Accurate positioning orthopedic drilling guider

Abstract

The utility model relates to the technical field of medical instruments, and discloses a precise positioning orthopedic drilling guider which comprises a fixing plate, the rear surface of the fixing plate is fixedly connected with an attaching plate, the upper surface of the fixing plate is provided with a rotating groove, and the inner wall of the rotating groove is fixedly connected with a rotating shaft. The angle of the limiting sleeve can be rapidly adjusted by arranging the adjusting assembly, during drilling, the accuracy of the drilling angle can be improved by limiting the drill bit through the limiting sleeve, a large amount of time is saved compared with the cumbersome process that a doctor manually uses tools such as a protractor to repeatedly compare and adjust the angle in a traditional operation, and the operation efficiency is improved. A doctor can complete preparation work before drilling more quickly, the operation process is more compact and efficient, especially when a plurality of drilling requirements or complex orthopedic operations are processed, the operation duration can be remarkably shortened, and the anesthesia time of a patient and the risks of operation infection and the like are reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically to a precision positioning orthopedic drilling guide. Background Technology

[0002] Orthopedic drilling guides are tools used to assist drilling operations during orthopedic surgery. They are designed to help doctors drill holes in the bone more accurately to meet the needs of the surgery, such as determining the precise drilling position and direction for implanting internal fixation devices such as screws in fracture internal fixation surgery.

[0003] In traditional orthopedic surgery, achieving precise drilling angles typically involves first using a simple angle measuring tool such as a protractor against the bone surface. The angle is then fine-tuned and calibrated against the pre-planned angle and the approximate direction determined by anatomical landmarks to ensure accuracy. This allows the drill bit to enter the bone along the predetermined trajectory. Next, a suitable drill bit is selected, mounted on an electric or manual drill, aligned with the starting point, and the drill is slowly started at the predetermined angle. However, traditional drilling methods require multiple measurements and adjustments before drilling at a specific angle. Even after calibrating the angle, it is difficult to maintain absolute stability when holding the drill bit and drilling at the preset angle. The actual drilling angle of the drill bit can easily deviate from the preset angle during drilling. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a precision positioning orthopedic drilling guide to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a precision positioning orthopedic drilling guide, including a fixing plate, a fitting plate fixedly connected to the rear surface of the fixing plate, a rotating groove formed on the upper surface of the fixing plate, a rotating shaft fixedly connected to the inner wall of the rotating groove, a limiting sleeve rotatably connected to the outer surface of the rotating shaft, a groove formed on the surface of the limiting sleeve, a connecting block fixedly connected to the center of the front surface of the fixing plate, a handle integrally fixedly connected to the end of the connecting block away from the adjustment component, a sliding groove formed through the surface of the connecting block, a scale line set above the sliding groove on the surface of the connecting block, a slot formed on the surface of the connecting block, and an adjustment component installed inside the connecting block;

[0006] The adjusting assembly includes a first bearing fixedly installed inside the connecting block. A rotating rod is fixedly connected to the inner ring of the first bearing. A driving bevel gear is fixedly connected to the end of the rotating rod. A driven bevel gear is meshed with the surface of the driving bevel gear. A second bearing is fixedly installed inside the connecting block. A threaded rod is fixedly connected to the inner ring of the second bearing. A slider is slidably connected inside the sliding groove. A protrusion is fixedly connected to the top and bottom of the slider. A limit rod is movably inserted into the interior of one of the protrusions. A threaded hole matching the threaded rod is opened inside the other protrusion. An indicator block is fixedly connected to the side of the slider. A connecting post is fixedly connected to the center of the slider surface away from the indicator block. A limit plate is fixedly connected to the end face of the connecting post away from the slider.

[0007] Furthermore, steel balls are equidistantly mounted inside the limiting plate, and the surface of the limiting plate extends to the outside of the limiting plate.

[0008] Furthermore, the end of the connecting post away from the slider extends into the interior of the groove, and the surface of the steel ball rolls against the inner wall of the groove.

[0009] Furthermore, the indicator block is conical, and the end of the indicator block away from the slider extends to the outside of the connecting block, with the outer surface of the indicator block slidably connected to the inside of the groove.

[0010] Furthermore, both ends of the limiting rod are fixedly connected to the inner wall of the slide groove, the threaded rod is rotatably connected inside the slide groove, and the outer surface of the threaded rod is threadedly engaged with the center of the protrusion at the bottom of the slider.

[0011] Furthermore, the top of the rotating rod extends to the upper surface of the connecting block, and both the driving bevel gear and the driven bevel gear are rotatably connected inside the connecting block. The threaded rod is fixedly connected to the center of the surface of the driven bevel gear near the end face of the driving bevel gear.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, by setting an adjustment component, can quickly adjust the angle of the limiting sleeve. During drilling, the limiting sleeve limits the drill bit, which can improve the accuracy of the drilling angle. Compared with the tedious process of doctors manually comparing and adjusting the angle repeatedly using tools such as protractors in traditional surgery, it saves a lot of time. Doctors can complete the pre-drilling preparation work more quickly, making the surgical process more compact and efficient. Especially when dealing with multiple drilling needs or more complex orthopedic surgeries, it can significantly shorten the operation time and reduce the patient's anesthesia time and the risk of surgical infection.

[0014] 2. By incorporating steel balls, this utility model reduces the friction between the limiting plate and the inner wall of the groove when the limiting sleeve rotates, making the rotation of the rotating rod easier and extending the service life of the limiting sleeve and the limiting plate, thus enhancing its practicality. 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 adjustment component in this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the slider and the indicator block in this utility model;

[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows: 1. Fixing plate; 2. Adhesive plate; 3. Rotating groove; 4. Rotating shaft; 5. Limiting sleeve; 6. Groove; 7. Connecting block; 8. Handle; 9. Slide groove; 10. Scale line; 11. Slot; 12. Adjusting component; 121. First bearing; 122. Rotating rod; 123. Driving bevel gear; 124. Driven bevel gear; 125. Threaded rod; 126. Second bearing; 127. Slider; 128. Protrusion; 129. Indicator block; 1210. Limiting rod; 1211. Connecting column; 1212. Limiting plate; 12121. Steel ball. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0022] Specifically, a precision positioning orthopedic drilling guide includes a fixing plate 1, a fitting plate 2 fixedly connected to the rear surface of the fixing plate 1, a rotating groove 3 formed on the upper surface of the fixing plate 1, a rotating shaft 4 fixedly connected to the inner wall of the rotating groove 3, a limiting sleeve 5 rotatably connected to the outer surface of the rotating shaft 4, a groove 6 formed on the surface of the limiting sleeve 5, a connecting block 7 fixedly connected to the center of the front surface of the fixing plate 1, a handle 8 integrally fixedly connected to the end of the connecting block 7 away from the adjusting component 12, a sliding groove 9 formed through the surface of the connecting block 7, a scale line 10 set above the sliding groove 9 on the surface of the connecting block 7, a slot 11 formed on the surface of the connecting block 7, and an adjusting component 12 installed inside the connecting block 7.

[0023] The adjusting assembly 12 includes a first bearing 121 fixedly installed inside the connecting block 7. A rotating rod 122 is fixedly connected to the inner ring of the first bearing 121. A driving bevel gear 123 is fixedly connected to the end of the rotating rod 122. A driven bevel gear 124 is meshed with the surface of the driving bevel gear 123. A second bearing 126 is fixedly installed inside the connecting block 7. A threaded rod 125 is fixedly connected to the inner ring of the second bearing 126. A slider 127 is slidably connected inside the slide groove 9. A protrusion 128 is fixedly connected to the top and bottom of the slider 127. A limit rod 1210 is movably inserted into the interior of one protrusion 128. A threaded hole matching the threaded rod 125 is opened inside the other protrusion 128. An indicator block 129 is fixedly connected to the side of the slider 127. A connecting post 1211 is fixedly connected to the center of the surface of the slider 127 away from the indicator block 129. A limit plate 1212 is fixedly connected to the end face of the connecting post 1211 away from the slider 127.

[0024] In this implementation scheme, the angle of the limiting sleeve 5 can be quickly adjusted by setting the adjustment component 12. During drilling, the limiting sleeve 5 limits the drill bit, which can improve the accuracy of the drilling angle. This saves a lot of time compared to the tedious process of doctors manually comparing and adjusting the angle repeatedly using tools such as protractors in traditional surgery. Doctors can complete the pre-drilling preparation work more quickly, making the surgical procedure more compact and efficient. Especially when dealing with multiple drilling needs or more complex orthopedic surgeries, it can significantly shorten the operation time and reduce the patient's anesthesia time and the risk of surgical infection.

[0025] Specifically, steel balls 12121 are equidistantly mounted inside the limiting plate 1212, the surface of the limiting plate 1212 extends to the outside of the limiting plate 1212, the end of the connecting post 1211 away from the slider 127 extends into the inside of the groove 6, and the surface of the steel balls 12121 is rolled and connected to the inner wall of the groove 6.

[0026] In this embodiment, by setting steel balls 12121, when the limiting sleeve 5 rotates, the friction between the limiting plate 1212 and the inner wall of the groove 6 can be reduced, making the rotation of the rotating rod 122 easier. At the same time, it also extends the service life of the limiting sleeve 5 and the limiting plate 1212, and enhances practicality.

[0027] Specifically, the indicator block 129 is conical, and the end of the indicator block 129 away from the slider 127 extends to the outside of the connecting block 7, and the outer surface of the indicator block 129 is slidably connected to the inside of the groove 9.

[0028] In this embodiment, the value on the scale line 10 is set according to the angle corresponding to the limiting sleeve 5, and the indicator block 129 corresponds to the value on the scale line 10, that is, the included angle between the limiting sleeve 5 and the fixing plate 1.

[0029] Specifically, both ends of the limiting rod 1210 are fixedly connected to the inner wall of the slide groove 9, the threaded rod 125 is rotatably connected to the inside of the slide groove 9, and the outer surface of the threaded rod 125 is threadedly engaged with the center of the protrusion 128 at the bottom of the slider 127.

[0030] In this embodiment, by setting a limiting rod 1210, the sliding of the protrusion 128 can be limited, making the bottom sliding of the slider 127 more stable.

[0031] Specifically, the top of the rotating rod 122 extends to the upper surface of the connecting block 7, and the driving bevel gear 123 and the driven bevel gear 124 are rotatably connected inside the connecting block 7. The threaded rod 125 is fixedly connected to the center of the surface of the driven bevel gear 124 near the end face of the driving bevel gear 123.

[0032] In this embodiment, rotating the rotating rod 122 can drive the driven bevel gear 124 to rotate.

[0033] The working principle and usage process of this utility model are as follows: In use, first adjust the angle of the limiting sleeve 5 according to the required drilling angle. During adjustment, the rotating rod 122 is rotated, which drives the driving bevel gear 123 to rotate. The driving bevel gear 123 drives the threaded rod 125 to rotate through the driven bevel gear 124. Through the meshing of the threaded rod 125 with the protrusion 128, the slider 127 slides. When the slider 127 slides, the limiting plate 1212 slides through the connecting column 1211. The limiting plate 1212 is located inside the groove 6. The sliding mechanism causes the groove 6 to rotate. Based on the value corresponding to the scale line 10, the limiting sleeve 5 is adjusted to the specified angle. The handle 8 is held, and the fitting plate 2 is attached to the bone surface. The top of the groove 6 is then aligned with the opening position. The drilling equipment inserts the drill bit into the limiting sleeve 5 and drills a hole into the bone. The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, shall still fall within the protection scope of this utility model's technical solution.

Claims

1. A precision positioning orthopaedic drill guide comprising a fixation plate (1), characterized in that: A fitting plate (2) is fixedly connected to the rear surface of the fixing plate (1). A rotating groove (3) is opened on the upper surface of the fixing plate (1). A rotating shaft (4) is fixedly connected to the inner wall of the rotating groove (3). A limiting sleeve (5) is rotatably connected to the outer surface of the rotating shaft (4). A groove (6) is opened on the surface of the limiting sleeve (5). A connecting block (7) is fixedly connected to the center of the front surface of the fixing plate (1). A handle (8) is integrally fixedly connected to the end of the connecting block (7) away from the adjusting component (12). A sliding groove (9) is opened through the surface of the connecting block (7). A scale line (10) is set on the surface of the connecting block (7) above the sliding groove (9). A slot (11) is opened on the surface of the connecting block (7). An adjusting component (12) is installed inside the connecting block (7). The adjusting assembly (12) includes a first bearing (121) fixedly installed inside the connecting block (7), a rotating rod (122) fixedly connected to the inner ring of the first bearing (121), a driving bevel gear (123) fixedly connected to the end of the rotating rod (122), a driven bevel gear (124) meshing with the surface of the driving bevel gear (123), a second bearing (126) fixedly installed inside the connecting block (7), a threaded rod (125) fixedly connected to the inner ring of the second bearing (126), and a slider (127) slidably connected inside the sliding groove (9). The top and bottom of the slider (127) are fixedly connected with protrusions (128). One of the protrusions (128) is movably inserted with a limiting rod (1210). The other protrusion (128) has a threaded hole that matches the threaded rod (125). An indicator block (129) is fixedly connected to the side of the slider (127). A connecting post (1211) is fixedly connected to the center of the surface of the slider (127) away from the indicator block (129). A limiting plate (1212) is fixedly connected to the end face of the connecting post (1211) away from the slider (127).

2. The precision positioning orthopedic drill guide of claim 1, wherein: Steel balls (12121) are equidistantly mounted inside the limiting plate (1212), and the surface of the limiting plate (1212) extends to the outside of the limiting plate (1212).

3. The precision positioning orthopedic drill guide of claim 2, wherein: The end of the connecting post (1211) away from the slider (127) extends into the interior of the groove (6), and the surface of the steel ball (12121) is rolled on the inner wall of the groove (6).

4. The precision positioning orthopedic drill guide of claim 1, wherein: The indicator block (129) is conical, and one end of the indicator block (129) away from the slider (127) extends to the outside of the connecting block (7). The outer surface of the indicator block (129) is slidably connected to the inside of the groove (9).

5. The precision positioning orthopedic drill guide of claim 1, wherein: Both ends of the limiting rod (1210) are fixedly connected to the inner wall of the slide groove (9), the threaded rod (125) is rotatably connected to the inside of the slide groove (9), and the outer surface of the threaded rod (125) is threadedly engaged with the center of the protrusion (128) at the bottom of the slider (127).

6. The precision positioning orthopedic drill guide of claim 1, wherein: The top of the rotating rod (122) extends to the upper surface of the connecting block (7), the driving bevel gear (123) and the driven bevel gear (124) are both rotationally connected inside the connecting block (7), and the threaded rod (125) is fixedly connected to the surface center of the driven bevel gear (124) close to the end surface of the driving bevel gear (123).

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