CN110916793A

CN110916793A - Reduction device for hip fracture operation

Info

Publication number: CN110916793A
Application number: CN201911247507.6A
Authority: CN
Inventors: 马文龙; 陈柯; 赵熙熹; 田可为; 范克杰
Original assignee: Luoyang Orthopaedic Hospital Of Henan Province (henan Orthopaedic Hospital)
Current assignee: Luoyang Orthopaedic Hospital Of Henan Province (henan Orthopaedic Hospital); Luoyang Orthopedic Traumatological Hospital of Henan Orthopedic Hospital
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-03-27

Abstract

A hip fracture operation resetting device is characterized in that an outer box body capable of moving back and forth is mounted at the upper end of a bottom plate, an inner box body capable of moving up and down is mounted inside the outer box body, a small box body capable of moving left and right and turning back and forth in a small range is mounted at the left end of the inner box body, a square plate capable of moving up and down is mounted at the lower end of the small box body, and a clamping structure is mounted at the lower end of the square plate; when the driving straight gear is meshed with the first straight gear, a structure which enables the outer box body to move back and forth can be formed, when the driving straight gear is meshed with the second straight gear, a structure which enables the inner box body to move up and down can be formed, when the driving straight gear is meshed with the third straight gear, a structure which enables the small box body to move left and right can be formed, when the driving straight gear is meshed with the fourth straight gear, a structure which enables the small box body to turn back and forth in a small amplitude can be formed, and when the driving straight gear is meshed with the fifth straight gear, a structure which enables the square plate to move up and down can be formed; the reset device is convenient to use and wide in range through four-degree-of-freedom adjustment.

Description

Reduction device for hip fracture operation

Technical Field

The invention relates to the field of medical equipment, in particular to a hip fracture operation reduction device.

Background

When a hip reduction operation is performed on a patient, a medical worker needs to drive a reduction nail to the position of a hip bone needing to be reduced, then the medical worker pulls or presses the reduction nail again to reduce the hip bone of the patient, the hip bone enables the position of the human body to be the hardest, great effort is taken in the process of reducing the hip bone, the regulation and control precision is low when the user resets the hip bone, the manipulation is difficult, the use is not easy, the existing device is not suitable for use, a hip fracture operation reduction device is needed at present, the height, the thickness and the size of each patient are different from the position of the hip bone needing to be corrected, the hip bone belongs to an irregular shape, and the hip bone can be corrected by exerting force on the inclined part of the hip bone needing to be reduced, so that the regulation operation reduction device capable of being adjusted in a front-back, left-right, up-down and.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the hip fracture operation reduction device which can respectively and independently control the forward and backward movement, the upward and downward movement, the leftward and rightward movement and the oblique adjustment, is labor-saving in the operation process, high in precision and easy to master, can accurately reduce the hip bone, is also provided with the clamping structure, is convenient for clamping the reduction nail to adjust the position of the hip bone, and effectively solves the problems of labor waste, low regulation and control precision, difficulty in master control and the like in the operation process.

In order to solve the problems, the invention adopts the technical scheme that:

a hip fracture operation resetting device comprises a base plate, wherein an outer box body capable of moving back and forth is mounted at the upper end of the base plate, an inner box body capable of moving up and down is mounted inside the outer box body, a small box body capable of moving left and right and turning back and forth in a small amplitude is mounted at the left end of the inner box body, a square plate capable of moving up and down is mounted at the lower end of the small box body, and a clamping structure is mounted at the lower end of the square plate;

the inner wall of the inner box body is provided with a driving shaft which can move up and down, left and right and can rotate, the outer surface of the driving shaft is connected with a driving straight gear in a sliding manner, the rear end of the driving straight gear is provided with a connecting shaft, and the outer surface of the connecting shaft is respectively and rotatably connected with a first straight gear, a second straight gear, a third straight gear, a fourth straight gear and a fifth straight gear from right to left; when the driving straight gear is meshed with the first straight gear, a structure which enables the outer box body to move back and forth can be formed, when the driving straight gear is meshed with the second straight gear, a structure which enables the inner box body to move up and down can be formed, when the driving straight gear is meshed with the third straight gear, a structure which enables the small box body to move left and right can be formed, when the driving straight gear is meshed with the fourth straight gear, a structure which enables the small box body to turn back and forth in a small amplitude can be formed, and when the driving straight gear is meshed with the fifth straight gear, a structure which enables the square plate to move up and down can be formed.

Preferably, the surface of the right end of the first straight gear is fixedly connected with a first driving belt wheel, the lower end of the first driving belt wheel is connected with a first driven belt wheel, the right end of the first driven belt wheel is coaxially and fixedly connected with a first small bevel gear, the left side of the lower end of the first small bevel gear is meshed with a second small bevel gear, the center of the second small bevel gear is fixedly connected with a first telescopic rod, the lower end of the outer surface of the first telescopic rod is fixedly connected with a first bevel gear, the rear side of the lower end of the first bevel gear is meshed with a first large bevel gear, the center of the first large bevel gear is fixedly connected with a first threaded barrel, and the inner part of the first threaded barrel is in threaded; the right side of the surface of the upper end of the bottom plate is provided with a long rectangular groove, and the first threaded rod is fixedly connected to the inner wall of the long rectangular groove.

Preferably, second straight-tooth gear right-hand member fixedly connected with second driving pulley, second driving pulley rear end area are connected with second driven pulleys, the coaxial rigid coupling in second driven pulleys left end has second bevel gear, the meshing of second bevel gear lower extreme left side has the big bevel gear of second, the big bevel gear center fixedly connected with cylinder of department of second, cylinder rotates to be connected in inner box inner wall bottom, the inboard fixedly connected with second threaded rod of cylinder, end screw thread connection has a second screw thread section of thick bamboo under the second threaded rod surface, second screw thread section of thick bamboo fixed connection is in outer box inner wall bottom.

Preferably, a third driving pulley is fixedly connected to the right end of the third straight gear, a third driven pulley is connected to the rear end of the third driving pulley in a belt manner, a third small bevel gear is coaxially and fixedly connected to the left end of the third driven pulley, a fourth small bevel gear is meshed to the left side of the lower end of the third small bevel gear, a universal joint is coaxially and fixedly connected to the upper end of the fourth small bevel gear, a second telescopic rod is fixedly connected to the upper end of the universal joint, a third bevel gear is fixedly connected to the upper end of the outer surface of the second telescopic rod, a third large bevel gear is meshed to the right side of the upper end of the third bevel gear, a third threaded cylinder is fixedly connected to the center of the third large bevel gear, a third threaded rod is in threaded connection with the inside of the third threaded cylinder, and the surface;

the right end of the fourth straight gear is fixedly connected with a fourth driving pulley, the rear side end of the lower end of the fourth driving pulley is connected with a fourth driven pulley, the left end of the fourth driven pulley is coaxially and fixedly connected with a fifth small bevel gear, the rear side of the left end of the fifth small bevel gear is meshed with a sixth small bevel gear, the rear end of the sixth small bevel gear is coaxially and fixedly connected with a worm, the upper end of the worm is meshed with a worm gear, the left end of the worm gear is coaxially and fixedly connected with a driven straight gear, the lower end of the driven straight gear is meshed with a gear ring, the upper end of the outer surface of the gear ring is meshed with a planetary gear, the upper end of the planetary gear is meshed with a gear;

the rear end of the fifth straight gear is meshed with a large straight gear, a third telescopic rod is fixedly connected to the center of the large straight gear, a large cylindrical through hole is formed in the lower side of the middle of the surface of the right end of the small box body, the outer surface of the third telescopic rod is rotatably connected to the inner wall of the large cylindrical through hole, a fourth large bevel gear is fixedly connected to the left end of the outer surface of the third telescopic rod, a fifth large bevel gear is meshed to the lower end of the left side of the fourth large bevel gear, a fourth threaded barrel is fixedly connected to the center of the fifth large bevel gear, and a fourth threaded rod is in threaded connection with the inner; the middle part of the upper end surface of the square plate is fixedly connected with a fourth telescopic cylinder, the bottom end of the inner wall of the fourth telescopic cylinder is fixedly connected to the lower end surface of a fourth threaded rod, and the upper end surface of the fourth telescopic cylinder is fixedly connected to the middle part of the lower end surface of the small box body.

Preferably, the surfaces of the left end and the right end of the driving straight gear are rotatably connected with a square frame, the surface of the upper end of the square frame is fixedly connected with an adjusting handle, and the middle part of the outer surface of the adjusting handle is fixedly connected with a clamping block; the upper end surface of the inner box body corresponding to the adjusting handle is provided with a key-shaped through hole, the upper end surface of the inner box body corresponding to the upper end of the driving straight gear is respectively and sequentially provided with five clamping grooves capable of being matched with the clamping blocks from right to left, and the clamping grooves are respectively communicated with the key-shaped through hole; the middle of the surface of the lower end of the square frame is fixedly connected with cylindrical pins, and round pin holes matched with the cylindrical pins are formed in the bottom end surfaces of the inner walls of the five inner boxes corresponding to the clamping grooves.

Preferably, the clamping structure comprises a supporting column, the upper end surface of the supporting column is fixedly connected to the lower end surface of the square plate, the lower end surface of the supporting column is fixedly connected with a mounting box, the front end surface and the rear end surface of the mounting box are slidably connected with supporting plates, the lower end of the outer surface of each supporting plate is fixedly connected with a baffle with a hole, the lower end surface of each supporting plate is fixedly connected with a round baffle, the outer surface of each round baffle is hinged with four evenly-distributed grippers, the inner sides of the grippers are hinged with connecting rods, and the inner;

the mounting box is characterized in that an upper chute barrel is fixedly connected to the upper end inside the mounting box, a lower chute barrel is fixedly connected to the lower end inside the mounting box, and a cylindrical stop block is slidably connected to the inner walls of the upper chute barrel and the lower chute barrel.

The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:

1. the hip correction device can independently control the front-back, left-right, up-down and front-back overturning adjustment of the small box body according to the body type and symptoms of a patient, indirectly adjust the position of the clamping structure, correct the hip bone of the patient more accurately, and is simple to operate and convenient to use.

2. The invention has high regulation precision when in use, the displacement of the screw and the screw cylinder is small, the screw and the screw cylinder with the self-locking structure can not rebound in the regulation process, the regulated displacement is easy to control, and the error of hip dislocation of a patient is reduced when the patient is reset in an operation.

3. The clamping structure is convenient to use, can automatically clamp or loosen the reduction nail through small-amplitude up-and-down movement, is convenient to operate, has high clamping degree, and cannot slide off in the operation process of hip reduction surgery.

4. The hip bone reposition instrument is time-saving and labor-saving in use, and can precisely reposition and regulate the hip bone to be repositioned by rotating the rotary handle in use.

Drawings

Figure 1 is a schematic overall appearance of a reduction device for hip fracture surgery according to the present invention.

Fig. 2 is a schematic view of the internal structure of a reduction device for hip fracture surgery according to the present invention.

Fig. 3 is a schematic diagram of the front and back movement structure of the outer box of the reduction device for hip fracture surgery of the present invention.

Fig. 4 is a schematic view of the up-and-down moving structure of the inner box body of the reduction device for hip fracture surgery of the invention.

Fig. 5 is a schematic diagram of the left-right movement structure of the third threaded rod of the reduction device for hip fracture surgery.

Fig. 6 is a schematic view of the forward and backward movement structure of the third threaded rod of the reduction device for hip fracture surgery of the present invention.

Fig. 7 is a schematic structural view of the forward and backward movement part of the third threaded rod of the reduction device for hip fracture surgery of the present invention.

Figure 8 is a schematic view of the movement structure of the third threaded rod of the reduction device for hip fracture surgery of the present invention.

Figure 9 is a schematic partial external view of a hip fracture surgical reduction apparatus of the present invention.

Figure 10 is a front cross-sectional view of the inner housing of a hip fracture surgical reduction apparatus of the present invention.

Figure 11 is a front elevational view, in cross-section, of the inner housing of a reduction device for hip fracture surgery of the present invention.

Figure 12 is a front half cross-sectional view of the inner housing of a hip fracture surgical reduction apparatus of the present invention.

Figure 13 is a rear half sectional view of the inner housing of a hip fracture surgical reduction apparatus of the present invention.

Figure 14 is a cross-sectional view of a small housing of a hip fracture surgical reduction device of the present invention.

Figure 15 is a schematic view of the clamping structure of the reduction device for hip fracture surgery of the present invention.

Figure 16 is a schematic view of the clamping structure of a reduction device for hip fracture surgery of the present invention expanded.

Figure 17 is an open cross-sectional view of the clamping structure of a hip fracture surgical reduction apparatus of the present invention.

Figure 18 is a cross-sectional view of the clamp arrangement clamping of a hip fracture surgical reduction device of the present invention.

Figure 19 is a block diagram of the adjustment handle of a reduction device for hip fracture surgery of the present invention.

Reference numbers in the figures: 1-inner box body, 2-outer box body, 3-bottom plate, 4-rotating handle, 5-small box body, 8-parallel shaft coupler, 9-driving straight gear, 10-adjusting handle, 11-first straight gear, 12-first driving pulley, 13-first belt, 14-first threaded rod, 15-first large bevel gear, 16-first threaded barrel, 17-connecting shaft, 18-first driven pulley, 19-first small bevel gear, 20-second small bevel gear, 21-first telescopic rod, 22-first bevel gear, 23-second straight gear, 24-second driving pulley, 25-second belt, 26-second driven pulley, 27-second bevel gear, 28-second large bevel gear, 29-second threaded rod, 30-second threaded cylinder, 31-third spur gear, 32-third driving pulley, 33-third belt, 34-third driven pulley, 35-third small bevel gear, 36-fourth small bevel gear, 37-universal joint, 38-second telescopic rod, 39-third bevel gear, 40-third large bevel gear, 41-third threaded cylinder, 42-third threaded rod, 43-fourth spur gear, 44-fourth driving pulley, 45-fourth belt, 46-fourth driven pulley, 47-fifth small bevel gear, 48-sixth small bevel gear, 49-worm, 50-worm gear, 51-driven spur gear, 52-gear ring, 53-planetary gear, 54-gear rail, 56-fifth spur gear, 58-third telescopic rod, 59-a fourth large bevel gear, 60-a fifth large bevel gear, 61-a fourth threaded rod, 62-a fourth telescopic cylinder, 63-a square plate, 64-a support column, 65-a mounting box, 66-a connecting rod, 67-a gripper, 68-a support plate, 69-a circular baffle, 70-a baffle with a hole, 71-a cylindrical stop, 72-an upper chute cylinder, 73-a lower chute cylinder, 74-a large spur gear, 76-a cylindrical cylinder, 77-a fourth threaded cylinder, 78-a square frame, 79-a clamping block, 80-a driving shaft and 81-a cylindrical pin.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-19, the present invention provides a hip fracture operation reduction device, which comprises a base plate 3, wherein an outer box 2 capable of moving forward and backward is installed at the upper end of the base plate 3, an inner box 1 capable of moving up and down is installed inside the outer box 2, a small box 5 capable of moving left and right and turning back and forth in a small amplitude is installed at the left end of the inner box 1, a square plate 63 capable of moving up and down is installed at the lower end of the small box 5, and a clamping structure is installed at the lower end of the square plate 63;

a driving shaft 80 which can move up and down, left and right and can rotate is installed on the inner wall of the inner box body 1, a driving straight gear 9 is connected to the outer surface of the driving shaft 80 in a sliding mode, a connecting shaft 17 is installed at the rear end of the driving straight gear 9, and a first straight gear 11, a second straight gear 23, a third straight gear 24, a fourth straight gear 43 and a fifth straight gear 56 are sequentially connected to the outer surface of the connecting shaft 17 in a rotating mode from right to left; when the driving spur gear 9 is engaged with the first spur gear 11, a structure for moving the outer box 2 forward and backward, when the driving spur gear 9 is engaged with the second spur gear 23, a structure for moving the inner box 1 up and down, when the driving spur gear 9 is engaged with the third spur gear 31, a structure for moving the small box 5 left and right, when the driving spur gear 9 is engaged with the fourth spur gear 43, a structure for turning the small box 5 forward and backward by a small amount, and when the driving spur gear 9 is engaged with the fifth spur gear 56, a structure for moving the square plate 63 up and down can be formed.

When in use, the bottom plate 3 is fixedly connected on a sickbed, and the bottom plate 3 is used for supporting a core bearing plate of the whole device; when patients are subjected to reduction surgery, an adjustable reduction device is needed because each patient has different sizes and fatness; the hip bone is the hardest bone of the human body at the lower side of the back and the upper end of the buttocks, and belongs to an irregular shape, and when the hip bone is used for assisting a patient to reset, the patient can be corrected only by obliquely exerting force on a part needing to reset, so that the hip bone can meet the requirement by a device which can be turned back, forth, left, right, up and down and can be turned over; the inner box body 1 is connected to the inner wall of the outer box body 2 in a sliding mode, the outer box body 2 is connected to the surface of the upper end of the bottom plate 3 in a sliding mode, the front and back movement of the outer box body 2 is used for indirectly achieving the front and back movement of the small box body 5, the up and down movement of the inner box body 1 is used for indirectly achieving the up and down movement of the small box body 5, the up and down, left and right movement, front and back movement and small-amplitude turning of the small box body 5 are used for indirectly achieving the movement of; when correcting the hip bone of the patient, firstly, a correcting screw is drilled at the position of the patient needing correcting the hip bone, and then the hip bone is corrected by pulling the correcting screw; the clamping structure is used for clamping the correcting screw and then correcting the hip bone by adjusting the position of the square plate 63; the surfaces of the left end and the right end of the driving shaft 80 are fixedly connected with parallel shaft couplers 8, the right end of each parallel shaft coupler 8 penetrates through the inner box body 1, the surface of the right end of each parallel shaft coupler 8 is fixedly connected with a rotating handle 4, and the parallel shaft couplers 8 can enable the driving shaft 8 to move up and down and left and right and can also drive the driving shaft 8 to rotate; the key-shaped groove has been seted up on 2 right-hand members surfaces of outer box, and the key-shaped groove does not influence parallel shaft coupling 8 and reciprocates when providing box 1 up removal in, and twist grip 4 is the input power mouth, makes whole device can normally work, and connecting axle 17 fixed connection is box 1 inner wall in, and the motion in every direction all is independent control, convenient regulation.

The surface of the right end of the first straight gear 11 is fixedly connected with a first driving belt wheel 12, the lower end of the first driving belt wheel 12 is connected with a first driven belt wheel 18, the right end of the first driven belt wheel 18 is coaxially and fixedly connected with a first small bevel gear 19, the left side of the lower end of the first small bevel gear 19 is meshed with a second small bevel gear 20, the center of the second small bevel gear 20 is fixedly connected with a first telescopic rod 21, the lower end of the outer surface of the first telescopic rod 21 is fixedly connected with a first bevel gear 22, the rear side of the lower end of the first bevel gear 22 is meshed with a first large bevel gear 15, the center of the first large bevel gear 15 is fixedly connected with a first threaded barrel 16, and the inner part of the first threaded barrel 16 is in; the right side of the surface of the upper end of the bottom plate 3 is provided with a long rectangular groove, and the first threaded rod 14 is fixedly connected to the inner wall of the long rectangular groove.

A square groove is formed in the middle of the right end of the inner box body 1, a large rectangular groove is formed in the lower end of the square groove, as shown in fig. 12, a sliding box is connected inside the large rectangular groove in a sliding mode, a rotating shaft is fixedly connected to the centers of the first driven belt pulley 18 and the first bevel pinion 19 and is rotatably connected to the inner wall of the square groove, the first telescopic rod 21 is composed of an outer barrel and an inner rod, the outer barrel and the inner rod are in splined connection, the first telescopic rod 21 can rotate while stretching, a bearing seat is rotatably connected to the outer surface of the first telescopic rod 21 and is fixedly connected to the inner wall of the sliding box, a through hole is formed in the lower end of the sliding box; a first belt 13 is arranged on the outer surfaces of the first driving pulley 12 and the first driven pulley 18, and the first belt 13 plays a role in transmission, so that the first driving pulley 12 and the first driven pulley 18 synchronously rotate; as shown in fig. 3; when the driving spur gear 9 is meshed with the first straight gear 11, the driving spur gear 9 is rotated by rotating the rotary handle 4, the driving spur gear 9 rotates to drive the first straight gear 11 to rotate, the first straight gear 11 rotates to drive the first driving pulley 12 to rotate, the first driving pulley 12 rotates to drive the first driven pulley 18 to rotate, the first driven pulley 18 rotates to drive the first small bevel gear 19 to rotate, the first small bevel gear 19 rotates to drive the second small bevel gear 20 to rotate by meshing, the second small bevel gear 20 rotates to drive the first telescopic rod 21 to rotate, the first telescopic rod 21 rotates to drive the first bevel gear 22 to rotate, the first bevel gear 22 rotates to drive the first threaded cylinder 16 to rotate by meshing, the first threaded cylinder 16 rotates to generate relative displacement with the first threaded rod 14, and the outer box 2 can move back and forth because the first threaded rod 14 is fixed.

The right end of the second straight gear 23 is fixedly connected with a second driving pulley 24, the rear end of the second driving pulley 24 is connected with a second driven pulley 26, the left end of the second driven pulley 26 is coaxially and fixedly connected with a second bevel gear 27, the left side of the lower end of the second bevel gear 27 is meshed with a second large bevel gear 28, a cylindrical barrel 76 is fixedly connected to the center of the second large bevel gear 28, the cylindrical barrel 76 is rotatably connected to the bottom end of the inner wall of the inner box body 1, a second threaded rod 29 is fixedly connected to the inner side of the cylindrical barrel 76, a second threaded barrel 30 is connected to the lower end of the outer surface of the second threaded rod 29 in a threaded manner, and the second threaded barrel 30 is.

As shown in fig. 13, a cylindrical through hole is formed in the inner case 1 corresponding to the second threaded rod 29, the cylindrical barrel 76 is rotatably connected to the inner wall of the cylindrical through hole, a rotating shaft is fixedly connected to the centers of the second driven pulley 26 and the second bevel gear 27, a bearing seat is rotatably connected to the outer surface of the rotating shaft, and the bearing seat is fixedly connected to the bottom end of the inner wall of the inner case 1, as shown in fig. 14, a second belt 25 is mounted on the outer surfaces of the second driving pulley 24 and the second driven pulley 26, and the second belt 25 is used for ensuring that the second driving pulley 24 and the second driven pulley 26 rotate synchronously; as shown in fig. 4; when the driving spur gear 9 is engaged with the second spur gear 23, by rotating the rotating handle 4, the rotating handle 4 rotates to drive the driving spur gear 9 to rotate, the driving spur gear 9 rotates to drive the second spur gear 23 to rotate by engagement, the second spur gear 23 rotates to drive the second driving pulley 24 to rotate, the second driving pulley 24 rotates to drive the second driven pulley 26 to rotate, the second driven pulley 26 rotates to drive the second bevel gear 27 to rotate, the second bevel gear 27 rotates to drive the second large bevel gear 28 to rotate by engagement, the second large bevel gear 28 rotates to drive the cylindrical drum 76 to rotate, the cylindrical drum 76 rotates to drive the second threaded rod 29 to rotate, the second threaded rod 29 rotates to displace relative to the second threaded drum 30, because the second threaded drum 30 is fixedly connected to the bottom end of the outer case 2, the second threaded drum 29 moves upward or downward, the inner box body 1 can be driven to move up and down while moving.

A third driving pulley 32 is fixedly connected to the right end of the third straight gear 31, a third driven pulley 34 is connected to the rear end of the third driving pulley 32, a third small bevel gear 35 is coaxially and fixedly connected to the left end of the third driven pulley 34, a fourth small bevel gear 36 is meshed to the left side of the lower end of the third small bevel gear 35, a universal joint 37 is coaxially and fixedly connected to the upper end of the fourth small bevel gear 36, a second telescopic rod 38 is fixedly connected to the upper end of the universal joint 37, a third bevel gear 39 is fixedly connected to the upper end of the outer surface of the second telescopic rod 38, a third large bevel gear 40 is meshed to the right side of the upper end of the third bevel gear 39, a third threaded cylinder 41 is fixedly connected to the center of the third large bevel gear 40, a third threaded rod 42 is connected to the inner thread of the third threaded cylinder 41, and the left end surface of the third threaded rod;

a fourth driving pulley 44 is fixedly connected to the right end of the fourth straight gear 43, a fourth driven pulley 46 is connected to the rear end of the lower end of the fourth driving pulley 44 in a belt manner, a fifth small bevel gear 47 is coaxially and fixedly connected to the left end of the fourth driven pulley 46, a sixth small bevel gear 48 is meshed to the rear side of the left end of the fifth small bevel gear 47, a worm 49 is coaxially and fixedly connected to the rear end of the sixth small bevel gear 48, a worm gear 50 is meshed to the upper end of the worm 49, a driven straight gear 51 is coaxially and fixedly connected to the left end of the worm gear 50, a gear ring 52 is meshed to the lower end of the driven straight gear 51, a planetary gear 53 is meshed to the upper end of the outer surface of the gear ring 52, a rack 54 is meshed to the upper end of the planetary gear;

the rear end of the fifth straight gear 56 is meshed with a large straight gear 74, a third telescopic rod 58 is fixedly connected to the center of the large straight gear 74, a large cylindrical through hole is formed in the lower side of the middle of the surface of the right end of the small box body 5, the outer surface of the third telescopic rod 58 is rotatably connected to the inner wall of the large cylindrical through hole, a fourth large bevel gear 59 is fixedly connected to the left end of the outer surface of the third telescopic rod 58, a fifth large bevel gear 60 is meshed with the lower end of the left side of the fourth large bevel gear 59, a fourth threaded barrel 77 is fixedly connected to the center of the fifth large bevel gear 60, and a fourth threaded rod 61 is in threaded connection with the inside of; the middle part of the upper end surface of the square plate 63 is fixedly connected with a fourth telescopic cylinder 62, the bottom end of the inner wall of the fourth telescopic cylinder 62 is fixedly connected to the lower end surface of the fourth threaded rod 61, and the upper end surface of the fourth telescopic cylinder 62 is fixedly connected to the middle part of the lower end surface of the small box 5.

As shown in fig. 5-14, a fourth belt 45 is installed on the outer surface of the fourth driving pulley 44 and the fourth driven pulley 46, and is used for realizing the synchronous rotation of the fourth driving pulley 44 and the fourth driven pulley 46, an installation groove is formed at the inner box body 1 where the rack 54 is located, the rack 54 is fixedly connected to the inner wall of the installation groove, the width of the installation groove is the same as the widths of the gear ring 52, the rack 54 and the planetary gear 53, so that the planetary gear 53 is limited to move only back and forth in the installation groove and cannot move left and right, and the gear ring 52 is rotatably connected to the inner wall of the installation groove, as shown in fig. 14; the outer surface of the third threaded rod 42 is provided with a sliding rail, a sliding block is fixedly connected at the hole of the planetary gear 53, the sliding block slides in the sliding rail, the sliding rail of the sliding block is used for limiting the autorotation of the third threaded rod 42, because the lower end of the sliding rail is provided with the worm gear 50 and the worm 49, and the worm gear 50 and the worm 49 have a self-locking function, when the worm gear 50 does not rotate, the planetary gear 53 cannot rotate, the third threaded rod 42 cannot rotate, the right end surface of the inner box body 1 is provided with a large circular arc groove, and the gear ring 52, the rack 54, the large straight gear 74 and the large circular arc groove belong to the same circle center, so that when the third threaded rod 42 does the movement around the circle center of the large straight gear 74 in the large circular arc groove, the small box body; a rotating shaft is fixedly connected to the centers of the fifth small bevel gear 47 and the fourth driven pulley 46, a bearing seat is rotatably connected to the outer surface of the rotating shaft and fixedly connected to the bottom end of the inner wall of the inner box body 1, a sixth small bevel gear 48 is fixedly connected to the front end of the worm 49, a bearing seat is rotatably connected to the outer surface of the worm 49 and fixedly connected to the bottom end of the inner wall of the inner box body 1, a rotating shaft is fixedly connected to the centers of the worm gear 50 and the driven straight gear 51, a bearing seat is rotatably connected to the outer surface of the rotating shaft and fixedly connected; when the driving straight gear 9 is meshed with the fourth straight gear 43, the rotating handle 4 is rotated to rotate the driving straight gear 9, the fourth straight gear 43 is driven to rotate by the rotation of the driving straight gear 9, the fourth straight gear 43 drives the fourth driving pulley 44 to rotate by the rotation of the fourth driving pulley 44, the fourth driven pulley 46 is driven to rotate by the rotation of the fourth driven pulley 46, the fifth small bevel gear 47 drives the sixth small bevel gear 48 to rotate by the rotation of the fifth small bevel gear 47, the sixth small bevel gear 48 drives the worm 49 to rotate by the rotation of the fourth driving pulley 44, the worm 49 drives the worm gear 50 to rotate by the rotation of the worm gear 50, the driven straight gear 51 drives the gear ring 52 to rotate by the meshing, the gear ring 52 drives the planetary gear 53 to rotate by the meshing, the planetary gear 53 rotates to move on the inner side of the gear track 54, the movement of the planetary gear 53 drives the third threaded rod 42 to move, and the movement of the third threaded rod 42 in the large arc groove drives the small box body 5 to rotate by taking the third telescopic rod 58 as the center of a circle; the hip bone reduction device provides convenience for partial patients to reduce the hip bone;

the outer surfaces of the third driving belt wheel 32 and the third driven belt wheel 34 are provided with a third belt 33, which is used for realizing the synchronous rotation of the third driving belt wheel 32 and the third driven belt wheel 34, the centers of the third driven belt wheel 34 and the third bevel pinion 35 are fixedly connected with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with a bearing seat, the bearing seat is fixedly connected with the bottom end in the inner box body 1, the lower end of a universal joint 37 is rotatably connected with the bottom end in the inner box body 1, the upper end of the universal joint 37 can rotate left and right along with the third threaded rod 42 when the third threaded rod 42 does left and right circular arc motion, and can still serve as a rotating shaft to rotate after rotating, so that the fourth bevel pinion 36 and the third bevel pinion 39 can synchronously rotate, the second telescopic rod 38 consists of an outer cylinder and an inner cylinder, the outer cylinder is connected with a spline, the second telescopic rod 38 can serve as a rotating shaft to rotate when the third threaded rod 42 does left and right circular, the distance between the second telescopic rod 38 and the universal joint 37 is changed, the second telescopic rod 38 can be extended and retracted to ensure that the universal joint 37 and the third bevel gear 39 synchronously rotate and are not separated from each other, the right end of the outer surface of the third threaded barrel 41 is rotatably connected with a right-angle bearing seat, the other end of the right-angle bearing seat is rotatably connected with the outer surface of the third telescopic rod 58, the right-angle bearing seat is used for fixing the engagement between the third bevel gear 39 and the third large bevel gear 40, the front end of the outer surface of the third threaded barrel 41 is fixedly connected with a circular ring, an arc-shaped sliding rail is arranged at a large arc groove corresponding to the circular ring, the circular ring slides on the inner wall of the arc-shaped sliding rail without influencing the rotation of the circular ring, when the driving straight gear 9 is engaged with the third straight gear 31, the driving straight gear 9 rotates to drive the third straight gear 31 to drive the third driving belt pulley 32 to rotate, the, the third driven belt wheel 34 rotates to drive the third small bevel gear 35 to rotate, the third small bevel gear 35 rotates to drive the fourth small bevel gear 36 to rotate through meshing, the fourth small bevel gear 36 rotates to drive the universal joint 37 to rotate, the universal joint 37 rotates to drive the second telescopic rod 38 to rotate, the second telescopic rod 38 rotates to drive the third bevel gear 39 to rotate, the third bevel gear 39 rotates to drive the third large bevel gear 40 to rotate through meshing, the third large bevel gear 40 rotates to drive the third threaded barrel 41 to rotate, the third threaded barrel 41 rotates to generate relative displacement with the third threaded rod 42, because the third threaded barrel 41 can only rotate on the inner wall of the large circular arc groove and can not move left and right, therefore, the third threaded barrel 41 and the third threaded rod 42 can generate relative displacement, and the third threaded rod 42 is limited by the planetary gear 53, so that the third threaded rod 42 can move left and right to drive the small box body 5 to move left and right; positioning the patient in a position where correction of the hip bone is required;

the third telescopic rod 58 is composed of an outer cylinder and an inner rod which are connected through splines and can stretch left and right and also can serve as a rotating shaft to rotate, the fourth telescopic cylinder 62 is composed of an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder belong to spline connection and can stretch up and down, because the upper end surface of the fourth telescopic cylinder 62 is fixedly connected to the lower end surface of the small box body 5, because the small box body 5 cannot rotate left and right, the fourth telescopic cylinder 62 cannot rotate, and because the outer cylinder and the inner cylinder of the fourth telescopic cylinder 62 belong to spline connection, the square plate 63 and the fourth threaded rod 61 cannot rotate left and right and can only move up and down, a through hole is formed in the middle of the lower end surface of the small box body 5, and the fourth threaded cylinder; when the driving spur gear 9 is meshed with the fifth spur gear 56, the rotation of the rotating handle 4 can drive the driving spur gear 9 to rotate by rotating the rotating handle 4, the driving spur gear 9 can drive the fifth spur gear 56 to rotate by meshing, the fifth spur gear 56 can drive the large spur gear 74 to rotate by meshing, the large spur gear 74 can drive the third telescopic rod 58 to rotate by rotating the large spur gear 74, the third telescopic rod 58 can drive the fourth large bevel gear 59 to rotate by rotating the third telescopic rod, the fifth large bevel gear 60 can be driven to rotate by rotating the fourth large bevel gear 59 to rotate by meshing, the fifth large bevel gear 60 can drive the fourth thread cylinder 77 to rotate by rotating the fifth thread rod 61, and the fourth thread cylinder can only move up and down because the fourth thread rod 61 cannot rotate, therefore, the fourth threaded cylinder 77 rotates to move relative to the fourth threaded rod 61, the fourth threaded rod 61 moves up and down, and the fourth threaded rod 61 moves up and down to drive the square plate 63 to move up and down.

The surfaces of the left end and the right end of the driving straight gear 9 are rotatably connected with a square frame 78, the surface of the upper end of the square frame 78 is fixedly connected with an adjusting handle 10, and the middle part of the outer surface of the adjusting handle 10 is fixedly connected with a clamping block 79; the upper end surface of the inner box body 1 corresponding to the adjusting handle 10 is provided with a key-shaped through hole, the upper end surface of the inner box body 1 corresponding to the upper end of the driving straight gear 9 is respectively and sequentially provided with five clamping grooves capable of being matched with the clamping blocks 79 from right to left, and the clamping grooves are respectively communicated with the key-shaped through hole; the middle part of the surface of the lower end of the square frame 78 is fixedly connected with a cylindrical pin 81, and the bottom end surface of the inner wall of the inner box body 1 corresponding to five clamping grooves is provided with a round pin hole matched with the cylindrical pin 81.

As shown in fig. 10, each of the card slot and the round pin hole corresponds to the first spur gear 11, the second spur gear 23, the third spur gear 31, the fourth spur gear 43, and the fifth spur gear 56, respectively, one to one; when the driving spur gear 9 is adjusted to be meshed with the first straight gear 11, the second straight gear 23, the third straight gear 31, the fourth straight gear 43 and the fifth straight gear 56 respectively, the clamping block 79 is placed in the corresponding clamping groove by moving the adjusting handle 10, the clamping groove and the round pin hole are collinear up and down, the parallel coupling 8 moves up and down and left and right to match the cylindrical pin 81 and the clamping block 79 to enter the round pin hole and the clamping groove, when the clamping block 79 is placed in the clamping groove, the cylindrical pin 81 can enter the corresponding round pin hole along with the clamping block, and meshing and transmission of the driving spur gear 9 are more stable.

The clamping structure comprises a supporting column 64, the upper end surface of the supporting column 64 is fixedly connected to the lower end surface of a square plate 63, the lower end surface of the supporting column 64 is fixedly connected with a mounting box 65, the front end surface and the rear end surface of the mounting box 65 are connected with supporting plates 68 in a sliding mode, the lower end of the outer surface of each supporting plate 68 is fixedly connected with a baffle plate 70 with holes, the lower end surface of each supporting plate 68 is fixedly connected with a round baffle plate 69, the outer surface of each round baffle plate 69 is hinged with four evenly-distributed grippers 67, the inner sides of the grippers 67 are hinged with connecting rods 66;

the inside upper end fixedly connected with upper chute section of thick bamboo 72 of mounting box 65, the inside lower extreme fixedly connected with lower chute section of thick bamboo 73 of mounting box 65, upper chute section of thick bamboo 72 and lower chute section of thick bamboo 73 inner wall sliding connection have cylinder dog 71.

As shown in fig. 15-19, the lower end surface of the cylindrical stopper 71 is fixedly connected with a trapezoidal stopper, the upper chute barrel 72 and the lower chute barrel 73 are respectively provided with four sections of chutes, the chutes of the upper chute barrel 72 and the chutes of the lower chute barrel 73 are not in one-to-one correspondence, and have a deviation angle difference of 45 degrees, the upper end of the outer surface of the cylindrical stopper 71 is fixedly connected with a circular stopper nail, the circular stopper nail is slidably connected in the chute, when the supporting column 64 moves downward, the circular stopper 69 reaches the upper end surface of the reset nail and does not descend, the supporting column 64 continues to move downward by rotating the handle 4, at this time, the cylindrical stopper 71 contacts the upper end surface of the circular stopper 69 and continues to descend, the upper chute barrel 72 and the circular stopper nail generate relative displacement, because the upper chute barrel 72 is fixedly connected to the inner wall of the mounting box 65, the circular stopper nail rotates 90 degrees under the chute, and the circular stopper nail rotates 90 degrees by the trapezoidal stopper, when the support column 64 moves upwards after rotating by 90 degrees, the trapezoid stopper can be separated from the perforated baffle plate 70 to move upwards, the connecting rod 66 also moves upwards, the connecting rod 66 moves upwards to drive one end of the hand grip 67 to move upwards, the hand grip is in a clamping state, and when the trapezoid stopper is arranged at the lower end of the perforated baffle plate 70, the hand grip 67 is in an opening state; when the trapezoidal block is arranged at the lower end of the perforated baffle plate 70, the square plate 63 moves downwards, the square plate 63 drives the supporting columns 64 to move downwards, the supporting plate 68 and the circular baffle plate 69 also move downwards due to gravity, when the circular baffle plate 69 contacts the reset nail, the square plate 63 moves downwards for a short distance, under the action of the sliding groove and the circular baffle nail, the trapezoidal block can rotate for 90 degrees, at the moment, the trapezoidal block can move upwards through the reverse rotation handle 4, the trapezoidal block can be separated from the perforated baffle plate 70, the mounting box 65 can move to the upper end of the supporting plate 68, the hand grip 67 is in a grasping state, can grasp the cap of the reset nail to lift, can pull the position of the hip bone to be reset, when the reset is finished, the trapezoidal block is contacted with the circular baffle plate 69 through the downward movement of the supporting columns 64, and then moves downwards for a short distance to ensure that the trapezoidal block rotates for 90 degrees again, so that the trapezoidal block 79 is clamped into the perforated baffle, at the moment, the gripper 67 is opened and does not clamp the reset nail any more, when the reset nail needs to be pressed downwards for correction, the circular baffle 69 is pressed downwards by only descending the circular baffle 69, the lower ends of the gripper 67 are fixedly connected with key-shaped stoppers, and even if the gripper 67 is also arranged at the lower end of the circular baffle 69 in the opening process and around a screw cap at the upper end of the reset nail, the circular baffle 69 and the reset nail are prevented from sliding to avoid separation; simple operation and convenient use.

When the small box body clamping device is used, the position of the small box body 5 is respectively controlled by controlling the adjusting handle 10, the front and back movement of the small box body 5 is adjusted by controlling the driving straight gear 9 to be meshed with the first straight gear 11 through the adjusting handle 10, the up and down movement of the small box body 5 is adjusted by controlling the driving straight gear 9 to be meshed with the second straight gear 23 through the adjusting handle 10, the left and right movement of the small box body 5 is adjusted by controlling the driving straight gear 9 to be meshed with the third straight gear 31 through the adjusting handle 10, the front and back small amplitude overturning of the small box body 5 is adjusted by controlling the driving straight gear 9 to be meshed with the fourth straight gear 43 through the adjusting handle 10, the clamping device is adjusted to move up and down by controlling the driving straight gear 9 to be meshed with the fifth straight gear 56 through the adjusting handle 10, the resetting nail is clamped.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A reduction device for hip fracture surgery, comprising a base plate (3), characterized in that: the upper end of the bottom plate (3) is provided with an outer box body (2) capable of moving back and forth, an inner box body (1) capable of moving up and down is arranged in the outer box body (2), the left end of the inner box body (1) is provided with a small box body (5) capable of moving left and right and turning back and forth in a small range, the lower end of the small box body (5) is provided with a square plate (63) capable of moving up and down, and the lower end of the square plate (63) is provided with a clamping structure;

a driving shaft (80) which can move up and down, left and right and can rotate is installed on the inner wall of the inner box body (1), a driving straight gear (9) is connected to the outer surface of the driving shaft (80) in a sliding mode, a connecting shaft (17) is installed at the rear end of the driving straight gear (9), and a first straight gear (11), a second straight gear (23), a third straight gear (23), a fourth straight gear (43) and a fifth straight gear (56) are respectively connected to the outer surface of the connecting shaft (17) in a rotating mode from right to left in sequence; when the driving straight gear (9) is meshed with the first straight gear (11), a structure which enables the outer box body (2) to move back and forth can be formed, when the driving straight gear (9) is meshed with the second straight gear (23), a structure which enables the inner box body (1) to move up and down can be formed, when the driving straight gear (9) is meshed with the third straight gear (31), a structure which enables the small box body (5) to move left and right can be formed, when the driving straight gear (9) is meshed with the fourth straight gear (43), a structure which enables the small box body (5) to turn back and forth in a small amplitude can be formed, and when the driving straight gear (9) is meshed with the fifth straight gear (56), a structure which enables the square plate (63) to move up and down can be formed.

2. The hip fracture surgical reduction device of claim 1, wherein: the surface of the right end of the first straight gear (11) is fixedly connected with a first driving belt wheel (12), the lower end of the first driving belt wheel (12) is connected with a first driven belt wheel (18), the right end of the first driven belt wheel (18) is coaxially and fixedly connected with a first small bevel gear (19), the left side of the lower end of the first small bevel gear (19) is meshed with a second small bevel gear (20), the center of the second small bevel gear (20) is fixedly connected with a first telescopic rod (21), the lower end of the outer surface of the first telescopic rod (21) is fixedly connected with a first bevel gear (22), the rear side of the lower end of the first bevel gear (22) is meshed with a first large bevel gear (15), the center of the first large bevel gear (15) is fixedly connected with a first threaded barrel (16), and the inner part of the first threaded barrel (16) is in threaded; the right side of the surface of the upper end of the bottom plate (3) is provided with a long rectangular groove, and the first threaded rod (14) is fixedly connected to the inner wall of the long rectangular groove.

3. The hip fracture surgical reduction device of claim 1, wherein: second straight-toothed gear (23) right-hand member fixedly connected with second driving pulley (24), second driving pulley (24) rear end area is connected with second driven pulley (26), the coaxial rigid coupling in second driven pulley (26) left end has second bevel gear (27), the meshing has big bevel gear (28) of second in second bevel gear (27) lower extreme left side, big bevel gear of second (28) center department fixedly connected with cylinder (76), cylinder (76) rotate to be connected in inner wall bottom of interior box (1), inboard fixedly connected with second threaded rod (29) of cylinder (76), end threaded connection has second threaded cylinder (30) under second threaded rod (29) surface, second threaded cylinder (30) fixed connection is in outer box (2) inner wall bottom.

4. The hip fracture surgical reduction device of claim 1, wherein: the right end of the third straight gear (31) is fixedly connected with a third driving belt wheel (32), the rear end of the third driving belt wheel (32) is connected with a third driven belt wheel (34), the left end of the third driven belt wheel (34) is coaxially and fixedly connected with a third small bevel gear (35), the left side of the lower end of the third small bevel gear (35) is meshed with a fourth small bevel gear (36), the upper end of the fourth small bevel gear (36) is coaxially and fixedly connected with a universal joint (37), the upper end of the universal joint (37) is fixedly connected with a second telescopic rod (38), the upper end of the outer surface of the second telescopic rod (38) is fixedly connected with a third bevel gear (39), the right side of the upper end of the third bevel gear (39) is meshed with a third large bevel gear (40), the center of the third large bevel gear (40) is fixedly connected with a third threaded barrel (41), the inner thread of the third threaded barrel (41) is connected with a third threaded rod (42), and the surface of the left end;

the right end of the fourth straight gear (43) is fixedly connected with a fourth driving pulley (44), the rear side end of the lower end of the fourth driving pulley (44) is connected with a fourth driven pulley (46) in a belt manner, the left end of the fourth driven pulley (46) is coaxially and fixedly connected with a fifth small bevel gear (47), the rear side of the left end of the fifth small bevel gear (47) is meshed with a sixth small bevel gear (48), the rear end of the sixth small bevel gear (48) is coaxially and fixedly connected with a worm (49), the upper end of the worm (49) is meshed with a worm gear (50), the left end of the worm gear (50) is coaxially and fixedly connected with a driven straight gear (51), the lower end of the driven straight gear (51) is meshed with a gear ring (52), the upper end of the outer surface of the gear ring (52) is meshed with a planetary gear (53), the upper end of the planetary gear (53) is meshed with a gear rack (54;

the rear end of the fifth straight gear (56) is meshed with a large straight gear (74), a third telescopic rod (58) is fixedly connected to the center of the large straight gear (74), a large cylindrical through hole is formed in the lower side of the middle of the surface of the right end of the small box body (5), the outer surface of the third telescopic rod (58) is rotatably connected to the inner wall of the large cylindrical through hole, a fourth large bevel gear (59) is fixedly connected to the left end of the outer surface of the third telescopic rod (58), a fifth large bevel gear (60) is meshed with the lower end of the left side of the fourth large bevel gear (59), a fourth threaded cylinder (77) is fixedly connected to the center of the fifth large bevel gear (60), and a fourth threaded rod (61) is in threaded connection with the inside of the fourth; the square plate (63) upper end surface middle part fixedly connected with fourth telescopic cylinder (62), fourth telescopic cylinder (62) inner wall bottom fixed connection is at fourth threaded rod (61) lower extreme surface, and fourth telescopic cylinder (62) upper end surface fixed connection is in little box (5) lower extreme surface middle part.

5. The hip fracture surgical reduction device of claim 1, wherein: the surfaces of the left end and the right end of the driving straight gear (9) are rotatably connected with a square frame (78), the surface of the upper end of the square frame (78) is fixedly connected with an adjusting handle (10), and the middle part of the outer surface of the adjusting handle (10) is fixedly connected with a clamping block (79); the upper end surface of the inner box body (1) corresponding to the adjusting handle (10) is provided with a key-shaped through hole, the upper end surface of the inner box body (1) corresponding to the upper end of the driving straight gear (9) is respectively and sequentially provided with five clamping grooves which can be matched with the clamping blocks (79) from right to left, and the clamping grooves are respectively communicated with the key-shaped through hole; the middle of the surface of the lower end of the square frame (78) is fixedly connected with a cylindrical pin (81), and the bottom end surface of the inner wall of the inner box body (1) corresponding to five clamping grooves is provided with a round pin hole matched with the cylindrical pin (81).

6. The hip fracture surgical reduction device of claim 1, wherein: the clamping structure comprises supporting columns (64), the upper end surfaces of the supporting columns (64) are fixedly connected to the lower end surfaces of square plates (63), the lower end surfaces of the supporting columns (64) are fixedly connected with mounting boxes (65), the front end surfaces and the rear end surfaces of the mounting boxes (65) are connected with supporting plates (68) in a sliding mode, the lower ends of the outer surfaces of the supporting plates (68) are fixedly connected with perforated baffles (70), the lower end surfaces of the supporting plates (68) are fixedly connected with round baffles (69), the outer surfaces of the round baffles (69) are hinged with four evenly-distributed hand grips (67), the inner sides of the hand grips (67) are hinged with connecting rods (66), and the inner sides of the connecting rods;

the mounting box is characterized in that an upper chute barrel (72) is fixedly connected to the inner upper end of the mounting box (65), a lower chute barrel (73) is fixedly connected to the inner lower end of the mounting box (65), and a cylindrical stop block (71) is slidably connected to the inner walls of the upper chute barrel (72) and the lower chute barrel (73).