Perspective accurate angle control body position fixing device in ankle joint operation

Abstract

A perspective accurate angle control body position fixing device in an ankle joint operation relates to the technical field of medical instruments and comprises a supporting panel, mounting grooves are formed in the opposite ends of the supporting panel, and an operation side body position fixing assembly and an uninjured side body position fixing assembly are arranged in the two mounting grooves respectively; the healthy side body position fixing assembly comprises a fixed U-shaped frame detachably connected with the supporting panel, a movable U-shaped plate and a sliding U-shaped plate are horizontally arranged in the fixed U-shaped frame in a sliding mode, a lifting frame is vertically arranged in the movable U-shaped plate in a lifting mode, self-adaptive plates are rotationally arranged at the positions, located on the two sides, of the top of the lifting frame, and a follow-up plate is rotationally arranged at the top of the sliding U-shaped plate; when the lifting frame moves upwards, the knee joints on the uninjured side bend, the self-adaptive plate and the follow-up plate rotate downwards, and the movable U-shaped plate and the sliding U-shaped plate slide towards the buttocks. The problem that the standard body position is difficult to obtain and maintain during ankle joint fluoroscopy in an existing operation is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a precise angle control body position fixing device for intraoperative fluoroscopy of ankle joint. BACKGROUND

[0002] The ankle joint is an important weight-bearing joint of the lower extremity of the human body, which is composed of the lower end of the tibia, fibula and talus. Its structure is complex and it moves frequently, so it is easy to be damaged due to trauma or degeneration. In modern orthopedic diagnosis and treatment, ankle joint surgery has become a common means to deal with such problems, including fracture reduction and internal fixation, minimally invasive surgery and deformity correction. During the above-mentioned surgical procedures, intraoperative fluoroscopy using a C-arm X-ray machine is a very common and necessary operation. As a mobile and rotating X-ray machine, it can obtain clear images of bones, joints and implanted objects during surgery. During surgery, the patient lies on the operating table, and the doctor uses the C-arm X-ray machine to perform fluoroscopy of the patient's ankle joint in the anteroposterior, lateral and ankle position images to accurately assess the quality of reduction, the position of the implanted object and the joint alignment, thereby effectively guiding the surgical operation and ensuring the final result.

[0003] The existing C-arm X-ray machine intraoperative fluoroscopy has the following disadvantages: It is difficult to achieve and maintain the standard body position. Specifically, the standard shooting body position requires the patient's feet to be separated (the projection of the horizontal direction and the vertical direction of the feet is separated at a certain distance), and the sole of the foot of the examined side needs to be perpendicular to the operating table, and the toes are upward. In this position, the anteroposterior and lateral images of the surgical side ankle joint are obtained, and then the foot of the examined side is internally rotated by 20° to obtain the ankle position image. However, during the operation, the patient is in an anesthetized state and cannot actively control the position of the limb, so medical personnel need to continuously stabilize the non-surgical side lower limb during the operation to avoid interference with the shooting and surgical operation of the surgical side ankle joint; at the same time, the surgical side ankle joint also needs to be adjusted in angle and the body position needs to be maintained to ensure the image quality, so it is difficult to achieve and maintain the standard body position, increasing the difficulty of intraoperative operation.

[0004] In summary, the prior art has obvious inconvenience and defects in actual use, so it needs to be improved. SUMMARY

[0005] In view of the defects in the prior art, the technical problem to be solved by the present application is to provide a precise angle control body position fixing device for intraoperative fluoroscopy of ankle joint, which can keep the patient's surgical side and non-surgical side feet in a standard separated state, and the surgical side foot photography angle can be precisely adjusted and maintained in a standard position, thereby facilitating the photography of the surgical side ankle joint and effectively reducing the difficulty of intraoperative operation.

[0006] To solve the above problems, the present application provides the following technical solutions: The application discloses an accurate angle control body position fixing device for ankle arthroscopy perspective, which comprises a support panel, opposite ends of the support panel are provided with mounting grooves, and an operation side body position fixing assembly and a healthy side body position fixing assembly are respectively arranged in the mounting grooves. The healthy side body position fixing assembly comprises a fixed U-shaped frame which is detachably connected with the support panel, a moving U-shaped plate and a sliding U-shaped plate are arranged in the fixed U-shaped frame and slide horizontally, a lifting frame is arranged in the moving U-shaped plate and lifts vertically, self-adapting plates are arranged at the top of the lifting frame and located at both sides, and a follow-up plate is arranged at the top of the sliding U-shaped plate and rotates. When the lifting frame moves upwards, the healthy side knee joint is flexed, the self-adapting plates and the follow-up plate rotate downwards, and the moving U-shaped plate and the sliding U-shaped plate slide towards the hip.

[0007] As an optimized scheme, the operation side body position fixing assembly comprises two fixed L-shaped plates which are detachably connected with the support panel, a rotating U-shaped frame is arranged between the two fixed L-shaped plates and rotates, a fixed frame and a sliding frame are arranged in the rotating U-shaped frame, the fixed frame is fixedly arranged, the sliding frame is slidingly arranged, fixed plates are fixedly arranged at the top of the sliding frame and located at both sides, and a foot adjusting plate is arranged at the top of the fixed frame and rotates.

[0008] As an optimized scheme, the top of each of the self-adapting plates and the fixed plates is provided with a leg accommodating groove, and the top of each of the follow-up plate and the foot adjusting plate is provided with a foot accommodating groove.

[0009] As an optimized scheme, the bottom of each of the self-adapting plates is fixedly provided with a first arc-shaped rod, one end of the first arc-shaped rod penetrates through the lifting frame and is slidingly connected with the lifting frame, the bottom of the follow-up plate is fixedly provided with a second arc-shaped rod, one end of the second arc-shaped rod penetrates through the sliding U-shaped plate and is slidingly connected with the sliding U-shaped plate, arc-shaped compression springs are arranged on the outer walls of the first arc-shaped rod and the second arc-shaped rod, and stop balls are fixedly connected to the bottom ends of the first arc-shaped rod and the second arc-shaped rod.

[0010] As an optimized scheme, opposite ends of the rotating U-shaped frame are fixedly connected with connecting shafts, the connecting shafts are rotationally connected with the fixed L-shaped plates, one end of each of the connecting shafts penetrates through the fixed L-shaped plate and is fixedly connected with a hand wheel, a fixed block is fixedly arranged on the outer wall of each of the connecting shafts, two stop blocks are fixedly arranged at the end of each of the fixed L-shaped plates, a plug rod is slidingly arranged at the end of the hand wheel, and a plurality of plug grooves are arranged at the end of each of the fixed L-shaped plates.

[0011] As an optimized scheme, the end of the support panel is provided with two avoiding grooves.

[0012] As an optimized scheme, the bottom of the moving U-shaped plate is fixedly provided with a lifting telescopic cylinder, and the telescopic end of the lifting telescopic cylinder penetrates through the moving U-shaped plate and is fixedly connected with the lifting frame.

[0013] As an optimized solution, a drive telescopic cylinder is hinged to the top of the fixed frame, and the telescopic end of the drive telescopic cylinder is hinged to the foot adjustment plate.

[0014] As an optimized solution, the inner wall of the fixed U-shaped frame is fixedly provided with two sliding rods, the inner wall of the rotating U-shaped frame is fixedly provided with two guide rods, the movable U-shaped plate and the sliding U-shaped plate are both slidably connected to the sliding rods, and the sliding frame is slidably connected to the guide rods.

[0015] As an optimized solution, handles are fixedly provided at the opposite ends of the movable U-shaped plate, the sliding U-shaped plate, and the sliding frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The entire device is placed on the operating table. The patient's foot on the operating side and the foot on the unaffected side are placed in the foot receiving slots of the foot adjustment plate and the follower plate, respectively. Medical staff manually adjust the position of the moving U-shaped plate and the sliding frame so that the legs on both sides of the unaffected knee joint are respectively located in the leg receiving slots of the two adaptive plates, and the legs on both sides of the operating knee joint are respectively located in the leg receiving slots of the two fixed plates. During intraoperative fluoroscopy, the lifting frame is moved upward and the unaffected knee joint is flexed. At the same time, the adaptive plates rotate downward as the legs on both sides of the unaffected knee joint bend, and the follower plate rotates downward as the unaffected foot moves. Because the two adaptive plates are restricted to the unaffected knee joint, and the unaffected foot is located in the foot receiving slot of the follower plate, when the unaffected knee joint is flexed, the moving U-shaped plate and the sliding U-shaped plate slide towards the buttocks. The above process can be understood as the knee flexion process of a normal leg when lying flat. Through the above operation... The patient's healthy foot and the operated foot are separated. The telescopic cylinder is driven to rotate the foot adjustment plate until the operated foot is at 90° with the support panel. At this point, the operated foot is in the first standard position. The X-ray machine accurately captures the anteroposterior and lateral views of the patient's operated ankle joint. Then, the insert rod is pulled out to release the handwheel restriction. The medical staff rotates the handwheel to internally rotate the patient's operated leg and foot until the fixing block and the stop block abut. At this point, the operated leg and foot are internally rotated 20°. The insert rod is inserted back into the slot to limit the handwheel. At this point, the operated foot is in the second standard position. The X-ray machine accurately captures the ankle acupoints of the patient's operated ankle joint. This positioning device can keep the patient's operated and unoperated feet in a standard separation state. The imaging angle of the operated foot can be accurately adjusted and maintained in a standard position, which facilitates the imaging of the operated ankle joint and effectively reduces the difficulty of the operation during surgery. 2. The position of the surgical side varies among different patients. When the position of the surgical side changes, the U-shaped fixation frame and L-shaped fixation plate will be disassembled and their positions swapped. At this time, the positions of the corresponding components on the surgical side and the healthy side will be interchanged. The change process is as follows: Figure 8 As shown, the sliding U-shaped plate and sliding frame can be adapted to patients with different leg lengths, which improves the applicability of the device. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the healthy side positioning fixation component of the present invention; Figure 3 This is a schematic diagram of the surgical side positioning fixation component of the present invention; Figure 4 This is a schematic diagram of the leg receiving groove and foot receiving groove of the present invention; Figure 5 This is a schematic diagram of the resetting method of the adaptive board and the follower board of the present invention; Figure 6 This is a schematic diagram of the structure for fixing the end of the L-shaped plate according to the present invention; Figure 7 This is a schematic diagram of the connection between the adaptive plate and the lifting frame of the present invention; Figure 8 This is a schematic diagram illustrating the positional interchange of the surgical and healthy components of the present invention.

[0019] In the diagram: 1-Support panel; 2-Unaffected side positioning fixation component; 3-Mounting slot; 4-Avoidance slot; 5-Operated side positioning fixation component; 6-Fixed U-shaped frame; 7-Lifting frame; 8-Leg receiving slot; 9-Adaptive plate; 10-Foot receiving slot; 11-Follow-up plate; 12-Sliding U-shaped plate; 13-Slide rod; 14-Moving U-shaped plate; 15-Handle; 16-Connecting rod; 17-First arc-shaped rod; 18-Second arc-shaped rod; 19-Arch-shaped compression spring; 20-Stop ball; 21-Lifting telescopic cylinder; 22-Fixed L-shaped plate; 23-Fixed plate; 24-Sliding frame; 25-Foot adjustment plate; 26-Drive telescopic cylinder; 27-Connecting shaft; 28-Handwheel; 29-Insertion rod; 30-Fixed frame; 31-Guide rod; 32-Rotating U-shaped frame; 33-Slot; 34-Stop block; 35-Fixed block. Detailed Implementation

[0020] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0021] like Figures 1 to 8As shown, a precise angle control body position fixing device for ankle arthroscopy perspective, including support panel 1, the opposite end of support panel 1 is provided with mounting slot 3, two mounting slot 3 is respectively provided with operation side body position fixing assembly 5 and healthy side body position fixing assembly 2; Healthy side body position fixing assembly 2 includes the fixed U-shaped frame 6 that can be detachably connected with support panel 1, the inside horizontal sliding of fixed U-shaped frame 6 is equipped with moving U-shaped plate 14 and sliding U-shaped plate 12, the inside vertical lifting of moving U-shaped plate 14 is equipped with lifting frame 7, the top of lifting frame 7 is rotatably provided with self-adapting plate 9 at both sides, the top of sliding U-shaped plate 12 is rotatably provided with follow-up plate 11; When lifting frame 7 moves upward, healthy side knee joint flexion, self-adapting plate 9 and follow-up plate 11 rotate downward, moving U-shaped plate 14 and sliding U-shaped plate 12 slide to the direction of hip.

[0022] Operation side body position fixing assembly 5 includes two fixed L-shaped plates 22 that can be detachably connected with support panel 1, rotatably provided with rotating U-shaped frame 32 between two fixed L-shaped plates 22, rotating U-shaped frame 32 is internally provided with fixedly arranged fixed frame 30 and slidingly arranged sliding frame 24, fixedly provided with fixed plate 23 at both sides of the top of sliding frame 24, rotatably provided with foot adjusting plate 25 at the top of fixed frame 30.

[0023] The top of self-adapting plate 9 and fixed plate 23 is provided with leg accommodating slot 8, the top of follow-up plate 11 and foot adjusting plate 25 is provided with foot accommodating slot 10.

[0024] Self-adapting plate 9 is fixedly provided with a plurality of first arc-shaped rods 17 at the bottom, one end of first arc-shaped rod 17 penetrates lifting frame 7 and is slidably connected therewith, follow-up plate 11 is fixedly provided with second arc-shaped rod 18 at the bottom, one end of second arc-shaped rod 18 penetrates sliding U-shaped plate 12 and is slidably connected therewith, arc-shaped compression spring 19 is sleeved on the outer wall of first arc-shaped rod 17 and second arc-shaped rod 18, and stop ball 20 is fixedly connected to the bottom end of first arc-shaped rod 17 and second arc-shaped rod 18.

[0025] Rotatably connected with fixed L-shaped plate 22 are connected shafts 27 fixedly connected to the opposite ends of rotating U-shaped frame 32, one end of one of connected shafts 27 penetrates fixed L-shaped plate 22 and is fixedly connected with hand wheel 28, fixed block 35 is fixedly arranged on the outer wall of connected shaft 27, two stop blocks 34 are fixedly arranged at the end of fixed L-shaped plate 22, plug rod 29 is slidingly arranged at the end of hand wheel 28, and a plurality of insertion grooves 33 are arranged at the end of fixed L-shaped plate 22.

[0026] Two avoiding slots 4 are arranged at the end of support panel 1.

[0027] Two self-adapting plates 9 are rotatably connected with lifting frame 7 through connecting rod 16.

[0028] The bottom of the mobile U-shaped plate 14 is fixedly provided with a lifting telescopic cylinder 21, and the telescopic end of the lifting telescopic cylinder 21 penetrates through the mobile U-shaped plate 14 and is fixedly connected with the lifting frame 7.

[0029] The top of the fixed frame 30 is hingedly provided with a driving telescopic cylinder 26, and the telescopic end of the driving telescopic cylinder 26 is hingedly connected with the foot adjusting plate 25.

[0030] Two sliding rods 13 are fixedly arranged on the inner wall of the fixed U-shaped frame 6, two guide rods 31 are fixedly arranged on the inner wall of the rotating U-shaped frame 32, the mobile U-shaped plate 14 and the sliding U-shaped plate 12 are slidably connected with the sliding rods 13, and the sliding frame 24 is slidably connected with the guide rods 31.

[0031] The opposite ends of the mobile U-shaped plate 14, the sliding U-shaped plate 12 and the sliding frame 24 are fixedly provided with handles 15.

[0032] The working principle of the device is as follows: The whole device is placed on a surgical bed, the patient sits on the support panel 1 and places the surgical side foot and the healthy side foot in the foot accommodating grooves 10 of the foot adjusting plate 25 and the follower plate 11 respectively, then the patient lies flat on the support panel 1, and medical staff manually adjusts the positions of the mobile U-shaped plate 14 and the sliding frame 24, so that the legs on both sides of the healthy side knee joint are respectively located in the leg accommodating grooves 8 of the two self-adaptive plates 9, and the legs on both sides of the surgical side knee joint are respectively located in the leg accommodating grooves 8 of the two fixed plates 23, during intraoperative fluoroscopy, the lifting frame 7 is moved upward and drives the healthy side knee joint to flex, at the same time, the self-adaptive plates 9 are rotated downward along with the legs on both sides of the healthy side knee joint, and the follower plate 11 is rotated downward along with the healthy side foot, because the two self-adaptive plates 9 are limited at the healthy side knee joint and the healthy side foot is located in the foot accommodating groove 10 of the follower plate 11, when the healthy side knee joint is flexed, the mobile U-shaped plate 14 and the sliding U-shaped plate 12 slide towards the hip, the above process can be understood as the process of flexing the normal leg when lying flat, through the above operation, the healthy side foot and the surgical side foot of the patient are separated, the driving telescopic cylinder 26 drives the foot adjusting plate 25 to rotate until the surgical side foot is 90° with the support panel 1, at this time, the surgical side foot is the first standard position, the X-ray machine is used to accurately shoot the surgical side ankle joint of the patient in the anteroposterior and lateral positions, then the plug rod 29 is pulled out, the restriction of the hand wheel 28 is released, the medical staff rotates the hand wheel 28 to rotate the surgical side leg and foot of the patient inward until the fixed block 35 abuts against the stop block 34, at this time, the surgical side leg and foot are rotated inward by 20°, the plug rod 29 is inserted into the insertion slot 33 again to limit the hand wheel 28, at this time, the surgical side foot is the second standard position, the X-ray machine is used to accurately shoot the surgical side ankle joint of the patient, the body position fixing device can keep the surgical side foot and the non-surgical side foot of the patient in a standard separated state, the shooting angle of the surgical side foot can be accurately adjusted and maintained as a standard position, thereby facilitating the photography of the surgical side ankle joint, and effectively reducing the intraoperative operation difficulty. The position of the surgical side varies among different patients. When the position of the surgical side changes, the U-shaped fixation frame 6 and the L-shaped fixation plate 22 are disassembled and their positions are swapped. At this time, the positions of the corresponding components on the surgical side and the healthy side are swapped. The change process is as follows: Figure 8 As shown, the sliding U-shaped plate 14 and sliding frame 24 can be adapted to patients with different leg lengths, and the above configuration improves the applicability of the device; The device can be used directly on the operating table without sterilization.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A device for precise fluoroscopic angle control and position fixation during ankle joint surgery, characterized in that: Includes a support panel (1), and each of the opposite ends of the support panel (1) is provided with a mounting groove (3). The two mounting grooves (3) are respectively provided with a surgical side positioning fixation component (5) and a healthy side positioning fixation component (2). The healthy side positioning fixation component (2) includes a fixed U-shaped frame (6) that is detachably connected to the support panel (1). The fixed U-shaped frame (6) has a horizontally sliding movable U-shaped plate (14) and a sliding U-shaped plate (12) inside. The movable U-shaped plate (14) has a vertically lifting frame (7) inside. The top of the lifting frame (7) is rotatably provided with adaptive plates (9) on both sides. The top of the sliding U-shaped plate (12) is rotatably provided with a follower plate (11). When the lifting frame (7) moves upward, the healthy knee joint flexes, the adaptive plate (9) and the follower plate (11) rotate downward, and the moving U-shaped plate (14) and the sliding U-shaped plate (12) slide towards the hip.

2. The ankle joint surgery fluoroscopic precision angle control and body positioning fixation device according to claim 1, characterized in that: The surgical side positioning fixation component (5) includes two fixed L-shaped plates (22) that are detachably connected to the support panel (1). A rotating U-shaped frame (32) is rotatably provided between the two fixed L-shaped plates (22). The rotating U-shaped frame (32) has a fixed frame (30) and a sliding frame (24) inside. The top of the sliding frame (24) is fixedly provided with fixed plates (23) on both sides. The top of the fixed frame (30) is rotatably provided with a foot adjustment plate (25).

3. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 2, characterized in that: The top of the adaptive plate (9) and the fixed plate (23) are provided with leg receiving grooves (8), and the top of the follower plate (11) and the foot adjustment plate (25) are provided with foot receiving grooves (10).

4. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 1, characterized in that: The bottom of the adaptive plate (9) is fixedly provided with a plurality of first arc rods (17), one end of the first arc rod (17) passes through the lifting frame (7) and is slidably connected to it. The bottom of the follower plate (11) is fixedly provided with a second arc rod (18), one end of the second arc rod (18) passes through the sliding U-shaped plate (12) and is slidably connected to it. The outer walls of the first arc rod (17) and the second arc rod (18) are both fitted with arc compression springs (19), and the bottom ends of the first arc rod (17) and the second arc rod (18) are both fixedly connected with stop balls (20).

5. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 2, characterized in that: The opposite ends of the rotating U-shaped frame (32) are all fixed with connecting shafts (27). The connecting shafts (27) are rotatably connected to the fixed L-shaped plate (22). One end of the connecting shaft (27) passes through the fixed L-shaped plate (22) and is fixed with a handwheel (28). A fixing block (35) is fixed on the outer wall of the connecting shaft (27). Two stop blocks (34) are fixed on the end of the fixed L-shaped plate (22). A plug rod (29) is slidably passed through the end of the handwheel (28). Several slots (33) are provided on the end of the fixed L-shaped plate (22).

6. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 5, characterized in that: The support panel (1) has two clearance grooves (4) at its end.

7. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 1, characterized in that: The bottom of the movable U-shaped plate (14) is fixedly provided with a lifting telescopic cylinder (21), and the telescopic end of the lifting telescopic cylinder (21) passes through the movable U-shaped plate (14) and is fixedly connected to the lifting frame (7).

8. The ankle joint surgery fluoroscopic precision angle control and positioning fixation device according to claim 2, characterized in that: The top of the fixed frame (30) is hinged with a drive telescopic cylinder (26), and the telescopic end of the drive telescopic cylinder (26) is hinged to the foot adjustment plate (25).

9. The ankle joint surgery fluoroscopic precision angle control and positioning device according to claim 2, characterized in that: The inner wall of the fixed U-shaped frame (6) is fixed with two sliding rods (13), the inner wall of the rotating U-shaped frame (32) is fixed with two guide rods (31), the movable U-shaped plate (14) and the sliding U-shaped plate (12) are both slidably connected to the sliding rods (13), and the sliding frame (24) is slidably connected to the guide rods (31).

10. The intraoperative fluoroscopic precise angle control and body positioning device for ankle joint surgery according to claim 2, characterized in that: Handles (15) are fixedly provided at the opposite ends of the movable U-shaped plate (14), the sliding U-shaped plate (12) and the sliding frame (24).

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