Tapping structure with depth limiting assembly

Abstract

The tapping structure comprises a column body, two groups of smooth parts are arranged on the outer wall of the column body, arc-shaped parts are arranged on the side, adjacent to the two groups of smooth parts, of the column body, external threads are formed in the outer walls of the two groups of arc-shaped parts respectively, a depth limiting block is arranged on the outer wall of the column body in a sleeved mode, and the depth limiting block is arranged on the outer wall of the column body in a sleeved mode. Wherein three sets of positioning blind holes are formed in one side of one smooth part, a receding groove is formed in the depth limiting block, the column body, the smooth parts, the arc-shaped parts, the external threads, the depth limiting block, the positioning blind holes, the receding groove and a locking assembly are used in cooperation, the depth limiting block slides in the axial direction of the column body, the position of the depth limiting block can be adjusted, and the depth limiting block can be conveniently taken out. By inserting one end of the locking assembly into the positioning blind holes in different positions, the depth limiting block can be quickly locked and positioned, in actual use, after the column body goes deep into the specified depth, the depth limiting block is tightly attached to the bone cortex, at the moment, the preset depth is achieved, observation is easy, and safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a tapping structure with a depth limiting component. Background Technology

[0002] In spinal surgery and other related medical fields, tapping structures with depth limiting components are widely used as key surgical instruments to provide precise entry paths for screws or other implants. Currently, tapping structures with depth limiting components are typically designed with a graduated body and a sharp head. Doctors determine the insertion depth by visually judging the graduations, thereby ensuring that screws or other implants can be accurately fixed in the bone.

[0003] Since surgery is usually performed under bright operating lights, the intense light often interferes with the doctor's vision, making it difficult to observe the scale clearly. Especially when performing deep surgery, doctors need to maintain a high level of concentration for a long time. The reflection and glare under the operating lights may further increase visual fatigue, thereby affecting the accuracy and safety of the surgery. Therefore, we need to propose a tapping structure with a depth limiting component. Utility Model Content

[0004] The purpose of this invention is to provide a tapping structure with a depth limiting component, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A tapping structure with a depth limiting component includes a column. The outer wall of the column has two sets of smooth portions. An arc-shaped portion is provided on the adjacent side of the two sets of smooth portions. External threads are respectively provided on the outer walls of the two sets of arc-shaped portions. A depth limiting block is fitted on the outer wall of the column. Three sets of positioning blind holes are provided on one side of one set of smooth portions. A clearance groove is provided inside the depth limiting block. A locking component is provided inside the clearance groove for cooperating with the positioning blind holes to lock the depth limiting block.

[0007] Preferably, the locking assembly includes a slide rod that is slidably inserted into the interior of the clearance groove. One end of the slide rod is fixedly connected to a telescopic spring, and one end of the telescopic spring is fixedly connected to the inner wall of one side of the clearance groove.

[0008] Preferably, it also includes a pull rod, one end of which is fixedly connected to one end of a slide rod, the telescopic spring is movably sleeved on the outer wall of the pull rod, and the other end of the pull rod is fixedly connected to a pull block, the outer wall of which is provided with a first anti-slip part.

[0009] Preferably, the outer wall of the depth limiting block is provided with a through hole adapted to the pull rod, and the pull rod is slidably inserted into the inside of the through hole.

[0010] Preferably, the end of the slide bar away from the pull rod is provided with a wedge-shaped part, which is inserted into the interior of the positioning blind hole.

[0011] Preferably, a guide groove is provided on one side of another set of smooth parts, and a guide block adapted to the guide groove is fixedly connected to one side inner wall of the depth limiting block, and the guide block is slidably connected inside the guide groove.

[0012] Preferably, a handle is fixedly connected to the top of the column, a second anti-slip part is provided on the outer wall of the handle, and a spike is provided at the bottom of the column.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a combination of a column, a smooth section, an arc-shaped section, an external thread, a depth-limiting block, a positioning blind hole, a clearance groove, and a locking assembly. The depth-limiting block can be slid along the axial direction of the column to adjust its position. By inserting one end of the locking assembly into the positioning blind hole at different positions, the depth-limiting block can be quickly locked and positioned. In actual use, when the column penetrates to the specified depth, the depth-limiting block fits tightly against the bone cortex, at which point the predetermined depth is reached, making it easy to observe and ensuring higher safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the cylinder and the external thread of this utility model;

[0017] Figure 3 This is a schematic diagram of the depth-limiting block of this utility model;

[0018] Figure 4 This is a schematic diagram of the locking component of this utility model.

[0019] In the diagram: 1. Column; 2. Smooth part; 3. Arc-shaped part; 4. External thread; 5. Depth limiting block; 6. Positioning blind hole; 7. Leaving groove; 8. Locking assembly; 801. Slide rod; 802. Telescopic spring; 803. Pull rod; 804. Pull block; 805. First anti-slip part; 9. Through hole; 10. Wedge-shaped part; 11. Guide groove; 12. Guide block; 13. Handle; 14. Second anti-slip part; 15. Spike part. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a tapping structure with a depth limiting component, including a column 1. Two sets of smooth portions 2 are provided on the outer wall of the column 1. An arc-shaped portion 3 is provided on the adjacent side of the two sets of smooth portions 2, making the cross-section of the column 1 flat. External threads 4 are respectively formed on the outer walls of the two sets of arc-shaped portions 3. A depth limiting block 5 is fitted onto the outer wall of the column 1. Three sets of positioning blind holes 6 are formed on one side of one set of smooth portions 2, respectively located at depths of 2.5mm, 3.5mm, and 4.5mm. A clearance groove 7 is formed inside the depth limiting block 5, and the clearance groove 7 is provided with a groove for... The locking assembly 8, which works in conjunction with the positioning blind holes 6 to clamp the depth limiting block 5, utilizes the combination of the column 1, smooth part 2, arc-shaped part 3, external thread 4, depth limiting block 5, positioning blind holes 6, clearance groove 7, and locking assembly 8. This allows the depth limiting block 5 to slide along the axial direction of the column 1, adjusting its position. By inserting one end of the locking assembly 8 into the positioning blind holes 6 at different positions, the depth limiting block 5 can be quickly locked and positioned. In actual use, when the column 1 penetrates to the designated depth, the depth limiting block 5 fits tightly against the bone cortex, reaching the predetermined depth. This facilitates observation and enhances safety.

[0022] The locking assembly 8 includes a slide rod 801, which is slidably inserted into the interior of the relief groove 7. One end of the slide rod 801 is fixedly connected to a telescopic spring 802, and one end of the telescopic spring 802 is fixedly connected to the inner wall of one side of the relief groove 7. When it is necessary to adjust the position of the depth limiting block 5, it can be slid along the axial direction of the column 1 first. After inserting one end of the slide rod 801 into the interior of the positioning blind hole 6 at the corresponding position, the depth limiting block 5 can be locked and positioned.

[0023] This utility model also includes a pull rod 803, one end of which is fixedly connected to one end of a slide rod 801. A telescopic spring 802 is movably sleeved on the outer wall of the pull rod 803. The other end of the pull rod 803 is fixedly connected to a pull block 804. A first anti-slip part 805 is provided on the outer wall of the pull block 804. By pulling the pull block 804, the pull rod 803 can be moved, thereby moving the slide rod 801. When the slide rod 801 is separated from the column 1, the position of the depth limiting block 5 can be adjusted.

[0024] The outer wall of the depth limiting block 5 has a through hole 9 that matches the pull rod 803. The pull rod 803 is slidably inserted into the through hole 9. When the pull block 804 is pulled, the telescopic spring 802 is compressed. After the depth limiting block 5 is slid to the appropriate position, the wedge-shaped part 10 is aligned with the positioning blind hole 6. At this time, the pull block 804 is released, and the rebound force of the telescopic spring 802 can be used to drive the wedge-shaped part 10 to be firmly inserted into the positioning blind hole 6, thereby achieving the effect of quickly locking and positioning the depth limiting block 5. In actual use, when the column 1 is inserted to the specified depth, the depth limiting block 5 is tightly attached to the bone cortex, and the predetermined depth is reached.

[0025] The end of the slide bar 801 furthest from the pull rod 803 is provided with a wedge-shaped part 10, which is inserted into the interior of the positioning blind hole 6. The slide bar 801 is made of stainless steel. Stainless steel has the characteristics of high strength and wear resistance, and can withstand large mechanical stress and friction. In use, the slide bar 801 needs to be frequently locked and positioned, which requires the slide bar 801 to have sufficient strength and wear resistance. The stainless steel slide bar can meet this requirement, ensuring that it is not easily damaged or deformed during long-term use. Stainless steel has excellent corrosion resistance and can resist the erosion of various chemicals. In the medical surgical environment, the tapping structure with depth limiting component may come into contact with various disinfectants, cleaning agents and other chemicals. The stainless steel slide bar can effectively prevent these chemicals from corroding the slide bar, thereby extending the service life of the tapping structure with depth limiting component.

[0026] It is worth mentioning that a guide groove 11 is provided on one side of another set of smooth parts 2, and a guide block 12 that matches the guide groove 11 is fixedly connected to the inner wall of one side of the depth limiting block 5. The guide block 12 is slidably connected to the inside of the guide groove 11. By setting the guide groove 11 and the guide block 12 to work together, the depth limiting block 5 is limited, making it more stable when moving, which helps to improve the stability of the instrument.

[0027] In addition, a handle 13 is fixedly connected to the top of the column 1. A second anti-slip part 14 is provided on the outer wall of the handle 13, and a spike part 15 is provided at the bottom of the column 1. By rotating the handle 13, the column 1 can be rotated. Through the spike part 15, the column 1 can be driven to tap the bone. By providing the second anti-slip part 14, the friction between the handle 13 and the operator's hand can be increased, preventing the tapping structure with depth limiting components from slipping during the operation. This design can ensure that the operator can stably hold the tapping structure with depth limiting components when performing delicate operations, thereby improving the accuracy and safety of the operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tapping structure with a depth limiting component, comprising a column (1), characterized in that: Two sets of smooth parts (2) are provided on the outer wall of the column (1). An arc-shaped part (3) is provided on the adjacent side of the two sets of smooth parts (2). External threads (4) are respectively provided on the outer wall of the two sets of arc-shaped parts (3). A depth limiting block (5) is fitted on the outer wall of the column (1). Three sets of positioning blind holes (6) are provided on one side of one set of smooth parts (2). A relief groove (7) is provided inside the depth limiting block (5). A locking component (8) is provided inside the relief groove (7) for cooperating with the positioning blind hole (6) to lock the depth limiting block (5).

2. The tapping structure with a depth-limiting component according to claim 1, characterized in that: The locking assembly (8) includes a slide rod (801), which is slidably inserted into the interior of the relief groove (7). One end of the slide rod (801) is fixedly connected to a telescopic spring (802), and one end of the telescopic spring (802) is fixedly connected to the inner wall of one side of the relief groove (7).

3. The tapping structure with a depth-limiting component according to claim 2, characterized in that: It also includes a pull rod (803), one end of which is fixedly connected to one end of a slide rod (801), the telescopic spring (802) is movably sleeved on the outer wall of the pull rod (803), and the other end of the pull rod (803) is fixedly connected to a pull block (804), and the outer wall of the pull block (804) is provided with a first anti-slip part (805).

4. The tapping structure with a depth-limiting component according to claim 3, characterized in that: The outer wall of the depth limiting block (5) is provided with a through hole (9) that is compatible with the pull rod (803), and the pull rod (803) is slidably inserted into the inside of the through hole (9).

5. A tapping structure with a depth-limiting component according to claim 4, characterized in that: The slide bar (801) has a wedge-shaped part (10) at the end away from the pull rod (803), and the wedge-shaped part (10) is inserted into the interior of the positioning blind hole (6).

6. The tapping structure with a depth-limiting component according to claim 1, characterized in that: Another set of smooth parts (2) has a guide groove (11) on one side, and a guide block (12) adapted to the guide groove (11) is fixedly connected to the inner wall of one side of the depth limiting block (5). The guide block (12) is slidably connected to the inside of the guide groove (11).

7. The tapping structure with a depth-limiting component according to claim 1, characterized in that: The top of the column (1) is fixedly connected to a handle (13), and a second anti-slip part (14) is provided on the outer wall of the handle (13). The bottom of the column (1) is provided with a spike part (15).

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