Subchin injection positioning rule

Abstract

The utility model provides a subchin injection positioning rule which comprises a body (1) which is in an axial symmetry irregular semicircle shape, a plurality of injection positioning holes (2) are formed in the body (1), and scales are respectively arranged on the left side and the right side of an arc-shaped edge (3) and an optional lower bottom edge (4) of the body along the symmetry axis. And scales of 1-2cm are arranged in the body (1) along the direction vertical to the arc tangent line in the interval of 3-7cm scales on the left side and the right side of the arc edge (3). The injection positioning rule is convenient to use, can be repeatedly used, does not cause adverse stimulation to the skin, can help medical staff measure and design a safe injection area, and effectively improves the convenience and safety of clinical operation.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to a submental injection positioning ruler. Background Art

[0002] With the improvement of living standards, people have higher requirements for their own body shape. The accumulation of fat under the chin (double chin) affects the appearance. In addition to diet adjustment and fitness, more and more people are turning to medical cosmetic technology.

[0003] In April 2015, the US FDA approved Kythera's deoxycholic acid injection for the treatment of moderate to severe facial contouring or excessive fullness caused by submental fat in adults. Deoxycholic acid injections are typically administered based on physician experience, targeting submental fat accumulation. Small doses are administered at multiple sites simultaneously. To avoid issues such as inaccurate injection site location and repeated injections in the same area, a submental injection guide is clinically needed.

[0004] In the prior art, CN216571073U provides a submental injection positioning patch for deoxycholic acid injections. This patch adheres a positioning ring to the submental skin surface for precise positioning, preventing injection deviation. However, in actual use, it was found that due to the large number of positioning rings, a small number of them would still shift during the adhesion process. Furthermore, the positioning rings adhered firmly to the skin and were difficult to remove. This was particularly problematic in summer, when the submental area was exposed, causing problems for patients in their daily lives. Forcible peeling or tearing could easily cause adverse reactions such as skin allergies and pain.

[0005] Furthermore, nerves run along both sides of the chin, requiring clinical staff to determine the safe injection zone for each patient. Kythera's clinical studies have shown that 2% of cases of marginal mandibular nerve injury occur during submental injections. This is likely due to misjudgment of the anatomical position of the neck and face, resulting in the needle contacting or approaching the marginal mandibular nerve, causing peripheral nerve demyelination or inflammation. Existing positioning scales have a single specification and lack a safe zone indicator, placing high demands on clinical staff and compromising clinical safety.

[0006] Therefore, there is a need for an improved submental injection positioning device to facilitate submental injection and medication administration, thereby improving the convenience and safety of clinical operations. Utility Model Content

[0007] The purpose of the utility model is to solve the above problems and provide a submental injection positioning ruler. The positioning ruler can effectively and accurately locate, does not need to be adhered to the skin, is easy to use, and is convenient for doctors to evaluate the injection area according to individual differences of patients. It is safer and has wider applicability.

[0008] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0009] A submental injection positioning ruler comprises: a main body (1), the main body (1) being provided with a plurality of injection positioning holes (2), and being characterized in that the main body (1) is an irregular semicircle symmetrical about a central axis, the main body (1) comprising an arcuate edge (3) and a lower bottom edge (4), and the edge of the main body (1) being provided with a scale.

[0010] For example, the arcuate edge (3) is provided with scales, or both the arcuate edge (3) and the lower base (4) are provided with scales.

[0011] In one embodiment, the length of the arcuate edge (3) is about 18 to 20 cm.

[0012] In one embodiment, the length of the lower base (4) is about 11 to 12 cm.

[0013] In one embodiment, the distance from the center point of the lower base (4) to the center point of the arc-shaped edge (3) is about 6 to 7 cm.

[0014] In one embodiment, the center point of the arc-shaped edge (3) is used as a starting point, and scales are marked on the left and right sides respectively.

[0015] In one embodiment, the scales on the left and right sides of the center point of the arc-shaped edge (3) are in the range of 3 to 7 cm (for example, at 3, 4, 5, 6, and 7 cm respectively), and scales are marked in the direction perpendicular to the arc tangent into the body (1), and the scales are about 1 to 2 cm.

[0016] In one embodiment, scales are marked on the left and right sides respectively, starting from the center point of the lower base (4).

[0017] In one embodiment, the injection positioning holes are arranged in multiple rows and columns on the body.

[0018] In one embodiment, the injection positioning hole is circular with a diameter of 3±1 mm.

[0019] In one embodiment, the distance between the centers of two adjacent injection positioning holes is 10 mm.

[0020] In one embodiment, the injection positioning holes are arranged in 6 rows in a symmetrical manner about the central axis, with the 1st to 3rd rows each containing 11 injection positioning holes, the 4th row each containing 7 to 9 injection positioning holes, the 5th row containing 5 to 7 injection positioning holes, and the 6th row containing 5 injection positioning holes.

[0021] In one embodiment, the body (1) is made of a soft material. For example, the body material can be selected from PVC and silicone. Preferably, the positioning ruler is transparent.

[0022] In one embodiment, the injection positioning ruler has a thickness of 0.1 to 5 mm, preferably 0.2 to 2 mm.

[0023] In one embodiment, the injection positioning ruler can be disposable or reusable.

[0024] Beneficial effects of the utility model:

[0025] 1) The injection positioning ruler is attached to the patient's subchin skin when in use and can be easily removed after marking with a sterile marking pen. It does not need to be adhered to the skin surface, avoiding the pain and discomfort of the patient caused by tearing off the adhesive layer after injection. 2) The injection positioning ruler can help medical staff evaluate the treatment area; measure and design the safe injection area according to the scale markings of the injection positioning ruler. If the positioning mark is inaccurate, it can be re-marked, which is easy to operate. 3) The injection positioning ruler is suitable for people with different subchin areas, has a wider applicability, and can be designed to be reused, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0028] Figure 2 It is a structural schematic diagram of another embodiment of the utility model;

[0029] Explanation of the accompanying symbols: 1. Main body; 2. Injection positioning hole; 3. Arc edge, the center point is A; 4. Bottom edge, the center point is B. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The subchin injection positioning patch according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 As shown, the submental injection positioning ruler includes a body (1) which is an irregular semicircle symmetrical about a central axis, and a plurality of injection positioning holes (2) are provided on the body (1). The body (1) includes an arcuate edge (3) and a lower bottom edge (4). The edge of the body (1) is marked with scale.

[0033] The length of the arc-shaped edge (3) is about 18 to 20 cm, and the center point is marked as A.

[0034] The length of the lower bottom edge (4) is about 11 to 12 cm; the center point is marked as B.

[0035] The distance from the center point B of the lower bottom edge (4) to the center point A of the arc-shaped edge (3) is about 6 to 7 cm.

[0036] Starting from the center point A of the arcuate side (3), scales are marked on the left and right sides of the arcuate side. Optionally, starting from the center point B of the lower base (4), scales are marked on the left and right sides of the lower base (not shown).

[0037] Mark the scale in the 3 to 7 cm interval (for example, at the positions of 3, 4, 5, 6, and 7 cm) on the left and right sides of the center point A of the arc-shaped edge (3) in the direction perpendicular to the arc tangent toward the inside of the main body (1). The scale is marked to 1 to 2 cm, preferably to 2 cm or more. The inventors consulted major medical works and found in combination with clinical trial case evaluation that the injection point is preferably more than 2 cm away from the lower edge of the mandible to avoid nerve damage caused by injection into the mandibular marginal nerve area. In the injection positioning ruler, the area with scales inward in the direction perpendicular to the arc tangent can define a fan-shaped area as a safety warning area, which can effectively prompt and help medical staff to evaluate the safe injection area during clinical operations, measure and design the injection area, and improve the safety of clinical operations.

[0038] The injection positioning holes (2) are arranged in multiple rows and columns on the body. The injection positioning holes (2) are circular with a diameter of 3±1 mm. The distance between the centers of two adjacent injection positioning holes is 10 mm.

[0039] The injection positioning holes (2) are arranged in a central axis symmetrical manner, with a total of 6 rows. The first to third rows each contain 11 injection positioning holes, the fourth row each contains 7 to 9 injection positioning holes, the fifth row contains 5 to 7 injection positioning holes, and the sixth row contains 5 injection positioning holes.

[0040] The body (1) is made of a soft material, such as PVC or silicone. The body (1) is substantially transparent. The thickness of the body (1) is 0.1 to 5 mm, preferably 0.2 to 2 mm.

[0041] The injection positioning ruler can be disposable or reusable.

[0042] The submental injection positioning ruler provided by the present invention is an axisymmetric semicircle (an irregular semicircle, not necessarily a standard semicircle), which can fit the patient's submental skin surface. A sterile marking pen is used to make injection marks on the corresponding positioning holes. It does not need to adhere to the skin surface and will not cause discomfort to the patient due to peeling. The corresponding positioning holes are marked with a sterile marking pen, which can be easily erased and can be re-marked when the positioning marks are inaccurate, making the operation convenient. In addition, medical staff can measure the injection area and design the safe area according to the scale markings on the positioning ruler, selectively avoid the injection danger zone, and avoid causing damage to the mandibular nerve area. The submental injection positioning ruler is suitable for people with different submental areas, has a wider applicability, and can also be designed to be reused, which is more environmentally friendly.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A submental injection positioning ruler, comprising: The main body (1) is provided with a plurality of injection positioning holes (2), characterized in that the main body (1) is a semicircle symmetrical about a central axis, not necessarily a standard semicircle, the main body (1) includes an arcuate edge (3) and a lower bottom edge (4), and the edge of the main body (1) is provided with a scale.

2. The submental injection positioning ruler according to claim 1, wherein the arcuate edge (3) is provided with scales, or both the arcuate edge (3) and the lower bottom edge (4) are provided with scales.

3. The submental injection positioning ruler according to claim 1, wherein the length of the arcuate side (3) is approximately 18 to 20 cm, the length of the lower base (4) is approximately 11 to 12 cm, and the distance from the center point of the lower base (4) to the center point of the arcuate side (3) is approximately 6 to 7 cm.

4. The submental injection positioning ruler according to claim 1, wherein the center point of the arc-shaped edge (3) is used as a starting point, and scales are marked on the left and right sides respectively.

5. The submental injection positioning ruler according to claim 1, wherein the scales on both sides of the center point of the arc-shaped edge (3) are marked in the range of 3 to 7 cm, and the scales are marked in the direction perpendicular to the arc tangent toward the inside of the body (1).

6. The submental injection positioning ruler according to claim 1, wherein the center point of the lower bottom edge (4) is used as the starting point, and scales are marked on the left and right sides respectively.

7. The submental injection positioning ruler according to claim 1, wherein the injection positioning holes (2) are arranged in multiple rows and columns on the body (1).

8. The submental injection positioning ruler according to claim 1, wherein the spacing between the centers of the injection positioning holes (2) is 10 mm.

9. The submental injection positioning ruler as described in claim 1, wherein the injection positioning holes (2) are arranged in 6 rows in a central axis symmetrical manner, the first to third rows each contain 11 injection positioning holes, the fourth row contains 7 to 9 injection positioning holes, the fifth row contains 5 to 7 injection positioning holes, and the sixth row contains 5 injection positioning holes.

10. The submental injection positioning ruler as claimed in claim 1, wherein the injection positioning ruler is made of soft material.

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