Adjustable traction support for bone tumor operation

Abstract

The utility model discloses an adjustable traction support for bone tumor surgery, which comprises a concentric-square-shaped support plate, two box-shaped moving seats are arranged above the concentric-square-shaped support plate, the top of each box-shaped moving seat is fixedly connected with an arc-shaped support plate for supporting legs of a patient, and an arc-shaped flexible rubber mat is fixedly adhered to the inner side of each arc-shaped support plate; a two-way thread driving assembly used for driving the two box-shaped moving seats to move relatively is installed in the concentric-square-shaped supporting plate. By arranging a series of structures, the supporting lengths of the two arc-shaped supporting plates can be adjusted according to the lengths of the legs of different patients, the effect of flexibly adjusting the supporting height and inclination of the legs of the patients according to the use requirements is facilitated, and the use flexibility and applicability are improved; in addition, dripped liquid can be conveniently collected and discharged outwards in the bone tumor operation work, the phenomenon that serious pollution is caused due to the fact that a large amount of dripped liquid in the bone tumor operation directly and infinitely flows out is reduced, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically an adjustable traction stent for bone tumor surgery. Background Technology

[0002] Bone tumors are tumors that occur in the bones or their surrounding tissues. They can be benign or malignant. Benign bone tumors are easily cured and have a good prognosis, while malignant bone tumors develop rapidly, have a poor prognosis, and a high mortality rate. Malignant bone tumors are divided into primary and secondary types. Secondary malignant bone tumors are those that metastasize to the bones from other tissues or organs through the bloodstream and lymphatic system. There is also a type of lesion called tumor-like lesions. Tumor-like lesions do not have the morphological characteristics of tumor cells, but their ecology and behavior are destructive like tumors. They are generally more localized and easier to cure. Before performing surgery on the leg, in order to ensure the quality of the surgery, it is necessary to support and fix the patient's leg with a traction frame. However, existing traction frames are not easy to adjust according to the length of the patient's leg, which is not only uncomfortable but also cumbersome to operate.

[0003] According to a search report from a novelty search agency, announcement number CN215536161U discloses a 3D-printed adjustable traction bracket for bone tumor surgery, including a fixation plate. A first vertical plate is fixedly installed on the top of the fixation plate, and a first support plate is welded to the top of the first vertical plate. A rotating plate is hinged to the right side of the first support plate. Several limiting holes are opened on the left side of the surface of the fixation plate, and a movable groove is provided behind the limiting holes. A movable block is slidably connected inside the movable groove. A second vertical plate is welded to the top of the movable block, and a second support plate is welded to the top of the second vertical plate. This bracket has the advantages of being easily adjustable according to the patient's leg length, which is not only simple to operate but also improves patient comfort. It solves the problem that existing traction brackets are not easy to adjust according to the patient's leg length, resulting in poor comfort and cumbersome operation.

[0004] The aforementioned technology discloses a 3D-printed adjustable traction bracket for bone tumor surgery. This bracket allows for easy adjustment of the support length based on the leg length of different patients through the adjustable spacing between two arc-shaped plates. However, it has the following shortcomings in practical use:

[0005] 1. The support height and inclination cannot be flexibly adjusted according to usage needs, resulting in unsatisfactory applicability and flexibility; 2. It lacks a structure for collecting and draining dripping fluid during bone tumor surgery, which can easily lead to large-scale and uncontrolled outflow of dripping fluid, causing serious pollution. In view of this, this application proposes an adjustable traction stent for bone tumor surgery to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable traction stent for bone tumor surgery to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable traction bracket for bone tumor surgery, comprising a U-shaped support plate, two box-shaped movable seats are provided above the U-shaped support plate, an arc-shaped support plate for supporting the patient's legs is fixedly connected to the top of the box-shaped movable seats, and an arc-shaped flexible rubber pad is bonded and fixed to the inner side of the arc-shaped support plate.

[0008] The spiral support plate is equipped with a bidirectional threaded drive assembly for driving the two box-shaped moving seats to move relative to each other; the bidirectional threaded drive assembly is used to drive the two box-shaped moving seats to move repulsively or nearly close to each other, so as to drive the two arc-shaped support plates to adjust the support length by repulsively or nearly close to each other, thereby facilitating the support of patients with different leg lengths in bone tumor surgery.

[0009] The top of the U-shaped support plate is fixedly connected to a liquid collection and drainage assembly for collecting dripping fluid during surgery. Both box-shaped movable seats are slidably sleeved on the liquid collection and drainage assembly. The liquid collection and drainage assembly is used to collect dripping fluid and drain it outward during bone tumor surgery.

[0010] The bottom of the spiral support plate is equipped with a lifting and tilting adjustment component for raising, lowering and adjusting the angle; the lifting and tilting adjustment component is used to adjust the height and tilt of the spiral support plate, so as to flexibly adjust the height and tilt of the support for the patient's legs according to the needs of use.

[0011] Preferably, the bidirectional threaded drive assembly includes two symmetrically arranged L-shaped moving plates. The top of the L-shaped moving plates is fixedly connected to the bottom of the corresponding box-shaped moving base. Rectangular holes are provided on the inner walls of both sides of the U-shaped support plate. The L-shaped moving plates are slidably fitted into the corresponding rectangular holes. Screws are rotatably installed in the rectangular holes. The near ends of the two screws extend into the U-shaped support plate and are fixedly connected to the same knob. The bottom of the knob extends to the bottom of the U-shaped support plate. The threads of the two screws are in opposite directions. The two L-shaped moving plates are respectively threaded onto the corresponding screws.

[0012] Preferably, the liquid collection and drainage assembly includes a U-shaped support fixedly connected to the top of the U-shaped support plate, a liquid collection box fixedly connected to the top of the U-shaped support plate, two box-shaped movable seats slidably sleeved on the liquid collection box, an L-shaped tube fixedly connected to the bottom of the liquid collection box, the L-shaped tube being located behind the right screw, the bottom of the L-shaped tube penetrating the inner side of the U-shaped support plate and extending below it, and a flexible hose fixedly connected to the right end of the L-shaped tube.

[0013] Preferably, the lifting and tilting adjustment assembly includes a base plate disposed below the U-shaped support plate. Electric telescopic rods are embedded and fixed on both sides of the top of the base plate. The protruding end of the electric telescopic rod on the right side is hinged to the bottom right side of the U-shaped support plate. A slider is slidably installed on the bottom left side of the U-shaped support plate. The bottom of the slider is hinged to the protruding end of the electric telescopic rod on the left side.

[0014] Preferably, threaded grooves are provided on the adjacent sides of the two L-shaped movable plates, and the screw thread is sleeved in the corresponding threaded groove.

[0015] Preferably, a T-shaped guide rail is fixedly connected to the bottom left side of the U-shaped support plate, and a T-shaped groove is provided on the top of the slider to slide in connection with the T-shaped guide rail.

[0016] Preferably, a battery electrically connected to the two electric telescopic poles is embedded and fixed at the top of the base plate, and two control switches electrically connected to the corresponding electric telescopic poles are fixedly connected to the top left side of the base plate.

[0017] Preferably, the bottom of the box-shaped movable seat has two supporting balls that are movably in contact with the top of the U-shaped support plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By combining the set spiral support plate, box-shaped moving seat, arc support plate and bidirectional thread drive assembly, the support length of the two arc support plates can be adjusted according to the leg length of different patients, so as to facilitate the support work for patients with different leg lengths in bone tumor surgery.

[0020] 2. By combining the lifting and tilting adjustment components with the spiral support plate, the height and tilt of the two arc-shaped support plates can be adjusted. This allows for flexible adjustment of the height and tilt of the support for the patient's legs according to usage needs, improving the flexibility and applicability of use.

[0021] 3. Through the combination of the liquid collection and drainage component and the box-shaped moving seat, the dripping liquid can be collected and drained outward during bone tumor surgery, reducing the serious pollution caused by the direct and uncontrolled outflow of large amounts of dripping liquid during bone tumor surgery, and improving the effectiveness of use.

[0022] This invention features a series of structures that allow for adjustment of the length of the two arc-shaped support plates according to the leg length of different patients. This facilitates flexible adjustment of the support height and inclination for the patient's leg based on usage needs, improving its flexibility and applicability. Furthermore, it facilitates the collection and drainage of dripping fluid during bone tumor surgery, reducing the risk of serious contamination caused by large, uncontrolled outflow of dripping fluid during bone tumor surgery, and improving the overall effectiveness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an adjustable traction stent for bone tumor surgery proposed in this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below;

[0025] Figure 3 This is a schematic diagram of the main sectional view of an adjustable traction stent for bone tumor surgery proposed in this utility model.

[0026] In the diagram: 1. U-shaped support plate; 2. Arc-shaped support plate; 201. Arc-shaped flexible rubber pad; 3. Box-shaped movable seat; 301. Supporting ball; 4. Liquid collection box; 401. U-shaped support; 402. L-shaped tube; 403. Flexible hose; 5. L-shaped movable plate; 501. Screw; 502. Knob; 6. Base plate; 601. T-shaped guide rail; 602. Slider; 603. Electric telescopic rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 3 As shown in the figure, the adjustable traction bracket for bone tumor surgery proposed in this embodiment includes a U-shaped support plate 1. Two box-shaped movable seats 3 are arranged above the U-shaped support plate 1. An arc-shaped support plate 2 for supporting the patient's leg is fixedly connected to the top of the box-shaped movable seats 3. An arc-shaped flexible rubber pad 201 is bonded and fixed to the inner side of the arc-shaped support plate 2. Two support balls 301 are movably nested at the bottom of the box-shaped movable seats 3, both of which are in movable contact with the top of the U-shaped support plate 1, so as to provide movable support for the box-shaped movable seats 3.

[0029] The U-shaped support plate 1 is equipped with a bidirectional threaded drive assembly for driving the two box-shaped moving seats 3 to move relative to each other; the bidirectional threaded drive assembly is used to drive the two box-shaped moving seats 3 to move repulsively or nearly close to each other, so as to drive the two arc-shaped support plates 2 to move repulsively or nearly close to each other to adjust the support length, thereby facilitating the application of support for patients with different leg lengths in bone tumor surgery.

[0030] The top of the U-shaped support plate 1 is fixedly connected to a liquid collection and drainage assembly for collecting dripping fluid during surgery. Both box-shaped movable seats 3 are slidably sleeved on the liquid collection and drainage assembly. The liquid collection and drainage assembly is used to collect dripping fluid and drain it outward during bone tumor surgery.

[0031] The bottom of the U-shaped support plate 1 is equipped with a lifting and tilting adjustment component for raising and lowering and adjusting the angle; the lifting and tilting adjustment component is used to adjust the height and tilt of the U-shaped support plate 1, so as to flexibly adjust the height and tilt of the support for the patient's legs according to the needs of use.

[0032] Specifically, the bidirectional threaded drive assembly includes two symmetrically arranged L-shaped moving plates 5. The top of the L-shaped moving plates 5 is fixedly connected to the bottom of the corresponding box-shaped moving base 3. Rectangular holes are opened on both inner walls of the U-shaped support plate 1. The L-shaped moving plates 5 are slidably fitted into the corresponding rectangular holes. A screw 501 is rotatably installed in the rectangular holes. A bearing is fixedly connected between the top and bottom inner walls of the rectangular holes. The inner side of the inner ring of the bearing is fixedly connected to the outer side of the corresponding screw 501, which serves to rotatably install the screw 501. The near ends of the two screws 501 extend into the U-shaped support plate 1 and are fixedly connected to the same knob 502. The bottom of the knob 502 extends to the bottom of the U-shaped support plate 1. The threads of the two screws 501 are opposite in direction. The two L-shaped moving plates 5 are respectively threaded onto the corresponding screws 501. Each L-shaped movable plate 5 has a threaded groove on one side of its closest point. The screw 501 is threaded into the corresponding threaded groove. By utilizing the threaded connection between the screw 501 and the threaded groove, and by using the opposite direction of the threads of the two screws 501, the two L-shaped movable plates 5 can be driven to move in opposite or similar directions when the two screws 501 rotate. The L-shaped movable plates 5, rectangular holes, screws 501, and knobs 502 work together. Rotating the knobs 502 drives the two screws 501 to rotate. The rotation of the two screws 501 causes the two L-shaped movable plates 5 to move in opposite or similar directions. The two L-shaped movable plates 5, through the two box-shaped movable seats 3, drive the two arc-shaped support plates 2 to move in opposite or similar directions, thereby adjusting the support length of the two arc-shaped support plates 2. This facilitates support for patients with different leg lengths during bone tumor surgery.

[0033] Furthermore, the fluid collection and drainage assembly includes a U-shaped support 401 fixedly connected to the top of the U-shaped support plate 1. A fluid collection box 4 is fixedly connected to the top of the U-shaped support 401. Two box-shaped movable seats 3 are slidably sleeved on the fluid collection box 4. An L-shaped tube 402 is fixedly connected to the bottom of the fluid collection box 4. The L-shaped tube 402 is located behind the right screw 501. The bottom of the L-shaped tube 402 penetrates the inner side of the U-shaped support plate 1 and extends below it. A flexible tube 403 is fixedly connected to the right end of the L-shaped tube 402. The U-shaped support 401, fluid collection box 4, L-shaped tube 402 and flexible tube 403 work together to place one end of the flexible tube 403 at the position where fluid needs to be drained. During the operation, the fluid collection box 4 is used to collect the downward dripping fluid. The collected fluid flows into the flexible tube 403 through the L-shaped tube 402 and is then drained outward through one end of the flexible tube 403, thus achieving the effect of collecting and draining the dripping fluid during bone tumor surgery.

[0034] Furthermore, the lifting and tilting adjustment assembly includes a base plate 6 located below the U-shaped support plate 1. Electric telescopic rods 603 are embedded and fixed on both sides of the top of the base plate 6. The protruding end of the right-side electric telescopic rod 603 is hinged to the bottom right side of the U-shaped support plate 1. A slider 602 is slidably mounted on the bottom left side of the U-shaped support plate 1. A T-shaped guide rail 601 is fixedly connected to the bottom left side of the U-shaped support plate 1. A T-shaped groove is formed on the top of the slider 602, which slidably connects to the T-shaped guide rail 601. The bottom of the slider 602 is hinged to the protruding end of the left-side electric telescopic rod 603. A battery electrically connected to the two electric telescopic rods 603 is embedded and fixed on the top of the base plate 6. Two control switches, each electrically connected to a corresponding electric telescopic rod 603, are fixedly connected to the top left side of the base plate 6. The electric telescopic rods 603, sliders 602, and base plate 6 work together... By simultaneously activating two electric telescopic rods 603, the U-shaped support plate 1 is raised or subsequently lowered, achieving its lifting and lowering adjustment. By individually activating the left electric telescopic rod 603, the slider 602 is moved upward. The slider 602 slides on the bottom left side of the U-shaped support plate 1 and rotates its left side upward, achieving the tilt adjustment of the U-shaped support plate 1. The lifting and tilting of the U-shaped support plate 1 drives the upper arc-shaped support plate 2 to be raised, lowered, or tilted, achieving the effect of flexibly adjusting the height and inclination of the patient's leg support according to the needs of use, improving the flexibility and applicability of use. The slider 602 is slidably installed on the bottom left side of the U-shaped support plate 1 through the T-shaped guide rail 601, which allows the slider 602 to tilt and slide at the bottom of the U-shaped support plate 1, so as to accommodate the change of connection point when the tilt of the U-shaped support plate 1 changes.

[0035] The method of use in this embodiment is as follows: During bone tumor surgery, two arc-shaped support plates 2 are used to support the patient's leg to be operated on. When it is necessary to adjust the support length formed by the two arc-shaped support plates 2 according to the length of the patient's leg, the knob 502 is rotated in the forward direction to drive the two screws 501 to rotate. Since the threads of the two screws 501 are turned in opposite directions, when the two screws 501 rotate, they drive the two L-shaped moving plates 5 to slide against each other in the two rectangular holes. The two L-shaped moving plates 5 drive the two box-shaped moving seats 3 to move against each other. The two box-shaped moving seats 3 drive the two arc-shaped support plates 2 to move against each other, thereby changing the distance between the two arc-shaped support plates 2 and achieving the effect of adjusting the support length of the two arc-shaped support plates 2. This makes it convenient to support patients with different leg lengths during bone tumor surgery.

[0036] When the support height or inclination needs to be adjusted according to surgical requirements, when adjusting the height, two electric telescopic rods 603 are activated simultaneously to drive the U-shaped support plate 1 to rise. The U-shaped support plate 1 then drives the two arc-shaped support plates 2 to rise in sequence through two L-shaped moving plates 5 and two box-shaped moving seats 3, thus changing its support height. When adjusting the inclination, the electric telescopic rod 603 on the left side is activated separately to drive the slider 602 to move upward. The slider 602 slides on the T-shaped guide rail 601 and drives the bottom left side of the U-shaped support plate 1 to rotate upward through the T-shaped guide rail 601, thereby achieving the tilt adjustment of the U-shaped support plate 1. The U-shaped support plate 1 then drives the two arc-shaped support plates 2 to perform an integrated tilt adjustment through two L-shaped moving plates 5 and two box-shaped moving seats 3. This achieves the effect of flexibly adjusting the support height and inclination of the patient's leg according to the usage requirements, improving the flexibility and applicability of use.

[0037] One end of the tubing 403 is pre-positioned at the location where fluid needs to be drained. When fluid drips during surgery, the collection box 4 is used below the surgical site to collect the dripping fluid. The collected fluid flows into the tubing 403 through the L-shaped tube 402, and then is drained outward through one end of the tubing 403. This achieves the effect of collecting and draining dripping fluid during bone tumor surgery, reducing the phenomenon of serious pollution caused by large and uncontrolled outflow of dripping fluid during bone tumor surgery, and improving the effectiveness of use.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable traction stent for bone tumor surgery, comprising a spiral-shaped support plate (1), characterized in that: Two box-shaped movable seats (3) are provided above the spiral support plate (1). An arc-shaped support plate (2) for supporting the patient's legs is fixedly connected to the top of the box-shaped movable seat (3). An arc-shaped flexible rubber pad (201) is glued and fixed to the inner side of the arc-shaped support plate (2). The spiral support plate (1) is equipped with a bidirectional threaded drive assembly for driving the two box-shaped moving seats (3) to move relative to each other; The top of the spiral support plate (1) is fixedly connected to a liquid collection and drainage assembly for collecting dripping liquid during surgery, and the two box-shaped movable seats (3) are slidably sleeved on the liquid collection and drainage assembly. The bottom of the spiral support plate (1) is equipped with a lifting and tilting adjustment component for raising and lowering and adjusting the angle.

2. The adjustable traction stent for bone tumor surgery according to claim 1, characterized in that: The bidirectional threaded drive assembly includes two symmetrically arranged L-shaped moving plates (5). The top of the L-shaped moving plate (5) is fixedly connected to the bottom of the corresponding box-shaped moving seat (3). Rectangular holes are provided on both sides of the inner wall of the U-shaped support plate (1). The L-shaped moving plate (5) is slidably fitted into the corresponding rectangular hole. A screw (501) is rotatably installed in the rectangular hole. The two screws (501) extend to the U-shaped support plate (1) at their closest ends and are fixedly connected to the same knob (502). The bottom of the knob (502) extends to the bottom of the U-shaped support plate (1). The threads of the two screws (501) are opposite. The two L-shaped moving plates (5) are respectively threaded onto the corresponding screws (501).

3. The adjustable traction stent for bone tumor surgery according to claim 2, characterized in that: The liquid collection and drainage assembly includes a U-shaped support (401) fixedly connected to the top of the U-shaped support plate (1). A liquid collection box (4) is fixedly connected to the top of the U-shaped support plate (401). Two box-shaped movable seats (3) are slidably sleeved on the liquid collection box (4). An L-shaped tube (402) is fixedly connected to the bottom of the liquid collection box (4). The L-shaped tube (402) is located behind the right screw (501). The bottom of the L-shaped tube (402) penetrates the inside of the U-shaped support plate (1) and extends below it. A flexible hose (403) is fixedly connected to the right end of the L-shaped tube (402).

4. The adjustable traction frame for bone tumor surgery according to claim 1, characterized in that: The lifting and tilting adjustment assembly includes a base plate (6) set below the U-shaped support plate (1). Electric telescopic rods (603) are embedded and fixed on both sides of the top of the base plate (6). The protruding end of the electric telescopic rod (603) on the right side is hinged to the bottom right side of the U-shaped support plate (1). A slider (602) is slidably installed on the bottom left side of the U-shaped support plate (1). The bottom of the slider (602) is hinged to the protruding end of the electric telescopic rod (603) on the left side.

5. The adjustable traction stent for bone tumor surgery according to claim 2, characterized in that: Both L-shaped movable plates (5) have threaded grooves on their adjacent sides, and the screw (501) is threaded into the corresponding threaded groove.

6. The adjustable traction stent for bone tumor surgery according to claim 4, characterized in that: The bottom left side of the spiral support plate (1) is fixedly connected to a T-shaped guide rail (601), and the top of the slider (602) is provided with a T-shaped groove that is slidably connected to the T-shaped guide rail (601).

7. The adjustable traction stent for bone tumor surgery according to claim 4, characterized in that: The top of the base plate (6) is fitted with a battery that is electrically connected to the two electric telescopic rods (603), and the top left side of the base plate (6) is fixedly connected with two control switches that are electrically connected to the corresponding electric telescopic rods (603).

8. The adjustable traction stent for bone tumor surgery according to claim 1, characterized in that: The bottom of the box-shaped movable seat (3) has two supporting balls (301) that are in active contact with the top of the spiral support plate (1).

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