Dental laser handle structure easy to clean and maintain

Abstract

The utility model discloses a dental laser handle structure easy to clean and maintain, which is characterized in that a treatment head is connected to the head end of a handle through a ceramic cannula check ring, a ceramic ferrule is arranged in a cavity of the handle, and two ends of a coupling lens respectively abut against the treatment head and the ceramic ferrule; a support is arranged in the head end of the handle and positioned through a front fixing ring and a limiting boss in the handle, and the front end of the support extends out of the handle to be connected with a ceramic cannula check ring. A front ceramic cannula is arranged between the treatment head and the coupling lens in a sleeved mode, a rear ceramic cannula is arranged between the coupling lens and the ceramic ferrule in a sleeved mode, the front ceramic cannula abuts against the rear ceramic cannula, the left end of the front ceramic cannula is limited to a boss in the ceramic cannula check ring, and the right end of the rear ceramic cannula is limited to a boss on the ceramic ferrule. The ceramic insertion core is fixed on the support through the boss and the rear fixing ring, and the coupling lens, the front ceramic insertion tube and the rear ceramic insertion tube are all arranged in an inner hole of the support. According to the utility model, the coupling lens can be easily cleaned and replaced, the operation is convenient, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dental assistive device technology, specifically to a dental laser handpiece structure that is easy to clean and maintain. Background Technology

[0002] Most laser handpieces on the market are one-piece structures, which cannot be repaired or replaced, and must be scrapped entirely, resulting in high costs and waste. A utility model patent with publication number CN219148012U discloses a handpiece for dental laser medical devices. While this solution overcomes the problem of the needle assembly and lens being irreplaceable, it still has the following issues: 1. Since the treatment head is a consumable and needs frequent replacement, dust or dirt can directly reach the left end face of the coupling lens, leading to reduced laser efficiency; 2. The replacement process for the coupling lens is cumbersome, and cleaning and maintenance cannot be performed without removing it, resulting in low maintenance efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a dental laser handpiece structure that is easy to clean and maintain, enabling easy cleaning and replacement of the coupling lens, and offering convenient operation and reduced costs.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A dental laser handpiece structure that is easy to clean and maintain includes a treatment head, a ceramic cannula retainer, a handpiece, a ceramic insert, and a coupling lens. The treatment head is connected to the head end of the handpiece via the ceramic cannula retainer. The ceramic insert extends from the tail end of the handpiece and is placed inside the cavity of the handpiece. The two ends of the coupling lens abut against the treatment head and the ceramic insert, respectively. A bracket is provided inside the head end of the handpiece. The bracket is positioned by a front retainer and a limiting boss inside the handpiece. The front end of the bracket extends out of the handpiece and connects to the ceramic cannula retainer. A front ceramic cannula is sleeved between the treatment head and the coupling lens, and a rear ceramic cannula is sleeved between the coupling lens and the ceramic insert. The front and rear ceramic cannulas abut against each other. The left end of the front ceramic cannula is limited to the boss inside the ceramic cannula retainer, and the right end of the rear ceramic cannula is limited to the boss on the ceramic insert. The ceramic insert is fixed to the bracket by the boss and the rear retainer. The coupling lens, the front ceramic cannula, and the rear ceramic cannula are all placed in the inner hole of the bracket.

[0006] Furthermore, the bracket is also equipped with an activation button plate, and the handle is equipped with a corresponding activation button.

[0007] Furthermore, the ceramic insertion tube retaining ring and the bracket are connected by threads.

[0008] Furthermore, the front retaining ring and the handle are connected by a thread.

[0009] Furthermore, the treatment head and the ceramic cannula retaining ring are connected by threads.

[0010] Furthermore, the bracket and the rear fixing ring are connected by threads.

[0011] Furthermore, a slit is provided on the side of the rear fixing ring for the optical fiber to pass through.

[0012] Compared with the prior art, the advantages and effects of this utility model are:

[0013] 1. This structure first uses front and rear fixing rings to fix the bracket and ceramic ferrule and prevent rotation, and then uses ceramic tube retaining rings to fix the front and rear ceramic tubes and coupling lens, ensuring that the relative position of the ceramic ferrule and coupling lens remains stable.

[0014] 2. This structure allows for easy removal and cleaning / replacement of the coupling lens simply by disassembling the ceramic insert retaining ring. It is simple in structure and easy to operate, making it more cost-effective and faster than the one-piece laser handles on the market that cannot be repaired and would render the entire handle unusable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an exploded view of the structure of this utility model.

[0017] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0018] Part Number Identification: 1. Treatment Head; 2. Ceramic Cannula Retaining Ring; 3. Handle; 31. Handle Front Cover; 32. Handle Middle Cover; 33. Handle Rear Cover; 4. Ceramic Insert; 5. Coupling Lens; 6. Support; 7. Front Fixing Ring; 8. Front Ceramic Cannula; 9. Rear Ceramic Cannula; 10. Rear Fixing Ring; 11. Excitation Button Plate; 12. Excitation Button. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments, but the present invention is not limited to these embodiments.

[0020] This embodiment describes an easy-to-clean and maintain dental laser handpiece structure, such as... Figure 1 , 2 As shown in Figures 1 and 3, the device includes a treatment head 1, a ceramic cannula retaining ring 2, a handle 3, a ceramic insert 4, a coupling lens 5, a bracket 6, a front fixation ring 7, a front ceramic cannula 8, a rear ceramic cannula 9, and a rear fixation ring 10.

[0021] The treatment head 1 is threaded to the left end of the ceramic cannula retaining ring 2 and connected to the head end of the handle 3 via the ceramic cannula retaining ring 2. The insert portion of the treatment head 1 extends into the inner hole of the ceramic cannula retaining ring 2.

[0022] The handle 3 includes a front cover 31, a middle cover 32, and a rear cover 33; the ceramic ferrule 4, carrying an optical fiber, passes through the rear cover 33, the middle cover 32, and the front cover 31 and is placed inside the cavity of the front cover 31; the coupling lens 5 is placed at the head end of the front cover 31, with its two ends abutting against the treatment head 1 and the ceramic ferrule 4, respectively.

[0023] The handle 3 has a bracket 6 inside. The right side of the bracket 6 is engaged with the limiting boss inside the handle front cover 31. The left side of the bracket 6 is limited by the front fixing ring 7. The front fixing ring 7 and the handle front cover 31 are threaded together. The front end of the bracket 6 extends out of the handle front cover 31 and is threaded together with the ceramic insertion tube retaining ring 2.

[0024] A front ceramic cannula 8 is sleeved between the insert part of the treatment head 1 and the coupling lens 5, and a rear ceramic cannula 9 is sleeved between the coupling lens 5 and the ceramic insert 4. The front ceramic cannula 8 and the rear ceramic cannula 9 abut against each other. The left end of the front ceramic cannula 8 is limited to the protrusion inside the ceramic cannula retaining ring 2, and the right end of the rear ceramic cannula 9 is limited to the protrusion on the ceramic insert 4.

[0025] The coupling lens 5 and the rear ceramic cannula 9 are both placed in the inner hole of the bracket 6. The front ceramic cannula 8 is partially placed in the inner hole of the ceramic cannula retaining ring 2 and partially placed in the inner hole of the bracket 6.

[0026] The ceramic insert 4 is secured to the bracket 6 on the left by a boss and limited on the right by a rear retaining ring 10. The rear retaining ring 10 and the bracket 6 are connected by a thread.

[0027] The rear fixing ring 10 has a slit on its side for the optical fiber to pass through.

[0028] The bracket 6 is also equipped with an excitation button plate 11, and the front cover 31 of the handle is equipped with an excitation button 12 that works with it. Pressing the excitation button 12 can activate the excitation button plate 11.

[0029] The working principle of this embodiment is as follows:

[0030] 1. During installation, first, pass the ceramic ferrule 4 with the optical fiber through the handle's rear cover 33, handle's middle cover 32, and handle's front cover 31, and then fix it to the bracket 6 using the rear retaining ring 10; then fix the bracket 6 to the handle's front cover 31 using the front retaining ring 7; then place the coupling lens 5, the front ceramic cannula 8, and the rear ceramic cannula 9 into the inner hole of the bracket 6; then fix the ceramic cannula retaining ring 2 to the bracket 6 to prevent the coupling lens 5, the front ceramic cannula 8, and the rear ceramic cannula 9 from falling out; finally, install the treatment head 1 on the ceramic cannula retaining ring 2.

[0031] 2. When disassembling, first unscrew the treatment head 1, then unscrew the ceramic cannula retaining ring 2, and then pull out the front ceramic cannula 8, so that the left end of the coupling lens 5 can be exposed for cleaning and replacement.

Claims

1. A dental laser handpiece structure that is easy to clean and maintain, comprising a treatment head (1), a ceramic cannula retainer (2), a handpiece (3), a ceramic insert (4), and a coupling lens (5), characterized in that: The treatment head (1) is connected to the head end of the handle (3) through the ceramic cannula retaining ring (2). The ceramic insert (4) extends from the tail end of the handle (3) into the cavity placed in the handle (3). The two ends of the coupling lens (5) abut against the treatment head (1) and the ceramic insert (4) respectively. The handle (3) has a bracket (6) inside its head end. The bracket (6) is positioned by the front fixing ring (7) and the limiting boss inside the handle (3). The front end of the bracket (6) extends out of the handle (3) and connects to the ceramic insertion tube retaining ring (2). A front ceramic cannula (8) is sleeved between the treatment head (1) and the coupling lens (5), and a rear ceramic cannula (9) is sleeved between the coupling lens (5) and the ceramic insert (4). The front ceramic cannula (8) and the rear ceramic cannula (9) abut against each other. The left end of the front ceramic cannula (8) is limited to the protrusion inside the ceramic cannula retaining ring (2), and the right end of the rear ceramic cannula (9) is limited to the protrusion on the ceramic insert (4). The ceramic insert (4) is fixed to the bracket (6) by the boss and the rear fixing ring (10), and the coupling lens (5), the front ceramic insert (8) and the rear ceramic insert (9) are all placed in the inner hole of the bracket (6).

2. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The bracket (6) is also provided with an activation button plate (11), and the handle (3) is equipped with an activation button (12) that works with it.

3. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The ceramic insert retaining ring (2) and the bracket (6) are connected by threads.

4. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The front fixing ring (7) and the handle (3) are connected by a thread.

5. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The treatment head (1) and the ceramic cannula retaining ring (2) are connected by threads.

6. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The bracket (6) and the rear fixing ring (10) are connected by threads.

7. The dental laser handpiece structure for easy cleaning and maintenance according to claim 1, characterized in that: The rear fixing ring (10) has a slit on its side for the optical fiber to pass through.

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