A guiding device for deep facial bone filling

Abstract

The utility model discloses a kind of guiding device when facial deep layer bone phase fills, including patch, the edge of the patch is provided with support, the support is rotatably connected with connecting seat, and guide rod, the central axis of the guide rod is provided with the first through-hole for injection needle to pass, the guide rod is close to facial one end and is provided with the connecting rod extending along radial, the connecting rod and the connecting seat are rotatably connected, so that the angle of the guide rod and face is adjustable.The guiding device when facial deep layer bone phase fills, with the beneficial effect of accurate guidance reduces the risk of misoperation.

Description

Technical Field

[0001] This utility model relates to the field of medical aesthetic devices, specifically to a guiding device for deep facial bone grafting. Background Technology

[0002] Deep bone grafting, an important facial rejuvenation technique, aims to improve facial bone loss and contour defects caused by aging, congenital deficiencies, and other factors. The principle involves injecting specific filler materials, such as hyaluronic acid, autologous fat, and collagen, into the surface of deep facial bones or the periosteum to reshape the supporting structure of the facial bones. This, in turn, lifts soft tissue, improves facial sagging and hollowing, resulting in fuller, smoother facial lines and a more youthful appearance.

[0003] Fan-shaped injection is a commonly used technique for deep bone grafting. Through a single injection point, the filler material is evenly distributed in a fan-shaped pattern over the target area. This results in a larger coverage area and more uniform distribution, reducing the risk of overfilling or underfilling in certain areas and better shaping of the facial contours. For example, in areas such as the zygomatic arch ligament, preauricular ligament, and mandibular ligament, fan-shaped injection provides significant support for ligament depressions and can effectively improve facial sagging caused by ligament laxity.

[0004] Slight hand tremors are unavoidable during fan-shaped injection procedures. If these tremors are not effectively controlled, they can lead to unstable needle movement, affecting the injection direction and dosage control of the filler material. For example, when performing fan-shaped injections in delicate areas such as tear troughs, even slight tremors can cause the filler material to deviate from the target area, resulting in uneven injection. This reduces injection precision and prevents the desired cosmetic results from being achieved. Utility Model Content

[0005] To overcome the above-mentioned shortcomings in the prior art, this utility model provides a guiding device for accurate facial deep bone grafting that reduces the risk of misoperation.

[0006] The technical solution of this utility model is as follows:

[0007] A guiding device for deep facial bone grafting includes a patch, a support at the edge of the patch, and a connecting seat rotatably connected to the support.

[0008] The guide rod has a first through hole at its central axis for the injection needle to pass through. A connecting rod extending radially is provided at the end of the guide rod near the face. The connecting rod and the connecting seat are rotatably connected, so that the angle between the guide rod and the face is adjustable.

[0009] Preferably, an extension rod is provided on the side wall of the guide rod near the face end, and the connecting rod is provided at the end of the extension rod.

[0010] In any of the above embodiments, it is preferred that the end face of the guide rod near the face is beveled.

[0011] In any of the above embodiments, it is preferred that a damping plate is provided between the connecting rod and the connecting seat.

[0012] In any of the above embodiments, it is preferred that the guide rod has a flexible sleeve on the side near the face.

[0013] In any of the above embodiments, it is preferred that the upper surface of the patch is provided with an annular angle mark centered on the support.

[0014] In any of the above embodiments, it is preferred that the upper surface of the patch is provided with a T-shaped groove concentric with the annular angle mark, and two baffles are provided at the T-shaped groove, the two baffles cooperating to constrain the stroke of the guide rod.

[0015] In any of the above embodiments, it is preferred that the injection needle insertion end of the guide rod is provided with a first guide sleeve.

[0016] In any of the above embodiments, it is preferred that both ends of the guide rod are provided with a second guide sleeve with a conical surface, and the top of each second guide sleeve is provided with a second through hole that matches the diameter of the needle.

[0017] In any of the above embodiments, it is preferred that the patch is covered with a memory frame.

[0018] This invention relates to a guiding device for deep facial bone grafting. Through a rotating connection design of a patch, support, connecting seat, connecting rod, and guide rod, the angle between the guide rod and the face can be flexibly adjusted according to actual surgical needs. This better adapts to the filling angle requirements of different facial areas, improving injection accuracy. The first through-hole on the central axis of the guide rod provides a precise path for the injection needle. Adjusting the angle of the guide rod helps the doctor accurately control the needle's direction, reducing the risk of misoperation and ensuring that the filling material is accurately injected into the predetermined deep bone graft area. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of the guiding device for deep facial bone grafting according to the present invention.

[0020] Figure 2 This is a schematic diagram of a preferred embodiment of the guide device for deep facial bone grafting of this utility model, showing the cooperation between the support, connecting seat, and guide rod.

[0021] Figure 3 For example Figure 2 A schematic diagram of the AA cross-section of the guide rod in the embodiment shown.

[0022] Figure 4 This is a schematic diagram of an embodiment of the guide device for deep facial bone grafting of this utility model, showing the cooperation between the baffle and the patch.

[0023] Figure 5 for Figure 4 A schematic cross-sectional view of BB in the embodiment shown.

[0024] Explanation of the labels in the diagram:

[0025] 101-Patch; 102-Support; 103-Connector; 104-Connecting rod; 105-Guide rod; 106-Baffle; 107-T-slot; 108-Threaded pin; 109-Damping plate; 110-First guide sleeve; 111-Flexible sleeve; 112-Extension rod; 113-Second guide sleeve; 114-Memory frame. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Example 1:

[0029] like Figure 1As shown, patch 101 is attached to the vicinity of the marked injection point during use. Patch 101 provides direct or indirect support to the various functional components. Furthermore, the connection point between support 102 and patch 101 establishes a stable mechanical transmission path. During deep bone grafting using the fan-shaped injection method, when the syringe angle is adjusted by needle withdrawal, patch 101, in conjunction with support 102 and guide rod 105, provides elastic cushioning to the syringe needle. This disperses the complex stresses, such as instantaneous lateral and torsional forces generated by the needle at the puncture point, to the surrounding tissues through patch 101, avoiding the risk of tissue damage caused by localized stress concentration and preventing movement of the injection point.

[0030] Among them, patch 101 can be made of medical-grade silicone.

[0031] like Figure 1 , 2 As shown in Figures 4 and 5, one optional form of the support 102 is that it is formed by stamping two upwardly bent support pieces. Another optional form of the connection between the support 102 and the patch 101 is that the patch 101 has a groove at its edge, and the body of the support 102 is bonded to the groove by adhesive. Alternatively, during injection molding, the body of the support 102 is pre-placed into the injection mold, so that during injection molding, the body of the patch 101 covers the body of the support 102. To ensure the strong connection between the support 102 and the patch 101, the surface of the support 102 body may have several protrusions.

[0032] The rotatable connection between the connecting seat 103 and the support 102 allows the connecting seat 103 to swing up and down along the support 102.

[0033] like Figure 1 , 3As shown, a first through hole for the syringe needle to pass through is provided at the central axis of the guide rod 105. During use, the guide rod 105 guides and constrains the syringe needle. One optional connection between the guide rod 105 and the connecting seat 103 is as follows: a radially extending connecting rod 104 is provided at the end of the guide rod 105 near the body surface. The connecting seat 103 has a mounting hole, and the end of the connecting rod 104 has an internally threaded hole. The connecting rod 104 is hinged via the internally threaded hole in the body and the mounting hole in the connecting seat 103 through a pin, allowing the guide rod 105 to swing left and right along the support 102. When the guide rod 105 adjusts its angle left and right relative to the support 102, a damping plate 109 is provided between the connecting rod 104 and the connecting seat 103 to increase the friction between the guide rod 105 and the connecting seat 103. The damping plate 109 can be in the form of a rubber or silicone pad. During use, under the compression of the end cap of the threaded pin 108, the rubber or silicone pad dampens the rotation of the connecting rod 104 relative to the connecting seat 103.

[0034] In actual use, after adjusting the up and down position of the guide rod 105 according to the injection point marked before the operation, the patch 101 is attached to the appropriate position around the injection point. According to the preset fan-shaped injection trajectory, the doctor inserts the needle, withdraws the needle, and adjusts the injection angle in sequence according to experience until the injection at the point is completed.

[0035] Example 2:

[0036] Based on the embodiments, such as Figure 2 , 3 As shown, when the diameter of the guide rod 105 is large, to prevent inconsistent needle insertion points when the guide rod 105 is adjusted left and right relative to the support 102, an extension rod 112 is provided on the side wall of the guide rod 105 near the face. The connecting rod 104 is located at the end of the extension rod 112. The extension rod 112 allows the extension line of the connecting rod 104, the facial injection point, and the needle tip trajectory to coincide, ensuring that the needle insertion point is consistent when the guide rod 105 is adjusted left and right relative to the support 102 for fan-shaped injection.

[0037] To further prevent the defect of inconsistent needle insertion points when the guide rod 105 has a large diameter and the angle of the guide rod 105 relative to the support 102 is adjusted, the end face of the guide rod 105 near the face is set with a bevel.

[0038] Example 3:

[0039] Based on Example 1 or 2, such as Figure 2As shown, to prevent the end face of the guide rod 105 from scratching the face when the guide rod 105 is adjusted left and right along the support 102, a flexible sleeve 111 is provided on the side of the guide rod 105 near the face. The flexible sleeve 111 can be made of silicone or rubber.

[0040] Example 4:

[0041] Based on any of the embodiments in Examples 1-3, when performing deep bone grafting in the periorbital area around the eye socket (such as the tear trough, below the brow bone), the deep nasolabial groove and maxillary region, the temple region, and the deep periosteum of the chin, due to the complex blood vessel orientation and nerve distribution in the above areas, if the needle deviates slightly from the fan-shaped injection area, it is easy to cause the needle to pierce the blood vessel and cause thrombosis, or pierce the nerve and cause local facial paralysis.

[0042] like Figure 1 , 4 As shown, in this embodiment, the upper surface of the patch 101 is provided with an annular angle mark centered on the support 102. Additionally, the scale mark allows doctors to record the injection volume at the same needle insertion angle in the same areas on the left and right sides of the face, ensuring symmetry in the same areas after filling.

[0043] In this embodiment, as Figure 1 , 4 As shown in Figure 5, to further prevent the needle insertion angle from exceeding the preset fan-shaped area, a T-shaped groove 107 is provided on the upper surface of the patch 101 and concentric with the annular angle mark. Two baffles 106 are provided at the T-shaped groove 107. The two baffles 106 are snapped into the T-shaped groove 107 by a snap-fit ​​method. When performing deep bone grafting, the relative position of the two baffles 106 at the T-shaped groove 107 is adjusted according to the fan-shaped angle of the fan-shaped injection method at the injection point, so that the two baffles 106 constrain the stroke of the guide rod 105.

[0044] Example 5:

[0045] Based on any of the embodiments in Examples 1-4, such as Figure 3 As shown, when the inner diameter of the guide rod 105 is small, a first guide sleeve 110 is provided at the needle insertion end of the guide rod 105 to facilitate the insertion of the syringe needle into the guide rod 105.

[0046] Example 6:

[0047] Based on any of the embodiments in Examples 1-5, such as Figure 3 As shown, to prevent the syringe needle and the guide rod 105 from swinging relative to each other when the syringe needle is inserted into the guide rod 105, both ends of the guide rod 105 are provided with a second guide sleeve 113 with a conical surface, and the top of each second guide sleeve 113 is provided with a second through hole that matches the diameter of the needle.

[0048] Example 7:

[0049] Based on any of the embodiments in Examples 1-6, such as Figure 5 As shown, to ensure better adhesion between the patch 101 and the facial skin, a memory frame 114 is encapsulated within the patch 101. The memory frame 114 can be a metal frame made of iron wire, copper wire, or aluminum wire. The memory frame 114 and the patch 101 are formed by pre-placing the memory frame 114 into an injection mold, so that the patch 101 covers the memory frame 114 during the injection molding process.

[0050] In practical use, the patch 101 is bent according to the facial contour to be applied, and the shape of the patch 101 and the facial skin to be applied is similar under the action of the memory frame 114.

[0051] The above-described embodiments are merely preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.

Claims

1. A guiding device for deep facial bone grafting, characterized in that, Includes a patch (101), a support (102) is provided at the edge of the patch (101), and a connecting seat (103) is rotatably connected to the support (102), and The guide rod (105) has a first through hole at its central axis for the injection needle to pass through. A connecting rod (104) extending radially is provided at the end of the guide rod (105) near the face. The connecting rod (104) and the connecting seat (103) are rotatably connected, so that the angle between the guide rod (105) and the face is adjustable.

2. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, An extension rod (112) is provided on the side wall of the guide rod (105) near the face end, and a connecting rod (104) is provided at the end of the extension rod (112).

3. The guiding device for deep facial bone grafting as described in claim 2, characterized in that, The end face of the guide rod (105) near the face is set at an angle.

4. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, A damping plate (109) is provided between the connecting rod (104) and the connecting seat (103).

5. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, A flexible sleeve (111) is provided on the side of the guide rod (105) near the face.

6. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, The patch (101) has an annular angle mark on its upper surface centered on the support (102).

7. The guiding device for deep facial bone grafting as described in claim 6, characterized in that, The upper surface of the patch (101) is provided with a T-shaped groove (107) concentric with the annular angle mark. Two baffles (106) are provided at the T-shaped groove (107), and the two baffles (106) cooperate to constrain the stroke of the guide rod (105).

8. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, The needle insertion end of the guide rod (105) is provided with a first guide sleeve (110).

9. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, Both ends of the guide rod (105) are provided with a second guide sleeve (113) with a conical surface, and the top of each second guide sleeve (113) is provided with a second through hole that matches the diameter of the needle.

10. The guiding device for deep facial bone grafting as described in claim 1, characterized in that, The patch (101) contains a memory frame (114).

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