Tapping drill for orthopedic medical internal and external fixing instrument
By designing an orthopedic medical tapping drill with limiting grooves, limiting blocks, rotating discs and springs, the problem that traditional tapping drills are easily transferred through bones and causing damage to the bone marrow when used is achieved, and the effect of protecting the bone marrow during drilling is enhanced, and the installation firmness is enhanced through anti-slip structure.
Patent Information
- Application Number
- CN202420336103.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-23
AI Technical Summary
Traditional medical tapping drills are prone to spin through bones when used, causing damage to their internal bone marrow.
A tapping drill for orthopedic medical internal and external fixing equipment is designed, including a tapping drill main body and a connecting rod. A movable sleeve and an anti-slip structure are arranged on the outside, a connecting rod and an anti-slip structure are arranged on the top, and a limiting ring and a protective structure are arranged on the bottom. Through the coordination of the limit groove and the limit block, the tapping drill main body is driven to rotate; through the coordination of the first rotating disc, the spring and the second rotating disc, the spring pushes the tapping drill main body forward when drilling through the bone, causing the limit block to fall off, and the connecting rod idles to prevent insertion of the bone marrow.
It effectively prevents the drilling of the bone from being completely inserted into the bone due to the palm squeezing of the electric drill rig, causing damage to the bone marrow, improving the protection effect, and enhancing the firmness of the installation through the anti-slip structure.
Smart Images
Figure CN222549276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical treatment, in particular to a tapping drill used for orthopedic medical internal and external fixation equipment. Background Art
[0002] The tapping drill used in orthopedic medical treatment is a tool specially designed for fixing bones. It combines the functions of drilling and tapping to ensure that fixation devices such as screws, steel plates, etc. can be tightly and firmly combined with bones. Main features: High precision: The design of the tapping drill enables it to drill holes in bones with extremely high precision, ensuring that the position and size of the holes are accurate. Multifunctional: This tapping drill can not only drill holes, but also form threads that match the fixation devices while drilling, thereby improving the fixation effect. Durability: Due to the very high requirements for tools in orthopedic surgery, tapping drills are usually made of high-quality materials to ensure that they can maintain stable performance during multiple uses. However, traditional medical tapping drills still have some problems when used.
[0003] Traditional medical tapping drills are integrated and need to be installed on an electric drill before they can be used. This means that when in use, the electric drill needs to be pressed hard to indirectly push the tapping drill against the bone. This can easily cause the bone to be pierced at the moment of drilling. Due to the inertia of pressing, the tapping drill is inserted into the inside of the bone and causes damage to the bone marrow inside. Therefore, a tapping drill used in orthopedic medical internal and external fixation devices is needed to solve the above problem. Utility Model Content
[0004] The utility model aims to provide a tapping drill used for orthopedic medical internal and external fixation instruments, so as to solve the defect that the existing orthopedic tapping drills are easy to penetrate bones and cause damage to the internal bone marrow when in use.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a tapping drill used in orthopedic medical internal and external fixation instruments, comprising a tapping drill body and a connecting rod; a movable sleeve is arranged on the outer side of the tapping drill body, and a connecting rod is arranged on the top of the tapping drill body; a limiting ring is arranged at the bottom end of the outer side of the tapping drill body and the connecting rod, an anti-slip structure is arranged on the outer side of the top end of the connecting rod, and a protective structure is arranged at the connection between the tapping drill body and the connecting rod; the protective structure comprises a first rotating disk, a spring, a second rotating disk, a movable groove, a limiting groove and a limiting block, and the first rotating disk is arranged inside the bottom end of the connecting rod.
[0006] Preferably, a spring is provided at the bottom end of the first rotating disk, the movable groove is opened inside the top of the tapping drill body, a second rotating disk is provided inside the movable groove, the top of the second rotating disk is connected to the bottom end of the spring, the limit groove is opened inside the top of the tapping drill body, and the limit block is provided at the bottom end of the connecting rod.
[0007] Preferably, the inner diameter of the movable groove is larger than the outer diameter of the second rotating disk, and the second rotating disk and the movable groove are movably connected.
[0008] Preferably, the limiting block is inserted into the limiting groove, and an insertion structure is formed between the limiting block and the limiting groove.
[0009] Preferably, a plurality of the limit blocks are provided, and the limit blocks are distributed in a ring shape at the bottom end of the connecting rod.
[0010] Preferably, the anti-slip structure includes an anti-slip sleeve, a first anti-slip strip and a second anti-slip strip, the anti-slip sleeve is arranged on the outer side of the top end of the connecting rod, the first anti-slip strip is arranged on the outer side of the anti-slip sleeve, and the second anti-slip strip is arranged on one side of the first anti-slip strip.
[0011] Preferably, a plurality of the first anti-slip strips and the second anti-slip strips are provided, and the first anti-slip strips intersect with the second anti-slip strips.
[0012] The utility model provides a tapping drill for orthopedic medical internal and external fixation equipment, which has the advantages of:
[0013] The limit groove and the limit block are used in coordination, and the tap drill body can be driven to rotate during drilling. Moreover, the first rotating disk, the spring, and the second rotating disk can be used to push the tap drill body forward to move forward a certain position at the moment when the tap drill body drills through the bone, so that the limit block falls off from the inside of the limit groove, and the connecting rod is idle, so that the bone marrow is not damaged when the tap drill body is completely inserted into the bone due to the palm squeezing the electric drill machine at the moment when the tap drill body drills through the bone, thereby improving the protection effect.
[0014] The anti-slip sleeve, the first anti-slip strip and the second anti-slip strip are used in combination to increase the friction force on the outer side of the top end of the connecting rod, so that the connecting rod can be installed more firmly when it is installed on the electric drill and is not likely to fall off during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the top cross-sectional structure of the utility model;
[0017] Figure 3It is a schematic diagram of a partial cross-sectional structure of the utility model in a front view;
[0018] Figure 4 It is a schematic diagram of a partial structure of the utility model in a front view;
[0019] Figure 5 For the utility model Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.
[0020] In the figure: 1. tapping drill body; 2. movable sleeve; 3. connecting rod; 4. anti-skid structure; 401. anti-skid sleeve; 402. first anti-skid strip; 403. second anti-skid strip; 5. protection structure; 501. first rotating disk; 502. spring; 503. second rotating disk; 504. movable groove; 505. limit groove; 506. limit block; 6. limit ring. DETAILED DESCRIPTION
[0021] 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.
[0022] The utility model provides a tapping drill for orthopedic medical internal and external fixation devices, such as Figure 1-5 As shown, a tapping drill used for an orthopedic medical internal and external fixation device comprises a tapping drill body 1 and a connecting rod 3; a movable sleeve 2 is arranged on the outside of the tapping drill body 1, and a connecting rod 3 is arranged on the top of the tapping drill body 1; a limit ring 6 is arranged at the bottom end of the outside of the tapping drill body 1 and the connecting rod 3, an anti-slip structure 4 is arranged on the outside of the top of the connecting rod 3, and a protective structure 5 is arranged at the connection between the tapping drill body 1 and the connecting rod 3.
[0023] Specifically, in the present embodiment: when the tapping drill body 1 is used, the anti-slip structure 4 is provided to make it more secure during installation, and the protective structure 5 can be provided so that at the moment when the tapping drill body 1 drills through the bone, the spring 502 will push the tapping drill body 1 to move forward a certain position, so that the limit block 506 falls off from the inside of the limit groove 505, and the connecting rod 3 is allowed to idle, thereby preventing the tapping drill body 1 from being completely inserted into the bone and causing damage to the bone marrow due to the palm squeezing the electric drill to drive the tapping drill body 1 to be completely inserted into the bone at the moment when the tapping drill body 1 penetrates the bone.
[0024] In a further preferred embodiment of the present invention, Figure 1-5As shown: the anti-slip structure 4 includes an anti-slip cover 401, a first anti-slip strip 402 and a second anti-slip strip 403. The anti-slip cover 401 is arranged on the outer side of the top end of the connecting rod 3, the outer side of the anti-slip cover 401 is provided with a first anti-slip strip 402, one side of the first anti-slip strip 402 is provided with a second anti-slip strip 403, a plurality of first anti-slip strips 402 and second anti-slip strips 403 are provided, and the first anti-slip strip 402 intersects with the second anti-slip strip 403.
[0025] Specifically, in this embodiment, when in use, the connecting rod 3 is installed with the electric drill. During installation, the friction force on the top surface of the connecting rod 3 can be increased by rotating between the first anti-slip strip 402 and the second anti-slip strip 403, making it more secure during installation.
[0026] In a further preferred embodiment of the present invention, Figure 1-5 As shown: the protection structure 5 includes a first rotating disk 501, a spring 502, a second rotating disk 503, a movable groove 504, a limiting groove 505 and a limiting block 506, the first rotating disk 501 is arranged inside the bottom end of the connecting rod 3, the bottom end of the first rotating disk 501 is provided with a spring 502, the movable groove 504 is opened inside the top end of the tapping drill body 1, the movable groove 504 is provided with a second rotating disk 503, the top end of the second rotating disk 503 is connected to the bottom end of the spring 502, The limiting groove 505 is opened inside the top of the tapping drill body 1, the limiting block 506 is arranged at the bottom end of the connecting rod 3, the inner diameter of the movable groove 504 is larger than the outer diameter of the second rotating disk 503, and the second rotating disk 503 and the movable groove 504 form a movable connection. The limiting block 506 is inserted into the limiting groove 505, and an insertion structure is formed between the limiting block 506 and the limiting groove 505. There are a plurality of limiting blocks 506, and the plurality of limiting blocks 506 are distributed in a ring shape at the bottom end of the connecting rod 3.
[0027] Specifically, in this embodiment, when drilling holes in bones, the bottom end of the tapping drill body 1 is aligned with the bone and squeezed, so that the limit block 506 is inserted into the inside of the limit groove 505. After the insertion is completed, the electric drill is started to drive the tapping drill body 1 to rotate. At the moment when the rotating tapping drill body 1 penetrates the bone, the spring 502 will push the tapping drill body 1 a certain distance according to its own elasticity, so that the limit block 506 falls off from the inside of the limit groove 505, causing the connecting rod 3 to idle. The tapping drill body 1 will not be inserted into the bone due to the inertia of squeezing when penetrating, causing damage to the bone marrow, thereby completing the protection work.
[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A tapping drill for use in orthopedic medical internal and external fixation devices, comprising a tapping drill body (1) and a connecting rod (3); Features: A movable sleeve (2) is arranged on the outer side of the tapping drill body (1), and a connecting rod (3) is arranged on the top of the tapping drill body (1); A limit ring (6) is provided at the bottom end of the outer side of the tapping drill body (1) and the connecting rod (3), an anti-slip structure (4) is provided at the outer side of the top end of the connecting rod (3), and a protective structure (5) is provided at the connection between the tapping drill body (1) and the connecting rod (3); The protective structure (5) comprises a first rotating disk (501), a spring (502), a second rotating disk (503), a movable groove (504), a limiting groove (505) and a limiting block (506); the first rotating disk (501) is arranged inside the bottom end of the connecting rod (3).
2. A tapping drill for orthopedic medical internal and external fixation device according to claim 1, characterized in that: A spring (502) is arranged at the bottom end of the first rotating disk (501), the movable groove (504) is arranged inside the top end of the tapping drill body (1), a second rotating disk (503) is arranged inside the movable groove (504), the top end of the second rotating disk (503) is connected to the bottom end of the spring (502), the limiting groove (505) is arranged inside the top end of the tapping drill body (1), and the limiting block (506) is arranged at the bottom end of the connecting rod (3).
3. A tapping drill for orthopedic medical internal and external fixation device according to claim 2, characterized in that: The inner diameter of the movable groove (504) is greater than the outer diameter of the second rotating disk (503), and the second rotating disk (503) and the movable groove (504) are movably connected.
4. The tapping drill for orthopedic medical internal and external fixation device according to claim 1, characterized in that: The limiting block (506) is inserted into the limiting groove (505), and an insertion structure is formed between the limiting block (506) and the limiting groove (505).
5. The tapping drill for orthopedic medical internal and external fixation device according to claim 1, characterized in that: A plurality of the limit blocks (506) are provided, and the plurality of limit blocks (506) are distributed in a ring shape at the bottom end of the connecting rod (3).
6. A tapping drill for orthopedic medical internal and external fixation device according to claim 1, characterized in that: The anti-slip structure (4) comprises an anti-slip cover (401), a first anti-slip strip (402) and a second anti-slip strip (403); the anti-slip cover (401) is arranged on the outer side of the top end of the connecting rod (3); the first anti-slip strip (402) is arranged on the outer side of the anti-slip cover (401); and the second anti-slip strip (403) is arranged on one side of the first anti-slip strip (402).
7. A tapping drill for orthopedic medical internal and external fixation device according to claim 6, characterized in that: A plurality of the first anti-slip strips (402) and the second anti-slip strips (403) are provided, and the first anti-slip strips (402) and the second anti-slip strips (403) intersect with each other.