Inferior alveolar nerve anesthesia indicator

Abstract

The utility model relates to the technical field of medical instruments, in particular to an inferior alveolar nerve anesthesia indicator. The two sides of the connecting rod are connected with indicating rods. The two indicating rods are symmetrically arranged on the two sides of the base station respectively; an indicator connecting seat is fixed on the base station. When the odontoscope is used, the indicator connecting seat is fixedly connected with the odontoscope handle; the two indicating rods are respectively positioned at the highest point of a condyle process and the lowest point of a mandibular angle incisura, so that the indicator connecting seat is directly aligned and positioned with a mandibular small tongue, and the anesthesia effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an inferior alveolar nerve anesthesia indicator. Background Technology

[0002] When performing extraction of the mandibular third molar, dentists often prefer local anesthesia. Local anesthesia refers to the use of local anesthetics to temporarily block the sensory conduction function of nerve endings and fibers in a specific area of ​​the body, thereby temporarily eliminating pain sensation in that area. Inferior alveolar nerve block anesthesia is the most commonly used local anesthesia method. It is based on the innervation of the mandibular nerve in the mandibular region and the anatomical course of its branches. The anesthetic is achieved by injecting local anesthetic drugs into the area near the nerve.

[0003] The uvula is often considered an important landmark for inferior alveolar nerve block anesthesia. When anesthetic is injected into the vicinity, the inferior alveolar nerve can be anesthetized. There are two main methods of anesthesia: one is the open-mouth injection method, which is generally performed by medical staff estimating the location of the uvula based on experience and oral mucosal landmarks. For patients with limited mouth opening, enlarged tongue, or tension that prevents cooperation, the success rate of anesthesia on the first attempt is low, and the effect is difficult to guarantee; the other is the closed-mouth injection method. In this method, the needle insertion point is not clear, making it difficult to confirm that the needle has entered the target area. If the needle separates, removing the dislodged instrument is extremely difficult.

[0004] Therefore, it is necessary to design a device for assisting in anesthesia injection. Utility Model Content

[0005] The purpose of this invention is to provide an inferior alveolar nerve anesthesia indicator in response to the defects and deficiencies of the existing technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The present invention discloses an inferior alveolar nerve anesthesia indicator, comprising a connecting rod; a base fixed on the connecting rod; indicator rods connected to both sides of the connecting rod; two indicator rods symmetrically arranged on both sides of the base; and an indicator connecting seat fixed on the base.

[0008] Furthermore, both ends of the connecting rod are provided with external threads; the two sections of the external threads are in opposite directions; a first nut is fixed on each of the indicator rods; the first nut is threaded onto the two sections of the external threads respectively.

[0009] Furthermore, a fixing rod is fixed on the indicator connecting seat; a second positioning sleeve is fixed on the fixing rod; the second positioning sleeve is rotatably connected to the connecting rod; an optical axis section matching the inner hole of the positioning sleeve is provided in the middle of the connecting rod; the positioning sleeve is fitted on the optical axis section; limit sleeves are provided on both sides of the positioning sleeve on both sections of the connecting rod; the two limit sleeves are respectively attached to both sides of the positioning sleeve.

[0010] Furthermore, the inner holes of the limiting sleeves are all provided with internal threads; the internal threads in the two limiting sleeves are respectively threaded onto the external threads of the two rod sections.

[0011] Furthermore, the surface of the indicator connector is provided with an arc-shaped surface.

[0012] Furthermore, a handle is fixed to one end of the connecting rod; a handle glove is fitted over the handle.

[0013] With the above structure, the beneficial effects of this utility model are as follows: In use, the indicator connector is connected and fixed to the dental mouth mirror handle; the two indicator rods are respectively positioned at the highest point of the condyle and the lowest point of the mandibular angle notch, so the indicator connector is directly aligned and positioned with the horizontal plane of the lingula. After the needle is inserted horizontally from this plane to touch the anterior edge of the mandibular ramus, it can be inserted 1.5cm along the inner side of the mandibular ramus to reach the area where the lingula is located. A satisfactory anesthetic effect can be obtained by injecting anesthetic here. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural diagram of the connecting rod;

[0016] Figure 3 This is a structural diagram of the indicator rod;

[0017] Figure 4 This is a structural diagram of the base;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Connecting rod; 101. External thread of the rod; 102. Handle; 103. Optical shaft section; 2. Handle glove;

[0020] 3. Indicator rod; 301. First nut; 4. Limiting sleeve; 5. Base; 501. Positioning sleeve;

[0021] 502, indicator connector; 50201, curved surface; 503, fixing rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, the inferior alveolar nerve anesthesia indicator of this utility model includes a connecting rod 1; a base 5 is fixed on the connecting rod 1; indicator rods 3 are connected to both sides of the connecting rod 1; the two indicator rods 3 are symmetrically arranged on both sides of the base 5; and an indicator connecting seat 502 is fixed on the base 5.

[0024] Since the distance from the highest point of the maxillary condyle to the supraorbital point of the mandibular lingula is approximately equal to the distance from the lowest point of the mandibular angle notch to the supraorbital point of the mandibular lingula, it can be assumed that the horizontal plane containing the midpoint of the vertical direction between the highest point of the maxillary condyle and the lowest point of the mandibular angle notch is the horizontal plane containing the supraorbital point of the mandibular lingula. Therefore, by locating the highest point of the maxillary condyle and the lowest point of the mandibular angle notch, the plane containing the mandibular lingula can be located vertically.

[0025] When in use, connect and fix the indicator connector 502 to the dental mouth mirror handle; the two indicator rods 3 are respectively positioned at the highest point of the condyle and the lowest point of the mandibular angle notch, so the indicator connector 502 is directly aligned with the lingula. After inserting the needle horizontally from this plane to touch the anterior edge of the mandibular ramus, insert the needle 1.5cm along the inner side of the mandibular ramus to reach the area where the lingula is located. A satisfactory anesthetic effect can be obtained by injecting anesthetic here.

[0026] In a preferred embodiment of this utility model, both ends of the connecting rod 1 are provided with external threads 101; the directions of the two external threads 101 are opposite; a first nut 301 is fixed on each of the indicator rods 3; the first nut 301 is threadedly connected to the two external threads 101 respectively; the directions of the two external threads 101 are opposite, so when the connecting rod 1 is rotated, the two first nuts 301 will move closer to each other or further away from each other to adjust the distance between the two indicator rods 3, ensuring that the two indicator rods 3 are always symmetrical on both sides of the base 5, and can match different face shapes, so that the two indicator rods 3 are always aligned with the highest point of the condyle and the lowest point of the mandibular notch respectively; it can be adapted to patients with different face shapes and sizes.

[0027] In a preferred embodiment of this utility model, a fixing rod 503 is fixed on the indicator connecting seat 502; a second positioning sleeve 501 is fixed on the fixing rod 503; the second positioning sleeve 501 is rotatably connected to the connecting rod 1; an optical axis section 103 matching the inner hole of the positioning sleeve 501 is provided in the middle of the connecting rod 1; the positioning sleeve 501 is sleeved on the optical axis section 103; limit sleeves 4 are provided on both sides of the two connecting rod sections 1; the two limit sleeves 4 are respectively attached to both sides of the positioning sleeve 501;

[0028] The positioning sleeve 501 is attached to the limiting sleeve 4, so that the positioning sleeve 501 can only rotate and cannot slide along the circumferential direction of the connecting rod 1. The positioning sleeve 501 is paired with the optical axis section 103, so that the positioning sleeve 501 can rotate freely on the connecting rod 1.

[0029] In a preferred embodiment of this utility model, the inner holes of the limiting sleeves 4 are all provided with internal threads; the internal threads in the two limiting sleeves 4 are respectively threaded onto the external threads 101 of the two rod sections; the limiting sleeves 4 can rotate on the internal threads to adjust the position of the positioning sleeve 501, so that the base 5 is centered on the connecting rod 1, and the indicator rods 3 are symmetrically arranged on both sides of the base 5; moreover, by adjusting the force of the limiting sleeves 4 pressing on the positioning sleeves 501, the degree of freedom of rotation of the base 5 can be adjusted.

[0030] As a preferred embodiment of the present invention, the surface of the indicator connector 502 is provided with an arc-shaped surface 50201; the arc of the arc-shaped surface 50201 is used to match with the dental endoscope handle, so as to facilitate fixing the indicator connector 502 to the dental endoscope handle.

[0031] In a preferred embodiment of this invention, a handle 102 is fixed to one end of the connecting rod 1; a handle glove 2 is fitted over the handle 102; the handle glove 2 has a handle hole that matches the handle 102, and the handle 102 is connected to the handle glove 2 by fitting it through the handle hole onto the handle 102. When the connecting rod 1 rotates, only the handle glove 2 needs to be rotated.

[0032] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A subalveolar nerve anesthesia indicator, characterized in that: It includes a connecting rod (1); a base (5) is fixed on the connecting rod (1); an indicator rod (3) is connected to both sides of the connecting rod (1); the two indicator rods (3) are symmetrically arranged on both sides of the base (5); an indicator connecting seat (502) is fixed on the base (5).

2. The inferior alveolar nerve anesthesia indicator according to claim 1, characterized in that: Both ends of the connecting rod (1) are provided with external threads (101); the two external threads (101) are in opposite directions; a first nut (301) is fixed on each of the indicator rods (3); the first nut (301) is threaded onto the two external threads (101) respectively.

3. The inferior alveolar nerve anesthesia indicator according to claim 2, characterized in that: A fixing rod (503) is fixed on the indicator connecting seat (502); a second positioning sleeve (501) is fixed on the fixing rod (503); the second positioning sleeve (501) is rotatably connected to the connecting rod (1); the middle part of the connecting rod (1) is provided with an optical axis section (103) that matches the inner hole of the positioning sleeve (501); the positioning sleeve (501) is fitted on the optical axis section (103); both sections of the connecting rod (1) are provided with limit sleeves (4) on both sides of the positioning sleeve (501); the two limit sleeves (4) are respectively attached to both sides of the positioning sleeve (501).

4. The inferior alveolar nerve anesthesia indicator according to claim 3, characterized in that: The inner holes of the limiting sleeves (4) are all provided with internal threads; the internal threads in the two limiting sleeves (4) are respectively threaded to the external threads (101) of the two rod sections.

5. The inferior alveolar nerve anesthesia indicator according to claim 1, characterized in that: The surface of the indicator connector (502) is provided with an arc-shaped surface (50201).

6. The inferior alveolar nerve anesthesia indicator according to claim 2, characterized in that: One end of the connecting rod (1) is fixed with a handle (102); the handle (102) is covered with a handle glove (2).

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