A preoperative orthopedic surgical blood vessel surface projection auxiliary device

Abstract

The utility model discloses a kind of orthopedic preoperative projection auxiliary devices of branch blood vessel surface based on CTA imaging, it includes mattress, the side end of the mattress is detachably connected with horizontal guide rail, the inside fixed connection of the horizontal guide rail has reversible motor, the reversible motor is located at one end of horizontal guide rail, the output of the reversible motor is fixedly connected with horizontal screw rod, the horizontal screw rod is threadedly connected with horizontal sliding block, the horizontal sliding block is fixedly connected with laser sensor;By connecting rod, the support assembly of installed scanning equipment is accurately connected with mattress, the inductive device on XYZ path can feedback XYZ axis relative displacement parameter, it is convenient to calibrate, so that the scanning center of scanning equipment and the target operation area center on the patient body needing to be scanned coincide;Supporting arm and sliding block synchronous keep displacement, so that the scanning equipment after calibration can accurately along Y axis continuous scanning target operation area on the patient body, gather more contrast information.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary technology, and in particular to an auxiliary device for preoperative vascular surface projection in plastic surgery. Background Technology

[0002] Currently, preoperative vascular localization for perforator flaps in plastic surgery primarily utilizes traditional physical examinations, Doppler ultrasound, magnetic resonance angiography (MRA), digital subtraction angiography (DSA), and CT angiography (CTA). While traditional methods such as palpation and handheld Doppler ultrasound are simple to operate, they suffer from low accuracy and rely heavily on operator experience. Color Doppler and MRA provide blood flow information but are limited by resolution or scan time. DSA, while considered the "gold standard" for vascular assessment, is invasive and involves high radiation. In contrast, CTA, through three-dimensional reconstruction technology, can non-invasively and efficiently display the origin, course, diameter, and three-dimensional relationship of perforator vessels with surrounding tissues (resolution up to 0.5 mm), combining high precision and rapid imaging, significantly outperforming other methods. The core advantage of CTA lies in its high-resolution three-dimensional visualization capabilities, allowing for precise preoperative flap design planning and reducing intraoperative exploration risks. It is particularly suitable for the intricate anatomical requirements of complex perforator flaps (such as DIEP and anterolateral thigh flaps). Its short scanning time (<1 minute) and compatibility with calcifications or metal implants further enhance its clinical applicability. Although it requires the use of contrast agents and low-dose radiation, its overall accuracy (>95%), efficiency, and cost-effectiveness have made CTA the "gold standard" for preoperative localization of perforator flaps, driving the development of individualized and precise repair.

[0003] CTA (Computed Tomography Angiography) has indeed demonstrated many significant advantages in vascular imaging, such as clearly presenting the three-dimensional structure of blood vessels and lesion conditions, providing strong support for clinical diagnosis and treatment planning. However, a rather challenging problem currently exists: how to accurately locate the perforating vessels shown in CTA imaging onto the patient's body surface. This difficulty mainly stems from the fact that the patient's position during CT examination and the actual clinical operation and assessment often cannot be precisely matched. Differences in position lead to spatial deviations between the imaging and the actual situation, thus affecting the accuracy of perforating vessel surface localization, the accuracy of preoperative perforator flap design, and increasing the probability of vascular injury and flap necrosis during surgery. Current surgical operating tables lack precise positioning mechanisms, making it difficult to match the patient's CTA examination position during surgical planning, hindering accurate localization and scanning of the patient's blood vessels, and facilitating subsequent surgical planning. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an auxiliary device for preoperative vascular surface projection in plastic surgery. A connecting rod precisely connects a support assembly with a scanning device to a mattress. Sensors along the XYZ path provide feedback on the relative displacement parameters of the XYZ axes, facilitating calibration and ensuring that the scanning center of the scanning device coincides with the center of the target surgical area on the patient. The support arm and slider maintain synchronous displacement, enabling the calibrated scanning device to accurately and continuously scan the target surgical area along the Y-axis, collecting more comparative information. The telescopic support arm extends and retracts along the X-axis, allowing the calibrated scanning device to accurately and continuously scan the target surgical area along the X-axis, collecting more comparative information. The mounting base is a universal base; when scanning is not required but other precision-required equipment is needed, the scanning device can be removed and replaced with other necessary instruments. The connecting rod is a detachable component; when high-precision instruments are not needed, the connecting rod can be removed, allowing the support assembly to be used alone to install other necessary facilities, or the entire support assembly can be pushed away to free up space for other operations by medical personnel.

[0005] This utility model also provides a preoperative vascular surface projection auxiliary device for plastic surgery, comprising: a mattress, a horizontal guide rail detachably connected to the side of the mattress, a reversible motor fixedly connected inside the horizontal guide rail, the reversible motor located at one end of the horizontal guide rail, a horizontal screw fixedly connected to the output end of the reversible motor, a horizontal slider threadedly connected to the horizontal screw, and a laser sensor fixedly connected to the horizontal slider; a base, a connecting groove provided at one end of the base near the mattress, a mounting block provided inside the connecting groove, a laser calibration module fixedly connected to the mounting block, the mounting block being fixedly connected to the horizontal slider via a connecting rod, a lifting rod provided at the upper end of the base, and a first... The mattress includes a telescopic support arm and a second telescopic support arm. A lamp holder is fixedly connected to the end of the first telescopic support arm, and lighting lamps are fixedly connected to both ends of the lamp holder. The lighting lamps are located above the mattress. The second telescopic support arm is located directly below the first telescopic support arm. A mounting base is fixedly connected to the end of the second telescopic support arm, and a scanning device is fixedly connected to the lower surface of the mounting base. The scanning device is located above the mattress. A lifting rod is fixedly connected to a first stepper motor via a first fixed rod, and a second stepper motor is fixedly connected to the lifting rod via a second fixed rod. The output end of the first stepper motor is fixedly connected to the rear end of the first telescopic support arm, and the output end of the second stepper motor is fixedly connected to the rear end of the second telescopic support arm.

[0006] According to the present invention, a preoperative vascular surface projection auxiliary device for orthopedic surgery includes a support column fixedly connected to the lower surface of the mattress. The support column is located at the four corners of the mattress, and a U-shaped locking frame is connected through the support column. A first locking bolt is provided at the rear end of the U-shaped locking frame, and a second locking bolt is provided at the lower end of the U-shaped locking frame. This facilitates the installation, fixation, and height adjustment of the device.

[0007] According to the present invention, in a preoperative vascular surface projection auxiliary device for plastic surgery, the mattress, the support column, the U-shaped locking frame, the first locking bolt, and the second locking bolt are all made of insulating material.

[0008] According to the present invention, a preoperative vascular surface projection auxiliary device for orthopedic surgery includes an X-axis and a Y-axis on the upper surface of the mattress, wherein the X-axis and the Y-axis are perpendicular to each other. This facilitates position calibration.

[0009] According to the present invention, a preoperative vascular surface projection auxiliary device for plastic surgery includes a horizontal guide rail with graduated lines on its upper surface for easy reading of displacement data. Horizontal grooves are provided on both the upper and lower inner walls of the horizontal guide rail to facilitate the limiting and installation of the horizontal slider.

[0010] According to the present invention, a preoperative vascular surface projection auxiliary device for plastic surgery includes a horizontal slider with horizontal sliding rods fixedly connected to both its upper and lower surfaces. The horizontal slider is slidably connected to a horizontal groove via the horizontal sliding rods. This facilitates the stable movement of the horizontal slider.

[0011] According to the present invention, a preoperative vascular surface projection auxiliary device for plastic surgery includes casters fixedly connected to the lower surface of the base, with the casters located at the four corners of the base. This facilitates the movement of the base.

[0012] According to the present invention, a preoperative vascular surface projection auxiliary device for orthopedic surgery includes threaded holes at both ends of the base, which are connected to connecting grooves. A threaded pressure rod is threadedly connected to each threaded hole, and an adjusting handle is provided at the rear end of the threaded pressure rod. This facilitates the locking and fixing of the mounting block.

[0013] According to the present invention, a preoperative vascular surface projection auxiliary device for plastic surgery includes a limiting slide rod and a limiting groove in both the first and second telescopic support arms. The limiting slide rod slides within the limiting groove. This facilitates the limiting of the internal structure and prevents overturning.

[0014] Beneficial effects:

[0015] 1. In existing technologies, CTA scanning and preoperative surgical planning are often performed in different environments, making it difficult to accurately locate the perforating vessels shown by CTA imaging on the patient's body surface, which causes difficulties in the formulation and implementation of surgical plans.

[0016] Compared with existing technologies, this preoperative vascular surface projection auxiliary device for plastic surgery precisely matches the patient's position during CTA scanning with the patient's position during flap design in surgical planning by flexibly detachable mattress and support positioning device. This solves the technical problem of accurately locating perforating vessels displayed by CTA imaging to the patient's body surface.

[0017] 2. Compared with the existing technology, the preoperative vascular surface projection auxiliary device for plastic surgery has a universal base. When scanning is not required but other equipment with high precision is needed, the scanning equipment can be removed and replaced with other required instruments and equipment, which has higher applicability and practicality.

[0018] 3. Compared with the existing technology, the horizontal guide rail and connecting rod of this preoperative vascular surface projection auxiliary device for plastic surgery are detachable components. When it is not necessary to use instruments and equipment with high precision requirements, the connecting rod can be removed and other necessary facilities can be installed using the support component alone, or the horizontal guide rail can be removed and the support component can be pushed away as a whole to free up space and facilitate other operations by medical staff. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the right side of a preoperative vascular surface projection auxiliary device for plastic surgery according to the present invention.

[0021] Figure 2 This is a schematic diagram of the left part of a preoperative vascular surface projection auxiliary device for plastic surgery according to the present invention.

[0022] Figure 3 This is a top view schematic diagram of the auxiliary device for preoperative vascular surface projection in plastic surgery according to the present invention.

[0023] Figure 4 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a preoperative vascular surface projection auxiliary device for plastic surgery according to the present invention.

[0024] Figure 5 This is a partially enlarged three-dimensional cross-sectional view of a preoperative vascular surface projection auxiliary device for plastic surgery according to this utility model.

[0025] Legend:

[0026] 1. Mattress; 2. Horizontal guide rail; 3. Lighting lamp; 4. X-axis center line; 5. Scale line; 6. Mounting base; 7. Laser sensor; 8. Lamp holder; 9. First telescopic support arm; 10. Second telescopic support arm; 11. First fixing rod; 12. First stepper motor; 13. Second stepper motor; 14. Second fixing rod; 15. Lifting rod; 16. Base; 17. Threaded pressure rod; 18. Caster wheel; 19. Threaded hole; 20. Adjustment handle; 21. Horizontal slider; 22. Reversible motor; 23. Y-axis center line; 24. U-shaped locking frame; 25. First locking bolt; 26. Second locking bolt; 27. Connecting rod; 28. Laser calibration module; 29. ​​Mounting block; 30. Connecting groove; 31. Horizontal screw; 32. Horizontal slide groove; 33. Horizontal slide bar; 34. Limiting slide bar; 35. Limiting slide groove; 36. Support column; 37. Scanning equipment. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1 and Figure 4 This utility model provides a preoperative vascular surface projection auxiliary device for plastic surgery, which includes a mattress 1. A support column 36 is fixedly connected to the lower surface of the mattress 1. The support column 36 is located on both sides of the mattress 1 near the four corners. A U-shaped locking frame 24 is connected through the support column 36. The rear end of the U-shaped locking frame 24 is provided with a first locking bolt 25. When the first locking bolt 25 is tightened, the front end of the first locking bolt 25 can abut against the side wall of the support column 36. When the first locking bolt 25 is loosened, the U-shaped locking frame 24 can slide up and down along the support column 36 as a whole. The lower end of the U-shaped locking frame 24 is provided with a second locking bolt 26, which passes through the bottom end of the U-shaped opening of the U-shaped locking frame 24. The inner diameter of the U-shaped opening is adapted to the cross-sectional width of the CT examination bed or operating table. When the second locking bolt 26 is tightened, the upper end of the U-shaped opening of the U-shaped locking frame 24 and the front end of the second locking bolt 26 abut against the upper and lower ends of the cross-section of the bed frame, respectively, so that the mattress 1 is stably placed on the CT examination bed or operating table. When the second locking bolt 26 is loosened, the U-shaped opening of the U-shaped locking frame 24 can be removed from the bed frame. With the U-shaped locking frame 24, the first locking bolt 25, the second locking bolt 26 and the support column 36, the mattress 1 can be adapted to be installed on various models of CT examination beds or operating beds.

[0029] The mattress 1, U-shaped locking frame 24, first locking bolt 25, second locking bolt 26, and support column 36 are made of non-metallic insulating material to avoid interference with the CT equipment. Specifically, the base plate of the mattress 1, U-shaped locking frame 24, first locking bolt 25, second locking bolt 26, and support column 36 can be made of hard plastic, and a soft pad can be placed on top of the base plate of the mattress 1 to increase comfort.

[0030] The upper surface of the mattress 1 is provided with an X-axis center 4 and a Y-axis center 23, which are perpendicular to each other. A horizontal guide rail 2 is detachably connected to the side of the mattress 1. The upper surface of the horizontal guide rail 2 is provided with scale lines 5. Horizontal grooves 32 are provided on both the upper and lower inner walls of the horizontal guide rail 2. A reversible motor 22 is fixedly connected inside the horizontal guide rail 2. The reversible motor 22 is located at one end of the horizontal guide rail 2. A horizontal screw 31 is fixedly connected to the output end of the reversible motor 22. A horizontal slider 21 is threadedly connected to the horizontal screw 31. Horizontal slide rods 33 are fixedly connected to both the upper and lower surfaces of the horizontal slider 21. The horizontal slider 21 is slidably connected to the horizontal grooves 32 through the horizontal slide rods 33. Displacement sensors are provided on the inner sides of the horizontal grooves 32 and the horizontal slider 21, respectively. A laser sensor 7 is provided on the outer side of the horizontal slider 21.

[0031] Specifically, when installing and fixing the device, the mattress 1 can be installed on different bed supports using the U-shaped locking frame 24, and then locked and fixed using the first locking bolt 25 and the second locking bolt 26. Then, the horizontal guide rail 2 is detachably installed on the side of the mattress 1 by means of snap-fit ​​or thread.

[0032] When adjusting the device along the Y-axis, the reversible motor 22 inside the horizontal guide rail 2 drives the horizontal screw 31 to rotate in both directions. The rotation of the horizontal screw 31 causes the horizontal slider 21 to move back and forth along the Y-axis within the horizontal groove 32. The Y-axis displacement data of the horizontal slider 21 can be read according to the scale line 5. The relative displacement parameters of the horizontal slider 21 within the horizontal groove 32 are automatically reported to the control system via a displacement sensor as the Y-axis displacement parameters. The horizontal slider 21 drives the base 16 to move along the Y-axis, and the base 16 drives the lighting lamp 3 and the scanning device 37 to move along the Y-axis.

[0033] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5The preoperative vascular surface projection auxiliary device for plastic surgery also includes a support assembly. The support assembly includes a base 16, with casters 18 fixedly connected to the lower surface of the base 16 at its four corners. A connecting groove 30 is provided at one end of the base 16 near the mattress 1, and a mounting block 29 is slidably disposed inside the connecting groove 30, allowing it to slide up and down within the groove. Multiple corresponding threaded holes 19 are provided at both ends of the base 16, communicating with the connecting groove 30. Threaded pressure rods 17 are threadedly connected to the threaded holes 19, and an adjusting handle 20 is provided at the rear end of each threaded pressure rod 17. When the mounting block 29 needs to be fixed, the threaded pressure rods 17 on both sides of the base 16 are screwed into the appropriate threaded holes 19, and the adjusting handle 20 is tightened so that the front end of the threaded pressure rod 17 abuts against both sides of the mounting block 29 inside the connecting groove 30, thus fixing it in place. Loosening the threaded pressure rods 17 on both sides allows the mounting block 29 to resume sliding up and down within the connecting groove 30. The mounting block 29 is fixedly connected to the laser calibration module 28. The mounting block 29 is detachably fixedly connected to one end of the connecting rod 27, and the other end of the connecting rod 27 is detachably fixedly connected to the horizontal slider 21.

[0034] A lifting rod 15 is provided at the upper end of the base 16. A first telescopic support arm 9 and a second telescopic support arm 10 are sleeved on the upper end of the lifting rod 15. Both the first telescopic support arm 9 and the second telescopic support arm 10 are provided with a limiting slide rod 34 and a limiting slide groove 35. The limiting slide rod 34 slides within the limiting slide groove 35. Displacement sensors are correspondingly provided on the limiting slide rod 34 and the limiting slide groove 35. The displacement sensors automatically report the relative displacement parameters of the limiting slide rod 34 within the limiting slide groove 35 to the control system as X-axis displacement parameters.

[0035] A lamp holder 8 is fixedly connected to the end of the first telescopic support arm 9. Lamp bases are slidably mounted on both ends of the lamp holder 8, and lighting lamps 3 are detachably fixedly connected to the lamp bases. The lighting lamps 3 are located above the mattress 1 and can slide relative to the lamp holder 8 to adjust the lighting area. A second telescopic support arm 10 is located directly below the first telescopic support arm 9. A mounting base 6 is fixedly connected to the end of the second telescopic support arm 10. A scanning device 37 is detachably connected to the lower surface of the mounting base 6. The scanning device 37 is located above the mattress 1. A first stepper motor 12 is fixedly connected to the lifting rod 15 via a first fixed rod 11, and a second stepper motor 13 is fixedly connected to the lifting rod 15 via a second fixed rod 14. The output end of the first stepper motor 12 is fixedly connected to the rear end of the first telescopic support arm 9, and the output end of the second stepper motor 13 is fixedly connected to the rear end of the second telescopic support arm 10. Displacement sensors are installed at the bottom of the lifting rod 15 corresponding to the inner side of the base 16. The displacement sensors automatically report the relative displacement parameters of the lifting rod 15 within the base 16 to the control system as Z-axis displacement parameters.

[0036] Specifically, when installing the base 16 of the device, the base 16 is first fixed to the horizontal slider 21 via the detachable connecting rod 27. The laser calibration module 28 of the mounting block 29 matches the laser sensor 7 of the horizontal slider 21 for horizontal calibration, keeping the connecting rod 27 horizontal. The mounting block 29 is then pressed and fixed by the threaded pressure rods 17 on both sides of the base 16. The horizontal slider 21 drives the scanning device 37 and the illumination lamp 3 to slide along the Y-axis via the base 16. When adjusting the device along the Z-axis, the lifting rod 15 drives the first telescopic support arm 9 and the second telescopic support arm 10 to move up and down synchronously. The first telescopic support arm 9 drives the illumination lamp 3 to move up and down along the Z-axis, and the second telescopic support arm 10 drives the scanning device 37 to move up and down along the Z-axis. When adjusting the device along the X-axis, the first telescopic support arm 9 drives the illumination lamp 3 to move telescopically along the X-axis, and the second telescopic support arm 10 drives the scanning device 37 to move telescopically along the X-axis.

[0037] When the horizontal slider 21, lifting rod 15, and second telescopic support arm 10 are in their initial state, the geometric center of the mounting base 6 is aligned with the center reference point of the mattress 1. That is, when the entire preoperative vascular surface projection auxiliary device for orthopedic surgery is in its initial state, the scanning reference point of the scanning device 37 in the control system coincides with the center reference point of the mattress 1.

[0038] Furthermore, the rear end of the first telescopic support arm 9 is rotatably sleeved with the lifting rod 15. A rotary motor is provided at the front end of the first stepper motor 12, which can drive the first telescopic support arm 9 to rotate inside the corresponding sleeve hole of the lifting rod 15, and at the same time drive the lamp holder 8 to rotate in the vertical plane. The rear end of the second telescopic support arm 10 is rotatably sleeved with the lifting rod 15. A rotary motor is provided at the front end of the second stepper motor 13, which can drive the second telescopic support arm 10 to rotate inside the corresponding sleeve hole of the lifting rod 15, and at the same time drive the scanning device 37 to rotate, changing the scanning angle.

[0039] In this application, the first stepper motor 12, the second stepper motor 13, the lifting rod 15, and the reversible motor 22 can be operated remotely.

[0040] Working Principle: When using this device, first adjust the first locking bolt 25 and the second locking bolt 26 to fix the mattress 1 in the examination position of the CT examination bed. Then, install the horizontal guide rail 2 on the side of the mattress 1 and initialize the reversible motor 22 so that the horizontal slider 21 is in the initial position within the horizontal slide groove 32. Connect the horizontal slider 21 to the mounting block 29 via the connecting rod 27 and perform horizontal calibration. At this time, the horizontal slider 21 is located at the initial Y-axis zero reference point set by the system. Press the threaded pressure rods 17 at both ends of the base 16 with the adjusting handle 20 to ensure that the base 16 can slide synchronously with the horizontal slider 21. Install the scanning device 37 on the mounting base 6 and initialize the lifting rod 15 and the second stepper motor 13. At this time, the scanning center of the scanning device 37 is located at the initial XYZ axis zero reference point set by the system.

[0041] The illumination lamp 3 is installed into the lamp holder on the lamp holder 8. The relative positions of the lamp holder 8 and the lamp holder are adjusted to ensure the illumination effect. The patient lies on the mattress 1, maintaining the CTA examination posture. The control system of the scanning device 37 and the preoperative vascular surface projection auxiliary device for orthopedic surgery is activated to perform an initial scan, recording the XYZ axis displacement data during the scan. After the initial scan is completed, the horizontal guide rail 2 and support assembly are removed from the mattress 1, leaving only the mattress 1 installed on the CT examination table. The patient maintains the examination posture of lying on the mattress 1 during the CTA examination. After the CTA examination is completed, the initial scan image is matched and compared with the patient's CTA examination image to obtain the patient's perforator vessel scan results.

[0042] First, adjust the first locking bolt 25 and the second locking bolt 26 to fix the mattress 1 onto the ordinary operating table. Install the horizontal guide rail 2, and fix the horizontal slider 21 to the mounting block 29 through the connecting rod 27, and perform level calibration. The patient lies on the mattress 1, and the control system of the scanning device 37 and the preoperative vascular surface projection auxiliary device for plastic surgery is activated to perform the surgical preparation scan. During the surgical preparation scan, based on the XYZ axis displacement data recorded during the initial scan and the patient's perforating vessel scan results, the corresponding positions of the blood vessels in the surgical area on the patient's current body position are compared and marked, providing accurate reference for the doctor to formulate a surgical plan and perform the surgery.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A preoperative vascular surface projection auxiliary device for plastic surgery, characterized in that, include: A mattress (1) is provided with a horizontal guide rail (2) detachably connected to the side end of the mattress (1). A reversible motor (22) is fixedly connected inside the horizontal guide rail (2). The reversible motor (22) is located at one end of the horizontal guide rail (2). A horizontal screw (31) is fixedly connected to the output end of the reversible motor (22). A horizontal slider (21) is threadedly connected to the horizontal screw (31). A laser sensor (7) is fixedly connected to the horizontal slider (21). A base (16) is provided with a connecting groove (30) at one end near the mattress (1). A mounting block (29) is provided inside the connecting groove (30). A laser calibration module (28) is fixedly connected to the mounting block (29). The mounting block (29) is fixedly connected to a horizontal slider (21) via a connecting rod (27). A lifting rod (15) is provided at the upper end of the base (16). A first telescopic support arm (9) and a second telescopic support arm (10) are sleeved on the upper end of the lifting rod (15). A lamp holder (8) is fixedly connected to the end of the first telescopic support arm (9). Lighting lamps (3) are fixedly connected to both ends of the lamp holder (8). The lighting lamps (3) are located above the mattress (1). The second telescopic support arm (10) is located directly below the first telescopic support arm (9). The end of the second telescopic support arm (10) is fixedly connected to a mounting base (6). The lower surface of the mounting base (6) is detachably connected to a scanning device (37). The scanning device (37) is located above the mattress (1). The lifting rod (15) is fixedly connected to a first stepper motor (12) via a first fixing rod (11). The lifting rod (15) is fixedly connected to a second stepper motor (13) via a second fixing rod (14). The output end of the first stepper motor (12) is fixedly connected to the rear end of the first telescopic support arm (9). The output end of the second stepper motor (13) is fixedly connected to the rear end of the second telescopic support arm (10).

2. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The lower surface of the mattress (1) is fixedly connected to a support column (36). The support column (36) is located at the four corners of the mattress (1). A U-shaped locking frame (24) is connected through the support column (36). A first locking bolt (25) is provided at the rear end of the U-shaped locking frame (24). A second locking bolt (26) is provided at the lower end of the U-shaped locking frame (24).

3. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 2, characterized in that, The mattress (1), the support column (36), the U-shaped locking frame (24), the first locking bolt (25) and the second locking bolt (26) are all made of insulating material.

4. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 3, characterized in that, The upper surface of the mattress (1) is provided with an X-axis center (4) and a Y-axis center (23), wherein the X-axis center (4) and the Y-axis center (23) are perpendicular to each other.

5. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The upper surface of the horizontal guide rail (2) is provided with scale lines (5), and the upper and lower inner walls of the horizontal guide rail (2) are provided with horizontal grooves (32).

6. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The upper and lower surfaces of the horizontal slider (21) are fixedly connected with horizontal sliding rods (33), and the horizontal slider (21) is slidably connected to the horizontal sliding groove (32) through the horizontal sliding rods (33).

7. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The lower surface of the base (16) is fixedly connected with casters (18), which are located at the four corners of the base (16).

8. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The base (16) has threaded holes (19) at both ends. The threaded holes (19) are connected to the connecting groove (30). The threaded holes (19) are threadedly connected to a threaded pressure rod (17). The rear end of the threaded pressure rod (17) is provided with an adjustment handle (20).

9. The preoperative vascular surface projection auxiliary device for plastic surgery according to claim 1, characterized in that, The first telescopic support arm (9) and the second telescopic support arm (10) are both provided with a limiting slide rod (34) and a limiting slide groove (35), and the limiting slide rod (34) slides in the limiting slide groove (35).

Images