Traction device for lower limb fracture

Abstract

Provided is a traction device for lower limb fracture, which comprises: a supporting assembly (10), the supporting assembly (10) comprising a driving assembly (15); a vertical support (20), the vertical support (20) being connected to the supporting assembly (10); a traction assembly (30), the traction assembly (30) being sleeved on the vertical support (20); and a telescopic rod (40), one end of the telescopic rod (40) being connected to the supporting assembly (10), and the other end thereof being connected to the traction assembly (30). The traction device has the following advantages: enabling unified synchronous adjustment of the supporting assembly (10) and the traction assembly (30) and thereby allowing precise adjustment of the traction force, thus guaranteeing ideal alignment and positioning during reduction of fracture; satisfying individualized patient needs in the using process and preventing complications caused by long-time traction; and allowing height and angle to be adjustable, so that the device's applicability across populations is expanded, complications such as a local blood circulation disorder caused by extended use can be prevented, and meanwhile, the supporting effect and the patient comfort are also improved.

Description

Traction device for lower limb fractures Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a traction device for lower limb fractures. Background Art

[0002] Bone traction is a common method for treating fractures. Traction devices and weights are used to pull and reposition the fracture ends, particularly for lower limb fractures.

[0003] Traditional traction devices consist of a support structure and a traction mechanism. During use, because the support structure is fixed, the support angle of the lower limb cannot be adjusted, nor can the angle of the force line with the traction structure be dynamically and consistently adjusted. This results in poor traction and can even lead to problems such as fracture dislocation. Furthermore, prolonged bed rest can lead to circulatory problems, muscle atrophy, joint stiffness, and pressure sores.

[0004] At the same time, the traction structure of traditional traction devices is mostly a fixed-angle structure, and the angle of the traction force line or the direction of the traction force is difficult to adjust. In addition, the counterweight part of the traction structure is mostly a fixed weight unit, and the adjustable range often cannot meet the individual needs of patients.

[0005] Furthermore, due to differences in height and body shape among patients, traditional braces for supporting patients' limbs suffer from poor support effectiveness due to their non-adjustability. Prolonged use can lead to localized compression and poor blood circulation. Furthermore, they are not adaptable to patients of all body types. Furthermore, existing traction devices often result in poor patient comfort during support, failing to meet current clinical and patient needs.

[0006] Clearly, existing bone traction devices are not only difficult to adapt to clinical needs but are also prone to numerous complications. This invention effectively meets the requirements for fracture reduction with good alignment and position, while also preventing various complications associated with prolonged traction. Its integrated design and low cost make it highly suitable for widespread use and promotion.

[0007] Summary of the Invention

[0008] Based on this, the present invention provides a traction device for lower limb fractures. This device not only has the characteristics of adjustable support angle and traction force line angle, but also can achieve synchronous adjustment of the two, thereby ensuring the consistency and adjustability of the traction force line direction and support direction during treatment, improving the treatment effect and improving the patient experience. On this basis, by introducing a digital traction counterweight method, the traction force can be further precisely adjusted, while improving the treatment effect and reducing the occurrence of other adverse conditions such as strains; at the same time, it has the characteristics of adjustable height and angle, a wide range of applicability, and good support effect, which can solve the problems existing in the corresponding traction devices in the prior art.

[0009] To achieve the aforementioned objectives, the present invention adopts the following technical solutions:

[0010] In a first aspect, the present invention provides a traction device for lower limb fractures, comprising a support assembly, a vertical support, a traction assembly, and a telescopic frame; the support assembly includes a drive assembly; the vertical support is connected to the support assembly; the traction assembly is sleeved on the vertical support; and the telescopic frame is respectively connected to the support assembly and the traction assembly.

[0011] In a preferred embodiment, the drive assembly can be driven by an electric push rod, a screw nut drive, a pneumatic cylinder, an oil cylinder automatic drive, etc. Preferably, the drive assembly adopts an electric push rod structure, and the electric push rod is retractable.

[0012] In a preferred embodiment, the traction device for lower limb fractures of the present invention includes a support assembly, which includes a base, a first bracket hinged to the base, a second bracket hinged to the first bracket, and a third bracket hinged to the base and the second bracket; the base is also symmetrically provided with a connecting seat; the first bracket is hinged to one end of the base away from the connecting seat; and a storage hole is also provided at one end of the base.

[0013] In a preferred embodiment, the ends of the driving assembly are hinged to the base and the third bracket respectively. During use, the driving assembly is extended and retracted to drive the third bracket and the second bracket to achieve vertical height adjustment of the support structure.

[0014] In a preferred embodiment, the traction device of the present invention includes a traction assembly, which includes a plurality of support frame assemblies, guide shafts connected to opposite ends of the support frame assemblies, and pulley assemblies sleeved on the guide shafts.

[0015] Furthermore, sliders are respectively provided on the outer side walls on opposite sides of the support frame assembly; a hinge seat is provided on the slider, and the other end of the telescopic frame is hinged to the slider through the hinge seat.

[0016] Preferably, the pulley assembly includes a linear bearing and a pulley sleeved on the outside of the linear bearing; the linear bearing is sleeved on the outside of the guide shaft. When in use, the traction force line passes through the pulley assembly in sequence and is set in the groove of the pulley assembly.

[0017] In a preferred embodiment, the traction device of the present invention includes a telescopic frame, which is connected to the support assembly and the traction assembly. Preferably, one end of the telescopic frame is connected to the third bracket of the support assembly, and the other end of the telescopic frame is hingedly connected to the slider on the support frame via the aforementioned hinge seat.

[0018] More preferably, the third bracket is symmetrically provided with a plurality of connecting sleeves, one end of the telescopic bracket is sleeved inside the connecting sleeve. The telescopic bracket can telescope along the connecting sleeve, thereby driving the traction assembly to slide up and down along the vertical bracket to achieve height adjustment of the traction assembly.

[0019] In a preferred embodiment, the traction device of the present invention comprises a vertical bracket, which is inserted into the interior of the connecting seat.

[0020] Preferably, the base is provided with a receiving hole, in which the vertical bracket can be inserted when not in operation.

[0021] In a preferred embodiment, the slider on the support frame assembly is sleeved on the outside of the vertical bracket, and the slider can move in the vertical direction along the vertical bracket to achieve height adjustment of the traction assembly.

[0022] In a preferred embodiment, the traction device of the present invention further comprises a traction line and a counterweight assembly. One end of the traction line is connected to the traction bow, and the other end is connected to the counterweight assembly.

[0023] Preferably, the counterweight assembly is a digital counterweight assembly. A connecting hook is provided on the digital counterweight assembly, and the traction force line is connected to the digital counterweight assembly via the connecting hook. During use, the digital counterweight assembly enables precise variation of the traction force.

[0024] In a preferred embodiment, a first crossbeam is provided inside the base of the traction device of the present invention, and a second crossbeam is provided inside the second bracket; one end of the third bracket is hinged to the first crossbeam, and the other end of the third bracket is hinged to the second crossbeam, the base is parallel to the second bracket, the first bracket is parallel to the third bracket, and the first crossbeam, the first bracket, the second crossbeam and the third bracket form a parallelogram motion structure.

[0025] The traction device provided by the present invention is clinically used for postoperative traction treatment of lower limb fracture ends, such as thigh bone fractures, tibial fractures, and fibula fractures. The traction device of the present invention is not particularly limited in its applicability and can be used for adult patients, the elderly, and minor children.

[0026] In the second aspect, the present invention provides another traction device for lower limb fractures, comprising a bracket mechanism and a support mechanism; the bracket mechanism comprises a base, a first telescopic assembly and a support assembly hinged to the base; one end of the first telescopic assembly is hinged to the base, and the other end of the first telescopic assembly is hinged to the support assembly; the bracket mechanism is hinged to the bracket mechanism; the bracket mechanism comprises a first bracket, a second bracket, a connecting block and a first adjustment assembly passing through the first bracket and a second adjustment assembly passing through the second bracket; a first pipe is provided in the middle of the first bracket, and the first adjustment assembly passes through the first pipe; a second pipe is provided in the middle of the second bracket, and the second adjustment assembly passes through the second bracket through the second pipe; one end of the first adjustment assembly is hinged to one end of the connecting block, and one end of the second adjustment assembly is hinged to the other end of the connecting block.

[0027] In one embodiment, the other end of the first adjustment component is hinged to the base, and the other end of the second adjustment component is hinged to the support component.

[0028] In one embodiment, the first adjustment assembly and the second adjustment assembly each include a limiting pipe, a second telescopic assembly sleeved inside the limiting pipe, and a connecting disk assembly rotatably connected to both ends of the limiting pipe.

[0029] In one embodiment, the second telescopic assembly includes a driving rod and a driven rod connected to the driving rod.

[0030] In one embodiment, one end of the driving rod is fixed to the inside of the limiting pipe; and an adjusting head is provided on the driven rod.

[0031] In one embodiment, a first inclined waist-shaped hole is provided on the side wall of the first pipe and the side wall of the second pipe respectively.

[0032] In one embodiment, a second waist-shaped hole extending along the axial direction of the limiting pipe is provided on the side wall of the limiting pipe.

[0033] In one embodiment, after the adjusting head passes through the second waist-shaped hole, the adjusting head matches the first waist-shaped hole.

[0034] In one embodiment, the connecting disc assembly includes a connecting disc and a bearing sleeved inside the connecting disc; the bearings are sleeved at opposite ends of the limiting pipe.

[0035] In one embodiment, a plurality of identical first connection holes are respectively provided at opposite ends of the first pipe and opposite ends of the second pipe; a plurality of identical second connection holes are provided on the connection plate; and the second connection holes correspond to the first connection holes.

[0036] The traction device provided by the present invention is clinically used for lower limb injuries, such as femoral injury, patellar injury, tibia injury, fibula injury, etc. In addition, the bracket can be used by both adults and minors.

[0037] The traction device for lower limb fractures provided by the present invention has the following beneficial effects:

[0038] The technical solution adopted by the present invention utilizes a drive assembly to change the tilt angle of the support assembly, thereby adjusting the support direction of the support assembly and improving the support effect of the support assembly on the patient's lower limb. Furthermore, by incorporating a horizontally adjustable pulley into the support frame assembly, the consistency of the support direction and the traction force line direction is ensured, thus meeting the needs of clinical treatment, which is particularly important in clinical treatment.

[0039] On the other hand, the traction device of the present invention is provided with a telescopic frame, one end of which is connected to the third bracket, and the other end is hinged to the slider, thereby realizing synchronous adjustment of the inclination angle of the support component and the height of the traction component. A single adjustment can meet the needs of multiple angle changes, reducing the pain of the patient during the treatment process, improving the patient experience, and enhancing the treatment effect.

[0040] In another aspect, the traction device of the present invention utilizes a digital counterweight assembly. Compared to traditional fixed counterweights, this eliminates the need for multiple counterweights of varying weights, simplifying the overall design of the traction device. It also avoids the issue of traditional counterweights being unable to adjust their range to meet individual patient needs. The traction force can be precisely adjusted based on the patient's treatment and recovery status, improving treatment effectiveness.

[0041] On the other hand, in the technical solution adopted by the present invention, a first telescopic component is provided. By hingedly connecting the two ends of the first telescopic component to the base and the support component respectively, the movement of the first telescopic component can change the angle of the support component, thereby realizing the overall adjustable height of the bracket, and thus making the bracket widely applicable to patients of various heights and body shapes.

[0042] On the other hand, the movement of the first telescopic component can drive the first bracket to adjust the support angle of the patient's limbs, especially the thigh, and the second bracket to adjust the support angle of the patient's limbs, especially the calf, effectively improving the support effect of the patient during the use of the bracket, and preventing complications such as local poor blood circulation caused by long-term use.

[0043] In addition, the first bracket and the second bracket can be rotated around their own central axis under the action of the internal adjustment components, so that the first bracket and the second bracket can be adaptively adjusted according to the patient's body position, effectively improving the patient's comfort during use of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments of the present invention with reference to the accompanying drawings.

[0045] FIG1 is a perspective schematic diagram of a traction device according to an embodiment of the present invention;

[0046] FIG2 is a perspective schematic diagram of a third bracket in the traction device shown in FIG1 ;

[0047] FIG3 is a perspective schematic diagram of a traction assembly in the traction device shown in FIG1 ;

[0048] FIG4 is an enlarged schematic diagram of circle A shown in FIG3 ;

[0049] FIG5 is a perspective schematic diagram of the traction device shown in FIG1 from another perspective;

[0050] FIG6 is an enlarged schematic diagram of circle B shown in FIG5 ;

[0051] FIG7 is a side view of the traction device shown in FIG1;

[0052] FIG8 is a schematic diagram of a use scenario of a traction device according to an embodiment of the present invention;

[0053] FIG9 is a perspective schematic diagram of a traction device according to another embodiment of the present invention;

[0054] FIG10 is an enlarged schematic diagram of circle C shown in FIG9 ;

[0055] FIG11 is a perspective schematic diagram of the first bracket in the traction device shown in FIG9 ;

[0056] FIG12 is an enlarged schematic diagram of the circle D shown in FIG11 ;

[0057] FIG13 is a perspective schematic diagram of the first bracket in the traction device shown in FIG11 from another perspective;

[0058] FIG14 is an enlarged schematic diagram of circle E shown in FIG13 ;

[0059] FIG15 is a perspective schematic diagram of the first adjustment assembly in the traction device shown in FIG11;

[0060] FIG16 is a perspective schematic diagram of the connecting plate in the traction device shown in FIG15;

[0061] FIG17 is a perspective schematic diagram of the first adjustment assembly in the traction device shown in FIG15 from another perspective;

[0062] FIG18 is a perspective schematic diagram of the second telescopic assembly in the traction device shown in FIG17 .

[0063] Numbers and component names: 10-support assembly, 11-base, 111-first beam, 112-storage hole, 113-connecting seat, 12-first bracket, 13-second bracket, 131-second beam, 14-third bracket, 141-connecting sleeve, 15-drive assembly; 20-vertical bracket; 30-traction assembly, 31-support frame assembly, 32-guide shaft, 33-pulley assembly, 34-slider, 341-hinge seat, 35-linear bearing, 36-pulley; 40-telescopic frame; 50-counterweight assembly; A10-bracket mechanism, A11-base, A12-first telescopic assembly , A13-support assembly; A20-bracket mechanism, A21-first bracket, A211-first pipe, A212-first connecting hole, A213-first waist-shaped hole, A22-second bracket, A221-second pipe, A23-connecting block, A24-first adjusting assembly, A25-second adjusting assembly, A26-limiting pipe, A261-second waist-shaped hole, A27-second telescopic assembly, A271-driving rod, A272-driven rod, A273-adjusting head, A28-connecting plate assembly, A281-connecting plate, A282-bearing, A283-second connecting hole.

[0064] . DETAILED DESCRIPTION

[0065] The specific embodiments of the present invention are described below in conjunction with the accompanying drawings and examples. Through the contents of this specification, those skilled in the art can clearly and completely understand the technical solutions, technical problems solved, and technical effects produced by the present invention. It should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the present invention. In addition, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0066] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of the specification are only used to match the contents recorded in the specification for technical personnel in this field to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0067] References such as "first", "second", "the" and the like do not indicate a quantitative limitation and may indicate the singular or plural. The terms "include", "comprising", "having" and any variations thereof involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. Similar words such as "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0068] 1 to 8 , a traction device for lower limb fractures according to an embodiment of the present invention is shown, including a support assembly 10 , a vertical bracket 20 connected to the support assembly 10 , a traction assembly 30 sleeved on the vertical bracket 20 , a telescopic frame 40 connected to the support assembly 10 and the traction assembly 30 , and a counterweight assembly 50 .

[0069] The support assembly 10 includes a base 11, a first bracket 12, a second bracket 13, a third bracket 14, and a drive assembly 15. One end of the first bracket 12 is hinged to the base 11, and the other end is hinged to the second bracket 13. The other end of the second bracket 13 is free. The third bracket 14 is hinged to the base 11 and the second bracket 13 at both ends. The drive assembly 15 is hinged to the base 11 and the third bracket 14 at both ends.

[0070] The base 11 is a rectangular frame structure with a first crossbeam 111 disposed therein. In this embodiment, the first crossbeam 111 is in the form of a rectangular column. In other embodiments, the first crossbeam 111 can also be cylindrical, prismatic, or other shapes, as long as a hinge connection can be achieved. The material of the first crossbeam 111 is not limited, but must meet the mechanical strength requirements during use. For example, the first crossbeam 111 can be made of stainless steel, plastic steel, or aluminum-plastic. The first crossbeam 111 can be solid or hollow. To reduce the overall weight of the traction device, the base 11, including the first crossbeam 111, can be hollow.

[0071] A storage hole 112 is provided at one end of the base 11 away from the first bracket 12, and a connecting seat 113 is symmetrically provided on the base 11, and the connecting seat 113 is a hollow structure. In this embodiment, the connecting seat 113 is fixedly connected to the base 11. In other embodiments, the connecting seat 113 and the base 11 can also be movably connected. In the working state, the end of the vertical bracket 20 is inserted into the interior of the connecting seat 113, and the vertical bracket 20 and the connecting seat 113 are detachably connected. In the non-working state, the vertical bracket 20 can be taken out from the connecting seat 113 and inserted into the interior of the base 11 through the storage hole 112. Specifically, the insertion position of the vertical bracket 20 is determined according to the position of the storage hole 112. In this embodiment, the distance between the two storage holes 112 is less than the length of the first crossbeam 111 of the base 11. When the vertical bracket 20 is inserted into the storage hole 112, the vertical bracket 20 is located in the rectangular frame of the base 11.

[0072] In order to increase the stability of the vertical support 20, the vertical support 20 in this embodiment includes two columns and a crossbeam connected between the two columns. In other embodiments, the vertical support 20 may not include a crossbeam.

[0073] The slider 34 is sleeved on the two columns of the vertical bracket 20 to support the support frame assembly 31 .

[0074] In this embodiment, the drive assembly 15 is an electric push rod. In other embodiments, the drive assembly 15 may also be driven by a screw and nut, a pneumatic cylinder, or an oil cylinder, as long as the drive assembly 15 can be extended or retracted. One end of the drive assembly 15 is hinged to the end of the base 11 near the connecting seat 113, and the other end is hinged to the third bracket 14. When the drive assembly 15 retracts and retracts, it drives the third bracket 14.

[0075] The first bracket 12 is hingedly connected to the base 11 at one end away from the connecting seat 113. The other end of the first bracket 12 is hingedly connected to the second bracket 13. In this embodiment, the first bracket 12 has a rectangular frame structure. In other embodiments, the first bracket 12 can also have a frame structure of other shapes, such as diamond, circle, ellipse, or irregular shape. In addition to a frame structure, the first bracket 12 can also have a non-frame planar structure.

[0076] The second bracket 13 is a rectangular frame structure, and a second crossbeam 131 is provided inside the second bracket 13. One end of the second bracket 13 is hinged to the first bracket 12, and the other end is a free end.

[0077] The base is parallel to the second bracket, and the first bracket is parallel to the third bracket. One end of the third bracket 14 is hinged to the first crossbeam 111, and the other end is hinged to the second crossbeam 131. The first crossbeam, the first bracket, the second crossbeam, and the third bracket form a parallelogram kinematic structure. This parallelogram kinematic structure can move with the movement of the drive assembly 15, so that the first bracket 12 and the second bracket 13 can support the patient's limb, enhance the fit between the patient's limb and the support assembly 10, and effectively improve the support effect.

[0078] The third bracket 14 is symmetrically provided with multiple connecting sleeves 141. One end of a telescopic bracket 40 is sleeved within the connecting sleeve 141, and the other end is hingedly connected to the slider 34. The telescopic bracket 40 can telescope along the connecting sleeve 141, thereby driving the slider 34 to slide up and down along the vertical bracket 20, thereby adjusting the height of the traction assembly 30.

[0079] The traction assembly 30 includes multiple support frame assemblies 31, guide shafts 32 connected to both ends of the support frame assemblies 31, and pulley assemblies 33 mounted on the guide shafts 32. In this embodiment, there are four support frame assemblies 31, with two support frame assemblies 31 positioned opposite each other. The ends of the guide shafts 32 facing away from the slider 34 are connected to the guide shafts 32, and the pulley assemblies 33 are mounted on the guide shafts 32. With the vertical support 20 as the center, the guide shafts 32 are symmetrically arranged on both sides of the vertical support 20.

[0080] Sliders 34 are provided on the outer walls of opposite sides of the support frame assembly 31. Sliders 34 are mounted on the exterior of the vertical support 20 and are capable of sliding freely in the vertical direction along the vertical support 20. Sliders 34 are also provided with hinged seats 341, which are hingedly connected to the telescopic frame 40. In this embodiment, the sliders 34 move up and down along the vertical support 20 under the interaction between the drive assembly 15, the third support 14, and the telescopic frame 40, thereby achieving automatic height adjustment of the traction assembly 30 and improving the accuracy of the height adjustment process.

[0081] The pulley assembly 33 includes a linear bearing 35 and a pulley 36 mounted on the outside of the linear bearing 35; the linear bearing 35 is mounted on the outside of the guide shaft 32 to enable the pulley 36 to slide freely along the axis of the guide shaft 32. In this embodiment, the pulley 36 can slide freely along the axis of the guide shaft 32 under the action of the linear bearing 35. Therefore, when the traction line is mounted on the pulley 36, the pulley 36, the linear bearing 35 and the guide shaft 32 cooperate with each other to achieve adaptive adjustment of the traction line in the lateral direction, which helps to keep the direction of action of the traction line consistent with the treatment purpose or demand. In addition, with the lateral adjustability of the traction line, the support direction of the support assembly 10 can be further kept consistent with the direction of action of the traction force, further improving the treatment effect.

[0082] The counterweight assembly 50 in this embodiment is a digital counterweight assembly. In this embodiment, the counterweight assembly 50 can be fixed to the ground or a bed frame, or it can be a pulling device with a built-in motor. The counterweight assembly 50 is provided with a connecting hook (not shown in the figure), and the traction line is connected to the counterweight assembly 50 through the connecting hook. During use, the traction force on the patient's fracture end can be adjusted by adjusting the counterweight assembly 50. Compared with the traditional method of adjusting the traction force by stacking fixed-weight counterweight blocks or weights, the counterweight assembly 50 has high adjustment accuracy and can accurately adjust the traction force as the treatment situation changes, avoiding the occurrence of strains and the like, while improving the treatment effect.

[0083] Working Principle: To use the traction device of the present invention, first remove the vertical support 20 from the storage hole 112. Insert the two uprights of the vertical support 20 through the sliders 34, slidably connecting the support frame assembly 31 to the vertical support 20. A traction line is placed inside the upper groove of the pulley 36, and the drive assembly 15 is connected to the control switch. By manually pressing the control switch, the drive assembly 15 moves, and the third support 14 connected thereto sequentially drives the second support 13 and the telescopic frame 40, thereby achieving synchronous adjustment of the support assembly 10 and the traction assembly 30. Specifically, the first, second, and third supports 12, 13, and 14 are tilted to a certain angle, while the support frame assembly 31 is raised to a certain height. The first support 12 now supports the patient's limb, particularly the thigh, while the second support 13 supports the patient's limb, particularly the calf. The traction bow connected to the fracture site of the patient's leg is connected to one end of the traction line. Based on the actual treatment needs, the control switch is manually pressed again to fine-tune the support assembly 10 and the traction assembly 30. At the same time, the lateral position of the pulley 36 is adjusted, and the electronic counterweight assembly is connected to the other end of the traction force line. Through the external control component, the electronic counterweight assembly is adjusted until it meets the patient's needs.

[0084] The traction device of the present invention not only achieves the consistency between the supporting direction of the supporting structure and the direction of action of the traction force line, but also realizes the synchronous adjustment of the two. In addition, the electronic counterweight component can accurately adjust the size of the traction force, which comprehensively improves the therapeutic effect of postoperative treatment of patients with lower limb fractures.

[0085] 9 to 18 , another embodiment of the present invention shows a traction device for repairing and treating lower limb injuries, including a support mechanism A10 and a bracket mechanism A20 hinged to the support mechanism A10.

[0086] Bracket mechanism A10 includes a base A11, a first telescopic assembly A12, and a support assembly A13 hinged to base A11. One end of first telescopic assembly A12 is hinged to base A11, and the other end is hinged to support assembly A13. In this embodiment, support assembly A13 is hinged to base A11 via a hinged seat. One end of first telescopic assembly A12 is also hinged to base A11 and support assembly A13 via hinged seats, respectively. This allows support assembly A13 to move around the hinged portion under the support of first telescopic assembly A12. This enables bracket mechanism A20 to adjust the support angle driven by support assembly A13. Overall, the height of the bracket can be adjusted to accommodate patients of different heights and body shapes, effectively expanding the range of people who can use the bracket.

[0087] The bracket mechanism A20 includes a first bracket A21, a second bracket A22, a connecting block A23, a first adjusting component A24 passing through the first bracket A21, and a second adjusting component A25 passing through the second bracket A22; a first pipe A211 is provided in the middle of the first bracket A21, and the first adjusting component A24 passes through the first bracket A21 through the first pipe A211; a plurality of identical first connecting holes A212 are respectively provided at the opposite ends of the first pipe A211, and an inclined first waist-shaped hole A213 is also provided on the side wall of the first pipe A211; one end of the first adjusting component A24 is hinged to the base A11, and the other end thereof is hinged to one end of the connecting block A23. A second pipe A221 is provided in the middle of the second bracket A22, and the second adjustment component A25 passes through the second bracket A22 through the second pipe A221; the opposite ends of the second pipe A221 are also provided with multiple identical first connecting holes A212, and the side wall of the second pipe A221 is also provided with an inclined first waist-shaped hole A213; one end of the second adjustment component A25 is hinged to the support component A13, and the other end thereof is also hinged to the other end of the connecting block A23. In this embodiment, a plurality of identical first connecting holes A212 are respectively provided at the opposite ends of the first pipe A211 and the second pipe A221, and the first adjusting component A24 is passed through the interior of the first pipe A211 and the second adjusting component A25 is passed through the interior of the second pipe A221. At the same time, the first connecting hole A212 corresponds to the second connecting hole A283, and pins are passed through the first connecting hole A212 and the second connecting hole A283 in sequence to fix the first adjusting component A24 and the second adjusting component A25 respectively, thereby realizing that the first adjusting component A24 is fixed to the interior of the first bracket A21 and the second adjusting component A25 is fixed to the interior of the second bracket A22.

[0088] Each of the first and second adjustment assemblies A24 and A25 includes a stopper tube A26, a second telescopic assembly A27 sleeved within the stopper tube A26, and a connecting plate assembly A28 rotatably connected to both ends of the stopper tube A26. The sidewall of the stopper tube A26 is provided with a second waist-shaped hole A261 extending along its axis. The second telescopic assembly A27 includes a driving rod A271 and a driven rod A272 connected to the driving rod A271. One end of the driving rod A271 is fixed within the stopper tube A26, and the driven rod A272 is provided with an adjustment head A273. After the adjustment head A273 passes through the second waist-shaped hole A261, it mates with the first waist-shaped hole A213. The connecting disk assembly A28 includes a connecting disk A281 and a bearing A282 sleeved inside the connecting disk A281; a plurality of identical second connecting holes A283 are provided on the connecting disk A281; the second connecting holes A283 correspond to the first connecting holes A212, specifically, the first connecting holes A212 correspond to the second connecting holes A283, and are connected by pins; the bearing A282 is sleeved on the opposite ends of the limiting pipe A26.

[0089] In this embodiment, a first through hole and a second through hole are respectively provided on opposite sides of the side wall of the limiting pipe A26, and a third through hole is provided at one end of the driving rod A271. The third through hole corresponds to the first through hole and the second through hole respectively, and is sequentially penetrated by a pin through the first through hole, the third through hole and the second through hole, so that the driving rod A271 is fixed to the inside of the limiting pipe A26, thereby realizing that the second telescopic component A27 is fixed to the inside of the limiting pipe A26; at the same time, the driven rod A272 is connected to the driving rod A271, so that the driving rod A271 can drive the driven rod A272 to perform telescopic linear motion inside the limiting pipe A26; in addition, the adjusting head A273 on the driven rod A272 sequentially penetrates the second waist-shaped hole A261 and the first waist-shaped hole A213, and the connecting plate A281 is sleeved on the bearing A282, and the bearing A282 is sleeved on the end portions at the opposite ends of the limiting pipe A26. At the same time, the connecting plate A281 is respectively fixed It is fixed at the opposite ends of the first bracket A21 and the opposite ends of the second bracket A22 to enable the adjusting head A273 to move inside the second waist-shaped hole A261, and through the mutual cooperation between the first waist-shaped hole A213 and the adjusting head A273, the first bracket A21 and the second bracket A22 are driven to rotate, thereby realizing the first bracket A21 and the second bracket A22 to rotate and adjust around their respective central axis directions according to the patient's comfort requirements, effectively improving the patient's comfort during use, reducing the patient's pain, and avoiding the patient's discomfort caused by long-term fixed posture and the situation of pressure sores in the patient.

[0090] Working principle: When in use, first fix the bracket to the bed with a fixing rope or a fixing belt according to the patient's height and body shape, and connect the first telescopic component A12 and the second telescopic component A27 to an external power supply; then, manually press the control switch to adjust the extension length of the first telescopic component A12, so that an upward convex shape is formed between the first bracket A21 and the second bracket A22, and the patient's limbs, especially the thighs, are supported by the first bracket A21, and the patient's limbs, especially the calves, are supported by the second bracket A22. According to the needs of the patient, the first telescopic component A12 can be adjusted again by pressing the control switch, so that the support angle of the first bracket A21 for the thigh and the support angle of the second bracket A22 for the calf can be adjusted accordingly until they are adjusted to the appropriate position; finally, the patient's thigh is constrained to the first bracket A21 and the calf is constrained to the second bracket A22 through the restraint belt, and according to the patient's needs, the extension length of the second telescopic component A27 is adjusted by pressing the control switch, so that the first bracket A21 and the second bracket A22 are rotated and adjusted separately, thereby realizing the adjustment of the support angles of the thigh and calf according to the patient's needs, and being able to rotate and adjust the first bracket A21 and the second bracket A22 according to the patient's body position requirements, effectively improving the applicability of the bracket to patients of different heights and body shapes, while increasing the comfort of the patient during use.

[0091] Although the present invention has been described and illustrated with reference to specific embodiments of the present invention, these descriptions and illustrations are not intended to limit the present invention. It will be clearly understood by those skilled in the art that various changes may be made and equivalent elements may be substituted within the embodiments without departing from the scope of protection of the present invention as defined by the claims. Due to variables in the manufacturing process, etc., there may be differences between the technical reproduction of the present invention and the actual device. There may be other embodiments of the present invention that are not specifically described. The description and illustrations should be regarded as illustrative, not restrictive, and modifications may be made according to the purpose and spirit of the present invention, all of which are within the scope of protection of the claims. Although the methods disclosed herein have been described with reference to specific operations performed in a specific order, it should be understood that these operations can be recombined, subdivided or arranged to form equivalent methods without departing from the teachings of the present invention. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit the present invention.

Claims

1. A traction device for lower limb fractures, characterized in that, Comprising: a support assembly, the support assembly including a drive assembly; a vertical bracket, the vertical bracket being connected to the support assembly; a traction assembly, the traction assembly being sleeved on the vertical bracket; a telescopic frame, one end of the telescopic frame being connected to the support assembly and the other end being connected to the traction assembly.

2. The traction device according to claim 1, characterized in that, The traction device further includes a traction line and a counterweight assembly; the counterweight assembly is a digital counterweight assembly.

3. The traction device according to claim 1, characterized in that, The support assembly further includes a base, a first bracket hinged to the base, a second bracket hinged to the first bracket, and a third bracket hinged to the base and the second bracket; connection seats are symmetrically provided on the base; the first bracket is hinged to one end of the base away from the connection seats; a storage hole is further provided at one end of the base away from the first bracket.

4. The traction device according to claim 3, characterized in that, Both ends of the drive assembly are respectively hinged to the base and the third bracket; the drive assembly is in the form of an electric push rod.

5. The traction device according to claim 4, characterized in that, The traction assembly includes a plurality of support frame assemblies, guide shafts connected to opposite ends of the support frame assemblies, and pulley assemblies sleeved on the guide shafts.

6. The traction device according to claim 5, characterized in that, Sliders are respectively provided on the outer side walls of opposite sides of the support frame assembly; the sliders are sleeved on the outside of the vertical bracket, hinge seats are provided on the sliders, and the other end of the telescopic frame is hinged to the sliders through the hinge seats.

7. The traction device according to claim 6, characterized in that, The pulley assembly includes a linear bearing and a pulley sleeved on the outside of the linear bearing; the linear bearing is sleeved on the outside of the guide shaft.

8. The traction device according to any one of claims 3 or 4 or 7, characterized in that, A plurality of connection sleeves are symmetrically provided on the third bracket, and one end of the telescopic frame is sleeved inside the connection sleeves.

9. The traction device according to claim 8, characterized in that, The vertical bracket is inserted inside the connection seat.

10. The traction device according to claim 3, characterized in that, A first cross beam is provided inside the base, and a second cross beam is provided inside the second bracket; one end of the third bracket is hinged to the first cross beam, and the other end of the third bracket is hinged to the second cross beam; the base is parallel to the second bracket, and the first bracket is parallel to the third bracket; a parallelogram motion structure is enclosed among the first cross beam, the first bracket, the second cross beam, and the third bracket.

11. A traction device for lower limb fractures, characterized in that, Comprising: a bracket mechanism; the bracket mechanism includes a base, a first telescopic assembly, and a support assembly hinged to the base; one end of the first telescopic assembly is hinged to the base, and the other end of the first telescopic assembly is hinged to the support assembly; and a bracket mechanism, the bracket mechanism being hinged to the bracket mechanism; the bracket mechanism includes a first bracket, a second bracket, a connecting block, a first adjusting assembly passing through the first bracket, and a second adjusting assembly passing through the second bracket; a first pipe is provided in the middle of the first bracket, and the first adjusting assembly passes through the first bracket through the first pipe; a second pipe is provided in the middle of the second bracket, and the second adjusting assembly passes through the second bracket through the second pipe; one end of the first adjusting assembly is hinged to one end of the connecting block, and one end of the second adjusting assembly is hinged to the other end of the connecting block.

12. The traction device according to claim 11, characterized in that, The other end of the first adjusting assembly is hinged to the base, and the other end of the second adjusting assembly is hinged to the support assembly.

13. The traction device according to claim 11, characterized in that, Both the first adjustment component and the second adjustment component include a limiting pipe, a second telescopic component sleeved inside the limiting pipe, and a connecting disk component rotatably connected to both ends of the limiting pipe.

14. The traction device according to claim 13, characterized in that, The second telescopic component includes a driving rod and a driven rod connected to the driving rod.

15. The traction device according to claim 14, characterized in that, One end of the driving rod is fixed inside the limiting pipe; an adjustment head is provided on the driven rod.

16. The traction device according to claim 15, characterized in that, Inclined first kidney-shaped holes are respectively provided on the side wall of the first pipe and the side wall of the second pipe.

17. The traction device according to claim 16, characterized in that, A second kidney-shaped hole extending along the axial direction of the limiting pipe is provided on the side wall of the limiting pipe.

18. The traction device according to claim 17, characterized in that, After the adjustment head penetrates through the second kidney-shaped hole, the adjustment head cooperates with the first kidney-shaped hole.

19. The traction device according to claim 13, characterized in that,The connecting disk component includes a connecting disk and a bearing sleeved inside the connecting disk; the bearing is sleeved on opposite ends of the limiting pipe.

20. The traction device according to claim 19, characterized in that, A plurality of identical first connection holes are respectively provided at opposite ends of the first pipe and opposite ends of the second pipe; a plurality of identical second connection holes are provided on the connecting disk; the second connection holes correspond to the first connection holes.

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