Medical orthopedic quick drill bit

Abstract

The application relates to a medical orthopedic quick drill bit, which comprises a drill bit body composed of a drill bit part and a drill rod part, wherein the drill bit part is provided with circularly arranged cutting edges for bone positioning and hole forming, and the drill rod part is designed as a light rod; a connecting piece is connected with the drill bit body at one end and fixed with a driving piece at the other end, and the two are quickly separated through a split device containing a clamping piece and a disengaging piece, so that safe disconnection is ensured when the pressure of the medullary cavity or cancellous bone is abnormal. The application has the technical effects of improving the operation efficiency, enhancing the safety and reducing accidental injuries.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a medical orthopedic quick drill bit. Background Technology

[0002] Orthopedics, also known as reconstructive surgery, is a medical specialty that studies the anatomy, physiology, and pathology of the musculoskeletal system. It utilizes medication, surgery, and physical therapy to maintain and improve the normal shape and function of this system, as well as to treat injuries and diseases affecting it. When bones are injured by external forces, resulting in cracks or fractures that impair movement or normal physiological activity, it is necessary to create openings in the affected bone to fix the bones or joints.

[0003] Orthopedic drill bits are used for orthopedic openings or drilling positioning. Currently, most drill bits are twist drills, which are prone to vibration during drilling, leading to holes that are too large. Traditional orthopedic drill bits have a rigid, one-piece structure, and the drilling depth and whether it reaches the medullary cavity rely entirely on the surgeon's feel or experience. This easily results in drilling too deep or too shallow. Utility Model Content

[0004] To address the aforementioned issues, this application provides a medical orthopedic quick drill bit.

[0005] The medical orthopedic quick drill bit provided in this application adopts the following technical solution:

[0006] A medical orthopedic quick drill bit, comprising:

[0007] The drill bit body includes a drill head and a drill rod. The drill head is provided with a cutting edge and is used to locate and drill into the bone. The drill rod is connected to the drill head and is configured as a smooth rod to locate the drill hole.

[0008] A connector is provided, one end of which is connected to the drill bit body and the other end is fixedly connected to the drive component. The drill bit body also includes a connecting part located at the other end of the drill rod. A separation device is provided between the connecting part and the connector. When there is a change in the pressure of the medullary cavity or cancellous bone, the connecting part and the connector are separated by the separation device.

[0009] By adopting the above technical solution, the drill head is designed with a cutting edge, which can accurately locate and drill into the bone. The drill rod is a smooth rod, further ensuring the accuracy of drilling and preventing the hole from becoming larger due to vibration during use. The separate device between the connecting part and the connector can promptly separate the connecting part and the connector when the pressure in the medullary cavity or cancellous bone changes, enhancing the safety of the surgical procedure and effectively avoiding accidents caused by changes in internal bone pressure.

[0010] Preferably, the length of the drill bit is less than the length of the drill rod.

[0011] By adopting the above technical solution, the length of the drill bit is shorter than the length of the drill rod, and it is connected to the drive unit through a connector. This design makes the drill bit more flexible and facilitates precise operation by doctors according to different surgical needs.

[0012] Preferably, the drill bit cutting edge is arranged in a circle.

[0013] By adopting the above technical solution, the single-circle cutting edge design makes the drilling process more efficient while maintaining precise opening to the bone, which helps to expedite the surgery. Compared to multi-circle cutting edges, a single-circle cutting edge reduces damage to surrounding tissues during drilling, which is beneficial for postoperative recovery. The simplified structure not only reduces manufacturing costs but also reduces wear and tear during maintenance and use. Setting the drill head cutting edge in a single circle makes the structure more stable and easier for doctors to operate and control.

[0014] Preferably, the split device includes a snap-fit ​​component and a release component. The snap-fit ​​component includes a snap-fit ​​groove formed on the connector and a snap-fit ​​connector disposed at the end of the connector. The snap-fit ​​groove is a polygonal groove, and the snap-fit ​​connector is configured as a polygonal rod corresponding to the snap-fit ​​groove. The release component pushes the snap-fit ​​connector away from the snap-fit ​​groove, thereby separating the drill bit body from the connector.

[0015] By adopting the above technical solution, the polygonal design of the locking groove and locking connector ensures a stable connection between the connector and the connecting part, preventing accidental detachment or loosening of the drill bit during operation. The drill bit can quickly separate when encountering abnormal pressure changes, greatly reducing surgical risks and protecting patient safety. The polygonal matching design of the locking groove and locking connector not only ensures the stability of the connection but also makes the assembly and disassembly of the drill bit faster and more convenient, improving the efficiency of surgical preparation and subsequent cleaning. When the pressure in the medullary cavity or cancellous bone changes, the release mechanism can quickly detach the drill bit body from the connector, ensuring the safety of the surgical procedure.

[0016] Preferably, the snap-fit ​​connector and the snap-fit ​​groove are fitted with a clearance.

[0017] By adopting the above technical solution, the clearance fit allows the connector to be inserted into the connector slot relatively easily, and the connector can be detached from the connector slot more easily under the action of the release element, thus ensuring the safety of the surgical procedure.

[0018] Preferably, the detachment member includes a first baffle disposed on the connecting portion near the snap-fit ​​connector, a spring having one end abutting against the first baffle and the other end abutting against the connecting member, a first sliding groove formed on the connecting member for the spring to slide, and a second sliding groove formed on the connecting member and communicating with the first sliding groove, the second sliding groove for the first baffle to slide.

[0019] By adopting the above technical solution, the spring's abutting action enables a rapid and accurate response when disengagement is required. The design of the first baffle and the second sliding groove not only provides a stable operating environment for the spring but also ensures that the disengagement component can work normally under extreme conditions.

[0020] Preferably, the detachment component further includes a second baffle disposed at one end of the connector near the drill bit body, the second baffle blocking the first baffle.

[0021] By adopting the above technical solution, the second baffle acts as an additional safety guarantee, effectively preventing the first baffle from accidentally falling off due to external force or mechanical vibration, thus reducing surgical risks.

[0022] Preferably, the second baffle is detachably connected to the connector.

[0023] By adopting the above technical solution, the detachable connection allows the second baffle to be easily removed when damaged or needing replacement, simplifying the maintenance process. The detachable connection between the second baffle and the connector facilitates drill bit replacement when different diameter drill bits are required.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The drill head is designed with a cutting edge and a smooth drill rod, which can accurately locate and drill into the bone, effectively avoiding the problem of the hole being too large due to hand-held device shaking;

[0026] 2. A separation device is provided between the connecting part and the connecting piece, which can be used to quickly separate when the pressure in the medullary cavity or cancellous bone changes, thereby enhancing surgical safety and reducing the risks caused by changes in internal pressure;

[0027] 3. The design of the drill head being shorter than the drill rod length makes the drill more flexible, allowing doctors to perform precise operations according to actual needs, thereby improving surgical efficiency and reliability. Attached Figure Description

[0028] Figure 1 This is an overall diagram of a medical orthopedic quick drill bit.

[0029] Figure 2 This is a cross-sectional view of a medical orthopedic quick drill bit.

[0030] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0031] Figure 4 This is an exploded view of a medical orthopedic quick drill bit.

[0032] Explanation of reference numerals in the attached drawings: 1. Drill bit body; 11. Drill head; 111. Cutting edge; 12. Drill rod section; 13. Connecting part; 2. Connecting piece; 3. Separating device; 31. Clamping piece; 311. Clamping groove; 312. Clamping connector; 32. Releasing piece; 321. First baffle; 322. Spring; 323. First sliding groove; 324. Second sliding groove; 325. Second baffle. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a medical orthopedic quick-drill bit. (See also...) Figure 1 , Figure 2 The medical orthopedic quick drill bit includes a drill bit body 1 and a connector 2. The drill bit body 1 consists of a drill head 11 and a drill rod 12. The drill head 11 is equipped with a cutting edge 111 for bone positioning and drilling. The drill rod 12 is a smooth rod that serves as a drilling guide. One end of the connector 2 is connected to the drill bit body 1, and the other end is fixedly connected to the drive component. A separation device 3 is provided between the two, which can automatically separate when the pressure in the medullary cavity or cancellous bone changes, thereby ensuring the safety and accuracy of the surgery.

[0035] Reference Figure 4 Specifically, the drill head 11 includes a cutting edge 111. The cutting edge 111 can be in the form of a complete spiral. Made of cemented carbide, the cutting edge 111 has high wear resistance and sharpness, effectively reducing damage to surrounding tissues. The cutting edge 111 is integrally formed with the drill body 1. The outer diameter of the cutting edge 111 is the same as the diameter of the drill rod 12, and can be adjusted according to actual needs, generally set within the range of 2 mm to 5 mm to accommodate different types of bone surgeries.

[0036] In another embodiment, the drill bit 11 cutting edge 111 can also be configured as a serrated or even wavy curve pattern, so that the user can select the best tool type according to the characteristics of the current case.

[0037] Reference Figure 4The drill bit body 1 also includes a connecting part 13, which is connected to the connecting member 2. The connecting member 2 is fixedly connected to the driving member by a pin, which drives the drill bit body 1 to rotate and perform drilling.

[0038] Reference Figure 2 , Figure 3 A separation device 3 is provided between the connector 2 and the connecting part 13. The separation device 3 mainly includes two parts: a snap-fit ​​part 31 and a release part 32. When the pressure in the medullary cavity or cancellous bone changes, the device can quickly separate the parts, enhancing surgical safety and reducing the risks caused by changes in internal pressure.

[0039] Reference Figure 3 Specifically, the snap-fit ​​component 31 includes a polygonal snap-fit ​​groove 311 formed on the connector 2 and a polygonal snap-fit ​​connector 312 disposed at the end of the connecting portion 13. The snap-fit ​​groove 311 and the snap-fit ​​connector 312 are matched in shape, commonly polygonal such as square or hexagonal, ensuring that the two always rotate synchronously during operation while also facilitating disassembly and assembly. To facilitate separation, a certain gap is left between the snap-fit ​​connector 312 and the snap-fit ​​groove 311, allowing slight floating but still maintaining a tight fit.

[0040] The detachment component 32 consists of a first baffle 321, a spring 322, a first sliding groove 323, a second sliding groove 324, and a second baffle 325. The first baffle 321 is located on the side of the connecting part 13 near the snap-fit ​​connector 312 and can move within a designated area under the thrust of the spring 322. The two ends of the spring 322 abut against the first baffle 321 and the inner wall of the connecting part 2, respectively, and are always in a compressed state storing energy. The first sliding groove 323 and the second sliding groove 324 sequentially penetrate the interior of the connecting part 2, providing channels for the extension and retraction of the spring 322 and the translation of the first baffle 321, respectively. The second baffle 325 is located at the foremost end, preventing the first baffle 321 from detaching, and can be detached and installed using screws or other means for easy daily maintenance and repair.

[0041] The implementation principle of a medical orthopedic quick drill bit according to this application embodiment is as follows: The drill head 11 is designed with a cutting edge 111, which can accurately locate and drill into the bone. The drill rod 12 serves as a smooth rod, further ensuring the accuracy of drilling and preventing the hole from becoming larger due to vibration during use. The separation device 3 provided between the connecting part 13 and the connecting piece 2 can promptly separate the connecting part 13 from the connecting piece 2 when the pressure in the medullary cavity or cancellous bone changes, enhancing the safety of the surgical procedure and effectively avoiding accidents caused by changes in internal bone pressure.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A medical orthopedic quick-drill bit, characterized in that: include: The drill bit body (1) includes a drill head (11) and a drill rod (12). The drill head (11) is provided with a cutting edge (111) and is used to locate and drill into the bone. The drill rod (12) is connected to the drill head (11) and is set as a smooth rod to locate the drill hole. The connector (2) is connected to the drill body (1) at one end and fixedly connected to the drive component at the other end. The drill body (1) also includes a connecting part (13) located at the other end of the drill rod (12). A separation device (3) is provided between the connecting part (13) and the connector (2). When the pressure in the medullary cavity or cancellous bone changes, the connecting part (13) is separated from the connector (2) by the separation device (3).

2. The medical orthopedic quick-drill bit according to claim 1, characterized in that: The length of the drill head (11) is less than the length of the drill rod (12).

3. The medical orthopedic quick-drill bit according to claim 1, characterized in that: The cutting edge (111) of the drill bit (11) is arranged in a circle.

4. The medical orthopedic quick-drill bit according to claim 1, characterized in that: The split device (3) includes a snap-fit ​​component (31) and a release component (32). The snap-fit ​​component (31) includes a snap-fit ​​groove (311) formed on the connector (2) and a snap-fit ​​connector (312) provided at the end of the connecting part (13). The snap-fit ​​groove (311) is a polygonal groove, and the snap-fit ​​connector (312) is set as a polygonal rod corresponding to the snap-fit ​​groove (311). The release component (32) pushes the snap-fit ​​connector (312) away from the snap-fit ​​groove (311) and separates the drill bit body (1) from the connector (2).

5. The medical orthopedic quick-drill bit according to claim 4, characterized in that: The snap-fit ​​connector (312) and the snap-fit ​​groove (311) are fitted with a clearance.

6. The medical orthopedic quick-drill bit according to claim 4, characterized in that: The release member (32) includes a first baffle (321) disposed on the connecting part (13) near the snap connector (312), a spring (322) with one end abutting against the first baffle (321) and the other end abutting against the connecting member (2), a first sliding groove (323) formed on the connecting member (2) for the spring (322) to slide, and a second sliding groove (324) formed on the connecting member (2) and communicating with the first sliding groove (323), the second sliding groove (324) for the first baffle (321) to slide.

7. The medical orthopedic quick-drill bit according to claim 6, characterized in that: The detachment member (32) further includes a second baffle (325) disposed at one end of the connector (2) near the drill bit body (1), the second baffle (325) blocking the first baffle (321).

8. The medical orthopedic quick-drill bit according to claim 7, characterized in that: The second baffle (325) is detachably connected to the connector (2).

Images