Oral high-speed mobile phone fixing device

By designing a high-speed dental handpiece fixation device with a hollow cylinder and raised structure, the problem of needle prick injuries caused by improper placement of high-speed handpieces is solved. This achieves stable fixation of the handpiece and compatibility with multiple models, reduces the risk of needle prick injuries, and supports reuse.

CN224235565UActive Publication Date: 2026-05-15DENTAL HOSPITAL AFFILIATED TO FUJIAN MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DENTAL HOSPITAL AFFILIATED TO FUJIAN MEDICAL UNIV
Filing Date
2025-05-20
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing technologies, improper storage of high-speed mobile phones when not in use leads to a high probability of needle pricks, and the needle may turn when the tubing is tangled, increasing the risk of injury.

Method used

A high-speed dental handpiece fixation device was designed, which adopts a hollow cylinder and a protruding structure. The hollow cylinder is adapted to the outer diameter of the high-speed handpiece, and the protrusion is embedded in the fixing ring of the dental handpiece frame. The design of the round hole and the slot prevents rotation. Medical polyurethane material is used to ensure a tight fit and prevent rotation.

Benefits of technology

It effectively prevents high-speed handpieces from rotating on the dental handpiece holder, reducing the risk of needlestick injuries. It is easy to install, can be repeatedly sterilized and reused, and is compatible with multiple handpiece models.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical instruments, in particular to an oral high-speed mobile phone fixing device. The device comprises a hollow cylinder and protrusions arranged on the outer side face of the hollow cylinder. The hollow cylinder and the protrusions are medical polyurethane blocks. And the inner diameter of the hollow cylinder is matched with the outer diameter of the high-speed mobile phone. And the width size of the bulge is matched with the fixed ring opening on the dental handpiece rack. Round holes penetrating through the left and right side surfaces are formed in the side surfaces of the bulges; an opening groove penetrating to the front end face of the protrusion is formed in the round hole. The dental handpiece holder is convenient to mount, and can effectively prevent a high-speed handpiece from rotating on the dental handpiece holder by utilizing the limiting effect of the hollow cylinder and the bulge, so that a machine needle is always positioned at a correct position, and the condition of needle stick injury is avoided; in addition, chlorine-containing disinfectant or object surface disinfection wiping can be used, and repeated use can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a high-speed dental handpiece fixation device. Background Technology

[0002] During dental treatment, high-speed handpieces need to be placed on the dental handpiece holder. When not in use, the burs should be positioned with the handpiece facing the work tray. However, this practice is poorly followed. According to clinic statistics, only 15.2% of high-speed handpieces are placed in the correct orientation after use, significantly increasing the risk of needle pricks. Furthermore, when the tubing of a placed high-speed handpiece becomes tangled, the self-correcting properties of the tubing can sometimes cause the bur, initially placed inwards, to gradually turn outwards as the tubing rotates, further increasing the risk of needle pricks. Utility Model Content

[0003] The purpose of this invention is to provide a high-speed dental handpiece fixing device that ensures the bur is in the correct position on the dental handpiece holder when the high-speed handpiece is not in use, effectively preventing needle puncture injuries.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-speed dental handpiece fixing device, the key feature of which is that it is a hollow cylinder with a protrusion on its outer side; the inner diameter of the hollow cylinder is adapted to the outer diameter of the high-speed handpiece; the width of the protrusion is adapted to the fixing ring on the dental handpiece holder; the side of the protrusion is provided with a circular hole penetrating the left and right sides; the circular hole is provided with an opening groove penetrating to the front end face of the protrusion; both the hollow cylinder and the protrusion are medical polyurethane blocks.

[0005] Furthermore, the outer surface of the hollow cylinder is provided with a square groove that extends to the inner hole, and the square groove extends through the upper and lower surfaces of the hollow cylinder along the axial direction of the hollow cylinder.

[0006] Furthermore, the front end face of the protrusion is provided with an arc surface.

[0007] Furthermore, the hollow cylinder and the protrusion are integrally formed polyurethane blocks.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. Easy to install: simply fit the hollow cylinder onto the high-speed mobile phone. The inner diameter of the hollow cylinder matches the outer diameter of the high-speed mobile phone. The hollow cylinder is made of medical-grade polyurethane block and has a certain degree of flexibility. Therefore, the hollow cylinder can fit tightly against the high-speed mobile phone without any relative movement between them.

[0010] 2. The protrusion is embedded in the fixing ring on the dental handpiece holder, which ensures that the hollow cylinder will not rotate on the dental handpiece holder; because the hollow cylinder fits tightly with the high-speed handpiece, the high-speed handpiece will not rotate either, that is, the bur will not rotate and will always be in the correct position, so as not to cause needle puncture injury.

[0011] 3. The hollow cylinders and protrusions are all made of medical-grade polyurethane blocks, which can be wiped with chlorine-containing disinfectant or surface disinfection solution and are reusable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a half-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of Example 2;

[0015] Figure 4 This is a schematic diagram showing the placement of a high-speed mobile phone before using this utility model.

[0016] Figure 5 This is a schematic diagram showing the placement of this utility model after its application to a high-speed mobile phone.

[0017] Label Explanation:

[0018] 1. Hollow cylinder; 11. Square groove; 2. Protrusion; 21. Round hole; 22. Open groove;

[0019] 23. Arc surface; 3. High-speed handpiece; 4. Dental handpiece holder. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figures 1-5 As shown, the technical solution adopted by this utility model is: a high-speed oral handpiece fixing device, comprising a hollow cylinder 1 and a protrusion 2 disposed on the outer side of the hollow cylinder 1; both the hollow cylinder 1 and the protrusion 2 are medical polyurethane blocks.

[0022] The inner diameter of the hollow cylinder 1 is adapted to the outer diameter of the high-speed mobile phone 3;

[0023] The width of the protrusion 2 is adapted to the fixing ring on the dental handpiece holder 4; the side of the protrusion 2 is provided with a circular hole 21 that passes through the left and right sides; the circular hole 21 is provided with an opening groove 22 that passes through to the front end face of the protrusion 2.

[0024] As described above, the hollow cylinder 1 is made of medical-grade polyurethane material. The inner diameter of the hollow cylinder 1 is compatible with the outer diameter of the high-speed handpiece 3. Furthermore, the hollow cylinder 1, being a medical-grade polyurethane block, has a certain degree of elasticity, allowing it to fit tightly against the high-speed handpiece 3 without relative movement. The protrusion 2 is embedded in the fixing ring on the dental handpiece holder 4, ensuring that the hollow cylinder 1 does not rotate on the dental handpiece holder 4. Because the hollow cylinder 1 fits tightly against the high-speed handpiece 3, the high-speed handpiece 3 will not rotate, meaning the bur will not rotate and will always remain in the correct position, preventing needlestick injuries. In addition, both the hollow cylinder 1 and the protrusion 2 are medical-grade polyurethane blocks, which can be wiped with chlorine-containing disinfectant or surface disinfection and are reusable.

[0025] Preferably, the front end face of the protrusion 2 is provided with an arc surface 23.

[0026] As can be seen from the above description, since the protrusion 2 extends beyond the side of the dental handpiece holder, the dentist may touch the protrusion 2 during the procedure. By setting the arc surface 23, the sharpness of the front end of the protrusion 2 is reduced, and the dentist feels more comfortable when touching the protrusion 2.

[0027] Preferably, the hollow cylinder 1 and the protrusion 2 are integrally formed polyurethane blocks.

[0028] As can be seen from the above description, adopting an integrated processing and molding method can save production costs and is conducive to its promotion in the industry. Example

[0029] Please refer to Figures 1-2 As shown, the technical solution adopted in this embodiment is: a high-speed oral handpiece fixing device, comprising a hollow cylinder 1 and a protrusion 2 disposed on the outer side of the hollow cylinder 1;

[0030] The inner diameter of the hollow cylinder 1 is adapted to the outer diameter of the high-speed mobile phone 3;

[0031] The width of the protrusion 2 is adapted to the fixing ring on the dental handpiece holder 4; the side of the protrusion 2 is provided with a circular hole 21 that passes through the left and right sides; the circular hole 21 is provided with an opening groove 22 that passes through to the front end face of the protrusion 2; the front end face of the protrusion 2 is provided with an arc surface 23.

[0032] The hollow cylinder 1 and the protrusion 2 are integrally formed polyurethane blocks. Example

[0033] Please refer to Figure 3 As shown, the difference between Example 2 and Example 1 is that:

[0034] The outer surface of the hollow cylinder 1 is provided with a square groove 11 that extends to the inner hole, and the square groove 11 extends through the upper and lower surfaces of the hollow cylinder 1 along the axial direction of the hollow cylinder 1.

[0035] As can be seen from the above description, during use, the outer diameter of the hollow cylinder 1 is selected according to the placement hole of the dental handpiece holder 4. By setting the square groove 11, the extensibility of the hollow cylinder 1 can be improved, so that the hollow cylinder 1 can be adapted to more models of high-speed handpieces 3.

[0036] The working principle of this utility model is as follows: Before use, the doctor selects a suitable hollow cylinder 1 according to the outer diameter of the high-speed handpiece 3, ensuring that the hollow cylinder 1 can be tightly fitted onto the outside of the high-speed handpiece 3; the outer surface of the hollow cylinder 1 matches the placement hole of the dental handpiece holder 4.

[0037] The protrusion 2 is embedded in the fixing ring of the dental handpiece holder 4. The protrusion 2 will not rotate under the restriction of the fixing ring. Therefore, the protrusion 2 can effectively prevent the hollow cylinder 1 from rotating on the dental handpiece holder 4, that is, the bur can always be in the correct position, effectively preventing needle puncture injury.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-speed dental handpiece fixation device, characterized in that, It is a hollow cylinder with a protrusion on its outer side; the inner diameter of the hollow cylinder is adapted to the outer diameter of the high-speed handpiece; the width of the protrusion is adapted to the fixing ring on the dental handpiece holder; the side of the protrusion has a circular hole that passes through the left and right sides; the circular hole has an opening groove that passes through to the front end of the protrusion; both the hollow cylinder and the protrusion are medical polyurethane blocks.

2. The oral high-speed handpiece fixation device according to claim 1, characterized in that, The outer surface of the hollow cylinder is provided with a square groove that extends to the inner hole, and the square groove extends through the upper and lower surfaces of the hollow cylinder along the axial direction of the hollow cylinder.

3. The oral high-speed handpiece fixation device according to claim 1, characterized in that, The front end face of the protrusion has an arc surface.

4. The oral high-speed handpiece fixation device according to claim 1, characterized in that, The hollow cylinder and the protrusion are integrally formed polyurethane blocks.