Patient limb fixing device

Abstract

The utility model discloses a patient limb fixing device, which relates to the technical field of medical instruments and comprises an operating bed body, side frames are arranged on the inner sides of the two sides of the operating bed body, a fulcrum shaft is fixed at the center of one end of each side frame, and a first horizontal gear and a first chain gear are respectively fixed on the outer sides of the two fulcrum shafts. A first motor is fixed to the bottom end of the operating bed body and located on the outer side of the first horizontal gear, a second horizontal gear and a second chain gear are fixed to the output end of the first motor, the second horizontal gear is in meshed connection with the first horizontal gear, and a chain is in transmission connection with the outer side between the second chain gear and the first chain gear; the inner sides of the two side frames are slidably connected with pushing and guiding bases, and limb fixing assemblies are arranged at the upper ends of the pushing and guiding bases. According to the limb fixing device for the patient, the first motor drives the second horizontal gear and the second chain gear to rotate, the two side frames are driven to oppositely turn over at the same time, and the two limb fixing assemblies can be conveniently stored to the lower end of an operating bed body.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a patient limb fixation device. Background Technology

[0002] In the operating room, some patients have suffered injuries to their limbs, requiring doctors to perform procedures such as cutting and suturing. However, due to the lack of limb fixation devices, patients are prone to limb movement, which can adversely affect the progress of the surgery.

[0003] For example, Chinese utility model patent (CN218652365U) discloses a limb fixation device for operating room care, which describes: "It includes an operating table, an adjustment mechanism and a fixing ring. A U-shaped frame is installed in the middle of the bottom of the operating table. An electric screw is installed inside the U-shaped frame, and a movable plate slides along the length of the operating table on its outer wall. Fixing frames are welded to both sides of the top wall of the movable plate."

[0004] The aforementioned fixation device occupies a large amount of space on both sides of the operating table. When it is not necessary to fix the patient's limbs, the fixation device cannot be stored, which affects the normal progress of the operation. Therefore, this application proposes a patient limb fixation device. Utility Model Content

[0005] Therefore, it is necessary to provide a patient limb fixation device to address the aforementioned technical problems. Through the overall structural design, when limb fixation is not required, the first motor drives the second spur gear and the second chain gear to rotate. The meshing of the second spur gear and the first spur gear, along with the chain transmission, facilitates the simultaneous relative rotation of the two side frames. This allows the two limb fixation components to be easily stored under the operating table, facilitating the normal conduct of subsequent surgeries.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A patient limb immobilization device for use in operating room patients;

[0008] The device includes an operating table, with side frames on the inner sides of both sides. A support shaft is fixed at the center of one end of each side frame. The end of the support shaft away from the side frame passes through the operating table and is rotatably connected to it. A first spur gear and a first sprocket are fixed to the outer sides of the two support shafts, respectively. A first motor is fixed at the bottom of the operating table, outside the first spur gear. A second spur gear and a second sprocket are fixed to the output end of the first motor, respectively. The second spur gear meshes with the first spur gear. A chain is connected to the outer side of the second sprocket and the first sprocket. A pusher seat is slidably connected to the inner side of each of the two side frames. A limb fixation assembly is provided at the upper end of the pusher seat.

[0009] In a preferred embodiment of the patient limb fixation device provided by this utility model, reciprocating screws are fixed to the inner sides of both side frames.

[0010] In a preferred embodiment of the patient limb fixation device provided by this utility model, a hollow screw cylinder is rotatably connected inside each of the pusher seats and outside the reciprocating screw. The hollow screw cylinder is threadedly connected to the reciprocating screw. A third flat gear is fixed to the outside of the hollow screw cylinder. A second motor is fixed inside the pusher seat and outside the third flat gear. A fourth flat gear is fixed to the output end of the second motor. The fourth flat gear is meshed with the third flat gear.

[0011] As a preferred embodiment of the patient limb fixation device provided by this utility model, the fixation assembly includes a serrated guide plate, and the upper ends of the two push seats are each fixed with a serrated guide plate. A soft pad support arc seat is fixed on the side of the two serrated guide plates that are close to each other, and a flexible fastening strap is fixed on the upper end of the soft pad support arc seat.

[0012] As a preferred embodiment of the patient limb fixation device provided by this utility model, a guide slide is slidably connected to the inner side of the upper end of each of the serrated guide plates, a one-way toothed seat is fixed to one side of the guide slide, the end of the flexible fastening strap away from the soft pad support arc seat is fixed to the one-way toothed seat, and the lower end of the one-way toothed seat is in contact with the serrated guide plate.

[0013] As a preferred embodiment of the patient limb fixation device provided by this utility model, each of the guide slides has a limiting groove inside, and the upper end of the serrated guide plate away from the soft pad support arc seat is threaded with a hand-tightening bolt, the lower end of the hand-tightening bolt is located inside the limiting groove and fits against the limiting groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The patient limb fixation device provided by this utility model, through the overall structural design, allows the first motor to drive the second spur gear and the second chain gear to rotate when the patient's limb fixation is not required. The meshing of the second spur gear and the first spur gear, along with the chain transmission, facilitates the simultaneous relative rotation of the two side frames, thereby making it easy to store the two limb fixation components under the operating table, which is convenient for the normal conduct of subsequent surgeries.

[0016] The second motor allows for easy adjustment of the position of the guide seat inside the side frame, thereby adjusting the position of the limb fixation component. This, combined with the limb fixation component, facilitates tight binding and fixation of the patient's limb, providing both good fixation and a certain degree of comfort. Attached Figure Description

[0017] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the patient limb fixation device provided by this utility model;

[0019] Figure 2 A schematic diagram of the structure between the two supports of the patient limb fixation device provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure of the reciprocating screw of the patient limb fixation device provided by this utility model;

[0021] Figure 4 A schematic diagram of the upper end of the serrated guide plate of the patient limb fixation device provided by this utility model.

[0022] The markings in the diagram are explained as follows:

[0023] 1. Operating table body; 2. Side frame; 3. Support shaft; 4. First spur gear; 5. First sprocket; 6. First motor; 7. Second spur gear; 8. Second sprocket; 9. Chain; 10. Reciprocating screw; 11. Push guide seat; 12. Hollow screw barrel; 13. Third spur gear; 14. Second motor; 15. Fourth spur gear; 16. Serrated guide plate; 17. Soft pad support arc seat; 18. Flexible fastening strap; 19. One-way gear seat; 20. Guide slide plate; 21. Limiting groove; 22. Hand-tightening bolt. Detailed Implementation

[0024] As described in the background section, the aforementioned fixation device occupies a large amount of space on both sides of the operating table. When it is not necessary to fix the patient's limbs, the fixation device cannot be stored, which affects the normal progress of the surgery.

[0025] To solve this technical problem, this utility model provides a patient limb fixation device for use in operating room patients;

[0026] The device includes an operating table 1, with side frames 2 installed on the inner sides of both sides of the operating table 1. A support shaft 3 is fixed at the center of one end of each side frame 2. The end of the support shaft 3 away from the side frame 2 passes through the operating table 1 and is rotatably connected to the operating table 1. A first spur gear 4 and a first sprocket 5 are fixed to the outer sides of the two support shafts 3, respectively. A first motor 6 is fixed at the bottom of the operating table 1 and outside the first spur gear 4. A second spur gear 7 and a second sprocket 8 are fixed to the output end of the first motor 6, respectively. The second spur gear 7 is meshed with the first spur gear 4. A chain 9 is connected to the outer side of the second sprocket 8 and the first sprocket 5. A pusher seat 11 is slidably connected to the inner side of each of the two side frames 2. A limb fixation assembly is installed at the upper end of the pusher seat 11.

[0027] The patient limb fixation device provided by this utility model, through its overall structural design, allows the first motor 6 to drive the second spur gear 7 and the second sprocket 8 to rotate when limb fixation is not required. The meshing of the second spur gear 7 with the first spur gear 4 and the transmission of the chain 9 facilitate the simultaneous relative rotation of the two side frames 2, thereby making it easy to store the two limb fixation components at the lower end of the operating table 1, which is conducive to the normal conduct of subsequent surgeries.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Example 1:

[0031] Please refer to Figure 1-4A patient limb fixation device includes an operating table 1. Side frames 2 are provided on the inner sides of both sides of the operating table 1. Push guide seats 11 are slidably connected to the inner sides of the two side frames 2. A limb fixation component is provided at the upper end of the push guide seat 11. When it is not necessary to fix the patient's limb, a support shaft 3 is fixed at the center of one end of each side frame 2 for easy storage of the limb fixation component. The end of the support shaft 3 away from the side frame 2 passes through the operating table 1 and is rotatably connected to the operating table 1. A first spur gear 4 and a first sprocket 5 are fixed on the outer sides of the two support shafts 3, respectively. A first motor 6 is fixed at the bottom end of the operating table 1 and outside the first spur gear 4. A second spur gear 7 and a second sprocket 8 are fixed at the output end of the first motor 6, respectively. The second spur gear 7 is meshed with the first spur gear 4. A chain 9 is connected to the outer side of the second sprocket 8 and the first sprocket 5.

[0032] The first motor 6 is started to drive the second spur gear 7 and the second chain gear 8 to rotate. By using the meshing of the second spur gear 7 and the first spur gear 4, as well as the transmission of the chain 9, the two side frames 2 can be easily driven to rotate relative to each other, so as to realize the synchronous storage of the two fixed limb components, saving space at the top of the operating table 1 and facilitating subsequent surgery.

[0033] To facilitate the tight binding and fixation of the patient's limbs, and to provide a certain degree of comfort while ensuring good fixation effect, the limb fixation component includes a serrated guide plate 16. The upper ends of the two push seats 11 are each fixed with a serrated guide plate 16. The sides of the two serrated guide plates 16 that are close to each other are each fixed with a soft pad support arc seat 17. The upper end of the soft pad support arc seat 17 is fixed with a flexible fastening strap 18. In order to facilitate the tightening of the flexible fastening strap 18 and thus tight binding of the patient's limbs, a guide slide plate 20 is slidably connected to the inner side of the upper end of each serrated guide plate 16. One-way toothed seat 19 is fixed to one side of the guide slide plate 20. The end of the flexible fastening strap 18 away from the soft pad support arc seat 17 is fixed to the one-way toothed seat 19. The lower end of the one-way toothed seat 19 is in contact with the serrated guide plate 16.

[0034] By utilizing the structural cooperation between the one-way toothed seat 19 and the serrated guide plate 16, the one-way toothed seat 19 cannot be reset after moving away from the soft pad support arc seat 17, thereby driving the flexible fastening strap 18 to achieve one-way tight binding. During the movement of the one-way toothed seat 19, in order to guide the movement of the one-way toothed seat 19 and the guide slide plate 20 and keep them moving in a straight line, each guide slide plate 20 has a limit groove 21 inside. The upper end of the serrated guide plate 16 on the side away from the soft pad support arc seat 17 is threaded with a hand-tightening bolt 22, and the lower end of the hand-tightening bolt 22 is located inside the limit groove 21 and fits against the limit groove 21.

[0035] When it is necessary to release the tight binding of the patient's limbs, simply rotate the hand-tightening bolt 22 to move it upwards, so that the hand-tightening bolt 22 moves out from the inside of the limiting groove 21, thereby facilitating the lateral movement of the guide slide plate 20, so that the lower end of the one-way tooth seat 19 no longer contacts the serrated guide plate 16, thus releasing the tight binding state of the flexible fastening strap 18.

[0036] Example 2:

[0037] The patient limb fixation device provided in Example 1 has been further optimized, specifically, as follows: Figure 3 As shown, in order to adjust the position of the fixed limb assembly, reciprocating screws 10 are fixed to the inner sides of both side frames 2. Hollow screw cylinders 12 are rotatably connected to the inside of each pusher seat 11 and outside the reciprocating screws 10. The hollow screw cylinders 12 are threadedly connected to the reciprocating screws 10. A third spur gear 13 is fixed to the outside of the hollow screw cylinder 12. A second motor 14 is fixed to the inside of the pusher seat 11 and outside the third spur gear 13. A fourth spur gear 15 is fixed to the output end of the second motor 14. The fourth spur gear 15 is meshed with the third spur gear 13.

[0038] The second motor 14 is started to drive the fourth spur gear 15 to rotate. The meshing of the fourth spur gear 15 and the third spur gear 13 drives the hollow screw barrel 12 to rotate. This, in turn, engages the hollow screw barrel 12 with the reciprocating screw 10 through a threaded connection, which facilitates the reciprocating sliding of the pusher seat 11 inside the side frame 2 to achieve position adjustment.

[0039] All of the above electrical components are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that performs control, and existing publicly available power connection technologies will not be described in detail here.

Claims

1. A patient limb immobilization device, characterized in that, The device includes an operating table (1), with side frames (2) on the inner sides of both sides of the operating table (1). A support shaft (3) is fixed at the center of one end of each side frame (2). The end of the support shaft (3) away from the side frame (2) passes through the operating table (1) and is rotatably connected to the operating table (1). A first spur gear (4) and a first sprocket (5) are fixed to the outer sides of the two support shafts (3), respectively. A first motor (6) is fixed at the bottom end of the operating table (1) and outside the first spur gear (4). A second spur gear (7) and a second sprocket (8) are fixed to the output end of the first motor (6), respectively. The second spur gear (7) meshes with the first spur gear (4). A chain (9) is connected to the outer side of the second sprocket (8) and the first sprocket (5). A pusher seat (11) is slidably connected to the inner side of each of the two side frames (2). A limb fixation assembly is provided at the upper end of the pusher seat (11).

2. The patient limb fixation device according to claim 1, characterized in that, Both of the side frames (2) have reciprocating screws (10) fixed to their inner sides.

3. The patient limb fixation device according to claim 2, characterized in that, A hollow screw cylinder (12) is rotatably connected inside each of the pusher seats (11) and outside the reciprocating screw (10). The hollow screw cylinder (12) is threadedly connected to the reciprocating screw (10). A third spur gear (13) is fixed to the outside of the hollow screw cylinder (12). A second motor (14) is fixed inside the pusher seat (11) and outside the third spur gear (13). A fourth spur gear (15) is fixed to the output end of the second motor (14). The fourth spur gear (15) meshes with the third spur gear (13).

4. The patient limb fixation device according to claim 1, characterized in that, The fixing assembly includes a serrated guide plate (16), and the upper ends of the two push seats (11) are fixed with serrated guide plates (16). The sides of the two serrated guide plates (16) that are close to each other are fixed with soft pad support arc seats (17), and the upper end of the soft pad support arc seats (17) is fixed with a flexible fastening strap (18).

5. The patient limb fixation device according to claim 4, characterized in that, Each of the sawtooth guide plates (16) has a guide slide plate (20) slidably connected to the inner side of its upper end. One side of the guide slide plate (20) is fixed with a one-way tooth seat (19). The end of the flexible fastening strap (18) away from the soft pad support arc seat (17) is fixed to the one-way tooth seat (19). The lower end of the one-way tooth seat (19) is in contact with the sawtooth guide plate (16).

6. The patient limb fixation device according to claim 5, characterized in that, Each of the guide slide plates (20) has a limiting groove (21) inside. The upper end of the serrated guide plate (16) away from the soft pad support arc seat (17) is threaded with a hand-tightening bolt (22). The lower end of the hand-tightening bolt (22) is located inside the limiting groove (21) and fits against the limiting groove (21).

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