Orthodontic expander handle

Abstract

The utility model discloses orthodontics is with the handle of arch expander, including handle main part, collar column, threaded rod, thread cover, collar and arch expander bar, collar column fixed setting on handle main part, the collar is sleeved in collar column outside, and can rotate in collar column outside degree, arch expander bar one end is fixedly connected with the collar, and the other end is free end, threaded rod fixed setting is at collar column end, when threaded rod is connected completely with thread cover, the thread cover extrusion is carried out to the upside of collar, makes the rotation of collar receive certain resistance, the utility model discloses through the design that the collar can rotate 360 degrees outside collar column, and arch expander bar can be flexible adaptation patient oral cavity different position, different angle orthodontics arch expander screw ring, need not frequent adjustment handle main part holding posture, reduce the degree of operation tedium, improve the diagnosis and treatment efficiency, through thread cover and collar column connection limiting mode, limit the collar at the same time also, it is convenient for the replacement of collar later period.

Description

Technical Field

[0001] This utility model mainly relates to the field of orthodontic expander technology, specifically to the handle of an orthodontic expander. Background Technology

[0002] In the field of orthodontic treatment, arch expanders are key instruments used to widen the dental arch, improve crowding and occlusion, and are widely used in guiding jaw development in children and adolescents and correcting dental arch morphology in adults. With the popularization of orthodontic techniques, clinical practice has placed increasingly higher demands on the safety, practicality, and ease of operation of arch expanders.

[0003] Currently, there is a type of traditional expander with a simple structure on the market. Its core functional component is mostly a single metal wire. While these expanders are inexpensive to manufacture and simple in structure, they have revealed many prominent problems in clinical application, with safety hazards being the most significant. Because the wire itself is hard and smooth, lacking an effective grip and fixation structure, it is very easy for it to detach during doctor's operation or patient oral movements. The oral cavity is a confined space with a swallowing reflex; if a detached wire component slips into the deep part of the mouth, it may not only scratch the gums, buccal mucosa, and other soft tissues, but also poses a very high risk of being swallowed into the digestive tract. There have been numerous clinical cases of patients accidentally swallowing metal parts of expanders. These foreign objects often have sharp edges and corners, and once they enter the digestive tract, they can cause serious complications such as gastrointestinal wall scratches and perforation, requiring emergency removal via endoscopy or even surgery, causing physical trauma and psychological distress to the patient. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. It mainly provides a handle for an orthodontic expander to solve the technical problems mentioned in the background.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An orthodontic expander handle includes a handle body, a collar post, a threaded rod, a threaded sleeve, a collar, and an expander rod. The handle body is an elongated structure. The collar post is fixedly mounted on the handle body. The collar is fitted around the outside of the collar post and can rotate around the outside of the collar post. One end of the expander rod is fixedly connected to the collar, and the other end is a free end. The threaded rod is fixedly mounted at the end of the collar post. When the threaded rod and the threaded sleeve are fully connected, the threaded sleeve compresses the upper side of the collar, causing the collar to rotate with a certain resistance.

[0006] Preferably, the handle body is made of medical-grade plastic.

[0007] Preferably, the outer surface of the threaded sleeve is provided with anti-slip texture.

[0008] Preferably, the bow expander is made of medical-grade stainless steel.

[0009] Preferably, the collar and the bow expander are integrally formed.

[0010] Preferably, the free end of the expander rod has an arc-shaped structure to avoid damage to oral tissues.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: With its 360-degree rotating collar design, the expander bar can flexibly adapt to the orthodontic expander spiral collars at different positions and angles in the patient's mouth. This eliminates the need for frequent adjustments to the grip posture of the handle, reducing operational complexity and improving treatment efficiency. The threaded sleeve connects to the collar post for positioning, which not only limits the collar position but also facilitates future collar replacement.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 .

[0014] Numbering on the map: 1. Handle body; 2. Collar post; 3. Threaded rod; 4. Threaded sleeve; 5. Collar; 6. Bow expander rod. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] Please refer to the appendix carefully. Figure 1-3 The orthodontic expander handle has an ergonomically designed elongated structure with a length of 10-15cm. Both ends are rounded to eliminate sharp edges. The handle body 1 is made of medical-grade plastic, which avoids the risk of allergic reactions that may be caused by traditional metal handles. The material can withstand 121℃ high-pressure steam sterilization and 75% ethanol wiping disinfection.

[0019] The collar post 2 is fixedly mounted on the handle body 1. The collar post 2 is a solid cylindrical structure and is integrally injection molded to the handle body 1 to ensure the connection strength. The collar 5 is fitted onto the outside of the collar post 2. The collar 5 is a hollow annular structure with an inner diameter 0.1-0.2mm larger than the outer diameter of the collar post 2. This ensures flexible rotation under clearance fit while avoiding wobbling caused by excessive clearance. The collar 5 can rotate 360 ​​degrees outside the collar post 2. One end of the expander rod 6 is fixedly connected to the collar 5, and the other end is a free end. The expander rod 6 is made of medical-grade stainless steel. The collar 5 and the expander rod 6 are integrally formed. Compared with the traditional detachable connection, it eliminates the hidden danger of the expander rod 6 falling off due to loose connection and completely avoids the risk of accidentally swallowing parts. The free end of the expander rod 6 has an arc-shaped structure to avoid damage to oral tissues.

[0020] The threaded rod 3 is fixedly installed at the end of the collar post 2. When the threaded rod 3 is fully connected to the threaded sleeve 4, the threaded sleeve 4 squeezes the upper side of the collar 5, so that the rotation of the collar 5 is subject to a certain resistance. The outer surface of the threaded sleeve 4 is provided with anti-slip texture.

[0021] When the threaded rod 3 and the threaded sleeve 4 are fully connected, the lower surface of the threaded sleeve 4 is in close contact with the upper end face of the collar 5. The extrusion pressure is adjusted by the threaded sleeve 4 along the screwing depth of the threaded rod 3. When the screwing depth is shallow, the extrusion pressure is small. As the screwing depth increases, the extrusion pressure increases, and the rotation resistance of the collar 5 increases accordingly. At this time, the collar 5 will not rotate due to oral movement or slight touch.

[0022] The specific operating procedure of this utility is as follows: When in use, insert the free end of the expander rod 6 into the spiral ring hole of the orthodontic expander, and rotate the spiral ring by cooperating with the spiral ring hole through the expansion rod 6.

[0023] When it is necessary to replace the orthodontic expander with a matching expander rod 6 according to the product category requirements, rotate the threaded sleeve 4 until it is completely disengaged from the collar 5, remove the threaded sleeve 4 and place it properly, then clamp the outside of the collar 5 and apply upward force along the axial direction of the collar post 2 to remove the collar 5 from the outside of the collar post 2. The collar 5 and the expander rod 6 are integrally formed. After removing the collar 5, the old expander rod 6 is removed together with the collar 5. Then, insert the new collar 5 downward along the axial direction of the collar post 2 to ensure that the collar 5 can rotate flexibly around the collar post 2. Then install the threaded sleeve 4. The threaded sleeve 4 is installed to the designated position to provide a certain limit for the collar 5 and the expander rod 6.

[0024] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A handle for an orthodontic expander, characterized in that: The device includes a handle body (1), a collar post (2), a threaded rod (3), a threaded sleeve (4), a collar (5), and an expander rod (6). The handle body (1) is a long strip structure. The collar post (2) is fixedly mounted on the handle body (1). The collar (5) is fitted on the outside of the collar post (2) and can rotate 360 ​​degrees outside the collar post (2). One end of the expander rod (6) is fixedly connected to the collar (5), and the other end is a free end. The threaded rod (3) is fixedly mounted at the end of the collar post (2). When the threaded rod (3) is fully connected to the threaded sleeve (4), the threaded sleeve (4) squeezes the upper side of the collar (5), so that the rotation of the collar (5) is subject to a certain resistance.

2. The orthodontic expander handle according to claim 1, characterized in that: The handle body (1) is made of medical-grade plastic.

3. The orthodontic expander handle according to claim 1, characterized in that: The outer surface of the threaded sleeve (4) is provided with anti-slip texture.

4. The orthodontic expander handle according to claim 1, characterized in that: The bow expander (6) is made of medical-grade stainless steel.

5. The orthodontic expander handle according to claim 1, characterized in that: The collar (5) and the bow expander (6) are integrally formed.

6. The orthodontic expander handle according to claim 1, characterized in that: The free end of the expander rod (6) has an arc-shaped structure to avoid damage to oral tissues.

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