CN110960312A - Kirschner wire deviation rectifying system and universal nut adjusting assembly for correcting Kirschner wire deviation - Google Patents
Kirschner wire deviation rectifying system and universal nut adjusting assembly for correcting Kirschner wire deviation Download PDFInfo
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- CN110960312A CN110960312A CN201911244991.7A CN201911244991A CN110960312A CN 110960312 A CN110960312 A CN 110960312A CN 201911244991 A CN201911244991 A CN 201911244991A CN 110960312 A CN110960312 A CN 110960312A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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Abstract
The invention discloses a Kirschner wire deviation rectifying system and a universal nut adjusting assembly for correcting the Kirschner wire deviation, wherein four connecting rods are symmetrically connected between a chassis and a top disk of a frame, adjusting side seams positioned at two sides and upper and lower sliding side seams are respectively formed between the connecting rods, universal nuts are sleeved in the adjusting side seams at the two sides, and the Kirschner wire or a Kirschner wire sleeve or a connecting screw rod which is matched with a screw hole of the universal nut and is installed in a threaded manner is clamped in the upper and lower sliding side seams. After the frame is fixed through the central stud, the Kirschner wire or the Kirschner wire sleeve or the connecting screw rod positioned at the inner side of the frame can slide in parallel along the sliding side seam in the frame and can swing left and right or front and back, so that the aim of universal adjustment is fulfilled, and the problems of mutual restriction and interference of the Kirschner wires in the adjustment process are solved.
Description
Technical Field
The invention belongs to the technical field of auxiliary accessories of fracture positioning and fixing instruments, and particularly relates to a kirschner wire deviation rectifying system capable of automatically adapting to different kirschner wires to carry out different dimensions and angle regulation and a universal nut regulating assembly for rectifying deviation of the kirschner wires.
Background
Femoral shaft fractures and distal femoral fractures are common fractures in clinical practice. Surgical treatment is the preferred treatment method, and reduction butt joint and fixation are firstly carried out on two ends of a fracture part before intramedullary nail fixation and bone plate fixation are carried out. Traction is an important means for reducing femoral fracture and recovering the length of lower limbs. At present, a tractor used for the reduction of lower limb fracture patients in each hospital mainly comprises a traction rope and a pulley, one end of the traction rope is connected with a bracket at the fracture part, and the other end of the traction rope bypasses the pulley to suspend weights, and traction force is controlled by increasing the number of the weights or changing the weight of the weights manually. The patient lies in the sickbed and can move and bounce, so that the traction force is changed, and once the traction force is changed, the weight of the weight is adjusted. For the existing manual control method, the frequent replacement of the weights is very inconvenient, which not only increases the burden on the nursing staff in the hospital, but also brings trouble to the reduction of the fracture patient. On the other hand, because the one end of haulage rope is connected the fracture position distal end, and needs the traction dynamics great, leads to the fracture distal end to be followed the haulage rope direction only, and fracture distal end and near-end have crisscross and twist reverse the condition usually after the fracture, belongs to the rigidity through the mode of drawing the fracture distal end among the prior art and pulls, is difficult for rotating and swing the fracture to can't reach the best effect that resets.
The hollow nail rotating disc type positioning device for femoral neck fracture with publication number CN109223197A comprises a rotation adjusting mechanism, a transverse moving adjusting mechanism, a longitudinal moving adjusting mechanism and a universal joint positioning mechanism. The invention adopts the femoral neck guide pin as a fixed axis, and the installation position of the hollow nail is determined by the rotation of the rotary positioner. The hollow nail can be always kept to be in parallel with the femoral neck guide pin, and the hollow nail can be quickly and accurately positioned in parallel by the aid of the literature technology. However, the technology has the problems that the connecting rods used for adjusting the kirschner wires or for restricting the kirschner wires are mutually restricted, when any one connecting rod or the kirschner wire is adjusted, other kirschner wires in the three-dimensional structure can be driven to move or rotate in different degrees, so that the other kirschner wires or the connecting rods have prestress, the other kirschner wires or the connecting rods need to be adjusted again, the adjusting mode can be completed repeatedly, the adjusting process is troublesome, and the operation needs to be performed empirically, so that the operation efficiency is influenced to a certain extent.
Disclosure of Invention
Aiming at the problems of a turntable type positioning device for a femoral neck fracture hollow nail with publication number CN109223197A, the invention provides a technology with a universal adjusting function, which is used for the purpose of self-adaptive adjustment, does not influence the adjustment of other Kirschner wires or connecting rods, and is not influenced by the adjustment of other Kirschner wires or connecting rods.
The technical scheme adopted by the invention for solving the technical problems is as follows: a Kirschner wire deviation rectifying system comprises a Kirschner wire or a Kirschner wire sleeve or a connecting screw rod, a frame and a universal nut, wherein the frame comprises a base plate and a top plate, four connecting rods are symmetrically connected between the base plate and the top plate, adjusting side seams positioned at two sides and sliding side seams positioned up and down are respectively formed between the connecting rods, and the inner sides of the connecting rods are respectively provided with a concave cambered surface; universal nuts are sleeved in the adjusting side seams at the two sides, spherical supports are arranged at the edge positions of the two sides of a screw hole of each universal nut, the spherical supports are sleeved in a combined column cavity formed by concave cambered surfaces at the inner sides of the connecting rods in a matching manner, and the spherical supports are supported at the inner side surfaces of the concave cambered surfaces; and the kirschner wire or the kirschner wire sleeve or the connecting screw rod which is matched with the screw hole of the universal nut and is installed in a threaded manner is clamped in the upper and lower sliding side seams.
And the centers of the bottom plate and the top plate are outwards and vertically fixed with a central stud or an auxiliary extension seat or an auxiliary connecting rod. The diameter of the kirschner wire or the kirschner wire sleeve or the connecting screw is smaller than the width of the upper and lower sliding side seams; the thickness of the universal nut is smaller than the width of the adjusting side seam on the two sides. The end face of the top disc is provided with an assembling hole, and the universal nut can be sleeved in the assembling hole.
A universal nut adjusting assembly for correcting the deviation of a Kirschner wire comprises three groups of Kirschner wire deviation correcting systems and a triangular piece, wherein the triangular piece comprises a longitudinal through pipe, and a vertical pipe and a transverse pipe are vertically connected with the longitudinal through pipe; the Kirschner wire deviation rectifying system comprises a Kirschner wire or a Kirschner wire sleeve or a connecting screw rod, a frame and a universal nut, wherein the frame comprises a base plate and a top plate, four connecting rods are symmetrically connected between the base plate and the top plate, adjusting side seams positioned at two sides and sliding side seams positioned at the upper part and the lower part are respectively formed between the connecting rods, the universal nut is sleeved in the adjusting side seams at the two sides, the Kirschner wire or the Kirschner wire sleeve or the connecting screw rod which is matched with a screw hole of the universal nut and is in threaded installation is clamped in the sliding side seams at the upper part and the lower part, spherical supports are arranged at the edge positions of two sides of the screw hole of the universal nut, concave arc surfaces are respectively arranged at the inner; the Kirschner wire or the Kirschner wire sleeve is arranged in the universal nut of one group of Kirschner wire correction system, the Kirschner wire or the Kirschner wire sleeve at the position penetrates through the cavity of the vertical through pipe, the connecting screw rods are arranged in the universal nuts of the other two groups of Kirschner wire correction systems, the connecting screw rods are respectively arranged in the vertical pipe and the transverse pipe of the triangular piece, and the frames of the three groups of Kirschner wire correction systems are respectively fixed or synchronously rotated or moved. And the centers of the bottom plate and the top plate are outwards and vertically fixed with a central stud or an auxiliary extension seat or an auxiliary connecting rod. The diameter of the kirschner wire or the kirschner wire sleeve or the connecting screw is less than or equal to the width of the upper and lower sliding side seams. The end face of the top disc is provided with an assembly hole, and the universal nut can be sleeved in the assembly hole. The side wall of the vertical through pipe is provided with a locking hole and a lock pin.
The invention has the beneficial effects that: after the frame is fixed through the central stud, the Kirschner wire or the Kirschner wire sleeve or the connecting screw rod positioned at the inner side of the frame can slide in parallel along the sliding side seam in the frame and can swing left and right or front and back, so that the aim of universal adjustment is fulfilled. No matter sliding or swinging, the spherical support of the universal nut can be supported on the inner side surface of each concave cambered surface to form a supporting relation. The structure of the invention can ensure that the adjustment performance of other kirschner wires is not restricted when the kirschner wire, the sleeve of the kirschner wire or the connecting screw rod is adjusted up and down, and the structure is mainly applied to restricting and resetting the fracture part by simultaneously utilizing a plurality of kirschner wires, is used for overcoming the problems of mutual restriction and interference of the kirschner wires in the adjustment process, and achieves the aim of not influencing the adjustment of the kirschner wires when the adjustment is carried out along a certain angle (axial direction). And the two ends of the fracture can be adjusted manually to realize reduction.
The invention can further install jackscrews at corresponding positions on the base plate and the top plate respectively, and the jackscrews at two ends are used for restraining the Kirschner wire or the Kirschner wire sleeve or the connecting screw rod which are adjusted in place.
The universal nut adjusting assembly can realize multidimensional free adjustment of the target Kirschner wire, and the adjustment of any Kirschner wire correcting system does not influence the translation adjustment and the angle adjustment of the other Kirschner wire correcting systems, so that the Kirschner wire correcting systems can be adjusted independently without interference, and the aim of quickly adjusting the target Kirschner wire in place is fulfilled.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a deviation rectifying system for Kirschner wires according to the present invention.
FIG. 2 is a second schematic diagram of the three-dimensional structure of the deviation rectifying system for Kirschner wire of the present invention.
Fig. 3 is a schematic cross-sectional structure of fig. 1.
Fig. 4 is a cross-sectional enlarged schematic view of the universal nut of fig. 3.
FIG. 5 is a schematic diagram of the usage status of the Kirschner wire correction system.
FIG. 6 is a perspective view of the universal nut adjustment assembly of the present invention.
Fig. 7 is an enlarged schematic view of the triangle of fig. 6.
Fig. 8 is a schematic view of the use state of fig. 6.
Reference numbers in the figures: the Kirschner wire 1, the frame 2, the bottom plate 21, the top plate 22, the connecting rod 23, the adjusting side seam 24, the sliding side seam 25, the central stud 26, the locking nut 27, the assembling hole 28 and the concave cambered surface 29; the universal nut 3, the nut body 31, the spherical support 32, the screw hole 33, the connecting screw rod 4, the triangle 5, the vertical through pipe 51, the vertical pipe 52, the horizontal pipe 53, the pipe cavity 54, the locking hole 55, the auxiliary extension seat 6 and the auxiliary connecting rod 7.
Detailed Description
Example 1: the kirschner wire correction system shown in fig. 1 is an assembly for adjusting a kirschner wire 1 or a kirschner wire sleeve by using a universal nut. When the Kirschner wire 1 is adjusted, the surface of the Kirschner wire 1 is required to be provided with threads, and when the Kirschner wire sleeve is adjusted, the surface of the Kirschner wire sleeve is required to be provided with a nut, and the Kirschner wire is fixedly sleeved in the Kirschner wire sleeve. When the system is adjusted, the lower part of the Kirschner wire is screwed into the bone, namely the lower part of the Kirschner wire is fixed, so that the universal nut 3 is rotated to ensure that the Kirschner wire 1 or the Kirschner wire sleeve cannot rotate and only moves axially. After the frame 2 is fixed by the central stud 26, the kirschner wire 1 or the kirschner wire sleeve positioned at the inner side of the frame 2 can slide in parallel along the sliding side seam 25 in the frame 2, and can swing left and right or back and forth, so that the purpose of universal adjustment is achieved.
As shown in fig. 1-3, the kirschner wire correction system includes a kirschner wire 1 or a kirschner wire sleeve, a frame 2, and a universal nut 3. Specifically, as shown in fig. 2, the frame 2 includes a bottom plate 21 and a top plate 22, and four connecting rods 23 are symmetrically connected between the bottom plate 21 and the top plate 22, and each two connecting rods are square rods. The adjusting side slits 24 and the sliding side slits 25 are formed at both sides and up and down between the links 23. The adjusting side seams 24 on the two sides are internally sleeved with universal nuts 3.
The universal nut 3 shown in fig. 2 comprises a nut body 31, a spherical support 32 and a screw hole 33, wherein the spherical support 32 is arranged at the edge of two sides of the screw hole 33. The kirschner wire 1 or the kirschner wire sleeve which is matched with the screw hole 33 of the universal nut 3 and is installed in a threaded mode is clamped in the upper sliding side seam 25 and the lower sliding side seam 25. The k-wire 1 or k-wire sleeve can slide laterally with the gimbaled nut 3. Furthermore, the k-wire 1 or k-wire sleeve can be adjusted for axial movement by the gimbaled nut 3.
As shown in fig. 3 and 4, the inner side of each connecting rod 23 is provided with a concave arc surface 29, and the spherical support 32 is sleeved on the inner side surface of each concave arc surface 29 in a matching manner; the centers of the bottom plate 21 and the top plate 22 are outwards vertically fixed with a central stud 26 and fixed by a locking nut 27. The k-wire 1 or k-wire sleeve can thus be swung transversely together with the universal nut 3.
As can be seen from fig. 3, the diameter of the k-wire 1 or of the k-wire sleeve is significantly smaller than the width of the upper and lower sliding side slots 25, so that the k-wire 1 or the k-wire sleeve can be pivoted longitudinally together with the universal nut 3.
As shown in fig. 5, the above-mentioned kirschner wire 1 or the kirschner wire sleeve always has a supporting relationship in which the spherical support 32 of the universal nut 3 can be supported on the inner side surfaces of the concave arc surfaces 29 regardless of the transverse sliding, the transverse swinging, or the longitudinal swinging with the universal nut 3. The structure can ensure that the adjustment performance of other kirschner wires is not restricted when the kirschner wire 1 or the kirschner wire sleeve is adjusted in a lifting way, and the structure is mainly applied to restriction and reduction of fracture parts by simultaneously utilizing a plurality of kirschner wires and is used for overcoming the problems of mutual restriction and interference of the kirschner wires in the adjustment process so as to achieve the aim of adjusting the kirschner wires along a certain angle (axial direction) without influencing the adjustment of the kirschner wires. And the two ends of the fracture can be adjusted manually to realize reduction.
Example 2: in addition to example 1, the width of the sliding side slit 25 of the k-wire 1 or the k-wire sleeve is designed to be equal to the width of the upper and lower sliding side slits, but the k-wire 1 or the k-wire sleeve cannot swing laterally unlike example 1, and the other cases are the same.
Example 3: in embodiment 1, a fitting hole 28 is provided in an end surface of the top plate 22, and the universal nut 3 can be fitted into the fitting hole 28.
Example 4: on the basis of the embodiments 1 to 3, in this embodiment, jackscrews are further respectively installed at corresponding positions on the bottom plate 21 and the top plate 22, and the jackscrews at the two ends are used for restraining the kirschner wire 1 or the kirschner wire casing pipe which is already adjusted in place.
Example 5: a universal nut adjusting assembly for correcting the deviation of a Kirschner wire is shown in figure 6 and comprises three groups of Kirschner wire deviation correcting systems and a triangular piece 5. The triangular piece 5 comprises a longitudinal through pipe 51, a vertical pipe 52 and a transverse pipe 53 which are vertically connected with the longitudinal through pipe 51, and a kirschner wire penetrates through and is sleeved in a pipe cavity 54 of the longitudinal through pipe 51, as shown in fig. 7. The end face of the top plate 22 is provided with a fitting hole 28, and the universal nut 3 can be fitted into the fitting hole 28.
The kirschner wire deviation correcting system is shown in figures 1-4, and comprises a kirschner wire 1 or a kirschner wire sleeve or a connecting screw rod, a frame 2 and a universal nut 3. The frame 2 comprises a bottom plate 21 and a top plate 22, four connecting rods 23 are symmetrically connected between the bottom plate 21 and the top plate 22, and adjusting side seams 24 positioned at two sides and sliding side seams 25 positioned up and down are respectively formed between the connecting rods 23. The adjusting side seams 24 on the two sides are internally sleeved with universal nuts 3. The kirschner wire 1 or the kirschner wire sleeve or the connecting screw rod which is matched with the screw hole 33 of the universal nut 3 and is installed in a threaded mode is clamped in the upper sliding side seam 25 and the lower sliding side seam 25.
The universal nut 3 is characterized in that spherical supports 32 are arranged at the edges of two sides of a screw hole 33 of the universal nut 3, concave arc surfaces 29 are respectively arranged on the inner sides of the connecting rods 23, and the spherical supports 32 are sleeved on the inner side surfaces of the concave arc surfaces 29 in a matching mode. The center of the bottom plate 21 and the top plate 22 is fixed with a center stud 26 outwards and vertically.
The Kirschner wire 1 or the Kirschner wire sleeve is arranged in the universal nut 3 of one group of the Kirschner wire correction systems, the Kirschner wire 1 or the Kirschner wire sleeve at the position penetrates through and is fixed in the tube cavity 54 of the longitudinal through tube 51, the universal nuts 3 of the other two groups of the Kirschner wire correction systems are internally provided with connecting screw rods, and each connecting screw rod is respectively arranged in the vertical tube 52 and the transverse tube 53 of the triangular piece.
The universal nut adjusting assembly in the embodiment can realize multidimensional free adjustment of the target Kirschner wire, the adjustment of any Kirschner wire correction system does not influence the translation adjustment and the angle adjustment of other Kirschner wire correction systems, and the adjustment of any Kirschner wire correction system is not influenced by the translation adjustment and the angle adjustment of other Kirschner wire correction systems. Therefore, the Kirschner wire deviation rectifying systems can be adjusted independently without mutual interference, and the Kirschner wire deviation rectifying system has the advantages of high adjusting efficiency and the like.
Claims (9)
1. A Kirschner wire deviation rectifying system is characterized by comprising a Kirschner wire (1) or a Kirschner wire sleeve or a connecting screw rod, a frame (2) and a universal nut (3), wherein the frame (2) comprises a base plate (21) and a top plate (22), four connecting rods (23) are symmetrically connected between the base plate (21) and the top plate (22), adjusting side seams (24) positioned at two sides and sliding side seams (25) positioned up and down are respectively formed between the connecting rods (23), and the inner sides of the connecting rods (23) are respectively provided with a concave arc surface (29); universal nuts (3) are sleeved in the adjusting side seams (24) on the two sides, spherical supports (32) are arranged on the edges of the two sides of a screw hole (33) of each universal nut (3), the spherical supports (32) are sleeved in a combined column cavity formed by concave arc surfaces (29) on the inner sides of the connecting rods (23) in a matching mode, and the spherical supports (32) are supported on the inner sides of the concave arc surfaces (29); the Kirschner wire (1) or the Kirschner wire sleeve or the connecting screw rod which is matched with the screw hole (33) of the universal nut (3) and is installed in a threaded manner is clamped in the upper and lower sliding side seams (25).
2. The kirschner wire deviation rectifying system according to claim 1, wherein a central stud (26) or an auxiliary extension seat (6) or an auxiliary connecting rod (7) is vertically fixed outwards at the center of the bottom plate (21) and the top plate (22).
3. The kirschner wire correction system of claim 1, wherein the diameter of the kirschner wire (1) or the kirschner wire sleeve or the connecting screw is smaller than the width of the upper and lower sliding side seams (25); the thickness of the universal nut (3) is smaller than the width of the adjusting side seam (24) on the two sides.
4. The kirschner wire deviation rectifying system according to claim 1, wherein an assembly hole (28) is formed in an end surface of the top plate (22), and the universal nut (3) can be sleeved in the assembly hole (28).
5. A universal nut adjusting assembly for correcting a Kirschner wire is characterized by comprising three groups of Kirschner wire correcting systems and a triangular piece (5), wherein the triangular piece (5) comprises a longitudinal through pipe (51), and a vertical pipe (52) and a horizontal pipe (53) are vertically connected with the longitudinal through pipe (51); the Kirschner wire deviation rectifying system comprises a Kirschner wire (1) or a Kirschner wire sleeve or a connecting screw rod, a frame (2) and a universal nut (3), wherein the frame (2) comprises a chassis (21) and a top disc (22), four connecting rods (23) are symmetrically connected between the chassis (21) and the top disc (22), adjusting side seams (24) positioned at two sides and sliding side seams (25) positioned up and down are respectively formed between the connecting rods (23), the universal nut (3) is sleeved in the adjusting side seams (24) at the two sides, the Kirschner wire (1) or the Kirschner wire sleeve or the connecting screw rod which are matched with a screw hole (33) of the universal nut (3) in threaded installation are clamped in the sliding side seams (25) at the upper part and the lower part, spherical supports (32) are arranged at the edge positions at two sides of the screw hole (33) of the universal nut (3), and concave arc surfaces (29) are respectively arranged, the spherical support (32) is sleeved on the inner side surface of each concave cambered surface (29) in a matching way; the Kirschner wire (1) or the Kirschner wire sleeve is arranged in the universal nut (3) of one group of the Kirschner wire correction system, the Kirschner wire (1) or the Kirschner wire sleeve at the position penetrates through and is fixed in a tube cavity (54) of a longitudinal through tube (51), connecting screw rods are arranged in the universal nuts (3) of the other two groups of the Kirschner wire correction systems, each connecting screw rod is respectively arranged in a vertical tube (52) and a transverse tube (53) of a triangular piece, and frames (2) of the three groups of the Kirschner wire correction systems are respectively fixed or synchronously rotated or moved.
6. The Kirschner wire deviation rectifying universal nut adjusting assembly according to claim 5, wherein a central stud (26) or an auxiliary extension base (6) or an auxiliary connecting rod (7) is vertically fixed outwards at the center of the bottom plate (21) and the top plate (22).
7. The cardan nut adjusting assembly for correcting the deviation of the kirschner wire according to claim 5, wherein the diameter of the kirschner wire (1) or the sleeve of the kirschner wire or the connecting screw is smaller than or equal to the width of the upper and lower sliding side seams (25).
8. The universal nut adjusting assembly for correcting the Kirschner wire deviation as claimed in claim 5, wherein an assembling hole (28) is formed in the end surface of the top plate (22), and the universal nut (3) can be sleeved in the assembling hole (28).
9. The adjusting assembly of the universal nut for correcting the deviation of the Kirschner wire as claimed in claim 5, wherein the side wall of the longitudinal through pipe (51) is provided with a locking hole (55) and a locking pin is installed.
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CN201911244991.7A CN110960312B (en) | 2019-12-06 | 2019-12-06 | Kirschner wire deviation correcting system and universal nut adjusting assembly for Kirschner wire deviation correcting |
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CN201911244991.7A CN110960312B (en) | 2019-12-06 | 2019-12-06 | Kirschner wire deviation correcting system and universal nut adjusting assembly for Kirschner wire deviation correcting |
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CN110960312B CN110960312B (en) | 2023-04-25 |
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