CN112494129B - Integral type pressure regulating steel sheet - Google Patents
Integral type pressure regulating steel sheet Download PDFInfo
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- CN112494129B CN112494129B CN202011028028.8A CN202011028028A CN112494129B CN 112494129 B CN112494129 B CN 112494129B CN 202011028028 A CN202011028028 A CN 202011028028A CN 112494129 B CN112494129 B CN 112494129B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8014—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones the extension or compression force being caused by interaction of the plate hole and the screws
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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Abstract
The invention discloses an integrated pressure regulating steel plate which comprises a steel plate body, wherein a pressure regulating nail hole and a pressure regulating hole are formed in the steel plate body, a bone screw is arranged in the pressure regulating nail hole, a pressure regulating device is arranged in the pressure regulating hole, and the pressure regulating device is used for regulating the radial stress of the bone screw in the pressure regulating nail hole. The invention has the advantages of easy fixation and convenient operation. The steel plate body is fixed on bones through the bone screws in the fixing screw holes, and the radial stress of the bone screws in the pressure regulating screw holes is regulated through the pressure regulating device in the pressure regulating holes, so that the axial stress of the fracture ends is regulated and controlled, the stress shielding of the fracture ends is avoided, the fracture healing is accelerated, the fracture nonunion is reduced, the healing is delayed, the incidence of fracture after the steel plate is removed is reduced, and the fracture healing time is shortened.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to an integrated pressure regulating steel plate.
Background
The method of fixing the steel plate and the fixing nail as internal fixation has been applied clinically for many years, and in the clinical treatment process, various methods are applied to the fixation of fracture, wherein the steel plate is one of the most commonly used methods, the traditional steel plate for bone fixation is to fix the steel plate on the bone through screws so as to integrate the steel plate and the bone, but in the later period of fracture repair, due to the stress shielding effect of the steel plate, proper stress stimulation cannot be given to the fracture end, delayed healing, non-healing and slow mineralization speed of the bone are easy to occur, and the application of the steel plate for bone fracture fixation is limited. Therefore, the design of the steel plate capable of adjusting the stress of the fracture ends and promoting fracture healing is a difficult problem to be solved clinically at present.
Disclosure of Invention
The invention aims to provide an integrated pressure regulating steel plate which has the advantages of simple structure, convenient operation, easy fixation and capability of stimulating radial stress of a fracture end and accelerating bone healing.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an integral type pressure regulating steel sheet, includes the steel sheet body, be provided with pressure regulating nail hole, pressure regulating hole on the steel sheet body, install bone screw in the pressure regulating nail hole, install pressure regulating device in the pressure regulating hole, pressure regulating device is used for adjusting the radial stress of bone screw in the pressure regulating nail hole.
Further, a set screw hole is provided in the steel plate body, and a bone screw is also installed in the set screw hole.
Further, the pressure regulating nail hole is communicated with the pressure regulating hole, and the radial stress of the bone screw in the pressure regulating nail hole is regulated by one of the following modes:
① The pressure regulating device comprises a screw and a pressure regulating screw hole which are arranged in the pressure regulating hole, the screw is in threaded connection with the steel plate body, the tail part of the screw is sleeved with a special-shaped gasket, the distal end of the special-shaped gasket is abutted against the bone screw, and the radial stress of the bone screw in the pressure regulating screw hole is regulated by changing the length of the special-shaped gasket, so that the axial stress of the fracture end is regulated;
② The pressure regulating device comprises a screw, a pressure regulating nail hole and a guide pillar, wherein the screw, the pressure regulating nail hole and the guide pillar are arranged in the pressure regulating hole, the screw is in threaded connection with the steel plate body, the tail part of the screw is abutted against one end of the guide pillar, the other end of the guide pillar is abutted against a bone screw in the pressure regulating nail hole, and the radial stress of the bone screw in the pressure regulating nail hole is regulated by changing the diameter of the tail part of the screw, so that the axial stress of a fracture end is regulated;
③ The pressure regulating device comprises a bolt, a pressure regulating nail hole and a guide pillar, wherein the bolt, the pressure regulating nail hole and the guide pillar are arranged in the pressure regulating hole, the bolt is in threaded connection with the steel plate body, the tail part of the bolt is abutted against one end of the guide pillar, a nut is arranged on the bolt, the other end of the guide pillar is abutted against a bone screw in the pressure regulating nail hole, the pressure regulating hole in the steel plate body is a pressure regulating long hole formed by at least two communicated screw holes, and the radial stress of the bone screw in the pressure regulating nail hole is regulated according to different positions of the bolt in the pressure regulating nail hole, so that the axial stress of a fracture end is regulated;
④ The pressure regulating device is a jackscrew arranged in the pressure regulating hole, the jackscrew is in threaded connection with the steel plate body, the top end of the jackscrew is abutted to a bone screw in the pressure regulating screw hole, the thickness of the steel plate at the pressure regulating hole section is thickened, the pressure regulating hole can protrude out of the upper surface of the steel plate body, and the radial stress of the bone screw in the pressure regulating screw hole is regulated by regulating the screwing depth of the jackscrew, so that the axial stress of the fracture end is regulated;
⑤ The pressure regulating device comprises two side fixing holes, a sliding baffle, fixing nails and guide posts in the pressure regulating holes, wherein the two side fixing holes are formed in the steel plate body, the side fixing holes are long holes formed in two sides of the steel plate body and are axially formed along the steel plate body, the long holes are at least two screw holes which are communicated, the sliding baffle is arranged on the steel plate body, screw holes are formed in the two ends of the sliding baffle, sliding posts are arranged in the middle of the sliding baffle, the sliding posts are abutted to one ends of the guide posts, the other ends of the guide posts are abutted to bone screws in the pressure regulating nail holes, the sliding posts can slide in the pressure regulating holes, the fixing nails fix the sliding baffle on the steel plate body, and then the axial stress of the bone screws in the pressure regulating nail holes is regulated according to different positions of the fixing nails in the side fixing holes.
Further, the pressure regulating nail hole, the pressure regulating hole and the fixing screw hole arranged on the steel plate body are in one of the following forms:
① The steel plate body one end sets up two at least pressure regulating nail holes and at least one pressure regulating hole, and the other end sets up two at least set screw holes, pressure regulating nail hole, pressure regulating hole and set screw hole symmetry set up on the steel plate body.
② The two ends of the steel plate body are respectively provided with a pressure regulating nail hole and a pressure regulating hole, and the pressure regulating nail holes and the pressure regulating holes are symmetrically arranged on the steel plate body and can be arranged in a straight line or in a staggered mode.
③ One end of the steel plate body fixing screw hole is set to be an anatomical plate which is consistent with anatomical form of the joint part of the four limbs of the human body, and the other end of the steel plate body is provided with at least two pressure regulating nail holes and at least one pressure regulating hole.
Further, be provided with the slide hole on the steel sheet body, slide hole and pressure regulating hole intercommunication are installed the sliding plate in the slide hole, are provided with the pressure regulating nail hole on the sliding plate, pressure regulating device is installed to the one end of sliding plate, adjusts the radial stress of sliding plate through pressure regulating device.
As a further optimization of the invention, the sliding hole is a special-shaped sliding hole, the opening of the upper surface of the steel plate body is larger than the opening of the lower surface, and the radial length of the sliding hole is larger than that of the sliding plate.
Further, at least two anti-falling screws are arranged on the steel plate body and are in threaded connection with the steel plate body, and the tail parts of the anti-falling screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from falling off.
The anti-drop plate is arranged on the steel plate body, the anti-drop plate is connected with the steel plate body in a sliding mode, the anti-drop plate is in a strip shape, a strip shape and a full plate shape according to the covering size of the surface of the anti-drop plate, the anti-drop plate is arranged in a half-sleeve or full-sleeve shape according to the connecting mode of the anti-drop plate and the steel plate body, when the anti-drop plate is in the strip shape, two ends of the anti-drop plate are buckled on two sides of the steel plate body, when the anti-drop plate is in the full-sleeve shape, long slot holes are formed in the upper surface and the lower surface of the anti-drop plate, the long slot holes correspond to pressure regulating nail holes of the sliding plate, when the anti-drop plate is in the half-sleeve shape, 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.
Further, the set screw hole arranged on the steel plate body is set to be a screw hole without threads or a locking screw hole with threads, or a long screw hole with a combination of the screw hole without threads and the locking screw hole with threads.
In addition, the steel plate body is a straight steel plate or an arc steel plate with a certain radian consistent with the shape of a bone, the upper surface and the lower surface of the steel plate body are radially provided with cambered surfaces with a certain radian, the steel plate body is provided with at least one Kirschner wire round hole for temporarily fixing the bone, and grooves can be formed in the lower surfaces of the two sides of the steel plate body and the anti-drop plate.
The invention has the advantages of easy fixation and convenient operation. The steel plate body is fixed on bones 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 adjusted by micro-motion through the pressure regulating devices in the pressure regulating holes, so that the stress of fracture ends is regulated and controlled, the stress shielding of the fracture ends is avoided, and the fracture healing is accelerated.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a third embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the DD shown in FIG. 3;
FIG. 5 is a schematic diagram of a fourth embodiment of the present invention;
FIG. 6 is a schematic diagram of a fifth embodiment of the present invention;
FIG. 7 is a schematic view of a sixth embodiment of the present invention;
fig. 8 is a schematic structural view of a seventh embodiment of the present invention;
FIG. 9 is a schematic diagram of an eighth embodiment of the present invention;
Fig. 10 is a schematic structural view of a ninth embodiment of the present invention;
Fig. 11 is a schematic structural view of a tenth embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view taken along the AA in FIG. 11;
Fig. 13 is a schematic structural view of an eleventh embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view in BB direction in FIG. 13;
fig. 15 is a schematic structural view of a twelfth embodiment of the present invention;
FIG. 16 is a schematic cross-sectional view of the CC shown in FIG. 15;
Fig. 17 is a schematic structural view of a thirteenth embodiment of the present invention;
FIG. 18 is a schematic view of a fourteenth embodiment of the present invention;
Fig. 19 is a schematic structural view of a fifteenth embodiment of the present invention;
Fig. 20 is a schematic structural view of a sixteenth embodiment of the present invention;
fig. 21 is a schematic structural view of a seventeenth embodiment of the present invention.
[ Reference numerals description ]
The steel plate comprises a 1-steel plate body, a 2-set screw hole, a 3-pressure regulating nail hole, a 4-guide pillar, a 5-screw, a 6-sliding plate, a 7-sliding hole, an 8-special-shaped gasket, a 9-set screw, a 10-pressure regulating hole, an 11-jackscrew, a 12-sliding baffle, a 13-side fixed hole, a 14-anti-drop plate, a 15-anti-drop screw, a 16-slotted hole, a 17-Kirschner wire round hole, an 18-bolt and a 19-nut.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to a first embodiment of the invention, as shown in fig. 1, an integrated pressure regulating steel plate comprises a steel plate body 1, wherein a fixing screw hole 2, a pressure regulating screw hole 3 and a pressure regulating hole 10 are arranged on the steel plate body 1, the pressure regulating screw hole 3 is communicated with the pressure regulating hole 10, the pressure regulating hole 10 is axially arranged along the steel plate body 1, a screw 5 is arranged in the pressure regulating hole 10, a pressure regulating device is arranged in the pressure regulating hole 10, and the pressure regulating device can change the radial stress of a bone screw in the pressure regulating screw hole 3. The pressure regulating device comprises a screw 5 arranged in a pressure regulating hole 10 and a guide pillar 4 arranged in the pressure regulating hole 10, one end of the guide pillar 4 is abutted against the screw 5, the other end is abutted against a bone screw in the pressure regulating screw hole 3, the screw 5 is abutted against the guide pillar 4, the radial stress of the bone screw in the pressure regulating screw hole is regulated by changing the diameter of the tail part of the screw 5, and then the axial stress of the fracture end is regulated.
When in use, the bone screws are respectively arranged in the fixing screw holes 2 and the pressure regulating screw holes 3, and fixed on bones, the pressure regulating device in the pressure regulating holes 10 is regulated, and the radial stress of the bone screws in the pressure regulating screw holes 3 is slightly regulated, so that the axial stress of fracture ends is regulated.
In a second embodiment of the present invention, as shown in fig. 2, an integral pressure-regulating steel plate includes a steel plate body 1, a set screw hole 2, a pressure-regulating screw hole 3 and a pressure-regulating hole 10 are provided on the steel plate body 1, the pressure-regulating screw hole 3 is communicated with the pressure-regulating hole 10, a screw 5 is installed in the pressure-regulating hole 10, and a pressure-regulating device capable of regulating the radial stress of a bone screw in the pressure-regulating screw hole 3 is installed in the pressure-regulating hole 10. The pressure regulating device comprises a screw 5 arranged in a pressure regulating hole 10, a special-shaped gasket 8 is arranged at the tail part of the screw 5, and one pressure regulating end of the special-shaped gasket 8 is abutted against a bone screw in the pressure regulating screw hole 3.
When in use, the bone screws are respectively arranged in the fixing screw holes 2 and the pressure regulating screw holes 3, and are fixed on bones, the pressure regulating device in the pressure regulating holes 10 is adjusted, and the radial stress of the bone screws in the pressure regulating screw holes 3 is micro-adjusted. In the embodiment, the radial stress of the bone screw in the pressure regulating nail hole 3 is regulated by changing the length of the guide post end of the special-shaped gasket 8, so that the axial stress of the fracture end is regulated.
The third embodiment of the present invention, as shown in fig. 3 and fig. 4, is different from the first embodiment in that the pressure adjusting device includes a guide post 4 installed in the pressure adjusting hole, a bolt 18, and a pressure adjusting hole 10, the bolt 18 is screwed with the steel plate body 1, a nut 19 is installed on the bolt, the pressure adjusting hole 10 on the steel plate body 1 is a pressure adjusting slot formed by two connected screw holes, and the radial stress of the bone screw in the pressure adjusting screw hole 3 is adjusted by adjusting the different positions of the bolt 18 in the pressure adjusting slot.
The fourth embodiment of the present invention, as shown in fig. 5, is different from the first embodiment in that the pressure regulating device includes a top thread 11 installed in a pressure regulating hole 10, a guide post 4 is installed at the bottom end of the top thread 11, and the other end of the guide post 4 contacts with a bone screw in a pressure regulating nail hole 3. The pressure regulating nail hole 3 protrudes out of the upper surface of the steel plate body 1. The radial stress of the bone screw in the pressure regulating nail hole 3 is adjusted by adjusting the position of the jackscrew 11. In this embodiment, the guide post 4 is not required, so that the bottom end of the jackscrew 11 directly contacts the bone screw in the pressure-regulating nail hole 3, and the radial stress of the bone screw is regulated by the depth of the jackscrew 11 entering the steel plate body 1, so as to regulate the axial stress of the fracture end.
The fifth embodiment of the present invention, as shown in fig. 6, is different from the first embodiment in that the pressure adjusting device includes two side fixing holes 13, a sliding baffle 12, fixing nails 9 and guiding posts in the pressure adjusting holes 10, the side fixing holes 13 are elongated holes disposed on two sides of the steel plate body and are disposed along the axial direction of the steel plate body 1, the elongated holes are two screw holes that are communicated, the steel plate body 1 is provided with the sliding baffle 12, two ends of the sliding baffle 12 are provided with screw holes, a sliding post is disposed in the middle of the sliding baffle, the sliding post abuts against the guiding posts 4, the sliding post can slide in the pressure adjusting holes 10, the fixing nails 9 fix the sliding baffle 12 on the steel plate body 1, and adjust the axial stress of the guiding posts 4 according to different positions of the fixing nails 9 in the side fixing holes 13, and adjust the radial stress of the bone screws in the pressure adjusting nail holes 3 through the guiding posts 4, thereby adjusting the axial stress of the fracture ends.
The sixth embodiment of the present invention, as shown in fig. 7, is different from the first embodiment in that three pressure regulating nail holes 3 and 10 are provided in the steel plate body 1, and the fixing screw holes 2 are provided on one side of the steel plate body 1 and on the other side of the steel plate body 1. In this embodiment, the radial stress of the bone screw in the pressure regulating screw hole 3 is adjusted by the screw 5 according to the different recovery periods.
The seventh embodiment of the present invention, as shown in fig. 8, is different from the first embodiment in that the steel plate body 1 is not provided with the set screw hole 2, the set screw hole 2 is provided with the pressure regulating nail hole 3 and the pressure regulating hole 10, and the set screw hole 2 is symmetrically arranged on the steel plate body 1, and the radial stress of the bone screw in the pressure regulating nail hole 3 is regulated by the regulating screw 5, so that the axial stress of the fixed bone is regulated.
An eighth embodiment of the present invention, as shown in fig. 9, is different from the first embodiment in that a sliding hole 7 is provided on a steel plate body 1, the sliding hole 7 is communicated with a pressure regulating hole 10, a sliding plate 6 is installed in the sliding hole 7, a pressure regulating nail hole 3 is provided on the sliding plate 6, a pressure regulating device is installed on one side of the sliding plate 6, and the pressure regulating device can enable the sliding plate 6 to axially move along the sliding hole 7. The sliding hole 7 is a special-shaped sliding hole, namely, the opening of the upper surface of the steel plate body 1 is larger than the opening of the lower surface, and the special-shaped sliding hole 7 can effectively prevent the sliding plate 6 from falling off. The steel plate body 1 is provided with the anti-falling screw 15, so that the sliding plate 6 can be effectively prevented from sliding out of the sliding hole 7. By adjusting the sliding plate 6, the radial stress of the bone screw in the sliding plate 6 is adjusted, and the axial stress of the fixed bone is further adjusted.
As shown in fig. 10, the ninth embodiment of the present invention is different from the eighth embodiment in that the anti-drop screw 15 provided on the steel plate body 1 is replaced with an anti-drop plate 14, both ends of the anti-drop plate 14 are fastened to the steel plate body 1 to prevent the sliding plate 6 from sliding out of the sliding hole 7, the anti-drop plate 14 is in a belt shape, the pressure adjusting hole 10 is in a long groove shape, the position of the adjusting screw 5 in the pressure adjusting hole 10 is adjusted, and the radial stress of the bone screw in the pressure adjusting screw hole 3 is adjusted, thereby adjusting the axial stress of the fixed bone.
As shown in fig. 11 and 12, the tenth embodiment of the present invention is different from the ninth embodiment in that the anti-disengaging plate 14 is in a full-plate half-sleeve form, two ends of the anti-disengaging plate 14 are buckled on the steel plate body 1, the anti-disengaging plate 14 is provided with a long slot hole 16, the long slot hole 16 corresponds to the pressure regulating nail hole 4 on the sliding plate 6, and the axial dimension of the long slot hole 16 is larger than the dimension of the pressure regulating nail hole 4.
An eleventh embodiment of the present invention, as shown in fig. 13 and 14, is different from the tenth embodiment in that the anti-disengaging plate 14 is in a complete plate shape, and the upper and lower layers of the anti-disengaging plate 14 are provided with long slots 16.
A twelfth embodiment of the present invention, as shown in fig. 15 and 16, is different from the first embodiment in that a k needle round hole 17 is provided on the steel plate body for temporarily fixing a bone, and the upper surface of the steel plate body 1 is a cambered surface having a certain radian. As shown in fig. 17, 18, 19, 20, 21, one end of the steel plate body may be configured as an anatomic steel plate having a certain curvature in conformity with the anatomic shape of the human skeleton. Such as a proximal humerus pressure regulating steel plate, a distal fibula elastic steel plate, a distal humerus inner pressure regulating steel plate, a distal femur outer pressure regulating steel plate, a distal tibia inner pressure regulating steel plate, a proximal femur elastic steel plate, a medial tibia platform inner pressure regulating steel plate, a lateral tibia platform outer pressure regulating steel plate, a distal tibia outer pressure regulating steel plate, a distal humerus outer pressure regulating steel plate, a proximal ulna pressure regulating steel plate, a distal radius palm pressure regulating steel plate, a distal radius back pressure regulating steel plate, a finger, metacarpal metaphyseal T-shaped and L-shaped pressure regulating steel plate, and the like.
In the above embodiment, grooves may be provided on the lower surfaces of both sides of the steel plate body and the anti-drop plate for reducing the contact area between the steel plate body and the bone.
The above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments, for example, the form of the pressure adjusting device is replaced by the form of the second, third, fourth and fifth embodiments, the form of fixing the sliding plate, the fixing screw hole, the change of the arrangement of the pressure adjusting screw hole, or other combinations of the forms, etc., which are included in the scope of the present invention.
Claims (8)
1. An integrated pressure regulating steel plate is characterized in that,
The steel plate comprises a steel plate body, wherein a pressure regulating nail hole and a pressure regulating hole are formed in the steel plate body, a bone screw is arranged in the pressure regulating nail hole, a pressure regulating device is arranged in the pressure regulating hole and used for regulating radial stress of the bone screw in the pressure regulating nail hole, a fixing screw hole is formed in the steel plate body, the bone screw is also arranged in the fixing screw hole, the pressure regulating nail hole is communicated with the pressure regulating hole, and the radial stress of the bone screw in the pressure regulating nail hole is regulated in one of the following modes:
① The pressure regulating device comprises a screw and a pressure regulating screw hole which are arranged in the pressure regulating hole, the screw is in threaded connection with the steel plate body, the tail part of the screw is sleeved with a special-shaped gasket, the distal end of the special-shaped gasket is abutted against the bone screw, and the radial stress of the bone screw in the pressure regulating screw hole is regulated by changing the length of the special-shaped gasket, so that the axial stress of the fracture end is regulated;
② The pressure regulating device comprises a screw, a pressure regulating nail hole and a guide pillar, wherein the screw, the pressure regulating nail hole and the guide pillar are arranged in the pressure regulating hole, the screw is in threaded connection with the steel plate body, the tail part of the screw is abutted against one end of the guide pillar, the other end of the guide pillar is abutted against a bone screw in the pressure regulating nail hole, and the radial stress of the bone screw in the pressure regulating nail hole is regulated by changing the diameter of the tail part of the screw, so that the axial stress of a fracture end is regulated;
③ The pressure regulating device comprises a bolt, a pressure regulating nail hole and a guide pillar, wherein the bolt, the pressure regulating nail hole and the guide pillar are arranged in the pressure regulating hole, the bolt is in threaded connection with the steel plate body, the tail part of the bolt is abutted against one end of the guide pillar, a nut is arranged on the bolt, the other end of the guide pillar is abutted against a bone screw in the pressure regulating nail hole, the pressure regulating hole in the steel plate body is a pressure regulating long hole formed by at least two communicated screw holes, and the radial stress of the bone screw in the pressure regulating nail hole is regulated according to different positions of the bolt in the pressure regulating nail hole, so that the axial stress of a fracture end is regulated;
④ The pressure regulating device is a jackscrew arranged in the pressure regulating hole, the jackscrew is in threaded connection with the steel plate body, the top end of the jackscrew is abutted to a bone screw in the pressure regulating screw hole, the thickness of the steel plate at the pressure regulating hole section is thickened, the pressure regulating hole can protrude out of the upper surface of the steel plate body, and the radial stress of the bone screw in the pressure regulating screw hole is regulated by regulating the screwing depth of the jackscrew, so that the axial stress of the fracture end is regulated;
⑤ The pressure regulating device comprises two side fixing holes, a sliding baffle, fixing nails and guide posts in the pressure regulating holes, wherein the two side fixing holes are formed in the steel plate body, the side fixing holes are long holes formed in two sides of the steel plate body and are axially formed along the steel plate body, the long holes are at least two screw holes which are communicated, the sliding baffle is arranged on the steel plate body, screw holes are formed in the two ends of the sliding baffle, sliding posts are arranged in the middle of the sliding baffle, the sliding posts are abutted to one ends of the guide posts, the other ends of the guide posts are abutted to bone screws in the pressure regulating nail holes, the sliding posts can slide in the pressure regulating holes, the fixing nails fix the sliding baffle on the steel plate body, and then the axial stress of the bone screws in the pressure regulating nail holes is regulated according to different positions of the fixing nails in the side fixing holes.
2. The integrated pressure regulating steel sheet according to claim 1, wherein,
The pressure regulating nail hole, the pressure regulating hole and the set screw hole which are arranged on the steel plate body are one of the following forms:
① One end of the steel plate body is provided with at least two pressure regulating nail holes and at least one pressure regulating hole, the other end of the steel plate body is provided with at least two fixing screw holes, and the pressure regulating nail holes, the pressure regulating holes and the fixing screw holes are symmetrically arranged on the steel plate body;
② The two ends of the steel plate body are provided with pressure regulating nail holes and pressure regulating holes, and the pressure regulating nail holes and the pressure regulating holes are symmetrically arranged on the steel plate body and can be arranged in a straight line or in a staggered arrangement;
③ One end of the steel plate body fixing screw hole is set to be an anatomical plate which is consistent with anatomical form of the joint part of the four limbs of the human body, and the other end of the steel plate body is provided with at least two pressure regulating nail holes and at least one pressure regulating hole.
3. The integrated pressure regulating steel sheet according to claim 2, wherein,
The steel plate is characterized in that a sliding hole is formed in the steel plate body and is communicated with the pressure regulating hole, a sliding plate is arranged in the sliding hole, a pressure regulating nail hole is formed in the sliding plate, a pressure regulating device is arranged at one end of the sliding plate, and radial stress of the sliding plate is regulated through the pressure regulating device.
4. The integrated pressure regulating steel plate according to claim 3, wherein,
The sliding hole is a special-shaped sliding hole, the opening of the upper surface of the steel plate body is larger than the opening of the lower surface, and the radial length of the sliding hole is larger than that of the sliding plate.
5. The integrated pressure regulating steel plate according to claim 4, wherein,
The steel plate body is provided with at least two anti-falling screws, the anti-falling screws are in threaded connection with the steel plate body, and the tail parts of the anti-falling screws are pressed on the upper surface of the sliding plate to prevent the sliding plate from falling off.
6. The integrated pressure regulating steel plate according to claim 5, wherein,
The anti-drop plate is arranged on the sliding plate and is in sliding connection with the steel plate body, the anti-drop plate is in a strip shape, a strip shape at intervals and a full plate shape according to the covering size of the surface of the anti-drop plate, the anti-drop plate is arranged in a half-sleeve or full-sleeve form according to the connecting form of the anti-drop plate and the steel plate body, when the anti-drop plate is in the strip shape, two ends of the anti-drop plate are buckled on two sides of the steel plate body, when the anti-drop plate is in the full-sleeve form, long groove holes are formed in the upper surface and the lower surface of the anti-drop plate, the long groove holes correspond to pressure regulating nail holes of the sliding plate, when the anti-drop plate is in the half-sleeve form, the long groove holes correspond to the pressure regulating nail holes of the sliding plate, and the radial size of the long groove holes is larger than the size of the pressure regulating nail holes.
7. The integrated pressure regulating steel sheet according to claim 1, wherein,
The fixing screw hole arranged on the steel plate body is set to be a screw hole without threads or a locking screw hole with threads, or a long screw hole formed by combining the screw hole without threads and the locking screw hole with threads.
8. The integrated pressure regulating steel plate according to claim 7, wherein,
The steel plate body is a straight steel plate or an arc steel plate with a certain radian consistent with the shape of a bone, the upper surface and the lower surface of the steel plate body are radially provided with cambered surfaces with a certain radian, the steel plate body is provided with at least one Kirschner wire round hole for temporarily fixing the bone, and the lower surfaces of the two sides of the steel plate body and the anti-drop plate can be provided with grooves.
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| CN215874901U (en) * | 2020-09-26 | 2022-02-22 | 河南科科生物科技有限公司 | Integral type pressure regulating steel sheet |
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| CN104546101A (en) * | 2013-10-24 | 2015-04-29 | 纪玉清 | Dynamic fixing steel plate for fracture |
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