Retention device
By introducing a force measurement unit and a stabilizing structure into the fixation device, the problems of insufficient operational stability and portability during the fixation of the abutment and the implant are solved, achieving uniform force application and safe fixation, and improving the effect of implant restoration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-27
AI Technical Summary
In the existing technology, the fixation method of the abutment and the implant has problems such as poor operation stability, uneven tapping force and insufficient tool portability. In particular, when using a tapping fixation device, it is difficult to effectively control the tapping force, which may result in the implant not being fully positioned or being damaged.
A positioning device is designed, comprising a cylinder, a positioning element, an operating component, and a force measuring unit. The force measuring unit detects the force exerted by the operating component on the elastic element, allowing the operator to adjust the applied force in real time to ensure uniform force application. The device includes a fixing element, a limiting element, and a guide element inside the cylinder to stabilize the operating path, supplemented by an anti-slip structure and a detachable positioning auxiliary component to improve portability.
This method achieves stable fixation of the abutment and implant, avoids damage caused by improper force application, improves operational stability and tool portability, and ensures uniformity and safety during the fixation process.
Smart Images
Figure CN224039369U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oral cavity instrument technical field, especially a kind of retaining device. BACKGROUND
[0002] In implantation repair, the fixing mode of abutment and implant mainly includes screw retention, adhesive retention and friction retention, wherein, using screw retention mode has the risk of screw loosening, using adhesive retention mode is prone to adhesive residue, and friction retention realizes fixation using the friction force generated by the close fit between the contact surface of implant and abutment, and the fixing effect is better, the fixing mode needs to use knocking hammer to knock the just-in-place rod on abutment, but the just-in-place rod is prone to sliding in palm during knocking process, and the operation stability is poor.
[0003] The related technology proposes a knocking retaining device, which includes an outer cylinder, a knocking rod, an inner rod, a pushing ring and a spring. When the inner rod is knocked, an acting force is transmitted to the knocking rod, so that the knocking rod knocks the implant. The pushing ring arranged on the inner rod extrudes the spring to make it contract. After a single knocking, the knocking rod can return to the initial position due to the resetting action of the spring. Thus, the implant can be quickly knocked and retained by repeating the above process. During the retaining process, the operator only needs to hold the outer cylinder to knock, without the need to slide and knock the whole straight rod, so that the operation stability is improved.
[0004] In the above-mentioned knocking retaining device, the retaining process of the implant is realized by knocking the inner rod. However, the knocking effect of the inner rod cannot be controlled each time, and the knocking force is uneven. If the knocking force is too small, the implant cannot be completely positioned. If the knocking force is too large, the implant will be damaged. If the force is uneven, the implant will be misaligned, which affects the effect of implantation repair. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a retaining device, which can control the knocking effect on the abutment and facilitate timely adjustment of the applied force on the abutment.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The utility model proposes a retaining device, which includes:
[0008] A cylinder body is fixedly provided with a fixing member inside the cylinder body.
[0009] A retaining member is connected to the cylinder body and can abut against the abutment.
[0010] The operating assembly comprises an operating piece, a mounting boss and an elastic piece, one end of the operating piece extends into the barrel, the operating piece is movably arranged on the fixing piece and can push the retaining piece, the other end of the operating piece is located outside the barrel, the mounting boss is fixedly connected to the operating piece, and the elastic piece is clamped between the mounting boss and the fixing piece.
[0011] The force value measuring portion is configured to detect the force of the mounting boss compressing the elastic piece.
[0012] Optionally, the force value measuring portion is arranged on the operating piece or the fixing piece.
[0013] Optionally, a limiting piece is further fixedly arranged in the barrel, the limiting piece and the fixing piece are arranged along the axial direction of the barrel, and the operating piece is movably arranged on the fixing piece and the limiting piece.
[0014] Specifically, the mounting boss is limited between the fixing piece and the limiting piece.
[0015] Optionally, the retaining device further comprises a retaining auxiliary piece, the retaining auxiliary piece is connected to the barrel and detachably connected to the retaining piece, and the operating piece can push the retaining piece through the retaining auxiliary piece.
[0016] Specifically, a guide piece is further fixedly arranged in the barrel, and the retaining auxiliary piece is fixedly connected to the guide piece.
[0017] Optionally, the retaining auxiliary piece and the retaining piece are magnetically connected.
[0018] Optionally, the operating piece comprises an operating part and a movable part connected to each other, the operating part is arranged outside the barrel, and the movable part is movably arranged on the fixing piece.
[0019] Specifically, the cross-sectional area of the operating part is not less than the cross-sectional area of the barrel.
[0020] Optionally, a first anti-skid structure is arranged on the outer wall surface of the barrel, and a second anti-skid structure is arranged on the outer wall surface of the operating part.
[0021] The utility model discloses the beneficial effects of:
[0022] The utility model provides a retaining device which is provided with a force value measuring part, can detect the force of the mounting boss compression elastic piece, is convenient for the operating personnel to master the force degree of the operating piece, and makes adjustment in time, avoids the influence of the fixing process of the base platform caused by the too large or too small force of the operating piece pushing the retaining piece, and improves the fixing process of the base platform and the implant. One end of the operating piece extends into the inside of the cylinder, and the other end is located on the outside of the cylinder, which is convenient for the operating personnel to exert force on the operating piece. When the base platform and the implant need to be fixed, the operating personnel can exert force on one end of the operating piece located on the outside of the cylinder, so that the operating piece drives the mounting boss to move upwards and compresses the elastic piece, when the detection data of the force value measuring part determines that the force exerted by the operating personnel on the operating piece is in the appropriate range, the force exerted on the operating piece is removed, at this time, the operating piece can move downwards under the elastic force of the elastic piece and push the retaining piece, so as to realize the pushing of the retaining piece on the base platform. Through the above process repeated for many times, the fixing of the base platform and the implant can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the structure schematic diagram of the retaining device used in the prior art;
[0024] Figure 2 It is the structure schematic diagram of the retaining device of the utility model embodiment.
[0025] In the drawing:
[0026] 100, curved positioning rod; 200, straight positioning rod; 300, knocking hammer;
[0027] 1, cylinder; 11, fixing piece; 12, limiting piece; 13, guide piece; 14, first anti-skid structure;
[0028] 2, retaining piece;
[0029] 3, operating assembly; 31, operating piece; 311, operating part; 312, movable part; 313, second anti-skid structure; 32, mounting boss; 33, elastic piece;
[0030] 4, force value measuring part;
[0031] 5, retaining auxiliary piece. DETAILED DESCRIPTION
[0032] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar parts or parts with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.
[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0036] To achieve fixation between the abutment and the implant, such as Figure 1 As shown, existing technologies typically use a hammer 300 to strike the curved positioning rod 100 or the straight positioning rod 200 abutting against the abutment. During this striking process, the contact surfaces of the implant and the abutment can fit tightly together, achieving fixation through the friction generated between them, resulting in good fixation. However, this fixation method requires the operator to hold the curved positioning rod 100 or the straight positioning rod 200 with one hand and the hammer 300 with the other hand to strike it, resulting in poor operational stability and uneven striking force with each strike. Furthermore, either the curved positioning rod 100 or the straight positioning rod 200, as well as the hammer 300, are indispensable for the fixation process, thus requiring storage space for at least two tools in a toolbox, leading to poor portability.
[0037] To improve the stability of the abutment and implant fixation process and the portability of the tools required for retention, such as Figure 2The utility model provides a kind of retaining device, including cylinder 1, retaining member 2, operating assembly 3 and force value measuring part 4, operating assembly 3 includes operating member 31, mounting boss 32 and elastic member 33.Wherein, retaining member 2 is connected to cylinder 1 and can be butted to base. Fixedly be provided with fixed part 11 in cylinder 1, one end of operating member 31 is inserted into cylinder 1, and it can be pushed retaining member 2 to be movably arranged in fixed part 11, and the other end of operating member 31 is located at the outside of cylinder 1.Operating member 31 is fixedly connected to mounting boss 32, and elastic member 33 is clamped between mounting boss 32 and fixed part 11. Force value measuring part 4 is configured to detect the force of mounting boss 32 compressing elastic member 33. Elastic member 33 can be sleeved on the outer circumferential side of operating member 31, or it can be directly placed between mounting boss 32 and fixed part 11 (both ends are connected with mounting boss 32 and fixed part 11 respectively but not connected with operating member 31), and elastic member 33 can be a spring, a bellows or a rubber ring, etc., or it can be other elastic members with the characteristics of elastic deformation when force is applied and reset after external force disappears. The utility model does not make too many limitations.
[0038] In the embodiment, when the base and the implant need to be fixed, the operator can apply force to one end of operating member 31 located outside the cylinder 1, causing operating member 31 to move upward and compress elastic member 33. By observing the detection data of force value measuring part 4, the operator can determine whether the force applied to operating member 31 is within the appropriate range. When the force is within the appropriate range, the operator can remove the force applied to operating member 31. At this time, operating member 31 can move downward under the elastic force of elastic member 33 and push retaining member 2, thereby achieving the pushing of retaining member 2 to the base. By repeatedly performing the above process, the base and the implant can be finally fixed. The retaining device proposed by the utility model is provided with force value measuring part 4, which can detect the force of mounting boss 32 compressing elastic member 33 in real time. This facilitates the operator to master the degree of force applied to operating member 31 and make timely adjustments, avoiding the influence of excessive or insufficient force of operating member 31 pushing retaining member 2 on the fixing process of the base, ensuring uniform force application to operating member 31 during the operation process, and improving the fixing process of the base and the implant. One end of operating member 31 is inserted into the inside of cylinder 1, and the other end is arranged outside cylinder 1, which facilitates the operator to apply force to operating member 31. Retaining member 2 is connected to cylinder 1, one end of operating member 31 is inserted into cylinder 1, and the retaining device occupies less space after assembly, improving portability.
[0039] The specific structure of the retaining device in the embodiment will be described below.
[0040] In the embodiment, the force value measuring portion 4 is a plurality of force value scale lines arranged on the outer wall surface of the operating member 31, which are distributed along the axial direction of the operating member 31, and the corresponding scale values from top to bottom increase in turn. The zero scale value can be arranged near the upper opening of the operating member 31 close to the upper end surface of the barrel 1, and when no pulling force is applied to the operating member 31, the zero scale line is flush with the upper end surface of the barrel 1. When the operating personnel pulls the operating member 31 upward, the force applied to the operating member 31 can be directly read by observing the scale value corresponding to the position flush with the upper end surface of the barrel 1 at this time, so as to detect the force of the mounting boss 32 compressing the elastic member 33. The zero scale line can also be arranged on the side of the operating member 31 close to the upper end surface of the fixing member 11, and when no pulling force is applied to the operating member 31, the zero scale line is flush with the upper end surface of the fixing member 11. When the operating personnel pulls the operating member 31 upward, the force applied to the operating member 31 can be directly obtained by observing the scale value corresponding to the position flush with the upper end surface of the fixing member 11 at this time, so as to detect the force of the mounting boss 32 compressing the elastic member 33. The force value scale line as the way to detect the force of the mounting boss 32 compressing the elastic member 33 can reduce the detection cost.
[0041] In other embodiments, the force value measuring portion 4 can also be a pressure sensor arranged on the fixing member 11, which can monitor the pressure value of the elastic member 33 on the fixing member 11 when the operating member 31 is pulled, so as to obtain the force of the mounting boss 32 compressing the elastic member 33. The measurement accuracy of using the pressure sensor to measure the force of the mounting boss 32 compressing the elastic member 33 is higher.
[0042] In the embodiment, the barrel 1 is also fixedly provided with a limiting member 12, and the limiting member 12 and the fixing member 11 are arranged in the axial direction of the barrel 1 and are spaced apart, and the operating member 31 penetrates through the fixing member 11 and the limiting member 12. The arrangement of the fixing member 11 and the limiting member 12 can provide a specified movement path for the operating member 31, ensure the movement stability of the operating member 31 in the axial movement, and avoid the movement direction deviation or movement jam.
[0043] Specifically, the mounting boss 32 is limited between the fixing member 11 and the limiting member 12, and when the force is too large due to operation failure or other factors, limiting the mounting boss 32 between the fixing member 11 and the limiting member 12 can effectively avoid the case that the elastic member 33 drives the mounting boss 32 to displace greatly, limit the operating member 31 to generate excessive thrust effect on the fixing rod, improve the fixing effect of the abutment and the implant, and avoid the damage of the abutment, the damage of the implant or the damage of the bone quality due to improper force. In the embodiment, the hole diameter of the central through hole formed by the fixing member 11 and the limiting member 12 is smaller than the outer diameter of the mounting boss 32, so as to realize the limiting effect of the fixing member 11 and the limiting member 12 on the mounting boss 32.
[0044] The retaining device can further comprise a retaining auxiliary member 5 connected to the barrel 1 and detachably connected to the retaining member 2, and the operating member 31 can push against the retaining member 2 through the retaining auxiliary member 5. The retaining auxiliary member 5 is arranged to avoid that the operating member 31 directly pushes against the retaining member 2. The cross-sectional area of the lower end surface of the operating member 31 is not less than the cross-sectional area of the upper end surface of the retaining auxiliary member 5, so as to avoid that the upper end surface of the retaining auxiliary member 5 is subjected to uneven pushing effect. The retaining auxiliary member 5 and the retaining member 2 are detachably connected, which facilitates the operator to flexibly replace the retaining member 2 of different specifications according to actual planting requirements (such as the required fixing angle of the implant or a narrow operation space), and improves the versatility of the retaining device. The retaining member 2 can be a straight rod or a bent rod.
[0045] In the embodiment, the retaining auxiliary member 5 and the retaining member 2 are magnetically connected, which facilitates the operator to quickly replace the retaining member 2. In other embodiments, the retaining auxiliary member 5 and the retaining member 2 can also be threadedly connected or buckled, so as to achieve the detachable effect and improve the connection stability of the two.
[0046] Specifically, the barrel 1 is further fixedly provided with a guide member 13, and the retaining auxiliary member 5 is fixedly connected to the guide member 13. The guide member 13 is arranged to provide a definite mounting position for the retaining auxiliary member 5, thereby saving the assembly time of the retaining device.
[0047] In the embodiment, the operating member 31 comprises an operating part 311 and a movable part 312 connected to each other. The operating part 311 is arranged outside the barrel 1, and the movable part 312 is movably arranged in the fixed member 11, so as to realize the movement of the operating member 31 in the vertical direction. The operating part 311 arranged outside the barrel 1 can facilitate the operator to perform force operation. Specifically, the cross-sectional area of the operating part 311 is not less than the cross-sectional area of the barrel 1, so as to avoid that the operating member 31 is subjected to large downward displacement, and to reduce the possibility of damage to the abutment or the implant caused by improper force operation.
[0048] In order to improve the force operation of the operator, a first anti-slip structure 14 can be arranged on the outer wall surface of the barrel 1, and a second anti-slip structure 313 can be arranged on the outer wall surface of the operating part 311, so as to reduce the risk of slipping off the barrel 1 or the operating member 31 in the hand during use.
[0049] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model claim.
Claims
1. A retaining device, characterized in that The application relates to a retaining device for a dental implant, which comprises the following parts: a cylinder (1) with a fixing part (11) fixedly arranged inside the cylinder (1); a retaining part (2) connected to the cylinder (1) and capable of abutting a base; an operating assembly (3) comprising an operating part (31), a mounting boss (32) and an elastic part (33), one end of the operating part (31) extending into the cylinder (1), movably penetrating the fixing part (11) and capable of pushing the retaining part (2), the other end of the operating part (31) being located outside the cylinder (1), the mounting boss (32) being fixedly connected to the operating part (31), and the elastic part (33) being clamped between the mounting boss (32) and the fixing part (11); a force value measuring part (4) configured to detect the acting force of the mounting boss (32) compressing the elastic part (33).
2. The retention device of claim 1, wherein, The force value measuring part (4) is arranged on the operating part (31) or the fixing part (11).
3. The retention device of claim 1, wherein, A limiting part (12) is also fixedly arranged in the cylinder (1), the limiting part (12) and the fixing part (11) being arranged along the axial direction of the cylinder (1) and spaced apart, and the operating part (31) penetrating the fixing part (11) and the limiting part (12).
4. The retention device of claim 3, wherein, The mounting boss (32) is limited between the fixing part (11) and the limiting part (12).
5. The retention device of claim 1, wherein, The retaining device further comprises a retaining auxiliary part (5) connected to the cylinder (1) and detachably connected to the retaining part (2), and the operating part (31) is capable of pushing the retaining part (2) through the retaining auxiliary part (5).
6. The retention device of claim 5, wherein, A guide part (13) is also fixedly arranged in the cylinder (1), and the retaining auxiliary part (5) is fixedly connected to the guide part (13).
7. The retention device of claim 5, wherein, The retaining auxiliary part (5) and the retaining part (2) are magnetically connected.
8. The retention device of any one of claims 1-7, wherein, The operating part (31) comprises an operating part (311) and a movable part (312) connected to each other, the operating part (311) being arranged outside the cylinder (1), and the movable part (312) movably penetrating the fixing part (11).
9. The retention device of claim 8, wherein, The cross-sectional area of the operating part (311) is not less than the cross-sectional area of the cylinder (1).
10. The retention device of claim 8, wherein, A first anti-skid structure (14) is arranged on the outer wall surface of the cylinder (1), and a second anti-skid structure (313) is arranged on the outer wall surface of the operating part (311).