Angle adjustable orthopedic drill guide

Abstract

The utility model relates to the field of orthopedics drilling guider, especially adjustable angle's orthopedics drilling guider, including first guider, movable shell, second guider, bone drill, first spherical universal joint and second spherical universal joint, the right end fixed joint of first guider has the second guider, movable shell sets up in the outer wall of second guider, the front and back both ends of second guider are provided with scale, the utility model discloses through first spherical universal joint cooperation second spherical universal joint can make bone drill 0 to 30 degrees's full range of adjustment, cooperation by rotating frame and rotating ring then can make first guider and second guider along the inner wall of rotating frame and carry out 360 degrees's rotation adjustment, both mutual cooperation can allow the doctor to adjust the drilling angle of bone drill in the operation nimblely, avoids repeatedly adjusting the guide plate, solves the orthopedics drilling guider of existing when using's guiding angle very limited, and the problem that user is inconvenient to adjust flexibly.

Description

Technical Field

[0001] This utility model belongs to the field of orthopedic drilling guides, specifically relating to an adjustable-angle orthopedic drilling guide. Background Technology

[0002] An orthopedic drill guide is a precision tool used in orthopedic surgery. Its main purpose is to help surgeons accurately position and guide the drill bit during drilling operations. It is commonly used in fracture repair, joint replacement, spinal surgery, and other procedures.

[0003] Existing orthopedic drilling guides mostly use a sliding sleeve to adjust the bone drill to a certain angle. However, the adjustment structure of existing drilling guides is too simple, and the angle that can be adjusted for the bone drill is very limited. They can often only make small-angle drilling adjustments in a single direction. As a result, medical staff need to repeatedly adjust the guide plate to adjust the drilling angle of the bone drill to the appropriate angle during actual use.

[0004] Therefore, in response to the problem that the existing orthopedic drilling guides have very limited guiding angles and are not convenient for users to adjust flexibly, an adjustable-angle orthopedic drilling guide was developed. By adding a universal joint structure and a rotation adjustment structure to the orthopedic drilling guide, the drilling angle of the bone drill can be flexibly adjusted during the operation, avoiding repeated adjustments of the guide plate. Utility Model Content

[0005] To overcome the problem that existing orthopedic drilling guides have very limited guiding angles and are not convenient for users to adjust flexibly.

[0006] The technical solution of this utility model is as follows: an adjustable angle orthopedic drilling guide, including a first guide, a movable outer shell, and a second guide, as well as a bone drill, a first spherical universal joint, and a second spherical universal joint. The second guide has graduations at both ends, and a first groove is formed through the edges of both ends. A positioning pin is installed in the first groove, and a threaded post is fixed to the rear end of the positioning pin. A rotating ring is fixed to the upper end of the first guide. Several sets of grooves are equidistantly distributed around the rotating ring at its left and right ends. A rotating frame is rotatably mounted on the rotating ring. Several sets of protrusions are symmetrically distributed and equidistantly distributed around the rotating frame at its inner wall. A second spherical universal joint is fixed to the right end of the rotating frame, and a first spherical universal joint is rotatably mounted inside the second spherical universal joint. A bone drill is fixed to the right end of the first spherical universal joint. The second groove is formed at the front end of the movable outer shell, a threaded groove is formed at the rear end of the second groove, and a sliding groove is formed at the front end of the movable outer shell.

[0007] Preferably, the right end of the first guide is fixedly connected to the second guide, and the movable housing is disposed on the outer wall of the second guide.

[0008] Preferably, the outer walls of the left and right ends of the second guide are fixed with limit posts, and the left and right ends of the movable housing are provided with limit grooves.

[0009] Preferably, the scale is equipped with display numbers, and the limit post and the limit groove are adapted to each other.

[0010] Preferably, the outer wall of the bone drill fits into the inner wall of the groove, and the protrusion matches the groove.

[0011] Preferably, the inner wall of the second groove is fitted with the outer wall of the second guide, and the rear end of the second guide is fitted with the front end of the screw groove.

[0012] Preferably, the threaded groove is arc-shaped, and the threaded post is adapted to the threaded groove.

[0013] Preferably, the second guide and the movable housing are uniformly semi-circular, and the protrusion, rotating frame and rotating ring are all made of plastic.

[0014] Preferably, the front end of the movable housing is provided with a pointer that corresponds to the scale, and the outer wall of the rotating frame is in contact with the upper end of the first guide.

[0015] Preferably, the first spherical universal joint and the second spherical universal joint are matched, and the movable housing is made of plastic.

[0016] The beneficial effects of this utility model are: 1. The first ball joint and the second ball joint can be used to adjust the bone drill in all directions from 0 to 30 degrees. With the help of the rotating frame and the rotating ring, the first guide and the second guide can be rotated 360 degrees along the inner wall of the rotating frame. The two work together to allow the doctor to flexibly adjust the drilling angle of the bone drill during the operation and avoid repeated adjustments of the guide plate. 2. The movable outer shell can move in accordance with the rotation of the bone drill, and the scale can be used to make precise references for adjusting the rotation of the bone drill, thereby improving the accuracy of bone drill adjustment; 3. By using protrusions and grooves, along with positioning bolts and threaded pins, the rotating ring that rotates along the inner wall of the rotating frame, the first guide and the second guide, and the movable outer shell that slides along the outer wall of the second guide can be positioned and fixed to improve the stability of the bone drill after rotation adjustment. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the adjustable-angle orthopedic drilling guide of this utility model. Figure 2The diagram shown is a three-dimensional disassembled view of the adjustable-angle orthopedic drilling guide of this utility model. Figure 3 The diagram shown is a three-dimensional disassembled view of the first guide, the second guide, and the positioning bolt of the adjustable-angle orthopedic drilling guide of this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of the movable outer shell of the adjustable-angle orthopedic drilling guide of this utility model. Figure 5 The diagram shows a three-dimensional structural schematic of the rotating frame and the second spherical universal joint of the adjustable-angle orthopedic drilling guide of this utility model. Figure 6 The diagram shown is a three-dimensional structural schematic of the bone drill of the adjustable-angle orthopedic drilling guide of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1-First guide, 2-Bone drill, 3-Modible housing, 4-First spherical universal joint, 5-Positioning bolt, 6-Second guide, 7-Limiting post, 8-Scale, 9-First groove, 10-Threaded post, 11-Rotating ring, 12-Groove, 13-Slide groove, 14-Limiting groove, 15-Threaded groove, 16-Second groove, 17-Second spherical universal joint, 18-Rotating frame, 19-Protrusion. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figures 1-6 This utility model provides an embodiment of an adjustable-angle orthopedic drilling guide, comprising a first guide 1, a movable housing 3, and a second guide 6, as well as a bone drill 2, a first spherical universal joint 4, and a second spherical universal joint 17. The second guide 6 has graduations 8 at both its front and rear ends, and a first groove 9 is formed through the edges of both ends of the second guide 6. A positioning pin 5 is disposed within the first groove 9, and a threaded post 10 is fixedly connected to the rear end of the positioning pin 5. A rotating ring 11 is fixedly connected to the upper end of the first guide 1, and circumferential rotating rings are formed at both ends of the rotating ring 11. A number of grooves 12 are evenly distributed around the circumference of the rotating ring 11. A rotating frame 18 is rotatably mounted on the rotating ring 11. A number of protrusions 19 are symmetrically distributed and evenly distributed around the rotating frame 18 on the inner wall of the rotating frame 18. A second spherical universal joint 17 is fixedly connected to the right end of the rotating frame 18. A first spherical universal joint 4 is rotatably mounted inside the second spherical universal joint 17. A bone drill 2 is fixedly connected to the right end of the first spherical universal joint 4. A second groove 16 is opened at the front end of the movable outer shell 3. A screw groove 15 is opened at the rear end of the second groove 16. A sliding groove 13 is opened at the front end of the movable outer shell 3.

[0021] The first spherical universal joint 17, in conjunction with the second spherical universal joint 4, allows the bone drill 2 to be adjusted omnidirectionally from 0 to 30 degrees. Combined with the rotating frame 18 and the rotating ring 11, the first guide 1 and the second guide 6 can be rotated 360 degrees along the inner wall of the rotating frame 18. This combination allows the surgeon to flexibly adjust the drilling angle of the bone drill 2 during surgery, avoiding repeated adjustments to the guide plate. The movable outer shell 3 moves in sync with the rotation of the bone drill 2. The scale 8 provides a precise reference for the rotation adjustment of the bone drill 2, thereby improving the accuracy of the adjustment. Furthermore, the protrusion 19 and groove 12, along with the positioning pin 5 and threaded post 10, respectively position and fix the rotating ring 11 (rotating along the inner wall of the rotating frame 18), the first guide 1 and the second guide 6, and the movable outer shell 3 (sliding along the outer wall of the second guide 6), thus improving the stability of the bone drill 2 after rotation adjustment.

[0022] Please see Figures 3-4 In this embodiment, limiting posts 7 are fixed to the outer walls of the left and right ends of the second guide 6, and limiting grooves 14 are opened through the left and right ends of the movable shell 3. During use, the limiting posts 7 can prevent the movable shell 3 from falling off the second guide 6. The limiting posts 7 and the limiting grooves 14 are adapted to each other. The scale 8 is provided with display numbers. During use, the mutually adapted limiting posts 7 and limiting grooves 14 can help improve the stability of the movable shell 3 when it moves and adjusts along the outer wall of the second guide 6. The right end of the first guide 1 is fixed to the second guide 6, and the movable shell 3 is set on the outer wall of the second guide 6. During use, the first guide 1 and the second guide 6 can form the main body of the drilling guide to support and limit the bone drill 2. The first ball joint 4 and the second ball joint 17 are adapted to each other. The movable shell 3 is made of plastic. During use, the plastic material of the movable shell 3 can ensure the smoothness of its sliding displacement adjustment and reduce its production and use costs.

[0023] Please see Figures 4-6 In this embodiment, the outer wall of the bone drill 2 is fitted with the inner wall of the slide groove 13, and the protrusion 19 is adapted to the groove 12. In use, the slide groove 13 can provide limiting assistance to the outer wall of the bone drill 2 to improve the stability of the bone drill 2 during rotation adjustment. The inner wall of the second groove 16 is fitted with the outer wall of the second guide 6, and the rear end of the second guide 6 is fitted with the front end of the screw groove 15. In use, the second groove 16 can provide additional limiting assistance to the outer wall of the second guide 6, thereby improving the stability of the movable housing 3 in moving adjustment along the outer wall of the second guide 6. The screw groove 15 is arc-shaped, and the threaded post 10 is adapted to the screw groove 15. In use, the arc-shaped screw groove 15 can make the positioning bolt 5, which follows the displacement adjustment of the movable housing 3, be threaded and fixed at any time to position and fix the movable housing 3 after moving adjustment.

[0024] Please see Figures 3-4 In this embodiment, the second guide 6 and the movable housing 3 are uniformly semi-arc-shaped. The protrusion 19, the rotating frame 18, and the rotating ring 11 are all made of plastic. In use, the plastic protrusion 19 can deform and enter the groove 12 in sequence to position and fix the rotating ring 11 for rotation adjustment. The front end of the movable housing 3 is provided with a pointer that corresponds to the scale 8. The outer wall of the rotating frame 18 is in contact with the upper end of the first guide 1. In use, the scale 8 can assist the doctor in adjusting the accuracy of the rotation adjustment of the movable housing 3 and the bone drill 2.

[0025] During use, medical staff hold the orthopedic drilling guide, which consists of the first guide 1 and the second guide 6, and align the bone drill 2, which is hinged to the orthopedic drilling guide via the first spherical universal joint 17 and the second spherical universal joint 4, with the bone drill to drill a hole in the patient's bone. When it is necessary to adjust the drilling angle of the bone drill 2, the first guide 1 and the second guide 6 are rotated by hand to adjust the second guide 6 to a suitable horizontal angle, and the plastic protrusion 19 deforms and enters the groove 12 to initially position the second guide 6 after rotation adjustment. Next, the sliding movable outer shell 3 moves along the outer wall of the second guide 6 and the scale 8 to drive the bone drill 2 to make precise angle adjustment. After the bone drill 2 is adjusted, the positioning bolt 5 is turned to make the threaded post 10 threaded into the threaded groove 15 to position and fix the bone drill 2 after the adjustment, so as to accurately position and guide the drilling position of the bone drill 2.

[0026] Through the above steps, the first spherical universal joint 17, in conjunction with the second spherical universal joint 4, allows the bone drill 2 to be adjusted omnidirectionally from 0 to 30 degrees. Combined with the rotating frame 18 and rotating ring 11, the first guide 1 and the second guide 6 can be rotated 360 degrees along the inner wall of the rotating frame 18. This interplay allows the surgeon to flexibly adjust the drilling angle of the bone drill 2 during surgery, avoiding repeated adjustments to the guide plate. The scale 8 assists the surgeon in adjusting the precision of the rotation adjustment of the movable outer shell 3. Furthermore, the protrusion 19 and groove 12, along with the positioning bolt 5 and threaded post 10, respectively position and fix the first guide 1, the second guide 6, and the movable outer shell 3, improving the stability of the bone drill 2 after rotation adjustment. This solves the problem that existing orthopedic drilling guides have very limited guiding angles and are inconvenient for users to adjust flexibly.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An adjustable-angle orthopedic drilling guide, comprising a first guide (1), a movable housing (3), and a second guide (6), characterized in that: It also includes a bone drill (2), a first spherical universal joint (4) and a second spherical universal joint (17). The front and rear ends of the second guide (6) are provided with scales (8). The front and rear ends of the second guide (6) are provided with a first groove (9). The first groove (9) is provided with a positioning bolt (5). The rear end of the positioning bolt (5) is fixed with a threaded post (10). The upper end of the first guide (1) is fixed with a rotating ring (11). The left and right ends of the rotating ring (11) are provided with several sets of grooves (12) evenly distributed around the rotating ring (11). The rotating ring (11) rotates on the rotating ring (11). A rotating frame (18) is installed. Several sets of protrusions (19) are symmetrically distributed on the left and right and equidistantly distributed around the rotating frame (18) on the inner wall of the rotating frame (18). A second spherical universal joint (17) is fixed to the right end of the rotating frame (18). A first spherical universal joint (4) is rotatably installed inside the second spherical universal joint (17). A bone drill (2) is fixed to the right end of the first spherical universal joint (4). A second groove (16) is opened at the front end of the movable shell (3). A screw groove (15) is opened at the rear end of the second groove (16). A sliding groove (13) is opened at the front end of the movable shell (3).

2. The adjustable-angle orthopedic drilling guide according to claim 1, characterized in that: The right end of the first guide (1) is fixed to the second guide (6), and the movable housing (3) is disposed on the outer wall of the second guide (6).

3. The adjustable-angle orthopedic drilling guide according to claim 2, characterized in that: Limiting posts (7) are fixed to the outer walls of the left and right ends of the second guide (6), and limiting grooves (14) are opened through the left and right ends of the movable outer shell (3).

4. The adjustable-angle orthopedic drilling guide according to claim 3, characterized in that: The scale (8) is equipped with display numbers, and the limit post (7) is matched with the limit groove (14).

5. The adjustable-angle orthopedic drilling guide according to claim 4, characterized in that: The outer wall of the bone drill (2) fits into the inner wall of the groove (13), and the protrusion (19) matches the groove (12).

6. The adjustable-angle orthopedic drilling guide according to claim 5, characterized in that: The inner wall of the second groove (16) is in contact with the outer wall of the second guide (6), and the rear end of the second guide (6) is in contact with the front end of the screw groove (15).

7. The adjustable-angle orthopedic drilling guide according to claim 6, characterized in that: The threaded groove (15) is arc-shaped, and the threaded post (10) is adapted to the threaded groove (15).

8. The adjustable-angle orthopedic drilling guide according to claim 7, characterized in that: The second guide (6) and the movable shell (3) are uniformly semi-circular, and the protrusion (19), the rotating frame (18) and the rotating ring (11) are all made of plastic.

9. The adjustable-angle orthopedic drilling guide according to claim 8, characterized in that: The front end of the movable outer shell (3) is provided with a pointer that corresponds to the scale (8), and the outer wall of the rotating frame (18) is in contact with the upper end of the first guide (1).

10. The adjustable-angle orthopedic drilling guide according to claim 9, characterized in that: The first spherical universal joint (4) is adapted to the second spherical universal joint (17), and the movable outer shell (3) is made of plastic.

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