Maxillofacial region injection positioner for plastic surgery

By designing a maxillofacial injection locator including tulle mask, balls and soft Velcro, the problems of inaccurate depth control of injection and complex injection methods are solved, and the uniformity and accuracy of injections are achieved, reducing the risk of facial asymmetry and local inflammation.

CN120168787AInactive Publication Date: 2025-06-20TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202510361143.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-06-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During maxillofacial plastic surgery, inaccurate depth control of injections may lead to facial asymmetry, uneven filling, and even local inflammation or overreaction. At the same time, shallow fan injection techniques are highly required, and it is difficult for novice doctors to operate.

Method used

A maxillofacial syringe locator including a tulle mask, balls and soft Velcro were designed. Observe the local skin through the light transmittance of the tulle mask, fix the base with soft Velcro, and control the injection depth and angle through threaded tubes and balls to ensure uniformity and accuracy of the injection.

Benefits of technology

Effectively control the depth and angle of injection, reduce the risk of facial asymmetry and uneven filling, reduce the possibility of local inflammation and overreaction, simplify injection operations, and is especially suitable for novice doctors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of injection positioners, and discloses a maxillofacial region injection positioner for plastic surgery, which comprises a base, sponge layers are fixedly mounted on two sides of the bottom of the base, soft magic tapes are fixedly mounted at the bottoms of the sponge layers, and a gauze mask is fixedly adhered to the bottoms of the soft magic tapes. The gauze mask body is worn and fixed on the maxillofacial region of a patient, and a cover plate is movably connected to the top of the base. The gauze mask body, the balls, the soft hook-and-loop fasteners and the like are arranged, before use, the gauze mask body is worn on the face of the patient, and the base is pasted and fixed to the face of the patient through the soft hook-and-loop fasteners; a doctor observes the local skin of a patient through the threaded pipe and the penetrating hole to determine the insertion position, then the threaded pipe is rotated, and the distance between the bottom of the threaded pipe and the bottom of the threaded hole is controlled by observing the degree on the first ruler. Therefore, the effect of controlling the injection depth is achieved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of injection positioners, and particularly relates to a maxillofacial injection positioner for plastic and aesthetic surgery. Background Art

[0002] Currently, in order to restore skin elasticity, improve facial contours, fill wrinkles or facial depressions, most patients adjust the maxillofacial contours by injecting certain injections such as botulinum toxin, hyaluronic acid, collagen, etc. into the skin to achieve the effect of plastic and aesthetic surgery.

[0003] However, when performing plastic and aesthetic surgery on the chin of the maxillofacial region, it is necessary to inject injections to improve the facial contour for aesthetic purposes. Different types of injections have different uses. For example, botulinum toxin is mostly injected into the superficial muscles to reduce dynamic wrinkles, while hyaluronic acid is mostly used in the epidermis, dermis, and subcutaneous fat layer to fill wrinkles and improve facial contours. Therefore, there are certain requirements for the injection depth. If the depth is incorrect, not only the original effect cannot be achieved, but also facial asymmetry, uneven filling, and even problems such as local inflammation and overreaction may occur. At the same time, in order to create a natural contour, most methods are to keep the angle of the syringe needle at a certain angle (about 30 - 45 degrees) with the surface of the chin, and through the method of superficial fan-shaped injection, to ensure that the filler can be correctly distributed in the target area, preventing the filler from being unevenly distributed in the chin area, resulting in local bulges or depressions, thus affecting the overall contour of the chin. In addition, due to the method of superficial fan-shaped injection, the doctor needs to evenly rotate the syringe needle in a fan-shaped direction at the same inclined angle to ensure the uniformity of injection. Otherwise, it is easy to cause problems such as facial asymmetry and unevenness, so it has high requirements for the doctor's technique and is not convenient for novice doctors to actually operate. Summary of the Invention

[0004] The purpose of the present invention is to provide a maxillofacial injection positioner for plastic and aesthetic surgery to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A jaw and face injection locator for plastic and cosmetic surgery includes a base. Sponge layers are fixedly installed on both sides of the bottom of the base. A soft magic tape is fixedly installed at the bottom of the sponge layer. A thin gauze mask is adhesively fixed to the bottom of the soft magic tape. The thin gauze mask is worn and fixed on the patient's jaw and face. The top of the base is movably connected to a cover plate. A rotation hole is provided in the center of the top of the base. A card hole is provided in the center of the top of the cover plate. A ball is rotatably fitted in the rotation hole and the card hole. The ball passes through the base and the cover plate through the rotation hole and the card hole. A threaded hole is provided on the surface of the ball. A threaded tube is threadedly connected to the threaded hole. A through hole is provided in the center of the bottom of the threaded hole. A placement groove is provided on one side of the outer wall of the threaded tube. A first scale is fixedly installed in the placement groove.

[0006] Preferably, jacks are provided at the top of the base near its two ends. A fixing hole is provided in the inner wall of one side of the jack away from the ball. Plug plates are symmetrically installed at the bottom of the cover plate near its two ends. The plug plates are located directly above the jacks. An elastic plate is fixedly installed on one side of the plug plate away from the ball. The plug plate is inserted into the jack. The elastic plate is inserted into the fixing hole.

[0007] Preferably, the top diameter of the card hole is smaller than the maximum diameter of the ball. The inner diameter of the threaded hole is the same as the diameter of the through hole.

[0008] Preferably, a chute is provided on one side of the top of the base. One end of the chute communicates with the rotation hole. A plug rod is slidably arranged in the chute. The plug rod is L-shaped. A sliding hole is provided on the top of the cover plate. The sliding hole is located directly above the chute and away from the ball. One end of the plug rod away from the ball is inserted into the sliding hole. A spring is arranged between the sliding hole and the plug rod. The spring is away from the ball. One end of the spring is fixedly connected to the inner wall of the sliding hole. The plug rod is used to push the ball away from the sliding hole.

[0009] Preferably, a second rubber layer is fixedly installed on one side of the inner walls of the rotation hole and the card hole away from the plug rod. The second rubber layer is an arc-shaped layer. The second rubber layer is used to fill the gap between the rotation hole, the card hole and the outer wall of the ball. A first rubber layer is fixedly installed at one end of the plug rod close to the ball. The outer wall of the first rubber layer is in close contact with the ball.

[0010] Preferably, a plurality of slots are symmetrically and evenly spacedly provided on the outer wall on one side of the ball roller close to the insertion rod, and an observation slot is symmetrically provided on the outer wall on the side of the ball roller away from the insertion rod. The observation slot is an arc-shaped slot, and a second scale is fixedly installed inside the observation slot, and the second scale is an arc-shaped plate.

[0011] Preferably, the card slot is a trapezoidal slot, and the first rubber layer is embedded in the card slot and adheres to the inner wall of the card slot.

[0012] Preferably, the bottom of the rotating hole is conical, and lamp beads are symmetrically installed on both sides of the conical inner wall of the rotating hole, and the lamp beads are located above the sponge layer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The present invention is provided with a gauze mask, a ball bearing and a soft Velcro. Before use, the gauze mask is worn on the patient's face, and the base is fixed to the patient's face by sticking the soft Velcro. Since the gauze mask has a certain light transmittance, the doctor observes the patient's local skin through the threaded tube and the perforation to determine the insertion position, and then rotates the threaded tube to make it rotate inside the threaded hole. The distance between the bottom of the threaded tube and the bottom of the threaded hole is controlled by observing the degree on the first scale. When in use, the needle of the syringe is inserted into the inside of the threaded tube, and the syringe is blocked by the threaded tube and cannot move down, thereby achieving the effect of controlling the injection depth.

[0015] (2) The present invention is provided with a plug plate, a plug hole and an elastic plate, and since the cover plate and the base are movably fixed by plugging the plug plate and the plug hole, when cleaning, it is only necessary to press the elastic plate to disengage it from the fixing hole, and then lift the cover plate. The lifting of the cover plate eliminates any obstruction above the ball, and the ball can be taken out from the surface of the base. Then, the threaded tube is rotated to disengage it from the ball, and the disassembly is completed, so that the equipment can be thoroughly cleaned and disinfected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 This is an appearance diagram of the present invention;

[0018] Figure 3 It is a connection diagram of the ball and the threaded tube of the present invention;

[0019] Figure 4 This is an appearance diagram of the ball bearing of the present invention;

[0020] Figure 5 for Figure 1 A in the enlarged view;

[0021] Figure 6 forFigure 1 Enlarged view at position B in

[0022] In the figure: 1. Gauze mask; 2. Soft magic tape; 3. Sponge layer; 4. Base; 5. Cover plate; 6. Observation slot; 7. Threaded hole; 8. First scale; 9. Threaded tube; 10. Card slot; 11. Card hole; 12. Plug rod; 13. Slide hole; 14. Spring; 15. Slide groove; 16. Plug board; 17. Insertion hole; 18. Elastic plate; 19. First rubber layer; 20. Ball; 21. Perforation; 22. Placement groove; 23. Second scale; 24. Rotation hole; 25. Second rubber layer; 26. Fixed hole; 27. Lamp bead. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 4 As shown in the figure, the present invention provides the following technical solution: A maxillofacial injection locator for plastic and aesthetic surgery includes a base 4. On both sides of the bottom of the base 4, a sponge layer 3 is fixedly installed. At the bottom of the sponge layer 3, a soft magic tape 2 is fixedly installed. At the bottom of the soft magic tape 2, a gauze mask 1 is adhesively fixed. The gauze mask 1 is worn and fixed on the patient's maxillofacial region. The top of the base 4 is movably connected to a cover plate 5. And a rotation hole 24 is opened in the center of the top of the base 4. A card hole 11 is opened in the center of the top of the cover plate 5. A ball 20 is rotationally installed by fitting in the rotation hole 24 and the card hole 11. The ball 20 passes through the base 4 and the cover plate 5 through the rotation hole 24 and the card hole 11. And a threaded hole 7 is opened on the surface of the ball 20. A threaded tube 9 is threadedly connected inside the threaded hole 7. And a perforation 21 is opened in the center of the bottom of the threaded hole 7. On one side of the outer wall of the threaded tube 9, a placement groove 22 is opened. Inside the placement groove 22, a first scale 8 is fixedly installed.

[0025] Through the above technical solution, after the injection point is determined, the gauze mask 1 is worn and fixed on the patient's maxillofacial area, and then the base 4 is covered on the injection point on the patient's face, and the sponge layer 3 is used to adjust the bending degree of the soft Velcro 2, so that the soft Velcro 2 and the gauze mask 1 are tightly attached, and the base 4 is pasted and fixed on the patient's face through the soft Velcro 2. Since the gauze mask 1 has a certain light transmittance, the doctor can observe the patient's local skin through the threaded tube 9 and the perforation 21, confirm whether the threaded tube 9 is located above the preset insertion point, determine the insertion position, and then rotate the threaded tube 9. It is made to rotate inside the threaded hole 7, and the distance between the bottom of the threaded tube 9 and the bottom of the threaded hole 7 is controlled by observing the degree on the first scale 8. When in use, the needle of the syringe is inserted into the inside of the threaded tube 9, and the needle is inserted into the predetermined position through the threaded tube 9 and the perforation 21, while the syringe is blocked by the threaded tube 9 and cannot move further downward, thereby achieving the effect of controlling the injection depth. At the same time, the gauze mask 1 blocks the contact between the base 4 and the patient's face, preventing the problem of a small amount of blood contaminating the bottom after insertion, which is convenient for subsequent disinfection and cleaning. The whole device is small in size and easy to use.

[0026] Furthermore, a slide groove 15 is provided on one side of the top of the base 4, one end of the slide groove 15 is connected to the rotating hole 24, and a plug rod 12 is slidably arranged inside the slide groove 15, and the plug rod 12 is L-shaped. A slide hole 13 is provided on the top of the cover plate 5, and the slide hole 13 is located directly above the slide groove 15, and the slide hole 13 is away from the ball 20, and one end of the plug rod 12 away from the ball 20 is inserted into the inside of the slide hole 13, and a spring 14 is provided between the slide hole 13 and the plug rod 12, and the spring 14 is away from the ball 20, and one end of the spring 14 is fixedly connected to the inner wall of the slide hole 13, and the plug rod 12 is used to push the ball 20 away from the slide hole 13, and a second rubber layer 25 is fixedly installed on one side of the inner wall of the rotating hole 24 and the card hole 11 away from the plug rod 12 The second rubber layer 25 is an arc-shaped layer, and the second rubber layer 25 is used to fill the gap between the rotating hole 24, the card hole 11 and the outer wall of the ball 20. The first rubber layer 19 is fixedly installed on the end of the insertion rod 12 close to the ball 20. The outer wall of the first rubber layer 19 is in close contact with the ball 20. A plurality of card grooves 10 are symmetrically opened at equal intervals on the outer wall of the side of the ball 20 close to the insertion rod 12. An observation groove 6 is symmetrically opened on the outer wall of the side of the ball 20 away from the insertion rod 12. The observation groove 6 is an arc-shaped groove, and a second scale 23 is fixedly installed inside the observation groove 6. The second scale 23 is an arc plate. The card groove 10 is a trapezoidal groove. The first rubber layer 19 is embedded in the card groove 10 and is in contact with the inner wall of the card groove 10.

[0027] Please refer to Figures 1 - 3Before use, pull the insertion rod 12 to squeeze the spring 14 and move the first rubber layer 19 at its end to the outside of the slot 10 and break away from the contact with the ball 20, so that the ball 20 can rotate freely. Then, the ball 20 is driven to rotate by turning the threaded tube 9. By observing the second scale 23 degrees, the angle between the threaded tube 9 and the skin is adjusted. After reaching the predetermined inclination angle, release the insertion rod 12. Under the action of the elastic force of the spring 14, the insertion rod 12 immediately pushes the ball 20 to move in the direction of the second rubber layer 25, and finally embeds into the inside of the slot 10. The ball 20 is fixed by squeezing, fitting and the static friction of the two rubber layers. Then, observe with the naked eye whether the threaded tube 9 is aligned with the predetermined insertion point. Then, insert the needle of the syringe into the threaded tube 9, so that the insertion depth can be controlled while controlling the insertion angle for easy use.

[0028] Since the card slot 10 is a trapezoidal structure and the end of the insertion rod 12 is provided with a first rubber layer 19, when performing a shallow fan-shaped injection, the doctor's index finger and middle finger can be clamped on both sides of the threaded tube 9 and the threaded tube 9 can be driven by the syringe to synchronously drive the ball 20 to rotate inside the rotating hole 24, so that the inclined inner wall of the card slot 10 squeezes the first rubber layer 19 to deform it and push the insertion rod 12 to squeeze the spring 14, so that the needle tube rotates, which is convenient for use.

[0029] Furthermore, the bottom of the rotating hole 24 is conical, and lamp beads 27 are symmetrically installed on both sides of the conical inner wall of the rotating hole 24. The lamp beads 27 are located above the sponge layer 3. The top diameter of the card hole 11 is smaller than the maximum diameter of the ball 20, and the inner diameter of the threaded hole 7 is the same as the diameter of the through hole 21.

[0030] Please refer to Figures 1 - 3 The installed lamp bead 27 provides supplementary light for the bottom of the ball 20, which makes it convenient for the doctor to determine whether the insertion position is aligned. In addition, since the inner diameter of the threaded hole 7 is the same as the diameter of the perforation 21, the needle tube will not hit the inner wall when inserted, preventing the needle from being damaged during insertion.

[0031] Furthermore, a socket 17 is provided at the top of the base 4 near its two ends, and a fixing hole 26 is provided on the inner wall of the socket 17 on the side away from the ball 20. The cover 5 is symmetrically installed with plug plates 16 at the bottom near its two ends. The plug plates 16 are located directly above the socket 17, and an elastic plate 18 is fixedly installed on the side of the plug plate 16 away from the ball 20. The plug plate 16 is inserted into the socket 17, and the elastic plate 18 is inserted into the fixing hole 26.

[0032] Please refer to Figures 1 - 3, since the cover plate 5 and the base 4 are movably fixed by the insertion of the plug plate 16 and the plug hole 17, when cleaning, it is only necessary to press the elastic plate 18 to disengage it from the fixing hole 26, and then lift the cover plate 5 to complete the disassembly. Since the plug rod 12 is not fixedly connected to the spring 14, when the cover plate 5 is lifted, one end of the plug rod 12 also disengages from the inside of the slide hole 13, and the lifting of the cover plate 5 also makes it possible for there to be no obstacles above the ball 20, so that the ball 20 can be directly taken out of the rotating hole 24 on the surface of the base 4, and then the threaded tube 9 is rotated to disengage it from the ball 20, and the plug rod 12 is taken out of the slide groove 15 to complete the disassembly. The entire device is transformed into five parts, and the steps of disassembly and installation are relatively few. While it is convenient to use, the equipment can also be thoroughly cleaned and disinfected to reduce the problem of cross infection.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maxillofacial injection locator for plastic surgery, characterized in that The invention comprises a base (4), a sponge layer (3) is fixedly installed on both sides of the bottom of the base (4), a soft Velcro (2) is fixedly installed on the bottom of the sponge layer (3), a gauze mask (1) is adhesively fixed to the bottom of the soft Velcro (2), and the gauze mask (1) is worn and fixed on the patient's maxillofacial area, the top of the base (4) is movably connected with a cover plate (5), and a rotating hole (24) is opened in the center of the top of the base (4), and a clamping hole (11) is opened in the center of the top of the cover plate (5), and the rotating hole (24) and the clamping hole (11) are connected to each other. 1) is provided with a ball (20) for rotational engagement inside, the ball (20) being inserted through the base (4) and the cover plate (5) through the rotation hole (24) and the clamping hole (11), and a threaded hole (7) is provided on the surface of the ball (20), the threaded tube (9) is connected to the inner thread of the threaded hole (7), and a through hole (21) is provided at the center of the bottom of the threaded hole (7), a placement groove (22) is provided on one side of the outer wall of the threaded tube (9), and a first scale (8) is fixedly installed inside the placement groove (22).

2. The maxillofacial injection locator for plastic surgery according to claim 1, characterized in that The base (4) is provided with an insertion hole (17) at the top near the two ends thereof, and a fixing hole (26) is provided on the inner wall of the insertion hole (17) at a side away from the ball (20). The cover plate (5) is symmetrically provided with an insertion plate (16) at the bottom near the two ends thereof, and the insertion plate (16) is located directly above the insertion hole (17), and an elastic plate (18) is fixedly provided on a side of the insertion plate (16) away from the ball (20), and the insertion plate (16) is inserted into the inside of the insertion hole (17), and the elastic plate (18) is inserted into the inside of the fixing hole (26).

3. The maxillofacial injection locator for plastic surgery according to claim 2, characterized in that The top diameter of the clamping hole (11) is smaller than the maximum diameter of the ball (20), and the inner diameter of the threaded hole (7) is the same as the diameter of the through hole (21).

4. The maxillofacial injection locator for plastic surgery according to claim 3, characterized in that A slide groove (15) is provided on one side of the top of the base (4), one end of the slide groove (15) is connected to the rotating hole (24), and an insertion rod (12) is slidably arranged inside the slide groove (15), and the insertion rod (12) is L-shaped. A slide hole (13) is provided on the top of the cover plate (5), and the slide hole (13) is located directly above the slide groove (15), and the slide hole (13) is away from the ball (20), and one end of the insertion rod (12) away from the ball (20) is inserted into the inside of the slide hole (13), and a spring (14) is provided between the slide hole (13) and the insertion rod (12), and the spring (14) is away from the ball (20), and one end of the spring (14) is fixedly connected to the inner wall of the slide hole (13), and the insertion rod (12) is used to push the ball (20) away from the slide hole (13).

5. The maxillofacial injection locator for plastic surgery according to claim 4, characterized in that A second rubber layer (25) is fixedly mounted on the inner wall side of the rotating hole (24) and the clamping hole (11) away from the insertion rod (12); the second rubber layer (25) is an arc-shaped layer, and the second rubber layer (25) is used to fill the gap between the rotating hole (24), the clamping hole (11) and the outer wall of the ball (20); a first rubber layer (19) is fixedly mounted on one end of the insertion rod (12) close to the ball (20); the outer wall of the first rubber layer (19) and the ball (20) are in close contact with each other.

6. The maxillofacial injection locator for plastic surgery according to claim 5, characterized in that A plurality of slots (10) are symmetrically provided at equal intervals on the outer wall of the ball bearing (20) on one side close to the insertion rod (12), and an observation slot (6) is symmetrically provided on the outer wall of the ball bearing (20) on the side away from the insertion rod (12), wherein the observation slot (6) is an arc-shaped slot, and a second scale (23) is fixedly installed inside the observation slot (6), and the second scale (23) is an arc-shaped plate.

7. The maxillofacial injection locator for plastic surgery according to claim 6, characterized in that The card slot (10) is a trapezoidal slot, and the first rubber layer (19) is embedded in the interior of the card slot (10) and is in contact with the inner wall of the card slot (10).

8. The maxillofacial injection locator for plastic surgery according to claim 7, characterized in that The bottom of the rotating hole (24) is conical, and lamp beads (27) are symmetrically installed on both sides of the conical inner wall of the rotating hole (24), and the lamp beads (27) are located above the sponge layer (3).