Ultrasonic guidance integrated puncture table for difficult internal arteriovenous fistula
By designing an integrated ultrasound-guided puncture table for complex arteriovenous fistulas with clamping and lifting components, the problem of instability of the imaging flat panel on the hospital bed was solved, achieving stable display of ultrasound images and improving the accuracy of puncture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGTAN COUNTY PEOPLES HOSPITAL
- Filing Date
- 2025-01-08
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, imaging tablets are difficult to place stably on the hospital bed, resulting in blurred and jittery ultrasound images, which affects the accuracy and success rate of arteriovenous fistula puncture.
An integrated ultrasound-guided puncture table for complex arteriovenous fistulas was designed, comprising a clamping assembly and a lifting assembly to ensure stable fixation of the ultrasound flat panel and adjustable height to accommodate different patient postures.
Stable display of ultrasound images was achieved, improving the accuracy and success rate of punctures, and enhancing patient comfort and operational efficiency.
Smart Images
Figure CN224099368U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field especially relates to a difficult arteriovenous fistula ultrasound guide integrated puncture platform. BACKGROUND
[0002] Arteriovenous fistula is called the "lifeline" for hemodialysis patients to survive, and the accuracy of its puncture plays a crucial role in subsequent dialysis treatment. In the traditional puncture process, nurses mainly rely on their long-term experience and hand touch perception to locate blood vessels. However, this approach has certain limitations and often leads to inaccurate puncture due to human judgment errors, which not only increases the patients' pain but also may affect the smooth development of dialysis.
[0003] With the rapid development of medical technology, portable ultrasound-guided puncture of arteriovenous fistula has emerged as the times require. Its working principle is mainly based on ultrasound imaging technology. When the device is turned on and contacts the patient's skin, the high-frequency linear array probe emits ultrasound waves and receives the reflected signals. After processing, these signals form real-time blood vessel images on the display screen. Medical staff can accurately determine the location, depth, and direction of blood vessels by observing these images and guide the puncture needle for puncture, greatly improving the success rate and safety of puncture.
[0004] There are still some problems to be solved in current clinical practice. The most prominent one is the lack of bedside integrated puncture platform. In the current actual operation scene, medical staff can only place the image panel on the bed, trying to assist in puncture. However, the bed surface is not designed to carry precision imaging equipment, and the uneven mattress makes it difficult to place the image panel stably. In this state, the ultrasound image is prone to shaking, blurring, and other unstable phenomena, which seriously interferes with the accurate judgment of the shape, direction, and depth of the blood vessels by medical staff, and further negatively affects the success rate of the patient's fistula puncture. Therefore, to further improve the quality of arteriovenous fistula puncture and improve the working conditions of medical staff, it is urgent to develop a bedside integrated puncture platform. To this end, a difficult arteriovenous fistula ultrasound guide integrated puncture platform is proposed to solve the above problems. SUMMARY
[0005] To make up for the above shortcomings, the utility model provides a difficult arteriovenous fistula ultrasound guide integrated puncture platform, aiming to improve the problem that the image panel has no special placing rack in the prior art, which leads to poor fixity of the image panel during use and easily causes the image panel to shake, affecting the observation of the operator.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A kind of difficult arteriovenous fistula ultrasound-guided integrated puncture platform, including bottom plate, the upper surface of the bottom plate is fixedly connected with sleeve rod, the inside of the sleeve rod is connected with lifting rod by lifting assembly, the lifting rod upper end is provided with the clamping assembly for fixing ultrasonic flat plate, the sleeve rod side wall is fixedly connected with storage basket, the lifting rod side wall is fixedly connected with puncture operation table;
[0008] The clamping assembly includes a mounting plate fixedly connected to the upper end of the lifting rod, a clamping plate one fixedly connected to the side wall of the mounting plate, a sliding slot opened in the interior of the mounting plate, a sliding rack slidingly connected to the interior of the mounting plate, a clamping plate two fixedly connected to the side wall of the sliding rack, the sliding rack slidingly connected in the interior of the sliding slot, a fixed block fixedly connected to the interior of the mounting plate, and a spring provided in the interior of the mounting plate.
[0009] As a further description of the above technical solution:
[0010] The lifting assembly includes a mounting sleeve, a rotating sleeve rotatably connected to the interior of the mounting sleeve, and the lifting rod is threadedly connected to the interior of the rotating sleeve.
[0011] As a further description of the above technical solution:
[0012] One end of the spring is fixedly connected to the interior of the sliding rack, and the other end of the spring is fixedly connected to the side wall of the fixed block.
[0013] As a further description of the above technical solution:
[0014] The lifting rod is slidingly connected to the interior of the sleeve rod, and the side wall of the mounting sleeve is fixedly connected to the upper end of the sleeve rod.
[0015] As a further description of the above technical solution:
[0016] The interior of the mounting sleeve is rotatably connected to a connecting rod, and one end of the connecting rod is fixedly connected to a handle.
[0017] As a further description of the above technical solution:
[0018] The side wall of the connecting rod is fixedly connected to a worm, and the side wall of the rotating sleeve is fixedly connected to a worm wheel.
[0019] As a further description of the above technical solution:
[0020] The worm wheel is engaged with the worm.
[0021] The utility model has the advantages of:
[0022] 1. The utility model discloses a through the ultrasonic panel lower extreme is placed on the clamp board one, subsequently through the pull clamp board two makes the sliding frame inside the mounting plate slide, and extrudes the spring, then through the clamp board two is pasted in the ultrasonic panel lateral wall, reaches the fixed effect, solves part difficult arteriovenous fistula ultrasonic guide integrated puncture platform only image panel is forcedly placed on the sickbed, tries to this auxiliary puncture, the uneven mattress makes the image panel difficultly stable deposit, under this condition, the ultrasonic image is extremely easy to appear the unstable phenomenon such as shaking, fuzzy, seriously interferes the accurate judgment of medical staff to the blood vessel shape, the trend and the depth, and then has the negative influence to the patient fistula puncture success rate problem, through above -mentioned structure improves the stability of equipment,
[0023] 2. The utility model discloses a through the rotation handle and drive connecting rod rotation, make the worm drive worm wheel rotate, and then drive the rotating sleeve rotate, through the screw thread relation and push the lifting rod and move, reach the height effect of free adjustment puncture platform according to the patient's posture. ACCURACY
[0024] Figure 1 A three-dimensional schematic view of a difficult arteriovenous fistula ultrasonic guide integrated puncture platform is provided for the utility model.
[0025] Figure 2 A structure diagram of the mounting plate inside a difficult arteriovenous fistula ultrasonic guide integrated puncture platform is provided for the utility model.
[0026] Figure 3 A structure diagram of the sleeve rod of a difficult arteriovenous fistula ultrasonic guide integrated puncture platform is provided for the utility model.
[0027] LEGEND:
[0028] 1, bottom plate, 2, sleeve rod, 3, lifting rod, 4, ultrasonic panel, 5, storage basket, 6, puncture operation platform, 7, mounting plate, 8, clamp board one, 9, sliding groove, 10, sliding frame, 11, clamp board two, 12, fixed block, 13, spring, 14, mounting sleeve, 15, rotating sleeve, 16, worm wheel, 17, connecting rod, 18, worm, 19, handle. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0030] REFERENCE Figure 1And Figure 2 The utility model provides an embodiment: a difficult arteriovenous fistula ultrasound guide integrated puncture platform, the bottom plate 1 upper surface fixedly connected with the sleeve rod 2, the sleeve rod 2 inside is connected the lifting rod 3 through the lifting assembly, and the sleeve rod 2 provides the guide rail for the lifting movement of the lifting rod 3. The clamping assembly for fixing ultrasonic flat plate 4 set up on the lifting rod 3 upper end, is the key structure of guaranteeing ultrasonic flat plate 4 stable work. Mounting plate 7 as the basic framework of whole clamping assembly, its fixed connection is in the lifting rod 3 upper end, provides the installation site for the clamping plate one 8, sliding frame 10 etc. The sliding slot 9 of the inside of mounting plate 7 is provided with accurate guide path for the sliding of sliding frame 10, and the clamping plate one 8 of mounting plate 7 side wall fixed connection can closely adhere to the side wall of ultrasonic flat plate 4, prevents ultrasonic flat plate 4 from happening horizontal displacement because of vibration, collision etc. Accidental situation in the puncture process, and the sliding frame 10 of the inside sliding connection of mounting plate 7, drives clamping plate two 11 to realize the dynamic clamping of ultrasonic flat plate 4. The clamping plate two 11 of sliding frame 10 side wall fixed connection and clamping plate one 8 jointly act, from both sides tightly clamping ultrasonic flat plate 4, ensure that it also will not sway in the vertical direction. The fixed block 12 of inside fixed connection of mounting plate 7 and the spring 13 set up, constitute a ingenious elastic auxiliary clamping system. The spring 13 one end fixed connection is in the inside of sliding frame 10, and the other end fixed connection is in the fixed block 12 side wall, and the article basket 5 of sleeve rod 2 side wall fixed connection can timely receive articles, and let the operation platform keep neat, avoid the accumulation of sundries influence operation, also simultaneously convenient for medical staff to take the required consumables quickly, improve work efficiency, reduce the puncture operation pause time. The puncture operation platform 6 of lifting rod 3 side wall fixed connection can let the patient's limbs comfortably place on it, reduce the discomfort produced because of long time compression, can effectively prevent limbs from sliding because of patient nervous, unconscious movement etc. Factor in the puncture process, create stable operation environment for puncture operation, guarantee the precision and success rate of puncture;
[0031] In the use of the device, first, by placing one side of the ultrasonic flat plate 4 on the clamp plate 8, the ultrasonic flat plate 4 can present the complex vascular structure, blood flow state and the relationship between the surrounding tissues inside the internal arteriovenous fistula in real time and clearly, providing key basis for medical staff to determine the accurate puncture point and plan the safe and effective puncture path subsequently. Then, by pulling up the clamp plate 2, the clamp plate 2 and the clamp plate 1 8 together constitute the clamping structure of the ultrasonic flat plate 4. The upward pulling action can make the sliding frame 10 slide upward inside the sliding groove 9. The sliding groove 9 provides a precise sliding path for the sliding frame 10, ensuring that the sliding frame 10 moves linearly along the predetermined direction without deviation or jamming, ensuring the accuracy and stability of the subsequent clamping action. Further, the spring 13 is squeezed and contracted. When the clamp plate 2 exceeds the height of the ultrasonic flat plate 4, the side wall of the ultrasonic flat plate 4 is attached to the mounting plate 7. Then, the sliding frame 10 is driven to slide downward by the tension of the spring 13. The spring 13 releases the stored energy before, which is converted into tension on the sliding frame 10, so that the sliding frame 10 can return to the initial position smoothly and quickly. Then, the clamp plate 2 is attached to the other side of the ultrasonic flat plate 4, achieving the clamping and fixing effect of the ultrasonic flat plate 4, and finally ensuring that the ultrasonic flat plate 4 is always fixed in the predetermined position during the entire puncture process, providing clear and stable ultrasonic images for medical staff continuously, avoiding puncture failure caused by shaking and displacement of the ultrasonic flat plate 4, and greatly improving the accuracy of puncture operation. By placing the patient's arm on the puncture operation table 6 and then using the ultrasonic probe to scan the patient's arteriovenous fistula site, the ultrasonic probe as a key tool to obtain the internal information of the blood vessel can penetrate the skin and shallow tissue using high-frequency ultrasonic waves, and accurately capture the subtle features of the arteriovenous fistula, such as thick arterial wall with obvious pulsatility, relatively thin venous wall, thick diameter and no pulsatility, etc. These features are clearly presented on the image of the ultrasonic flat plate 4, providing an intuitive basis for medical staff to accurately distinguish between arteries and veins and judge the health status of the blood vessels. After determining the puncture point, mark it on the skin, place the ultrasonic probe vertically or obliquely near the puncture point, and make the needle path of the puncture needle visible on the ultrasonic image. During puncture, the operator can observe the ultrasonic image while slowly inserting the needle, making the position and direction of the puncture needle clear at a glance, and the operator can accurately control the puncture process. Once the puncture needle enters the blood vessel cavity, the position of the needle core in the blood vessel can be seen through the ultrasonic image. The high definition and real-time updating characteristics of the ultrasonic image ensure that the operator can know the accurate state of the puncture needle in the first time. At the same time, the success of puncture can be further confirmed by the backflow of blood. The backflow of blood directly indicates that the puncture needle has successfully entered the blood vessel, opening up the channel for subsequent treatment. By observing the ultrasonic flat plate 4 in detail throughout the process, medical staff can accurately control the puncture process, not only improving the success rate of puncture, but also allowing patients to have a significant improvement in comfort during puncture due to the accuracy, smoothness and comfortable limb placement of the operation.
[0032] Referring to Figure 1 and Figure 3 , the lifting assembly comprises a mounting sleeve 14 which provides a stable mounting space for a rotating sleeve 15 and a connecting rod 17. The side wall of the mounting sleeve 14 is fixedly connected to the upper end of the sleeve rod 2, so that the whole lifting assembly is closely combined with the sleeve rod 2. The rotating sleeve 15 is rotatably connected inside the mounting sleeve 14, and the side wall of the lifting rod 3 is threadedly connected inside the rotating sleeve 15. This threaded connection is based on the principle of mechanical transmission, which can convert rotation into precise linear motion. The side wall of the lifting rod 3 is slidably connected inside the sleeve rod 2 to provide guidance for the lifting rod 3. The connecting rod 17 is rotatably connected inside the mounting sleeve 14, and one end of the connecting rod 17 is fixedly connected with a handle 19 for convenient manual operation by medical staff. The side wall of the connecting rod 17 is fixedly connected with a worm 18, which is engaged with a worm gear 16 fixedly connected to the side wall of the rotating sleeve 15, forming a worm gear 16 worm 18 transmission structure. This makes the lifting process of the lifting rod 3 more stable and powerful, avoiding the shaking and jamming of the puncture table due to excessive lifting speed or insufficient power, and the worm gear 16 worm 18 transmission also has a self-locking function. When the handle 19 is stopped rotating, it can effectively prevent the lifting rod 3 from accidentally lifting due to external force, ensuring the stability of the puncture table height during operation and protecting the safety of patients and medical staff, and providing reliable equipment support for the puncture work of difficult internal arteriovenous fistula.
[0033] When the ultrasonic flat plate 4 is installed, the height adjustment of the puncture operation table 6 is entered. At this time, the height adjustment mechanism needs to be started by rotating the handle 19. When the handle 19 is rotated, the connecting rod 17 is driven to rotate. The connecting rod 17 stably transmits the rotary motion of the handle 19. With the rotation of the connecting rod 17, the worm 18 starts to rotate, which drives the worm gear 16 to rotate through the engagement relationship. The worm gear 16 and the worm 18 work together to efficiently convert the rotary power of the worm 18 into the rotational energy of the worm gear 16, providing driving force for the rotating sleeve 15 fixedly connected thereto. Then the rotating sleeve 15 rotates, and the internal threaded structure of the rotating sleeve 15 perfectly matches the threads on the side wall of the lifting rod 3. When the rotating sleeve 15 rotates, the lifting rod 3 moves through the threaded connection. The lifting rod 3 slides in the sleeve rod 2 along the predetermined vertical direction. The sleeve rod 2 provides a straight guide rail for the lifting rod 3. The two work together to strictly limit the movement direction of the lifting rod 3, so that it can only move vertically, ensuring the accuracy of height adjustment. In this way, the height of the puncture operation table 6 can be adjusted according to the patient's condition. Whether it is an elderly patient with weak limbs who is difficult to lift, a child patient with small stature who needs a lower operation plane, or a patient who needs to adjust the body position precisely due to special conditions, the puncture operation table 6 can be accurately adjusted to the height that is most comfortable and convenient for the patient to place his arms, reducing the risk of tension and movement caused by improper limb placement, creating good conditions for subsequent puncture operation, and ensuring the accuracy and success rate of puncture.
[0034] Working principle: when using the device, first, put one side of the ultrasonic flat plate 4 on the clamp plate 8, then pull up the clamp plate 11, make the sliding frame 10 slide up in the sliding groove 9, and then extrude and shrink the spring 13, when the clamp plate 11 exceeds the height of the ultrasonic flat plate 4, the side wall of the ultrasonic flat plate 4 is attached to the mounting plate 7, then the sliding frame 10 is driven to slide down by the tension of the spring 13, and then the clamp plate 11 is attached to the other side of the ultrasonic flat plate 4, so as to achieve the clamping and fixing effect of the ultrasonic flat plate 4, when the ultrasonic flat plate 4 is installed, rotate the handle 19 to drive the connecting rod 17 to rotate, so that the worm 18 starts to rotate, drives the worm wheel 16 to rotate through the meshing relationship, and then makes the rotating sleeve 15 rotate, and moves the lifting rod 3 through the threaded connection, so as to adjust the height of the puncture operation table 6 according to the state of the patient, when the appropriate position is adjusted, the patient's arm is placed on the puncture operation table 6, and then the ultrasonic probe is used to scan the patient's arteriovenous fistula site, the typical features of the artery and vein can be seen on the image of the ultrasonic flat plate 4, when the puncture point is determined, mark on the skin. Place the ultrasonic probe vertically or obliquely near the puncture point, so that the needle insertion path of the puncture needle can be displayed on the ultrasonic image, when puncturing, the operator can observe the ultrasonic image while slowly inserting the needle, once the puncture needle enters the blood vessel cavity, the position of the needle core in the blood vessel can be seen through the ultrasonic image. At the same time, the puncture success can be further confirmed by the backflow of blood, the puncture success rate is improved by observing the ultrasonic flat plate 4, and the comfort of the patient during puncture is improved.
[0035] Finally, it should be pointed out that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. An integrated ultrasound-guided puncture table for difficult arteriovenous fistula, comprising a base plate (1), characterized in that: The bottom plate (1) upper surface is fixedly connected with a sleeve rod (2), the sleeve rod (2) is connected with a lifting rod (3) through a lifting assembly, the lifting rod (3) upper end is provided with a clamping assembly for fixing an ultrasonic flat plate (4), the sleeve rod (2) side wall is fixedly connected with a storage basket (5), the lifting rod (3) side wall is fixedly connected with a puncture operation table (6); The clamping assembly includes a mounting plate (7), the mounting plate (7) is fixedly connected on the lifting rod (3) upper end, the mounting plate (7) side wall is fixedly connected with a clamping plate one (8), the mounting plate (7) is internally provided with a sliding slot (9), the mounting plate (7) is internally connected with a sliding frame (10), the sliding frame (10) side wall is fixedly connected with a clamping plate two (11), the sliding frame (10) side wall is connected in the sliding slot (9), the mounting plate (7) is internally fixedly connected with a fixed block (12), the mounting plate (7) is internally provided with a spring (13).
2. The integrated ultrasound-guided puncture table for difficult arteriovenous internal fistula according to claim 1, characterized in that: The lifting assembly includes a mounting sleeve (14), the mounting sleeve (14) is rotatably connected with a rotating sleeve (15), the lifting rod (3) side wall is screwedly connected in the rotating sleeve (15).
3. The integrated ultrasound-guided puncture table for difficult arteriovenous internal fistula according to claim 1, characterized in that: One end of the spring (13) is fixedly connected in the sliding frame (10), the other end of the spring (13) is fixedly connected on the fixed block (12) side wall.
4. The ultrasound-guided integrated puncture table for difficult arteriovenous internal fistula according to claim 2, characterized in that: The lifting rod (3) side wall is slidably connected in the sleeve rod (2), the mounting sleeve (14) side wall is fixedly connected on the sleeve rod (2) upper end.
5. The integrated ultrasound-guided puncture table for difficult arteriovenous internal fistula according to claim 4, characterized in that: The mounting sleeve (14) is rotatably connected with a connecting rod (17), one end of the connecting rod (17) is fixedly connected with a handle (19).
6. The ultrasound-guided integrated puncture table for a difficult arteriovenous internal fistula according to claim 5, characterized in that: The connecting rod (17) side wall is fixedly connected with a worm (18), the rotating sleeve (15) side wall is fixedly connected with a worm wheel (16).
7. The ultrasound-guided integrated puncture table for a difficult arteriovenous internal fistula according to claim 6, characterized in that: The worm wheel (16) is engaged with the worm (18).