阅读说明：本技术 骨折牵引复位装置 (Fracture traction reduction device ) 是由 陈聚伍 于 2019-12-06 设计创作，主要内容包括：本发明公开了一种骨折牵引复位装置,包括主动调节机构和被动调节机构,两调节机构的调节端分别固定安装克氏针一和克氏针二,克氏针一和克氏针二分别固定在骨折部位的远端和近端,通过主动调节机构和/或被动调节机构分别对克氏针一和克氏针二调节使骨折部位远端和近端匹配对接,移动和角度调节使骨折远端和近端的骨缝位置对应,进而实现推进复位对接和固定。本发明调节方式简单易学,精准度非常高,降低手术操作难度和对接不准确性,简单培训后适合各层次医生操作使用,也为骨折定位规范化操作提供依据。(The invention discloses a fracture traction reduction device, which comprises an active adjusting mechanism and a passive adjusting mechanism, wherein adjusting ends of the two adjusting mechanisms are respectively and fixedly provided with a first Kirschner wire and a second Kirschner wire, the first Kirschner wire and the second Kirschner wire are respectively fixed at the far end and the near end of a fracture part, the far end and the near end of the fracture part are matched and butted by respectively adjusting the first Kirschner wire and the second Kirschner wire through the active adjusting mechanism and/or the passive adjusting mechanism, and the positions of bone seams at the far end and the near end of the fracture are corresponding through movement and angle adjustment, so that the push-in reduction butting and fixation are realized. The method has the advantages of simple and easy learning of the adjusting mode, very high precision, reduction of the difficulty of operation and the inaccuracy of butt joint, suitability for operation of doctors in each level after simple training, and provision of a basis for standardized operation of fracture positioning.)

1. A fracture traction reduction device is characterized by comprising an active adjusting mechanism and a passive adjusting mechanism, wherein adjusting ends of the two adjusting mechanisms are respectively and fixedly provided with a first Kirschner wire and a second Kirschner wire, the first Kirschner wire and the second Kirschner wire are respectively fixed at the far end and the near end of a fracture part, the far end and the near end of the fracture part are matched and butted by respectively adjusting the first Kirschner wire and the second Kirschner wire through the active adjusting mechanism and/or the passive adjusting mechanism, the active adjusting mechanism is a traction assembly A, the traction assembly A comprises a first three-dimensional adjusting mechanism, the bottom of the first three-dimensional adjusting mechanism is fixed, and a control tail end of the first three-dimensional adjusting mechanism is fixed with the first Kirschner wire; the passive adjusting mechanism is a traction assembly A, a traction assembly B, a traction assembly C or a traction assembly D, the traction assembly B comprises an upright rod, the upper end of the upright rod is transversely connected with a flat rod, the tail end of the flat rod is provided with an angle adjusting mechanism, and an adjusting part of the tail end angle adjusting mechanism fixes the Kirschner wire II; the traction assembly C comprises an upright rod, the upper end of the upright rod is transversely connected with a flat rod, the tail end of the flat rod is provided with a section of anti-rotation inserted rod, and the traction assembly C is also provided with a strip-shaped Kirschner wire seat, the strip-shaped Kirschner wire seat comprises a transverse insertion hole which can be inserted on the anti-rotation inserted rod in a matching manner, and the strip-shaped Kirschner wire seat is respectively provided with a series of vertical needle holes for sleeving a solid-phase corresponding Kirschner; the traction assembly D comprises a second three-dimensional adjusting mechanism, the bottom of the second three-dimensional adjusting mechanism is fixed, the control end of the second three-dimensional adjusting mechanism is fixed with a vertical rod, the upper end of the vertical rod is transversely connected with a flat rod, the tail end of the flat rod is provided with a section of anti-rotation inserted rod, a strip Kirschner wire base is further arranged, the strip Kirschner wire base comprises a transverse jack and can be inserted into the anti-rotation inserted rod in a matching mode, and the strip Kirschner wire base is respectively provided with a series of vertical pinholes for sleeving a second solid phase corresponding Kirschner wire.

2. A fracture traction reduction device is characterized by comprising an active adjusting mechanism and a passive adjusting mechanism, wherein adjusting ends of the two adjusting mechanisms are respectively and fixedly provided with a first Kirschner wire and a second Kirschner wire which are respectively fixed at the far end and the near end of a fracture part, the far end and the near end of the fracture part are respectively adjusted by the active adjusting mechanism and/or the passive adjusting mechanism to enable the far end and the near end of the fracture part to be in matched butt joint, the active adjusting mechanism is a traction assembly D which comprises a second three-dimensional adjusting mechanism, the bottom of the second three-dimensional adjusting mechanism is fixed, a control tail end of the second three-dimensional adjusting mechanism is fixedly provided with a vertical rod, the upper end of the vertical rod is transversely connected with a flat rod, the tail end of the flat rod is provided with a section of anti-rotation inserting rod, and a strip-shaped Kirschner wire seat is also provided with a transverse inserting hole which can be matched and inserted on the anti-rotation inserting, a series of vertical pinholes are respectively arranged on the strip-shaped Kirschner wire base and used for sleeving a solid-phase corresponding Kirschner wire I; passive adjustment mechanism is for drawing subassembly C, should draw subassembly C and include the pole setting, and pole setting upper end transverse connection has the flat bar, and the flat bar end has one section to prevent changeing the inserted bar, still is provided with banding ke shi needle holder, and this banding ke shi needle holder contains horizontal jack and can matches the cartridge on preventing changeing the inserted bar, has a series of vertical pinholes to be used for the cover solid phase to correspond ke shi needle two on this banding ke shi needle holder respectively.

3. The fracture traction reduction device according to claim 1 or 2, wherein the tail end of the traction component A is provided with a tail end angle adjusting mechanism; the angle adjusting mechanism is characterized in that a rotary Kirschner wire seat is arranged at the tail end of a corresponding rod piece, the rotary Kirschner wire seat comprises a rotary body, a rotary cover and a sliding rotary rod, the rotary body and the rotary cover are mutually fastened and fixed, a abdicating clamping hole is vertically formed between the rotary body and the rotary cover along the axial direction, the sliding rotary rod is installed in a matched manner, a rotary locking wire or a hoop for locking the sliding rotary rod is arranged on the rotary cover, vertical assembling holes are respectively formed in two ends of the sliding rotary rod, Kirschner wires are installed in a matched manner, and the Kirschner wires are locked through the Kirschner wire locking or the; or, angle adjustment mechanism be provided with at corresponding member end and can rotate rotatory kirschner wire seat, the rotatory kirschner wire seat of slidable includes the suit at corresponding member end and can the pivoted rotator, rotatory lid and slip rotary rod, the mutual lock of rotator and rotatory lid is fixed, there is the card hole of stepping down and match and install the slip rotary rod along the axial direction perpendicular between rotator and rotatory lid, be provided with at rotatory lid to the rotation lock wire or the clamp of slip rotary rod locking, the both ends of slip rotary rod are provided with vertical pilot hole respectively and match and install the kirschner wire, lock the kirschner wire through kirschner wire lock wire clamp or clamp.

4. The traction reduction device for bone fracture according to claim 1 or 2, wherein the three-dimensional rods of the three-dimensional adjusting mechanism are connected through a two-dimensional control mechanism, the two-dimensional control mechanism comprises a central shaft, a nut frame, a nut, a machine frame, a two-way tightening frame and a guide key, the machine frame comprises a cylindrical central shaft hole for sleeving the central shaft, the front end part of the machine frame is used for connecting the nut frame, and the rear end part of the machine frame is used for connecting the two-way tightening frame; the middle shaft is a cylindrical rod body, one end of the middle shaft is provided with a threaded section positioned in the nut frame, and the other end of the middle shaft is provided with an axial flat sliding groove or a key groove positioned in the bidirectional tightening frame; the screw rack comprises a connecting shaft cavity and a screw cavity, the connecting shaft cavity is fixedly sleeved at one end of the mechanism rack, a screw is sleeved in the screw cavity, a part of the screw is exposed out of the screw cavity and is convenient to rotate by hand, and the screw is sleeved in a threaded section of the middle shaft; two-way tight frame of stopping includes the base and fixes the tight clamp of circumference of stopping and the tight clamp of axial of base both sides, and the tight clamp matching of circumference of stopping cup joints tip behind the framework, the axis is cup jointed in the tight clamp matching of axial braking, the base set up the matching suit in the guide key of the flat spout of axial or keyway, the tight clamp of circumference of stopping is provided with respectively with the tight clamp of axial braking and can be locked dead locking mechanism, when the tight clamp locking of circumference of stopping and the tight clamp of axial braking unclamps, the axis only can follow the central shaft hole endwise slip of framework and can not rotate, when the tight clamp locking of axial braking and the tight clamp of circumference of stopping unclamp, the center pin can only follow the axle center and rotate and can not endwise slip, when two tight clamps of stopping all lock, then the center pin is fixed as an organic whole with the framework.

5. The traction reduction device for bone fracture according to claim 4, wherein the circumferential tightening clamp and the axial tightening clamp are both circular and have openings, the openings include two locking ends having a fit gap, the two locking ends have corresponding locking holes, and the locking threads of the clamps are installed in the adjacent locking holes in a penetrating manner.

6. The traction reduction device for bone fracture according to claim 5, wherein the bidirectional braking bracket further comprises a central support plate connected to the base, the circumferential braking clamp and the axial braking clamp are respectively disposed on two sides of the central support plate, and a central shaft hole is disposed in a central position of the central support plate for sleeving the central shaft.

7. The traction reduction device for bone fracture as claimed in claim 6, wherein a key hole is provided on one or both side walls of the central shaft hole, and a guide key is fixedly installed in the key hole and is simultaneously sleeved in the axial flat sliding groove or the key groove.

8. The traction reduction device for bone fracture according to claim 1 or 2, wherein the second three-dimensional adjusting mechanism comprises a first-level member vertical rod, a second-level member horizontal screw rod, a third-level member longitudinal screw rod and a fourth-level member lifting rod, wherein the vertical rod is fixed on the bedstead or the support by a fixing member, the upper end of the vertical rod is connected with the horizontal screw rod through a longitudinal tee seat, the tail end of the horizontal screw rod is connected with the longitudinal screw rod through a transverse tee seat, and the upper end of the vertical screw rod is connected with the lifting rod through a lifting tee seat; the angle adjusting mechanism is positioned at the tail end of the transverse shaft; each tee joint seat comprises a seat body, an axial through hole is formed in the middle of the seat body and used for being sleeved with a lower-level rod piece and being locked, and a radial connecting seat is fixed on the side wall of the seat body and used for being connected with a higher-level rod piece and being locked.

9. The traction reduction device for bone fracture according to claim 8, wherein the inner end of the base body is sleeved with a screwing control cap and can rotate, the screwing control cap is fixed with the inner end of the base body through an axial sliding locking wire or a hoop to prevent axial sliding, the screwing control cap fixes the lower level rod through a rotating locking wire or the hoop to prevent the lower level rod from rotating, or the sidewall of the screwing control cap is provided with an inner end radial insertion hole in a penetrating manner, a rotating control plate is inserted in the inner end radial insertion hole in a penetrating manner, the lower level rod is provided with an axial clamping groove which is radially recessed or penetrates, and the rotating control plate is positioned in the axial clamping groove at the same time.

10. The traction reduction device for bone fracture according to claim 9, wherein the outer end of the base body is fixedly connected with a propulsion device, the propulsion device comprises a nut constraining sleeve connected to the outer side of the base body, a screw outlet is arranged at the center of the outer end wall of the nut constraining sleeve, an external thread is arranged at the end part of the lower level rod piece located in the axial through hole of the base body to form a threaded section, the threaded section can be led out from the screw outlet, an adjusting nut is sleeved on the threaded section, and a side hole is arranged on the side surface of the nut constraining sleeve to expose the adjusting nut so as to facilitate the rotation operation of the adjusting nut.

Technical Field

The invention belongs to the technical field of fracture positioning and fixing instruments, and particularly relates to a fracture part reduction device capable of accurately performing multi-step composite adjustment and fixation.

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.

Disclosure of Invention

Aiming at the problems that the multi-angle adjustment flexibility of the existing fracture positioning and fixing device is poor or the adjustment and movement of any angle and position cannot be realized, the invention provides the resetting device which can be suitable for carrying out multi-step composite adjustment on any fracture situation, so that the fracture part can be butted quickly and accurately, the fracture part has higher constraint performance, and the subsequent operation on the fracture part can be carried out smoothly.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fracture traction reduction device comprises an active adjusting mechanism and a passive adjusting mechanism, wherein adjusting ends of the two adjusting mechanisms are fixedly provided with a first Kirschner wire and a second Kirschner wire respectively, the first Kirschner wire and the second Kirschner wire are fixed at the far end and the near end of a fracture part respectively, and the far end and the near end of the fracture part are matched and butted by adjusting the first Kirschner wire and the second Kirschner wire respectively through the active adjusting mechanism and/or the passive adjusting mechanism. The active adjusting mechanism is a traction assembly A, the traction assembly A comprises a first three-dimensional adjusting mechanism, the bottom of the first three-dimensional adjusting mechanism is fixed, and the control tail end of the first three-dimensional adjusting mechanism is fixed with the first Kirschner wire; the passive adjusting mechanism is a traction assembly A, a traction assembly B, a traction assembly C or a traction assembly D. The traction assembly B comprises a vertical rod, the upper end of the vertical rod is transversely connected with a flat rod, an angle adjusting mechanism is arranged at the tail end of the flat rod, and an adjusting part of the tail end angle adjusting mechanism is fixed with the Kirschner wire II. The traction assembly C comprises a vertical rod, a flat rod is transversely connected to the upper end of the vertical rod, an anti-rotation inserted rod is arranged at the tail end of the flat rod, a strip-shaped Kirschner wire seat is further arranged, the strip-shaped Kirschner wire seat comprises a transverse jack and can be inserted into the anti-rotation inserted rod in a matching mode, and a series of vertical pinholes are arranged on the strip-shaped Kirschner wire seat and used for sleeving a solid phase corresponding Kirschner wire II. The traction assembly D comprises a second three-dimensional adjusting mechanism, the bottom of the second three-dimensional adjusting mechanism is fixed, the control end of the second three-dimensional adjusting mechanism is fixed with a vertical rod, the upper end of the vertical rod is transversely connected with a flat rod, the tail end of the flat rod is provided with a section of anti-rotation inserted rod, a strip Kirschner wire base is further arranged, the strip Kirschner wire base comprises a transverse jack and can be inserted into the anti-rotation inserted rod in a matching mode, and the strip Kirschner wire base is respectively provided with a series of vertical pinholes for sleeving a second solid phase corresponding Kirschner wire.

In addition, a tail end angle adjusting mechanism can be arranged at the tail end of the traction assembly A.

Angle adjustment mechanism be provided with rotatory kirschner wire seat at corresponding member end, rotatory kirschner wire seat is including fixing at the terminal rotator of corresponding member, rotatory lid and slip rotary rod, the mutual lock of rotator and rotatory lid is fixed, have along the axial direction perpendicular to let a card hole and match and install the slip rotary rod between rotator and rotatory lid, be provided with the rotation lock wire or the clamp to slip rotary rod locking at rotatory lid, the both ends of slip rotary rod are provided with vertical pilot hole respectively and match and install the kirschner wire, lock the kirschner wire through kirschner wire or clamp to the kirschner wire.

Or, angle adjustment mechanism be provided with at corresponding member end and can rotate rotatory kirschner wire seat, the rotatory kirschner wire seat of slidable includes the suit at corresponding member end and can the pivoted rotator, rotatory lid and slip rotary rod, the mutual lock of rotator and rotatory lid is fixed, there is the card hole of stepping down and match and install the slip rotary rod along the axial direction perpendicular between rotator and rotatory lid, be provided with at rotatory lid to the rotation lock wire or the clamp of slip rotary rod locking, the both ends of slip rotary rod are provided with vertical pilot hole respectively and match and install the kirschner wire, lock the kirschner wire through kirschner wire lock wire clamp or clamp.

The axes of the sliding rotary rods are perpendicular to the axes of the respective rods, but do not intersect.

The first three-dimensional adjusting mechanism comprises a first-level rod piece vertical rod, a second-level rod piece longitudinal shaft, a third-level rod piece vertical shaft and a fourth-level rod piece transverse shaft, wherein the vertical rod piece is fixed on the bedstead or the support by a fixing piece, the upper end of the vertical rod piece is connected with the longitudinal shaft through a transverse three-way seat, the tail end of the longitudinal shaft is connected with the vertical shaft through a lifting three-way seat, and the upper end of the vertical shaft is connected with the; the angle adjusting mechanism is positioned at the tail end of the transverse shaft; each tee joint seat comprises a seat body, an axial through hole is formed in the middle of the seat body and used for being sleeved with a lower-level rod piece and being locked, and a radial connecting seat is fixed on the side wall of the seat body and used for being connected with a higher-level rod piece and being locked.

The three-dimensional adjusting mechanism II comprises a first-level rod piece vertical rod, a second-level rod piece transverse screw rod, a third-level rod piece longitudinal screw rod and a fourth-level rod piece lifting rod, wherein the vertical rod piece is fixed on the bedstead or the support by a fixing piece, the upper end of the vertical rod piece is connected with the transverse screw rod through a longitudinal tee joint, the tail end of the transverse screw rod is connected with the longitudinal screw rod through a transverse tee joint, and the upper end of the longitudinal screw rod is connected with the lifting rod through a lifting; the angle adjusting mechanism is positioned at the tail end of the transverse shaft; each tee joint seat comprises a seat body, an axial through hole is formed in the middle of the seat body and used for being sleeved with a lower-level rod piece and being locked, and a radial connecting seat is fixed on the side wall of the seat body and used for being connected with a higher-level rod piece and being locked.

It just can rotate to advance to revolve the control cap inner cover of pedestal, advances to revolve the control cap and pass through axial slip lock wire or clamp and pedestal inner fixed be used for preventing axial slip together, advances to revolve the control cap and pass through rotatory lock wire or the fixed subordinate's member of clamp and be used for preventing subordinate's member and rotate, perhaps, advances to revolve the control cap lateral wall and run through and be provided with inner radial jack, it has the rotation control board to run through the cartridge in the inner radial jack, subordinate's member is provided with along the axial draw-in groove that radially caves in or runs through simultaneously, the rotation control board is located the axial draw-in groove simultaneously.

Further, the outer end fixedly connected with advancing device of pedestal, this advancing device are including connecting the nut restraint cover in the pedestal outside, and outer end wall center be provided with the screw rod export, and the terminal portion that subordinate's member is located the pedestal axial through-hole is provided with the external screw thread and forms the screw thread section, and the screw thread section can be followed the screw rod export is drawn forth, is equipped with adjusting nut at screw thread section cover, nut restraint cover side is provided with can the side opening can make adjusting nut expose so that to adjust nut rotary operation.

A fracture traction reduction device is characterized by comprising an active adjusting mechanism and a passive adjusting mechanism, wherein adjusting ends of the two adjusting mechanisms are respectively and fixedly provided with a first Kirschner wire and a second Kirschner wire which are respectively fixed at the far end and the near end of a fracture part, the far end and the near end of the fracture part are respectively adjusted by the active adjusting mechanism and/or the passive adjusting mechanism to enable the far end and the near end of the fracture part to be in matched butt joint, the active adjusting mechanism is a traction assembly D which comprises a second three-dimensional adjusting mechanism, the bottom of the second three-dimensional adjusting mechanism is fixed, a control tail end of the second three-dimensional adjusting mechanism is fixedly provided with a vertical rod, the upper end of the vertical rod is transversely connected with a flat rod, the tail end of the flat rod is provided with a section of anti-rotation inserting rod, and a strip-shaped Kirschner wire seat is also provided with a transverse inserting hole which can be matched and inserted on the anti-rotation inserting, a series of vertical pinholes are respectively arranged on the strip-shaped Kirschner wire base and used for sleeving a solid-phase corresponding Kirschner wire I; passive adjustment mechanism is for drawing subassembly C, should draw subassembly C and include the pole setting, and pole setting upper end transverse connection has the flat bar, and the flat bar end has one section to prevent changeing the inserted bar, still is provided with banding ke shi needle holder, and this banding ke shi needle holder contains horizontal jack and can matches the cartridge on preventing changeing the inserted bar, has a series of vertical pinholes to be used for the cover solid phase to correspond ke shi needle two on this banding ke shi needle holder respectively.

The three-dimensional rods of the three-dimensional adjusting mechanism are connected through a two-dimensional control mechanism, the two-dimensional control mechanism comprises a middle shaft, a nut frame, a nut, a mechanism frame, a two-way tightening frame and a guide key, the mechanism frame comprises a cylindrical central shaft hole for sleeving the middle shaft, the front end part of the mechanism frame is used for connecting the nut frame, and the rear end part of the mechanism frame is used for connecting the two-way tightening frame; the middle shaft is a cylindrical rod body, one end of the middle shaft is provided with a threaded section positioned in the nut frame, and the other end of the middle shaft is provided with an axial flat sliding groove or a key groove positioned in the bidirectional tightening frame; the screw rack comprises a connecting shaft cavity and a screw cavity, the connecting shaft cavity is fixedly sleeved at one end of the mechanism rack, a screw is sleeved in the screw cavity, a part of the screw is exposed out of the screw cavity and is convenient to rotate by hand, and the screw is sleeved in a threaded section of the middle shaft; two-way tight frame of stopping includes the base and fixes the tight clamp of circumference of stopping and the tight clamp of axial of base both sides, and the tight clamp matching of circumference of stopping cup joints tip behind the framework, the axis is cup jointed in the tight clamp matching of axial braking, the base set up the matching suit in the guide key of the flat spout of axial or keyway, the tight clamp of circumference of stopping is provided with respectively with the tight clamp of axial braking and can be locked dead locking mechanism, when the tight clamp locking of circumference of stopping and the tight clamp of axial braking unclamps, the axis only can follow the central shaft hole endwise slip of framework and can not rotate, when the tight clamp locking of axial braking and the tight clamp of circumference of stopping unclamp, the center pin can only follow the axle center and rotate and can not endwise slip, when two tight clamps of stopping all lock, then the center pin is fixed as an organic whole with the framework.

The tight clamp of circumference and the tight clamp of axial brake all are the ring form and have the opening, and the opening part includes two locking ends that have fit clearance, has corresponding locking hole on two locking ends respectively, runs through installation clamp lock wire in the adjacent locking hole. The bidirectional brake tightening frame further comprises a center support plate which is connected with the base, the circumferential brake tightening clamp and the axial brake tightening clamp are respectively located on two sides of the center support plate, and a center shaft hole is formed in the center of the center support plate and used for sleeving the center shaft.

The invention has the beneficial effects that: according to the invention, the first Kirschner wire and the second Kirschner wire are respectively and fixedly installed at the adjusting ends of the two adjusting mechanisms, then the first Kirschner wire and the second Kirschner wire are respectively fixed at the far end and the near end of the fracture part, and the positions of bone seams at the far end and the near end of the fracture are corresponding by moving (transversely moving, longitudinally moving and lifting moving) and adjusting the angle of the two adjusting mechanisms or one adjusting mechanism, so that the pushing, resetting, butting and fixing are realized. The adjusting mode can realize the functions of stretching, rotating (turning), up-down and left-right translation alignment and resetting butt joint of the fracture position, and the stability degree of the butt joint of the bone seams supported by each steel piece is high, thereby being convenient for the subsequent operation. The method has the advantages of simple and easy learning of the adjusting mode, very high precision, reduction of the difficulty of operation and the inaccuracy of butt joint, suitability for operation of doctors in each level after simple training, and provision of a basis for standardized operation of fracture positioning.

The device can be operated under the perspective condition, and provides powerful support for the non-invasive surgery. In the two adjusting mechanisms, two independent adjusting mechanisms can be adopted, one of the adjusting mechanisms can be simplified to be only a fixing mechanism, and the other adjusting mechanism is a multi-dimensional adjusting mechanism, so that X rays can be reasonably avoided in the perspective direction, and the best realization effect is achieved.

Drawings

Fig. 1 is a schematic diagram of the application state of the present invention.

FIG. 2 is a comparative illustration of the present invention employing traction assemblies.

Fig. 3 is a schematic view of the construction of the traction assembly a of the present invention.

Fig. 4 is a schematic structural view of the pulling assembly B of the present invention.

Fig. 5 is a schematic view of the construction of the pulling assembly C of the present invention.

Fig. 6 is a schematic structural view of the pulling assembly D of the present invention.

Fig. 7 is one of the enlarged structural diagrams of the part E in fig. 3.

Fig. 8 is a schematic end view of the structure of fig. 7.

Fig. 9 is a side view of the structure of fig. 7.

Fig. 10 is a schematic view of the cross-sectional structure a-a in fig. 8.

Fig. 11 is a schematic view of a cross-sectional structure B-B in fig. 9.

Fig. 12 is a schematic sectional view of the rotator in fig. 7.

Fig. 13 is a half sectional view schematically showing the structure of the sliding rotation lever of fig. 7.

Fig. 14 is an enlarged view of the portion F of fig. 6.

Fig. 15 is a side view of the structure of fig. 14.

Fig. 16 is a schematic view of the vertical cross-section structure of fig. 15.

Fig. 17 is a structural schematic diagram of a slidable k-wire holder.

Fig. 18 is a second schematic view of the structure of the part E in fig. 3.

Figure 19 is a schematic view of the construction of the body clip of figure 18.

Fig. 20 is a schematic perspective view of a two-dimensional control mechanism according to the present invention.

Fig. 21 is a schematic cross-sectional view of fig. 20.

Fig. 22 is a schematic perspective view of the bidirectional brake bracket of fig. 20.

Reference numbers in the figures: 1 is a vertical rod, 2 is a lifting tee joint seat, 31 is a longitudinal screw rod, 32 is a transverse screw rod, 321 is a threaded section, 4 is a transverse tee joint seat, 41 is a seat body, 42 is an axial through hole, 43 is a radial connecting seat, 44 is an inner end radial inserting hole, 45 is an annular groove, 46 is an axial sliding locking hole, 47 is a rotating locking hole, 5 is a longitudinal shaft, 6 is a longitudinal tee joint seat, 7 is a lifting rod, 71 is a first flat rod, 72 is a first anti-rotating inserting rod, 8 is a first Kirschner wire seat, 9 is a second Kirschner wire seat, 10 is a first vertical rod, 101 is a second flat rod, 102 is a second anti-rotating inserting rod, 11 is a second vertical rod, 111 is a third flat rod, 12 is a rotating Kirschner wire seat, 121 is a rotating body, 122 is a rotating cover, 123 is a sliding cover, 124 is a fixed wire, 125 is a rotating locking wire, 126 is a Kirschner wire, 127 is a wire locking wire, 127 is a position-yielding hole, 13 is a propelling device, 131 is a constraining sleeve, 132 is an, 14 is a screwing control cap, 15 is a rotary control plate, 16 is a pressure plate, 17 is a transverse shaft (a rotary shaft), 18 is a slidable Kirschner wire seat, 19 is a vertical shaft, 20 is an axial clamping groove, 21 is a Kirschner wire, 23 is a clamp, and 24 is a clamp locking hole. M1 and M2 are an active adjusting mechanism and a passive adjusting mechanism respectively, and P1 and P2 are a three-dimensional adjusting mechanism I and a three-dimensional adjusting mechanism II respectively.

Detailed Description

After fracture, the far end and the near end of the fracture are dislocated with each other, rotated and swung, during the butt joint and reduction process of the far end and the near end of the fracture, adopts a fracture traction reduction device which comprises an active adjusting mechanism M1 and a passive adjusting mechanism M2, as shown in figure 1, the adjusting ends of the two adjusting mechanisms are respectively fixedly provided with a first Kirschner wire and a second Kirschner wire which are respectively fixed at the far end and the near end of the fracture part, firstly, the far end and the near end of the fracture need to be adjusted and drawn to separate the far end and the near end of the fracture, then the distal end and the proximal end of the fracture part are respectively adjusted by the first Kirschner wire and the second Kirschner wire through the active adjusting mechanism and/or the passive adjusting mechanism, the bone seam positions of the distal end and the proximal end are enabled to correspond by moving (transverse moving, longitudinal moving and lifting moving) and angle adjusting, then the bone seams are pushed inwards to realize reset butt joint, and finally the reset part is fixed.

Wherein the active adjustment mechanism and the passive adjustment mechanism can be selected from two combinations of traction components A, B, C, D that can be suitably collocated.