A new perspective positioning plate

Abstract

The utility model relates to surgical instrument technical field, concretely is a new type perspective positioning board, including frame board, the inside of frame board is equipped with the parallelism of a plurality of support pole, is provided with a plurality of different shape's sliding ball on the support pole, the both ends of frame board are installed and stand on the outside of sliding ball, install telescopic pointer, open the storage hole on sliding ball, the bottom of telescopic pointer installs the lifting seat, and the lifting seat is in the storage hole and vertical sliding. In the new type perspective positioning board, break through the limitation of traditional square positioning board in the multi -segment positioning of spine operation, and the frame board is designed as the long narrow rectangle structure, and the flexibility of positioning board in narrow operation space is greatly enhanced, so that the operator can more accurately carry out positioning operation, effectively avoid the problem of the too large surface area of positioning board interference operation, greatly improve the positioning accuracy, lay the foundation for the success of operation.

Description

Technical Field

[0001] This utility model relates to the field of surgical instrument technology, and more specifically, to a novel fluoroscopic positioning plate. Background Technology

[0002] In the field of surgical instrument technology, precise positioning is crucial for surgical success, especially in spinal surgery, where its importance is even more pronounced. Traditional surgical positioning methods, such as those relying on anatomical landmarks on the human body, are significantly affected by individual patient differences and the surgeon's experience, making it difficult to guarantee positioning accuracy and meet the stringent requirements of modern minimally invasive and minimally invasive surgeries. While X-ray examinations can visualize internal structures, factors such as fluoroscopy angle, magnification, and the surgeon's experience make it difficult for surgeons to accurately locate surgical incisions and entry points using X-ray images. Positioning errors during surgery can lead to prolonged incisions and enlarged wounds, increasing patient trauma and postoperative healing time. Furthermore, multiple intraoperative X-ray exposures significantly increase radiation exposure for both the patient and surgical personnel, affecting the healing of soft tissues in the surgical area.

[0003] Patent application number 201810005300.7 discloses a spinal fluoroscopic positioning guide. This guide improves surgical accuracy and reduces the number of fluoroscopic examinations and radiation exposure by fitting a positioning surface to the patient's spinal fluoroscopic data, marking vertebral lines and surgical incision locations, and using stabilizing components to fix the guide body. However, this positioning guide is designed only for spinal surgery, has poor versatility, and cannot meet the positioning needs of other surgical scenarios. Furthermore, once its structure is manufactured based on specific spinal data, it is difficult to flexibly adjust to adapt to subtle changes in different patients or during surgery. Therefore, the development of a new type of fluoroscopic positioning guide that is accurate in positioning, easy to operate, widely applicable, and flexibly adjustable is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a novel fluoroscopic positioning plate to address the shortcomings of the positioning guides described in the background art, which are designed only for spinal surgery, have poor versatility, and are difficult to meet the positioning needs of other surgical scenarios. Furthermore, once their structure is fabricated based on specific spinal data, it is difficult to flexibly adjust them to adapt to subtle changes in different patients or during surgery.

[0005] To achieve the above objectives, this utility model provides a novel perspective positioning plate, comprising a frame plate, several parallel support rods installed on the inner side of the frame plate, several sliding balls of different shapes installed on the support rods, support feet installed at both ends of the frame plate, a retractable pointer installed on the outer side of the sliding balls, a storage hole opened on the sliding balls, a lifting seat installed at the bottom end of the retractable pointer, the lifting seat sliding vertically within the storage hole, and the bottom end of the retractable pointer being rotatably connected to the lifting seat.

[0006] This system uses a frame plate as the basic support structure, parallel support rods to provide sliding tracks, sliding ball bearings to move along the support rods, and a retractable pointer to slide and rotate vertically via a lifting seat, forming a three-dimensional adjustable positioning system.

[0007] Preferably, the frame plate is a rectangular frame structure.

[0008] This rectangular frame structure provides stable boundary support, facilitating the parallel installation of the support rods and the establishment of positioning benchmarks.

[0009] Preferably, the support rod passes through a sliding ball, which can slide along the support rod to adjust its position.

[0010] This feature involves a support rod that passes through sliding balls to form a linear guide rail, using sliding friction to achieve position adjustment.

[0011] Preferably, the frame plate is welded with locking bolts near the support legs. The end of the locking bolt passes through the support leg and is locked in place by a nut. When the nut is loosened, the support leg can rotate to adjust the support height.

[0012] This feature includes a locking bolt and nut that form an angle adjustment mechanism, allowing the support height to be changed by rotating the support legs.

[0013] Preferably, the shape of the sliding ball includes a triangle, a sphere, or a cube.

[0014] This feature uses sliding balls of different shapes (triangles, spheres, cubes) to provide visual and tactile differentiation.

[0015] Preferably, the retractable pointer comprises a three-section structure, consisting of a fixed sleeve, a telescopic sleeve, and a telescopic rod that are sequentially inserted and fitted together.

[0016] This feature uses a three-section nested structure to lock the length through friction, thus expanding the operating range.

[0017] Preferably, the inner walls on both sides of the storage hole are provided with sliding grooves, the lifting seat includes a lifting block, the top of the lifting block is mounted with two pin fixing plates by bearings, a pin is transversely arranged on the pin fixing plate, the bottom end of the fixing sleeve is provided with a shaft hole, the shaft hole is rotatably connected to the pin, one end of the pin is provided with a limit end, the other end is provided with a threaded end, and the threaded end is locked and positioned by a nut.

[0018] This configuration involves the bearing and pin forming a rotating pair, with the nut providing angle locking, thus creating a universal adjustment joint.

[0019] Preferably, a slider is installed on the outer side of the lifting block, the slider slides in conjunction with the slide groove, and a damping pad is installed on the outer wall of the slider.

[0020] This setting creates a linear motion pair between the slider and the groove, and the damping pad increases frictional resistance, achieving smooth and stable sliding.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This novel fluoroscopic positioning plate overcomes the limitations of traditional square positioning plates in multi-segment positioning during spinal surgery. The frame plate is designed as a slender rectangular structure, greatly enhancing its flexibility in confined surgical spaces. This allows surgeons to perform positioning operations more precisely, effectively avoiding interference from a large plate surface area and significantly improving positioning accuracy, laying the foundation for surgical success. Simultaneously, several sliding ball bearings of different shapes on the positioning plate can flexibly slide and adjust their position along the support rod, precisely conforming to the vertebral surface. Especially before vertebroplasty, this helps the surgical team quickly and accurately pinpoint the specific location of the fractured vertebra, significantly reducing multiple adjustments and repetitive operations due to inaccurate positioning, further improving surgical precision. The retractable pointer design enables intuitive determination of the needle insertion direction. In traditional spinal surgery, determining the needle insertion direction often relies on multiple fluoroscopy sessions, which prolongs the operation time and increases the risk of radiation exposure. The retractable pointer of this positioning plate allows the surgeon to clearly and intuitively observe the vertebral sequence in a lateral view, quickly lock onto the correct needle insertion direction, significantly reduce uncertainties and operational difficulty during surgery, effectively reduce the number of subsequent fluoroscopy sessions, greatly shorten the operation time, and improve surgical efficiency. The support legs at both ends of the frame plate can be adjusted by locking bolts and nuts to rotate and adjust the support height, which can flexibly adapt to the different body characteristics and surgical positioning needs of different patients. The retractable pointer is composed of three sections that are plugged together and form a linkage adjustment mechanism with the storage hole on the sliding ball and the lifting seat. It can adjust the pointer length according to the actual surgical needs, and can also achieve vertical sliding and rotation adjustment. This allows the positioning plate to flexibly adapt to different surgical scenarios and individual patient differences, effectively solving the problems of poor universality and difficulty in flexible adjustment of traditional positioning guide plates, and greatly expanding the scope of application. Attached Figure Description

[0022] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the sliding ball bearing structure in this utility model; Figure 4 This is a schematic diagram of the lifting seat in this utility model; Figure 5 This is a schematic diagram of the retractable pointer in this utility model; The meanings of the labels in the diagram are as follows: 1. Frame plate; 11. Support rod; 12. Support leg; 121. Locking bolt; 2. Sliding ball; 21. Storage hole; 22. Slide groove; 23. Lifting seat; 231. Lifting block; 232. Slider; 233. Damping pad; 234. Bearing; 235. Pin; 2351. Pin fixing plate; 3. Telescopic pointer; 31. Fixing sleeve; 311. Shaft hole; 32. Telescopic sleeve; 33. Telescopic rod. Detailed Implementation

[0023] 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.

[0024] This utility model provides a novel perspective positioning plate, such as Figure 1 , Figure 2 , Figure 3 As shown, the system includes a frame plate 1, with several parallel support rods 11 installed on the inner side of the frame plate 1. Several sliding balls 2 of different shapes are installed on the support rods 11. Support feet 12 are installed at both ends of the frame plate 1. A retractable pointer 3 is installed on the outer side of the sliding balls 2. A storage hole 21 is opened on the sliding balls 2. A lifting seat 23 is installed at the bottom of the retractable pointer 3. The lifting seat 23 slides vertically in the storage hole 21. The bottom of the retractable pointer 3 is rotatably connected to the lifting seat 23.

[0025] The frame plate 1 serves as the basic support component, providing a stable frame structure for the entire positioning plate. Several parallel support rods 11 installed on its inner side form the moving track for the sliding ball bearing 2. The sliding ball bearing 2 can slide on the support rods 11, achieving horizontal position adjustment. A retractable pointer 3 installed on the outer side of the sliding ball bearing 2, through a lifting seat 23 at its bottom, cooperates with a storage hole 21 on the sliding ball bearing 2. The lifting seat 23 can slide vertically within the storage hole 21, achieving pointer height adjustment. Simultaneously, the bottom end of the retractable pointer 3 is rotatably connected to the lifting seat 23, allowing the pointer to adjust its angle in space. Thus, through the synergistic effect of the support rods 11, sliding ball bearing 2, retractable pointer 3, and lifting seat 23, a multi-dimensional adjustable positioning system is constructed. This achieves flexible adjustment in the horizontal, vertical, and angular directions, adapting to the positioning needs of different surgical sites and patient body types, greatly improving positioning accuracy and versatility, and meeting the positioning requirements of diverse surgical scenarios.

[0026] In this embodiment, as Figure 1 As shown, frame plate 1 is a rectangular frame structure.

[0027] The frame plate 1 is designed as a rectangular frame structure. This regular geometric shape facilitates the uniform and parallel installation of the support rods 11 within it, providing a stable installation foundation for the support rods 11 and ensuring the parallelism and spacing consistency between the support rods 11. Simultaneously, the rectangular frame structure has good structural stability and can withstand the external forces applied to the frame plate 1 during positioning. This simplifies the overall structural design, making the installation and layout of the support rods 11 more standardized, ensuring the smoothness and stability of the sliding ball bearings 2 sliding on the support rods 11, thereby improving the operational convenience and stability of the entire positioning plate, allowing doctors to use it quickly and accurately during surgery.

[0028] Specifically, such as Figure 1 , Figure 2 As shown, the support rod 11 passes through the sliding ball 2, and the sliding ball 2 can slide along the support rod 11 to adjust its position.

[0029] The support rod 11 passes through the sliding ball 2, forming a structure similar to a guide rail and a slider. Utilizing the principle of sliding friction, the sliding ball 2 can slide freely along the support rod 11. By manually pushing the sliding ball 2, its position on the support rod 11 can be changed, thereby causing the retractable pointer 3 mounted on the outside of the sliding ball 2 to move horizontally. The retractable pointer 3 can be adjusted to any horizontal position within the plane defined by the frame plate 1. Combined with the vertical sliding and rotation functions of the retractable pointer 3, precise selection of surgical positioning points within the plane is achieved, enhancing the horizontal positioning flexibility of the positioning plate.

[0030] Furthermore, such as Figure 1 , Figure 2 As shown, a locking bolt 121 is welded to the frame plate 1 near the support leg 12. The end of the locking bolt 121 passes through the support leg 12 and is locked and fixed by a nut. When the nut is loosened, the support leg 12 can rotate to adjust the support height.

[0031] A locking bolt 121 is welded to the frame plate 1 near the support leg 12, with its end passing through the support leg 12 and secured by a nut. When the nut is loosened, the support leg 12 is no longer locked and can rotate around the locking bolt 121. By rotating the support leg 12, the angle between the support leg 12 and the frame plate 1 is changed, thereby adjusting the support height of the support leg 12. After adjusting to the appropriate height, tightening the nut will fix the support leg 12 in the corresponding position. The support height of the positioning plate can be flexibly adjusted according to different patients' body shapes, the height of the operating table, and the specific needs of the surgical procedure, so that the positioning plate can better fit the surgical site, improve the comfort and convenience of the surgical procedure, and ensure the stability of the positioning plate during the operation.

[0032] Furthermore, such as Figure 1 , Figure 2As shown, the shapes of the sliding ball 2 include triangles, spheres, and cubes.

[0033] The sliding ball 2 is designed in different shapes such as triangles, spheres, and cubes. These shapes are visually distinct and also differ in tactile feel. During surgical procedures, doctors can quickly identify and differentiate between different sliding balls 2 by observing or touching their shapes, thus corresponding to different functions or positioning areas. In the tense and fast-paced environment of surgery, this facilitates doctors' ability to quickly distinguish between different sliding balls 2 and their corresponding positioning functions, reducing positioning deviations caused by misselection of the wrong sliding ball 2 and improving the efficiency and accuracy of surgical positioning.

[0034] Furthermore, such as Figure 5 As shown, the retractable pointer 3 includes a three-section structure, namely a fixed sleeve 31, a telescopic sleeve 32, and a telescopic rod 33 that are inserted and fitted together in sequence.

[0035] The retractable pointer 3 adopts a three-section structure: a fixed sleeve 31, a retractable sleeve 32, and a retractable rod 33, which are sequentially inserted and fitted together. By stretching or compressing the retractable sleeve 32 and the retractable rod 33, their relative positions with the fixed sleeve 31 are changed. The pointer length is locked by utilizing the friction or limiting structure between the components. When the pointer length needs to be adjusted, the friction is overcome or the limiting structure is released, allowing for retraction. Within a limited space, a wide range of adjustment of the retractable pointer 3's length is achieved, meeting the positioning needs of surgical sites at different depths. Whether it is a surgery in a shallow area or a surgery that needs to penetrate deep into the body, the retractable pointer 3 can be adjusted to accurately point to the positioning point, improving the applicability of the positioning plate.

[0036] Furthermore, such as Figure 4 As shown, the inner walls on both sides of the storage hole 21 are provided with sliding grooves 22. The lifting seat 23 includes a lifting block 231. The top of the lifting block 231 is equipped with two pin fixing plates 2351 through the bearing 234. A pin 235 is horizontally arranged through the pin fixing plate 2351. The bottom end of the fixing sleeve 31 is provided with a shaft hole 311. The shaft hole 311 is rotatably connected to the pin 235. One end of the pin 235 is provided with a limit end, and the other end is provided with a threaded end. The threaded end is locked and positioned by a nut.

[0037] The sliding grooves 22 on both sides of the inner wall of the receiving hole 21 form a sliding engagement with the slider 232 on the lifting seat 23, constituting a linear motion pair, allowing the lifting seat 23 to slide vertically within the receiving hole 21. Two pin fixing plates 2351 are mounted on the top of the lifting block 231 in the lifting seat 23 via bearings 234. The pin 235 passes laterally through the pin fixing plate 2351, and the shaft hole 311 at the bottom of the fixing sleeve 31 is rotatably connected to the pin 235, forming a rotating pair. Simultaneously, a limiting end at one end of the pin 235 prevents it from falling off, and the threaded end at the other end is locked in place by a nut, thus locking the angle of the retractable pointer 3 after rotation. On one hand, this allows for flexible vertical sliding of the retractable pointer 3, enabling adjustment of the pointer height according to the depth of the surgical site; on the other hand, the retractable pointer 3 can rotate at any angle in space and be locked in place by a nut after adjustment to a suitable angle, thereby accurately pointing to the surgical positioning point and adapting to the positioning needs under complex anatomical structures.

[0038] Furthermore, such as Figure 4 As shown, a slider 232 is installed on the outer side of the lifting block 231. The slider 232 slides in conjunction with the slide groove 22. A damping pad 233 is installed on the outer wall of the slider 232.

[0039] The slider 232 mounted on the outer side of the lifting block 231 slides in conjunction with the groove 22 on the inner wall of the storage hole 21, ensuring the guidance and stability of the lifting seat 23 during vertical sliding. The damping pad 233 mounted on the outer wall of the slider 232 increases the friction between the slider 232 and the groove 22, making the lifting seat 23 more stable during sliding and preventing it from sliding on its own due to external forces after being adjusted to the appropriate position. This provides a smooth and stable vertical sliding experience, allowing doctors to control the height of the retractable pointer 3 more precisely, avoiding positioning deviations caused by excessively fast or unstable pointer sliding. At the same time, it effectively prevents the pointer from moving due to external forces such as vibration during surgery, ensuring the accuracy and stability of positioning.

[0040] In the use of this novel fluoroscopic positioning plate, the doctor first makes preliminary adjustments during the preoperative preparation stage, based on the height of the operating table and the patient's body shape. By loosening the nut of the locking bolt 121 near the support leg 12 on the frame plate 1, the support leg 12 is rotated around the locking bolt 121 as an axis, adjusting the angle between the support leg 12 and the frame plate 1, thereby changing the support height of the support leg 12. This allows the positioning plate to be placed stably in a suitable position, maintaining a good fit with the surgical site. After adjustment, the nut is tightened to fix the support leg 12. After the surgery begins, the doctor first uses X-ray examination to obtain images of the internal structure of the surgical site. At this time, the multi-dimensional adjustment function of the new fluoroscopic positioning plate comes into play. In the horizontal direction, since the support rod 11 passes through the sliding ball bearing 2, forming a structure similar to a guide rail and slider, the doctor manually pushes the sliding ball bearing 2 of different shapes, allowing it to slide freely along the support rod 11. This causes the retractable pointer 3 installed on the outside of the sliding ball bearing 2 to move within the plane defined by the frame plate 1, initially adjusting the pointer to near the horizontal position of the target positioning point. Different shapes of the sliding ball bearing 2, such as triangles, spheres, and cubes, help the doctor quickly identify and distinguish different functional or positioning areas, improving operational efficiency. In the vertical direction, the lifting seat 23 at the bottom of the retractable pointer 3 cooperates with the receiving hole 21 on the sliding ball 2. The sliding grooves 22 on both sides of the inner wall of the receiving hole 21 cooperate with the slider 232 on the outer side of the lifting block 231 in the lifting seat 23, forming a linear motion pair. According to the depth of the surgical site, the doctor manually pushes the lifting seat 23, causing it to slide vertically within the receiving hole 21, thus adjusting the height of the retractable pointer 3. At the same time, the damping pad 233 installed on the outer wall of the slider 232 increases the friction during sliding, making the sliding of the lifting seat 23 more stable and less prone to sliding on its own after being adjusted to the appropriate position, ensuring the accuracy of pointer height adjustment. For adjusting the pointer angle, the top of the lifting block 231 in the lifting seat 23 is fixed with a pin 2351 mounted on the bearing 234, and a pin 235 that passes horizontally through the pin 2351 forms a rotating pair with the shaft hole 311 of the bottom fixing sleeve 31 of the retractable pointer 3. The doctor can rotate the retractable pointer 3 to adjust its angle in space according to actual needs. After adjusting to a suitable angle, the pointer angle is locked by tightening the nut at the threaded end of the pin 235, so that it accurately points to the surgical positioning point. If the surgical site is deep, the three-section structure of the telescopic pointer 3—fixed sleeve 31, telescopic sleeve 32, and telescopic rod 33—comes into play. By stretching or compressing the telescopic sleeve 32 and the telescopic rod 33, the doctor changes their relative position to the fixed sleeve 31, and uses the friction or limiting structure between the components to adjust the pointer length, ensuring that the pointer can accurately extend to the target positioning point. Throughout the surgical positioning process, the rectangular frame plate 1 provides a stable support structure for all components. Its regular shape ensures the uniformity and parallelism of the support rods 11 during installation, making the sliding ball bearings 2 slide more smoothly and stably, thus guaranteeing the accuracy and reliability of the entire positioning operation. Through the above series of operations, the new fluoroscopic positioning plate achieves precise positioning of the surgical site, providing a strong guarantee for the smooth progress of the surgery.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel perspective positioning plate, comprising a frame plate (1), characterized in that: The frame plate (1) is equipped with several parallel support rods (11), and several sliding balls (2) of different shapes are provided on the support rods (11). Support feet (12) are installed at both ends of the frame plate (1). A retractable pointer (3) is installed on the outside of the sliding ball (2). A storage hole (21) is opened on the sliding ball (2). A lifting seat (23) is installed at the bottom of the retractable pointer (3). The lifting seat (23) slides vertically in the storage hole (21). The bottom of the retractable pointer (3) is rotatably connected to the lifting seat (23).

2. The novel perspective positioning plate according to claim 1, characterized in that: The frame plate (1) is a rectangular frame structure.

3. The novel perspective positioning plate according to claim 1, characterized in that: The support rod (11) passes through the sliding ball (2), and the sliding ball (2) can slide along the support rod (11) to adjust its position.

4. The novel perspective positioning plate according to claim 1, characterized in that: The frame plate (1) is welded with a locking bolt (121) near the support leg (12). The end of the locking bolt (121) passes through the support leg (12) and is locked and fixed by a nut. When the nut is loosened, the support leg (12) can rotate to adjust the support height.

5. The novel perspective positioning plate according to claim 1, characterized in that: The shape of the sliding ball (2) includes triangle, sphere, and cube.

6. The novel perspective positioning plate according to claim 1, characterized in that: The retractable pointer (3) includes three sections: a fixed sleeve (31), a telescopic sleeve (32), and a telescopic rod (33), which are inserted and fitted together in sequence.

7. The novel perspective positioning plate according to claim 6, characterized in that: The inner walls on both sides of the storage hole (21) are provided with sliding grooves (22). The lifting seat (23) includes a lifting block (231). The top of the lifting block (231) is equipped with two pin fixing plates (2351) through bearings (234). A pin (235) is horizontally arranged through the pin fixing plate (2351). The bottom end of the fixing sleeve (31) is provided with a shaft hole (311). The shaft hole (311) is rotatably connected to the pin (235). One end of the pin (235) is provided with a limit end, and the other end is provided with a threaded end. The threaded end is locked and positioned by a nut.

8. The novel perspective positioning plate according to claim 7, characterized in that: A slider (232) is installed on the outside of the lifting block (231). The slider (232) slides in conjunction with the slide groove (22). A damping pad (233) is installed on the outer wall of the slider (232).

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