Metal bone fracture plate capable of stably setting bones

Abstract

The invention discloses a metal bone fracture plate with a stable bone fracture setting function, and relates to the technical field of medical apparatuses and instruments. The bone fracture plate comprises a first bone fracture plate body and a second bone fracture plate body which are symmetrically arranged, the sides, close to each other, of the first bone fracture plate body and the second bone fracture plate body are fixedly provided with an upper butt joint cylinder and a lower butt joint cylinder respectively, the upper butt joint cylinder is located at the top of the lower butt joint cylinder, and the axis of the upper butt joint cylinder and the axis of the lower butt joint cylinder are kept consistent; the sides, close to each other, of the first bone fracture plate and the second bone fracture plate are each fixedly provided with two hanging rotating sleeves. By arranging the upper butt joint cylinder and the lower butt joint cylinder, angle adjustment can be conducted on the first bone fracture plate and the second bone fracture plate firstly, then a bone fracture operation is conducted, the bone fracture plates do not need to be shaped in advance, shaping of the bone fracture plates can be completed through cooperation of the flower-shaped positioning columns, the upper butt joint cylinder and the lower butt joint cylinder, and the bone fracture effect is improved while the enough bone fracture surface is guaranteed. The preparation time before the bone setting operation is greatly shortened, and the treatment process of a patient is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a metal bone fracture plate for stable bone fracture. Background Art

[0002] Metal plates and metal bone screws (referred to as bone plates and bone screws) are the most widely used type of implants in orthopedic surgery. They are mainly used to connect and fix two or more bones after fractures. With the continuous development of technology, metal locking bone plates and metal locking bone screws have gradually become the mainstream of the market. The materials of bone plates and bone screws mainly include stainless steel, titanium alloy, pure titanium, etc. As a type of device implanted in the human body, the quality of their products directly affects the health and safety of patients. Therefore, such products are defined as Class III high-risk medical devices.

[0003] Existing bone plates can be divided into straight, anatomical and angled types. Since patients of different ages and body shapes have different bone shapes and sizes, straight, anatomical or angled bone plates need to be shaped in advance, resulting in a certain amount of preparation time for bone plate access, which will delay the patient's treatment. At the same time, the shaped bone plate also has the problem of insufficient contact surface between the plate surface and the bone. For this reason, a metal bone plate with stable bone connection is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that current bone plates need to be shaped in advance, which results in a certain amount of preparation time for bone plate access, causing delays in patient treatment, and at the same time, the contact surface between the shaped bone plate and the bone is insufficient. The present invention provides a metal bone plate with stable bone setting.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A metal bone plate with stable bone fracture, comprising a first bone plate and a second bone plate arranged symmetrically, wherein an upper docking sleeve and a lower docking sleeve are fixedly installed on the side of the first bone plate and the second bone plate close to each other, the upper docking sleeve is located at the top of the lower docking sleeve, and the axis of the upper docking sleeve is consistent with that of the lower docking sleeve, and two hanging rotating sleeves are fixedly installed on the side of the first bone plate and the second bone plate close to each other, and the hanging rotating sleeves are consistent with the axis of the upper docking sleeve and the lower docking sleeve, and two hanging grooves are provided on the upper docking sleeve and the lower docking sleeve, and four hanging rotating sleeves are rotatably sleeved on the four hanging grooves respectively, and the side walls of the first bone plate and the second bone plate A plurality of first bone screw holes are provided on the upper part, and a flower-shaped positioning groove is provided on one end of the upper docking tube and the lower docking tube on the side close to each other, and the same flower-shaped positioning column is arranged between the two flower-shaped positioning grooves, and a fastening threaded hole is provided on the end of the upper docking tube and the lower docking tube that are away from each other, and a positioning sliding hole is provided on the inner wall of the end where the two fastening threaded holes are close to each other, and the two positioning sliding holes are respectively connected with the inside of the two flower-shaped positioning grooves, and the inside of the fastening threaded holes is screwed with a fastening bolt, and one end of the fastening bolt is fixedly installed with a positioning sliding rod, and one end of the two positioning sliding rods respectively passes through the two positioning sliding holes and the flower-shaped positioning groove in sequence and contacts with the two ends of the flower-shaped positioning column.

[0007] Furthermore, the first bone plate and the second bone plate are sleeved with the same metal sheath, and a plurality of second bone screw holes matching the positions of the first bone screw holes are provided on both sides of the metal sheath, the upper docking sleeve, the lower docking sleeve and the four hanging rotating sleeves are all located inside the metal sheath, and bolt clearance holes are provided on the top and bottom of the metal sheath, and the two fastening bolts are respectively inserted into the two bolt clearance holes.

[0008] Furthermore, bolt washers are provided on the top and bottom of the metal sheath, and the two bolt washers are respectively fixedly sleeved on the inner circles of the two bolt clearance holes, and the two bolt washers are respectively sleeved on the two fastening bolts.

[0009] Furthermore, a plurality of bone screw gaskets are provided on both sides of the metal sheath, and the plurality of bone screw gaskets are respectively fixedly sleeved on the inner circles of the plurality of second bone screw holes.

[0010] Furthermore, metal edgings are fixedly mounted on both sides of the metal sheath, and the two metal edgings are respectively sleeved on the first bone plate and the second bone plate.

[0011] Furthermore, a plurality of evenly distributed first through holes are formed on the side walls of the first bone fracture plate and the second bone fracture plate, and a plurality of second through holes corresponding to the positions of the first through holes are formed on both sides of the metal sheath.

[0012] Furthermore, an inner sleeve is fixedly installed inside each of the second through holes, and both ends of the inner sleeve located at the same position extend to the outside of the first through hole and pass through the two second through holes respectively.

[0013] Furthermore, the length of the flower-shaped positioning groove inside the lower docking tube is slightly greater than the length of the flower-shaped positioning column, and the length of the flower-shaped positioning groove inside the hanging groove is equal to half the length of the flower-shaped positioning column.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention provides an upper docking sleeve and a lower docking sleeve, so that the first bone plate and the second bone plate can be adjusted in angle before the bone setting operation is performed. There is no need to shape the bone plate in advance. The shaping of the bone plate can be completed by the cooperation of the flower-shaped positioning column with the upper docking sleeve and the lower docking sleeve. While ensuring a sufficient bone setting surface, the preparation time before the bone setting operation is greatly shortened, and the treatment process of the patient is accelerated;

[0016] 2. The present invention provides a metal sheath, so that when the fastening bolts and the positioning slide rod are screwed into the upper docking sleeve and the lower docking sleeve, the metal sheath will be synchronously fixed and sheathed on the upper docking sleeve and the first bone plate by the fastening bolts. After the metal bone plate is connected to the patient's body, the metal sheath will make the connection between the first bone plate and the second bone plate more closely fit the patient's bone contact surface, ensuring that the metal bone plate has a sufficient bone connection surface;

[0017] 3. The present invention provides a bolt washer, a bone screw washer and a metal edging, so that the bolt washer can prevent the bolt clearance hole from directly contacting the fastening bolt and causing the edge of the bolt clearance hole to be torn, the bone screw washer can separate the inner circle edge of the second bone screw hole from the bone screw, and the metal edging can completely wrap the two side edges of the metal sheath inside, avoiding the problem of tearing and damage at the corners of the metal sheath, which affects the overall structural strength of the metal sheath;

[0018] 4. The present invention provides the first through hole and the second through hole so that the first through hole on the first bone plate and the second bone plate and the second through hole on the metal sheath correspond to each other. The first through hole and the second through hole make the metal bone plate present a porous structure as a whole, providing a good environment for the growth of bone tissue, facilitating the growth of bone tissue, improving the connection strength between the metal bone plate and the surrounding bone tissue, and preventing the bone plate from loosening after long-term implantation;

[0019] 5. The present invention provides an inner sleeve so that the inner sleeve can lock the two sides of the metal sheath on the side walls of the first bone plate and the second bone plate, thereby preventing the metal sheath from relative slipping with the first bone plate and the second bone plate, and allowing the metal sheath to extend following the relative rotation of the first bone plate and the second bone plate, thereby ensuring the stability of the metal sheath on the first bone plate and the second bone plate;

[0020] 6. The present invention provides a flower-shaped positioning groove so that the length of the lower flower-shaped positioning groove is slightly larger than the length of the flower-shaped positioning column, so that the flower-shaped positioning column can be completely accommodated therein, and the flower-shaped positioning column will not affect the rotation and angle adjustment of the first bone plate and the second bone plate. At the same time, after the flower-shaped positioning column is locked by the positioning slide rod and the fastening bolt, half of the flower-shaped positioning column is respectively inserted into the two flower-shaped positioning grooves, thereby ensuring the force balance of the flower-shaped positioning column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0022] Figure 2 is a schematic diagram of a three-dimensional structure from a second viewing angle of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the first bone fracture plate and the second bone fracture plate of the present invention;

[0024] Figure 4 The present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the first bone fracture plate and the second bone fracture plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper docking tube, the lower docking tube and the flower-shaped positioning column of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the fastening bolt and the positioning slide rod of the present invention;

[0028] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the lower docking tube of the present invention;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the metal sheath of the present invention;

[0030] Fig.10 The present invention Fig. 9 Schematic diagram of the structure at B in the middle;

[0031] Figure numerals: 1. first bone plate; 2. second bone plate; 3. upper docking sleeve; 4. lower docking sleeve; 5. hanging sleeve; 6. hanging groove; 7. first bone screw hole; 8. flower-shaped positioning groove; 9. flower-shaped positioning column; 10. fastening threaded hole; 11. positioning slide hole; 12. fastening bolt; 13. positioning slide rod; 14. metal sheath; 15. second bone screw hole; 16. bolt clearance hole; 17. bolt washer; 18. bone screw washer; 19. metal edging; 20. first through hole; 21. second through hole; 22. inner sleeve. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] like Figures 1 to 8 As shown, a metal bone plate for stable bone fixation includes a first bone plate 1 and a second bone plate 2 which are symmetrically arranged. Figure 3 As shown, the first bone plate 1 and the second bone plate 2 are respectively fixedly mounted with an upper docking sleeve 3 and a lower docking sleeve 4 on one side close to each other, the upper docking sleeve 3 is located on the top of the lower docking sleeve 4, and the axis of the upper docking sleeve 3 is consistent with that of the lower docking sleeve 4, as shown in FIG. Figure 5As shown, two hanging sleeves 5 are fixedly installed on the side of the first bone plate 1 and the second bone plate 2 close to each other, and the hanging sleeve 5 is consistent with the axis of the upper docking tube 3 and the lower docking tube 4. Two hanging grooves 6 are provided on the upper docking tube 3 and the lower docking tube 4. The four hanging sleeves 5 are rotatably sleeved on the four hanging grooves 6 respectively. In this embodiment, the four hanging sleeves 5 are evenly distributed from top to bottom. The hanging sleeve 5 on the first bone plate 1 is sleeved on the hanging groove 6 on the lower docking tube 4, and the hanging sleeve 5 on the second bone plate 2 is sleeved on the hanging groove 6 on the upper docking tube 3, so that the first bone plate 1 and the second bone plate 2 are hinged together, as shown in FIG. Figure 3 As shown, a plurality of first bone screw holes 7 are provided on the side walls of the first bone plate 1 and the second bone plate 2. Figure 6 As shown, the upper docking tube 3 and the lower docking tube 4 are both provided with a flower-shaped positioning groove 8 at one end close to each other. In this embodiment, the bottom end of the upper docking tube 3 and the top end of the lower docking tube 4 are in contact with each other and both have a flower-shaped positioning groove 8. The same flower-shaped positioning column 9 is provided between the two flower-shaped positioning grooves 8. Figure 8 As shown, the ends of the upper docking tube 3 and the lower docking tube 4 that are away from each other are each provided with a fastening threaded hole 10, and the inner walls of the ends of the two fastening threaded holes 10 that are close to each other are each provided with a positioning slide hole 11, and the two positioning slide holes 11 are respectively connected to the inside of the two flower-shaped positioning grooves 8, as shown in FIG. Figure 4 , Figure 7As shown, the interior of the fastening threaded hole 10 is threaded with a fastening bolt 12, and one end of the fastening bolt 12 is fixedly installed with a positioning slide bar 13, one end of the two positioning slide bars 13 respectively passes through the two positioning slide holes 11 and the flower-shaped positioning groove 8 in sequence and contacts with the two ends of the flower-shaped positioning column 9. In this embodiment, the inner diameter of the positioning slide hole 11 is smaller than the minor diameter of the fastening threaded hole 10 and the inner diameter of the flower-shaped positioning groove 8; specifically, when the metal bone plate with stable bone setting is used, the curvature of the bone setting surface of the patient's bone is first determined, and then the first bone plate 1 and the second bone plate 2 are rotated, and the first bone plate 1 and the second bone plate 2 are made to have a suitable angle with the help of an angle measuring tool such as a dividing ruler or a dividing instrument. At this time, a positioning slide bar 13 is inserted into the interior of the lower docking tube 4 from below until the fastening bolt 12 contacts the fastening threaded hole 10, and then the fastening The fixing bolt 12 is screwed into the fastening threaded hole 10, so that one end of the positioning slide rod 13 contacts the bottom end of the flower-shaped positioning column 9 and lifts up the flower-shaped positioning column 9, so that the flower-shaped positioning column 9 slides upward from the flower-shaped positioning groove 8 inside the lower docking tube 4 to the flower-shaped positioning groove 8 inside the upper docking tube 3, so that the upper docking tube 3 and the lower docking tube 4 are locked together by the flower-shaped positioning column 9 without relative rotation. At this time, the docking tube 3 and the positioning slide rod 13 of another second bone plate 2 are screwed into the interior of the upper docking tube 3, the flower-shaped positioning column 9 is fixed, and the angles of the first bone plate 1 and the second bone plate 2 are locked. Finally, the bone setting operation is performed, and the first bone screw holes 7 on the first bone screw holes 7 on the second bone plate 1 and the second bone plate 2 are used to fix the first bone plate 1 and the second bone plate 2 to the patient's bones without the need to shape the bone plates in advance.

[0037] like Figure 1 , Figure 2 As shown, the first bone plate 1 and the second bone plate 2 are sleeved with the same metal sheath 14. Fig. 9 As shown, a plurality of second bone screw holes 15 are provided on both sides of the metal sheath 14 to match the positions of the first bone screw holes 7. The upper docking sleeve 3, the lower docking sleeve 4 and the four hanging rotating sleeves 5 are all located inside the metal sheath 14. Fig.10As shown, the top and bottom of the metal sheath 14 are provided with bolt clearance holes 16, and the two fastening bolts 12 are respectively inserted into the inside of the two bolt clearance holes 16. In this embodiment, the metal sheath 14 is made of metal foil with a certain ductility, such as titanium alloy foil; specifically, the shaping of the bone plate can be completed by the cooperation of the flower-shaped positioning column 9 with the upper docking sleeve 3 and the lower docking sleeve 4. While ensuring sufficient bone fracture surface, the preparation time before the bone fracture surgery is greatly shortened, and the treatment process of the patient is accelerated. By setting the metal sheath 14, when the first bone fracture plate 1 and the second bone fracture plate 2 are rotated, the sleeved metal sheath 14 They will extend synchronously. When the fastening bolt 12 and the positioning slide bar 13 are screwed into the upper docking tube 3 and the lower docking tube 4, the positioning slide bar 13 and the fastening bolt 12 will successively pass through the bolt clearance holes 16 on the upper and lower sides of the metal sheath 14. As the fastening bolt 12 is tightened, the metal sheath 14 will be synchronously fixed and sleeved on the upper docking tube 3 and the first bone plate 1 by the fastening bolt 12. After the first bone plate 1 and the second bone plate 2 are connected to the patient's body, the metal sheath 14 will make the connection between the first bone plate 1 and the second bone plate 2 fit more closely with the patient's bone contact surface, ensuring that the metal bone plate has sufficient bone fracture surface.

[0038] like Fig.10 As shown, bolt washers 17 are provided at the top and bottom of the metal sheath 14, and the two bolt washers 17 are respectively fixedly sleeved on the inner circles of the two bolt clearance holes 16, and the two bolt washers 17 are respectively sleeved on the two fastening bolts 12; specifically, by providing the bolt washers 17, the bolt washers 17 sleeved on the inner circles of the bolt clearance holes 16 can separate the edges of the bolt clearance holes 16 from the fastening bolts 12, so as to prevent the bolt clearance holes 16 from directly contacting the fastening bolts 12 or being affected by the spiral action of the fastening bolts 12, thereby causing the edges of the bolt clearance holes 16 to be torn, thereby affecting the overall structural strength of the metal sheath 14.

[0039] like Fig.10 As shown, a plurality of bone screw gaskets 18 are provided on both sides of the metal sheath 14, and the plurality of bone screw gaskets 18 are respectively fixedly sleeved on the inner circles of the plurality of second bone screw holes 15; specifically, by providing the bone screw gaskets 18, when bone screws are inserted into the second bone screw holes 15 on the metal sheath 14 and the first bone screw holes 7 on the first bone plate 1 and the second bone plate 2, the bone screw gaskets 18 can separate the inner circle edges of the second bone screw holes 15 from the bone screws, thereby improving the structural strength of the second bone screw holes 15 and preventing the second bone screw holes 15 from being torn.

[0040] like Fig.10As shown, metal edging 19 is fixedly installed on both sides of the metal sheath 14, and the two metal edgings 19 are respectively sleeved on the first bone plate 1 and the second bone plate 2; specifically, by setting the metal edging 19, the metal edging 19 can completely wrap the edges of both sides of the metal sheath 14 inside, thereby improving the strength of the corners of the metal sheath 14 and avoiding the problems of tearing and damage at the corners of the metal sheath 14.

[0041] like Figure 4 As shown, a plurality of evenly distributed first through holes 20 are formed on the side walls of the first bone fracture plate 1 and the second bone fracture plate 2. Fig.10 As shown, a plurality of second through holes 21 corresponding to the positions of the first through holes 20 are provided on both sides of the metal sheath 14; specifically, by providing the first through holes 20 and the second through holes 21, the positions of the first through holes 20 on the first bone plate 1 and the second bone plate 2 and the second through holes 21 on the metal sheath 14 correspond to each other, and the first through holes 20 and the second through holes 21 make the metal bone plate as a whole present a porous structure, which provides a good environment for the growth of bone tissue, facilitates the growth of bone tissue, improves the connection strength between the metal bone plate and the surrounding bone tissue, and prevents the bone plate from loosening after long-term implantation.

[0042] like Figure 4 As shown, the inner sleeve 22 is fixedly installed inside the second through hole 21, and both ends of the inner sleeve 22 located at the same place extend to the outside of the first through hole 20 and pass through the two second through holes 21 respectively; specifically, by arranging the inner sleeve 22, the inner sleeve 22 will be stuck in each second through hole 21 on the metal sheath 14, and the two sides of the metal sheath 14 will be locked on the side walls of the first bone plate 1 and the second bone plate 2, preventing the metal sheath 14 from relative slipping with the first bone plate 1 and the second bone plate 2, so that the metal sheath 14 can extend following the relative rotation of the first bone plate 1 and the second bone plate 2, thereby ensuring the stability of the metal sheath 14 being sleeved on the first bone plate 1 and the second bone plate 2.

[0043] like Figure 8 As shown, the length of the flower-shaped positioning groove 8 located inside the lower docking tube 4 is slightly larger than the length of the flower-shaped positioning column 9, and the length of the flower-shaped positioning groove 8 located inside the hanging groove 6 is equal to half the length of the flower-shaped positioning column 9; specifically, the flower-shaped positioning groove 8 located below can accommodate the entire flower-shaped positioning column 9, and its length is slightly larger than the length of the flower-shaped positioning column 9, so that the flower-shaped positioning column 9 can be completely received in the flower-shaped positioning groove 8 below under the action of gravity, so that the flower-shaped positioning column 9 will not affect the rotation and adjustment of the first bone plate 1 and the second bone plate 2. At the same time, after the flower-shaped positioning column 9 is locked by the positioning slide rod 13 and the fastening bolt 12, half of the flower-shaped positioning column 9 is respectively inserted into the two flower-shaped positioning grooves 8, thereby ensuring the force balance of the flower-shaped positioning column 9.

[0044] In summary: when the metal bone plate with stable bone setting is used, the curvature of the bone setting surface of the patient's bone is first determined, and then the first bone plate 1 and the second bone plate 2 are rotated, and the first bone plate 1 and the second bone plate 2 are made to have a suitable angle with the help of angle measuring tools such as a protractor or a protractor. At this time, a positioning slide bar 13 is inserted into the lower docking tube 4 from the bottom until the fastening bolt 12 contacts the fastening threaded hole 10, and then the fastening bolt 12 is screwed into the fastening threaded hole 10, so that one end of the positioning slide bar 13 contacts the bottom end of the flower-shaped positioning column 9 and lifts the flower-shaped positioning column 9, so that the flower-shaped positioning column 9 slides upward from the flower-shaped positioning groove 8 inside the lower docking tube 4 to the flower-shaped positioning groove 8 inside the upper docking tube 3, so that the upper docking tube 3 and the lower docking tube 4 are fixed by the flower-shaped positioning column 9 are locked together without relative rotation. At this time, the docking sleeve 3 and the positioning slide rod 13 on another second bone plate 2 are screwed into the interior of the upper docking sleeve 3, the flower-shaped positioning column 9 is fixed, and the angle of the first bone plate 1 and the second bone plate 2 is locked. Finally, the bone setting operation is performed, and the first bone plate 1 and the second bone plate 2 are fixed to the patient's bones by using bone screws to pass through the first bone screw holes 7 on the first bone plate 1 and the second bone plate 2. There is no need to shape the bone plates in advance. The shaping of the bone plates can be completed by the cooperation of the flower-shaped positioning column 9 with the upper docking sleeve 3 and the lower docking sleeve 4. While ensuring sufficient bone setting surface, the preparation time before the bone setting operation is greatly shortened, and the treatment process of the patient is accelerated. By setting the metal sheath 14 , so that when the first bone plate 1 and the second bone plate 2 are rotated, the sleeved metal sheath 14 will be extended synchronously, and when the fastening bolt 12 and the positioning slide rod 13 are screwed into the upper docking tube 3 and the lower docking tube 4, the positioning slide rod 13 and the fastening bolt 12 will successively pass through the bolt clearance holes 16 on the upper and lower sides of the metal sheath 14. As the fastening bolt 12 is tightened, the metal sheath 14 will be fixedly sleeved on the upper docking tube 3 and the first bone plate 1 by the fastening bolt 12. After the first bone plate 1 and the second bone plate 2 are connected to the patient's body, the metal sheath 14 will make the connection between the first bone plate 1 and the second bone plate 2 fit more closely with the patient's bone contact surface, ensuring that the metal bone plate has sufficient bone fracture surface. By setting the bolt washer 1 7, so that the bolt washer 17 sleeved on the inner circle of the bolt clearance hole 16 can separate the edge of the bolt clearance hole 16 from the fastening bolt 12, to prevent the bolt clearance hole 16 from directly contacting the fastening bolt 12 or being pulled by the spiral action of the fastening bolt 12, causing the edge of the bolt clearance hole 16 to be torn, affecting the overall structural strength of the metal sheath 14, by providing the bone screw washer 18, so that when the second bone screw hole 15 on the metal sheath 14 and the first bone screw hole 7 on the first bone plate 1 and the second bone plate 2 are connected with the bone screw, the bone screw washer 18 can separate the inner circle edge of the second bone screw hole 15 from the bone screw, thereby improving the structural strength of the second bone screw hole 15 and preventing the second bone screw hole 15 from being torn, and by providing the metal edging 19,The metal edging 19 can completely wrap the two side edges of the metal sheath 14 inside, thereby improving the strength of the corners of the metal sheath 14 and avoiding the problem of tearing and damage to the corners of the metal sheath 14. By setting the first through hole 20 and the second through hole 21, the first through hole 20 on the first bone plate 1 and the second bone plate 2 and the second through hole 21 on the metal sheath 14 correspond to each other. The first through hole 20 and the second through hole 21 make the metal bone plate as a whole present a porous structure, providing a good environment for the growth of bone tissue, facilitating the growth of bone tissue, improving the connection strength between the metal bone plate and the surrounding bone tissue, and preventing the bone plate from loosening after long-term implantation. By setting the inner sleeve 22, the inner sleeve 22 will be stuck in each second through hole 21 on the metal sheath 14, locking the two sides of the metal sheath 14 between the first bone plate 1 and On the side wall of the second bone plate 2, the metal sheath 14 is prevented from relative slipping with the first bone plate 1 and the second bone plate 2, so that the metal sheath 14 can extend following the relative rotation of the first bone plate 1 and the second bone plate 2, ensuring the stability of the metal sheath 14 sleeved on the first bone plate 1 and the second bone plate 2. The flower-shaped positioning groove 8 located below can accommodate the entire flower-shaped positioning column 9, and its length is slightly larger than the length of the flower-shaped positioning column 9, so that the flower-shaped positioning column 9 can be completely received in the flower-shaped positioning groove 8 below under the action of gravity, so that the flower-shaped positioning column 9 will not affect the rotation angle adjustment of the first bone plate 1 and the second bone plate 2. At the same time, after the flower-shaped positioning column 9 is locked by the positioning slide bar 13 and the fastening bolt 12, half of the flower-shaped positioning column 9 is respectively inserted into the two flower-shaped positioning grooves 8, ensuring the force balance of the flower-shaped positioning column 9.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal bone plate for stable bone fixation, characterized in that: The invention comprises a first bone fracture plate (1) and a second bone fracture plate (2) which are symmetrically arranged. An upper docking tube (3) and a lower docking tube (4) are fixedly installed on the sides of the first bone fracture plate (1) and the second bone fracture plate (2) which are close to each other. The upper docking tube (3) is located at the top of the lower docking tube (4). The axis of the upper docking tube (3) and the lower docking tube (4) are consistent. Two hanging rotating sleeves (5) are fixedly installed on the sides of the first bone fracture plate (1) and the second bone fracture plate (2) which are close to each other. The hanging rotating sleeves (5) are consistent with the axis of the upper docking tube (3) and the lower docking tube (4). Two hanging grooves (6) are provided on the upper docking tube (3) and the lower docking tube (4). Four hanging rotating sleeves (5) are rotatably sleeved on the four hanging grooves (6) respectively. A plurality of first bone fracture plate (1) and second bone fracture plate (2) are provided on the side walls. A bone screw hole (7), the upper docking tube (3) and the lower docking tube (4) are each provided with a flower-shaped positioning groove (8) at one end on the side close to each other, and a same flower-shaped positioning column (9) is arranged between the two flower-shaped positioning grooves (8), and the upper docking tube (3) and the lower docking tube (4) are each provided with a fastening threaded hole (10) at one end away from each other, and a positioning slide hole (11) is each provided on the inner wall of the end close to each other of the two fastening threaded holes (10), and the two positioning slide holes (11) are respectively connected with the inside of the two flower-shaped positioning grooves (8), and the inside of the fastening threaded hole (10) is screwed with a fastening bolt (12), and one end of the fastening bolt (12) is fixedly installed with a positioning slide rod (13), and one end of the two positioning slide rods (13) respectively passes through the two positioning slide holes (11), the flower-shaped positioning groove (8) and contacts with the two ends of the flower-shaped positioning column (9).

2. A metal bone plate for bone stabilization according to claim 1, characterized in that: The first bone plate (1) and the second bone plate (2) are sleeved with a same metal sheath (14), and a plurality of second bone screw holes (15) are provided on both sides of the metal sheath (14) and are adapted to the positions of the first bone screw holes (7). The upper docking sleeve (3), the lower docking sleeve (4) and the four hanging rotating sleeves (5) are all located inside the metal sheath (14), and bolt clearance holes (16) are provided on the top and bottom of the metal sheath (14), and the two fastening bolts (12) are respectively inserted into the inside of the two bolt clearance holes (16).

3. A metal bone plate for bone stabilization according to claim 2, characterized in that: Bolt washers (17) are provided at the top and bottom of the metal sheath (14), and the two bolt washers (17) are respectively fixedly sleeved on the inner circles of the two bolt clearance holes (16), and the two bolt washers (17) are respectively sleeved on the two fastening bolts (12).

4. The metal bone plate for bone stabilization according to claim 2, characterized in that: A plurality of bone screw gaskets (18) are provided on both sides of the metal sheath (14), and the plurality of bone screw gaskets (18) are respectively fixedly sleeved on the inner circles of the plurality of second bone screw holes (15).

5. The metal bone plate for bone stabilization according to claim 2, characterized in that: Metal edgings (19) are fixedly mounted on both sides of the metal sheath (14), and the two metal edgings (19) are respectively sleeved on the first bone fracture plate (1) and the second bone fracture plate (2).

6. The metal bone plate for bone stabilization according to claim 2, characterized in that: A plurality of evenly distributed first through holes (20) are provided on the side walls of the first bone fracture plate (1) and the second bone fracture plate (2), and a plurality of second through holes (21) corresponding to the positions of the first through holes (20) are provided on both sides of the metal sheath (14).

7. The metal bone plate for bone stabilization according to claim 6, characterized in that: An inner sleeve (22) is fixedly installed inside each of the second through holes (21), and both ends of the inner sleeve (22) located at the same location extend to the outside of the first through hole (20) and respectively pass through the two second through holes (21).

8. The metal bone plate for bone stabilization according to claim 1, characterized in that: The length of the flower-shaped positioning groove (8) located inside the lower docking tube (4) is slightly greater than the length of the flower-shaped positioning column (9), and the length of the flower-shaped positioning groove (8) located inside the hanging groove (6) is equal to half the length of the flower-shaped positioning column (9).

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