A patient arm rest device for cardiovascular care
By designing a multi-stage transmission structure and a fixing mechanism, the problem of angle instability in the arm rest device during cardiovascular care has been solved, achieving precise adjustment and stability, and improving the accuracy of nursing operations and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 32235
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-26
AI Technical Summary
In current cardiovascular care, arm rest devices are difficult to control precisely in terms of height and position, leading to unstable operation, increasing the workload of medical staff and the discomfort of patients.
The angle adjustment mechanism, which employs a multi-stage transmission structure including worm gear and helical gear meshing, combined with a fixing mechanism, enables precise angle adjustment and self-locking of the support plate, ensuring the stability of the patient's arm during various nursing procedures.
It achieves precise angle adjustment and stability of the arm rest device, improving the accuracy and success rate of nursing operations and reducing patient discomfort caused by angle changes.
Smart Images
Figure CN224269669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardiovascular nursing technology, and in particular to a patient arm rest device for cardiovascular nursing. Background Technology
[0002] In cardiovascular care, healthcare professionals need to perform a variety of delicate procedures, such as venipuncture, arterial blood sampling, and placement of electrocardiogram monitoring electrodes. Arm rest devices provide a stable operating platform for these procedures, enabling healthcare professionals to more accurately locate the surgical site.
[0003] In actual nursing care, different cardiovascular nursing procedures, such as venipuncture, arterial blood sampling, and electrocardiogram monitoring, have different requirements for the position and angle of the patient's arm. Usually, a method is to add a pad under the arm rest or at the arm placement site to tilt the patient's arm upward, such as using medical sponge pads of different thicknesses or wedge-shaped soft rubber pads. However, this method has obvious drawbacks. The height and position of the pad are difficult to control precisely, which can easily lead to deviations. Moreover, the pad may shift due to slight movements of the patient during the nursing process, affecting the fixation and tilting effect of the arm. It also increases the difficulty and workload of medical staff and cannot meet the needs of precision nursing. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a patient arm support device for cardiovascular care.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A patient arm rest device for cardiovascular care includes a base, a connecting box fixedly connected to the top of the base, rotating rods rotatably connected to both sides of the inner wall of the connecting box, an angle adjustment mechanism rotatably connected to the bottom of the inner wall of the connecting box, and a fixing mechanism fixedly connected to one side of the base.
[0007] As a further improvement of this utility model: a support plate is sleeved on the outer wall of the rotating rod, and a fixing strap is fixedly connected to both sides of the support plate.
[0008] As a further embodiment of this utility model: the angle adjustment mechanism includes a rocker arm, a chuck, a bearing seat, a worm gear, a worm wheel, a helical gear one, and a helical gear two, and the chuck bearing seat is fixedly connected to the top of the base.
[0009] As a further embodiment of this utility model: the worm gear is inserted into the inner wall of the bearing seat, one side of the rocker arm is fixedly connected to one end of the worm gear, and the chuck is fixedly connected to the outer wall of the rocker arm.
[0010] As a further embodiment of this utility model: the worm gear is rotatably connected to the top of the base, and the worm gear meshes with the worm. Helical gear one is fixedly connected to the top of the worm gear, and helical gear two is sleeved on the outer wall of the rotating rod.
[0011] As a further embodiment of this utility model: the fixing mechanism includes a bracket, a cylinder, a pull rod, a fixing rod and a spring, and the bracket is fixedly connected to one side of the base.
[0012] As a further embodiment of this utility model: the cylinder is fixedly connected to one side of the bracket, the fixing rod is inserted into the inside of the pull rod, the pull rod is fixedly connected to one side of the fixing rod, and the spring is fixedly connected to the bottom of the inner wall of the cylinder.
[0013] Compared with the prior art, this utility model provides a patient arm rest device for cardiovascular care, which has the following beneficial effects:
[0014] 1. This is a patient arm support device for cardiovascular care. First, the patient's arm is passed through the bottom of the fixing strap to fix the arm. When the angle of the patient's arm needs to be adjusted, the angle adjustment mechanism causes the rotating rod to rotate on both sides of the inner wall of the connecting box, thereby adjusting the angle of the support plate that is fitted with it. After adjusting to a suitable angle, the fixing mechanism fixes the current angle. Thus, medical staff can adjust the most suitable angle of the support plate according to different nursing operation requirements. For cardiovascular patients, when the arm is at a certain upward tilt angle, venous blood can flow back to the heart more smoothly, reducing swelling of the hand and arm.
[0015] 2. This cardiovascular nursing patient arm support device, when the angle of the patient's arm needs to be adjusted, allows medical staff to rotate a rocker arm, causing the chuck to rotate synchronously and driving a worm gear to rotate within the bearing seat. Since the worm gear meshes with a worm wheel, the rotational motion of the worm gear is transmitted to the worm wheel, causing the worm wheel to rotate at the top of the base. As the worm wheel rotates, a helical gear fixed to the top of the worm wheel also rotates synchronously. Helical gear one meshes with helical gear two sleeved on the outer wall of the rotating rod, thereby driving the rotating rod to rotate on both sides of the connecting box. The rotation of the rotating rod ultimately drives the support plate to adjust its angle until it reaches the appropriate angle. Thus, the multi-stage transmission structure can precisely control the angle change of the support plate, meeting the precise requirements for the patient's arm placement angle during vascular nursing, helping to improve the accuracy and success rate of nursing operations. Furthermore, because the worm gear transmission has a self-locking characteristic, after adjustment to the required angle, even under certain external force interference, the position of the support plate can remain stable, ensuring the safety and stability of the patient's arm support.
[0016] 3. This cardiovascular nursing patient arm support device, after the angle of the support plate is adjusted, the medical staff pulls the lever, which moves the fixing rod inside the cylinder. At this time, the spring is compressed. When aligned with the opening of the chuck, the lever is released, allowing the fixing rod to enter the opening of the chuck. Conversely, when the position of the support plate needs to be adjusted, the lever is pulled and rotated along the guide groove on the outer wall of the cylinder. Finally, the lever is released, so that the fixing rod does not contact the chuck and is fixed. This effectively avoids accidental changes in the angle of the patient's arm due to accidental activation of the lever, ensures the stability of the patient's arm during the support process, and reduces the risk of discomfort or impact on the nursing effect caused by unnecessary angle changes.
[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0018] Figure 1 This is a front view of a patient arm rest device for cardiovascular care proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the angle adjustment mechanism in a cardiovascular nursing patient arm rest device proposed in this utility model;
[0020] Figure 3 An exploded view of the angle adjustment mechanism in a cardiovascular care patient arm rest device proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the fixing mechanism in a cardiovascular nursing patient arm rest device proposed in this utility model;
[0022] Figure 5 This is an exploded view of the fixation mechanism in a patient arm rest device for cardiovascular care proposed in this utility model.
[0023] In the diagram: 1. Base; 2. Connecting box; 3. Rotating rod; 4. Shelf; 5. Fixing strap; 6. Angle adjustment mechanism; 7. Fixing mechanism; 601. Rocker arm; 602. Chuck; 603. Bearing seat; 604. Worm gear; 605. Worm wheel; 606. Helical gear one; 607. Helical gear two; 701. Bracket; 702. Cylinder; 703. Pull rod; 704. Fixing rod; 705. Spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] A patient arm rest device for cardiovascular care, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a base 1, a connecting box 2 fixedly connected to the top of the base 1, rotating rods 3 rotatably connected to both sides of the inner wall of the connecting box 2, a shelf 4 sleeved on the outer wall of the rotating rod 3, fixing straps 5 fixedly connected to both sides of the shelf 4, an angle adjustment mechanism 6 rotatably connected to the bottom of the inner wall of the connecting box 2, and a fixing mechanism 7 fixedly connected to one side of the base 1.
[0028] First, the patient's arm is secured by passing it through the bottom of the fixation strap 5. When the angle of the patient's arm needs to be adjusted, the angle adjustment mechanism 6 causes the rotating rod 3 to rotate on both sides of the inner wall of the connecting box 2, thereby adjusting the angle of the shelf 4 that is fitted with it. After adjusting to a suitable angle, the fixing mechanism 7 fixes the current angle. In this way, medical staff can adjust the shelf 4 to the most suitable angle according to different nursing operation requirements. For cardiovascular patients, when the arm is at a certain upward tilt angle, venous blood can flow back to the heart more smoothly, reducing swelling of the hand and arm.
[0029] In order to adjust the angle of shelf 4, such as Figure 2 and Figure 3As shown, the angle adjustment mechanism 6 includes a rocker arm 601, a chuck 602, a bearing seat 603, a worm gear 604, a worm wheel 605, a first helical gear 606, and a second helical gear 607. The chuck 602 and bearing seat 603 are fixedly connected to the top of the base 1. The worm gear 604 is inserted into the inner wall of the bearing seat 603. One side of the rocker arm 601 is fixedly connected to one end of the worm gear 604. The chuck 602 is fixedly connected to the outer wall of the rocker arm 601. The worm wheel 605 is rotatably connected to the top of the base 1 and meshes with the worm gear 604. The first helical gear 606 is fixedly connected to the top of the worm wheel 605. The second helical gear 607 is sleeved on the outer wall of the rotating rod 3.
[0030] When the angle of the patient's arm needs to be adjusted, the medical staff turns the rocker arm 601, and the chuck 602 rotates synchronously, driving the worm gear 604 to rotate within the bearing seat 603. Since the worm gear 604 meshes with the worm wheel 605, the rotational motion of the worm gear 604 is transmitted to the worm wheel 605, causing the worm wheel 605 to rotate on the top of the base 1.
[0031] As the worm gear 605 rotates, the helical gear 606 fixed on the top of the worm gear 605 also rotates synchronously. The helical gear 606 meshes with the helical gear 607 sleeved on the outer wall of the rotating rod 3, thereby driving the rotating rod 3 to rotate on both sides of the connecting box 2.
[0032] The rotation of the rotating rod 3 ultimately drives the shelf 4 to adjust its angle until it reaches the appropriate angle. Thus, the multi-stage transmission structure can precisely control the angle change of the shelf 4, meeting the precise requirements for the placement angle of the patient's arm during vascular care. This helps to improve the accuracy and success rate of nursing operations. Furthermore, because the worm gear 604 and worm wheel 605 transmission have self-locking characteristics, after adjusting to the required angle, even if subjected to certain external forces, the position of the shelf 4 can remain stable, ensuring the safety and stability of the patient's arm placement.
[0033] To prevent accidental activation of the joystick 601 from causing changes in the angle of the patient's arm, such as Figure 4 and Figure 5 As shown, the fixing mechanism 7 includes a bracket 701, a cylinder 702, a pull rod 703, a fixing rod 704, and a spring 705. The bracket 701 is fixedly connected to one side of the base 1, the cylinder 702 is fixedly connected to one side of the bracket 701, the fixing rod 704 is inserted into the pull rod 703, the pull rod 703 is fixedly connected to one side of the fixing rod 704, the spring 705 is fixedly connected to the bottom of the inner wall of the cylinder 702, and a guide groove is provided on the outer wall of the cylinder 702. The diameter of the fixing rod 704 is slightly smaller than the diameter of the opening of the chuck 602.
[0034] After adjusting the angle of the shelf 4, the medical staff pulls the lever 703. The lever 703 moves the fixing rod 704 inside the cylinder 702. At this time, the spring 705 is compressed. When it is aligned with the opening of the chuck 602, the lever 703 is released, allowing the fixing rod 704 to enter the opening of the chuck 602. Conversely, when it is necessary to adjust the position of the shelf 4, the lever 703 is pulled and rotated along the guide groove on the outer wall of the cylinder 702. Finally, the lever 703 is released, so that the fixing rod 704 does not contact the chuck 602 and is fixed. This effectively avoids accidental changes in the angle of the patient's arm due to accidental activation of the rocker arm 601, ensuring the stability of the patient's arm during the placement process and reducing the risk of discomfort or impact on the nursing effect caused by unnecessary angle changes.
[0035] Working principle: First, the patient's arm is secured by passing it through the bottom of the fixing strap 5. When the angle of the patient's arm needs to be adjusted, the angle adjustment mechanism 6 causes the rotating rod 3 to rotate on both sides of the inner wall of the connecting box 2, thereby adjusting the angle of the shelf 4 that is fitted with it. Once the appropriate angle is reached, the fixing mechanism 7 fixes the current angle.
[0036] When the angle of the patient's arm needs to be adjusted, the medical staff turns the rocker arm 601, and the chuck 602 rotates synchronously, driving the worm gear 604 to rotate within the bearing seat 603. Since the worm gear 604 meshes with the worm wheel 605, the rotational motion of the worm gear 604 is transmitted to the worm wheel 605, causing the worm wheel 605 to rotate on the top of the base 1.
[0037] As the worm gear 605 rotates, the helical gear 606 fixed on the top of the worm gear 605 also rotates synchronously. The helical gear 606 meshes with the helical gear 607 sleeved on the outer wall of the rotating rod 3, thereby driving the rotating rod 3 to rotate on both sides of the connecting box 2.
[0038] The rotation of the rotating rod 3 eventually causes the shelf 4 to adjust its angle until the shelf 4 reaches the appropriate angle.
[0039] After adjusting the angle of the shelf 4, the medical staff pulls the lever 703, which drives the fixing rod 704 to move inside the cylinder 702. At this time, the spring 705 is compressed. When it is aligned with the opening of the chuck 602, the lever 703 is released, so that the fixing rod 704 enters the opening of the chuck 602. Conversely, when it is necessary to adjust the position of the shelf 4, the lever 703 is pulled and rotated along the guide groove on the outer wall of the cylinder 702. Finally, the lever 703 is released so that the fixing rod 704 does not contact the chuck 602 and is fixed.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A patient arm rest device for cardiovascular care, comprising a base (1), characterized in that, The base (1) is fixedly connected to a connecting box (2) at the top, and rotating rods (3) are rotatably connected to both sides of the inner wall of the connecting box (2). An angle adjustment mechanism (6) is rotatably connected to the bottom of the inner wall of the connecting box (2), and a fixing mechanism (7) is fixedly connected to one side of the base (1).
2. The patient arm rest device for cardiovascular care according to claim 1, characterized in that, The outer wall of the rotating rod (3) is fitted with a support plate (4), and the two sides of the support plate (4) are fixedly connected with fixing straps (5).
3. The patient arm rest device for cardiovascular care according to claim 1, characterized in that, The angle adjustment mechanism (6) includes a rocker arm (601), a chuck (602), a bearing seat (603), a worm (604), a worm wheel (605), a first helical gear (606) and a second helical gear (607), and the chuck (602) and the bearing seat (603) are fixedly connected to the top of the base (1).
4. A patient arm rest device for cardiovascular care according to claim 3, characterized in that, The worm gear (604) is inserted into the inner wall of the bearing seat (603), one side of the rocker arm (601) is fixedly connected to one end of the worm gear (604), and the chuck (602) is fixedly connected to the outer wall of the rocker arm (601).
5. A patient arm rest device for cardiovascular care according to claim 3, characterized in that, The worm gear (605) is rotatably connected to the top of the base (1), and the worm gear (605) meshes with the worm (604). Helical gear one (606) is fixedly connected to the top of the worm gear (605), and helical gear two (607) is sleeved on the outer wall of the rotating rod (3).
6. A patient arm rest device for cardiovascular care according to claim 1, characterized in that, The fixing mechanism (7) includes a bracket (701), a cylinder (702), a pull rod (703), a fixing rod (704), and a spring (705), and the bracket (701) is fixedly connected to one side of the base (1).
7. A patient arm rest device for cardiovascular care according to claim 6, characterized in that, The cylinder (702) is fixedly connected to one side of the bracket (701), the fixing rod (704) is inserted into the pull rod (703), the pull rod (703) is fixedly connected to one side of the fixing rod (704), and the spring (705) is fixedly connected to the bottom of the inner wall of the cylinder (702).