Electronic tractor for orthopedics department
By using a motor-driven threaded rod design in the orthopedic electronic traction device, combined with a semi-circular retaining bar and splint fixation, the problem of existing orthopedic traction devices being susceptible to external impacts is solved, achieving stable traction force application and improved patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN SECOND HOSPITAL
- Filing Date
- 2025-01-14
- Publication Date
- 2026-05-05
AI Technical Summary
The weights of existing orthopedic traction devices are susceptible to changes in force due to external impacts, affecting patient comfort and treatment outcomes.
An orthopedic electronic traction device is used, which uses a motor to drive a threaded rod to move a movable plate. Combined with a semi-circular clamp and splint to fix the patient's foot, a controllable traction force can be applied.
It effectively avoids force changes caused by external collisions, improves patient comfort and treatment effectiveness, and ensures the stability and accuracy of traction force.
Smart Images

Figure CN224193629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of medical devices, and more specifically, to an orthopedic electronic traction device. Background Technology
[0002] Orthopedic traction is an important treatment method in orthopedics. It utilizes the principles of action and reaction in mechanics, applying traction through gravity to the affected limb to achieve therapeutic goals. Orthopedic traction devices are commonly used medical equipment in orthopedic treatment. They maintain and stabilize bone position by applying continuous traction, promoting fracture healing or correcting skeletal deformities. Primarily, it uses external force applied to the skeletal system, altering bone position and joint stress through traction, thereby treating fractures, joint dislocations, bone hyperplasia, and other conditions. The effects of traction include stretching fracture ends, separating joints, and reducing bone load, which helps promote fracture healing, improve joint function, and relieve pain.
[0003] Currently, most methods use traction weights to pull the legs. However, these weights are usually placed outside the bed, increasing the risk of accidental impact. When the weight is bumped, it alters the force applied to the leg, causing pain for the patient. To address these issues, we have developed an orthopedic electronic traction device.
[0004] The information disclosed above in this background section is only intended to enhance the understanding of the background section of this utility model, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content
[0005] In order to solve the problems mentioned in the background art, the present invention provides an orthopedic electronic traction device.
[0006] The orthopedic electronic traction device provided by this utility model adopts the following technical solution:
[0007] An orthopedic electronic traction device includes a placement frame; a movable plate slidably disposed on top of the placement frame; a fixing mechanism disposed on top of the movable plate for fixing the patient's foot; and a driving mechanism disposed inside the placement frame for driving the movable plate to move on top of the placement frame. The driving mechanism includes a threaded rod rotatably mounted inside the placement frame. The bottom of the movable plate is threadedly connected to the threaded rod via a slider. A motor is mounted inside the placement frame for driving the threaded rod to rotate forward and backward within the placement frame.
[0008] Preferably, two sliding rods are fixedly connected inside the placement frame, and the bottom of the movable plate is slidably connected to the two sliding rods via a slider.
[0009] Preferably, the fixing mechanism includes a pair of clamps slidably disposed on the top of the movable plate, and each of the two clamps is provided with a positioning component on its side for positioning and fixing the clamps whose position is adjusted, and a semi-circular retaining strip is fixedly connected to the opposite side of each of the two clamps.
[0010] Preferably, the top of the movable plate is provided with a dovetail groove, and the clamping plate is slidably connected in the dovetail groove by a dovetail block.
[0011] Preferably, the positioning assembly includes a sleeve fixed to the side of the clamping plate, a rod slidably inserted inside the sleeve, a washer fixed to the middle of the rod, a spring passing through the middle of the rod between the washer and the sleeve, the bottom end of the rod being able to press against the top of the movable plate, a pull plate slidably connected to the side of the clamping plate, and the bottom of the pull plate being fixed to the top of the two rods.
[0012] Preferably, the top of the movable plate has multiple equidistant insertion holes, and the bottom end of the insertion rod can be inserted into the insertion holes.
[0013] Preferably, positioning strips are inserted and fitted on both sides of the placement frame for fixing the patient's leg joints.
[0014] Preferably, the positioning strip includes a first strip, and a second strip is slidably inserted into the side of the first strip.
[0015] In summary, this utility model has the following beneficial technical effects:
[0016] By placing the leg requiring traction on the movable plate, ensuring the foot is positioned in front of the two semi-circular locking strips, then pushing one clamp so that the side of one semi-circular locking strip is against the foot, and then fixing the adjusted clamp with a positioning component, and then pushing the other clamp so that the other semi-circular locking strip engages with the foot, the motor drives the threaded rod to rotate, causing the movable plate to move on the placement frame, thereby stretching and restricting the leg. Finally, conventional traction weights are used for traction. This structural design allows the leg to be restricted before traction, preventing leg deformation. At the same time, the movable plate can be moved by the motor to stretch the leg, thus achieving the traction effect.
[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the structure of an orthopedic electronic traction device according to an embodiment of this utility model;
[0019] Figure 2 This is a schematic diagram of the other side of an orthopedic electronic traction device according to an embodiment of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of an orthopedic electronic traction device according to an embodiment of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the sleeve in an embodiment of this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the first slat in this embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the structure of slat one and slat two in an embodiment of this utility model;
[0024] Figure 7 This is a schematic diagram of the structure of the other side of the first and second slats in this embodiment of the present invention.
[0025] Explanation of reference numerals in the attached drawings: 1. Placement frame; 2. Movable plate; 3. Fixing mechanism; 300. Clamping plate; 301. Semi-circular retaining strip; 302. Dovetail groove; 303. Sleeve; 304. Insert rod; 305. Pull plate; 306. Insertion hole; 307. Dovetail block; 4. Drive mechanism; 400. Threaded rod; 401. Motor; 402. Slide rod; 5. Slat 1; 6. Slat 2. Detailed Implementation
[0026] The following is in conjunction with the appendix Figures 1 to 7 The present invention will be described in further detail below.
[0027] It should be noted that the accompanying drawings are schematic and not to scale. For clarity and convenience, the relative dimensions and proportions of the parts shown are exaggerated or reduced in size; all dimensions are merely illustrative and not limiting. Furthermore, the same reference numerals are used for the same structures, elements, or fittings appearing in more than two drawings to indicate similar features.
[0028] Example 1
[0029] This utility model discloses an orthopedic electronic traction device. (Refer to...) Figures 1 to 4An orthopedic electronic traction device includes a placement frame 1; a movable plate 2, slidably disposed on the top of the placement frame 1; a fixing mechanism 3, disposed on the top of the movable plate 2, for fixing the patient's foot; and a driving mechanism 4, disposed inside the placement frame 1, for driving the movable plate 2 to move on the top of the placement frame 1. The driving mechanism 4 includes a threaded rod 400 rotatably mounted inside the placement frame 1. The bottom of the movable plate 2 is threadedly connected to the threaded rod 400 via a slider. A motor 401 (servo motor) is mounted inside the placement frame 1 for driving the threaded rod 400 to rotate forward and backward within the placement frame 1. The motor 401 is controlled by a PLC controller and is capable of forward and reverse rotation.
[0030] Specifically, two slide bars 402 are fixedly connected inside the placement frame 1, and the bottom of the movable plate 2 is slidably connected to the two slide bars 402 via a slider.
[0031] Specifically, the fixing mechanism 3 includes a pair of clamps 300 that are slidably disposed on the top of the movable plate 2, and both clamps 300 are provided with positioning components on their sides for positioning and fixing the clamps 300 whose positions are adjusted. The opposite sides of the two clamps 300 are fixedly connected with semi-circular clips 301, and rubber pads are pasted inside the semi-circular clips 301.
[0032] Specifically, the top of the movable plate 2 is provided with a dovetail groove 302, and the clamping plate 300 is slidably connected in the dovetail groove 302 through the dovetail block 307.
[0033] Specifically, the positioning component includes a sleeve 303 fixed to the side of the clamping plate 300, a rod 304 slidably inserted inside the sleeve 303, a washer fixed to the middle of the rod 304, a spring passing through the middle of the rod 304 between the washer and the sleeve 303, and the bottom end of the rod 304 being able to press against the top of the movable plate 2. A pull plate 305 is slidably connected to the side of the clamping plate 300, and the bottom of the pull plate 305 is fixed to the top of the two rods 304.
[0034] Specifically, the top of the movable plate 2 is provided with multiple insertion holes 306 at equal intervals. The bottom end of the insertion rod 304 can be inserted into the insertion hole 306. By pushing and pulling the upper plate 305, the two insertion rods 304 are separated from the insertion hole 306. Then, the clamping plate 300 is pushed so that the dovetail block 307 slides in the dovetail groove 302. When the clamping plate 300 is in the correct position, the pull plate 305 is released. At this time, the spring will extend so that the insertion rod 304 is inserted into the corresponding insertion hole 306, thereby completing the fixation of the semi-circular clip 301.
[0035] The placement frame 1 is fixed to the hospital bed. Then, the leg requiring traction is placed on the movable plate 2, ensuring that the foot is positioned in front of the two semi-circular locking strips 301. Next, one clamp 300 is pushed so that the side of one semi-circular locking strip 301 is against the foot. The clamp 300 is then fixed in place by the positioning component. Then, the other clamp 300 is pushed so that the other semi-circular locking strip 301 engages with the foot. The motor 401 drives the threaded rod 400 to rotate, causing the movable plate 2 to move on the placement frame 1, thereby stretching and restricting the leg. Finally, conventional traction lead blocks are used for traction. This structural design allows the leg to be restricted before traction, preventing leg deformation. At the same time, the motor 401 can drive the movable plate 2 to move, allowing the movable plate 2 to stretch the leg, thus achieving the traction effect.
[0036] Example 2
[0037] This embodiment is a further optimization based on the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Figure 5 , Figure 6 and Figure 7 As shown, to further improve the present invention, the following configuration is adopted: In this embodiment, positioning strips are inserted and assembled on both sides of the placement frame 1 for fixing the patient's leg joints. The positioning strips include a first strip 5, and a second strip 6 is slidably inserted into the side of the first strip 5. The two positioning strips can also be pulled out of the placement frame 1 and the first strip 5 and the second strip 6 can be tied to the leg to further fix the leg and prevent the leg from moving during traction.
[0038] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0039] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0043] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An orthopedic electronic traction device, characterized in that, include: Placement box (1); The movable plate (2) is slidably set on top of the placement frame (1); The fixing mechanism (3) is set on the top of the movable plate (2) and is used to fix the patient's feet; The drive mechanism (4), located inside the placement frame (1), is used to drive the movable plate (2) to move on top of the placement frame (1). The drive mechanism (4) includes a threaded rod (400) that is rotatably mounted inside the placement frame (1). The bottom of the movable plate (2) is threadedly connected to the threaded rod (400) via a slider. The placement frame (1) is equipped with a motor (401) for driving the threaded rod (400) to rotate in both directions within the placement frame (1).
2. The orthopedic electronic traction device according to claim 1, characterized in that: The placement frame (1) has two slide rods (402) fixed inside, and the bottom of the movable plate (2) is slidably connected to the two slide rods (402) by a slider.
3. The orthopedic electronic traction device according to claim 1, characterized in that: The fixing mechanism (3) includes a pair of clamps (300) slidably disposed on the top of the movable plate (2), and the sides of the two clamps (300) are provided with positioning components for positioning and fixing the clamps (300) whose positions are adjusted. The opposite sides of the two clamps (300) are fixed with semi-arc-shaped clips (301).
4. The orthopedic electronic traction device according to claim 3, characterized in that: The top of the movable plate (2) is provided with a dovetail groove (302), and the clamping plate (300) is slidably connected in the dovetail groove (302) by a dovetail block (307).
5. The orthopedic electronic traction device according to claim 4, characterized in that: The positioning assembly includes a sleeve (303) fixed to the side of the clamping plate (300), a rod (304) is slidably inserted inside the sleeve (303), a washer is fixed to the middle of the rod (304), a spring is inserted through the middle of the rod (304) between the washer and the sleeve (303), the bottom end of the rod (304) can press against the top of the movable plate (2), a pull plate (305) is slidably connected to the side of the clamping plate (300), and the bottom of the pull plate (305) is fixed to the top of the two rods (304).
6. The orthopedic electronic traction device according to claim 5, characterized in that: The top of the movable plate (2) is provided with a plurality of equidistant insertion holes (306), and the bottom end of the insertion rod (304) can be inserted into the insertion holes (306).
7. The orthopedic electronic traction device according to claim 1, characterized in that: Positioning strips are inserted into both sides of the placement frame (1) for fixing the patient's leg joints.
8. The orthopedic electronic traction device according to claim 7, characterized in that: The positioning strip includes a first strip (5), and a second strip (6) is slidably inserted into the side of the first strip (5).