A split-type elastic pressure-regulating steel plate

Abstract

The present invention discloses a split-type elastic pressure-regulating steel plate, which comprises a steel plate body, a first pressure-regulating device, and a second pressure-regulating device. The first pressure-regulating device is arranged on one side of the steel plate body, and the second pressure-regulating device is arranged on the other side. The first pressure-regulating device is connected to the second pressure-regulating device through a traction rod. At least one of the first pressure-regulating device and the second pressure-regulating device is an elastic pressure-regulating device. Pressure-regulating screw holes are arranged on the steel plate body, and bone screws are installed in the pressure-regulating screw holes. The first pressure-regulating device and the second pressure-regulating device are used to adjust the radial stress of the bone screws in the pressure-regulating screw holes. The present invention is easy to fix and convenient to operate. The steel plate body is fixed on the bone through the bone screws in the fixing screw holes, and the radial stress of the bone screws in the pressure-regulating screw holes is finely adjusted through the elastic pressure-regulating device in the pressure-regulating holes, so as to achieve the regulation of the axial stress at the fracture end, avoid stress shielding at the fracture end, accelerate fracture healing, reduce the incidence of nonunion, delayed union, and refracture after plate removal, and shorten the fracture healing time.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a split elastic pressure-regulating steel plate. Background Art

[0002] Bone fixation plates and fixation nails have been used clinically as internal fixation methods for many years. In the process of clinical treatment, there are many methods for fixing fractures, among which plate fixation is one of the most commonly used methods. Traditional bone fixation plates are fixed to the bones by screws, so that the plates and bones become one. However, in the later stage of fracture repair, due to the stress shielding effect of the plates, appropriate stress stimulation cannot be given to the fracture ends, which is prone to delayed fracture healing, non-union, and slow bone mineralization, limiting its application. Therefore, designing a plate that can adjust the stress size of the fracture ends and promote fracture healing is a difficult problem that needs to be solved in the clinic. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated pressure-regulating steel plate which has a simple structure, is easy to operate, is easy to fix, can provide radial stress stimulation to the fracture end, and accelerates bone healing.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A split elastic pressure-regulating steel plate comprises a steel plate body, a first pressure-regulating device and a second pressure-regulating device. The first pressure-regulating device is arranged on one side of the steel plate body, and the second pressure-regulating device is arranged on the other side. The first pressure-regulating device is connected to the second pressure-regulating device via a traction rod. At least one of the first pressure-regulating device and the second pressure-regulating device is an elastic pressure-regulating device. A pressure-regulating nail hole is arranged on the steel plate body, and a bone screw is installed in the pressure-regulating nail hole. The first pressure-regulating device and the second pressure-regulating device are used to adjust the radial stress of the bone screw in the pressure-regulating nail hole.

[0006] Furthermore, the steel plate body is provided with fixing nail holes, and bone screws are installed in the fixing nail holes and the pressure-adjusting nail holes.

[0007] Further, the first pressure regulating device is a non-elastic pressure regulating device, and the second pressure regulating device is an elastic pressure regulating device; the first pressure regulating device includes a pressure regulating screw hole provided on the steel plate body, a pressure regulating screw in the pressure regulating screw hole, a pressure regulating hole connected to the pressure regulating screw hole, and a pressure regulating sleeve; a pressure regulating column is provided below the first pressure regulating sleeve, the pressure regulating column is located in the first pressure regulating hole, and the first pressure regulating sleeve is connected to the second pressure regulating device through a traction rod; the pressure regulating form of the non-elastic pressure regulating device is one of the following forms:

[0008] ① A special-shaped gasket is mounted on the tail of the pressure-adjusting screw, one end of which is in contact with the first pressure-adjusting column. By changing the length of different special-shaped gaskets, the axial stress of the second pressure-adjusting device along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0009] ② The pressure regulating screw hole is a long pressure regulating hole formed by at least two connected screw holes. A pressure regulating bolt is installed in the long pressure regulating hole, and a second nut is installed on the pressure regulating bolt. The axial stress of the second pressure regulating device along the steel plate body is adjusted according to the different positions of the pressure regulating bolt in the pressure regulating screw hole, and then the axial stress of the fracture end is adjusted.

[0010] ③ The pressure regulating screw is an eccentric shaft. The axial stress of the second pressure regulating device along the steel plate body is adjusted according to the contact position between the eccentric shaft and the first pressure regulating column, and then the axial stress of the fracture end is adjusted.

[0011] ④ The axial stress of the second pressure regulating device along the steel plate body is adjusted by replacing the pressure regulating screws with different tail diameters, and then the axial stress of the fracture end is adjusted.

[0012] ⑤ A first guide post is arranged in the first pressure regulating hole. The axial stress of the second pressure regulating device along the steel plate body is adjusted according to the replacement of the first guide posts with different lengths, and then the axial stress of the fracture end is adjusted.

[0013] ⑥ The first pressure regulating hole is arranged along the axial direction of the steel plate body. The setscrew is threadedly connected to the steel plate body, and the tail of the setscrew abuts against the first pressure regulating column. The thickness of the steel plate at the first pressure regulating hole section is increased. The first pressure regulating hole can protrude from the upper surface of the steel plate body. The axial stress of the second pressure regulating device along the steel plate body is adjusted by adjusting the screwing depth of the setscrew, and then the axial stress of the fracture end is adjusted. A first guide post can also be arranged between the tail of the setscrew and the first pressure regulating column.

[0014] The second pressure regulating device includes a second pressure regulating sleeve connected to the traction rod and a second pressure regulating hole communicated with the pressure regulating screw hole. A second pressure regulating column is arranged below the second pressure regulating sleeve. The second pressure regulating column is located in the second pressure regulating hole. An elastic body II is installed in the second pressure regulating hole. One end of the elastic body II abuts against the bone screw in the pressure regulating screw hole, and the other end abuts against the second pressure regulating column.

[0015] Further, the first pressure regulating device is an elastic pressure regulating device. The first pressure regulating device includes a pressure regulating screw hole arranged on the steel plate body, a pressure regulating screw in the pressure regulating screw hole, a first pressure regulating hole communicated with the pressure regulating screw hole, and a first pressure regulating sleeve. A first pressure regulating column is arranged below the first pressure regulating sleeve. The first pressure regulating column is located in the first pressure regulating hole. The first pressure regulating sleeve is connected to the second pressure regulating device through a traction rod. The pressure regulating form of the elastic pressure regulating device is one of the following forms:

[0016] ① An elastic body I is installed in the first pressure regulating hole. One end of the elastic body I abuts against the first pressure regulating column, and the other end abuts against the pressure regulating screw in the pressure regulating screw hole. The axial stress of the second pressure regulating device along the steel plate body is adjusted by replacing the elastic bodies with different lengths, and then the axial stress of the fracture end is adjusted.

[0017] ② An elastomer I is installed in the first pressure regulating hole. The pressure regulating screw is threadedly connected to the steel plate body, and the tail of the pressure regulating screw abuts against the elastomer. By changing the diameter of the screw tail, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted.

[0018] ③ An elastomer I is installed in the first pressure regulating hole. Elastic bases are fixedly installed at both ends of the elastomer I. Through holes are respectively arranged on the elastic bases. The through holes are arranged along the radial direction of the elastomer. One end of the first pressure regulating hole is set as a blind hole. One end of the elastomer is installed in the blind hole, and the other end abuts against the first pressure regulating column in the first pressure regulating hole. By replacing elastomers with different lengths, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted.

[0019] ④ A setscrew and an elastomer are installed in the first pressure regulating hole. The setscrew is threadedly connected to the steel plate body, and the top end of the setscrew abuts against the elastomer. The thickness of the steel plate at the first pressure regulating hole section is increased. The first pressure regulating hole can protrude from the upper surface of the steel plate body. By adjusting the screwing depth of the setscrew, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted.

[0020] ⑤ Two side pressure regulating holes are arranged on the steel plate body. An elastomer I is installed in the first pressure regulating hole. The side pressure regulating holes are long holes arranged on both sides of the steel plate body and are arranged along the axial direction of the steel plate body. The long holes are at least two communicating screw holes. A sliding baffle is arranged on the steel plate body. Screw holes are arranged at both ends of the sliding baffle, and a sliding column is arranged in the middle. The sliding column abuts against the elastomer I and can slide in the first pressure regulating hole. The pressure regulating bolt and the second nut fix the sliding baffle to the steel plate body through the screw holes. According to different positions of the pressure regulating bolt in the side pressure regulating hole, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted.

[0021] ⑥ An elastomer I is installed in the first pressure regulating hole. An eccentric shaft is installed in the pressure regulating screw hole. One end of the elastomer I abuts against the eccentric shaft, and the other end abuts against the first pressure regulating column. According to the contact position between the eccentric shaft and the elastomer I, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted.

[0022] The second pressure regulating device includes a second pressure regulating sleeve connected to the traction rod and a second pressure regulating hole communicating with the pressure regulating screw hole. A second pressure regulating column is provided below the second pressure regulating sleeve, and the second pressure regulating column is located in the second pressure regulating hole. When the second pressure regulating device is a non-elastic pressure regulating device, a second guide column is installed in the second pressure regulating hole. One end of the second guide column abuts against the bone screw in the pressure regulating screw hole, and the other end abuts against the second pressure regulating column. The second guide column may not be provided in the second pressure regulating hole, and the second pressure regulating column directly abuts against the bone screw in the pressure regulating screw hole. When the second pressure regulating device is an elastic pressure regulating device, an elastic body II is installed in the second pressure regulating hole. One end of the elastic body II abuts against the bone screw in the pressure regulating screw hole, and the other end abuts against the second pressure regulating column.

[0023] Further, a sliding hole is provided on the steel plate body, and the sliding hole communicates with the second pressure regulating hole. A sliding plate is installed in the sliding hole, and a pressure regulating screw hole is provided on the sliding plate. When the second pressure regulating device is a non-elastic pressure regulating device, one end of the guide column abuts against the sliding plate, and the other end abuts against the second pressure regulating column. The second pressure regulating column directly abuts against the sliding plate, or a second guide column may be installed between the second pressure regulating column and the sliding plate. When the second pressure regulating device is an elastic pressure regulating device, one end of the elastic body II abuts against the sliding plate, and the other end abuts against the second pressure regulating column. By adjusting the axial stress of the sliding plate, the radial stress of the bone screw is changed, and thus the axial stress of the fracture end is adjusted.

[0024] Further, the sliding hole is a special-shaped sliding hole, the opening on the upper surface of the steel plate body is larger than the opening on the lower surface, and the axial length of the sliding hole is greater than the axial length of the sliding plate.

[0025] Further, the first pressure regulating device is connected to the second pressure regulating device through a traction rod. A traction hole is provided on the first pressure regulating sleeve. A threaded section is provided on the traction rod. One end of the traction rod passes through the traction hole, and the other end of the traction rod is fixedly installed on the second pressure regulating sleeve through a fixing member. The fixing member is one of a nut I, a bulging part or a fixing clip. When it is a nut I, a threaded section is provided on the traction rod, and a nut I is installed on the threaded section. The nut I is threadedly connected to the traction rod. The traction hole can be set as an open type or a closed type.

[0026] Further, a anti-disengagement plate is provided on the sliding plate. The anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve and the steel plate body are slidably connected. It is set as a strip shape, an interval strip shape or a full plate shape according to the size of the steel plate body covered on its surface. It is set as a half-set or full-set form according to the connection form of the anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve and the steel plate body. When the anti-disengagement plate, the first pressure regulating sleeve and the second pressure regulating sleeve are in a half-set form, both ends are buckled on both sides of the steel plate body, and a long slot hole is provided on the upper surface. When the anti-disengagement plate, the first pressure regulating sleeve and the second pressure regulating sleeve are in a full-set form, long slot holes are provided on both the upper surface and the lower surface. The long slot hole corresponds to the pressure regulating screw hole on the sliding plate, and the radial dimension of the long slot hole is larger than the dimension of the pressure regulating screw hole.

[0027] Furthermore, at least two anti - detachment screws are provided on the steel plate body. The anti - detachment screws are thread - connected to the steel plate body, and the tails of the anti - detachment screws are pressed against the upper surface of the sliding plate to prevent the sliding plate from slipping out.

[0028] Furthermore, one of the first elastic body and the second elastic body is a spring or an elastic capsule. When it is a spring, spring bases are provided at both ends of the spring.

[0029] Furthermore, traction grooves are respectively provided on both sides of the steel plate body. Traction holes are respectively provided on the first pressure - regulating sleeve and the second pressure - regulating sleeve. The traction rod passes through the traction holes and is tightly connected thereto; the traction rod is one of a metal rod or a cable.

[0030] Furthermore, the first pressure - regulating sleeve and the second pressure - regulating sleeve form a pressure - regulating sleeve with an integral structure, and are set as a half - sleeve or a full - sleeve form according to their connection form with the steel plate body. When it is a half - sleeve, both ends of it are buckled on both sides of the steel plate body, and a long slot hole is provided on the upper surface of the pressure - regulating sleeve; when the pressure - regulating sleeve is in the full - sleeve form, long slot holes are provided on both the upper surface and the lower surface of the pressure - regulating sleeve; the long slot holes correspond to the pressure - regulating screw holes of the sliding plate, and the radial dimension of the long slot holes is larger than the dimension of the pressure - regulating screw holes.

[0031] Furthermore, the pressure - regulating screw holes, the first pressure - regulating holes, and the fixing screw holes provided on the steel plate body are one of the following forms:

[0032] ① At least two pressure - regulating screw holes and at least one first pressure - regulating hole are provided at one end of the steel plate body;

[0033] ② Pressure - regulating screw holes and first pressure - regulating holes are provided at both ends of the steel plate body, and the pressure - regulating screw holes and the first pressure - regulating holes are symmetrically arranged on the steel plate body;

[0034] ③ One end of the steel plate body is set as the fixing screw hole end, and the other end is set as the pressure - regulating screw hole end. The end with the fixing screw hole is provided with an anatomical plate that is consistent with the anatomical shape of the joint part of the human limb bones, and at least two pressure - regulating screw holes and at least one first pressure - regulating hole are provided at the pressure - regulating screw hole end.

[0035] Furthermore, the steel plate body is set as a straight - shaped steel plate or an arc - shaped steel plate with a certain radian that is consistent with the bone shape. The upper surface and the lower surface of the steel plate body are radially set as arc surfaces with a certain radian; at least one Kirschner wire hole is provided on the steel plate body for temporarily fixing the bone; grooves can be provided on the lower surfaces on both sides of the steel plate body and the anti - detachment plate.

[0036] The present invention is easy to fix and convenient to operate. The steel plate body in the present invention is fixed on the bone through the bone screws in the fixing screw holes, and the distance between the bone screws in the pressure regulating screw holes and the bone screws in the fixing screw holes is finely adjusted by the elastic pressure regulating device in the pressure regulating hole 1, so as to realize regulating the stress at the fracture end, stimulating the body tissue, forming new bone to achieve the purpose of bone elongation, avoiding stress shielding at the fracture end, accelerating fracture healing, and shortening the wearing time of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic structural diagram of the first embodiment of the present invention;

[0038] Figure 2 is a schematic structural diagram of the second embodiment of the present invention;

[0039] Figure 3 is Figure 2 a schematic structural diagram in the AA direction of

[0040] Figure 4 is a schematic structural diagram of the third embodiment of the present invention;

[0041] Figure 5 is Figure 4 a schematic structural diagram in the BB direction of

[0042] Figure 6 is a schematic structural diagram of the fourth embodiment of the present invention;

[0043] Figure 7 is a schematic structural diagram of the fifth embodiment of the present invention;

[0044] Figure 8 is a schematic structural diagram of the sixth embodiment of the present invention;

[0045] Figure 9 is Figure 8 a schematic structural diagram in the CC direction of;

[0046] Figure 10 is a schematic structural diagram of the seventh embodiment of the present invention;

[0047] Figure 11 is a schematic structural diagram of the eighth embodiment of the present invention;

[0048] Figure 12 is a schematic structural diagram of the ninth embodiment of the present invention;

[0049] Figure 13 is a schematic structural diagram of one of the tenth embodiments of the present invention;

[0050] Figure 14 is a schematic structural diagram of another one of the tenth embodiments of the present invention;

[0051] Figure 15 Schematic diagram of the eleventh embodiment of the present invention;

[0052] Figure 16 Schematic diagram of the twelfth embodiment of the present invention;

[0053] Figure 17 Figure 16 Schematic diagram of the structure in the DD direction;

[0054] Figure 18 Schematic diagram of the thirteenth embodiment of the present invention;

[0055] Figure 19 Schematic diagram of the fourteenth embodiment of the present invention;

[0056] Figure 20 is Figure 19 Schematic diagram of the structure from another angle;

[0057] Figure 21 Schematic diagram of the fifteenth embodiment of the present invention;

[0058] Figure 22 is Figure 21 Schematic diagram of the structure in the EE direction;

[0059] Figure 23 Schematic diagram of the sixteenth embodiment of the present invention;

[0060] Figure 24 is Figure 23 Schematic diagram of the structure in the FF direction;

[0061] Figure 25 Schematic diagram of one structure in the seventeenth embodiment of the present invention;

[0062] Figure 26 is Figure 25 Schematic diagram of the structure in the GG direction;

[0063] Figure 27 Schematic diagram of another structure in the seventeenth embodiment of the present invention;

[0064] Figure 28 is Figure 27 Schematic diagram of the structure in the HH direction;

[0065] Figure 29 Schematic diagram of the eighteenth embodiment of the present invention;

[0066] Figure 30 is Figure 29 Schematic diagram of the structure from another angle;

[0067] Figure 31Schematic structural diagram of the nineteenth embodiment of the present invention;

[0068] Figure 32 is Figure 31 Schematic structural diagram in the JJ direction;

[0069] Figure 33 Schematic structural diagram of the twentieth embodiment of the present invention;

[0070] Figure 34 is Figure 33 Schematic structural diagram in the KK direction;

[0071] Figure 35 Schematic structural diagram of the twenty - first embodiment of the present invention;

[0072] Figure 36 Schematic structural diagram of the twenty - second embodiment of the present invention;

[0073] Figure 37 Schematic structural diagram of the Kirschner wire holes arranged on the steel plate body;

[0074] Figure 38 Schematic structural diagram of the fixing part on the traction rod being a nut and the corresponding traction holes on the pressure regulating sleeve;

[0075] Figure 39 Schematic structural diagram of the fixing part on the traction rod being a bulged part and the corresponding traction holes on the pressure regulating sleeve;

[0076] Figure 40 Schematic structural diagram of the fixing part on the traction rod being a sleeve;

[0077] Figure 41 Schematic structural diagram of the proximal humerus pressure regulating steel plate;

[0078] Figure 42 Schematic structural diagram of the lateral elastic steel plate of the distal fibula;

[0079] Figure 43 Schematic structural diagram of the medial distal humerus pressure regulating steel plate;

[0080] Figure 44 Schematic structural diagram of the lateral distal femur pressure regulating steel plate;

[0081] Figure 45 Schematic structural diagram of the medial distal tibia pressure regulating steel plate;

[0082] Figure 46 Schematic structural diagram of the lateral distal humerus pressure regulating steel plate;

[0083] Figure 47 Schematic structural diagram of the lateral proximal femur elastic steel plate;

[0084] Figure 48 Schematic structural diagram of the anterior lateral pressure regulating steel plate for the distal tibia

[0085] Figure 49 Schematic structural diagram of the volar pressure regulating steel plate for the distal radius

[0086] Figure 50 Schematic structural diagram of the lateral pressure regulating steel plate for the proximal tibia

[0087] Figure 51 Schematic structural diagram of the pressure regulating steel plate for the phalangeal T-plate

[0088] Figure 52 Schematic structural diagram of the dorsal pressure regulating steel plate for the distal radius

[0089] In the figure, 1 - pressure regulating sleeve 1, 2 - fixing screw hole, 3 - traction rod, 4 - steel plate body, 5 - pressure regulating screw hole, 6 - pressure regulating sleeve 2, 7 - pressure regulating hole 1, 8 - nut 1, 9 - spring 1, 10 - pressure regulating screw hole, 11 - pressure regulating screw, 12 - traction groove, 13 - pressure regulating bolt, 14 - nut 2, 15 - special-shaped gasket, 16 - setscrew, 17 - side pressure regulating hole, 18 - sliding baffle, 19 - through hole, 20 - eccentric shaft, 21 - anti-detachment sleeve, 22 - guide groove, 23 - sliding plate, 24 - upper slot hole, 25 - lower slot hole, 26 - anti-detachment screw, 27 - guide post 1, 28 - guide post 2, 29 - bulging part, 30 - Kirschner wire hole, 32 - spring 2, 33 - fixing clip, 34 - sliding hole, 35 - pressure regulating hole 2, 36 - traction hole, 37 - pressure regulating column 1, 38 - pressure regulating column 2. Detailed implementation manners

[0090] The elastomer 1 and elastomer 2 in the present invention are one of a spring and an elastic capsule. When it is a spring, spring bases are arranged at both ends of the spring. In the following embodiments, the elastomer 1 and elastomer 2 are spring 9 and spring 32 respectively.

[0091] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0092] The first embodiment of the present invention is a split-type elastic pressure-regulating steel plate, which includes a steel plate body 4, a first pressure-regulating device, and a second pressure-regulating device. The first pressure-regulating device is arranged on one side of the steel plate body 4, and the second pressure-regulating device is arranged on the other side. The first pressure-regulating device is connected to the second pressure-regulating device through a traction rod 3. At least one of the first pressure-regulating device and the second pressure-regulating device is an elastic pressure-regulating device; pressure-regulating nail holes 5 and fixing nail holes 2 are arranged on the steel plate body 4, and bone screws are installed in both the fixing nail holes 2 and the pressure-regulating nail holes 5. The first pressure-regulating device adjusts the second pressure-regulating device through the traction rod 3, and further adjusts the radial stress of the bone screw in the pressure-regulating nail hole 5.

[0093] As Figure 1 shown, the first pressure-regulating device is a non-elastic pressure-regulating device, and the second pressure-regulating device is an elastic pressure-regulating device; the first pressure-regulating device includes a pressure-regulating screw hole 10 arranged on the steel plate body 4, a pressure-regulating screw 11 in the pressure-regulating screw hole 10, and a first pressure-regulating sleeve 1. The pressure-regulating screw hole 10 can also be set as an oblong hole, and a first pressure-regulating column 37 is installed in the oblong hole. One side of the first pressure-regulating column 37 is a bone screw, and the other side is installed with the pressure-regulating screw 11. A first pressure-regulating column 37 is arranged below the first pressure-regulating sleeve 1. The first pressure-regulating column 37 is located in the pressure-regulating screw hole 10. The first pressure-regulating sleeve 1 is connected to the second pressure-regulating device through a traction rod 3. The pressure-regulating form of the elastic pressure-regulating device is that a special-shaped gasket 15 is sleeved on the tail of the pressure-regulating screw 11. One end of the special-shaped gasket 15 abuts against the first pressure-regulating column 37, and the axial stress of the second pressure-regulating device along the steel plate body 4 is adjusted by replacing the lengths of different special-shaped gaskets 15, so as to adjust the axial stress of the fracture end.

[0094] The second pressure-regulating device includes a second pressure-regulating sleeve 6 connected to the traction rod 3. A second pressure-regulating column 38 is arranged below the second pressure-regulating sleeve 6. The second pressure-regulating column 38 is located in the pressure-regulating nail hole 5. A second spring 32 is installed in the pressure-regulating nail hole 5. One end of the second spring 32 abuts against the bone screw in the pressure-regulating nail hole 5, and the other end abuts against the second pressure-regulating column 38.

[0095] The second embodiment of the present invention, as Figure 2 、 Figure 3As shown, the difference from the first embodiment is that the pressure regulating device 1 includes a pressure regulating screw hole 10 provided on the steel plate body 4, a pressure regulating bolt 13 in the pressure regulating screw hole 10, a first pressure regulating hole 7 communicating with the pressure regulating screw hole 10, and a first pressure regulating sleeve 1. A first pressure regulating column 37 is provided below the first pressure regulating sleeve 1. The first pressure regulating column 37 is located in the first pressure regulating hole 7. The first pressure regulating sleeve 1 is connected to the pressure regulating device 2 through a traction rod 3. In this embodiment, the pressure regulating form of the elastic pressure regulating device is that the pressure regulating screw hole 5 is a pressure regulating long hole formed by at least two connected screw holes. A pressure regulating bolt 13 is installed in the pressure regulating long hole, and a second nut 14 is installed on the pressure regulating bolt 13. The axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted according to the different positions of the pressure regulating bolt 13 in the pressure regulating screw hole 10, and then the axial stress of the fracture end is adjusted.

[0096] The third embodiment of the present invention is as Figure 4 、 Figure 5 As shown, the difference from the first embodiment is that in this embodiment, the pressure regulating screw 11 is replaced with an eccentric shaft 20. The axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted according to the contact position between the eccentric shaft 20 and the first pressure regulating column 37, and then the axial stress of the fracture end is adjusted.

[0097] The fourth embodiment of the present invention is as Figure 6 As shown, the difference from the first embodiment is that in this embodiment, according to different fracture types, the axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted by replacing the pressure regulating screws 11 with different tail diameters, and then the axial stress of the fracture end is adjusted.

[0098] The fifth embodiment of the present invention is as Figure 7 As shown, the difference from the first embodiment is that in this embodiment, a first guide post 27 is provided in the first pressure regulating hole 7. The axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted by replacing the first guide posts 27 with different lengths, and then the axial stress of the fracture end is adjusted.

[0099] The sixth embodiment of the present invention is as Figure 8 、 9 As shown, the difference from the first embodiment is that in this embodiment, the first pressure regulating hole 7 is arranged along the axial direction of the steel plate body. The setscrew 16 is threadedly connected to the steel plate body 4. The tail of the setscrew 16 abuts against the first pressure regulating column 27. The thickness of the steel plate at the section of the first pressure regulating hole 7 is increased. The first pressure regulating hole 7 can protrude from the upper surface of the steel plate body 4. The axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted by adjusting the screwing depth of the setscrew 16, and then the axial stress of the fracture end is adjusted. A first guide post 27 can also be arranged between the tail of the setscrew 16 and the first pressure regulating column 37.

[0100] The seventh embodiment of the present invention is as Figure 10As shown, the difference from the first embodiment is that the first pressure regulating device is an elastic pressure regulating device. The first pressure regulating device includes a pressure regulating screw hole 10 provided on the steel plate body 4, a pressure regulating screw 11 in the pressure regulating screw hole 10, a first pressure regulating hole 7 communicating with the pressure regulating screw hole 10, and a first pressure regulating sleeve 1. A first pressure regulating column 37 is provided below the first pressure regulating sleeve 1. The first pressure regulating column 37 is located in the first pressure regulating hole 7. The first pressure regulating sleeve 1 is connected to the second pressure regulating device through a traction rod 3. In this embodiment, the pressure regulating form of the elastic pressure regulating device is that a first spring 9 is installed in the first pressure regulating hole 7. One end of the first spring 9 abuts against the first pressure regulating column 37, and the other end abuts against the pressure regulating screw 11 in the pressure regulating screw hole 10. By replacing the first spring 9 with different lengths, the radial stress of the pressure regulating screw 11 is adjusted, and the axial stress of the second pressure regulating device is changed through the traction rod 3, thereby adjusting the axial stress of the fracture end.

[0101] The second pressure regulating device is a non-elastic pressure regulating device, including a second pressure regulating sleeve 6 connected to the traction rod 3 and a second pressure regulating hole 35 communicating with the pressure regulating screw hole 5. A second pressure regulating column 38 is provided below the second pressure regulating sleeve 6. The second pressure regulating column 38 is located in the pressure regulating screw hole 5. A second guide column 28 is installed in the second pressure regulating hole 35. One end of the second guide column 28 abuts against the bone screw in the pressure regulating screw hole 5, and the other end abuts against the second pressure regulating column 38. The second guide column 28 may not be provided.

[0102] The eighth embodiment of the present invention is as Figure 11 shown. The difference from the seventh embodiment is that the second pressure regulating device is an elastic pressure regulating device. A second spring 32 is installed in the second pressure regulating hole 35. One end of the second spring 32 abuts against the bone screw in the pressure regulating screw hole 5, and the other end abuts against the second pressure regulating column 38.

[0103] The ninth embodiment of the present invention is different from the eighth embodiment in that more than one second pressure regulating sleeve 6 may be provided on the traction rod 3. A second pressure regulating column 38 is provided below each second pressure regulating sleeve 6. The second pressure regulating columns 38 are respectively located in different second pressure regulating holes 35. A second spring 32 is installed in each second pressure regulating hole 35. One end of the second spring 32 abuts against the bone screw in the pressure regulating screw hole 5, and the other end abuts against the second pressure regulating column 38. As Figure 12 shown, three second pressure regulating sleeves 6 are provided on the traction rod 3.

[0104] The tenth embodiment of the present invention is different from the ninth embodiment in that when a plurality of pressure regulating screw holes 10 are provided on the steel plate body 4, the first pressure regulating holes 7 communicating with the pressure regulating screw holes 10 may be provided at different pressure regulating screw holes 10. As Figure 13 shown, it may communicate with the third pressure regulating screw hole 10. As Figure 14 shown, it may also communicate with the fourth pressure regulating screw hole 10.

[0105] The eleventh embodiment of the present invention is different from the ninth embodiment in that, as Figure 15 shown, a first spring 9 is installed in the first pressure regulating hole 7. Elastic bases are fixedly installed at both ends of the first spring 9. Through holes 19 are respectively arranged on the elastic bases. The through holes 19 are arranged along the radial direction of the first spring 9. One end of the first pressure regulating hole 7 is a blind hole. One end of the elastic body is installed in the blind hole, and the other end abuts against the first pressure regulating column 37 in the pressure regulating screw hole 10. By replacing the first spring 9 with different lengths, the axial stress of the pressure regulating device two along the steel plate body 4 is adjusted, and thus the axial stress of the fracture end is adjusted.

[0106] The twelfth embodiment of the present invention, as Figure 16 、 17 shown, is different from the ninth embodiment in that a set screw 16 and a first spring 9 are installed in the first pressure regulating hole 7. The set screw 16 is in threaded connection with the steel plate body 4. The top end of the set screw 16 abuts against the first spring 9. The thickness of the steel plate at the section of the first pressure regulating hole 7 is increased. The first pressure regulating hole 7 can protrude from the upper surface of the steel plate body 4. One end of the first spring 9 abuts against the set screw 16, and the other end abuts against the first pressure regulating column 37. By adjusting the screwing depth of the set screw 16, the radial stress of the bone screw in the pressure regulating screw hole 5 is adjusted, and thus the axial stress of the fracture end is adjusted.

[0107] The thirteenth embodiment of the present invention, as Figure 18 shown, is different from the ninth embodiment in that a second pressure regulating hole 35 communicating therewith is arranged on one side of the pressure regulating screw hole 5. A second spring 32 is installed in the second pressure regulating hole 35. One end of the second spring 32 abuts against the bone screw in the pressure regulating screw hole 5, and the other end abuts against the second pressure regulating column 38.

[0108] Traction grooves 12 are respectively arranged on both sides of the steel plate body 4. Traction holes 36 are respectively arranged on the first pressure regulating sleeve 1 and the second pressure regulating sleeve 6. The traction rod 3 passes through the traction holes 36 and is fixedly connected thereto; in this embodiment, it is fixedly connected by a first nut 8; the traction rod 3 is one of a metal rod or a cable.

[0109] The fourteenth embodiment of the present invention, as Figure 19 、 20As shown, the difference from the ninth embodiment is that two side pressure regulating holes 17 are provided on the steel plate body 4. A first spring 9 is installed in the first pressure regulating hole 7. The side pressure regulating holes 17 are long holes provided on both sides of the steel plate body 4 and are arranged along the axial direction of the steel plate body 4. The long holes are at least two connected screw holes. A sliding baffle 18 is provided on the steel plate body 4. The two ends of the sliding baffle 18 are provided with screw holes and a sliding column is arranged in the middle. The sliding column abuts against the first spring 9 and can slide in the first pressure regulating hole 7. The pressure regulating bolt 13 and the second nut 14 fix the sliding baffle 18 to the steel plate body 4 through the screw holes. The radial stress of the pressure regulating screw 11 is adjusted according to the different positions of the pressure regulating bolt 13 in the side pressure regulating hole 17, and then the axial stress of the fracture end is adjusted.

[0110] The fifteenth embodiment of the present invention is as Figure 21 、 22 shown. The difference from the first embodiment is that the first pressure regulating column 37 on the first pressure regulating sleeve 1 is installed on the right side of the third fixing screw hole 2. The second pressure regulating sleeve 6 is in the form of a half sleeve, and its two ends are buckled on both sides of the steel plate body 4. A long slot hole formed upper slot hole 24 is provided on the upper surface of the second pressure regulating sleeve 6. The upper slot hole 24 corresponds to the pressure regulating screw hole 5, and the radial dimension of the upper slot hole 24 is larger than the dimension of the pressure regulating screw hole 5.

[0111] The sixteenth embodiment of the present invention is as Figure 23 、 24 shown. The difference from the fifteenth embodiment is that the second pressure regulating sleeve 6 is in the form of a full sleeve. When the pressure regulating sleeve is in the form of a full sleeve, upper slot holes 24 formed by long slot holes and lower slot holes 25 are respectively provided on the upper surface and the lower surface of the pressure regulating sleeve; both the upper slot hole 24 and the lower slot hole 25 correspond to the pressure regulating screw hole 5, and the radial dimensions of the upper slot hole 24 and the lower slot hole 25 are larger than the dimension of the pressure regulating screw hole 5.

[0112] The seventeenth embodiment of the present invention is different from the first embodiment in that the first pressure regulating sleeve 1 and the second pressure regulating sleeve 6 are a pressure regulating sleeve formed by an integral structure, and are set to be in the form of a half sleeve or a full sleeve according to the connection form with the steel plate body 4. When it is a half sleeve, as Figure 25 、 26 shown, its two ends are buckled on both sides of the steel plate body 4, and an upper slot hole 24 formed by a long slot hole is provided on the upper surface of the pressure regulating sleeve; as Figure 27 、 28 shown, when the pressure regulating sleeve is in the form of a full sleeve, upper slot holes 24 formed by long slot holes and lower slot holes 25 are respectively provided on the upper surface and the lower surface of the pressure regulating sleeve; the upper slot hole 24 and the lower slot hole 25 correspond to the pressure regulating screw hole 5, and the radial dimension is larger than the dimension of the pressure regulating screw hole 5.

[0113] The eighteenth embodiment of the present invention is as Figure 29 、 30As shown, the difference from the tenth embodiment is that a sliding hole 34 is provided on the steel plate body 4. The sliding hole 34 communicates with the second pressure regulating hole 35. A sliding plate 23 is installed in the sliding hole 34. A pressure regulating screw hole 5 is provided on the sliding plate 23. A second spring 32 is installed in the second pressure regulating hole 35. One end of the second spring 32 abuts against the sliding plate 23, and the other end abuts against the second pressure regulating column 38. By adjusting the axial stress of the sliding plate 23, the radial stress of the bone screw is changed, and thus the axial stress of the fracture end is adjusted.

[0114] As a further optimization of this embodiment, the sliding hole 34 is a special-shaped sliding hole 34. The opening on the upper surface of the steel plate body 4 is larger than the opening on the lower surface. The axial length of the sliding hole 34 is greater than the axial length of the sliding plate 23. A anti-disengagement plate 21 is provided on the sliding plate 23, which is in the form of a strip according to the size of the surface covering the steel plate body 4. When the first pressure regulating sleeve 1, the second pressure regulating sleeve 6, and the anti-disengagement plate 21 are in the form of a strip or a semi-sleeve, guide grooves 22 can be symmetrically provided on both sides of the lower surface of the steel plate body 4. The setting of the guide grooves 22 facilitates the axial sliding of the first pressure regulating sleeve 1, the second pressure regulating sleeve 6, and the anti-disengagement plate 21 along the steel plate body 4. In this embodiment, the anti-disengagement plate 21 is in the form of a strip.

[0115] The nineteenth embodiment of the present invention, as Figure 31 , 32 As shown, the difference from the eighteenth embodiment is that the anti-disengagement plate 21 is set in the form of a semi-sleeve. Its two ends are buckled on both sides of the steel plate body 4. Upper slot holes 24 formed by long slot holes are provided on the upper surface. The upper slot holes 24 correspond to the pressure regulating screw holes 5, and the radial dimension of the upper slot holes 24 is larger than the dimension of the pressure regulating screw holes 5.

[0116] The twentieth embodiment of the present invention, as Figure 33 , 34 As shown, the difference from the nineteenth embodiment is that the anti-disengagement plate 21 is set in the form of a full sleeve. Upper slot holes 24 and lower slot holes 25 formed by long slot holes are respectively provided on its upper surface and lower surface. The upper slot holes 24 and the lower slot holes 25 both correspond to the pressure regulating screw holes 5.

[0117] The twenty-first embodiment of the present invention, as Figure 35 As shown, the difference from the eighteenth embodiment is that the strip-shaped anti-disengagement plate 21 is replaced with at least two anti-disengagement screws 26. The anti-disengagement screws 26 are threadedly connected to the steel plate body 4. The tails of the anti-disengagement screws 26 are pressed on the upper surface of the sliding plate 23 to prevent the sliding plate 23 from disengaging from the steel plate body 4.

[0118] The twenty-second embodiment of the present invention, as Figure 36 As shown, the steel plate body 4 is an arc-shaped steel plate that is consistent with the bone shape and has a certain curvature. The upper surface and the lower surface of the steel plate body 4 are radially provided with arc surfaces with a certain curvature; as Figure 37As shown, the steel plate body 4 is provided with at least one Kirschner wire hole 30 for temporarily fixing bones; grooves may be provided on the lower surfaces of both sides of the steel plate body 4 and the anti-detachment plate 21. As Figure 41 - Figure 52 shown, one end of the steel plate body 4 may be set as an anatomical steel plate that is consistent with the anatomical shape of the human bone and has a certain curvature. Such as: proximal humeral pressure-regulating steel plate, distal fibular lateral elastic steel plate, distal humeral medial pressure-regulating steel plate, distal femoral lateral pressure-regulating steel plate, distal tibial medial pressure-regulating steel plate, distal humeral lateral pressure-regulating steel plate, proximal femoral lateral elastic steel plate, anterior lateral distal tibial pressure-regulating steel plate, palmar distal radius pressure-regulating steel plate, proximal tibial lateral pressure-regulating steel plate, phalanx T-shaped plate pressure-regulating steel plate, dorsal distal radius pressure-regulating steel plate, etc.

[0119] As a further deformation of the present invention, the pressure-regulating nail holes 5, the first pressure-regulating holes 7, and the fixing nail holes 2 provided on the steel plate body 4 have one of the following forms:

[0120] ① At least two pressure-regulating nail holes 5 and at least one first pressure-regulating hole 7 are provided at one end of the steel plate body 4.

[0121] ② Both ends of the steel plate body 4 are set as pressure-regulating nail holes 5 and first pressure-regulating holes 7, and the pressure-regulating nail holes 5 and the first pressure-regulating holes 7 are symmetrically arranged on the steel plate body 4.

[0122] ③ One end of the steel plate body 4 is set as the end with the fixing nail hole 2, and the other end is set as the end with the pressure-regulating nail hole 5. One end of the fixing nail hole 2 is set as an anatomical plate that is consistent with the anatomical shape of the joint part of the human limb bone, and at least two pressure-regulating nail holes 5 and at least one first pressure-regulating hole 7 are provided at the end with the pressure-regulating nail hole 5.

[0123] As a further optimization of the present invention, as Figure 38 、 39 、40 shown, the first pressure-regulating device is connected to the second pressure-regulating device through the traction rod 3. A traction hole 36 is provided on the pressure-regulating sleeve 1. A threaded section is provided on the traction rod 3. One end of the traction rod 3 passes through the traction hole 36, and the other end of the traction rod 3 is fixedly installed on the pressure-regulating sleeve 6 through a fixing member. The fixing member is one of a nut 8, a bulging part 29, or a fixing clip 33. At this time, the traction hole 36 is open; when it is a nut 8, a threaded section is provided on the traction rod 3, and the nut 8 is installed on the threaded section. The nut 8 is threadedly connected to the traction rod 3. At this time, the traction hole 36 is open or closed.

[0124] The above are only the preferred embodiments of the present invention and are not used to limit the embodiments of the present invention. As in Figure 29 、 31 、33、35, if the form of the first pressure-regulating device is replaced with Figure 1 、 2, one of the forms of 4, 6, 7, 8, when a pressure regulating sleeve one is arranged on one side of the steel plate body, changing the form or moving mode of the pressure regulating sleeve one, etc., any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A split-type elastic pressure-regulating steel plate, characterized in that it includes a steel plate body, a first pressure-regulating device, and a second pressure-regulating device. The first pressure-regulating device is arranged on one side of the steel plate body, and the second pressure-regulating device is arranged on the other side. The first pressure-regulating device is connected to the second pressure-regulating device through a traction rod. At least one of the first pressure-regulating device and the second pressure-regulating device is an elastic pressure-regulating device; pressure-regulating screw holes are provided on the steel plate body, and bone screws are installed in the pressure-regulating screw holes. The first pressure-regulating device and the second pressure-regulating device are used to adjust the radial stress of the bone screws in the pressure-regulating screw holes; the first pressure-regulating device is a non-elastic pressure-regulating device, and the second pressure-regulating device is an elastic pressure-regulating device; the first pressure-regulating device includes a pressure-regulating screw hole provided on the steel plate body, a pressure-regulating screw in the pressure-regulating screw hole, a first pressure-regulating hole communicated with the pressure-regulating screw hole, and a first pressure-regulating sleeve. A first pressure-regulating column is arranged below the first pressure-regulating sleeve. The first pressure-regulating column is located in the first pressure-regulating hole. The first pressure-regulating sleeve is connected to the second pressure-regulating device through a traction rod; the pressure-regulating form of the non-elastic pressure-regulating device is one of the following forms: ① An abnormal-shaped gasket is sleeved on the tail of the pressure-regulating screw. One end of the abnormal-shaped gasket abuts against the first pressure-regulating column. By replacing the lengths of different abnormal-shaped gaskets, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ② The pressure-regulating screw hole is a pressure-regulating long hole formed by at least two connected screw holes. A pressure-regulating bolt is installed in the pressure-regulating long hole, and a second nut is installed on the pressure-regulating bolt. According to the different positions of the pressure-regulating bolt in the pressure-regulating screw hole, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ③ The pressure-regulating screw is an eccentric shaft. According to the contact position between the eccentric shaft and the first pressure-regulating column, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ④ By replacing the pressure-regulating screws with different tail diameters, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ⑤ A first guide column is arranged in the first pressure-regulating hole. By replacing the first guide columns with different lengths, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ⑥ The first pressure-regulating hole is arranged along the axial direction of the steel plate body. The steel plate body is threadedly connected with a setscrew. The tail of the setscrew abuts against the first pressure-regulating column. The thickness of the steel plate at the section of the first pressure-regulating hole is increased. The first pressure-regulating hole can protrude from the upper surface of the steel plate body. By adjusting the screwing depth of the setscrew, the axial stress of the second pressure-regulating device along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted. A first guide column can also be arranged between the tail of the setscrew and the first pressure-regulating column; the second pressure-regulating device includes a second pressure-regulating sleeve connected to the traction rod, a second pressure-regulating hole communicated with the pressure-regulating screw hole. A second pressure-regulating column is arranged below the second pressure-regulating sleeve. The second pressure-regulating column is located in the second pressure-regulating hole. An elastic body II is installed in the second pressure-regulating hole. One end of the elastic body II abuts against the bone screw in the pressure-regulating screw hole, and the other end abuts against the second pressure-regulating column.

2. The split-type elastic pressure-regulating steel plate according to claim 1, wherein Fixing screw holes are provided on the steel plate body, and bone screws are installed in both the fixing screw holes and the pressure-regulating screw holes; the elastic body II is one of a spring and an elastic capsule. When it is a spring, spring bases are arranged at both ends of the spring.

3. The split-type elastic pressure-regulating steel plate according to any one of claims 1-2, characterized in that a sliding hole is provided on the steel plate body, the sliding hole is communicated with the second pressure-regulating hole, a sliding plate is installed in the sliding hole, a pressure-regulating screw hole is provided on the sliding plate, one end of the second elastic body abuts against the sliding plate, and the other end abuts against the second pressure-regulating column. By adjusting the axial stress of the sliding plate, the radial stress of the bone screw is changed, and thus the axial stress of the fracture end is adjusted.

4. The split-type elastic pressure-regulating steel plate according to claim 3, characterized in that the sliding hole is a special-shaped sliding hole, the opening on the upper surface of the steel plate body is larger than the opening on the lower surface, and the axial length of the sliding hole is greater than the axial length of the sliding plate.

5. The split-type elastic pressure-regulating steel plate according to claim 4, characterized in that the first pressure-regulating device is connected to the second pressure-regulating device through a traction rod. A traction hole is provided on the first pressure-regulating sleeve. A threaded section is provided on the traction rod. One end of the traction rod passes through the traction hole, and the other end of the traction rod is fixedly installed on the second pressure-regulating sleeve through a fixing member. The fixing member is one of a nut, a bulging part or a fixing clip; when it is a nut, a threaded section is provided on the traction rod, and a nut is installed on the threaded section. The nut is threadedly connected to the traction rod, and the traction hole can be set as an open type or a closed type; when it is one of a bulging part or a fixing clip, the traction hole can be set as an open type.

6. The split-type elastic pressure-regulating steel plate according to claim 5, characterized in that a anti-disengagement plate is provided on the sliding plate. The anti-disengagement plate, the first pressure-regulating sleeve, the second pressure-regulating sleeve are slidably connected to the steel plate body, and are set as strip-shaped, spaced strip-shaped or full-plate-shaped according to the size of the steel plate body covered on its surface; according to the connection form of the anti-disengagement plate, the first pressure-regulating sleeve, the second pressure-regulating sleeve and the steel plate body, it is set as a semi-sleeve or full-sleeve form. When the anti-disengagement plate, the first pressure-regulating sleeve, the second pressure-regulating sleeve are in a semi-sleeve form, both ends are buckled on both sides of the steel plate body, and long slot holes are provided on the upper surface; when the anti-disengagement plate, the first pressure-regulating sleeve, the second pressure-regulating sleeve are in a full-sleeve form, long slot holes are provided on both the upper surface and the lower surface; the long slot holes correspond to the pressure-regulating screw holes of the sliding plate, and the radial dimension of the long slot holes is larger than the dimension of the pressure-regulating screw holes.

7. The split-type elastic pressure-regulating steel plate according to claim 6, characterized in that at least two anti-disengagement screws are provided on the steel plate body. The anti-disengagement screws are threadedly connected to the steel plate body, and the tails of the anti-disengagement screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from disengaging.

8. The split-type elastic pressure-regulating steel plate according to claim 7, characterized in that traction grooves are respectively provided on both sides of the steel plate body. Traction holes are respectively provided on the first pressure-regulating sleeve and the second pressure-regulating sleeve. The traction rod passes through the traction holes and is tightly connected thereto; the traction rod is one of a metal rod or a cable.

9. The split-type elastic pressure-regulating steel plate according to claim 8, characterized in that The pressure regulating sleeve one and the pressure regulating sleeve two form a pressure regulating sleeve with an integral structure, which is set in the form of a semi-sleeve or a full sleeve according to its connection form with the steel plate body. When it is a semi-sleeve, its two ends are buckled on both sides of the steel plate body, and long slot holes are arranged on the upper surface of the pressure regulating sleeve; when the pressure regulating sleeve is in the form of a full sleeve, long slot holes are arranged on both the upper surface and the lower surface of the pressure regulating sleeve; the long slot holes correspond to the sliding plate pressure regulating screw holes, and the radial dimension of the long slot holes is larger than the dimension of the pressure regulating screw holes.

10. The split-type elastic pressure regulating steel plate according to claim 9, characterized in that The pressure regulating screw holes, the first pressure regulating holes and the fixing screw holes arranged on the steel plate body are in one of the following forms: ① At least two pressure regulating screw holes and at least one first pressure regulating hole are arranged at one end of the steel plate body; ② Pressure regulating screw holes and first pressure regulating holes are arranged at both ends of the steel plate body, and the pressure regulating screw holes and the first pressure regulating holes are symmetrically arranged on the steel plate body; ③ One end of the steel plate body is set as the fixing screw hole end, and the other end is set as the pressure regulating screw hole end. The fixing screw hole end is set as an anatomical plate consistent with the anatomical shape of the joint part of the human limb bone, and at least two pressure regulating screw holes and at least one first pressure regulating hole are arranged at the pressure regulating screw hole end.

11. The split-type elastic pressure regulating steel plate according to claim 10, characterized in that The steel plate body is set as a straight steel plate or an arc-shaped steel plate with a certain arc consistent with the bone shape, and the upper surface and the lower surface of the steel plate body are radially set as arc surfaces with a certain arc; at least one Kirschner wire hole is arranged on the steel plate body for temporarily fixing the bone; grooves can be arranged on the lower surfaces on both sides of the steel plate body and the anti-disconnection plate.

12. A split-type elastic pressure-regulating steel plate, characterized in that, It includes a steel plate body, a first pressure regulating device and a second pressure regulating device. A first pressure regulating device is arranged on one side of the steel plate body, and a second pressure regulating device is arranged on the other side. The first pressure regulating device is connected to the second pressure regulating device through a traction rod. At least one of the first pressure regulating device and the second pressure regulating device is an elastic pressure regulating device; pressure regulating screw holes are arranged on the steel plate body, bone screws are installed in the pressure regulating screw holes, and the first pressure regulating device and the second pressure regulating device are used to adjust the radial stress of the bone screws in the pressure regulating screw holes; The first pressure regulating device is an elastic pressure regulating device. The first pressure regulating device includes a pressure regulating screw hole arranged on the steel plate body, a pressure regulating screw in the pressure regulating screw hole, a first pressure regulating hole communicated with the pressure regulating screw hole, and a first pressure regulating sleeve. A first pressure regulating column is arranged below the first pressure regulating sleeve, and the first pressure regulating column is located in the first pressure regulating hole. The first pressure regulating sleeve is connected to the second pressure regulating device through a traction rod. The pressure regulating form of the elastic pressure regulating device is one of the following forms: ① An elastic body one is installed in the first pressure regulating hole. One end of the elastic body one abuts against the first pressure regulating column, and the other end abuts against the pressure regulating screw in the pressure regulating screw hole. By replacing elastic bodies with different lengths, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and further the axial stress of the fracture end is adjusted; ② An elastic body one is installed in the first pressure regulating hole. The pressure regulating screw is threadedly connected to the steel plate body, and the tail of the pressure regulating screw abuts against the elastic body. By changing the diameter of the screw tail, the axial stress of the second pressure regulating device along the steel plate body is adjusted, and further the axial stress of the fracture end is adjusted; ③ An elastomer I is installed in the pressure regulating hole I. Elastic bases are fixedly installed at both ends of the elastomer I. Through holes are respectively arranged on the elastic bases. The through holes are arranged along the radial direction of the elastomer. One end of the pressure regulating hole is set as a blind hole. One end of the elastomer is installed in the blind hole, and the other end abuts against the pressure regulating column I in the pressure regulating hole I. By replacing elastomers with different lengths, the axial stress of the pressure regulating device II along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ④ A setscrew and an elastomer are installed in the pressure regulating hole I. The setscrew is threadedly connected with the steel plate body. The top end of the setscrew abuts against the elastomer. The thickness of the steel plate at the section of the pressure regulating hole I is increased. The pressure regulating hole I can protrude from the upper surface of the steel plate body. By adjusting the screwing depth of the setscrew, the axial stress of the pressure regulating device II along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ⑤ Two side pressure regulating holes are arranged on the steel plate body. An elastomer I is installed in the pressure regulating hole I. The side pressure regulating holes are long holes arranged on both sides of the steel plate body and are arranged along the axial direction of the steel plate body. The long holes are at least two connected screw holes. A sliding baffle is arranged on the steel plate body. Screw holes are arranged at both ends of the sliding baffle, and a sliding column is arranged in the middle. The sliding column abuts against the elastomer I and can slide in the pressure regulating hole I. The pressure regulating bolt and the nut II fix the sliding baffle on the steel plate body through the screw holes. According to different positions of the pressure regulating bolt in the side pressure regulating hole, the axial stress of the pressure regulating device II along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; ⑥ An elastomer I is installed in the pressure regulating hole I. An eccentric shaft is installed in the pressure regulating screw hole. One end of the elastomer I abuts against the eccentric shaft, and the other end abuts against the pressure regulating column I. According to the contact position between the eccentric shaft and the elastomer I, the axial stress of the pressure regulating device II along the steel plate body is adjusted, and thus the axial stress of the fracture end is adjusted; The pressure regulating device II includes a pressure regulating sleeve II connected with the traction rod and a pressure regulating hole II communicated with the pressure regulating screw hole. A pressure regulating column II is arranged below the pressure regulating sleeve II. The pressure regulating column II is located in the pressure regulating hole II. When the pressure regulating device II is a non-elastic pressure regulating device, a guide column II is installed in the pressure regulating hole II. One end of the guide column II abuts against the bone screw in the pressure regulating screw hole, and the other end abuts against the pressure regulating column II. The guide column II may not be arranged in the pressure regulating hole II, and the pressure regulating column II directly abuts against the bone screw in the pressure regulating screw hole; when the pressure regulating device II is an elastic pressure regulating device, an elastomer II is installed in the pressure regulating hole II. One end of the elastomer II abuts against the bone screw in the pressure regulating screw hole, and the other end abuts against the pressure regulating column II.

13. The split elastic pressure-regulating steel plate according to claim 12, wherein Fixing screw holes are arranged on the steel plate body. Bone screws are installed in both the fixing screw holes and the pressure regulating screw holes; The elastomer I and the elastomer II are one of a spring and an elastic capsule. When it is a spring, spring bases are arranged at both ends of the spring.

14. The split-type elastic pressure regulating steel plate according to any one of claims 12 - 13, wherein A sliding hole is provided on the steel plate body. The sliding hole communicates with the second pressure regulating hole. A sliding plate is installed in the sliding hole, and a pressure regulating screw hole is provided on the sliding plate. When the second pressure regulating device is a non-elastic pressure regulating device, one end of the second guide post abuts against the sliding plate, and the other end abuts against the second pressure regulating column. The second pressure regulating column directly abuts against the sliding plate, or a second guide post can also be installed between the second pressure regulating column and the sliding plate. When the second pressure regulating device is an elastic pressure regulating device, one end of the second elastic body abuts against the sliding plate, and the other end abuts against the second pressure regulating column. By adjusting the axial stress of the sliding plate, the radial stress of the bone screw is changed, and then the axial stress of the fracture end is adjusted.

15. The split-type elastic pressure regulating steel plate according to claim 14, wherein The sliding hole is a special-shaped sliding hole. The opening on the upper surface of the steel plate body is larger than the opening on the lower surface, and the axial length of the sliding hole is greater than the axial length of the sliding plate.

16. The split-type elastic pressure regulating steel plate according to claim 15, wherein The first pressure regulating device is connected to the second pressure regulating device through a traction rod. A traction hole is provided on the first pressure regulating sleeve. A threaded section is provided on the traction rod. One end of the traction rod passes through the traction hole, and the other end of the traction rod is fixedly installed on the second pressure regulating sleeve through a fixing member. The fixing member is one of a nut, a bulging part or a fixing clip. When it is a nut, a threaded section is provided on the traction rod, and a nut is installed on the threaded section. The nut is threadedly connected to the traction rod. The traction hole can be set as an open type or a closed type. When it is one of a bulging part or a fixing clip, the traction hole can be set as an open type.

17. The split-type elastic pressure regulating steel plate according to claim 16, wherein An anti-disengagement plate is provided on the sliding plate. The anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve are slidably connected to the steel plate body. According to the size of the steel plate body covered on its surface, it is set as a strip shape, an interval strip shape or a full plate shape. According to the connection form of the anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve and the steel plate body, it is set as a semi-sleeve or a full-sleeve form. When the anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve are in a semi-sleeve form, its two ends are buckled on both sides of the steel plate body, and a long slot hole is provided on the upper surface. When the anti-disengagement plate, the first pressure regulating sleeve, the second pressure regulating sleeve are in a full-sleeve form, long slot holes are provided on both the upper surface and the lower surface. The long slot hole corresponds to the pressure regulating screw hole of the sliding plate, and the radial dimension of the long slot hole is larger than the dimension of the pressure regulating screw hole.

18. The split-type elastic pressure regulating steel plate according to claim 16, wherein At least two anti-disengagement screws are provided on the steel plate body. The anti-disengagement screws are threadedly connected to the steel plate body, and the tails of the anti-disengagement screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from disengaging.

19. The split-type elastic pressure regulating steel plate according to claim 18, wherein Traction grooves are respectively provided on both sides of the steel plate body. Traction holes are respectively provided on the first pressure regulating sleeve and the second pressure regulating sleeve. The traction rod passes through the traction holes and is tightly connected thereto. The traction rod is one of a metal rod or a cable.

20. The split-type elastic pressure regulating steel plate according to claim 19, wherein The pressure regulating sleeve 1 and the pressure regulating sleeve 2 are integrally structured to form a pressure regulating sleeve, which is set in a half-sleeve or full-sleeve form according to its connection form with the steel plate body. When it is a half-sleeve, its two ends are buckled on both sides of the steel plate body, and long slot holes are provided on the upper surface of the pressure regulating sleeve; when the pressure regulating sleeve is in the full-sleeve form, long slot holes are provided on both the upper surface and the lower surface of the pressure regulating sleeve; the long slot holes correspond to the sliding plate pressure regulating screw holes, and the radial dimension of the long slot holes is larger than the dimension of the pressure regulating screw holes.

21. The split-type elastic pressure regulating steel plate according to claim 20, wherein the pressure regulating screw holes, the first pressure regulating holes, and the fixing screw holes provided on the steel plate body are in one of the following forms: ① At least two pressure regulating screw holes and at least one first pressure regulating hole are provided at one end of the steel plate body; ② Pressure regulating screw holes and first pressure regulating holes are provided at both ends of the steel plate body, and the pressure regulating screw holes and the first pressure regulating holes are symmetrically arranged on the steel plate body; ③ One end of the steel plate body is set as the fixing screw hole end, and the other end is set as the pressure regulating screw hole end. The fixing screw hole end is provided with an anatomical plate that is consistent with the anatomical shape of the joint part of the human limb bone, and at least two pressure regulating screw holes and at least one first pressure regulating hole are provided at the pressure regulating screw hole end.

22. The split-type elastic pressure regulating steel plate according to claim 21, wherein the steel plate body is set as a straight steel plate or an arc-shaped steel plate with a certain arc consistent with the bone shape, and the upper surface and the lower surface of the steel plate body are radially set as arc surfaces with a certain arc; at least one Kirschner wire hole is provided on the steel plate body for temporarily fixing the bone; grooves can be provided on the lower surfaces on both sides of the steel plate body and the anti-disengagement plate.

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