Bone taking column set for oral implantation

Abstract

The utility model belongs to the technical field of oral implanting equipment, and particularly relates to a bone column taking set for oral implanting, which comprises a box body and a box cover hinged with the box body, a flexible clamping plate is placed in the box body, and a bone taking drill and a bone column ejector pin which are split are clamped on the clamping plate; the bone taking drill comprises a drill bit and a mounting head, the drill bit is of an annular cylinder structure, bone taking teeth are arranged on one end face of the drill bit, internal threads are arranged on the inner side wall of the other end of the drill bit, the mounting head comprises a connecting rod, an annular mounting groove is formed in one end of the connecting rod, an anti-rotation clamping notch is formed in the end in the length direction of the connecting rod, and external threads connected with the drill bit are arranged at the other end of the connecting rod. A limiting plate is arranged in the middle of the connecting rod and is adjacent to the external thread; the bone column ejector pin comprises an ejector rod, and one end of the ejector rod is provided with a first positioning block. The bone taking drill is divided into the drill bit and the mounting head which are in threaded connection, the drill bit and the mounting head are separated after bone taking is completed, then the taken-down bone column can be ejected out of the drill bit through the bone column ejector pin, the bone column taking-out difficulty is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of dental implant equipment technology, and in particular to a bone harvesting column kit for dental implantation. Background Technology

[0002] In dental implantology, if the socket left after a tooth extraction is large, the patient will need bone grafting if they want to get a dental implant. Bone grafting requires bone powder. If the socket is large, a large bone block is needed to accelerate bone growth, so bone harvesting is required.

[0003] Currently, bone harvesting typically involves drilling a bone column at the harvest site using a bone harvesting drill, then prying the bone column off to remove it. A commonly used bone harvesting drill, such as the one described in patent number 202321872642.1 for dental implant surgery, includes a handpiece connecting rod and a bone harvesting drill body. The connecting rod and the drill body are connected end-to-end, allowing the drill to connect to the handpiece. The drill body is used to remove bone from the implant site. This invention aims to simplify bone harvesting surgery, improve bone grafting efficiency, streamline the process, and reduce patient discomfort.

[0004] However, because the removed bone column gets stuck inside the bone harvesting drill, it is time-consuming and laborious to remove the bone column from the drill, which affects the operation time.

[0005] To address the aforementioned issues, this utility model document proposes a bone harvesting kit for dental implantation. Utility Model Content

[0006] This invention provides a bone harvesting kit for dental implants, which reduces the difficulty of removing the bone column from the bone harvesting drill, improves efficiency, and shortens the operation time.

[0007] This utility model provides the following technical solution:

[0008] A bone harvesting column kit for dental implantation includes a box body and a box cover hinged to the box body. A flexible card plate is placed inside the box body, and a separate bone harvesting drill and bone column pin are held on the card plate.

[0009] The bone-harvesting drill includes a drill bit and an mounting head. The drill bit is a ring-shaped cylindrical structure with bone-harvesting teeth on one end face and internal threads on the inner sidewall of the other end. The mounting head includes a connecting rod. One end of the connecting rod has an annular mounting groove and an anti-rotation jamming groove along the length of the connecting rod. The other end has an external thread that connects to the drill bit. A limiting plate is provided in the middle of the connecting rod, and the limiting plate is adjacent to the external thread.

[0010] The bone column pin includes a push rod, the diameter of which is less than or equal to the diameter of the drill bit's inner hole, and a first positioning block is provided at one end of the push rod.

[0011] Furthermore, the outer wall of the threaded end of the drill bit is provided with a locking block, the locking block is a ring-shaped cylindrical structure, and the side wall of the locking block is provided with a first milling plane.

[0012] Furthermore, the end of the connecting rod connected to the drill bit is provided with a connecting block, which is a cylindrical structure, and the side wall of the connecting block is provided with an external thread that mates with the drill bit.

[0013] Furthermore, the limiting plate abuts against the connecting block.

[0014] Furthermore, it also includes a handle, which is a cylindrical structure with a through hole in its middle along the length direction that matches the drill bit. The outer wall of the handle is provided with an annular protrusion, and the side wall at one end of the through hole is provided with a limiting groove that matches the limiting block.

[0015] Furthermore, the surface of the protrusion is provided with anti-slip grooves and a second milled plane.

[0016] Furthermore, it also includes an extender, which includes an extension rod. The extension rod is a hollow tubular structure, and its inner side wall is provided with a limiting block that cooperates with the anti-rotation clip on the connecting rod.

[0017] Furthermore, one end of the extension rod has a constricted structure, and multiple through slots are evenly opened at this end along the length direction of the extension rod, while the other end is provided with a second positioning block.

[0018] In this invention, the bone-harvesting drill is divided into a drill bit and an mounting head connected by threads. After the bone is harvested, the drill bit and the mounting head are separated, and then the removed bone column can be pushed out of the drill bit by the bone column ejector pin. This reduces the difficulty of bone column removal, improves operational efficiency, and helps to shorten the operation time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a bone harvesting column kit for dental implantation provided in an embodiment of the present invention;

[0020] Figure 2 A three-dimensional structural diagram of a bone harvesting drill in a bone harvesting column kit for dental implantation provided in an embodiment of this utility model;

[0021] Figure 3 A three-dimensional structural diagram of the bone column pin in a bone column kit for dental implantation provided in an embodiment of this utility model;

[0022] Figure 4 A three-dimensional structural diagram of the handle in a bone harvesting column kit for dental implantation provided in an embodiment of this utility model;

[0023] Figure 5This is a three-dimensional structural diagram of the handle of a bone harvesting column kit for dental implantation provided in an embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the extender in a bone harvesting column kit for dental implantation provided in an embodiment of the present invention;

[0025] Figure 7 This is a cross-sectional view of the extender in a bone harvesting column kit for dental implantation provided in an embodiment of the present invention;

[0026] Figure 8 A three-dimensional structural diagram of a bone harvesting column kit for dental implantation, in which the handle and extender are mounted on the bone harvesting drill, provided for an embodiment of this utility model;

[0027] Figure 9 This is a cross-sectional view of a bone harvesting tool kit for dental implantation provided in an embodiment of the present invention, in which the handle and extender are mounted on the bone harvesting drill.

[0028] Figure label:

[0029] 1. Box body; 2. Box cover; 3. Bone retrieval drill; 301. Mounting head; 30101. Connecting rod; 30102. Mounting groove; 30103. Connecting block; 30104. Limiting plate; 30105. Anti-rotation jamming plate; 302. Drill bit; 30201. Bone retrieval tooth; 30202. Jamming block; 30203. First milling plane; 4. Bone column ejector pin; 401. Ejector rod; 402. First positioning block; 5. Handle; 501. Through hole; 502. Protrusion; 503. Limiting groove; 504. Anti-slip groove; 505. Second milling plane; 6. Extension; 601. Extension rod; 602. Limiting block; 603. Through groove; 604. Second positioning block. Detailed Implementation

[0030] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0032] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0033] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0035] Example:

[0036] Reference Figure 1 , Figure 2 and Figure 3 As shown, a bone harvesting column kit for dental implantation includes a box body 1 and a box cover 2 hinged to the box body 1. A flexible card plate is placed inside the box body 1, and a separate bone harvesting drill 3 and a bone column pin 4 are held on the card plate.

[0037] The bone-harvesting drill 3 includes a drill bit 302 and an mounting head 301. The drill bit 302 has an annular cylindrical structure, with bone-harvesting teeth 30201 on one end face and internal threads on the inner side wall of the other end. The mounting head 301 includes a connecting rod 30101. One end of the connecting rod 30101 has an annular mounting groove 30102, and an anti-rotation jamming notch 30105 is provided along the length of the connecting rod 30101. The other end has an external thread that connects to the drill bit 302. A limiting plate 30104 is provided in the middle of the connecting rod 30101, and the limiting plate 30104 is adjacent to the external thread.

[0038] The bone column ejector pin 4 includes an ejector rod 401. The diameter of the ejector pin is less than or equal to the diameter of the inner hole of the drill bit 302. One end of the ejector rod 401 is provided with a first positioning block 402. This ensures that the ejector rod 401 extends into the drill bit 302, making it easier for the ejector rod 401 to eject the bone column out of the drill bit 302.

[0039] The external thread of the mounting head 301 mates with the internal thread of the drill bit 302 to form the bone retrieval drill 3. The mounting groove 30102 on the connecting rod 30101 is used to connect to the mobile phone. The anti-rotation clip 30105 is placed inside the mobile phone to prevent the mobile phone from being unable to drive the bone retrieval drill 3 to rotate, thus preventing the bone retrieval operation from being impossible. After the bone column is removed by the bone retrieval drill 3, the bone column is still stuck in the drill bit 302. Since the mounting head 301 and the drill bit 302 are threadedly connected, the mounting head 301 is separated from the drill bit 302, and then the push rod 401 is used to push the bone column out of the drill bit 302.

[0040] The limiting plate 30104 restricts the length of the threaded connection between the mounting head 301 and the drill bit 302, preventing the mounting head 301 from entering the drill bit 302 completely, ensuring that the mounting head 301 and the drill bit 302 are properly connected and fixed together, and ensuring that the bone retrieval drill 3 cannot be used normally.

[0041] The drill bit 302 has a threaded end with a locking block 30202 on its outer side wall. The locking block 30202 is a ring-shaped cylindrical structure, and the side wall of the locking block 30202 has a first milling plane 30203.

[0042] When separating the drill bit 302 and the mounting head 301, the locking block 30202 prevents the drill bit 302 from rotating. Since the direction of tightening the drill bit 302 and the mounting head 301 is consistent with the direction of bone retrieval driven by the mobile phone, the threaded connection between the drill bit 302 and the mounting head 301 is relatively tight after bone retrieval. The locking block 30202 makes it easier for the doctor to hold the drill bit 302 tightly, and the first milling plane 30203 is used to clamp the drill bit 302, reducing the difficulty of separating the drill bit 302 and the mounting head 301.

[0043] The end of the connecting rod 30101 connected to the drill bit 302 is provided with a connecting block 30103. The connecting block 30103 is a cylindrical structure, and the side wall of the connecting block 30103 is provided with an external thread that mates with the drill bit 302.

[0044] The connecting rod 30101 is connected to the drill bit 302 via the connecting block 30103. The diameter of the connecting rod 30101 can be set to be smaller, making it easier to install the connecting rod 30101 on the mobile phone. The diameter of the connecting block 30103 matches that of the drill bit 302. The connecting block 30103 is threadedly connected to the drill bit 302, thereby threading the mounting head 301 to the drill bit 302.

[0045] The limiting plate 30104 abuts against the connecting block 30103.

[0046] This ensures a secure connection between the mounting head 301 and the drill bit 302, allowing the mounting head 301 to drive the drill bit 302 to rotate synchronously during bone removal.

[0047] Reference Figure 4 and Figure 5 As shown, it also includes a handle 5, which is a cylindrical structure. The middle part has a through hole 501 that matches the drill bit 302 along the length direction. The outer wall of the handle 5 has an annular protrusion 502. The side wall at one end of the through hole 501 has a limiting groove 503 that matches the locking block 30202.

[0048] The drill bit 302 is inserted into the through hole 501 of the handle 5, and the limiting groove 503 cooperates with the locking block 30202 to prevent the drill bit 302 from rotating inside the handle 5. The protrusion 502 makes it easier for the doctor to grip the handle 5. When the drill bit 302 and the mounting head 301 are separated, it is easier for the doctor to control the drill bit 302. At the same time, it also prevents the drill bit 302 from affecting the doctor's safety by taking the bone tooth 30201, thus improving the safety and convenience of the doctor's operation.

[0049] The surface of the protrusion 502 is provided with anti-slip groove 504 and second milling plane 505.

[0050] The second milling plane 505 and the anti-slip groove 504 further facilitate the doctor's control of the handle 5, preventing the handle 5 from rotating and making it impossible to separate the mounting head 301 and the drill bit 302. In addition, the second milling plane 505 also makes it easier for the doctor to use clamping tools to clamp the handle 5, further reducing the difficulty of separating the mounting head 301 and the drill bit 302.

[0051] Reference Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, it also includes an extender 6, which includes an extension rod 601. The extension rod 601 is a hollow tubular structure, and its inner side wall is provided with a limiting block 602 that cooperates with the anti-rotation jamming 30105 on the connecting rod 30101.

[0052] The extension rod 601 can be fitted onto the connecting rod 30101. The anti-rotation notch 30105 at the end of the connecting rod 30101 abuts against the limiting block 602 on the inner wall of the extension rod 601, which can prevent the connecting rod 30101 from rotating inside the extension rod 601. This allows the extension rod 601 to rotate, thereby driving the connecting rod 30101 to rotate, making it easier for the doctor to separate the installation head 301 from the drill bit 302.

[0053] One end of the extension rod 601 has a constricted structure, and multiple through slots 603 are evenly opened along the length of the extension rod 601 at this end. The other end is provided with a second positioning block 604.

[0054] This makes the side wall of the extension rod 601 elastic, which can clamp the connecting rod 30101, thus ensuring the stability of the installation position of the extension rod 601 on the connecting rod 30101 and preventing the extension rod 601 from easily falling off the connecting rod 30101, thereby facilitating the doctor's operation of the extension rod 601.

[0055] The second positioning block 604 makes it easier for doctors to control the extension rod 601 and also makes it easier for doctors to twist the extension rod 601 to drive the connecting rod 30101 to rotate and separate the mounting bracket and the drill bit 302.

[0056] During bone harvesting, the doctor assembles the bone harvesting drill 302 by connecting the mounting head 301 and the drill bit 302 with a threaded connection via the connecting block 30103. The bone harvesting drill 3 is then mounted on the handpiece via the mounting groove 30102 at the end of the connecting rod 30101. The flip-fit ​​notch at the end of the connecting rod 30101 aligns with the corresponding position on the handpiece, allowing the handpiece to rotate the bone harvesting drill 3. The doctor can then use the handpiece to drive the bone harvesting drill 3 to perform the bone harvesting procedure. After the bone harvesting is complete, the doctor needs to remove the bone column from the bone harvesting drill 3. At this point, the bone harvesting drill 3 is detached from the handpiece, and the extension rod 601 is then fitted onto the connecting rod 30101. The anti-rotation clip 30105 on the connecting rod 30101 abuts against the limiting block 602, and the handle 5 is put on the drill bit 302. The locking block 30202 of the drill bit 302 is locked in the limiting slot 503. The first milling plane 30203 can prevent the drill bit 302 from rotating in the handle 5. Then, the doctor holds the second milling plane 505 on the handle 5 with one hand and the second positioning block 604 with the other hand, and can easily turn the extender 6 and the handle 5 to separate the mounting head 301 and the drill bit 302. Then, the doctor holds the first positioning block 402 and uses the push rod 401 to push out the bone column in the drill bit 302, so that the bone column can be removed and the bone grafting operation can be performed.

[0057] In practical use, an observation port is set on the side wall of the extender 6 at the position corresponding to the limiting block 602, so that doctors can easily check the cooperation between the anti-rotation card 30105 and the limiting block 602.

[0058] The connecting rod 30101 and the connecting block 30103 are integrally formed, the locking block 30202 and the drill bit 302 are integrally formed, the first positioning block 402 and the top rod 401 are integrally formed, and the second positioning block 604 and the extension rod 601 are integrally formed, thereby improving the corresponding structural strength.

[0059] Multiple weight-reducing holes are evenly opened on the second positioning block 604 on the extender 6 to reduce the overall weight of the extender 6.

[0060] The connecting rod 30101 of the mounting head 301 has holes along its length. During bone grafting surgery, the doctor can first insert the bone column pin 4 through the hole on the connecting rod 30101, and then pass it through the hole to reach the drill bit 302. The bone column is then pushed out of the drill bit 302 for bone grafting. After the surgery is completed, the mounting head 301 and the drill bit 302 are separated using the handle 5 and the extender 6. This is more conducive to saving bone grafting surgery time and reducing patient pain.

[0061] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An osteotomies column set for dental implant, characterized by, Includes a box body and a box cover hinged to the box body, wherein a flexible card plate is placed inside the box body, and a separate bone retrieval drill and bone column pin are held on the card plate; The bone-harvesting drill includes a drill bit and an mounting head. The drill bit is a ring-shaped cylindrical structure with bone-harvesting teeth on one end face and internal threads on the inner sidewall of the other end. The mounting head includes a connecting rod. One end of the connecting rod has an annular mounting groove and an anti-rotation jamming groove along the length of the connecting rod. The other end has an external thread that connects to the drill bit. A limiting plate is provided in the middle of the connecting rod, and the limiting plate is adjacent to the external thread. The bone column pin includes a push rod, the diameter of which is less than or equal to the diameter of the drill bit's inner hole, and a first positioning block is provided at one end of the push rod.

2. The bone harvesting post kit according to claim 1, wherein, The drill bit has a threaded end with a locking block on its outer side wall. The locking block is a ring-shaped cylindrical structure, and the side wall of the locking block has a first milling plane.

3. The bone harvesting post kit of claim 1, wherein, The connecting rod is connected to the drill bit at one end and is provided with a connecting block. The connecting block is a cylindrical structure and the side wall of the connecting block is provided with external threads that mate with the drill bit.

4. The bone harvesting post kit according to claim 3, wherein, The limiting plate abuts against the connecting block.

5. The bone harvesting post kit of claim 2, wherein, It also includes a handle, which is a cylindrical structure with a through hole in its middle along the length direction that matches the drill bit. The outer wall of the handle is provided with an annular protrusion, and the side wall at one end of the through hole is provided with a limiting groove that matches the limiting block.

6. The bone harvesting post kit according to claim 5, wherein, The surface of the protrusion is provided with anti-slip grooves and a second milled plane.

7. The bone harvesting post kit of claim 1, wherein, It also includes an extender, which includes an extension rod. The extension rod is a hollow tubular structure, and its inner side wall is provided with a limiting block that cooperates with the anti-rotation clip on the connecting rod.

8. The bone harvesting post kit of claim 7, wherein, One end of the extension rod has a constricted structure, and multiple through slots are evenly distributed along the length of the extension rod at this end. The other end is provided with a second positioning block.

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