Spiral pressurizing and locking bone fracture plate

Abstract

The utility model relates to the technical field of bone fracture plates, and discloses a spiral compression locking bone fracture plate which comprises a bone fracture plate body, a long handle portion is arranged in the middle of the bone fracture plate body, one end of the long handle portion is connected with a first short handle portion, and the other end of the long handle portion is connected with a second short handle portion. Fixing screw holes are formed in the surfaces of the upper ends of the long handle part, the first short handle part and the second short handle part which are made of the titanium alloy and penetrate through the outer surfaces of the other ends of the long handle part, the first short handle part and the second short handle part, and inclined grooves are formed in the four corners of one end of each fixing screw hole; inserting plates are fixed to the outer walls of the ends, close to the long handle part, of the first short handle part and the second short handle part. The spiral pressurizing and locking bone fracture plate is provided with the first short handle part and the second short handle part and is used for expanding the length and functionality of the long handle part when the bone fracture position of a patient is long or the connecting face is large by medical staff, the use number of bone fracture plates of the patient and bone surface holes are reduced, and postoperative recovery is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bone fracture plates, in particular to a spiral compression locking bone fracture plate. Background Art

[0002] Bone plates are orthopedic surgical instruments commonly used in fracture surgeries. Based on the fixation method, they can be categorized as screw-fixed, lag screw-fixed, and threaded compression-fixed. Different types of plates offer varying advantages and applications. In practice, bone plates offer excellent stability and strength, effectively fixing the fracture site and promoting healing.

[0003] After searching, we found a bidirectional locking compression plate with announcement number CN204092156U, which includes several slots set on the bone steel plate, and a locking threaded hole is set in the middle of the slot to prevent the bone plate from loosening during the fracture healing process. The bone plate is a fixed structure, and its applicability to bone sites with long or large areas is poor. Multiple bone plates need to be installed for use, which increases the burden on the patient's affected area. For this reason, we propose a spiral compression locking bone plate. Utility Model Content

[0004] The purpose of the present utility model is to provide a spiral compression locking bone plate to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spiral compression locking bone plate, comprising:

[0006] A bone plate body, wherein a long handle is provided in the middle portion of the bone plate body, one end of the long handle is connected to the first short handle, and the other end of the long handle is connected to the second short handle, and the upper end surfaces of the long handle, the first short handle, and the second short handle made of titanium alloy are all provided with fixing screw holes, and the fixing screw holes penetrate to the outer surfaces of the other ends of the long handle, the first short handle, and the second short handle, and one end of the fixing screw hole is provided with an oblique groove at each of the four corners;

[0007] An insert plate is fixed to the outer wall of the first short handle and the second short handle near one end of the long handle. A connecting hole with an inner thread is provided on the upper surface of the insert plate. A slot is provided at the connection between the long handle and the insert plate. An embedded threaded hole is provided on the inner wall of the upper end of the slot, and the embedded threaded hole passes through the outer wall of the upper end of the long handle. A connecting bolt is threadedly embedded on the inner side of the embedded threaded hole.

[0008] Furthermore, the first short handle portion and the long handle portion have corresponding outer shapes and structures, and the first short handle portion, the second short handle portion and the long handle portion form a detachable structure.

[0009] Furthermore, the oblique grooves are symmetrically arranged with respect to the central axis of the fixing screw holes, and the fixing screw holes are evenly distributed at equal distances along the surfaces of the long shank portion and the first short shank portion.

[0010] Furthermore, the first short handle portion and the second short handle portion are snap-fitted to the long handle portion via the insert plate and the slot, and the connection hole matches the threaded hole diameter of the embedded threaded hole.

[0011] Furthermore, the inserting plate is threadedly connected to the slot through the connecting bolts, the embedded threaded holes and the connecting holes, and the first short shank portion and the second short shank portion are threadedly connected to the long shank portion through the connecting bolts.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The spiral compression locking bone plate is provided with a first short handle and a second short handle, which is used by medical staff to expand the length and functionality of the long handle when the patient's bone connection is long or the connection surface is large, thereby reducing the number of bone plates used by the patient and the number of holes opened on the bone surface, which is beneficial to postoperative recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model in the combined working state;

[0015] Figure 2 This is a schematic diagram of the inverted structure of the long handle of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the first short handle and the second short handle of the utility model in a disassembled state.

[0017] In the figure: 1. Bone plate body; 2. Long handle; 3. First short handle; 4. Second short handle; 5. Fixing screw hole; 6. Oblique groove; 7. Insert plate; 8. Connecting hole; 9. Slot; 10. Embedded threaded hole; 11. Connecting bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The utility model provides a spiral compression locking bone plate through improvement. Figure 1-Figure 3, comprising: a bone plate body 1, a long handle 2 is provided in the middle of the bone plate body 1, the long handle 2 plays a basic fixing role, which is convenient for connecting and combining with the expansion structure; one end of the long handle 2 is connected to a first short handle 3, the first short handle 3 is consistent with the shape structure of the long handle 2, the other end of the long handle 2 is connected to a second short handle 4, and the first short handle 3 and the second short handle 4 form a detachable structure with the long handle 2, the upper end surfaces of the long handle 2, the first short handle 3 and the second short handle 4 made of titanium alloy are all provided with fixing screw holes 5, the long handle 2, the first short handle 3 and the second short handle 4 made of titanium alloy are The second short handle 4 has high structural strength and biocompatibility; the fixing screw holes 5 are evenly distributed along the surfaces of the long handle 2 and the first short handle 3, and the fixing screw holes 5 pass through the outer surfaces of the other ends of the long handle 2, the first short handle 3 and the second short handle 4. An oblique groove 6 is provided at each of the four corners of one end of the fixing screw hole 5. The oblique groove 6 is symmetrically arranged about the central axis of the fixing screw hole 5. The oblique groove 6 is used to enable the fasteners for fixing the bone plate to be installed from multiple angles, thereby improving the anchoring stability after multi-angle installation; an insert is fixed to the outer wall of the first short handle 3 and the second short handle 4 near one end of the long handle 2 7, the upper surface of the insert plate 7 is provided with a connecting hole 8 with an inner thread, and the connecting hole 8 is used to connect the insert plate 7 to the slot 9 through a connecting bolt 11; a slot 9 is provided at the connection between the long handle 2 and the insert plate 7, and the first short handle 3 and the second short handle 4 are connected to the long handle 2 through the insert plate 7 and the slot 9. An embedded threaded hole 10 is provided on the inner wall of the upper end of the slot 9, and the embedded threaded hole 10 passes through the outer wall of the upper end of the long handle 2, and the threaded aperture of the connecting hole 8 matches that of the embedded threaded hole 10. The inner side of the embedded threaded hole 10 is threadedly embedded with a connecting bolt 11, and the insert plate 7 is connected. A threaded connection is formed between the connecting bolt 11, the embedded threaded hole 10 and the connecting hole 8 and the slot 9, and the first short handle 3 and the second short handle 4 are threadedly connected to the long handle 2 through the connecting bolt 11. The first short handle 3 and the second short handle 4 are provided for medical staff to expand the length and functionality of the long handle 2 according to the actual situation of the patient's bone that needs to be fixed. When the connection is long or the connection surface is large, the first short handle 3 and the second short handle 4 can be installed to adjust the applicability of the bone joint, reduce the number of bone plates used by the patient and the number of holes opened on the bone surface, and are beneficial to postoperative recovery.

[0020] Working principle: For this type of spiral compression locking bone plate, the staff first chooses whether to assemble the first short handle part 3 and the second short handle part 4 according to the length and area of ​​the patient's bone fracture. If the length of the patient's bone fracture is longer or the area is larger, the staff can install the first short handle part 3 or the second short handle part 4 at both ends of the long handle part 2 for adaptation, so that the patient does not need to install multiple longer bone fracture plates, avoiding increasing the burden on the patient's bone and the opening of the bone surface. Then the first short handle part 3 is used to adaptively increase the length of the bone fracture plate body 1, and the second short handle part 4 is used to increase the coverage area of ​​one end of the bone fracture plate body 1. Through the combination of the first short handle part 3 and the second short handle part 4 with the long handle part 2, the plate body 1 is improved with a variety of The applicability of the bone setting conditions makes it convenient for medical staff to use fasteners to fix the bones that need to be connected from multiple angles through the fixing screw holes 5 and the oblique grooves 6. Finally, the first short handle 3 and the second short handle 4 are connected to one side of the slot 9 of the long handle 2 through the insert plate 7. After the insert plate 7 is tightly connected to the slot 9, the medical staff connects the insert plate 7 and the slot 9 through the connecting bolt 11 and the embedded threaded hole 10 and the connecting hole 8 with the same threaded hole diameter to prevent the first short handle 3 and the second short handle 4 from falling off from the long handle 2, and the nut end of the connecting bolt 11 is on the inner side of the embedded threaded hole 10 to avoid the connecting bolt 11 from causing damage to the bone and reduce the infiltration of human tissue fluid into the embedded threaded hole 10 and the connecting hole 8.

[0021] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral compression locking bone plate, characterized in that: include: A bone fracture plate body (1), wherein a long handle (2) is arranged in the middle of the bone fracture plate body (1), one end of the long handle (2) is connected to a first short handle (3), and the other end of the long handle (2) is connected to a second short handle (4), and the upper end surfaces of the long handle (2), the first short handle (3) and the second short handle (4) made of titanium alloy are all provided with fixing screw holes (5), and the fixing screw holes (5) penetrate to the outer surfaces of the other ends of the long handle (2), the first short handle (3) and the second short handle (4), and the four corners of one end of the fixing screw hole (5) are all provided with oblique grooves (6); The insert plate (7) is fixed to the outer wall of the first short handle (3) and the second short handle (4) near one end of the long handle (2); a connecting hole (8) with an inner thread is provided on the upper surface of the insert plate (7); a slot (9) is provided at the connection between the long handle (2) and the insert plate (7); an embedded threaded hole (10) is provided on the inner wall of the upper end of the slot (9); and the embedded threaded hole (10) penetrates to the outer wall of the upper end of the long handle (2); a connecting bolt (11) is embedded in the inner side of the embedded threaded hole (10) through a thread.

2. A spiral compression locking bone plate according to claim 1, characterized in that: The first short handle (3) and the long handle (2) have similar external structures, and a detachable structure is formed between the first short handle (3), the second short handle (4) and the long handle (2).

3. The spiral compression locking bone plate according to claim 1, characterized in that: The inclined grooves (6) are symmetrically arranged with respect to the central axis of the fixing screw holes (5), and the fixing screw holes (5) are evenly distributed at equal distances along the surfaces of the long handle portion (2) and the first short handle portion (3).

4. The spiral compression locking bone plate according to claim 1, characterized in that: The first short handle part (3) and the second short handle part (4) are snap-fitted to the long handle part (2) via an insert plate (7) and a slot (9), and the threaded hole diameter of the connecting hole (8) matches that of the embedded threaded hole (10).

5. The spiral compression locking bone plate according to claim 1, characterized in that: The insert plate (7) is threadedly connected to the slot (9) via a connecting bolt (11), an embedded threaded hole (10) and a connecting hole (8), and the first short shank portion (3) and the second short shank portion (4) are threadedly connected to the long shank portion (2) via a connecting bolt (11).

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