An oral alveolar bone repair device

Abstract

The utility model belongs to alveolar bone repair field especially, and relates to an oral alveolar bone repair device. The technology includes conveyor body, and the conveyor body has conveying guide pipe and inner push rod, the conveying guide pipe is divided into curved section and straight section, the connecting end outer wall of curved section is fixed with several evenly distributed claws along the circumferential direction, the connecting end of straight section is sleeved with connecting sleeve, the inner wall of connecting sleeve is provided with several clamping grooves for independent clamping corresponding clamping tooth, and the connecting sleeve is provided with locking assembly. By pulling out the connecting end of curved section from the connecting sleeve, the orientation of the curved section is rotated according to the required, the connecting end of curved section is inserted into the connecting sleeve, all clamping teeth are clamped into the clamping groove aligned with it, and the curved section is positioned through the cooperation of clamping tooth and clamping groove. The curved section inserted into the connecting sleeve is locked by using the locking assembly. The end orientation of curved section is adjusted to adapt to different surgical scenes or operation requirements.

Description

Technical Field

[0001] This utility model belongs to the field of alveolar bone repair, and in particular relates to an oral alveolar bone repair device. Background Technology

[0002] Alveolar bone is a specialized bone tissue that surrounds and supports tooth roots, forming an arched structure embedded within the upper and lower jawbones. It consists of a dense outer cortical bone and a honeycomb-like inner cancellous bone, connected to the teeth via the periodontal ligament. It not only stabilizes tooth position but also adapts to changes in chewing pressure through bone remodeling. When teeth are lost or periodontal disease develops, the alveolar bone gradually atrophies due to lack of stimulation, affecting oral function and facial appearance, requiring treatment or restorative methods to maintain its health.

[0003] In alveolar bone restoration, common methods include autologous bone grafting, artificial bone grafting, guided bone regeneration, and maxillary sinus lift. In artificial bone grafting, specialized bone grafting tools are needed to precisely implant bone grafts into the appropriate areas to increase bone height. Currently common bone grafting devices mainly consist of a delivery tube and an inner pusher, with the delivery tube having a specific curved end. However, in clinical application, when doctors use existing bone grafting devices to deliver bone grafts into the alveolar bone, they cannot adjust the orientation of the curved end of the delivery tube. This requires repeated wrist twisting to find the correct direction, easily leading to wrist injury and fatigue, and interfering with subsequent surgical procedures. Utility Model Content

[0004] The purpose of this invention is to provide an oral alveolar bone repair device that can adjust the orientation of the end of the delivery catheter.

[0005] The oral alveolar bone repair device includes a delivery body, which has a delivery conduit and an inner push rod. The delivery conduit is divided into a curved section and a straight section. Several locking teeth are fixed on the outer wall of the connecting end of the curved section and evenly distributed in the circumferential direction. A connecting sleeve is fitted on the connecting end of the straight section. Several slots for independently engaging the corresponding locking teeth are opened on the inner wall of the connecting sleeve. A locking component is provided on the connecting sleeve to lock the connecting end of the curved section inside the connecting sleeve.

[0006] Furthermore, the locking assembly includes a locking screw, and the outer wall of the connecting sleeve has a threaded hole that communicates with the inner and outer sides. The locking screw passes through the threaded hole and is threadedly engaged with it. The outer wall of the curved section has a first blind hole for independently inserting the threaded end of the locking screw.

[0007] Furthermore, the locking component includes a positioning pin, and the outer wall of the connecting sleeve has a through hole that is internally and externally connected and used for independently inserting the positioning pin. An elastic sleeve is fitted on the positioning pin, and the elastic sleeve and the through hole are in an interference fit. The outer wall of the curved section has a second blind hole for independently inserting the end of the positioning pin.

[0008] Furthermore, the outer corner of the inner end of the elastic sleeve is provided with an oblique angle.

[0009] Furthermore, a sealing ring is independently installed inside the connecting sleeve, and the sealing ring is located between the curved section and the straight section.

[0010] Furthermore, the operating end of the inner push rod is independently fitted with a combination sleeve, a finger ring is fixed on the combination sleeve, and a fixing component is provided on the combination sleeve to lock the operating end of the inner push rod inside it.

[0011] Furthermore, the outer wall of the connecting sleeve is provided with a plurality of first anti-slip protrusions, and the outer wall of the connecting end of the curved section is provided with a plurality of second anti-slip protrusions.

[0012] Compared with the prior art, the present invention has the following beneficial effects: When the orientation of the delivery catheter tip needs to be adjusted to suit the surgical scenario or operational requirements, first remove the connecting end of the curved section from the connecting sleeve, separating the curved and straight sections. Rotate the curved section according to the required angle until the end of the curved section faces the desired direction. Then insert the connecting end of the curved section into the connecting sleeve, ensuring all the locking teeth engage with the aligned slots. The curved section is positioned by the engagement of the locking teeth and slots. Finally, lock the curved section inserted into the connecting sleeve using the locking assembly. By adjusting the orientation of the curved section tip to suit different surgical scenarios or operational requirements, this device makes it more convenient and easier for doctors to use, reducing hand fatigue, improving operational efficiency, reducing operational difficulty, avoiding additional damage to the patient, enhancing surgical safety and precision, and providing a stronger guarantee for surgical success. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view at point AA; Figure 3 This diagram illustrates the first locking method between the connecting sleeve and the delivery conduit. Figure 4 This diagram illustrates a second locking method between the connecting sleeve and the delivery conduit. Figure 5 for Figure 1 Enlarged view of region b in the middle; Figure 6This is a perspective view of the present utility model; Figure 7 This is an exploded view of the present invention; The components in the diagram are named as follows: 1. Delivery conduit; 1.1. Bent section; 1.2. Straight section; 2. Inner push rod; 3. Connecting sleeve; 4. Clamping teeth; 5. First anti-slip protrusion; 6. Second anti-slip protrusion; 7. Sealing ring; 8. Locking screw; 9. Positioning pin; 10. Elastic sleeve; 11. Combination sleeve. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0015] Example This embodiment describes an oral alveolar bone repair device, such as... Figure 1 , Figure 3 As shown in Figure 7, the device includes a delivery body, which has a delivery conduit 1 and an inner push rod 2. In this embodiment, the delivery body has the same structure as the existing bone powder delivery device, and its core structure includes two main parts: the delivery conduit and the inner push rod. It is mainly used to accurately deliver bone powder and implant it into the target area, thereby effectively achieving the clinical treatment goal of increasing bone height. The delivery conduit 1 is divided into a curved section 1.1 and a straight section 1.2; as shown... Figure 1 and Figure 7 As shown, the curved section 1.1 is the tube part with a curved shape on the left side. This curved structure is used to adapt to the requirements of the delivery path; the straight section 1.2 is the tube part with a straight state on the right side. Its straightness is used to make it suitable for insertion into the oral cavity. By combining and connecting the curved section 1.1 and the straight section 1.2, a complete delivery conduit 1 can be constructed to realize the delivery function. Several locking teeth 4, evenly distributed along the circumference, are fixed on the outer wall of the connecting end of the curved section 1.1; such as Figure 1 and Figure 7 As shown, the connecting end of the curved section 1.1 is close to the end of the straight section 1.2; in this embodiment, the cross-section of the locking tooth 4 is triangular, and the right side wall of all locking teeth 4 is flush with the right end face of the curved section 1.1; of course, the cross-section of the locking tooth 4 can also be semi-circular. A connecting sleeve 3 is fitted onto the connecting end of the straight section 1.2; such as Figure 1 , Figure 3 and Figure 7 As shown, the connecting end of the straight section 1.2 is inserted into the connecting sleeve 3, and the connecting end of the straight section 1.2 is fixed to the inner wall of the connecting sleeve 3; The inner wall of the connecting sleeve 3 has several slots for independently engaging the corresponding teeth 4; such as Figure 1 , Figure 3 and Figure 7 As shown, all the slots are evenly distributed along the circumferential direction of the inner wall of the connecting sleeve 3, and the number of slots and the number of teeth 4 are the same. When it is necessary to adjust the orientation of the end of the delivery conduit 1 to adapt to different surgical scenarios or operational needs, the connecting end of the curved section 1.1 can be pulled out from the connecting sleeve 3 first, separating the curved section 1.1 and the straight section 1.2. The angle of the curved section 1.1 can be rotated according to the required angle until the end of the curved section 1.1 faces the required direction. Then, the connecting end of the curved section 1.1 can be inserted into the connecting sleeve 3, so that all the teeth 4 can engage in the slots that are aligned with it. The curved section 1.1 is positioned by the cooperation of the teeth 4 and the slots, which effectively prevents the curved section 1.1 from rotating and deviating on its own during subsequent operations, thereby ensuring that the delivery conduit 1 can stably and accurately complete the delivery of bone powder and other substances. The outer wall of the connecting sleeve 3 is provided with several first anti-slip protrusions 5, and the outer wall of the connecting end of the bent section 1.1 is provided with several second anti-slip protrusions 6; such as Figure 1 , Figure 3 and Figure 7 As shown, when the doctor is disassembling and assembling the curved section 1.1 and the straight section 1.2, his hand will be held on the curved section 1.1 and the connecting sleeve 3. At this time, the first anti-slip protrusion 5 can increase the friction between the hand and the first anti-slip protrusion 5, and the second anti-slip protrusion 6 can increase the friction between the hand and the curved section 1.1, so as to avoid the hand slipping and make the disassembly and assembly process more stable and effective. To elaborate further, such as Figure 3 As shown, in this embodiment, a preferred embodiment includes a locking screw 8. The outer wall of the connecting sleeve 3 has a threaded hole that communicates internally and externally. The locking screw 8 passes through the threaded hole and is threadedly engaged with it. The outer wall of the bent section 1.1 has a first blind hole for independently inserting the threaded end of the locking screw 8. Figure 3 As shown, in this embodiment, after the curved section 1.1 and the straight section 1.2 of the delivery conduit 1 have been angled and initially positioned by the connecting sleeve 3, the locking screw 8 is aligned with the threaded hole on the outer wall of the connecting sleeve 3 and slowly screwed in by hand or tool (such as a screwdriver). Appropriate torque is continuously applied to make it penetrate deeper along the axis of the threaded hole. After its threaded end enters the first blind hole on the outer wall of the curved section 1.1, it is tightened to a suitable preload to complete the locking. This locking method can restrict the movement and rotation freedom of the curved section 1.1 in all directions, prevent it from rotating out of position or coming off the connecting sleeve 3 due to force during operation, ensure that it always maintains the set angle and position, ensure accurate delivery of bone powder, improve the accuracy and reliability of operation, and also facilitate doctors to quickly adjust and lock the angle of the curved section 1.1. The whole solution constitutes a locking component that locks the connecting end of the curved section 1.1 in the connecting sleeve 3. Of course, the locking component can also use a positioning pin 9. The outer wall of the connecting sleeve 3 has a through hole that communicates internally and externally for independently inserting the positioning pin 9. An elastic sleeve 10 is fitted onto the positioning pin 9, and the elastic sleeve 10 and the through hole are in an interference fit. The outer wall of the bent section 1.1 has a second blind hole for independently inserting the end of the positioning pin 9; such as... Figure 4 As shown, after the curved section 1.1 and straight section 1.2 of the delivery conduit 1 are adjusted and initially positioned by the connecting sleeve 3, the elastic sleeve 10 is first securely fitted onto the positioning pin 9. Then, holding the positioning pin 9 with the elastic sleeve 10, its end is aligned with the perforation on the outer wall of the connecting sleeve 3 and appropriate force is applied to insert it. The resistance generated by the interference fit between the elastic sleeve 10 and the perforation is used to continuously apply force until the end of the positioning pin 9 penetrates the second blind hole on the outer wall of the curved section 1.1 and is locked. The friction and resistance between the elastic sleeve 10 and the hole wall prevent the positioning pin 9 from coming out. When disassembling or adjusting the angle, apply appropriate force to the positioning pin 9. The appropriate pulling force overcomes the interference fit force to pull out the positioning pin 9; the elastic sleeve 10 and the through hole of this locking method generate a large friction force, which, together with the end of the positioning pin 9 inserted into the second blind hole, makes the connection stable and reliable, and can withstand various external forces such as pushing force and pulling force. It can restrict the movement and rotation freedom of the bending section 1.1 in all directions, prevent it from rotating or falling out of the connecting sleeve 3 due to force during operation, and ensure that it always maintains the set angle and position; at the same time, its installation and disassembly are simple, which makes it easy for doctors to quickly adjust the angle of the locking bending section 1.1, and also facilitates equipment maintenance and repair, and reduces maintenance costs.

[0016] The outer corner of the inward-facing end of the elastic sleeve 10 is provided with an angle; such as Figure 4 As shown, when the positioning pin 9 is installed between the connecting sleeve 3 and the bent section 1.1 to achieve locking, because the outer corner of the inner end of the elastic sleeve 10 is provided with an angle, when the doctor applies axial thrust during installation, the angle first contacts the edge of the perforation and compresses the elastic sleeve 10 inward along its inclined surface, so that the positioning pin 9 can enter the perforation more smoothly. For the doctor, this makes the installation easier and less strenuous, reduces the difficulty of operation and labor intensity, and improves the comfort and convenience of operation. A sealing ring 7 is independently installed inside the connecting sleeve 3, and the sealing ring 7 is located between the bent section 1.1 and the straight section 1.2; for example Figure 1 , Figure 2 and Figure 3 As shown, the sealing ring 7 is made of medical rubber, medical silicone, medical latex and other materials; when the connecting end of the straight section 1.2 is inserted into the connecting sleeve 3, it will apply a squeezing force to the sealing ring 7, so that the sealing ring 7 is tightly attached to the inner wall of the connecting sleeve 3, the end face of the curved section 1.1 and the straight section 1.2, and effectively prevent bone powder from leaking through the gap by sealing the gaps. An independent assembly sleeve 11 is fitted onto the operating end of the inner push rod 2. A finger ring is fixed to the assembly sleeve 11, and a fixing component is provided on the assembly sleeve 11 to lock the operating end of the inner push rod 2 inside it; such as Figure 1, Figure 5 and Figure 7 As shown, in this embodiment, the combination sleeve 11 is locked by screws, but it can also be locked by positioning pins. In use, after the angle of the curved section 1.1 is adjusted, the doctor first determines the appropriate position of the finger ring on the combination sleeve 11 according to the new angle of the curved section 1.1. Then, the screws are released from locking the operating end of the inner push rod 2, and the combination sleeve 11 is manually rotated to drive the finger ring to the predetermined angle. Finally, the screws are reoperated to firmly lock the operating end of the inner push rod 2 inside the combination sleeve 11. By adjusting the angle of the finger ring to match the angle after the adjustment of the curved section 1.1, the doctor can use this oral alveolar bone repair device more conveniently and easily. Based on ergonomics, the finger ring can be adjusted to a comfortable angle, reducing hand fatigue, improving operating efficiency, reducing operating difficulty, avoiding additional damage to the patient, improving surgical safety and precision, and providing a stronger guarantee for surgical success. When cleaning and disinfecting this dental alveolar bone restoration device, the preferred steps are manual cleaning (to remove contaminants and prevent drying and hardening, which would increase the difficulty of cleaning), mechanical cleaning (ultrasonic cleaner, with the alveolar bone restoration device completely submerged 2cm below the liquid surface to facilitate cleaning of contaminants in corners and reduce contaminant residue), and sterilization (soaking in disinfectant solution, high-pressure steam sterilization, dry heat sterilization, etc.). Following these preferred steps can effectively clean and disinfect this dental alveolar bone restoration device.

[0017] In actual use, when it is necessary to adjust the orientation of the end of the delivery catheter 1 to adapt to the surgical scenario or operational requirements, first pull the connecting end of the curved section 1.1 out of the connecting sleeve 3 to separate the curved section 1.1 and the straight section 1.2. Rotate the angle of the curved section 1.1 according to the required angle until the end of the curved section 1.1 faces the required direction. Then insert the connecting end of the curved section 1.1 into the connecting sleeve 3, so that all the locking teeth 4 engage with the aligned slots. The curved section 1.1 is positioned by the cooperation of the locking teeth 4 and the slots. Finally, align the locking screw 8 with the connecting sleeve. 3. Slowly screw the threaded hole on the outer wall into the device by hand or with a tool, continuously applying appropriate torque to allow it to penetrate deeper along the axis of the threaded hole. Once the threaded end enters the first blind hole on the outer wall of the curved section 1.1, continue tightening to a suitable preload to lock the connection end of the curved section 1.1. Then, the doctor first determines the appropriate position for adjusting the ring on the combination sleeve 11 based on the new angle of the curved section 1.1. Next, the doctor releases the screw locking the operating end of the inner push rod 2, manually rotates the combination sleeve 11 to move the ring to the predetermined angle, and finally re-operates the screw to firmly lock the operating end of the inner push rod 2 inside the combination sleeve 11. By adjusting the orientation of the end of the curved section 1.1 and the angle of the ring on the inner push rod 2, the device can adapt to different surgical scenarios or operational needs, making it more convenient and easier for doctors to use this oral alveolar bone repair device, reducing hand fatigue, improving operational efficiency, reducing operational difficulty, avoiding additional damage to the patient, improving surgical safety and precision, and providing a stronger guarantee for surgical success.

Claims

1. An oral alveolar bone repair device, comprising a delivery body, the delivery body having a delivery conduit (1) and an inner push rod (2), characterized in that: The delivery conduit (1) is divided into a curved section (1.1) and a straight section (1.2). Several teeth (4) evenly distributed along the circumference are fixed on the outer wall of the connecting end of the curved section (1.1). A connecting sleeve (3) is fitted on the connecting end of the straight section (1.2). Several slots for independently engaging the corresponding teeth (4) are provided on the inner wall of the connecting sleeve (3). A locking component is provided on the connecting sleeve (3) to lock the connecting end of the curved section (1.1) inside the connecting sleeve (3).

2. The oral alveolar bone repair device according to claim 1, characterized in that: The locking assembly includes a locking screw (8), and the outer wall of the connecting sleeve (3) is provided with a threaded hole that is connected to the inside and outside. The locking screw (8) is inserted into the threaded hole and is threadedly engaged with it. The outer wall of the curved section (1.1) is provided with a first blind hole for independently inserting the threaded end of the locking screw (8).

3. The oral alveolar bone repair device according to claim 1, characterized in that: The locking component includes a positioning pin (9), and the outer wall of the connecting sleeve (3) is provided with a through hole that is open to the inside and outside and is used for independently inserting the positioning pin (9). An elastic sleeve (10) is fitted on the positioning pin (9), and the elastic sleeve (10) and the through hole are in an interference fit. The outer wall of the curved section (1.1) is provided with a second blind hole for independently inserting the end of the positioning pin (9).

4. The oral alveolar bone repair device according to claim 3, characterized in that: The elastic sleeve (10) has an oblique angle at the outer corner of the inward end.

5. The oral alveolar bone repair device according to claim 1, characterized in that: The connecting sleeve (3) is independently fitted with a sealing ring (7), which is located between the curved section (1.1) and the straight section (1.2).

6. The oral alveolar bone repair device according to claim 1, characterized in that: The operating end of the inner push rod (2) is independently fitted with a combination sleeve (11), a finger ring is fixed on the combination sleeve (11), and a fixing member is provided on the combination sleeve (11) to lock the operating end of the inner push rod (2) inside it.

7. The oral alveolar bone repair device according to claim 1, characterized in that: The outer wall of the connecting sleeve (3) is provided with a number of first anti-slip protrusions (5), and the outer wall of the connecting end of the curved section (1.1) is provided with a number of second anti-slip protrusions (6).

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