Traction device for traumatic orthopedics department

Abstract

The invention relates to the technical field of orthopedic medical equipment, in particular to a traumatic orthopedic traction device which comprises a bearing frame, a first bearing plate, a second bearing plate and a third bearing plate which are hinged together are arranged on the bearing frame, and an adjusting plate is slidably mounted on the third bearing plate through a sliding assembly. Joint lantern rings used for fixing legs are installed on the adjusting plates, air bags are fixed to the inner walls of the joint lantern rings, a first rotating shaft is rotationally arranged at the bottom of the third bearing plate, a second rotating shaft is rotationally arranged on the bearing frame, and the first rotating shaft and the second rotating shaft are in transmission connection through a belt transmission mechanism. A diseased limb can be automatically lifted, then vein and blood backflow of the diseased limb is facilitated, swelling of the diseased limb is prevented, in addition, traction stretching force can be accurately selected according to the actual trauma damage degree, and the stretching traction force can be conveniently adjusted according to actual needs.

Description

Technical Field

[0001] The invention relates to the technical field of orthopedic medical equipment, in particular to a traumatic orthopedic traction device. Background Art

[0002] Orthopedic traction therapy uses continuous traction, applied force and reaction force to brake the affected limb, reduce local irritation and alleviate the spread of local inflammation, maintain the functional position of the limb, stabilize the fracture ends, relieve pain, facilitate fracture healing, correct and prevent joint deformities caused by muscle contracture, reposition fractures and joint dislocations, relieve muscle spasms, improve venous blood return, eliminate limb swelling, and is a treatment method for preoperative tissue release and postoperative braking. It is mainly used for the treatment of certain diseases of the limbs and spine, or as a means of preoperative preparation and postoperative braking. During traction therapy, attention should be paid to raising the affected limb to facilitate venous and blood return, thereby preventing swelling of the affected limb.

[0003] Chinese patent CN115462941A discloses a trauma orthopedic traction device, comprising: two traction mechanisms and a supporting plate, one end of each traction mechanism is connected to a first clamping assembly, and the other end is connected to a fixed plate, a movable plate is slidably arranged on the fixed plate, and a fixed rod is arranged on both sides, one end of the supporting plate is rotatably connected to the movable plate, and the two traction mechanisms are symmetrically arranged on both sides of the supporting plate, and the supporting plate is slidably arranged with a second clamping assembly; each traction mechanism comprises a traction tube, an adjustment tube and a fixed tube, one end of the traction tube is connected to the first clamping assembly, one end of the adjustment tube is movably sleeved on the other end of the traction tube, the other end of the adjustment tube is connected to one end of the fixed tube, and the other end of the fixed tube is connected to the fixed plate. The invention cannot accurately select the traction and stretching force according to the actual degree of damage of the trauma, is not convenient for adjusting the strength of the stretching and traction according to actual needs, and has a poor fixing effect on the affected limb during traction, which affects the fracture healing efficiency at the trauma site, and at the same time, it is not convenient to adjust the height, and the slow blood circulation will affect the traction effect. In view of the above problems, the present invention proposes a trauma orthopedic traction device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a trauma orthopedic traction device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A trauma orthopedic traction device comprises a support frame, on which a first support plate, a second support plate and a third support plate which are hingedly connected are arranged, an adjustment plate is slidably mounted on the third support plate through a sliding assembly, a joint collar for fixing a leg is mounted on the adjustment plate, an air bag is fixed on the inner wall of the joint collar, a first rotating shaft is rotatably arranged at the bottom of the third support plate, a second rotating shaft is rotatably arranged on the support frame, and the first rotating shaft and the second rotating shaft are transmission-connected via a belt transmission mechanism; A connecting frame is provided between the first rotating shaft and the second rotating shaft, and two ends of the connecting frame are respectively hinged to the first rotating shaft and the second rotating shaft, a screw rod is rotatably provided on the supporting frame, a threaded sleeve is threadedly connected to the screw rod, an adjustment frame is provided between the connecting frame and the threaded sleeve, and two ends of the adjustment frame are respectively hinged to the connecting frame and the threaded sleeve, and the second rotating shaft and the screw rod are connected through a worm gear mechanism; The first rotating shaft and the adjusting plate are connected to each other through a gear rack structure, and the adjusting plate will be driven to move horizontally when the first rotating shaft rotates; An air pumping mechanism is provided at the bottom of the third supporting plate. The air pumping mechanism, the first rotating shaft and the airbag are connected by a linkage structure. When the first rotating shaft rotates, it will drive the air pumping mechanism to repeatedly inflate the airbag.

[0006] A trauma orthopedic traction device as described above: the sliding component includes a slide groove opened on the third supporting plate and a slider fixed on the bottom of the adjustment plate, the outer size of the slider is matched with the inner size of the slide groove, and the slider is slidably engaged in the slide groove.

[0007] A trauma orthopedic traction device as described above: the belt transmission mechanism includes a first pulley fixed at both ends of the first rotating shaft and a second pulley fixed at both ends of the second rotating shaft, and the first pulley and the second pulley are connected by belt transmission.

[0008] A trauma orthopedic traction device as described above: the worm gear mechanism includes a worm fixed on the second rotating shaft and a worm wheel fixed on the lead screw, and the worm is meshingly connected with the worm wheel.

[0009] A trauma orthopedic traction device as described above: the gear rack structure includes a gear fixed on the first rotating shaft and racks fixed on both ends of the adjustment plate, and the gear is meshingly connected with the rack.

[0010] A trauma orthopedic traction device as described above: the air pump mechanism includes a driving gear fixed on the first rotating shaft, a driven gear rotatably arranged under the third supporting plate, and an air cylinder fixed to the bottom of the third supporting plate, the driving gear is meshed with the driven gear, a swing arm is hingedly mounted on the driven gear, a piston rod is hingedly mounted on one end of the swing arm, a piston movably connected to the inside of the air cylinder is fixed on one end of the piston rod, an air inlet pipe and an air outlet pipe are connected to the air cylinder, and one end of the air outlet pipe is connected to the airbag.

[0011] A trauma orthopedic traction device as described above: the air inlet pipe and the air outlet pipe are respectively fixedly installed with a one-way valve, through which only external air is allowed to enter the air cylinder through the air inlet pipe and only the air inside the air cylinder is allowed to inflate the airbag through the air outlet pipe.

[0012] A trauma orthopedic traction device as described above: a crank handle is fixed to one end of the screw rod away from the first supporting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can drive the threaded sleeve to move by rotating the screw rod, thereby driving the adjustment frame to rotate and then driving the connecting frame to rotate, thereby driving the third support plate to be lifted, thereby driving the third support plate to be adjusted in height, so that the affected limb can be automatically raised after being placed on the third support plate, thereby facilitating the venous and blood return of the affected limb, thereby preventing swelling of the affected limb, and the rotation of the screw rod will simultaneously drive the second rotating shaft to rotate, thereby driving the first rotating shaft to rotate, and while the first rotating shaft rotates, the pumping mechanism can cooperate to repeatedly inflate the airbag to tighten the joint collar The affected limb is fixed inside, and the adjustment plate is driven to move through the gear rack structure while the first rotating shaft rotates, thereby driving the joint collar to move, so that the affected limb in the joint collar can be clamped and pulled at the same time, thereby improving the stability and effect of traction. Since the screw rod can be manually rotated and adjusted through the crank handle, the traction strength can be adjusted according to the actual needs of the patient. The traction device has high safety, and there is no need to worry about the influence of external force on the traction strength, thereby improving the healing efficiency of the fracture at the wound. In addition, the crank handle is arranged at one end of the supporting frame, which is conducive to the operation of medical staff and convenient for the activities of other patients in the ward. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first-person structural diagram of a trauma orthopedic traction device.

[0015] Figure 2 This is a second-view structural diagram of a trauma orthopedic traction device.

[0016] Figure 3 This is a third-person perspective structural diagram of a trauma orthopedic traction device after the legs are removed.

[0017] Figure 4for Figure 3 Enlarged structural diagram at A in the middle.

[0018] Figure 5 for Figure 3 Enlarged structural diagram at B in the middle.

[0019] Figure 6 The present invention is a schematic diagram of the cross-sectional structure of a third supporting plate and an adjusting plate of a trauma orthopedic traction device.

[0020] Figure 7 The present invention is a structural schematic diagram of a pumping mechanism of a trauma orthopedic traction device.

[0021] In the figure: 1. supporting frame; 2. first supporting plate; 3. second supporting plate; 4. third supporting plate; 5. adjusting plate; 6. slide groove; 7. slider; 8. joint collar; 9. air bag; 10. first rotating shaft; 11. second rotating shaft; 12. connecting frame; 13. adjusting frame; 14. first pulley; 15. second pulley; 16. belt; 17. screw rod; 18. threaded sleeve; 19. worm; 20. worm wheel; 21. gear; 22. rack; 23. driving gear; 24. driven gear; 25. swing arm; 26. piston rod; 27. air cylinder; 28. piston; 29. ​​air inlet pipe; 30. air outlet pipe; 31. crank handle; 32. guardrail; 33. outrigger. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1 to Figure 7 As an embodiment of the present invention, a trauma orthopedic traction device includes a support frame 1, on which a first support plate 2, a second support plate 3 and a third support plate 4 are hingedly connected, an adjustment plate 5 is slidably mounted on the third support plate 4 through a sliding assembly, a joint collar 8 for fixing the leg is mounted on the adjustment plate 5, an air bag 9 is fixed to the inner wall of the joint collar 8, a first rotating shaft 10 is rotatably mounted on the bottom of the third support plate 4, a second rotating shaft 11 is rotatably mounted on the support frame 1, and the first rotating shaft 10 and the second rotating shaft 11 are connected by a belt transmission mechanism; A connecting frame 12 is provided between the first rotating shaft 10 and the second rotating shaft 11, and the two ends of the connecting frame 12 are respectively hinged to the first rotating shaft 10 and the second rotating shaft 11, a screw rod 17 is rotatably provided on the supporting frame 1, and a threaded sleeve 18 is threadedly connected to the screw rod 17, an adjusting frame 13 is provided between the connecting frame 12 and the threaded sleeve 18, and the two ends of the adjusting frame 13 are respectively hinged to the connecting frame 12 and the threaded sleeve 18, and the second rotating shaft 11 and the screw rod 17 are connected through a worm gear mechanism; The first rotating shaft 10 and the adjusting plate 5 are connected to each other through a gear rack structure, and the first rotating shaft 10 drives the adjusting plate 5 to move horizontally when rotating; An air pumping mechanism is provided at the bottom of the third supporting plate 4. The air pumping mechanism, the first rotating shaft 10 and the airbag 9 are connected by a linkage structure. When the first rotating shaft 10 rotates, it will drive the air pumping mechanism to repeatedly inflate the airbag 9.

[0024] In this embodiment, rotating the screw rod 17 can drive the threaded sleeve 18 to move, thereby driving the adjustment frame 13 to rotate and then driving the connecting frame 12 to rotate, thereby driving the third supporting plate 4 to be lifted, thereby driving the third supporting plate 4 to adjust the height, so that the affected limb can be automatically lifted after being placed on the third supporting plate 4, which is beneficial to the venous and blood return of the affected limb, thereby preventing swelling of the affected limb. The rotation of the screw rod 17 will also drive the second rotating shaft 11 to rotate, and then drive the first rotating shaft 10 to rotate. While the first rotating shaft 10 rotates, it can cooperate with the air pump mechanism to repeatedly inflate the airbag 9 to fix the affected limb in the joint collar 8. While the first rotating shaft 10 rotates, it drives the adjustment plate 5 to move through the gear rack structure, thereby driving the joint collar 8 to move, so that the affected limb in the joint collar 8 can be clamped and pulled at the same time.

[0025] As a further solution of the present invention, the sliding assembly includes a slide groove 6 opened on the third supporting plate 4 and a slider 7 fixed to the bottom of the adjustment plate 5. The outer dimensions of the slider 7 are adapted to the inner dimensions of the slide groove 6, and the slider 7 is slidably engaged in the slide groove 6.

[0026] In this embodiment, the slider 7 is slidably engaged in the slide groove 6 to limit the adjustment plate 5 when it slides on the third supporting plate 4, thereby ensuring the stability of the adjustment plate 5 when it moves.

[0027] As a further solution of the present invention, the belt transmission mechanism includes a first pulley 14 fixed at both ends of the first rotating shaft 10 and a second pulley 15 fixed at both ends of the second rotating shaft 11. The first pulley 14 and the second pulley 15 are connected by a belt 16.

[0028] In this embodiment, when the second rotating shaft 11 rotates, it will drive the second pulley 15 to rotate. The first pulley 14 and the second pulley 15 are connected by a belt 16 to drive the first pulley 14 to rotate, thereby driving the first rotating shaft 10 to rotate, thereby driving the gear 21 on the first rotating shaft 10 to rotate.

[0029] As a further solution of the present invention, the worm gear mechanism includes a worm 19 fixed on the second rotating shaft 11 and a worm wheel 20 fixed on the screw 17 , and the worm 19 is meshingly connected with the worm wheel 20 .

[0030] In this embodiment, the screw 17 rotates and drives the worm wheel 20 to rotate. The worm 19 is meshed with the worm wheel 20 to drive the worm 19 to rotate, thereby driving the second rotating shaft 11 to rotate.

[0031] As a further solution of the present invention, the gear rack structure includes a gear 21 fixed on the first rotating shaft 10 and racks 22 fixed on both ends of the adjustment plate 5, and the gear 21 is meshedly connected with the rack 22.

[0032] In this embodiment, the first rotating shaft 10 rotates and drives the gear 21 to rotate. The gear 21 is meshed with the rack 22 to drive the rack 22 to move horizontally, thereby driving the adjustment plate 5 to move horizontally.

[0033] As a further solution of the present invention, the air pumping mechanism includes a driving gear 23 fixed on the first rotating shaft 10, a driven gear 24 rotatably arranged under the third supporting plate 4, and an air cylinder 27 fixed at the bottom of the third supporting plate 4. A fixing frame is fixed under the third supporting plate 4, and one side of the driven gear 24 is rotatably mounted on the fixing frame through a bearing. The driving gear 23 is meshed with the driven gear 24. A swing arm 25 is hingedly mounted on the driven gear 24, and a piston rod 26 is hingedly mounted at one end of the swing arm 25. A piston 28 movably connected to the inside of the air cylinder 27 is fixed at one end of the piston rod 26. An air inlet pipe 29 and an air outlet pipe 30 are connected to the air cylinder 27, and one end of the air outlet pipe 30 is connected to the airbag 9.

[0034] In this embodiment, the first rotating shaft 10 drives the driving gear 23 to rotate while rotating. The driving gear 23 is engaged with the driven gear 24 to drive the driven gear 24 to rotate, thereby driving the swing arm 25 to swing, thereby driving the piston rod 26 to move back and forth horizontally, thereby driving the piston 28 at one end of the piston rod 26 to move back and forth in the air cylinder 27, and cooperating with the one-way air intake of the air inlet pipe 29 and the one-way air outlet of the air outlet pipe 30 to repeatedly inflate the airbag 9.

[0035] As a further solution of the present invention, one-way valves are fixedly installed on the air inlet pipe 29 and the air outlet pipe 30 respectively, through which only external air is allowed to enter the air cylinder 27 through the air inlet pipe 29 and only the air inside the air cylinder 27 is allowed to inflate the airbag 9 through the air outlet pipe 30.

[0036] In this embodiment, the piston 28 reciprocates in the air cylinder 27 , and cooperates with the one-way air intake of the air inlet pipe 29 and the one-way air outlet of the air outlet pipe 30 to repeatedly inflate the airbag 9 .

[0037] As a further solution of the present invention, a crank handle 31 is fixed to one end of the screw rod 17 away from the first supporting plate 2 .

[0038] In this embodiment, the crank handle 31 is arranged at one end of the support frame 1, which is convenient for the operation of medical staff and the activities of other patients in the ward.

[0039] Optionally, guardrails 32 are fixedly installed on both sides of the support frame 1 to protect the patient, and legs 33 are fixedly installed on the bottom of the support frame 1 to support the support frame 1.

[0040] The working principle of the invention is as follows: the patient lies flat on the first support plate 2, the second support plate 3, and the third support plate 4, with the affected limb of the leg inserted into the joint ring 8 and the back lying flat on the first support plate 2. The medical staff manually rotates the crank 31 to drive the screw rod 17 to rotate, which can drive the threaded sleeve 18 to move, thereby driving the adjustment frame 13 to rotate and then driving the connecting frame 12 to rotate, thereby driving the third support plate 4 to be lifted, thereby driving the third support plate 4 to adjust the height, and then the affected limb can be automatically raised after being placed on the third support plate 4, which is beneficial to the venous and blood return of the affected limb, thereby preventing swelling of the affected limb. The rotation of the screw rod 17 will also drive the second rotating shaft 11 to rotate, thereby driving the first rotating shaft 10 to rotate, and the rotation of the first rotating shaft 10 will also drive the driving gear 23 to rotate, and the meshing of the driving gear 23 and the driven gear 24 can drive the driven gear 24 to rotate, thereby driving the swing arm 25 to swing, thereby driving the piston rod 26 to move horizontally. The reciprocating movement drives the piston 28 at one end of the piston rod 26 to reciprocate in the air cylinder 27, and cooperates with the one-way air intake of the air inlet pipe 29 and the one-way air outlet of the air outlet pipe 30 to repeatedly inflate the air bag 9 to fix the affected limb in the joint collar 8. The first rotating shaft 10 will drive the gear 21 to rotate while the first rotating shaft 10 rotates. The gear 21 is meshed with the rack 22 to drive the rack 22 to move horizontally, thereby driving the adjustment plate 5 to move horizontally, thereby driving the joint collar 8 to move, so that the affected limb in the joint collar 8 can be clamped and pulled at the same time, thereby improving the stability and pulling effect of the pulling. Since the screw rod 17 can be manually rotated and adjusted through the crank handle 31, the pulling force of the pulling can be adjusted according to the actual needs of the patient. The traction device has high safety, and there is no need to worry about the external force affecting the pulling force, thereby improving the fracture healing efficiency at the wound. In addition, the crank handle 31 is arranged at one end of the support frame 1, which is conducive to the operation of medical staff and convenient for the activities of other patients in the ward.

[0041] The above embodiments are exemplary rather than restrictive, so the technical solutions of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention are all included in the present invention.

Claims

1. A trauma orthopedic traction device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a first support plate (2), a second support plate (3) and a third support plate (4) which are hingedly connected together; an adjustment plate (5) is slidably mounted on the third support plate (4) via a sliding assembly; a joint ring (8) for fixing the leg is mounted on the adjustment plate (5); an air bag (9) is fixed to the inner wall of the joint ring (8); a first rotating shaft (10) is rotatably mounted on the bottom of the third support plate (4); a second rotating shaft (11) is rotatably mounted on the support frame (1); the first rotating shaft (10) and the second rotating shaft (11) are connected to each other via a belt transmission mechanism; A connecting frame (12) is provided between the first rotating shaft (10) and the second rotating shaft (11); two ends of the connecting frame (12) are respectively hinged to the first rotating shaft (10) and the second rotating shaft (11); a screw rod (17) is rotatably provided on the supporting frame (1); the second rotating shaft (11) and the screw rod (17) are connected to each other through a worm gear mechanism.

2. A trauma orthopedic traction device according to claim 1, characterized in that: A threaded sleeve (18) is threadedly connected to the screw rod (17), and an adjustment frame (13) is provided between the connecting frame (12) and the threaded sleeve (18).

3. A trauma orthopedic traction device according to claim 2, characterized in that: The two ends of the adjustment frame (13) are respectively hinged to the connecting frame (12) and the threaded sleeve (18); the first rotating shaft (10) and the adjustment plate (5) are connected to each other through a gear rack structure; when the first rotating shaft (10) rotates, the adjustment plate (5) is driven to move horizontally; An air pumping mechanism is provided at the bottom of the third supporting plate (4); the air pumping mechanism, the first rotating shaft (10), and the air bag (9) are connected by a linkage structure; when the first rotating shaft (10) rotates, the air pumping mechanism is driven to repeatedly inflate the air bag (9); The sliding assembly comprises a slide groove (6) provided on the third supporting plate (4) and a slider (7) fixed to the bottom of the adjusting plate (5); the outer dimensions of the slider (7) are matched with the inner dimensions of the slide groove (6); the slider (7) is slidably engaged in the interior of the slide groove (6); The belt transmission mechanism comprises a first belt pulley (14) fixed at both ends of the first rotating shaft (10) and a second belt pulley (15) fixed at both ends of the second rotating shaft (11), and the first belt pulley (14) and the second belt pulley (15) are connected to each other via a belt (16); The air pump mechanism comprises a driving gear (23) fixed on the first rotating shaft (10), a driven gear (24) rotatably arranged below the third supporting plate (4), and an air cylinder (27) fixed at the bottom of the third supporting plate (4), wherein the driving gear (23) meshes with the driven gear (24), a swing arm (25) is hingedly mounted on the driven gear (24), a piston rod (26) is hingedly mounted on one end of the swing arm (25), and a piston (28) movably clamped in the air cylinder (27) is fixed on one end of the piston rod (26).

4. A trauma orthopedic traction device according to claim 3, characterized in that: The worm gear mechanism comprises a worm (19) fixed on the second rotating shaft (11) and a worm wheel (20) fixed on the lead screw (17), wherein the worm (19) is meshingly connected with the worm wheel (20).

5. The trauma orthopedic traction device according to claim 3, characterized in that: The gear rack structure comprises a gear (21) fixed on the first rotating shaft (10) and racks (22) fixed on both ends of the adjustment plate (5), and the gear (21) is meshingly connected with the racks (22).

6. The trauma orthopedic traction device according to claim 3, characterized in that: An air inlet pipe (29) and an air outlet pipe (30) are connected to the air cylinder (27), and one end of the air outlet pipe (30) is connected to the air bag (9).

7. A trauma orthopedic traction device according to claim 6, characterized in that: One-way valves are fixedly mounted on the air inlet pipe (29) and the air outlet pipe (30), respectively, and the one-way valves only allow external air to enter the air cylinder (27) through the air inlet pipe (29) and only allow the air inside the air cylinder (27) to inflate the air bag (9) through the air outlet pipe (30).

8. The trauma orthopedic traction device according to claim 1, characterized in that: A crank handle (31) is fixed to one end of the screw rod (17) away from the first supporting plate (2).

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