An auxiliary device for neurosurgical cerebral angiography

Abstract

This invention provides an auxiliary device for neurosurgical cerebral angiography, belonging to the field of medical device technology. The auxiliary device includes an operating table body, with a placement platform mounted on top of the operating table body; an adjusting bend is mounted on top of a fixing seat, and a placement tube is fixedly connected to the middle position of the outer wall of the contact pad; the placement assembly includes a base fixedly connected to the top of the placement platform. In the above solution, the auxiliary device for neurosurgical cerebral angiography, by setting the adjusting assembly, changes the operator's operation method of the catheter, stabilizes the position of the catheter, thereby reducing operator fatigue from prolonged hand operation. Furthermore, during the slow advancement of the catheter, placing the catheter in the catheter groove on the inner wall also reduces the difficulty for the operator to lift the catheter, improving the operator's flexibility during operation and ensuring the normal progress of the surgery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an auxiliary device for neurosurgical cerebral angiography. Background Technology

[0002] Cerebral angiography is the gold standard for neurosurgical diagnosis of cerebrovascular diseases. It is an invasive interventional examination in which a thin catheter is inserted into a cerebral blood vessel through puncture of the femoral or radial artery, and an iodine-containing contrast agent is injected. Then, continuous X-ray imaging is used to preserve only the vascular image, clearly showing the morphology, course, stenosis, blockage, malformation, aneurysm, and location of hemorrhage of the cerebral blood vessel.

[0003] Before the procedure, the patient must lie flat on the operating table with their hands placed steadily at their sides, palms facing up, exposing the radial artery. The radial artery is small in diameter, and if it is stimulated by the catheter during the puncture, it is prone to vasospasm, which may result in a longer operation time. The patient may experience swelling, pain, or numbness in their hands and arms, causing discomfort in the arm.

[0004] However, during the procedure, the operator needs to use one hand to stabilize the patient's arm and locate the puncture site, while the other hand holds the catheter and slowly guides it into the patient's body from the puncture point. This process requires the use of existing equipment, is time-consuming, and can easily lead to operator fatigue. Because the catheter needs to be inserted into the patient's body and requires a certain length, any portion of the catheter not yet inserted must be supported by the operator's hand, causing inconvenience during the procedure and potentially affecting its progress. Summary of the Invention

[0005] This invention provides an auxiliary device for neurosurgical cerebral angiography to solve the technical problem that the operation requires both hands, which increases the difficulty and requires the surgeon to hold the catheter with their hands, causing inconvenience during the operation.

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

[0007] An auxiliary device for neurosurgical cerebral angiography includes an operating table body, characterized in that a placement platform is installed on the top of the operating table body, and the position of the placement platform on the operating table body is adjustable;

[0008] An adjustment assembly is installed on the placement platform. The adjustment assembly includes a fixed bracket fixedly connected to the top of the placement platform. An adjustment bend is installed on the top of the fixed bracket. An abutment pad is fixedly connected to the end of the adjustment bend away from the fixed bracket. A placement tube is fixedly connected to the middle position of the outer wall of the abutment pad. A limit ring is fixedly connected to the inner wall of the placement tube.

[0009] A placement assembly is mounted on the placement platform. The placement assembly includes a base fixedly connected to the top of the placement platform, a main support plate fixedly connected to the top of the base, a hand support fixedly connected to the outer wall of the top of the placement platform, and an arm support fixedly connected to the outer wall of the placement platform away from the hand support. Optionally, the placement assembly further includes support feet fixedly connected to the outer wall of the bottom of the placement platform, a movable platform fixedly connected to the bottom of the support frame, a first extension plate fixedly connected to the outer wall of the main support plate, and a second extension plate fixedly connected to the outer wall of the main support plate away from the first extension plate.

[0010] Optionally, the outer wall of the side of the placement table is provided with a first snap-fit ​​hole, a side support plate is fixedly connected to the outer wall of the side of the placement table, and a protrusion is installed on the outer wall of the main body of the operating table.

[0011] Optionally, a first limiting lock is installed on the outer wall of the support frame, and an active fixing tube is fixedly connected to the middle position of the first limiting lock. Alternatively, a second limiting lock is installed on the outer wall of the support frame, and a passive fixing tube is fixedly connected to the middle position of the second limiting lock.

[0012] Optionally, the bottom of the moving platform is provided with an arc-shaped part, the side of the placement platform is provided with a second snap-fit ​​hole, the outer wall of the support frame is fixedly connected with a second snap-fit ​​block and a first snap-fit ​​block, the bottom of the moving platform is provided with an inner groove, and the inner wall of the moving platform is provided with a deformation groove.

[0013] Optionally, the abutment pad is fixedly connected to the outer wall away from the adjusting bend tube with a fitting bend block, the two ends of the placement tube are provided with outward expansion ports, the adjusting bend tube is threaded to the top of the fixed card seat, the outer wall of the abutment pad is provided with several grooves, and the inner wall of the abutment pad is designed to be hollow.

[0014] Optionally, the outer wall of the top of the main body of the operating table is provided with a sliding groove, the placement platform, support frame and moving platform are made of plastic, the outer wall of the moving platform is slidably connected to the inner wall of the sliding groove, the bottom of the base is fixedly connected to the top of the placement platform, the support legs are made of plastic, the palm support platform is divided into two parts, the inner part is made of plastic and the outer wall is fitted with a rubber sleeve, and the arm support platform is made of metal.

[0015] Optionally, the bottoms of the first extension plate and the second extension plate are both fixedly connected to the top of the base, the first snap-fit ​​hole array is distributed on the side of the placement platform, and the side support plate has an arc-shaped structure.

[0016] Optionally, the first limiting lock and the second limiting lock have the same size, the active fixing tube has the same size as the passive fixing tube, the end of the active fixing tube away from the first limiting lock is provided with a snap-fit ​​post, and the inner wall of the passive fixing tube away from the second limiting lock section is provided with a snap-fit ​​groove.

[0017] Optionally, the deformation groove extends through the inner wall of the moving platform, the arc-shaped portion is arc-shaped, and the second snap-fit ​​hole array is distributed on the side of the placement platform.

[0018] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0019] In the above scheme, by setting an adjustment component, the surgeon's operation method of the catheter is changed. The catheter is placed in the placement tube, and the position of the catheter is stabilized, which can reduce the fatigue of the surgeon holding it for a long time. Moreover, during the slow advancement of the catheter, placing the catheter in the catheter groove on the inner wall can also reduce the difficulty for the surgeon to lift the catheter with his hand, improve the surgeon's flexibility during the operation, and ensure the normal progress of the operation.

[0020] By setting up placement components, not only can the patient's arm be placed directly on the main support plate, improving the arm's positioning and reducing arm swaying, but the placement platform's own structure and strength can also be used to further adapt to patients of different weights during placement, thereby effectively improving the stability of the patient's arm and ensuring the accuracy and efficiency of the angiography procedure.

[0021] By incorporating an arm support, main support plate, first extension plate, and second extension plate into the placement assembly, the patient's arm can be placed stably, enhancing stability and improving the smoothness of the operation for medical staff. Furthermore, the support provided by the first extension plate, second extension plate, and side support plate for the arm and palm ensures the patient's comfort during placement, thereby alleviating pressure and fatigue on the patient's arm during surgery.

[0022] By setting the arc-shaped part and the inner groove, it is not only convenient for medical staff to hold and squeeze, forming a raised state on the bottom of the moving stage, which facilitates the separation between the inner groove and the raised part and subsequent sliding, but also the bending state of the arc-shaped part does not affect the engagement between the inner groove and the raised part when not squeezed, thus effectively improving the flexibility of the moving stage in the slide.

[0023] By setting up a contact pad, a fitting bend, a placement tube, and a limiting ring, the catheter can be assisted in entering the patient's body during the puncture process, and the catheter can be fixed in a designated position during the puncture, reducing the difficulty of the operator's operation. At the same time, the fixation state of the catheter on the contact pad can be changed according to the actual puncture situation, thereby improving the flexibility of catheter puncture. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the auxiliary device for neurosurgical cerebral angiography of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the main body of the operating table and the placement platform of the present invention;

[0026] Figure 3 This is a magnified three-dimensional structural diagram of the component placement device of the present invention;

[0027] Figure 4 This is an exploded three-dimensional magnified structural diagram of the placement platform and the moving platform of the present invention;

[0028] Figure 5 This is a three-dimensional enlarged structural diagram of the placement platform, main support plate, and base of the present invention;

[0029] Figure 6 This is a three-dimensional enlarged structural diagram of the main support plate, the first extension plate, and the second extension plate of the present invention;

[0030] Figure 7 This is a three-dimensional enlarged structural diagram of the placement platform, palm support platform, and arm support platform of the present invention;

[0031] Figure 8 This is a three-dimensional structural diagram of the main body and protrusion of the operating table of the present invention;

[0032] Figure 9 This is a three-dimensional enlarged structural diagram of the support frame, moving platform, and arc-shaped part of the present invention;

[0033] Figure 10 This is a three-dimensional enlarged structural diagram of the support frame, the second snap-fit ​​block, and the first snap-fit ​​block of the present invention;

[0034] Figure 11 This is a three-dimensional enlarged structural diagram of the first limiting lock, the second limiting lock, and the deformation groove of the present invention;

[0035] Figure 12 A schematic diagram of the enlarged three-dimensional structure of the adjustment component;

[0036] Figure 13 A three-dimensional enlarged structural diagram of the adjusting bend, the contact pad, and the fitting bend;

[0037] Figure 14 for Figure 13 A magnified three-dimensional structural diagram at point A in the middle;

[0038] Figure 15 This is a three-dimensional magnified structural diagram of the placement tube, limiting ring, and external expansion port.

[0039] [Figure Labels]

[0040] 1. Operating table body; 101. Slide groove; 2. Placement table; 3. Support leg; 4. Support frame; 401. Slot; 5. Moving table; 6. Hand support table; 7. Arm support table; 8. Main support plate; 9. First extension plate; 10. Second extension plate; 11. Base; 1101. Fixing slot; 12. First snap-fit ​​hole; 13. Side support plate; 14. Protrusion; 15. First limit lock; 16. Active fixing tube; 1601. Snap-fit ​​hole 17. Connecting post; 18. Second limit lock; 19. Auxiliary post; 20. Passive fixing tube; 21. Snap-fit ​​groove; 22. Arc-shaped part; 23. Second snap-fit ​​hole; 24. Second snap-fit ​​block; 25. First snap-fit ​​block; 26. Inner groove; 27. Deformation groove; 28. Fixing card seat; 29. ​​Adjusting bend; 20. Abutment pad; 21. Groove strip; 22. Fitting bend; 23. Placement tube; 34. Limiting ring; 35. Outward expansion port. Detailed Implementation

[0041] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 15 As shown, an embodiment of the present invention provides an auxiliary device for neurosurgical cerebral angiography, including an operating table body 1, a placement platform 2 mounted on the top of the operating table body 1, and a support frame 4 mounted on the outer wall of the placement platform 2.

[0043] like Figures 12-15 As shown, the adjustment assembly includes a fixed bracket 25 fixedly connected to the top of the placement platform 2. An adjusting bend 26 is mounted on the top of the fixed bracket 25. An abutment pad 27 is fixedly connected to the end of the adjusting bend 26 away from the fixed bracket 25. A placement tube 29 is fixedly connected to the middle of the outer wall of the abutment pad 27. A limit ring 30 is fixedly connected to the inner wall of the placement tube 29. The top of the fixed bracket 25 has a threaded hole. The fixed bracket 25 and the adjusting bend 26 are adjusted and fixed by bolts. The adjusting bend 26 is divided into two parts: one part is an adjusting tube, the end of which is close to the fixed bracket 25, serving an adjustment and fixing function; the other part is a bent tube, serving to connect and fix the abutment pad 27. The outer wall of the abutment pad 27 has several grooves 2701, and the inner wall of the abutment pad 27 is hollowed out. This embodiment, by setting an adjustment component, changes the way the surgeon operates the catheter. Placing the catheter in the placement tube 29 stabilizes the position of the catheter, thereby reducing the fatigue of the surgeon holding it for a long time. Moreover, during the slow advancement of the catheter, placing the catheter in the catheter groove on the inner wall of 27 can also reduce the difficulty for the surgeon to lift the catheter with his hand, improve the surgeon's flexibility during the operation, and ensure the normal progress of the surgery.

[0044] like Figures 5-7As shown, the placement assembly includes a base 11 fixedly connected to the top of the placement table 2. A main support plate 8 is fixedly connected to the top of the base 11. A palm support 6 is fixedly connected to the outer wall of the top of the placement table 2. An arm support 7 is fixedly connected to the outer wall of the placement table 2 away from the palm support 6. The outer wall of the top of the operating table body 1 has a sliding groove 101. The placement table 2, support frame 4, and moving platform 5 are made of plastic. The outer wall of the moving platform 5 is slidably connected to the inner wall of the sliding groove 101. The bottom of the base 11 is fixedly connected to the top of the placement table 2. The operating table body 1 is an existing structure and will not be described in detail. The bottom of the placement table 2 fits against the top of the operating table body 1. The materials of the placement table 2 and support frame 4 are relatively hard. The moving platform 5 can be detached and installed in the sliding groove 101 on the side of the operating table body 1. The main support plate 8 is made of plastic and is relatively soft overall. The base 11 has multiple fixing grooves, and the support frame 4 has multiple slots 401.

[0045] This embodiment, by incorporating a placement component, allows the patient's arm to be directly placed on the main support plate 8, improving the arm's stability and reducing arm sway. During placement, the structure and strength of the placement platform 2 further adapt to patients of different weights, thereby effectively improving the stability of the patient's arm and ensuring the accuracy and efficiency of the angiography procedure.

[0046] like Figures 3 to 8 As shown, the placement assembly includes a support leg 3 fixedly connected to the bottom outer wall of the placement platform 2, a first extension plate 9 fixedly connected to the outer wall of the main support plate 8, and a second extension plate 10 fixedly connected to the outer wall of the main support plate 8 away from the first extension plate 9. A first snap-fit ​​hole 12 is provided on the outer wall of the side of the placement platform 2, and a side support plate 13 is fixedly connected to the outer wall of the side of the placement platform 2. A protrusion 14 is installed on the outer wall of the operating table body 1. The support leg 3 is made of plastic. The hand support 6 is divided into two parts, with the inner part made of plastic and the outer wall fitted with a rubber sleeve. The arm support 7 is made of metal. The bottoms of the first extension plate 9 and the second extension plate 10 are both fixedly connected to the top of the base 11. The first snap-fit ​​holes 12 are arrayed on the side of the placement platform 2. The side support plate 13 has an arc-shaped structure. The protrusions 14 are arrayed on the inner wall of the slide groove. The main support plate 8, the first extension plate 9, and the second extension plate 10 are an integral structure, and the overall shape is "M".

[0047] Initially, the placement table 2 and the main body of the operating table 1 are separate. Medical staff decide whether to use the auxiliary placement components based on the nature of the patient's surgery. First, the placement table 2 is taken out separately and its surface is observed to be clean. Then, the bottom of the main support plate 8 is installed on the base 11. The base 11 has multiple fixing slots 1101. The bottom of the main support plate 8 can be connected to the fixing slots 1101. Press firmly to ensure that the main support plate 8 is completely locked and fixed to the base 11. At this time, the first extension plate 9 and the second extension plate 10, which are fixed to both ends of the main support plate 8 respectively, are attached to the surface of the base 11. The inner walls of the arm support 7 and the side support plate 13 have multiple lightweight grooves to reduce the weight of the overall structure. The patient's arm is placed on the main support plate 8, the first extension plate 9, and the second extension plate 10. After slowly relaxing, gravity is released directly from top to bottom onto the main support plate 8, the first extension plate 9, and the second extension plate 10, and is pressed onto the placement platform 2 through the base 11. After the patient's arm is fully relaxed, gravity will cause the main support plate 8, the first extension plate 9, and the second extension plate 10 to deform. The remaining arm, which is in a suspended state, will abut against the arm support platform 7 along the extension position of the first extension plate 9. The overall structure of the arm support platform 7 is curved outward and downward, which is more conducive to the placement of the arm, and is based on the actual placement state of the patient's arm on site.

[0048] If the palm is in a high position, the arm will gradually tilt downwards (e.g., Figure 7 As shown, the arm support platform 7 maximizes comfort during placement. The top of the arm support platform 7 is curved upwards, increasing friction on the patient's arm and preventing slippage during placement. After the arm is fully relaxed, the main support plate 8, the first extension plate 9, and the second extension plate 10 in the deformed state will be squeezed to both sides. The main support plate 8, the first extension plate 9, and the second extension plate 10 in the "M" shape will gradually tend towards a flat state. Since the side support plates 13 are fixed at the top positions on both sides of the placement platform 2, the patient's arm is still limited by the side support plates 13 after the main support plate 8, the first extension plate 9, and the second extension plate 10 are deformed into a flat state.

[0049] After the arm is fixed in position, observe the position of the patient's palm. There is also an upward-curving part at the palm support 6. The patient's fingers are slightly bent upward and touch the curved part at the top of the palm support 6, so that the bending state of the fingers matches the curved part at the top of the palm support 6. This can fix the patient's arm in the placement component to the greatest extent and improve the comfort during the operation.

[0050] In this embodiment, multiple friction grooves are formed on the surfaces of the main support plate 8, the first extension plate 9, and the second extension plate 10. On the one hand, this can avoid discomfort and stuffiness of the patient's arm during prolonged contact with the main support plate 8, the first extension plate 9, and the second extension plate 10, thus improving the comfort of the arm. On the other hand, the multiple friction grooves can also increase resistance during contact with the patient's skin, preventing the patient's arm from slipping during placement.

[0051] After the patient's arm is placed, the upper part of the placement table 2 sinks due to gravity. At this time, the support leg 3 changes from not contacting the main body of the operating table 1 to contacting the main body of the operating table 1. The weight of the patient's arm causes the upper part of the placement table 2 to sink. When both ends of the support leg 3 are pressed down, it can help stabilize the fixed position of the placement table 2 on the main body of the operating table 1, improving the smoothness of the operation.

[0052] This embodiment uses an arm support 7, a main support plate 8, a first extension plate 9, and a second extension plate 10 in the placement assembly to stably position the patient's arm, enhancing stability and improving the smoothness of operation for medical staff. The support of the arm and palm by the first extension plate 9, the second extension plate 10, and the side support plate 13 ensures the patient's comfort during placement and relieves pressure and fatigue on the patient's arm during surgery.

[0053] like Figures 9 to 11 As shown, a first limiting lock 15 is installed on the outer wall of the support frame 4, and an active fixing tube 16 is fixedly connected to the middle position of the first limiting lock 15. A second limiting lock 17 is installed on the outer wall of the support frame 4, and a passive fixing tube 18 is fixedly connected to the middle position of the second limiting lock 17. The bottom of the moving platform 5 is provided with an arc-shaped part 19, and a second snap-fit ​​hole 20 is opened on the side of the placement platform 2 (e.g., Figure 7 As shown, the outer wall of the support frame 4 is fixedly connected with a second locking block 21 and a first locking block 22. The bottom of the moving platform 5 is provided with an inner groove 23, and the inner wall of the moving platform 5 is provided with a deformation groove 24. The first limit lock 15 and the second limit lock 17 have the same size. The size of the active fixing tube 16 is the same as the size of the passive fixing tube 18. The end of the active fixing tube 16 away from the first limit lock 15 is provided with a locking post 1601, and the inner wall of the passive fixing tube 18 away from the second limit lock 17 is provided with a locking groove 1801. The deformation groove 24 is provided through the inner wall of the moving platform 5. The arc-shaped part 19 is arc-shaped, and the second locking holes 20 are arrayed on the side of the placement platform 2. The first limit lock 15 and the second limit lock 17 are components of the same size. Similarly, the active fixing tube 16 and the passive fixing tube 18 are also the same. The size of the first locking hole 12 corresponds to the size of the first locking block 22, and the size of the second locking hole 20 corresponds to the size of the second locking block 21. The second limit lock 17 is provided with three auxiliary posts 1701.

[0054] After the placement components are installed, the sliding parts are installed. Specifically, the moving stage 5 is first slid from one side of the operating table body 1 into the slide groove 101 (e.g., Figure 8 As shown), the sliding stage 5 will pass through multiple protrusions 14. At this time, medical staff need to hold the two ends of the moving stage 5 and squeeze it towards the middle. Under the action of the deformation groove 24 and the arc-shaped part 19, the entire moving stage 5 will bulge upward. Since the moving stage 5 is located inside the slide groove 101, no matter how the moving stage 5 bulges upward, it will be limited by the slide groove 101, but it will not affect the bending of the bottom of the moving stage 5. Then the arc-shaped part 19 will drive the inner groove 23 to bulge upward. Then the locking state between the inner groove 23 and the protrusion 14 is removed, and the moving stage 5 can slide freely in the slide groove 101. After selecting a suitable position, align the second locking block 21 with the position of the second locking hole 20, and align the first locking block 22 with the position of the first locking hole 12. Lock the two together in sequence. After locking, use the second locking block 21 and the first locking block 22 to fix the placement stage 2 in four places, and use the contact between the placement stage 2 and the main body of the operating table 1 to ensure the overall stability of the placement stage 2.

[0055] After the sliding stage 5 stops, the arc-shaped part 19 at the bottom of the stage 5 is no longer bent after compression, and the protrusion 14 enters the interior of the inner groove 23, completing the snap-fit ​​fixation state. The stage 5 is limited inside the sliding groove of the operating table body 1. Finally, the passive fixation tube 18 is slidably fixed on the second limit lock 17. Since there is a slot 401 through the support frame 4, the passive fixation tube 18 is inserted along the slot 401 until the second limit lock 17 is in contact with the outer wall of the support frame 4. The auxiliary post 1701 on the second limit lock 17 is snapped into the slot on the support frame 4. Similarly, the first limit lock 15 and the active fixation tube 16 are fixed. When the passive fixation tube 18 contacts the active fixation tube 16, since the end of the active fixation tube 16 is equipped with a snap-fit ​​post 1601 and the end of the passive fixation tube 18 is provided with a snap-fit ​​groove 1801, and the dimensions of the snap-fit ​​post 1601 and the snap-fit ​​groove 1801 are compatible (e.g., Figure 9 As shown, the passive fixing tube 18 and the active fixing tube 16 are tightly fitted together to ensure that the snap-fit ​​post 1601 is fully inserted into the snap-fit ​​groove 1801. Finally, the support frame 4 is pulled slightly to observe the fixing status. If there is no shaking, the imaging operation can begin.

[0056] In this embodiment, during the sliding process of the moving stage 5, if the placement stage 2 is fixed and moved by the support frame 4, the sliding between the bottom of the placement stage 2 and the top of the operating table body 1 can ensure that the sliding of the moving stage 5 is not obstructed. The moving stage 5 and the placement stage 2 are fixed by the support frame 4 and components such as the active fixing tube 16, the second limit lock 17, and the second locking block 21. Then, medical staff only need to hold both ends of the moving stage 5 and squeeze it to disengage the inner groove 23 from the protrusion 14 for sliding adjustment.

[0057] This embodiment, by setting the arc-shaped part 19 and the inner groove 23, not only makes it convenient for medical staff to hold and squeeze, forming a raised state on the bottom of the moving platform 5, which facilitates the separation between the inner groove 23 and the raised part 14 and subsequent sliding, but also ensures that the bending state of the arc-shaped part 19 does not affect the engagement between the inner groove 23 and the raised part 14 when not squeezed, thereby effectively improving the flexibility of the moving platform 5 in the slide.

[0058] like Figures 12 to 15 As shown, the contact pad 27 is fixedly connected to the outer wall of the adjusting bend 26 away from the outer wall of the adjusting bend 26. The two ends of the placement tube 29 are provided with outward expansion ports 31. The adjusting bend 26 is threaded to the top of the fixing seat 25. The contact pad 27 and the adjusting bend 28 are both made of rubber. The placement tube 29 is made of plastic. The limiting rings 30 are distributed on the inner walls of both ends of the placement tube 29. The limiting rings 30 are inclined "S" shaped and are made of rubber. The inner wall of the contact pad 27 is provided with a guide groove.

[0059] In the above operation, the operator has fixed the patient's arm position. Now, the preparation for the puncture operation begins. The bolt connecting the fixing bracket 25 and the adjusting bend 26 is tightened to loosen the adjusting bend 26. Then, the operator holds the adjusting bend 26 and starts to rotate it until the outer wall of the contact pad 27 is close to the patient's arm. During the approach, the contact block 28 will first contact the patient's arm and the upper and lower shapes of the contact block 28 will form a clamping shape, which can clamp the patient's arm position. Then, the operator tightens the fixing bracket 25 and the adjusting bend 26 in the opposite direction to fix them. At this time, the position of the contact pad 27 has been fixed.

[0060] The end of the puncture catheter is inserted into the inner wall of the placement tube 29 along the middle position of the contact pad 27. Since both ends of the placement tube 29 are designed as outwardly flared ports 31, the puncture catheter can be easily inserted. When the catheter enters the placement tube 29, it will first contact the limiting ring 30 at one end. Since the limiting ring 30 is vertically symmetrically distributed about the placement tube 29 (e.g., ... Figure 15As shown), it is divided into left and right sides. When the catheter enters the placement tube 29, there is resistance when it comes into contact with the right limiting ring 30, but it will come out smoothly when it passes through the left limiting ring 30. Conversely, if the catheter is pulled out, there will be resistance when it passes through the left limiting ring 30 at first, but it will come out smoothly when it passes through the right limiting ring 30. Thus, the catheter will not backflow during the catheter puncture process.

[0061] Then, after the end of the catheter contacts the puncture point on the patient's arm, it continues to be pushed and the pushing situation is observed using the screen of the existing instrument. At this time, the operator can clamp the remaining catheter into the catheter groove on the outer wall of the contact pad 27. The catheter groove is connected to the outer port 31 of the placement tube 29, which makes it convenient for the catheter to be directly clamped into the catheter groove on the outer wall of the contact pad 27 after the first puncture and pushing into the patient's body. In actual operation, it is not necessary to clamp all the catheters into the catheter groove on the outer wall of the contact pad 27. If the catheter is frequently pulled, only a small part of the catheter needs to be clamped into the catheter groove on the outer wall of the contact pad 27. This will not affect the slight pulling of the catheter. If the catheter is not frequently pulled, the part of the catheter that has not been punctured into the patient's body is clamped into the catheter groove on the outer wall of the contact pad 27 to fix the direction and position of the remaining catheter. After clamping and fixing the catheter into the catheter groove on the outer wall of the contact pad 27 in the above operation, the operator can free his hands and no longer hold the catheter.

[0062] In this embodiment, the outer wall of the contact pad 27 is not fitted to the patient's arm because during puncture, the end of the puncture catheter needs to be pushed into the patient's body along the puncture point on the patient's arm. If the contact pad 27 is completely fitted to the patient's arm, it is impossible to observe whether the end of the catheter has entered the puncture point on the patient's arm. Only by using the gap between the contact pad 27 and the patient's arm can the catheter be pushed into the patient's body intuitively and accurately.

[0063] In this embodiment, the adjustment component and the placement component can be placed on both sides of the operating table body 1. For ease of explanation and demonstration, the figure only shows one side of the operating table body 1. However, in actual operation, they can be installed on one or both sides of the operating table body 1 according to actual needs. This operation will not affect the progress of the operation.

[0064] This embodiment, by setting up an abutment pad 27, a fitting bend 28, a placement tube 29, and a limiting ring 30, can assist the catheter in entering the patient's body during the puncture process and fix the catheter in a designated position during the puncture process, reducing the difficulty of the operator's operation. At the same time, the fixation state of the catheter on the abutment pad 27 can be changed according to the actual puncture situation, thereby improving the flexibility of catheter puncture.

[0065] The working process of the auxiliary device for neurosurgical cerebral angiography provided by this invention is as follows:

[0066] First, install the bottom of the main support plate 8 onto the base 11. The base 11 has multiple fixing slots, and the bottom of the main support plate 8 can be aligned with the fixing slots. Press firmly to ensure that the main support plate 8 is completely locked and fixed to the base 11. The patient's arm is placed on the main support plate 8, the first extension plate 9, and the second extension plate 10. After slowly relaxing, gravity will be released directly from top to bottom onto the main support plate 8, the first extension plate 9, and the second extension plate 10, and will be pressed onto the placement platform 2 through the base 11. After the patient's arm is completely relaxed, the main support plate 8, the first extension plate 9, and the second extension plate 10 will deform under the action of gravity.

[0067] After the arm is fully relaxed, the main support plate 8, the first extension plate 9 and the second extension plate 10 in the deformed state will be squeezed to both sides. The main support plate 8, the first extension plate 9 and the second extension plate 10 in the "M" shape will gradually tend to a flat state. Since the side support plates 13 are fixed at the top position on both sides of the placement platform 2, when the main support plate 8, the first extension plate 9 and the second extension plate 10 are deformed into a flat plane, the patient's arm is still limited by the side support plates 13.

[0068] After the placement components are installed, the sliding parts are installed. Specifically, the moving stage 5 is slid into the slide groove from one side of the operating table body 1. The moving stage 5 will slide past several protrusions 14. At this time, medical staff need to hold the moving stage 5 at both ends and press it towards the middle. Under the action of the deformation groove 24 and the arc-shaped part 19, the entire moving stage 5 will bulge upward. Then the arc-shaped part 19 will drive the inner groove 23 to bulge upward. The locking state between the inner groove 23 and the protrusion 14 is removed, and the moving stage 5 can slide freely in the slide groove. Align the second locking block 21 with the position of the second locking hole 20, and align the first locking block 22 with the position of the first locking hole 12. Lock the two together in sequence. After locking, the placement stage 2 is fixed in four places by the second locking block 21 and the first locking block 22, and the contact between the placement stage 2 and the operating table body 1 is utilized.

[0069] After the sliding stage 5 stops, the arc-shaped part 19 at the bottom of the stage 5 bends, and the stage 5 is limited to the inside of the groove of the operating table body 1. Finally, the passive fixing tube 18 is slidably fixed onto the second limit lock 17. Since there is a slot 401 through the support frame 4, the passive fixing tube 18 is inserted along the slot 401 until the second limit lock 17 is in contact with the outer wall of the support frame 4. The auxiliary post 1701 on the second limit lock 17 is engaged in the hole on the support frame 4. Similarly, the first limit lock 15 and the active fixing tube 16 are fixed. When the passive fixing tube 18 contacts the active fixing tube 16, since the end of the active fixing tube 16 is equipped with a snap-fit ​​post 1601 and the end of the passive fixing tube 18 is provided with a snap-fit ​​groove 1801, and the size of the snap-fit ​​post 1601 and the snap-fit ​​groove 1801 are matched, the passive fixing tube 18 and the active fixing tube 16 are tightly fitted together, ensuring that the snap-fit ​​post 1601 is completely inserted into the snap-fit ​​groove 1801. Finally, the support frame 4 is pulled slightly to observe the fixed state. If there is no shaking, the imaging operation is started.

[0070] In the above operation, the operator has fixed the patient's arm position and begins to tighten the bolts connecting the fixing bracket 25 and the adjusting bend 26, so that the adjusting bend 26 is in a loose state. Then, the operator holds the adjusting bend 26 and begins to rotate it for adjustment. Then, the operator tightens it in the opposite direction to fix the fixing bracket 25 and the adjusting bend 26. At this time, the position of the contact pad 27 has been fixed. The end of the puncture catheter is inserted into the inner wall of the placement tube 29 along the middle position of the contact pad 27.

[0071] Then, after the end of the catheter contacts the puncture point on the patient's arm, it continues to be pushed. The operator can also clamp the remaining catheter in the catheter groove on the outer wall of the contact pad 27. After clamping and fixing the catheter in the catheter groove on the outer wall of the contact pad 27, the operator can free their hands and no longer hold the catheter.

[0072] In the above scheme, by setting an adjustment component, the surgeon's operation method of the catheter is changed. The catheter is placed in the placement tube 29, which stabilizes the position of the catheter and reduces the fatigue of the surgeon holding it for a long time. Moreover, during the slow advancement of the catheter, placing the catheter in the catheter groove on the inner wall of 27 can also reduce the difficulty for the surgeon to lift the catheter with his hand, improve the surgeon's flexibility during the operation, and ensure the normal progress of the operation.

[0073] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An auxiliary device for neurosurgical cerebral angiography, comprising an operating table body, characterized in that, A placement platform is installed on the top of the main body of the operating table, and the position of the placement platform on the main body of the operating table is adjustable; An adjustment assembly is installed on the placement platform. The adjustment assembly includes a fixed bracket fixedly connected to the top of the placement platform. An adjustment bend is installed on the top of the fixed bracket. An abutment pad is fixedly connected to the end of the adjustment bend away from the fixed bracket. A placement tube is fixedly connected to the middle position of the outer wall of the abutment pad. A limit ring is fixedly connected to the inner wall of the placement tube. The placement assembly is mounted on the placement platform. The placement assembly includes a base fixedly connected to the top of the placement platform, a main support plate fixedly connected to the top of the base, a palm support fixedly connected to the outer wall of the top of the placement platform, and an arm support fixedly connected to the outer wall of the placement platform away from the palm support.

2. The auxiliary device for neurosurgical cerebral angiography according to claim 1, characterized in that, The placement assembly also includes a support leg fixedly connected to the outer wall of the bottom of the placement platform, a movable platform fixedly connected to the bottom of the support frame, a first extension plate fixedly connected to the outer wall of the main support plate, and a second extension plate fixedly connected to the outer wall of the main support plate away from the first extension plate.

3. The auxiliary device for neurosurgical cerebral angiography according to claim 2, characterized in that, The outer wall of the side of the placement table is provided with a first snap-fit ​​hole, and a side support plate is fixedly connected to the outer wall of the side of the placement table. The outer wall of the main body of the operating table is provided with a protrusion.

4. The auxiliary device for neurosurgical cerebral angiography according to claim 3, characterized in that, The outer wall of the support frame is equipped with a first limit lock, and an active fixing tube is fixedly connected to the middle position of the first limit lock. The outer wall of the support frame is also equipped with a second limit lock, and a passive fixing tube is fixedly connected to the middle position of the second limit lock.

5. The auxiliary device for neurosurgical cerebral angiography according to claim 4, characterized in that, The bottom of the mobile platform is provided with an arc-shaped part, the side of the placement platform is provided with a second snap-fit ​​hole, the outer wall of the support frame is fixedly connected with a second snap-fit ​​block and a first snap-fit ​​block, the bottom of the mobile platform is provided with an inner groove, and the inner wall of the mobile platform is provided with a deformation groove.

6. The auxiliary device for neurosurgical cerebral angiography according to claim 1, characterized in that, The contact pad is fixedly connected to the outer wall away from the adjusting bend tube with a fitting bend block. The two ends of the placement tube are provided with outward expansion ports. The adjusting bend tube is threaded to the top of the fixed card seat. The outer wall of the contact pad is provided with several grooves. The inner wall of the contact pad is designed to be hollow.

7. The auxiliary device for neurosurgical cerebral angiography according to claim 2, characterized in that, The outer wall of the top of the main body of the operating table is provided with a sliding groove. The placement table, support frame and moving table are made of plastic. The outer wall of the moving table is slidably connected to the inner wall of the sliding groove. The bottom of the base is fixedly connected to the top of the placement table. The support feet are made of plastic. The palm support is divided into two parts, the inner part is made of plastic and the outer wall is fitted with a rubber sleeve. The arm support is made of metal.

8. The auxiliary device for neurosurgical cerebral angiography according to claim 3, characterized in that, The bottoms of the first extension plate and the second extension plate are both fixedly connected to the top of the base, the first snap-fit ​​hole array is distributed on the side of the placement platform, and the side support plate has an arc-shaped structure.

9. The auxiliary device for neurosurgical cerebral angiography according to claim 4, characterized in that, The first limiting lock and the second limiting lock have the same size, the active fixing tube has the same size as the passive fixing tube, the end of the active fixing tube away from the first limiting lock is provided with a snap-fit ​​post, and the inner wall of the passive fixing tube away from the second limiting lock section is provided with a snap-fit ​​groove.

10. The auxiliary device for neurosurgical cerebral angiography according to claim 5, characterized in that, The deformation groove extends through the inner wall of the moving platform, the arc-shaped part is arc-shaped, and the second snap-fit ​​hole array is distributed on the side of the placement platform.

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