Forceps for oral operation
By designing oral operation of the tweezers for plastic clamping bodies, the problem of improper force control of existing tweezers when clamping the porcelain restoration body is solved, and stable clamping and safe operation are achieved.
Patent Information
- Application Number
- CN202422329353.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-24
AI Technical Summary
When existing oral tweezers clamp the porcelain restoration, too little force can easily cause the restoration to fall, too much force can easily damage the restoration or the patient, and it is difficult to control the clamping force.
A tweezer for oral operation including a handheld part, a clamping front part and a plastic clamping body is designed. The plastic clamping body is compressed and deformed when under stress to increase the fitting surface, and the clamping force is controlled by the movable connection of the handheld part to avoid damage caused by rigid contact.
The stable clamping of porcelain restorations is achieved, which avoids restoration damage, reduces occupational muscle fatigue, and improves operational safety and stability.
Smart Images
Figure CN223275516U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical instruments, and in particular relates to tweezers for oral operation. Background Art
[0002] Oral porcelain restorations are increasingly used in clinical practice due to their aesthetics and biosafety, but the brittleness of their materials still needs to be noted during operation. During the removal and insertion of restorations, manual manipulation is difficult because the surface of porcelain restorations is smooth after processing, and the medical rubber sheaths used are slippery and easy to slip off. During the insertion into the oral cavity, they are blocked by the hands, making it difficult to position them and relatively easy to fall off. Currently, the commonly used clamping instruments in the oral cavity have small contact points and rigid contact. If the force is too small, the restoration may fall off, causing damage to the restoration or the patient. If the force is too large, it may easily cause scratches on the surface of the restoration, affecting the appearance, and may even cause the porcelain veneer, which is only a few millimeters thick, to break. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a tweezers for oral operation, which solves the problem that if the force of the existing tweezers is too weak, the restoration will easily fall off, causing damage to the restoration or the patient; if the force is too strong, the surface of the restoration will easily be scratched and affect the appearance.
[0004] The utility model provides a pair of tweezers for oral operation, comprising: a hand-held portion, two clamping front portions, annular heads respectively connected to the two clamping front portions, and plastic clamping bodies respectively arranged on the two annular heads. The rear end of the hand-held portion is movably connected, and the hand-held portion controls the opening and closing of the two annular heads, so that the two plastic clamping bodies can approach and clamp a porcelain restoration.
[0005] Optionally, the two plastic clamping bodies are detachably connected to the inner holes of the two annular heads respectively.
[0006] Optionally, the plastic clamping body is connected to the annular head magnetically or by elastic compression deformation.
[0007] Optionally, the plastic clamping body includes a cylindrical tail end arranged in the inner hole of the annular head and a flat head end attached to the porcelain restoration.
[0008] Optionally, the hand-held portion includes a tail end portion, a handle 1 rigidly connected to the tail end portion, and a handle 2 connected to the tail end portion via a hinge shaft, and both the handle 1 and the handle 2 are provided with finger rings.
[0009] Optionally, a limiting column is provided on an inner side surface of the handle to limit the minimum distance between the two annular heads.
[0010] Optionally, the annular head is in the shape of an O-ring.
[0011] Optionally, the hand-held portion and the clamping front portion are bent and transitioned.
[0012] Optionally, the angle between the hand-held portion and the clamping front portion is 150-175°.
[0013] Optionally, the outer side surface of the handheld portion is provided with anti-slip grooves.
[0014] The beneficial effect of the present invention is that the two plastic clamping bodies will compress and deform when subjected to force, thereby increasing the fitting surface, making it easier to clamp the porcelain restoration, and will not damage the porcelain restoration like a rigid body. The original tweezers are designed as an integrated design. When clamping objects, it is necessary to overcome the elastic stress of the material itself. Maintaining it for too long can easily cause finger fatigue and increase the probability of occupational muscle fatigue injury. By designing the movable end, the clamping force control can be made more sensitive, and there is no need for too much force to overcome the resistance, so that the clamping force can be better controlled, and it is not easy to make the clamping force too small or too large. The two plastic clamping bodies and the rear end movably connected handheld part ensure high clamping stability and operational safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic structural diagram of the tweezers for oral operation according to the present invention;
[0016] Figure 2 This is a schematic diagram of the exploded structure of the oral operation tweezers of the present invention;
[0017] Figure 3 for Figure 2 Magnified view of area A in .
[0018] In the figure: 110, hand-holding part; 111, tail end; 112, handle 1; 113, handle 2; 114, hinge shaft; 115, finger ring; 116, anti-slip groove; 120, clamping front part; 130, annular head; 140, plastic clamping body; 141, columnar tail end; 142, flat head end. DETAILED DESCRIPTION
[0019] like Figure 1-3 As shown, the utility model provides a pair of tweezers for oral operation, including a hand-held part 110, two clamping front parts 120, annular heads 130 respectively connected to the two clamping front parts 120, and plastic clamping bodies 140 respectively arranged on the two annular heads 130. The rear end of the hand-held part 110 is movably connected, and the hand-held part 110 controls the opening and closing of the two annular heads 130 to enable the two plastic clamping bodies 140 to clamp the porcelain restoration close to each other.
[0020] Compared with the prior art, the oral operation tweezers provided by the present invention utilize two plastic clamping bodies 140 that will compress and deform when subjected to force, thereby increasing the fitting surface, making it easier to clamp porcelain restorations, and will not damage the porcelain restorations like a rigid body. The original tweezers are designed as an integrated design. When clamping objects, it is necessary to overcome the elastic stress of the material itself. Maintaining it for too long can easily cause finger fatigue and increase the probability of occupational muscle fatigue injury. By designing the movable end, the clamping force control can be made more sensitive, and there is no need for too much force to overcome resistance, so that the clamping force can be better controlled, and it is not easy to make the clamping force too small or too large. The two plastic clamping bodies 140 and the rear end movably connected handheld part 110 are guaranteed to have higher clamping stability and operational safety.
[0021] In one embodiment, the two plastic clamping bodies 140 are respectively detachably connected to the inner holes of the two annular heads 130. With such an arrangement, since the plastic clamping bodies 140 are components that directly contact the patient's oral cavity, the detachable plastic clamping bodies 140 can meet the requirement of disposable use. After use by the patient, they can be promptly removed and discarded and replaced with new plastic clamping bodies 140 to solve the problem that the existing plastic clamping bodies 140 are inconvenient to disinfect, thereby improving safety. In addition, the plastic clamping bodies 140 of corresponding specifications can be replaced according to the size of the porcelain restoration.
[0022] In one embodiment, the plastic clamping body 140 and the annular head 130 are connected by elastic compression deformation. Specifically, the annular head 130 is made of stainless steel, and the plastic clamping body 140 is made of rubber, latex, or sponge, or stainless steel is coated with rubber, latex, or sponge. The inner diameter of the annular head 130 is smaller than the diameter of the corresponding portion of the plastic clamping body 140. During installation, the plastic clamping body 140 is pressed into the inner hole of the annular head 130, and for removal, it is simply pulled out.
[0023] In another embodiment, the plastic clamping body 140 is magnetically connected to the annular head 130. Specifically, the annular head 130 is made of stainless steel, and the annular head 130 is covered with a magnetic outer layer made of rubber, latex, or sponge. In other embodiments, the plastic clamping body 140 and the annular head 130 can also be screwed or clamped together.
[0024] In one embodiment, see Figure 3 The plastic clamping body 140 includes a cylindrical tail end 141 disposed in the inner hole of the annular head 130 and a flat head end 142 attached to the porcelain restoration; further, the cylindrical tail end 141 is cylindrical and the flat head end 142 is disc-shaped, acting as a gasket.
[0025] The original tweezers are designed as an integrated design. When holding an object, it is necessary to overcome the elastic stress of the material itself. It is difficult to control the amount of force applied. Maintaining it for too long can easily cause finger fatigue and increase the probability of occupational muscle fatigue injury. By designing the movable end, the control of the holding force can be made more sensitive, without excessive force to overcome resistance. The handheld portion 110 includes a tail portion 111, a handle 112 rigidly connected to the tail portion 111, and a handle 2 113 connected to the tail portion 111 via a hinge shaft 114. The handle 1 112 and the handle 2 113 are both provided with finger rings 115. Specifically, while holding the handle 1 112 and the handle 2 113, the thumb is inserted into one finger ring 115 and the index finger or middle finger is inserted into the other finger ring 115 to control the opening and closing of the tweezers. The fingers use appropriate force to bring the handle 1 112 and the handle 2 113 closer together, so that the opening and closing force of the handle 1 112 and the handle 2 113 can be better controlled, and it is not easy to make the clamping force too small or too large.
[0026] In one embodiment, a limiting column (not shown in the figure) is provided on the inner side surface of the handle 112, which is used to limit the minimum distance between the two annular heads 130. By designing the limiting column, the proximity of the handles on both sides (handle 1 112 and handle 2 113) is controlled to prevent excessive force; further, the length of the limiting column is 2-4 mm, and preferably, the length of the limiting column is 3 mm.
[0027] In one embodiment, the annular head 130 is shaped like an O-ring.
[0028] In one embodiment, the handheld portion 110 and the clamping front portion 120 are bent and transitioned to better adapt to the angle of the teeth in the oral cavity and facilitate operation. Furthermore, the angle between the handheld portion 110 and the clamping front portion 120 is 150-175 degrees.
[0029] In one embodiment, the handheld portion 110 is detachably connected to the clamping portion.
[0030] In one embodiment, the outer side of the handle portion 110 is provided with anti-slip grooves 116 to increase friction and prevent hand slipping during operation.
[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.
[0032] The one or more embodiments of this application are intended to encompass all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application should be included in the scope of protection of this application.
Claims
1. A pair of tweezers for oral operation, characterized in that: include: A handheld portion (110), two clamping front portions (120), annular heads (130) respectively connected to the two clamping front portions (120), and plastic clamping bodies (140) respectively arranged on the two annular heads (130), wherein the rear end of the handheld portion (110) is movably connected, and the handheld portion (110) controls the opening and closing of the two annular heads (130) to achieve the two plastic clamping bodies (140) approaching and clamping the porcelain restoration.
2. The oral operation tweezers according to claim 1, characterized in that: The two plastic clamping bodies (140) are respectively detachably connected to the inner holes of the two annular heads (130).
3. The oral operation tweezers according to claim 2, characterized in that: The plastic clamping body (140) is connected to the annular head (130) magnetically or by elastic compression deformation.
4. The oral operation tweezers according to claim 1, characterized in that: The plastic clamping body (140) comprises a cylindrical tail end (141) disposed in the inner hole of the annular head (130) and a flat head end (142) attached to the porcelain restoration.
5. The oral operation tweezers according to claim 1, characterized in that: The hand-held portion (110) comprises a tail portion (111), a first handle (112) rigidly connected to the tail portion (111), and a second handle (113) connected to the tail portion (111) via a hinge shaft (114), and both the first handle (112) and the second handle (113) are provided with finger rings (115).
6. The oral operation forceps according to claim 5, characterized in that: A limiting column is provided on the inner side of the handle (112) for limiting the minimum distance between the two annular heads (130).
7. The oral operation tweezers according to claim 1, characterized in that: The annular head (130) is in the shape of an O-ring.
8. The oral operation tweezers according to any one of claims 1 to 7, characterized in that: The hand-held portion (110) and the clamping front portion (120) are bent and transitioned.
9. The oral operation forceps according to claim 8, characterized in that: The angle between the hand-held portion (110) and the clamping front portion (120) is 150-175°.
10. The oral operation tweezers according to any one of claims 1 to 7, characterized in that: The outer side surface of the handheld portion (110) is provided with anti-slip grooves (116).