Bone grafting increment bone sheet holder
By designing a curved handle and a built-in magnet self-locking mechanism, the bone graft increment holder solves the problems of inflexible operation and insufficient self-locking of traditional bone graft holders in oral implantology, achieving a highly efficient and stable bone graft holding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional bone fragment holders have limitations in dental implant procedures, such as large handle limitations, difficulty in accurately adjusting the clamping angle, lack of self-locking mechanism leading to high operating intensity and easy fatigue, and high risk of bone fragment slippage and displacement.
The curved handle is designed and uses a built-in magnet and moving mechanism to achieve a self-locking function. Combined with a double-headed jaw and anti-slip diagonal grooves to increase friction, it ensures stable clamping of bone pieces.
It improves operational flexibility and precision, reduces hand fatigue, ensures the stability and positional accuracy of bone grafts during oral implantation, and reduces the risk of slippage and displacement.
Smart Images
Figure CN224099516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field, concretely relates to a bone grafting increment bone piece holder. BACKGROUND
[0002] In the field of oral implantation, due to long-term edentulous, periodontal disease, trauma or congenital alveolar bone development deficiency and other factors, the alveolar bone volume is difficult to meet the ideal requirement of implanting implant, therefore bone grafting increment operation becomes the key preceding step of promoting the success rate of implantation and ensuring the long-term stability of implant, and the performance and design adaptability of bone grafting increment bone piece holder as the indispensable instrument of the operation link are crucial, but the bone piece holding tool applied in the traditional oral implant bone grafting operation has many deficiencies:
[0003] The handle of the traditional bone piece holder is mostly straight rod, in the narrow and complex anatomical structure operation space of oral cavity, the limitation is big, the space is limited and the vision is blocked in the oral cavity, especially in the posterior dental area, straight rod handle makes the wrist difficult to rotate, flex and stretch flexibly when the doctor operates, and it is difficult to accurately adjust the clamping angle and direction to grab and move the bone grafting bone piece.
[0004] (2) The traditional bone piece holder lacks effective and reliable self-locking mechanism, the bone piece source involved in oral implant bone grafting is various, and the shape and texture difference is big, in the process of taking out the bone piece from the supply area, transporting to the implanted alveolar fossa and adjusting the position, the doctor only maintains the clamping state by continuously exerting force with the hand, the operation intensity is big and is easy to fatigue, if the hand is slightly relaxed, the bone piece can slip and shift, resulting in bone grafting position deviation, damaging the prepared implant cavity shape, and affecting the subsequent implant implantation angle and initial stability. SUMMARY
[0005] In view of the above problems, the utility model aims at providing a bone grafting increment bone piece holder, the handle body is curved, the operation flexibility is high, the self-locking function is realized by changing the magnet spacing, the bone grafting position is accurately and stably guaranteed, and the subsequent operation steps are beneficial to smoothly carry out.
[0006] The main idea of the technical scheme adopted by the utility model is as follows: by setting the curved first handle and second handle conforming to the oral structure, and by interlocking through the rotating shaft, the wrist and fingers can flexibly adjust the angle and posture during operation, and the discomfort caused by forcibly adapting to the instrument is reduced; by setting the magnet in the first handle and the second handle respectively, and by changing the spacing between the two magnets to realize the self-locking of the first handle and the second handle, the bone piece clamping instability caused by hand fatigue due to long-time operation is avoided; by designing the double-head pincer beak and cooperating with the anti-skid details, the contact area and friction force with the bone piece are increased, and the clamping fault tolerance is improved.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a bone graft holder for increasing bone size, including a first handle and a second handle. The handles of the first and second handles are curved and hinged to each other via a pivot. The middle parts of the first handle and the second handle overlap, with the first handle positioned above the second handle. A movable magnet is provided inside the first handle, and a fixed magnet is provided inside the second handle to attract the movable magnet. The movable magnet changes its distance from the fixed magnet under the drive of a moving mechanism, thereby achieving self-locking of the first and second handles.
[0008] Furthermore, the above technical solution provides the following: a first pliers beak is provided at the front end of the first handle, a second pliers beak is provided at the front end of the second handle, and finger rings are fixedly connected to the rear ends of both the first handle and the second handle.
[0009] Furthermore, the moving mechanism includes a knob, a universal joint coupling, a screw, and a slider. A knob is provided through the middle of the first handle near the finger ring. The first handle contains a screw and a slider sleeved on the screw. The part of the slider that connects to the screw is threaded. The knob and the screw are connected by a universal joint coupling.
[0010] Furthermore, the slider has a groove on the side near the second handle, which is used to embed the movable magnet into the slider through the groove.
[0011] Furthermore, based on the above technical solution, a fixing block is provided inside the middle part of the second handle near the rotating shaft, and a groove is provided on the side of the fixing block near the first handle for embedding the fixing magnet into the fixing block through the groove.
[0012] Furthermore, through the above technical solution, the first and second jaws are double-headed jaws, and the interior of the jaws and the opposite parts of the first and second jaws are provided with anti-slip diagonal stripes.
[0013] Furthermore, the screw has a polished end at each of its two ends, as described above.
[0014] The beneficial effects of this utility model are:
[0015] 1. The handles of the first and second handles are curved and hinged to each other, which conforms to ergonomics and can better fit the user's hand movements, making it easier to hold and operate, reducing hand fatigue during long-term use, and allowing the user to operate the clamp more flexibly and stably during surgery and other operations.
[0016] 2. By setting a movable magnet in the first handle, setting a fixed magnet attracted to the movable magnet in the second handle, and changing the distance from the fixed magnet under the drive of the moving mechanism to realize self-locking, the self-locking function is realized by the built-in magnet and the moving mechanism, which ensures that the clamping state can be reliably maintained after clamping the bone piece, avoids the bone piece from loosening and falling due to accidental external force and other factors during operation, ensures the stability of the bone piece during operation such as surgery, and facilitates the smooth operation of subsequent related bone augmentation operations.
[0017] 3. By setting a double-head beak and setting anti-skid diagonal lines, the contact area and friction force with the bone piece are increased, so that the bone piece is clamped stably, and the risk of accidental sliding and displacement of the bone piece is minimized during the process of obtaining the bone piece from the supply area, transporting, implanting into the implantation area and adjusting the fitting angle, so that the bone piece is accurately positioned at the predetermined position. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the beak structure of the utility model;
[0020] Figure 3 It is a schematic diagram of the utility model Figure 1 It is a schematic diagram of the internal structure of the first handle;
[0021] Figure 4 It is a schematic diagram of the utility model Figure 1 It is a schematic diagram of the internal structure of the second handle A;
[0022] Figure 5 It is a schematic diagram of the moving mechanism structure of the utility model.
[0023] 1. First handle; 2. Second handle; 3. Pivot; 4. First beak; 5. Second beak; 6. Finger ring; 7. Knob; 101. Universal joint coupling; 1011. Connection end; 102. Light pole end; 103. Slider; 104. Movable magnet; 105. Screw rod; 201. Fixed block; 202. Fixed magnet. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0025] The inventor found that the handle of the traditional bone fragment holder is a straight rod, which is limited in the small and complex oral cavity, and it is difficult to accurately adjust the clamping angle and direction. The traditional holder lacks an effective and reliable self-locking mechanism, and only relies on continuous hand force to maintain clamping, which is tiring and easily causes deviation of the bone graft position, affecting the implant angle and initial stability of the subsequent implant.
[0026] Based on the above findings, the present application provides a bone grafting and bone fragment holder. The handle bodies of the first handle and the second handle are curved and hingedly connected to each other, facilitating gripping and operation. A movable magnet is arranged inside the first handle, and a fixed magnet is arranged inside the second handle to be attracted to the movable magnet. The self-locking function is realized by the built-in magnet and the moving mechanism, ensuring that the clamping state can be reliably maintained after clamping the bone fragment. The double-beaked jaws are provided with anti-slip diagonal lines to increase the contact area and friction with the bone fragment, so that the bone fragment is stably clamped. EMBODIMENT
[0027] Referring to Figures 1-5 The present application discloses a bone grafting and bone fragment holder, which comprises a first handle 1 and a second handle 2. The handle bodies of the first handle 1 and the second handle 2 are curved, and the curvature of the handle bodies is 120°-130°, which facilitates the operator's gripping and force exertion, and improves the accuracy and comfort of operation. The first handle 1 and the second handle 2 are hingedly connected to each other by a rotating shaft 3, ensuring that the two handles can rotate relative to each other. The middle part of the handle body is located at the position of the knob 7 to the position of the rotating shaft 3. The middle part of the handle body of the first handle 1 coincides with the middle part of the handle body of the second handle 2, and the first handle 1 is located above the second handle 2. A first beak 4 is arranged at the front end of the first handle 1, and a second beak 5 is arranged at the front end of the second handle 2. The first beak 4 and the second beak 5 are double-beaked, so that the holder can clamp the bone fragment in different directions and angles, increasing the flexibility and accuracy of operation. Anti-slip diagonal lines are arranged on the inside of the beaks and the opposite parts of the first beak 4 and the second beak 5 to increase the friction during clamping and ensure stable clamping of the bone fragment. The rear ends of the first handle 1 and the second handle 2 are fixedly connected with a finger ring 6, which facilitates the operator's gripping and force exertion. The length of the entire holder is 16-18 cm.
[0028] The first handle 1 and the second handle 2 are hollow inside, the first handle 1 is internally provided with a movable magnet 104, the second handle 2 is internally provided with a fixed magnet 202 which is attracted to the movable magnet 104, the movable magnet 104 changes the distance with the fixed magnet 202 under the drive of a moving mechanism, for realizing the self-locking of the first handle 1 and the second handle 2, the moving mechanism includes a knob 7, a universal joint coupling 101, a screw rod 105 and a sliding block 103, the middle of the first handle 1 is provided with the knob 7 at one end close to the ring 6, for manual adjustment, the inside of the first handle 1 is provided with the screw rod 105 and the sliding block 103 sleeved on the screw rod 105, the part of the sliding block 103 connected with the screw rod 105 is threadedly connected, please see Figure 1 , the screw rod 105 extends in the first handle 1 from the position where the knob 7 is located to the position of A in the Figure 1 , both ends of the screw rod 105 are respectively provided with a light rod end 102, the light rod end close to the shaft 3 is used for limiting the sliding block 103 from moving out of the screw rod 105, the inside of the first handle 1 is further provided with the universal joint coupling 101, the universal joint coupling 101 is provided with two connecting ends 1011, which are respectively connected with the knob 7 and the light rod end 102 close to the knob 7 at one end of the screw rod 105 through a key. The knob 7 and the screw rod 105 are connected through the universal joint coupling 101, so that the rotating power of the knob 7 can be transmitted to the screw rod 105 and drive the screw rod 105 to rotate.
[0029] The sliding block 103 is provided with a groove on the side close to the second handle 2, the movable magnet 104 is embedded in the sliding block 103 through the groove, so that the movable magnet 104 moves with the sliding block 103, the middle of the second handle 2 is internally provided with a fixed block 201 close to one end of the shaft 3, the fixed block 201 is welded in the second handle 2, the fixed block 201 is provided with a groove on the side close to the first handle 1, for embedding the fixed magnet 202 in the fixed block 201 through the groove, specifically, some small clamping grooves are arranged on the edge of the groove, when the magnet is put into the groove, the clamping grooves can clamp the edge of the magnet. The movement of the sliding block 103 drives the movable magnet 104 to move, changes the distance between the movable magnet 104 and the fixed magnet 202, and realizes self-locking.
[0030] In use, first, the bone piece is clamped between the first beak 4 and the second beak 5, the fingers holding the finger ring 6 gently turn the knob 7, the knob 7 drives the screw rod 105 to rotate through the universal joint coupling 101, the rotation of the screw rod 105 drives the slider 103 to move axially along the screw rod 105, and drives the movable magnet 104 to gradually approach the fixed magnet 202, when the movable magnet 104 approaches the fixed magnet 202, the attraction between the two gradually increases, so that the first handle 1 and the second handle 2 approach each other, the first beak 4 and the second beak 5 clamp the bone piece, realizing the self-locking of the first handle 1 and the second handle 2, when it is needed to loosen the bone piece, the operator reversely rotates the knob 7, the slider 103 reversely moves along the screw rod 105, the movable magnet 104 moves away from the fixed magnet 202, the attraction between the two decreases, and the first handle 1 and the second handle 2 are opened by the fingers holding the finger ring 6 to loosen the bone piece.
[0031] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A bone grafting augmentation bone sheet holder, comprising a first handle (1) and a second handle (2), characterized in that: the handle bodies of the first handle (1) and the second handle (2) are curved and are hingedly connected to each other through a rotating shaft (3), the middle part of the handle body of the first handle (1) coincides with the middle part of the handle body of the second handle (2), and the first handle (1) is located above the second handle (2); a movable magnet (104) is arranged inside the first handle (1), a fixed magnet (202) is arranged inside the second handle (2) and is attracted to the movable magnet (104), and the movable magnet (104) changes the distance from the fixed magnet (202) under the drive of a moving mechanism, so as to realize the self-locking of the first handle (1) and the second handle (2).
2. The bone chip holder of claim 1, wherein: a first beak (4) is arranged at the front end of the first handle (1), a second beak (5) is arranged at the front end of the second handle (2), and a finger ring (6) is fixedly connected to the rear end of the first handle (1) and the second handle (2).
3. The bone chip holder of claim 1, wherein: The moving mechanism comprises a knob (7), a universal joint coupling (101), a screw rod (105) and a sliding block (103), one end of the middle part of the first handle (1) close to the finger ring (6) is throughly provided with the knob (7), the inside of the first handle (1) is provided with the screw rod (105) and the sliding block (103) sleeved on the screw rod (105), the part where the sliding block (103) and the screw rod (105) are connected is screw connected, and the knob (7) and the screw rod (105) are connected through the universal joint coupling (101).
4. The bone chip holder according to claim 3, characterized in that: A groove is formed on the side of the sliding block (103) close to the second handle (2), so as to embed the movable magnet (104) in the sliding block (103) through the groove.
5. The bone chip holder of claim 1, wherein: A fixed block (201) is arranged inside one end of the middle part of the second handle (2) close to the rotating shaft (3), a groove is formed on the side of the fixed block (201) close to the first handle (1), so as to embed the fixed magnet (202) in the fixed block (201) through the groove.
6. The bone chip holder of claim 2, wherein: The first beak (4) and the second beak (5) are double-head beaks, and the inside of the beak and the opposite parts of the first beak (4) and the second beak (5) are provided with anti-skid diagonal lines.
7. The bone chip holder according to claim 3, wherein: The screw rod (105) is provided with a light rod end (102) at each end.