Interventional puncture positioning device for neurology department

Abstract

The invention belongs to the technical field of medical instruments, and particularly provides a neurology intervention puncture positioning device which is composed of a main body frame, an arm supporting plate, an X-axis adjusting plate, an arm bandage, a Y-axis adjusting frame and a puncture needle angle adjuster. According to the device, the linkage plate is triggered through the locking action of the X-axis knob, the fixation of the X-axis adjusting plate and the tightening of the arm bandage are synchronously realized, and the fixation of the Y-axis moving rod and the meshing of the puncture needle angle adjuster are synchronously realized through the locking action of the Y-axis knob, so that the accurate positioning of a puncture point and the stable control of a puncture angle are realized; the problems that in the prior art, positioning precision is low, stability is poor, operation is complex, and adjustment is inconvenient are effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a neurology department intervention puncture positioning device. BACKGROUND

[0002] In the clinical practice of neurology, whole brain angiography is an important means for diagnosing cerebrovascular diseases, which requires radial artery puncture before the operation to inject contrast medium. At present, radial artery puncture mainly relies on the clinical experience of doctors and manual operation, and there are many challenges. First, the radial artery is thin and its position varies from person to person, especially for obese, tortuous or weak patients, it is extremely difficult to accurately position the puncture point. Secondly, during the puncture process, the doctor needs to fix the patient's arm with one hand and perform puncture with the other hand. Any slight hand shaking or involuntary movement of the patient may cause puncture failure, increasing the patient's pain and the risk of blood vessel injury. In addition, the puncture angle is also crucial, and improper angle may easily lead to penetration of the blood vessel wall or puncture failure.

[0003] To improve the success rate of puncture, some auxiliary positioning tools have appeared in the prior art, such as simple puncture frames or guide plates with scales. However, the prior art has many shortcomings: such as single function, the device can usually only fix the angle or only assist positioning, it is difficult to achieve multi-dimensional coordinated adjustment on the same equipment, and it cannot meet the individual needs of different patient anatomical structures; simple structure, mostly using simple screw fastening method, the adjustment process is cumbersome, the locking is not firm enough, and displacement may occur when the puncture is stressed, the stability is poor; complex operation, the adjustment and locking steps are scattered, and it is not possible to achieve quick and convenient integrated operation, which prolongs the preoperative preparation time and increases the risk of infection; lack of linkage, each adjustment mechanism is independent, and it is not possible to achieve positioning and fixing at the same time with one action, and the operation efficiency is low.

[0004] Therefore, there is an urgent need to design a neurology department intervention puncture positioning device with stable structure, accurate positioning, simple operation and multi-dimensional adjustment. SUMMARY

[0005] In view of the above technical problems, the present application provides a neurology department intervention puncture positioning device, which adopts a multi-dimensional adjustment mechanism, a quick locking mechanism and a linkage tightening mechanism, effectively solving the problems of low positioning accuracy, poor stability, complex operation and inconvenient adjustment existing in the prior art. The device can accurately position the puncture point and stably control the puncture angle, effectively improving the success rate of puncture and reducing the pain and complication risk of patients.

[0006] The technical scheme adopted by the present application is as follows: the present application provides a neurology department intervention puncture positioning device, which is composed of a main frame, an arm support plate, an X-axis adjustment plate, an arm strap, a Y-axis adjustment frame and a puncture needle angle adjuster.

[0007] The main body frame is a hollow cuboid without cover, and arm supporting plates are rotatably arranged in the two opposite side walls of the main body frame, the arm supporting plates are U-shaped and used for supporting the arms of patients, and a supporting plate knob is rotatably arranged on the side of the main body frame, and a supporting plate worm is coaxially and fixedly arranged on the end surface of the arm supporting plate close to the supporting plate knob. A supporting plate worm is coaxially and fixedly arranged on the end of the supporting plate knob, the supporting plate worm is engaged with the supporting plate worm, and the supporting plate knob can be rotated to adjust the included angle between the arm supporting plate and the horizontal plane, and the arm supporting plate can be fixed after the supporting plate knob is pressed.

[0008] X-axis grooves are arranged in the two opposite side walls of the main body frame, and X-axis adjusting plates are slidably arranged in the X-axis grooves and can be slid to adjust the position in the arm direction. An X-axis knob is rotatably arranged on the side of the main body frame, two arm bands are fixedly arranged on the front end of the X-axis adjusting plate, a tensioner is fixedly arranged on the bottom surface of the X-axis adjusting plate, a flange is fixedly arranged on the bottom surface of the X-axis adjusting plate close to the X-axis knob, a tension spring is fixedly arranged in the tensioner, one end of the arm band is fixedly connected with the X-axis adjusting plate, the other end of the arm band passes through the X-axis adjusting plate and is wound on the tension spring in the tensioner, and the tensioner generates a pulling force on the arm band through the tension spring. A linkage plate is slidably arranged on the end of the X-axis adjusting plate close to the X-axis knob, when the X-axis knob is not pressed, the linkage plate is closely attached to the flange, the arm band is extruded, and the tensioner is prevented from pulling the arm band downward by static friction, and after the knob is pressed, the linkage plate is separated from the flange, and the tensioner pulls the arm band tightly.

[0009] A Y-axis adjusting frame is fixedly arranged on the upper surface of the X-axis adjusting plate. A Y-axis fixing frame is fixedly arranged on the upper surface of the X-axis adjusting plate, and a Y-axis moving rod is slidably arranged in the Y-axis fixing frame. The lower part of the Y-axis fixing frame is a cuboid column, and the upper part is a hollow metal pipe. One end of the Y-axis moving rod is a cuboid and can slide in the metal pipe, and the other end is provided with a rack. A Y-axis knob is rotatably arranged on the upper end of the Y-axis fixing frame, a gear is coaxially and fixedly arranged on the lower part of the Y-axis knob, the gear is engaged with the rack of the Y-axis moving rod, and the Y-axis moving rod can be adjusted by rotating the Y-axis knob. The Y-axis knob can be locked and the Y-axis moving rod can be fixed at the same time.

[0010] A telescopic plate is sleeved on the rotating shaft of the Y-axis knob, an angle worm is rotatably arranged on the end of the telescopic plate away from the Y-axis knob, a bracket for clamping the angle worm is fixedly arranged on the upper part of the end of the Y-axis moving rod away from the rack, an angle knob is coaxially and fixedly connected with the angle worm, a puncture needle angle adjusting device is rotatably arranged on the side of the Y-axis moving rod, an angle worm is fixedly arranged on the end of the puncture needle angle adjusting device away from the angle worm, and a positioning catheter is fixedly arranged on the angle worm. When the Y-axis knob is pressed, the telescopic plate sleeved on the rotating shaft of the lower part of the Y-axis knob is driven to move downward, the angle worm is engaged with the angle worm, and the puncture needle angle adjusting device can be adjusted by rotating the angle knob.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] (1) The present application integrates various functions such as arm support, puncture point positioning, and puncture angle adjustment in the same device, and through multi-dimensional mechanical adjustment mechanisms, it meets the individual positioning needs of different patient anatomical structures, has high functional integration, and is flexible in positioning.

[0013] (2) The present application uses a reliable knob locking mechanism to ensure that each adjustment component is stable and does not shift during puncture, significantly improving the stability of the device. At the same time, through the linkage device, synchronous positioning and fixing operations are achieved, simplifying the steps, shortening the preoperative preparation time, and making the operation simple and efficient.

[0014] (3) The present application uses precise mechanical transmission structures such as gear racks and worm gears to achieve fine adjustment of the Y-axis direction and puncture angle, has high positioning accuracy, ensures the accuracy of the puncture path, and effectively reduces the puncture failure rate and complication risk.

[0015] (4) The present application frees up one hand of the physician through mechanical structure, allowing them to focus more on the puncture operation itself, reducing errors caused by hand shaking or patient movement. The device has a clear structure and clear operation logic, effectively improving the standardization level and success rate of neurology intervention puncture. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic diagram of a neurology intervention puncture positioning device according to the present application is shown.

[0017] Figure 2 A front view of a neurology intervention puncture positioning device according to the present application is shown.

[0018] Figure 3 A structural schematic diagram of an X-axis adjustment plate, an X-axis knob, and a linkage member in the present application is shown.

[0019] Figure 4 A linkage structure schematic diagram of a linkage plate, an arm strap, and a tightener in the present application is shown.

[0020] Figure 5 A structural schematic diagram of an X-axis adjustment plate, a tightener, and a flange in the present application is shown.

[0021] Figure 6 A structural schematic diagram of a Y-axis adjustment frame in the present application is shown.

[0022] Figure 7 A sectional view of a Y-axis adjustment frame in the present application is shown.

[0023] Figure 8 A rear view of a Y-axis adjustment frame in the present application is shown.

[0024] Wherein, 1, the main frame, 11, X-axis sliding slot, 2, arm support plate, 21, support knob, 22, support worm, 3, X-axis adjusting plate, 31, arm strap, 32, X-axis knob, 33, linkage plate, 34, tightener, 35, flange, 4, Y-axis adjusting frame, 41, Y-axis knob, 42, telescopic plate, 43, angle worm, 44, Y-axis fixed frame, 45, Y-axis moving rod, 46, worm knob, 5, puncture needle angle regulator, 51, angle worm wheel, 52, positioning catheter.

[0025] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, illustrate the application, and are used to explain the application, and do not constitute a limitation on the application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0027] Embodiment one: please refer to Figures 1-8 The embodiment provides a neurosurgery intervention puncture positioning device which is composed of a main frame 1, an arm support plate 2, an X-axis adjusting plate 3, a Y-axis adjusting frame 4 and a puncture needle angle regulator 5.

[0028] The main frame 1 is a hollow cuboid structure without a cover, the arm support plate 2 is rotationally arranged in the two opposite side walls of the main frame 1, the arm support plate 2 is U-shaped and used for stably supporting a patient's arm, a support knob 21 is rotationally arranged in the side wall of the main frame 1, the support knob 21 is coaxially and fixedly provided with a support worm at the end, and a support worm wheel 22 is coaxially and fixedly arranged at the end of the arm support plate 2 close to the support knob 21. The support worm is engaged with the support worm wheel 22, the support knob 21 can be rotated to adjust the included angle between the arm support plate 2 and the horizontal plane, the support knob 21 is locked after being pressed after the adjustment, so that the arm support plate 2 is fixed.

[0029] The X-axis sliding slot 11 is arranged on the opposite side wall of the main frame 1, and the X-axis adjusting plate 3 is slidably arranged in the X-axis sliding slot 11 and can slide along the direction of the patient's arm. The X-axis adjusting plate 3 is fixedly arranged with two arm straps 31 near the end of the arm supporting plate 2. The X-axis knob 32 is rotatably arranged on the side wall of the main frame 1, and the linkage plate 33 is slidably arranged near the end of the X-axis knob 32. The linkage plate 33 is in abutment with the X-axis knob 32. The tensioner 34 is fixedly arranged on one end of the bottom surface of the X-axis adjusting plate 3, and the flange 35 is fixedly arranged on the other end of the bottom surface. The tensioner 34 is fixedly arranged with a tensioned spring inside. One end of the arm strap 31 is fixedly connected with the X-axis adjusting plate 3, and the other end passes through the opening of the X-axis adjusting plate 3 and is wound on the spring in the tensioner 34. The tensioner 34 generates tension on the arm strap 31 through the spring. When the X-axis knob 32 is not pressed, the linkage plate 33 is closely attached to the flange 35, relying on friction to prevent the tensioner 34 from pulling the arm strap 31. After rotating the X-axis knob 32 to move the X-axis adjusting plate 3 and the arm strap 31 to the predetermined position, press the X-axis knob 32 to lock the X-axis adjusting plate 3 and the arm strap 31, and at the same time, the linkage plate 33 is separated from the flange 35 under the pressure of the X-axis knob 32. The tensioner 34 quickly tightens the arm strap 31 downward, thereby fixing the patient's arm on the arm supporting plate 2.

[0030] The Y-axis adjusting frame 4 is fixedly arranged on the upper surface of the X-axis adjusting plate 3. The Y-axis adjusting frame 4 includes the Y-axis fixed frame 44 fixedly arranged on the upper surface of the X-axis adjusting plate 3, the Y-axis moving rod 45 slidably arranged in the Y-axis fixed frame 44, the Y-axis knob 41 rotatably arranged on the upper end of the Y-axis fixed frame 44, the telescopic plate 42 sleeved on the rotating shaft of the Y-axis knob, the angle worm 43 rotatably arranged on the end of the telescopic plate 42 away from the Y-axis knob 41, and the worm knob 46 coaxially fixedly arranged on the angle worm 43. The lower part of the Y-axis fixed frame 44 is a cuboid column, and the upper part is a metal pipe. One end of the Y-axis moving rod 45 is a cuboid slidably arranged in the metal pipe of the Y-axis fixed frame 44, and the other end is a cuboid with a rack on the side surface. The lower part of the Y-axis knob 41 is coaxially fixedly arranged with a gear, which is located inside the metal pipe of the Y-axis fixed frame 44. The gear is in meshing engagement with the rack of the Y-axis moving rod 45. Rotating the knob 41 can drive the Y-axis moving rod 45 to move in the horizontal direction perpendicular to the arm. The upper part of the end of the Y-axis moving rod 45 away from the rack is fixedly arranged with a bracket for clamping the angle worm 43. Therefore, the movement of the Y-axis moving rod 45 will drive the telescopic plate 42 to extend or retract. When the Y-axis moving rod 45 is adjusted to the position, press the Y-axis knob 41 to lock, thereby locking the position of the Y-axis moving rod 45.

[0031] The end side of the Y-axis moving rod 45 is provided with a puncture needle angle adjuster 5. The puncture needle angle adjuster 5 is coaxially fixed with an angle worm wheel 51, and the side of the angle worm wheel 51 is fixed with a positioning guide pipe 52 for guiding the puncture needle. When the Y-axis knob 41 is pressed, the telescopic plate 42 sleeved at the lower part of the Y-axis knob 41 and the angle worm wheel 43 provided on the telescopic plate 42 are driven to move downward, the angle worm wheel 43 is engaged with the angle worm wheel 51, and the rotation of the worm knob 46 can drive the angle worm wheel 43 and the angle worm wheel 51 to rotate, so as to adjust the pitch angle of the positioning guide pipe 52.

[0032] The specific use process of the present scheme is as follows:

[0033] Firstly, the arm of the patient is placed on the U-shaped arm supporting plate 2, the arm supporting plate 2 is adjusted to the appropriate position according to the comfort of the patient and the puncture requirement, and then the arm supporting plate 2 is locked by pressing the supporting plate knob 21.

[0034] Then, according to the previously determined radial artery puncture point, the X-axis knob 32 on the side of the main body frame 1 is rotated to move the X-axis adjusting plate 3, so that the arm band 31 is moved to the both sides of the puncture point for accurate positioning, and then the X-axis knob 32 is pressed. The X-axis knob 32 is locked, the position of the X-axis adjusting plate 3 is also fixed, and the linkage plate 33 inside the X-axis knob 32 is also moved away from the flange 35 due to the pressure, and the friction force on the arm band 31 disappears. The tensioner 34 quickly tightens the two arm bands 31 to stably fix the patient's arm on the arm supporting plate 2, preventing the arm from moving during the puncture process.

[0035] Then, the Y-axis knob 41 on the upper end of the Y-axis adjusting frame 4 is rotated, the gear at the lower part of the Y-axis knob 41 is engaged with the gear rack on the Y-axis moving rod 45, the Y-axis moving rod 45 is driven to move, the vertex of the positioning guide pipe 52 on the puncture needle angle adjuster 5 is aligned with the puncture point in the vertical arm direction, and then the Y-axis knob 41 is pressed to lock the position of the Y-axis moving rod 45.

[0036] When the Y-axis knob 41 is pressed, the telescopic plate 42 is also driven to move the angle worm wheel 43 downward, the angle worm wheel 43 is engaged with the angle worm wheel 51, the worm knob 46 is rotated to accurately fine-tune the angle of the positioning guide pipe 52, and the guide angle of the positioning guide pipe 52 is accurately aligned with the preset optimal puncture angle. After all the positioning and fixing operations are completed, the doctor can hold the puncture needle and perform accurate and stable puncture operation along the positioning guide pipe 52.

[0037] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A neurological interventional puncture positioning device, comprising a main frame (1), an arm support plate (2), an X-axis adjustment plate (3), a Y-axis adjustment frame (4), and a puncture needle angle adjuster (5), characterized in that, The main frame (1) has an arm support plate (2) rotatably mounted on two opposite sides. An X-axis slide groove (11) is provided on two opposite sides of the main frame (1). An X-axis adjustment plate (3) is slidably mounted within the X-axis slide groove (11). A Y-axis adjustment frame (4) is fixedly mounted on the upper surface of the X-axis adjustment plate (3). A puncture needle angle adjuster (5) is rotatably mounted on the side of the Y-axis adjustment frame (4). An X-axis knob (32) is rotatably mounted on the side wall of the main frame (1). The X-axis adjustment plate (3) is located near the hand. An arm strap (31) is fixedly provided at the end of the arm support plate (2). The X-axis knob (32) is connected to the X-axis adjustment plate (3) for transmission. Pressing the X-axis knob (32) can tighten the arm strap (31). The upper part of the Y-axis adjustment frame (4) is provided with a Y-axis knob (41) for rotation. The Y-axis knob (41) is connected to the moving part of the Y-axis adjustment frame (4) for transmission. The Y-axis knob (41) can be pressed to lock the moving part of the Y-axis adjustment frame (4). The rotating shaft of the Y-axis knob (41) is fitted with a telescopic plate (42).

2. The neurological interventional puncture positioning device according to claim 1, characterized in that, A tensioner (34) is fixedly installed at one end of the bottom surface of the X-axis adjustment plate (3), and a flange (35) is fixedly installed at the other end. A tensioned spring is fixedly installed inside the tensioner (34). One end of the arm strap (31) is fixedly connected to the X-axis adjustment plate (3), and the other end passes through the X-axis adjustment plate (3) and is wrapped around the spring inside the tensioner (34). The tensioner (34) generates tension on the arm strap (31) through the spring.

3. The neurological interventional puncture positioning device according to claim 2, characterized in that, The X-axis adjusting plate (3) has a sliding linkage plate (33) near the X-axis knob (32). The linkage plate (33) is pressed against the flange (35), and friction prevents the tightener (34) from tightening the arm strap (31). When the X-axis knob (32) is pressed, the linkage plate (33) is pressed and moves, separating from the flange (35), and the tightener (34) quickly tightens the arm strap (31).

4. The neurological interventional puncture positioning device according to claim 1, characterized in that, An angle worm gear (43) is rotatably mounted on the end of the telescopic plate (42) away from the Y-axis knob (41). An angle worm wheel (51) is fixedly mounted on the puncture needle angle adjuster (5), and a positioning guide tube (52) is fixedly mounted on the side wall of the angle worm wheel (51). When the Y-axis knob (41) is pressed, the telescopic plate (42) drives the angle worm gear (43) downward to engage with the angle worm wheel (51).

5. The neurological interventional puncture positioning device according to claim 1, characterized in that, The arm support plate (2) is coaxially fixed with a support plate worm gear (22) on its side, and a support plate knob (21) is rotatably provided on the side of the main frame (1). The end of the support plate knob (21) is coaxially fixed with a support plate worm, and the support plate worm meshes with the support plate worm gear (22) for transmission.

6. The neurological interventional puncture positioning device according to claim 1, characterized in that, The Y-axis adjustment frame (4) includes a Y-axis fixing frame (44) and a Y-axis moving rod (45) slidably disposed within the Y-axis fixing frame (44). A rack is fixedly provided at the end of the Y-axis moving rod (45) away from the puncture needle angle adjuster (5). A gear is fixedly provided at the lower part of the Y-axis knob (41). The gear is located inside the Y-axis fixing frame (44) and meshes with the rack of the Y-axis moving rod (45) for transmission.

7. The neurological interventional puncture positioning device according to claim 4, characterized in that, A worm knob (46) is coaxially fixed to the worm (43). Rotating the worm knob (46) can drive the worm (43) to rotate.

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