force value and at least one pulling distance respectively corresponding to the at least one pulling force value are listed; and Individually list the at least one lifting distance in order of numerical value; The at least one lifting parameter includes at least one pre-operative characteristic distance, at least one post-operative characteristic distance respectively corresponding to the at least one pre-operative characteristic distance, and the maximum lifting distance.

7. The method for analyzing lifting surgery according to claim 6, wherein: The method also includes: using a photo editing program to edit the facial image to obtain the at least one lifting parameter.

8. The method for analyzing lifting surgery according to claim 6, wherein: It also includes: respectively calculating at least one distance difference between the at least one pre-operative characteristic distance and the corresponding at least one post-operative characteristic distance; and in response to a distance difference among the at least one distance difference being smaller than the maximum lifting distance, bringing the distance difference into the at least one lifting force calculation formula for calculation to obtain at least one lifting force value corresponding to the distance difference.

9. The method for analyzing lifting surgery according to claim 6, wherein: The at least one lifting force calculation formula corresponds to at least one lifting wire placement method.

10. The method for analyzing lifting surgery according to claim 9, wherein: The wires used in the at least one wire pulling and placing method include: double wires entering and exiting a single hole, parallel double wires, V-shaped wires, U-shaped wires and single wires.

Citation Information

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