Bone drill guider convenient to use
By designing a bone drill guide that includes an arcuate frame and a bone positioning fixing assembly, the problems of inaccurate angle positioning and low hole drilling accuracy during use of the bone drill guide are solved, and higher angle positioning accuracy is achieved and punch stability.
Patent Information
- Application Number
- CN202420753486.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During use, bone drill guides are prone to problems such as inaccurate angle positioning, prone to deviation in punching, and bone movement, resulting in reduced punching accuracy.
A bone drill guide is designed including an arch frame, a mounting transverse plate at both ends of the arch frame, a bone drill guide assembly and a bone positioning fixing assembly. Through the arcuate guide bar hole and arcuate slide hole of the arch frame, combined with the arcuate slider, guide bolt sleeve and guide bolt, hole punching at different angles is achieved, and the bone is fixed through the bone positioning fixing assembly to avoid movement.
It improves the angular positioning accuracy of the bone drill guide, reduces the hole punch deviation, and enhances the stability and accuracy of the hole punch.
Smart Images
Figure CN222426131U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bone drill guide structures, in particular to a bone drill guide that is easy to use. Background Art
[0002] A bone drill is a commonly used bone drilling instrument used in neurosurgery, cardiothoracic surgery, orthopedics, and burns. It is particularly important in orthopedics. Bone drills are usually electric, and a motor controls the rotation of the drill bit to make holes in the corresponding bones. When repairing the patient's leg bone, the medical staff places the leg bone to be repaired on the drilling table, then uses the bone drill to drill holes in the patient's leg bone, and then fixes the leg bone with bone screws. When using a bone drill to drill holes in the patient's bones at different angles, the user's handheld handle is prone to shaking, and the drilling is prone to deviation. It is difficult to locate the angle. When drilling holes in the bones, the hands or arms are very easy to move, resulting in drilling errors. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to provide a bone drill guide that is easy to use, which solves the problems of inaccurate angle positioning of the bone drill guide, easy deviation during drilling, and reduced drilling accuracy due to easy movement of bones during drilling.
[0004] According to the utility model, a bone drill guide that is easy to use comprises an arch frame, mounting cross plates arranged at both ends of the arch frame, a bone drill guide assembly and a bone positioning and fixing assembly, wherein an arch guide strip hole is arranged in the middle area of the arch frame, and two arch slide holes are symmetrically arranged on both sides of the arch guide strip hole on the arch frame, and the bone drill guide assembly comprises an arcuate slider matching the upper surface of the arch frame, a guide bolt sleeve and a guide bolt, and the lower surface of the arcuate slider is provided with two inverted T-shaped arcuate slide rails correspondingly inserted into the two arch slide holes, and four first tightening bolts are symmetrically arranged on both sides of the arcuate slider, and the first tightening bolts can be screwed down and pressed against the arch guide strip hole. A guide bolt sleeve is fixed on the middle position of the arc-shaped slider on the upper surface of the arch frame between the guide bar hole and the two arch-shaped sliding holes, a guide bolt is spirally penetrated on the axis of the guide bolt sleeve, an adjusting rotating rod is provided on the top of the guide bolt, a square slot is provided at the bottom end of the guide bolt, a bone drill is inserted into the square slot and fixed with a pin, two bone positioning and fixing components are respectively provided on both sides of the arch frame, the bone positioning and fixing components include a mounting piece, an extrusion bolt rod and a fixing head, the mounting piece is detachably mounted on the side of the arch frame, the extrusion bolt rod spirally penetrates the mounting piece, and a fixing head is rotatably sleeved on the bottom end of the extrusion bolt rod.
[0005] In some embodiments of the present invention, the curvature of the arch frame is 180 degrees, and the curvature of the curved sliding block is not greater than 30 degrees.
[0006] In other embodiments of the present invention, the mounting member includes a U-shaped clamp, an extrusion bolt sleeve and a second tightening bolt, the second tightening bolt is spirally penetrated through the horizontal beam on the upper side of the U-shaped clamp when the U-shaped clamp is placed vertically, an extrusion bolt sleeve is fixed to the outer wall of the vertical beam on the side of the U-shaped clamp when the U-shaped clamp is placed vertically, and the extrusion bolt rod is spirally penetrated through the extrusion bolt sleeve.
[0007] In other embodiments of the utility model, the fixing head includes a mounting circular plate and an arc-shaped rubber pad, the bottom end of the extrusion bolt rod is rotatably mounted at the center position of the upper surface of the mounting circular plate, and an arc-shaped rubber pad is fixed to the lower surface of the mounting circular plate.
[0008] In other embodiments of the present invention, the top of the bone drill is a square plug, and the bone drill has models of different thicknesses.
[0009] In some other embodiments of the present invention, angle scales are provided on both sides of the arched guide strip hole on the arched frame.
[0010] In the utility model, the bow frame can be fixed on the operating table without shaking. The bow frame is placed on the arm or leg, and the arm or leg is fixed without shaking by the bone positioning and fixing component. The position of the arc-surface slider on the bow frame can be adjusted to achieve drilling at different angles. The guide bolt is rotated and moved downward stably by rotating the adjusting rotating rod, and the bone drill is moved downward and rotated to drive into the bone to achieve drilling. The fixing stability is good and the drilling accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 The utility model is a structural schematic diagram of a bone drill guide which is easy to use.
[0013] Figure 2 The utility model is a schematic cross-sectional structure diagram of a bone drill guide that is easy to use.
[0014] Figure 3 This is a structural schematic diagram of the bone positioning and fixing assembly proposed by the utility model.
[0015] In the figure: 1. Bow-shaped frame; 11. Bow-shaped guide bar hole; 12. Bow-shaped sliding hole; 2. Installation cross plate; 3. Arc surface slider; 31. First tightening bolt; 32. Inverted T-shaped arc-shaped slide rail; 4. Guide bolt sleeve; 5. Guide bolt; 6. Bone positioning and fixing component; 61. U-shaped clamping block; 611. Second tightening bolt; 62. Extrusion bolt rod; 63. Installation round plate; 64. Arc-shaped rubber pad; 65. Extrusion bolt sleeve; 7. Bone drill; 71. Pin. Detailed implementation manner
[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0017] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.
[0018] Refer to Figure 1-3 A bone drill guide that is easy to use, including a bow-shaped frame 1, installation cross plates 2 provided at both ends of the bow-shaped frame 1, a bone drill guiding component, and a bone positioning and fixing component 6. A bow-shaped guide bar hole 11 is provided in the middle area of the bow-shaped frame 1, and two bow-shaped sliding holes 12 are symmetrically provided on both sides of the bow-shaped guide bar hole 11 on the bow-shaped frame 1. The bone drill guiding component includes an arc surface slider 3 that matches the upper surface of the bow-shaped frame 1, a guide bolt sleeve 4, and a guide bolt 5. Two inverted T-shaped arc-shaped slide rails 32 corresponding to being inserted into the two bow-shaped sliding holes 12 are provided on the lower surface of the arc surface slider 3. Four first tightening bolts 31 are symmetrically provided on both sides of the arc surface slider 3. The first tightening bolts 31 can be screwed down against the upper surface of the bow-shaped frame 1 between the bow-shaped guide bar hole 11 and the two bow-shaped sliding holes 12. A guide bolt sleeve 4 is fixed at the middle position of the arc surface slider 3. A guide bolt 5 is spirally penetrated through the axis of the guide bolt sleeve 4. An adjusting rotating rod 51 is provided at the top of the guide bolt 5. A square slot is provided at the bottom end of the guide bolt 5. A bone drill 7 is inserted into the square slot and fixed with a pin 71. Two bone positioning and fixing components are respectively provided on both sides of the bow-shaped frame 1. The bone positioning and fixing component 6 includes a mounting member, an extrusion bolt rod 62, and a fixing head. The mounting member is detachably mounted on the side of the bow-shaped frame 1. The extrusion bolt rod 62 is spirally penetrated through the mounting member. A fixing head is rotatably sleeved at the bottom end of the extrusion bolt rod 62.
[0019] Place the leg or arm that needs to be punched on the operating table, buckle the bow frame 1 on the leg or arm, and then use bolts to fix the installation cross plate 2 on the operating table. According to needs, clamp the mounting parts on both sides of the bow frame 1, set at least two on each side, and fix the mounting parts. At this time, adjust the extrusion bolt rod 62 to move downward, and fix the fixing head against the leg or arm. After fixing, according to the punching angle and position, rotate the arc slider 3. After positioning, rotate the first tightening bolt 31 downward and against the surface of the bow frame 1 to achieve fixation. Insert the top of the bone drill 7 into the square slot at the bottom of the guide bolt sleeve 4 and fix it with a pin 71. By rotating the adjustment rotating rod 51, the guide bolt sleeve 4 is rotated downward to achieve fixed downward rotation, screwed into the bone, complete the punching, and then rotated in the opposite direction to remove the bone drill 7.
[0020] When disassembling, loosen the bone positioning and fixing assembly 6 and then remove the bolts on the installation cross plate 2.
[0021] The arc of the arch frame 1 is 180 degrees, and the arc of the arc surface slider 3 is not greater than 30 degrees. The arc of the arc surface slider 3 is not greater than 30 degrees, which is convenient for observing the rotation angle and positioning. The 180-degree setting can basically meet the punching requirements at different positions.
[0022] The mounting part includes a U-shaped clamp block 61, an extrusion bolt sleeve 65 and a second tightening bolt 611. The second tightening bolt 611 is spirally penetrated on the horizontal beam on the upper side of the U-shaped clamp block 61, and the extrusion bolt sleeve 65 is fixed on the outer wall of the vertical beam on the side of the U-shaped clamp block 61. The extrusion bolt rod 62 is spirally penetrated through the extrusion bolt sleeve 65.
[0023] Insert the U-shaped block 61 on the side of the arch frame 1, and screw the second tightening bolt 611 downward against the surface of the arch frame 1 to fix the U-shaped block 61. The fixing head is moved downward against the leg or arm for fixing by rotating the extruding bolt rod 62.
[0024] The fixing head includes a mounting circular plate 63 and an arc-shaped rubber pad 64 . The bottom end of the extrusion bolt rod 62 is rotatably mounted at the center position of the upper surface of the mounting circular plate 63 . The arc-shaped rubber pad 64 is fixed to the lower surface of the mounting circular plate 63 .
[0025] The arc-shaped rubber pad 64 can fit on the leg or arm, making it more comfortable when squeezed and having a better fixing effect.
[0026] The top of the bone drill 7 is a square plug, and the bone drill 7 has models of different thicknesses. The bone drills 7 of different thicknesses can be replaced.
[0027] The arch frame 1 is provided with angle scales on both sides of the arch guide bar hole 11, so as to facilitate observation of the rotation angle and reduce observation error.
[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A bone drill guide that is easy to use, characterized in that: The invention comprises an arch frame (1), a mounting cross plate (2) arranged at both ends of the arch frame (1), a bone drill guide assembly and a bone positioning and fixing assembly (6); the middle area of the arch frame (1) is provided with an arch guide bar hole (11); the arch frame (1) is symmetrically provided with two arch slide holes (12) on both sides of the arch guide bar hole (11); the bone drill guide assembly comprises an arc-shaped slider (3) matching the upper surface of the arch frame (1), a guide bolt sleeve (4) and a guide bolt (5); the lower surface of the arc-shaped slider (3) is provided with two inverted T-shaped arc-shaped slide rails (32) correspondingly inserted into the two arch slide holes (12); four first tightening bolts (31) are symmetrically arranged on both sides of the arc-shaped slider (3); the first tightening bolts (31) can be screwed down to abut against the arch guide bar hole (11) and the two arch slide holes (12). A guide bolt sleeve (4) is fixed at the middle position of the arc-shaped sliding block (3) on the upper surface of the arch frame (1) between the arch-shaped sliding holes (12), a guide bolt (5) is spirally penetrated on the axis of the guide bolt sleeve (4), an adjusting rotating rod (51) is provided on the top of the guide bolt (5), a square slot is provided at the bottom end of the guide bolt (5), a bone drill (7) is inserted into the square slot and fixed with a pin (71), two bone positioning and fixing components are respectively provided on both sides of the arch frame (1), the bone positioning and fixing components (6) include a mounting part, an extrusion bolt rod (62) and a fixing head, the mounting part is detachably mounted on the side of the arch frame (1), the extrusion bolt rod (62) spirally penetrates the mounting part, and a fixing head is rotatably sleeved on the bottom end of the extrusion bolt rod (62).
2. A bone drill guide that is easy to use according to claim 1, characterized in that: The arc of the bow frame (1) is 180 degrees, and the arc of the curved surface slider (3) is not greater than 30 degrees.
3. The bone drill guide according to claim 1, characterized in that: The mounting member comprises a U-shaped clamping block (61), a squeeze bolt sleeve (65) and a second tightening bolt (611); the second tightening bolt (611) is spirally penetrated through a horizontal beam on the upper side of the U-shaped clamping block (61) when the U-shaped clamping block (61) is placed vertically; the squeeze bolt sleeve (65) is fixed to the outer wall of a vertical beam on the side of the U-shaped clamping block (61) when the U-shaped clamping block (61) is placed vertically; and the squeeze bolt rod (62) is spirally penetrated through the squeeze bolt sleeve (65).
4. A bone drill guide that is easy to use according to claim 1, characterized in that: The fixing head comprises a mounting circular plate (63) and an arc-shaped rubber pad (64); the bottom end of the extrusion bolt rod (62) is rotatably mounted at the center position of the upper surface of the mounting circular plate (63); and the arc-shaped rubber pad (64) is fixed to the lower surface of the mounting circular plate (63).
5. The bone drill guide according to claim 1, characterized in that: The top of the bone drill (7) is a square plug, and the bone drill (7) has models of different thicknesses.
6. The bone drill guide according to claim 1, characterized in that: The bow-shaped frame (1) is provided with angle scales on both sides of the bow-shaped guide bar hole (11).