CN113893104B - Fixing device for traumatic orthopedics - Google Patents

Abstract

The invention discloses a fixation device for traumatic orthopedics, which comprises a bottom plate, a track is arranged on the upper side of the bottom plate, a sliding platform is slidably connected to the track, racks are respectively arranged on the two sliding platforms, a gear is arranged at the bottom of the track, and a gear is arranged at the upper end of the gear. There is a driving mechanism, a turntable is connected to the slide table, a locking mechanism is set on the slide table and the turntable, a support plate is hinged at the front end of the turntable, a bracket is hinged at the back end of the turnplate, and a belt is provided on the support plate to support The lower side of the plate is provided with locking teeth, the lower side of the support plate is provided with a limit frame, the upper end of the bracket is provided with a cross bar, and the left and right sides of the cross bar are respectively slidingly connected with ring gears, and the opposite ends of the two ring gears are respectively provided with three pull rods. The left and right ends of the cross bar are respectively provided with through holes, the left and right sides of the cross bar are respectively provided with sliding bores, and the left and right sides of the cross bar are respectively slidably connected with sliding sleeves. The bottom of the sliding sleeve is inserted into the sliding bore and the through hole, and the two sliding sleeves correspond The pull rod on the side is fixedly connected, and the sliding sleeve, pull rod and ring gear on the same side form a linkage assembly that slides along the cross bar.

Description

A fixation device for trauma orthopedics

technical field

The invention relates to the technical field of orthopedic auxiliary fixation equipment, in particular to a fixation device for trauma orthopedics.

Background technique

Reduction, fixation, and healing are the trilogy of fracture treatment, and fixation is the connecting link between reduction and healing. Good fixation can not only consolidate the effect of reduction, brake the affected area and relieve pain, but also promote the speed and speed of healing. quality, prevent injury from aggravating, prevent shock, and prevent infection. In the course of trauma orthopedics treatment, bone and joint injuries of the extremities are the most common. For the post-rehabilitation treatment of patients with leg fractures, it is necessary to fix the affected part and raise the injured leg If necessary, it is necessary to perform traction on the fracture to maintain the reduction of the fracture and relieve pain.

The traditional lower limb immobilization device is just a simple fixed support plate to support and fix the patient's legs. This kind of device has a small width and poor stability. It can only fix one leg separately and cannot complete the adjustment and fixation of both legs of the patient at the same time, which is inconvenient For raising and fixing the patient's legs, the angle of the divergent legs cannot be adjusted. Therefore, there is a lack of a fixing device that can simplify the integration of parts and facilitate adjustment, so that it is suitable for patients with broken legs and helps patients recover early.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a fixation device for trauma orthopedics, which effectively solves the problem that the existing device cannot fix the patient's legs at the same time and is inconvenient to adjust the angle, and at the same time simplifies Adjustment and positioning methods are convenient for medical staff to operate and use.

The technical solution is: including the bottom plate, the upper side of the bottom plate is provided with a left-right direction and an arc-shaped track, the left and right sides of the track are respectively slidingly connected with sliding tables, and the opposite ends of the two sliding tables are respectively provided with the same curvature as the track. Rack, two racks are arranged front and back in the track, a gear located between the two racks and meshed with the two racks is connected in rotation in the track, the upper end of the gear is provided with a driving mechanism, and the sliding table is disassembled and connected with The turntable, the slide table and the turntable are equipped with a locking mechanism. The front end of the turntable is hinged with a support plate, and the rear end of the turntable is hinged with a bracket. The two ends are respectively provided with a plurality of locking teeth arranged in front and back, the left and right ends of the lower side of the support plate are respectively provided with limiting frames located outside the locking teeth, and the upper end of the bracket is provided with left and right axial cross bars inserted into the limiting frame. The left and right sides of the cross bar are slidingly connected by splines with ring gears that can be snapped into the locking teeth. The opposite ends of the two ring gears are respectively provided with three tie rods extending axially along the cross bar and penetrating through the bracket. The left and right sides of the cross bar The two ends are respectively provided with through-holes with openings outward, and the left and right sides of the crossbar are respectively provided with three smooth bores in the left-right direction and connected with the through-holes. The bottom of the sliding sleeve is inserted into the smooth bore and the through hole, and the two sliding sleeves are respectively fixedly connected with the pull rods on the corresponding sides. The sliding sleeve, pull rod and ring gear on the same side form a linkage assembly that slides along the cross bar.

The invention has ingenious structure and convenient operation. The gear and two racks are driven in an arc-shaped track, and the relative position of the two sliding tables can be adjusted only through the driving mechanism on the gear, thereby imitating the patient's legs. The diverging distance achieves the effect of fixing the patient's legs at the same time, and the worm gear in the driving mechanism has a self-locking function, which ensures that the sliding table can be limited and fixed at each position, with strong stability. The combination of the rotation and the locking mechanism realizes the fine adjustment of the horizontal angle of the support plate, improves the comfort of the legs when using, and through the function of the semi-submersible card ball and the round groove, it makes the rotation and adjustment of the turn plate have a sense of frustration, which is convenient The medical staff controls the adjustment angle, and after removing the gland, the turn plate can be taken off from the slide table as a whole, which can be used not only for patients with double leg fractures but also for patients with single leg fractures, thereby expanding the scope of application;

In the present invention, a sliding sleeve, a pull rod and a ring gear are used to form a linkage assembly slidingly connected along the cross bar, which is used together with the thrust spring and the locking teeth on the lower side of the support plate, so that the adjustment and limit of the elevation angle of the support plate are more convenient. The ring gears on the left and right sides need to be disengaged from the clamping teeth at the same time to release the limit on the support plate, which can effectively prevent accidental touches, eliminate potential hidden dangers, improve the safety and stability of the support plate, and make the adjustment operation and use process easier. Peace of mind and convenience.

Description of drawings

Fig. 1 is a front perspective view of the present invention.

Fig. 2 is an axonometric view of the present invention after the right rotating plate is removed.

Figure 3 is a full cutaway isometric view of the present invention.

Fig. 4 is a side view of the support plate and the rotating plate of the present invention.

Fig. 5 is an enlarged view of A in Fig. 4 of the present invention.

Fig. 6 is a sectional view of the support plate and the rotating plate of the present invention along the axial direction of the cross bar.

Fig. 7 is an enlarged view of B in Fig. 6 of the present invention.

Fig. 8 is a structural schematic diagram of the driving mechanism of the present invention.

Fig. 9 is a structural schematic diagram of one end of the crossbar and the linkage assembly of the present invention.

Detailed ways

The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 9, it includes the bottom plate 1, the upper side of the bottom plate 1 is provided with a left-right direction and an arc-shaped track 2, and the left and right sides of the track 2 are respectively slidably connected to the slide table 3, and the opposite ends of the two slide tables 3 The racks 4 with the same radian as the track 2 are respectively provided, and the two racks 4 are arranged front and back in the track 2, and the track 2 is rotatably connected with a gear that is located between the two racks 4 and meshes with the two racks 4 at the same time. Gear 5, the upper end of the gear 5 is provided with a driving mechanism, the sliding table 3 is disassembled and connected with a rotating plate 6, the sliding table 3 and the rotating plate 6 are provided with a locking mechanism, the front end of the rotating plate 6 is hinged with a support plate 7, and the rear of the rotating plate 6 The end is hinged with a bracket 8, and the front and rear sides of the support plate 7 are respectively provided with left and right belts 9, and the left and right ends of the support plate 7 are respectively provided with a plurality of front and rear locking teeth 10, and the left and right sides of the support plate 7. The upper end of the bracket 8 is provided with a cross bar 12 which is axially left and right and inserted into the limit frame 11. The ring gear 13 connected to the bayonet 10, the opposite ends of the two ring gears 13 are respectively provided with three tie rods 14 extending axially along the cross bar 12 and penetrating the bracket 8, and the left and right ends of the cross bar 12 are respectively provided with openings to The outer through hole 15, the left and right sides of the cross bar 12 are respectively provided with three smooth bores 16 in the left and right direction and communicated with the through hole 15, and the left and right sides of the cross bar 12 are respectively slidably connected with sliding sleeves located on the outside of the support plate 7 and open outward. 17. The bottom of the sliding sleeve 17 is inserted into the sliding bore 16 and the through hole 15, and the two sliding sleeves 17 are respectively fixedly connected with the pull rods 14 on the corresponding sides. linkage components.

Further, the bottom of the track 2 is provided with three limit bars 18 having the same radian as the track 2, the bottom of the slide table 3 slides along the limit bars 18, and the slide table 3 is provided with an opening facing down the slideway 19, and the rack 4 can be Inserting it into the corresponding slideway 19 ensures that when the two sliding tables 3 are close to each other, their respective racks 4 can pass through each other, preventing the racks 4 from blocking the movement of the sliding table 3, thus expanding the size of the two sliding tables. 3's effective itinerary.

Further, the drive mechanism includes a worm gear 20, a worm 21 and a casing 22 located outside the two, the worm gear 20 is coaxially connected with the gear 5, the worm gear 20 and the gear 5 rotate synchronously, and the rear end of the worm screw 21 is provided with a crank handle 23, The upper end of the bottom plate 1 is provided with a bearing seat 24 corresponding to the rocker 23, and the rocker 23 is rotated to make the worm gear 21 rotate in cooperation to control the forward rotation or reverse rotation of the gear 5, thereby making the two sliding tables 3 approach or move away from each other along the track 2, And the self-locking of the worm gear is used to limit the position of the slide table 3, so as to realize the adjustment and fixation of the diverging distance of the patient's legs.

Further, the upper end of the slide table 3 is provided with a turntable 25, the turntable 25 is coaxially connected with a mandrel 26 having a diameter smaller than the turntable 25 and passing through the turntable 6, the turntable 6 can contact the turntable 25 and rotate along the mandrel 26 , the front and rear ends of the rotating plate 6 are respectively provided with support seats 27 in contact with the bottom plate 1, and rotating the rotating plate 6 can realize the fine adjustment of the horizontal angle of the support plate 7, and at the same time, the two front and rear support seats 27 can ensure that the rotating plate 6 and the support Plate 7 is stable and reliable when in use.

Further, the locking mechanism includes a plurality of semi-submersible snap beads 28 uniformly distributed along the circumferential direction of the turntable 25 and a gland 29 threadedly connected to the mandrel 26 above the turntable 6, and the lower side of the turntable 6 is provided with A plurality of circular grooves 30 corresponding to the semi-submersible clamping beads 28 one-to-one, and the gland 29 rotates up and down along the thread of the mandrel 26, cooperate with the semi-submersible clamping beads 28 to realize the rotation and limit of the rotating plate 6.

Further, the outlet of the through hole 15 is threadedly connected with a blocking cap 31, and the through hole 15 is provided with a thrust spring 32 between the blocking cap 31 and the sliding sleeve 17, and the sliding sleeve 17 is automatically slid by the thrust spring 32. Resetting makes the adjustment and positioning of the raising angle of the support plate 7 more convenient.

Further, the free end of the support plate 7 is provided with a U-shaped groove 33 below it, and a drawer plate 34 is slidably connected to the U-shaped groove 33, and the use length of the support plate 7 can be extended by pulling out the drawer plate 34. A wave-shaped elastic piece 35 is provided on the upper side of the drawing plate 34, and the elastic piece 35 bounces up after the drawing plate 34 is pulled out to support the patient's ankle more comfortably.

Further, the front side of the bottom plate 1 is provided with a cushion 36, and the end of the cushion 36 close to the track 2 is arc-shaped, and the cushion 36 is in contact with the thigh to improve the comfort of the patient.

Further, the left and right ends of the base plate 1 are respectively provided with two claws 37 that can be stuck on both sides of the hospital bed, and the left and right ends of the slide table 3 are provided with a dust-proof film 38 that can cover the top of the track 2. The dust-proof film 38 is connected to the side of the shell 22 near the end of the shell 22, and the end of the dust-proof film 38 far away from the shell 22 is connected to the outer end of the track 2. The dust-proof film 38 expands or shrinks with the movement of the slide table 3 to prevent debris from entering the track 2 from hindering the slide. Station 3 moves.

Further, the left and right sides of the cross bar 12 are respectively provided with buffer pads 39, and the two buffer pads 39 are respectively located between the same-side sliding sleeve 17 and the limit frame 11, and the pull rod 14 can pass through the same-side buffer pads 39, The two sides of the cross bar 12 are respectively provided with a buffer seat 40 located inside the locking tooth 10. The buffer seat 40 can be in contact with the ring gear 13 on the same side. The buffer pad 39 effectively buffers the impact force of the sliding sleeve 17 on the limit frame 1. The buffer seat 40 then helps the positioning of the ring gear 13 to make it convenient to engage with the bayonet 10 .

When in use, the base plate 1 is placed on the hospital bed of a patient with a leg fracture, and the four corners of the base plate 1 are pressed so that the claws 37 are stuck on both sides of the bed to complete the fixing of the base plate 1; 20 rotates with the gear 5, and the rotation of the gear 5 makes the two racks 4 meshed with it slide along the track 2 at the same time, thereby driving the slide table connected to the two racks 4 to slide synchronously, and using the forward or reverse rotation of the gear 5 Realize that the two sliding tables 3 approach or move away from each other along the track 2 (refer to Figure 8), the sliding table 3 is provided with a slideway 19 with the opening facing downward, and the rack 4 can pass through the slideway 19 on the corresponding side to prevent When the rack 4 touches the sliding table 3, the dust-proof film 38 above the track 2 stretches or shrinks when the sliding table 3 moves, and the worm gear and worm have a self-locking function, so that the relative positions of the two supporting plates 7 remain fixed, ensuring It is stable and reliable when used by the patient. At the same time, rotate the gland 29 above the rotating plate 6 to make it rotate upward along the mandrel 26, so that the gland 29 is out of the extrusion of the rotating plate 6. At this time, turning the rotating plate 6 can move it along the The turntable 25 rotates, and under the cooperation of the semi-submersible snap beads 28 and the circular groove 30, the rotation of the turntable 6 has a sense of frustration (refer to the accompanying drawing 3), and realizes the fine adjustment of the horizontal angle of the support plate 7, and the fine adjustment angle is convenient for turning Control, after the adjustment is completed, the gland 29 is rotated downward along the thread of the mandrel 26 and squeezed on the rotary plate 6. The circular groove 30 corresponds to the semi-submersible snap bead 28, and realizes the function of limiting the rotary plate 6. It is located on the rotary plate 6 The two support seats 27 at the bottom are in contact with the upper side of the base plate 1, making the rotating plate 6 and the support plate 7 above it more stable as a whole. Similarly, if the gland 29 is completely removed from the mandrel 26, it can be upward Lift the rotating plate 6 to make its base disengage from the rotating disk 25, thereby taking off the entire rotating plate 6.

After the relative positions of the two support plates 7 and the angles of the support plates 7 themselves have been adjusted, the medical personnel hold the sliding sleeves 17 on both sides of the support plate 7 with both hands, and simultaneously pull the sliding sleeves 17 on both sides with their fingers to move outwards. 17 slides outward on the cross bar 12 along the smooth bore 16. Since the sliding sleeve 17 and the ring gear 13 on the same side are connected by a pull rod 14, the pull rod 14 runs through the bracket 10 and is inserted into the limit frame 11. The sliding sleeve 17 passes through the pull rod 14 drives the ring gear 13 to move outward synchronously, and the ring gear 13 is disengaged from the clamping connection with the locking teeth 10. At this time, the cross bar 12 can be lifted up and down to make the bracket 8 rotate along its hinge, and then the support plate 7 can be raised to a suitable position. Angle, because the sliding sleeve 17 continues to squeeze the thrust spring 32 when it moves outward, the inner side of the ring gear 13 is splined with the cross bar 12, so that when the ring gear 13 moves axially along the cross bar 12, its circular rotation is limited, and then First loosen the sliding sleeve 17, under the elastic force of the thrust spring 32, the sliding sleeve 17, the pull rod 14 and the ring gear 13 slide synchronously to the inner side of the support plate 7, so that the outer gear teeth of the ring gear 13 are engaged with the locking teeth 10, and the buffer pad 39 And the buffer seat 40 plays a buffering and limiting role. At this time, the support plate 7, the rotating plate 6 and the bracket 8 form a triangular structure to realize the stable support of the support plate 7, thereby completing the adjustment and positioning of the support plate 7 elevation angle. And the positioned support plate 7 is not easy to loosen, and is firmly fixed.

After the adjustment of the raising angle of the support plate 7 is completed, the patient's leg is placed on the support plate 7, the soft pad 36 on the front side of the base plate 1 is in contact with the patient's thigh, and the patient's leg is fixed by winding each belt 9 in turn. At this time, if the patient's legs are longer, the pull-out plate 34 in the U-shaped groove 33 can be extracted. After the pull-out plate 34 is extracted, the shrapnel 35 extruded from the support plate 7 will bounce upwards, so that the support of the patient's ankle More comfortable; in addition, when the patient's legs rest on the support plate 7, the adjustment of the relative position of the support plate 7 and the adjustment of the elevation angle of the support plate 7 can also be completed according to the above operations, which is more convenient for medical staff to use.

The present invention utilizes the gear transmission of the gear and the two racks in the arc-shaped track, and the adjustment of the relative position of the two sliding tables can be realized only through the driving mechanism on the gear, so as to imitate the distance that the patient's legs diverge and realize At the same time, the effect of fixing the patient's legs, and the worm gear in the driving mechanism has a self-locking function, which ensures that the sliding table can be limited and fixed at each position, and the stability is strong, using the rotation of the turntable and the turntable and the locking mechanism With the cooperation, the fine adjustment of the horizontal angle of the support plate is realized, which improves the comfort of the legs during use, and through the function of the semi-submersible card beads and the round groove, there is a sense of frustration when rotating and adjusting the rotating plate, which is convenient for medical staff to control the adjustment angle , after removing the gland, the turntable can be taken off from the sliding table as a whole, which can be used not only for patients with double leg fractures but also for patients with single leg fractures, thereby expanding the scope of application;

In the present invention, a sliding sleeve, a pull rod and a ring gear are used to form a linkage assembly slidingly connected along the cross bar, which is used together with the thrust spring and the locking teeth on the lower side of the support plate, so that the adjustment and limit of the elevation angle of the support plate are more convenient. The ring gears on the left and right sides need to be disengaged from the clamping teeth at the same time to release the limit on the support plate, which can effectively prevent accidental touches, eliminate potential hidden dangers, improve the safety and stability of the support plate, and make the adjustment operation and use process easier. Peace of mind and convenience.

Claims (7)

1. A fixation device for trauma orthopedics, comprising a base plate (1), characterized in that, the upper side of the base plate (1) is provided with a left-right direction and an arc-shaped track (2), and the left and right sides of the track (2) slide respectively The sliding table (3) is connected, and the opposite ends of the two sliding tables (3) are respectively equipped with racks (4) with the same radian as the track (2), and the two racks (4) are arranged front and back in the track (2) , the track (2) is rotatably connected with a gear (5) located between the two racks (4) and meshing with the two racks (4) at the same time, the upper end of the gear (5) is provided with a driving mechanism, and the sliding table (3 ) is disassembled and connected with a rotary plate (6), the sliding table (3) and the rotary plate (6) are provided with a locking mechanism, the front end of the rotary plate (6) is hinged with a support plate (7), and the rear end of the rotary plate (6) A bracket (8) is hinged, and the front and rear sides of the support plate (7) are respectively provided with belts (9) in the left and right directions, and the left and right ends of the lower side of the support plate (7) are respectively provided with a plurality of locking teeth (10) arranged in the front and rear. ), the left and right ends of the lower side of the support plate (7) are respectively provided with limit frames (11) located on the outside of the latch teeth (10), and the upper end of the bracket (8) is provided with a left and right axis and inserted into the limit frame (11) The cross bar (12), the left and right sides of the cross bar (12) are respectively slidably connected with the ring gear (13) which can be clamped in the bayonet (10) through splines, and the opposite ends of the two ring gears (13) are respectively There are three pull rods (14) extending axially along the cross bar (12) and penetrating the support (8). The left and right ends of the cross bar (12) are respectively provided with through holes (15) that open outwards. The cross bar (12) There are three smooth bores (16) in the left and right directions and connected with the through hole (15) on the left and right sides respectively, and the left and right sides of the cross bar (12) are respectively slidably connected with sliding sleeves ( 17), the bottom of the sliding sleeve (17) is inserted into the sliding bore (16) and the through hole (15), and the two sliding sleeves (17) are respectively fixedly connected with the pull rods (14) on the corresponding side. The pull rod (14) and the ring gear (13) constitute a linkage assembly that slides along the cross bar (12); The drive mechanism includes a worm gear (20) and a worm (21) and a casing (22) located outside the two, the worm gear (20) is coaxially connected with the gear (5), and the worm gear (20) and the gear (5) rotate synchronously , the rear end of the worm (21) is provided with a rocker (23), and the upper end of the bottom plate (1) is provided with a bearing seat (24) corresponding to the rocker (23); The upper end of the slide table (3) is provided with a turntable (25), and the turntable (25) is coaxially connected with a mandrel (26) whose diameter is smaller than the turntable (25) and runs through the turntable (6). It can be in contact with the turntable (25) and rotate along the mandrel (26). The front and rear ends of the turntable (6) are respectively provided with support seats (27) in contact with the bottom plate (1); The locking mechanism includes a plurality of semi-submersible snap beads (28) uniformly distributed along the circumferential direction of the turntable (25) and a gland (29) screwed to the mandrel (26) above the turntable (6), A plurality of circular grooves (30) corresponding to the semi-submersible snap beads (28) are provided on the lower side of the rotating plate (6). 2. A fixation device for trauma orthopedics according to claim 1, characterized in that, the bottom of the track (2) is provided with three limit strips (18) with the same radian as the track (2), and the slide table ( 3) The bottom slides along the limit bar (18), and the sliding table (3) is provided with an opening downward slideway (19), and the rack (4) can be inserted into the corresponding slideway (19). 3. A fixation device for trauma orthopedics according to claim 1, characterized in that a plug cap (31) is threadedly connected to the outlet of the through hole (15), and a plug cap (31) is installed in the through hole (15). Push spring (32) between cap (31) and sliding sleeve (17). 4. A fixation device for trauma orthopedics according to claim 1, characterized in that, the free end of the support plate (7) is provided with a U-shaped groove (33) below it, and the U-shaped groove (33) A drawer plate (34) is slidingly connected to the inside, and a wave-shaped shrapnel (35) is provided on the upper side of the drawer plate (34). 5. A fixation device for trauma orthopedics according to claim 1, characterized in that a cushion (36) is provided on the front side of the bottom plate (1), and the cushion (36) is close to one end of the track (2) Arc-shaped. 6. A fixation device for trauma orthopedics according to claim 1, characterized in that, the left and right ends of the bottom plate (1) are respectively provided with two claws (37) that can be stuck on both sides of the hospital bed, sliding The left and right ends of the platform (3) are provided with a dust-proof film (38) that can cover the top of the track (2). The end of the dust-proof film (38) near the shell (22) is connected to the side of the shell (22). 38) The end away from the housing (22) is connected to the outer end of the track (2), and the dust-proof film (38) expands or shrinks as the sliding table (3) moves. 7. A fixation device for trauma orthopedics according to claim 1, characterized in that, the left and right sides of the cross bar (12) are respectively detached and connected with buffer pads (39), and the two buffer pads (39) are respectively Located between the sliding sleeve (17) and the limit frame (11) on the same side, the pull rod (14) can pass through the buffer pad (39) on the same side, and the two sides of the cross bar (12) are respectively equipped with The buffer seat (40), the buffer seat (40) can be in contact with the ring gear (13) on the same side.

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