Bone wall supporting device for alveolar bone splitting

Abstract

The utility model relates to the technical field of bone wall supporting, and discloses a bone wall supporting device for alveolar bone splitting, which comprises a middle connecting mechanism, an auxiliary internal threaded hole in the longitudinal direction and two longitudinal embedding grooves which are symmetrically arranged and are positioned at the edge position are formed in the middle connecting mechanism; the deformation type supporting mechanism is internally provided with a strip-shaped elastic piece, the bottom of the strip-shaped elastic piece can be embedded into the longitudinal embedding groove, and the structural appearance of the strip-shaped elastic piece is changed by changing the longitudinal height of the strip-shaped elastic piece. According to the bone wall supporting device for the alveolar bone splitting operation, the elastic piece capable of deforming is used for limiting a bone plate of a patient at a notch in an abutting mode, so that the gap of the bone plate is supported, the phenomenon that the labial bone plate is proliferated or displaced towards the gap of the bone plate is avoided, in addition, the elastic piece can be attached to the supporting face in a bent mode, and the supporting effect is good. Therefore, the area of the elastic part and the bone plate at the contact part is increased, the pressure intensity of the bone plate in unit area is reduced, and the working stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bone wall support, in particular to a bone wall supporter for alveolar bone splitting surgery. Background Art

[0002] Alveolar bone splitting is a horizontal bone augmentation procedure for insufficient alveolar bone width. It utilizes the good biological elasticity of the alveolar bone and relies on bone splitting instruments to wedge into the gap between the bilateral cortical bone plates. Through compression and expansion, greenstick fractures (or bone plate displacement) are caused at the base of the alveolar bone, ultimately expanding the horizontal width of the alveolar bone. Alveolar bone splitting can be widely used in mandibular and maxillary edentulous dentition and thinning after edentulous dentition.

[0003] For example, the Chinese patent with publication number "CN216876658U" announced "a bone wall support for alveolar bone splitting surgery", which embeds the bone screw into the alveolar bone through the external threaded section, and fixes the support member inside the bone plate gap through the connecting tube, so that the support member supports the bone plate gap to prevent the labial bone plate from proliferating or displacing into the bone plate gap, ensuring the therapeutic effect of bone splitting surgery combined with guided bone regeneration in narrow alveolar ridge implantation, thereby ensuring that there is sufficient autologous alveolar bone support and good initial stability around the implant implanted later.

[0004] However, in actual use, the support is fixed to the upper end of the connecting tube by crimping screws. At this time, the support supports the gap between the bone plates, thereby preventing the labial bone plate from proliferating or shifting toward the gap between the bone plates. The structural shape of the support is a specific structure, which cannot correspond to the structural shape of the bone plate at the groove, resulting in a relatively small contact area between the support and the bone plate at the groove, which will cause the force intensity of the bone plate at the contact position to be relatively large, which may cause the bone plate to be damaged at the contact position, resulting in poor support stability of the equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a bone wall support for alveolar bone splitting surgery, which utilizes a deformable elastic member to perform a resistance-type limit on the patient's bone plate at the notch, thereby supporting the gap between the bone plates and preventing the labial bone plate from proliferating or displacing toward the gap between the bone plates. In addition, the elastic member can be bent and fitted to the supporting surface, thereby increasing the contact area between the elastic member and the bone plate to reduce the pressure per unit area of ​​the bone plate, thereby improving the working stability of the equipment and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bone wall support for alveolar bone splitting surgery, including a bone screw with a main external thread structure on the outer circumferential surface and a raised column structure integrally arranged on the top of the bone screw, and also including a middle connecting mechanism, which is provided with a longitudinal secondary internal thread hole and two symmetrically arranged and located at the edge of the longitudinal embedding groove; and a deformable supporting mechanism, which is provided with a strip elastic member whose bottom can be embedded in the longitudinal embedding groove and the structural shape can be changed by changing the longitudinal height.

[0007] Preferably, the middle connecting mechanism includes a cylindrical body, the bottom end of the cylindrical body is provided with a component fixing groove fixedly installed on the periphery of the raised column structure, the center of the cylindrical body is provided with a downwardly recessed secondary internal threaded hole, the cylindrical body is provided with an internal thread structure on the inner circumferential surface of the secondary internal threaded hole, and the interior of the cylindrical body is provided with two longitudinal embedded grooves with the top ends being open.

[0008] Preferably, the cylindrical body is made of alloy material.

[0009] Preferably, the longitudinal embedding groove is symmetrically arranged about the axis center line of the cylindrical body, and the longitudinal embedding groove is arranged close to the edge of the cylindrical body.

[0010] Preferably, the deformable support mechanism includes a circular plate body, the circumferential surface of which is mounted with two strip-shaped elastic members whose bottoms can be inserted into the longitudinal embedding groove, a component placement cavity is arranged at the center of the circular plate body, a rotatable hexagonal rotating head is placed inside the component placement cavity of the circular plate body, an inner hexagonal groove with an inner concave structure is arranged on the upper end surface of the hexagonal rotating head, a threaded rod structure which is an integral structure with the hexagonal rotating head and can be inserted into the secondary internal threaded hole is arranged at the bottom end of the hexagonal rotating head, and a secondary external thread structure is arranged on the rod body of the threaded rod structure.

[0011] Preferably, the secondary external thread structure and the internal thread structure match each other.

[0012] Preferably, the structural shape of the cross section of the longitudinal embedded groove is consistent with the structural shape of the cross section of the strip elastic member, and the structural dimension of the cross section of the longitudinal embedded groove matches the structural dimension of the cross section of the strip elastic member.

[0013] Compared with the prior art, the utility model provides a bone wall support for alveolar bone splitting surgery, which has the following beneficial effects:

[0014] The bone wall supporter for alveolar bone splitting surgery utilizes a deformable elastic member to perform a resistance-type limit on the patient's bone plate at the notch, thereby supporting the gap between the bone plates and preventing the labial bone plate from proliferating or shifting toward the gap between the bone plates. In addition, the elastic member can be bent and fitted to the support surface, thereby increasing the contact area between the elastic member and the bone plate to reduce the pressure per unit area of ​​the bone plate, thereby improving the working stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the middle connecting mechanism of the utility model;

[0018] Figure 4 It is a three-dimensional cross-sectional view of the middle connecting mechanism of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of the deformable support mechanism in the utility model;

[0020] Figure 6 It is a three-dimensional cross-sectional view of the deformable support mechanism in the utility model.

[0021] Among them: 1. bone screw; 2. main external thread structure; 3. middle connection mechanism; 31. cylindrical body; 32. component fixing groove; 33. secondary internal thread hole; 34. internal thread structure; 35. longitudinal embedding groove; 4. deformable support mechanism; 41. circular plate body; 42. component placement cavity; 43. strip elastic member; 44. threaded rod structure; 45. internal hexagonal groove; 46. secondary external thread structure; 47. hexagonal rotating head; 5. raised column structure. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2A bone wall supporter for alveolar bone splitting surgery includes a bone screw 1 with a main external thread structure 2 on the outer circumferential surface and a raised column structure 5 integrally arranged on the top of the bone screw 1. The alveolar bone is vertically split by a bone splitting instrument to form a bone plate gap, and then the bone screw 1 is screwed into the inside of the bone plate gap through the main external thread structure 2, and two strip elastic members 43 correspond to the two contact surfaces of the bone plate gap respectively.

[0024] To increase the adaptability of your device, see Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up a middle connection mechanism 3, which is provided with a longitudinal auxiliary internal threaded hole 33 and two symmetrically arranged longitudinal embedding grooves 35 located at the edge. First, the strip elastic member 43 is adjusted according to the depth of the patient at the bone plate gap, so that the bottom structure of the strip elastic member 43 is inserted into the longitudinal embedding groove 35, and the structural length of the strip elastic member 43 exposed above the cylindrical body 31 meets the depth requirement, and then a vise is used to apply a clamping force to the circumferential surface of the cylindrical body 31 on both sides of the longitudinal embedding groove 35, so that the cylindrical body 31 is deformed, and the bottom structure of the strip elastic member 43 is tightly clamped and fixed inside the longitudinal embedding groove 35, so that the optimal working range of the device can be adjusted according to actual conditions to improve the working adaptability range of the device;

[0025] For the specific structure of the middle connecting mechanism 3, please refer to Figure 3 and Figure 4 , including a cylindrical body 31. In order to generate deformation clamping ability, the cylindrical body 31 needs to be made of alloy material. The bottom end of the cylindrical body 31 is provided with a component fixing groove 32 fixedly installed on the periphery of the raised column structure 5. The center of the cylindrical body 31 is provided with a downwardly recessed secondary internal threaded hole 33. The cylindrical body 31 is provided with an internal thread structure 34 on the inner circumferential surface of the secondary internal threaded hole 33. The interior of the cylindrical body 31 is provided with two longitudinal embedded grooves 35 with open tops. In order to generate effective deformation of specific parts after being subjected to a force acting toward the center, it is necessary to make the longitudinal embedded grooves 35 symmetrically arranged about the axis of the cylindrical body 31, and the longitudinal embedded grooves 35 are arranged close to the edge of the cylindrical body 31.

[0026] To achieve a conformable support effect on the gap between the plates, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a deformable support mechanism 4, in which a strip elastic member 43 is arranged inside, the bottom of which can be embedded in the longitudinal embedding groove 35 and the longitudinal height can be changed to change the structural shape. When the bottom of the strip elastic member 43 is fixed, a hexagonal wrench is inserted into the inner hexagonal groove 45, and then the threaded rod structure 44 is rotated. Due to the action of the threaded structure, the threaded rod structure 44 will drive the circular plate body 41 to move downward. At this time, the strip elastic member 43 will bulge to one side due to the force on the end, until the end face of the strip elastic member 43 contacts the contact surface of the bone plate gap, and the strip elastic member 43 will fit the contact surface of the bone plate gap and apply force to the bone plate, thereby realizing the support function of the bone plate gap.

[0027] For the specific structure of the deformable support mechanism 4, please refer to Figure 5 and Figure 6 , including a circular plate body 41, the circumferential surface of which is provided with two strip elastic members 43 whose bottoms can be inserted into the interior of the longitudinal embedding groove 35. In order to prevent the occurrence of equipment instability caused by mechanical clearance, it is necessary to make the structural shape of the cross section of the longitudinal embedding groove 35 consistent with the structural shape of the cross section of the strip elastic member 43, and the structural size of the cross section of the longitudinal embedding groove 35 matches the structural size of the cross section of the strip elastic member 43. A component placement cavity 42 is arranged at the center of the circular plate body 41, and a rotatable hexagonal rotating head 47 is placed inside the component placement cavity 42 of the circular plate body 41. The upper end surface of the hexagonal rotating head 47 is provided with an inner hexagonal groove 45 of an inner concave structure, and the bottom end of the hexagonal rotating head 47 is provided with a threaded rod structure 44 which is an integral structure with it and can be inserted into the interior of the secondary internal threaded hole 33, and a secondary external thread structure 46 is arranged on the rod body of the threaded rod structure 44, and the secondary external thread structure 46 matches the internal thread structure 34.

[0028] When in use, the alveolar bone is vertically split by a bone splitting instrument to form a bone plate gap. The strip elastic member 43 is adjusted according to the depth of the patient's bone plate gap, so that the bottom structure of the strip elastic member 43 is inserted into the longitudinal embedding groove 35, and the structural length of the strip elastic member 43 exposed above the cylindrical body 31 meets the depth requirement. Then, a vise is used to apply a clamping force to the circumferential surface of the cylindrical body 31 on both sides of the longitudinal embedding groove 35, so that the cylindrical body 31 is deformed, and the bottom structure of the strip elastic member 43 is tightly clamped and fixed inside the longitudinal embedding groove 35. Then, the bone nail 1 is screwed into the bone plate gap through the main external thread structure 2, and the two strip elastic members 43 correspond to the two contact surfaces of the bone plate gap respectively.

[0029] By inserting a hexagonal wrench into the inner hexagonal groove 45 and then rotating the threaded rod structure 44, the threaded rod structure 44 will drive the circular plate body 41 to move downward. At this time, the strip elastic member 43 will bulge to one side due to the force applied to the end thereof until the end face of the strip elastic member 43 contacts the contact surface of the bone plate gap.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bone wall support for alveolar bone splitting surgery, comprising a bone screw (1) having a main external thread structure (2) on its outer circumferential surface and a protruding column structure (5) integrally arranged at the top of the bone screw (1), characterized in that: Also includes, A middle connecting mechanism (3) is provided with a longitudinally oriented secondary internal threaded hole (33) and two symmetrically arranged longitudinal embedded grooves (35) located at the edge; And a deformable support mechanism (4), which is provided with a strip elastic member (43) whose bottom can be embedded in the longitudinal embedding groove (35) and whose structural appearance can be changed by changing the longitudinal height.

2. The bone wall support for alveolar bone splitting surgery according to claim 1, characterized in that: The middle connecting mechanism (3) comprises a columnar body (31), the bottom end of the columnar body (31) is provided with a component fixing groove (32) fixedly mounted on the periphery of the raised column structure (5), the center of the columnar body (31) is provided with a downwardly recessed secondary internal threaded hole (33), the columnar body (31) is provided with an internal threaded structure (34) on the inner circumferential surface of the secondary internal threaded hole (33), and the interior of the columnar body (31) is provided with two longitudinal embedding grooves (35) with the top ends in an open state.

3. The bone wall support for alveolar bone splitting surgery according to claim 2, characterized in that: The cylindrical body (31) is made of alloy material.

4. The bone wall support for alveolar bone splitting surgery according to claim 3, characterized in that: The longitudinal embedding groove (35) is symmetrically arranged about the axis of the columnar body (31), and the longitudinal embedding groove (35) is arranged close to the edge of the columnar body (31).

5. The bone wall support for alveolar bone splitting surgery according to claim 4, characterized in that: The deformable support mechanism (4) comprises a circular plate body (41), the circumferential surface of which is provided with two strip elastic members (43) whose bottoms can be inserted into the interior of the longitudinal embedding groove (35), the center of which is provided with a component placement cavity (42), the circular plate body (41) is provided with a rotatable hexagonal rotating head (47) located inside the component placement cavity (42), the upper end surface of the hexagonal rotating head (47) is provided with an inner hexagonal groove (45) of an inner concave structure, the bottom end of the hexagonal rotating head (47) is provided with a threaded rod structure (44) which is integrally formed with the hexagonal rotating head and can be inserted into the interior of the secondary internal threaded hole (33), and the rod body of the threaded rod structure (44) is provided with a secondary external thread structure (46).

6. The bone wall support for alveolar bone splitting surgery according to claim 5, characterized in that: The secondary external thread structure (46) and the internal thread structure (34) match each other.

7. The bone wall support for alveolar bone splitting surgery according to claim 6, characterized in that: The structural shape of the cross section of the longitudinal embedded groove (35) is consistent with the structural shape of the cross section of the strip-shaped elastic member (43), and the structural dimensions of the cross section of the longitudinal embedded groove (35) match the structural dimensions of the cross section of the strip-shaped elastic member (43).

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