A top pressure regulating steel plate

Abstract

The present invention discloses a top pressure-regulating steel plate, comprising a steel plate body, a first pressure-regulating device, and a second pressure-regulating device. The top of the steel plate body is provided with the first pressure-regulating device, and the other end is provided with the second pressure-regulating device. The first pressure-regulating device is connected to the second pressure-regulating device through a traction rod. The steel plate body is provided with a pressure-regulating nail hole, 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. The present invention is easy to fix and convenient to operate. The steel plate body of the present invention is fixed to the bone through the bone screw in the fixing nail hole, and the distance between the bone screw in the pressure-regulating nail hole and the bone screw in the fixing nail hole is fine-tuned by the elastic pressure-regulating device in the pressure-regulating hole, so as to achieve the purpose of regulating the stress of the fracture end, stimulating the body tissue to form new bone, so as to achieve the purpose of promoting fracture healing, avoiding stress shielding of the fracture end, accelerating fracture healing, and shortening the fixing time of the steel plate.

Description

Technical Field

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

[0002] Bone plates and bone screws have been used as internal fixation methods in clinical practice 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 plates are fixed to bones by bone 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 plate, it is impossible to give appropriate stress stimulation to the fracture end, 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 end 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 a top pressure regulating steel plate which has a simple structure, is convenient to operate, is easy to fix, can provide axial stress stimulation to the fracture end, and accelerates the healing of the fracture.

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

[0005] A top 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 at the top of the steel plate body, and the second pressure-regulating device is arranged at the other end. The first pressure-regulating device is connected to the second pressure-regulating device via a traction rod. 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 for adjusting 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] 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 first pressure regulating sleeve located at the top of the steel plate body, the first pressure regulating sleeve is provided with a pressure regulating screw hole, a pressure regulating member is installed in the pressure regulating screw 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 The pressure regulating member is a pressure regulating screw, and a special-shaped gasket is mounted on the tail of the pressure regulating screw. One end of the special-shaped gasket abuts against the top of the steel plate body. By changing the length of different special-shaped gaskets, the axial stress of the pressure regulating device along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0009] ② The pressure regulating member is a pressure regulating bolt, and the pressure regulating screw hole is a pressure regulating long hole formed by at least two connected screw holes, in which a pressure regulating bolt and a guide column are installed, and a nut is installed on the pressure regulating bolt, one end of the guide column abuts against the pressure regulating bolt, and the other end abuts against the top of the steel plate body, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the different positions of the pressure regulating bolt in the pressure regulating screw hole, thereby adjusting the axial stress of the fracture end;

[0010] ③ The pressure regulating member is an eccentric shaft, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the contact position between the eccentric shaft and the top of the steel plate body, thereby adjusting the axial stress of the fracture end;

[0011] ④ The pressure regulating member is a pressure regulating screw, and the axial stress of the pressure regulating device along the steel plate body is adjusted by replacing the pressure regulating screws with different tail diameters, thereby adjusting the axial stress of the fracture end;

[0012] ⑤ The pressure regulating member is a guide column 1, the pressure regulating screw hole is arranged along the axial direction of the steel plate body, a blind hole is arranged at one end away from the steel plate body, the guide column 1 is located in the pressure regulating screw hole, one end of the guide column 1 abuts against the top of the steel plate body 1, and the other end is located in the blind hole. By replacing the guide column 1 of different lengths, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0013] ⑥ The pressure regulating member is a top screw, the pressure regulating screw hole is arranged along the axial direction of the steel plate body, the top screw is threadedly connected to the pressure regulating sleeve 1, the top of the top screw abuts against one end of the steel plate body, the thickness of the pressure regulating screw hole is thickened, and the pressure regulating screw hole can protrude from the upper surface of the pressure regulating sleeve 1. By adjusting the depth of the top screw screwing in, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0014] The second pressure regulating device includes a second pressure regulating sleeve connected to the traction rod, a pressure regulating column is arranged below the second pressure regulating sleeve, the pressure regulating column is located in the second pressure regulating hole, an elastomer is installed in the second pressure regulating hole, one end of the second elastomer abuts against the bone screw in the pressure regulating nail hole, and the other end abuts against the pressure regulating column.

[0015] The first pressure regulating device is an elastic pressure regulating device, and the first pressure regulating device includes a pressure regulating sleeve at the top of the steel plate body, the first pressure regulating sleeve is provided with a pressure regulating screw hole, a pressure regulating member is installed in the pressure regulating screw hole, the first pressure regulating sleeve is connected to the second pressure regulating device through a traction rod, and the pressure regulating form of the elastic pressure regulating device is one of the following forms:

[0016] ① The pressure regulating member is a pressure regulating screw, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, and an elastic body 1 is installed in the pressure regulating hole 1, and one end of the elastic body 1 abuts against the steel plate body, and the other end abuts against the pressure regulating screw in the pressure regulating screw hole. By replacing elastic bodies of different lengths, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0017] ② The pressure regulating member is a pressure regulating screw, one side of the pressure regulating screw hole is provided with a pressure regulating hole 1 connected thereto, an elastic body 1 is installed in the pressure regulating hole 1, the pressure regulating screw is threadedly connected to a pressure regulating sleeve 1, the tail of the pressure regulating screw abuts against the elastic body, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted by changing the diameter of the tail of the screw, thereby adjusting the axial stress of the fracture end;

[0018] ③ The pressure regulating part is an elastic body 1, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, and an elastic body 1 is installed in the pressure regulating hole 1, and elastic bases are fixedly installed at both ends of the elastic body 1, and through holes are respectively provided on the elastic bases, and the through holes are arranged along the radial direction of the elastic body, and one end of the pressure regulating hole 1 is arranged as a blind hole, and one end of the elastic body is installed in the blind hole, and the other end is abutted against the top of the steel plate body. By replacing the elastic body 1 of different lengths, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end;

[0019] ④ The pressure regulating member is a top screw, and a top screw and an elastic body are installed in the pressure regulating screw hole. The top screw is threadedly connected to the pressure regulating sleeve 1, and the top end of the top screw abuts against one end of the elastic body, and the other end of the elastic body abuts against the steel plate body. The thickness of the pressure regulating screw hole section is thickened, and the pressure regulating screw hole can protrude from the upper surface of the pressure regulating sleeve 1. The axial stress of the pressure regulating device 2 along the steel plate body is adjusted by adjusting the depth of the top screw screwed in, thereby adjusting the axial stress of the fracture end;

[0020] ⑤ The pressure regulating part includes a pressure regulating sleeve with two side pressure regulating holes, the pressure regulating screw hole is located between the two side pressure regulating holes and is arranged axially along the steel plate body, a pressure regulating hole connected to the pressure regulating screw hole is arranged on one side, an elastic body is installed in the pressure regulating hole, the side pressure regulating holes are long holes arranged on both sides of the pressure regulating sleeve and are arranged axially along the steel plate body, the long holes are at least two connected screw holes, a sliding baffle is arranged on the pressure regulating sleeve, 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 elastic body and can slide in the pressure regulating hole, the pressure regulating bolt and the nut fix the sliding baffle on the pressure regulating sleeve through the screw hole, and the axial stress of the pressure regulating device along the steel plate body is adjusted according to the different positions of the pressure regulating bolt in the side pressure regulating hole, thereby adjusting the axial stress of the fracture end;

[0021] ⑥ The pressure regulating member is an eccentric shaft, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, and an elastic body 1 is installed in the pressure regulating hole 1, and an eccentric shaft is installed in the pressure regulating screw hole, and one end of the elastic body 1 is connected to the eccentric shaft, and the other end is connected to one end of the steel plate body. The axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the contact position between the eccentric shaft and the elastic body 1, thereby adjusting the axial stress of the fracture end;

[0022] The second pressure regulating device comprises a second pressure regulating sleeve connected to the traction rod and a second pressure regulating hole connected to the pressure regulating nail hole. A pressure regulating column is arranged below the second pressure regulating sleeve and the 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 nail hole, and the other end abuts against the pressure regulating column. Alternatively, no guide column is arranged in the second pressure regulating hole, and the pressure regulating column directly abuts against the bone screw in the pressure regulating nail hole. When the second pressure regulating device is an elastic pressure regulating device, a second elastic body is installed in the second pressure regulating hole, one end of the second elastic body abuts against the bone screw in the pressure regulating nail hole, and the other end abuts against the pressure regulating column.

[0023] A sliding hole is provided on the steel plate body, and the sliding hole is connected with the second pressure regulating hole. A sliding plate is installed in the sliding hole, and a pressure regulating nail hole is provided on the sliding plate. When the second pressure regulating device is a non-elastic pressure regulating device and a pressure regulating column is installed in the second pressure regulating hole, one end of the second guide column abuts against the sliding plate, and the other end abuts against the pressure regulating column. When the second guide column is not installed, the pressure regulating column directly abuts against 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 pressure regulating column. The radial stress of the bone screw is changed by adjusting the axial stress of the sliding plate, thereby adjusting the axial stress of the fracture end.

[0024] 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 larger than the axial length of the sliding plate.

[0025] The pressure regulating device 1 is connected to the pressure regulating device 2 through a traction rod, a traction hole is provided on the pressure regulating sleeve 1, 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 pressure regulating sleeve 2 through a fixing piece, and the fixing piece is one of a nut 1, an enlarged part or a fixing clamp; when it is a nut 1, a threaded section is provided on the traction rod, a nut 1 is installed on the threaded section, and the nut 1 is threadedly connected to the traction rod, and the traction hole can be set to an open type or a closed type; when it is one of an enlarged part or a fixing clamp, the traction hole can be set to an open type.

[0026] The sliding plate is provided with an anti-slip plate, and the anti-slip plate and the second pressure regulating sleeve are slidably connected with the steel plate body, and are set to be strip-shaped, spaced strip-shaped, or full-plate-shaped according to the size of the steel plate body covered by their surface; they are set to be half-set or full-set according to the connection form of the anti-slip plate, the second pressure regulating sleeve and the steel plate body. When the anti-slip plate and the second pressure regulating sleeve are half-set, their two ends are buckled on both sides of the steel plate body, and long slot holes are set on the upper surface; when the anti-slip plate and the second pressure regulating sleeve are full-set, long slot holes are set on both sides of the steel plate body, and long slot holes are set on the upper surface and the lower surface, and the long slot holes correspond to the pressure regulating nail holes of the sliding plate, and the radial size of the long slot holes is larger than the size of the pressure regulating nail holes.

[0027] At least two anti-slip screws are arranged on the steel plate body, the anti-slip screws are threadedly connected to the steel plate body, and the tails of the anti-slip screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from slipping out.

[0028] The elastic body 1 and the elastic body 2 are a kind of spring and elastic capsule. When they are springs, spring bases are arranged at both ends of the springs.

[0029] Traction grooves are respectively arranged on both sides of the steel plate body, traction holes are respectively arranged on the first and second voltage regulating sleeves, and the traction rod is passed through the traction hole and is fastened thereto; the traction rod is one of a metal rod or a cable.

[0030] The pressure regulating nail hole, pressure regulating hole 1 and fixing nail hole provided on the steel plate body are in one of the following forms:

[0031] ① At least two pressure regulating nail holes and at least one pressure regulating hole are provided at one end of the steel plate body;

[0032] ② Both ends of the steel plate body are provided with a pressure regulating nail hole and a pressure regulating hole 1, and the pressure regulating nail hole and the pressure regulating hole 1 are symmetrically arranged on the steel plate body;

[0033] ③ One end of the steel plate body is set as a fixed nail hole end, and the other end is set as a pressure-adjusting nail hole end. The fixed nail hole end is set as an anatomical plate consistent with the anatomical morphology of the human limb skeletal joints, and the pressure-adjusting nail hole end is set with at least two pressure-adjusting nail holes and at least one pressure-adjusting hole.

[0034] The first pressure regulating sleeve, the traction rod and the second pressure regulating sleeve are an integrated structure.

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

[0036] The present invention is easy to fix and convenient to operate. The steel plate body of the present invention is fixed to the bone through the bone screws in the fixing nail holes, and the radial stress of the bone screws in the pressure regulating nail holes is slightly adjusted by the elastic pressure regulating device in the pressure regulating hole, so as to achieve the regulation of the axial stress of the fracture end, stimulate the formation of callus, avoid stress shielding of the fracture end, accelerate fracture healing, and shorten the fixation time of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0038] Figure 2 for Figure 1 Section view of AA in the middle;

[0039] Figure 3 It is a structural schematic diagram of a second embodiment of the present invention;

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

[0041] Figure 5 is a schematic structural diagram of a fourth embodiment of the present invention;

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

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

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

[0045] Fig. 9 is a schematic structural diagram of an eighth embodiment of the present invention;

[0046] Fig.10 is a schematic structural diagram of a ninth embodiment of the present invention;

[0047] Fig.11 for Fig.10 A schematic diagram of the structure from another angle;

[0048] Fig.12 is a schematic structural diagram of a tenth embodiment of the present invention;

[0049] Fig.13 for Fig.12 A schematic diagram of the structure from another angle;

[0050] Fig.14 It is a structural schematic diagram of the eleventh embodiment of the present invention;

[0051] Fig.15is a schematic structural diagram of a twelfth embodiment of the present invention;

[0052] Fig.16 is a schematic structural diagram of a thirteenth embodiment of the present invention;

[0053] Fig.17 is a schematic structural diagram of a fourteenth embodiment of the present invention;

[0054] Fig.18 is a schematic structural diagram of a fifteenth embodiment of the present invention;

[0055] Fig.19 for Fig.18 Sectional view of the middle BB;

[0056] Fig. 20 It is a schematic diagram of a fifteenth embodiment in which a pressure regulating sleeve 1, a traction rod and a pressure regulating sleeve 2 are integrated into one structure;

[0057] Fig.21 is a schematic structural diagram of a sixteenth embodiment of the present invention;

[0058] Fig. 22 This is a schematic structural diagram of the pressure regulating sleeve 2 and the anti-slip plate in the sixteenth embodiment in the form of a half sleeve;

[0059] Fig.23 for Fig. 22 Schematic diagram of the structure in the CC direction;

[0060] Fig.24 This is a structural schematic diagram of the sixteenth embodiment in which the voltage regulating sleeve 2 and the anti-drop plate are in the form of a complete set;

[0061] Fig.25 is a structural schematic diagram of a seventeenth embodiment of the present invention;

[0062] Fig.26 is a schematic structural diagram of an eighteenth embodiment of the present invention;

[0063] Fig. 27 for Fig.26 Sectional view in the middle DD direction;

[0064] Fig.28 It is a side view of the steel plate body;

[0065] Fig.29 It is a structural schematic diagram of setting Kirschner wire holes on the steel plate body;

[0066] Fig.30 It is a structural schematic diagram of a nut as a fixing part on the traction rod and a corresponding traction hole on the pressure regulating sleeve;

[0067] Fig.31The structural diagram of the fixing part on the traction rod is the enlarged part and the corresponding traction hole on the pressure regulating sleeve;

[0068] Fig.32 The schematic diagram of the structure of the fixing member on the traction rod is a fixing clip;

[0069] In the figure, 1-pressure regulating sleeve one, 2-fixing nail hole, 3-traction rod, 4-steel plate body, 5-pressure regulating nail hole, 6-pressure regulating sleeve two, 7-pressure regulating screw, 8-pressure regulating column, 9-spring one, 10-spring two, 11-pressure regulating hole, 12-pressure regulating screw hole, 13-nut one, 14-side pressure regulating hole, 15-guide column one, 16-top screw, 17-guide groove, 18-traction hole, 19-eccentric shaft, 20-guide column two, 21-upper slot hole, 22-lower slot hole, 23-pressure regulating bolt, 24-anti-slip screw, 25-special-shaped gasket, 26-sliding baffle, 27-Kirschner wire hole, 28-expansion part, 29-fixing clip, 30-sliding hole, 31-sliding plate, 32-anti-slip plate. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] In the present invention, the elastic body 1 and the elastic body 2 are a kind of spring and elastic capsule. When they are springs, spring bases are arranged at both ends of the springs. In the following embodiments, the elastic body 1 and the elastic body 2 are spring 1 and spring 2, respectively.

[0072] A first embodiment of the present invention, as Figure 1 , Figure 2As shown, a top pressure regulating steel plate includes a steel plate body 4, a pressure regulating device 1, and a pressure regulating device 2. The top of the steel plate body 4 is provided with a pressure regulating device 1, and the other end is provided with a pressure regulating device 2. The pressure regulating device 1 is connected to the pressure regulating device 2 through a traction rod 3. The pressure regulating device 1 and the pressure regulating device 2 are used to adjust the radial stress of the bone screw in the pressure regulating nail hole 5. The steel plate body 4 is provided with a fixing nail hole 2, and bone screws are installed in the fixing nail hole 2 and the pressure regulating nail hole 5. The pressure regulating device 1 is a non-elastic pressure regulating device, and the pressure regulating device 2 is an elastic pressure regulating device; the pressure regulating device 1 includes a pressure regulating sleeve 1 located at the top of the steel plate body 4, the pressure regulating sleeve 1 is provided with a pressure regulating screw hole 12 arranged radially along the steel plate body 4, and a pressure regulating screw 7 is installed in the pressure regulating screw hole 12, and the pressure regulating sleeve 1 is connected to the pressure regulating device 2 through the traction rod 3. In this embodiment, the pressure regulating form of the non-elastic pressure regulating device is: a special-shaped gasket 25 is mounted on the tail of the pressure regulating screw 7, and one end of the special-shaped gasket 25 is abutted against the steel plate body 4. By replacing the length of different special-shaped gaskets 25, the axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0073] The second pressure regulating device includes a second pressure regulating sleeve 6 connected to the traction rod 3, and a second pressure regulating hole 11 connected to the pressure regulating nail hole 5. A pressure regulating column 8 is arranged below the second pressure regulating sleeve 6. The pressure regulating column 8 is located in the second pressure regulating hole 11. A spring 10 is installed in the second pressure regulating hole 11. One end of the second spring 10 abuts against the bone screw in the pressure regulating nail hole 5, and the other end abuts against the pressure regulating column 8.

[0074] The second embodiment of the present invention is different from the first embodiment in that Figure 3 As shown, the pressure-adjusting screw hole 12 is a pressure-adjusting long hole formed by at least two interconnected screw holes, a pressure-adjusting bolt 23 and a guide column 15 are installed in the pressure-adjusting long hole, a nut 2 is installed on the pressure-adjusting bolt 23, one end of the guide column 15 abuts against the pressure-adjusting bolt 23, and the other end abuts against the top of the steel plate body 4. According to the different positions of the pressure-adjusting bolt 23 in the pressure-adjusting screw hole 12, the axial stress of the pressure-adjusting device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0075] The third embodiment of the present invention is different from the first embodiment in that Figure 4 As shown, the pressure regulating screw 7 is an eccentric shaft 19, and 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 19 and the top of the steel plate body 4, thereby adjusting the axial stress of the fracture end.

[0076] The fourth embodiment of the present invention is different from the first embodiment in that Figure 5As shown, by replacing the pressure regulating screws 7 with different tail diameters, the axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0077] The fifth embodiment of the present invention is different from the first embodiment in that Figure 6 As shown, a guide column 15 is provided in the pressure regulating screw hole 12. By replacing the guide column 15 with different lengths, the axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0078] The sixth embodiment of the present invention is different from the first embodiment in that Figure 7 As shown, the pressure-adjusting screw hole 12 is arranged axially along the steel plate body 4, the top screw 16 is threadedly connected to the pressure-adjusting sleeve 1, the head of the top screw 16 abuts against one end of the steel plate body 4, the thickness of the pressure-adjusting screw hole 12 is thickened, and the pressure-adjusting screw hole 12 can protrude from the upper surface of the pressure-adjusting sleeve 1. The axial stress of the pressure-adjusting device 2 along the steel plate body 4 can be adjusted by adjusting the depth of the top screw 16, thereby adjusting the axial stress of the fracture end. A guide column 15 can also be installed between the top of the top screw 16 and the top of the steel plate body 4.

[0079] The seventh embodiment of the present invention is different from the first embodiment in that Figure 8 As shown, the second pressure regulating device can be installed at any pressure regulating nail hole 5.

[0080] The eighth embodiment of the present invention is different from the first embodiment in that Fig. 9 As shown, a spring 9 is installed in the pressure-adjusting screw hole 12, and elastic bases are fixedly installed at both ends of the spring 9. Through holes are respectively arranged on the spring bases, and the through holes are arranged along the radial direction of the elastic body. The end of the pressure-adjusting screw hole 12 away from the steel plate body 4 is arranged as a blind hole, one end of the spring 9 is installed in the blind hole, and the other end is abutted against the steel plate body 4. By replacing springs 9 of different lengths, the axial stress of the pressure-adjusting device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0081] The ninth embodiment of the present invention is different from the first embodiment in that Fig.10 , 11As shown, the pressure regulating sleeve 1 is provided with two side pressure regulating holes 14, and a spring 9 is installed in the pressure regulating screw hole 12. The side pressure regulating holes 14 are long holes arranged on both sides of the pressure regulating screw hole 12 and are arranged axially along the steel plate body 4. The long holes are at least two connected screw holes. The pressure regulating sleeve 1 is provided with a sliding baffle 26. The sliding baffle 26 has screw holes at both ends and a sliding column in the middle. The sliding column abuts against the spring 9 and can slide in the pressure regulating screw hole 12. The pressure regulating bolt 23 and the nut 2 fix the sliding baffle 26 on the pressure regulating sleeve 1 through the screw hole. According to the different positions of the pressure regulating bolt 23 in the side pressure regulating hole 14, the axial stress of the pressure regulating device 2 along the steel plate body 4 is adjusted, thereby adjusting the axial stress of the fracture end.

[0082] The tenth embodiment of the present invention is different from the first embodiment in that: Fig.12 , 13 As shown, multiple pressure regulating devices 2 can be provided, and the pressure regulating sleeve 1, the traction rod 3, and the pressure regulating sleeve 2 6 can be provided as an integrated structure. A guide groove 17 is provided on the lower surface of the steel plate body 4, and the traction rod 3 is buckled on the steel plate body 4 and can slide left and right along the guide groove 17.

[0083] The eleventh embodiment of the present invention is different from the sixth embodiment in that: Fig.14 As shown, a spring 9 is installed in the pressure-adjusting screw hole 12, one end of the spring 9 abuts against the pressure-adjusting screw 7, and the other end abuts against the steel plate body 4.

[0084] The twelfth embodiment of the present invention is different from the sixth embodiment in that: Fig.15 As shown, a spring 9 is installed in the pressure regulating screw hole 12, one end of the spring 9 abuts against the eccentric shaft 19, and the other end abuts against the top of the steel plate body 4.

[0085] The thirteenth embodiment of the present invention is different from the sixth embodiment in that: Fig.16 As shown, a spring 9 is installed in the voltage-adjusting screw hole 12 , one end of the spring 9 abuts against the top screw 16 , and the other end abuts against the steel plate body 4 .

[0086] The fourteenth embodiment of the present invention is different from the twelfth embodiment in that: Fig.17 As shown, the spring 10 can be replaced with a guide post 20.

[0087] The fifteenth embodiment of the present invention is different from the thirteenth embodiment in that: Fig.18 , 19 As shown, the pressure regulating sleeve 1, the pressure regulating sleeve 2 6, and the traction rod 3 are set as an integrated structure and are set in a half-set form, such as Fig. 20 As shown, it can also be set as a full set.

[0088] The sixteenth embodiment of the present invention is different from the first embodiment in that: Fig.21 As shown, the steel plate body 4 is provided with a sliding hole 30, the sliding hole 30 is connected with the pressure regulating hole 2 11, a sliding plate 31 is installed in the sliding hole 30, and the sliding plate 31 is provided with a pressure regulating nail hole 5, one end of the spring 2 10 abuts against the sliding plate 31, and the other end abuts against the pressure regulating column 8, and the radial stress of the bone screw is changed by adjusting the axial stress of the sliding plate 31, thereby adjusting the axial stress of the fracture end. The sliding hole 30 is a special-shaped sliding hole, that is, the opening on the upper surface of the steel plate body 4 is larger than the opening on the lower surface, and the axial length of the sliding hole 30 is larger than the axial length of the sliding plate 31.

[0089] The sliding plate 31 is provided with an anti-slip plate 32, and the anti-slip plate 32 and the pressure regulating sleeve 26 are slidably connected with the steel plate body 4, and are set in a strip shape, an interval strip shape, or a full plate shape according to the size of the steel plate body 4 covered by the surface thereof; according to the connection form of the anti-slip plate 32, the pressure regulating sleeve 26 and the steel plate body 4, they are set in a half-set or full-set form, such as Fig. 22 , 23 As shown, when the anti-drop plate 32 and the pressure regulating sleeve 26 are half sleeves, their two ends are buckled on both sides of the steel plate body 4, and an upper slot 21 is provided on the upper surface; Fig.24 As shown, when the anti-drop plate 32 and the pressure-adjusting sleeve 26 are in the form of a complete set, an upper slot hole 21 and a lower slot hole 22 are respectively provided on the upper surface and the lower surface thereof, and the upper slot hole 21 and the lower slot hole 22 both correspond to the pressure-adjusting nail hole 5 on the sliding plate 31, and the radial dimensions of the upper slot hole 21 and the lower slot hole 22 are larger than the dimensions of the pressure-adjusting nail hole 5.

[0090] A seventeenth embodiment of the present invention, as Fig.25 As shown, the difference from the sixteenth embodiment is that the strip-shaped anti-slip plate is replaced with an anti-slip screw 24, and the anti-slip screw 24 is threadedly connected to the steel plate body 4, and the tail of the anti-slip screw 24 is pressed on the upper surface of the sliding plate to prevent the sliding plate from slipping out.

[0091] An eighteenth embodiment of the present invention, as Fig.26 , 27 As shown, the difference from the fourteenth embodiment is that a top screw 16 is installed in the pressure regulating screw hole 12, and the head end of the top screw 16 abuts against the top end of the steel plate body 4.

[0092] In the above embodiments, the form of the steel plate body 4 can be set in various forms, such as Fig.28 As shown, the upper and lower surfaces of the steel plate body 4 are radially set to have a certain curvature, and the lower surfaces of the steel plate body 4 and the anti-slip plate 32 on both sides may also be provided with grooves to reduce the contact area with the bone. Fig.29 As shown, the steel plate body 4 is provided with a Kirschner wire hole 27, and the Kirschner wire hole 27 is used for temporarily fixing bones.

[0093] In addition, in the above embodiments, Fig.30 , 31 As shown in Figures 3 and 32, the pressure regulating device 1 is connected to the pressure regulating device 2 through the traction rod 3, the pressure regulating sleeve 1 is provided with a traction hole 18, the traction rod 3 is provided with a threaded section, one end of the traction rod 3 passes through the traction hole 18, and the other end of the traction rod 3 is fixedly installed on the pressure regulating sleeve 2 6 through a fixing member, and the fixing member is one of a nut 13, an enlarged portion 28 or a fixing clip 29. The steel plate body 4 is provided with traction holes 18 on both sides, the pressure regulating sleeve 1 and the pressure regulating sleeve 2 6 are provided with traction holes 18, the traction rod 3 passes through the traction holes 18 and is fastened thereto; the traction rod 3 is one of a metal rod or a cable. When the fixing member is a nut 13, the traction rod 3 is provided with a threaded section, the nut 13 is installed on the threaded section, and the nut 13 is threadedly connected to the traction rod 3. At this time, the traction hole 18 is set to be open or closed. When the fixing member is one of the enlarged portion 28 or the fixing clip 29, the traction hole 18 is set to be open.

[0094] As another form of the present invention, the pressure regulating nail hole 5, the pressure regulating hole 11, and the fixing nail hole 2 provided on the steel plate body 4 are in one of the following forms:

[0095] ① At least two pressure regulating nail holes 5 and at least one pressure regulating hole 11 are provided at one end of the steel plate body 4;

[0096] ② Both ends of the steel plate body 4 are provided with pressure regulating nail holes 5 and pressure regulating holes 11, and the pressure regulating nail holes 5 and pressure regulating holes 11 are symmetrically arranged on the steel plate body 4;

[0097] ③ One end of the steel plate body 4 is set as a fixing nail hole 2, and the other end is set as a pressure-regulating nail hole 5. One end of the fixing nail hole 2 is set as an anatomical plate consistent with the anatomical morphology of the skeletal joints of the human limbs, and at least two pressure-regulating nail holes 5 and at least one pressure-regulating hole 11 are set at the pressure-regulating nail hole 5 end.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the embodiments of the present invention. For example, in Embodiment 1, the pressure regulating nail hole in the elastic pressure regulating device is set to one, two, etc. In the embodiment with the pressure regulating sleeve 2, the fixing form of the pressure regulating sleeve 2 and the pressure regulating sleeve 1, or the form of the pressure regulating sleeve 2 is changed, etc. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A top pressure regulating steel plate, characterized in that: It comprises a steel plate body, a first pressure regulating device and a second pressure regulating device. The first pressure regulating device is arranged at the top of the steel plate body, and the second pressure regulating device is arranged at the other end. The first pressure regulating device is connected to the second pressure regulating device through a traction rod. The steel plate body is provided with a pressure regulating nail hole, 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. The steel plate body is provided with a fixing nail hole, and bone screws are installed in both the fixing nail hole and the pressure regulating nail hole. 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 first pressure regulating sleeve located at the top of the steel plate body, the first pressure regulating sleeve is provided with a pressure regulating screw hole, a pressure regulating member is installed in the pressure regulating screw 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: ① The pressure regulating member is a pressure regulating screw, and a special-shaped gasket is mounted on the tail of the pressure regulating screw. One end of the special-shaped gasket abuts against the top of the steel plate body. By changing the length of different special-shaped gaskets, the axial stress of the pressure regulating device along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end; ② The pressure regulating member is a pressure regulating bolt, and the pressure regulating screw hole is a pressure regulating long hole formed by at least two connected screw holes, in which a pressure regulating bolt and a guide column are installed, and a nut is installed on the pressure regulating bolt, one end of the guide column abuts against the pressure regulating bolt, and the other end abuts against the top of the steel plate body, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the different positions of the pressure regulating bolt in the pressure regulating screw hole, thereby adjusting the axial stress of the fracture end; ③ The pressure regulating member is an eccentric shaft, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the contact position between the eccentric shaft and the top of the steel plate body, thereby adjusting the axial stress of the fracture end; ④ The pressure regulating member is a pressure regulating screw, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted by replacing the pressure regulating screws with different tail diameters, thereby adjusting the axial stress of the fracture end; ⑤ The pressure regulating member is a guide column 1, the pressure regulating screw hole is arranged along the axial direction of the steel plate body, a blind hole is arranged at one end away from the steel plate body, the guide column 1 is located in the pressure regulating screw hole, one end of the guide column 1 abuts against the top of the steel plate body 1, and the other end is located in the blind hole. By replacing the guide column 1 of different lengths, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end; ⑥ The pressure regulating member is a top screw, the pressure regulating screw hole is arranged along the axial direction of the steel plate body, the top screw is threadedly connected to the pressure regulating sleeve 1, the top of the top screw abuts against one end of the steel plate body, the thickness of the pressure regulating screw hole is thickened, and the pressure regulating screw hole can protrude from the upper surface of the pressure regulating sleeve 1. By adjusting the depth of the top screw screwing in, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end; The second pressure regulating device comprises a second pressure regulating sleeve connected to the traction rod, a pressure regulating column is arranged below the second pressure regulating sleeve, the pressure regulating column is located in the second pressure regulating hole, an elastic body is installed in the second pressure regulating hole, one end of the elastic body abuts against the bone screw in the pressure regulating nail hole, and the other end abuts against the pressure regulating column; or, The first pressure regulating device is an elastic pressure regulating device, and the first pressure regulating device includes a pressure regulating sleeve at the top of the steel plate body, the first pressure regulating sleeve is provided with a pressure regulating screw hole, a pressure regulating member is installed in the pressure regulating screw hole, the first pressure regulating sleeve is connected to the second pressure regulating device through a traction rod, and the pressure regulating form of the elastic pressure regulating device is one of the following forms: ① The pressure regulating member is a pressure regulating screw, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, and an elastic body 1 is installed in the pressure regulating hole 1, and one end of the elastic body 1 abuts against the steel plate body, and the other end abuts against the pressure regulating screw in the pressure regulating screw hole. The axial stress of the pressure regulating device 2 along the steel plate body is adjusted by replacing elastic bodies of different lengths, thereby adjusting the axial stress of the fracture end; ② The pressure regulating member is a pressure regulating screw, one side of the pressure regulating screw hole is provided with a pressure regulating hole 1 connected thereto, an elastic body 1 is installed in the pressure regulating hole 1, the pressure regulating screw is threadedly connected to a pressure regulating sleeve 1, the tail of the pressure regulating screw abuts against the elastic body, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted by changing the diameter of the tail of the screw, thereby adjusting the axial stress of the fracture end; ③ The pressure regulating member is an elastic body 1, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, and an elastic body 1 is installed in the pressure regulating hole 1, and elastic bases are fixedly installed at both ends of the elastic body 1, and through holes are respectively provided on the elastic bases, and the through holes are arranged along the radial direction of the elastic body, and one end of the pressure regulating hole 1 is arranged as a blind hole, and one end of the elastic body is installed in the blind hole, and the other end is abutted against the top of the steel plate body. By replacing the elastic body 1 of different lengths, the axial stress of the pressure regulating device 2 along the steel plate body is adjusted, thereby adjusting the axial stress of the fracture end; ④ The pressure regulating member is a top screw, and a top screw and an elastic body are installed in the pressure regulating screw hole. The top screw is threadedly connected to the pressure regulating sleeve 1, and the top end of the top screw abuts against one end of the elastic body, and the other end of the elastic body abuts against the steel plate body. The thickness of the pressure regulating screw hole section is thickened, and the pressure regulating screw hole can protrude from the upper surface of the pressure regulating sleeve 1. The axial stress of the pressure regulating device 2 along the steel plate body is adjusted by adjusting the depth of the top screw screwed in, thereby adjusting the axial stress of the fracture end; ⑤ The pressure regulating part includes a pressure regulating sleeve with two side pressure regulating holes, the pressure regulating screw hole is located between the two side pressure regulating holes and is arranged axially along the steel plate body, a pressure regulating hole connected to the pressure regulating screw hole is arranged on one side, an elastic body is installed in the pressure regulating hole, the side pressure regulating holes are long holes arranged on both sides of the pressure regulating sleeve and are arranged axially along the steel plate body, the long holes are at least two connected screw holes, a sliding baffle is provided on the pressure regulating sleeve, screw holes are arranged at both ends of the sliding baffle, a sliding column is arranged in the middle, the sliding column abuts against the elastic body and can slide in the pressure regulating hole, the pressure regulating bolt and the nut fix the sliding baffle on the pressure regulating sleeve through the screw hole, and the axial stress of the pressure regulating device along the steel plate body is adjusted according to the different positions of the pressure regulating bolt in the side pressure regulating hole, thereby adjusting the axial stress of the fracture end; ⑥ The pressure regulating part is an eccentric shaft, and a pressure regulating hole 1 connected to the pressure regulating screw hole is provided on one side thereof, an elastic body 1 is installed in the pressure regulating hole 1, an eccentric shaft is installed in the pressure regulating screw hole, one end of the elastic body 1 is connected to the eccentric shaft, and the other end is connected to one end of the steel plate body, and the axial stress of the pressure regulating device 2 along the steel plate body is adjusted according to the contact position between the eccentric shaft and the elastic body 1, thereby adjusting the axial stress of the fracture end; the pressure regulating device 2 includes a pressure regulating sleeve 2 connected to the traction rod, and a pressure regulating hole 2 connected to the pressure regulating nail hole, and the pressure regulating sleeve 2 A pressure-regulating column is arranged at the bottom, and the 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 nail hole, and the other end abuts against the pressure-regulating column. Alternatively, no guide column is arranged in the second pressure-regulating hole, and the pressure-regulating column directly abuts against the bone screw in the pressure-regulating nail hole. When the second pressure-regulating device is an elastic pressure-regulating device, a second elastic body is installed in the second pressure-regulating hole, one end of the second elastic body abuts against the bone screw in the pressure-regulating nail hole, and the other end abuts against the pressure-regulating column.

2. The top pressure regulating steel plate according to claim 1, characterized in that: A sliding hole is provided on the steel plate body, and the sliding hole is connected with the second pressure regulating hole. A sliding plate is installed in the sliding hole, and a pressure regulating nail hole is provided on the sliding plate. When the second pressure regulating device is a non-elastic pressure regulating device and a pressure regulating column is installed in the second pressure regulating hole, one end of the second guide column abuts against the sliding plate, and the other end abuts against the pressure regulating column. When the second guide column is not installed, the pressure regulating column directly abuts against 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 pressure regulating column. The radial stress of the bone screw is changed by adjusting the axial stress of the sliding plate, thereby adjusting the axial stress of the fracture end.

3. The top pressure regulating steel plate according to claim 2, 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 larger than the axial length of the sliding plate.

4. The top pressure regulating steel plate according to claim 3, characterized in that: The pressure regulating device 1 is connected to the pressure regulating device 2 through a traction rod, a traction hole is provided on the pressure regulating sleeve 1, 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 pressure regulating sleeve 2 through a fixing piece, and the fixing piece is one of a nut 1, an enlarged part or a fixing clamp; when it is a nut 1, a threaded section is provided on the traction rod, a nut 1 is installed on the threaded section, and the nut 1 is threadedly connected to the traction rod, and the traction hole can be set to an open type or a closed type; when it is one of an enlarged part or a fixing clamp, the traction hole can be set to an open type.

5. The top pressure regulating steel plate according to claim 4, characterized in that: The sliding plate is provided with an anti-slip plate, and the anti-slip plate and the second pressure regulating sleeve are slidably connected with the steel plate body, and are set to be strip-shaped, spaced strip-shaped, or full-plate-shaped according to the size of the steel plate body covered by their surface; they are set to be half-set or full-set according to the connection form of the anti-slip plate, the second pressure regulating sleeve and the steel plate body. When the anti-slip plate and the second pressure regulating sleeve are half-set, their two ends are buckled on both sides of the steel plate body, and long slot holes are set on the upper surface; when the anti-slip plate and the second pressure regulating sleeve are full-set, long slot holes are set on both sides of the steel plate body, and long slot holes are set on the upper surface and the lower surface, and the long slot holes correspond to the pressure regulating nail holes of the sliding plate, and the radial size of the long slot holes is larger than the size of the pressure regulating nail holes.

6. The top pressure regulating steel plate according to claim 5, characterized in that: At least two anti-slipping screws are arranged on the steel plate body, the anti-slipping screws are threadedly connected to the steel plate body, and the tails of the anti-slipping screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from slipping out.

7. According to the top pressure regulating steel plate described in claim 1, the elastic body 1 and the elastic body 2 are one of a spring and an elastic capsule. When they are springs, spring bases are provided at both ends of the spring.

8. The top pressure regulating steel plate according to claim 7, characterized in that: Traction grooves are respectively arranged on both sides of the steel plate body, traction holes are respectively arranged on the first and second voltage regulating sleeves, and the traction rod is passed through the traction hole and is fastened thereto; the traction rod is one of a metal rod or a cable.

9. The top pressure regulating steel plate according to claim 8, characterized in that: The pressure regulating nail hole, pressure regulating hole 1 and fixing nail hole provided on the steel plate body are in one of the following forms: ① At least two pressure regulating nail holes and at least one pressure regulating hole are provided at one end of the steel plate body; ② Both ends of the steel plate body are provided with a pressure regulating nail hole and a pressure regulating hole 1, and the pressure regulating nail hole and the pressure regulating hole 1 are symmetrically arranged on the steel plate body; ③ One end of the steel plate body is set as a fixed nail hole end, and the other end is set as a pressure-adjusting nail hole end. The fixed nail hole end is set as an anatomical plate consistent with the anatomical morphology of the human limb skeletal joints, and the pressure-adjusting nail hole end is set with at least two pressure-adjusting nail holes and at least one pressure-adjusting hole.

10. The top pressure regulating steel plate according to claim 9, characterized in that: The first pressure regulating sleeve, the traction rod and the second pressure regulating sleeve are an integrated structure.

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

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