Self-control type infusion device stabilizing mechanism suitable for ship swing environment
By using a self-controlled infusion device stabilization mechanism with telescopic support rods and stabilizing components, the problem of unstable infusion under ship swaying was solved, realizing automatic stabilization and flow rate control of the infusion device, and improving the safety and comfort of the infusion process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE NAVAL MEDICAL UNIV OF PLA
- Filing Date
- 2026-04-03
- Publication Date
- 2026-06-05
AI Technical Summary
Existing conventional tape fixation cannot effectively overcome the problem of infusion instability under varying degrees of swaying, leading to risks such as infusion instability, tubing detachment, and drug leakage, which affect patient safety.
The infusion device adopts a self-controlled stabilization mechanism, including a telescopic main support rod, a flip-up support foot, a folding support link, a top mounting frame, and stabilization components. Combined with fluororubber anti-slip components, tungsten alloy counterweights, annular rubber buffer pads, and spring dampers, it achieves automatic stabilization and flow rate control of the infusion device in swaying environments.
In shipboard rolling environments, it significantly improves the stability of infusion devices, reduces the risk of drug leakage, ensures the safety and comfort of the infusion process, and enables precise control of flow rate and real-time monitoring of remaining drug volume.
Smart Images

Figure CN122141058A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of marine environmental fluid infusion stabilization technology, and in particular to a self-controlled fluid infusion device stabilization mechanism suitable for marine rolling environments. Background Technology
[0002] The swaying environment of a ship presents significant challenges to intravenous infusion procedures, including infusion instability, tubing dislodgement, and drug leakage. These can lead to a range of complications and even endanger patient safety.
[0003] In a fluctuating environment, unstable infusion can lead to an increased incidence of common complications, including: the risk of circulatory overload (such as heart failure and pulmonary edema) and air embolism due to the difficulty in precisely controlling the drip rate; the easy displacement of the puncture needle or indwelling catheter, which can puncture blood vessels and cause irritating or hypertonic drugs to seep into the subcutaneous tissue, causing pain, swelling, and in severe cases, tissue necrosis; repeated punctures and increased mechanical friction of the catheter against the blood vessel wall can significantly increase the incidence of phlebitis; and the dislodgement, blockage, or backflow of the infusion tubing can lead to treatment interruption and may delay rescue in emergency situations.
[0004] Currently, the most basic and essential approach to this situation is to use conventional adhesive tape for fixation. Elastic mesh bandages and splints are typically used for enhanced fixation to prevent catheter displacement. While this method is low-cost, easy to implement, and effective against moderate to mild swaying, its effectiveness is limited under severe swaying, and excessive fixation may affect patient comfort or local blood circulation. Furthermore, it still cannot overcome the issue of unstable infusion. Summary of the Invention
[0005] The technical problem that this invention aims to solve is that conventional adhesive tape fixation cannot overcome the instability of infusion under varying degrees of swaying.
[0006] The technical solution adopted by the present invention to solve its technical problem is: a stabilizing mechanism for a self-controlled infusion device suitable for ship swaying environment, including a telescopic main support rod, a plurality of flip-out support feet are movably hinged to the lower end of the telescopic main support rod, a folding support connecting rod is provided between the flip-out support feet and the telescopic main support rod, and a top mounting frame for suspending the infusion device is movably mounted on the top mounting frame, and a stabilizing component for improving the stability of the infusion device in swaying environment is movably mounted on the top mounting frame.
[0007] The bottom of the flip support foot is fixed with a bottom anti-slip component to improve the bottom anti-slip performance. The bottom anti-slip component is made of fluororubber and has a diamond-shaped anti-slip pattern on its surface. The depth of the diamond-shaped anti-slip pattern is 0.8mm to 1.2mm. The bottom anti-slip component and the flip support foot are detachably fixedly connected by bolts.
[0008] The folding support link is a folding double link structure, and an elastic extension limiting block is slidably fitted at the middle connecting end of the folding support link.
[0009] The telescopic main support rod includes a main support tube with a flip-up support foot installed on the outside and a secondary extension tube that is slidably inserted into the upper opening of the main support tube. The outer side of the main support tube is threaded with a locking bolt for locking the position of the secondary extension tube.
[0010] The top end of the secondary extension tube is axially fixed with a top mounting shaft, and the stabilizing component is movably assembled with the top end of the secondary extension tube by being fitted onto the top mounting shaft.
[0011] The stabilizing assembly includes a T-shaped top mounting frame movably mounted on the top mounting shaft, lateral suspension frames movably mounted on the lower ends of both sides of the top mounting frame, a built-in stabilizing component movably mounted on the lower ends of the lateral suspension frames, and lateral limiting frames and bottom limiting frames respectively located on the side walls of the top mounting frame.
[0012] The built-in stabilizing components include a counterweight made of high-density tungsten alloy, an annular rubber buffer pad, and a spring damper.
[0013] The counterweight is assembled to the lower end of the infusion device by a snap-fit method. The annular rubber buffer pad is fixed on the inner wall of the lateral limiting frame and surrounds the outside of the counterweight. The spring damper connects the counterweight to the lateral limiting frame and the counterweight to the bottom limiting frame, respectively. The elastic coefficient of the spring damper is 5N / mm to 8N / mm.
[0014] The mounting end of the lateral suspension frame is equipped with a weighing unit for monitoring the remaining volume of the infusion solution in the infusion device.
[0015] The top assembly frame is equipped with a self-weight extrusion flow stabilizing device that slides on both sides of the lateral suspension frame. The self-weight extrusion flow stabilizing device includes an internal lifting frame that moves through the lifting hole in the top assembly frame, a flip assembly frame that is hinged to both sides of the internal lifting frame, a detachable counterweight extrusion roller installed inside the flip assembly frame, a fixed guide wheel that is fixedly installed on the upper end of the top assembly frame, and a movable speed regulating wheel that is movably assembled on the upper end of the top assembly frame.
[0016] The beneficial effects of this invention are: (1) A self-controlled infusion device stabilization mechanism for ship swaying environment of the present invention has a top mounting frame for suspending the infusion device movably mounted at the top of the telescopic main support rod, and a stabilizing component for improving the stability of the infusion device in swaying environment is movably mounted on the top mounting frame. It can automatically reduce the swing amplitude of the infusion device in ship swaying environment and improve the stability of the entire infusion process. (2) Multiple flip-out support feet are movably hinged at the lower end of the telescopic main support rod. Folding support rods are provided between the flip-out support feet and the telescopic support rod, which can facilitate folding and unfolding, and improve the support and stability of the bottom. (3) It adopts a retractable structure design, which makes it usable in different environments and convenient for storage and carrying; (4) The counterweight adopts a split structure design and is assembled at the lower end of the infusion device by snap-fit, which is convenient for loading and unloading. At the same time, the counterweight is connected to the side limit frame and the bottom limit frame by spring dampers respectively, which can ensure its stability in the X and Y axis directions and the stability range is more comprehensive. (5) By fixing the annular rubber buffer pad to the inner wall of the lateral limiting frame, omnidirectional impact can be effectively avoided and safety can be improved. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the stabilizing component in this invention.
[0020] Figure 3 This is a schematic diagram of the folding support link in this invention.
[0021] Figure 4 This is a schematic diagram of the assembly end of the bottom anti-slip component in this invention.
[0022] In the diagram: 1. Telescopic main support rod; 101. Main support tube; 102. Secondary extension tube; 103. Locking bolt; 104. Top mounting shaft; 2. Tilting support foot; 3. Folding support connecting rod; 31. Elastic extension limiting block; 5. Stabilizing component; 51. Top assembly frame; 52. Lateral suspension frame; 521. Weighing unit; 53. Built-in stabilizing component; 531. Counterweight block; 532. Annular rubber buffer pad; 533. Spring damper; 54. Lateral limiting frame; 55. Bottom limiting frame; 56. Self-weight extrusion flow stabilizing device; 561. Internal lifting frame; 562. Tilting assembly frame; 563. Detachable counterweight extrusion roller; 564. Fixed guide wheel; 565. Movable speed regulating wheel; 6. Bottom anti-slip component. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0025] Figure 1 , Figure 2 , Figure 3 and Figure 4 The illustrated self-controlled infusion device stabilization mechanism for ship swaying environments includes a telescopic main support rod 1, with a plurality of flip-up support legs 2 movably hinged to the lower end of the telescopic main support rod 1. Folding support connecting rods 3 are provided between the flip-up support legs 2 and the telescopic support rod 1. A stabilizing component 5 is movably assembled at the top of the telescopic main support rod 1 for suspending the infusion device and improving the stability of the infusion device in swaying environments.
[0026] To improve the stability of the bottom support, the bottom of the flip support 2 is fixed with a bottom anti-slip component 6 to improve the bottom anti-slip performance. The bottom anti-slip component 6 is made of fluororubber and has a diamond anti-slip pattern on its surface. The depth of the diamond anti-slip pattern is 0.8-1.2mm. The bottom anti-slip component 6 and the flip support 2 are detachably connected by bolts.
[0027] To accommodate the folding and flipping limit, the folding support link 3 is a folding double link structure, and the central connecting end of the folding support link 3 is slidably fitted with an elastic extension limit block 31.
[0028] The folding support link 3 forms a triangular support mechanism with the telescopic main support rod 1 and the flipping support foot 2 by bending outward. Then, the elastic extension limiting block 31 on a single link is inserted into the limiting groove on another single link to complete the limiting. For storage, simply squeeze the elastic extension limiting block 31 in the opposite direction to separate the elastic extension limiting block 31 from the limiting groove. This makes it easy to control the folding support link 3 to retract, and then drive the flipping support foot 2 to flip upward and fit against the outside of the telescopic main support rod 1.
[0029] To facilitate telescopic adjustment, the telescopic main support rod 1 includes a main support tube 101 with a flip-up support foot 2 mounted on the outside and a secondary extension tube 102 that is slidably inserted into the upper opening of the main support tube 101. A locking bolt 103 for locking the position of the secondary extension tube 102 is threaded on the outer side of the main support tube 101.
[0030] To facilitate the top assembly, a top mounting shaft 104 is axially fixed at the top end of the secondary extension tube 102, and the stabilizing component 5 is movably assembled with the top end of the secondary extension tube 102 by being sleeved on the top mounting shaft 104.
[0031] To facilitate top mounting and limiting, the stabilizing assembly 5 includes a T-shaped top mounting frame 51 that is movably mounted on the top mounting shaft 104, lateral suspension frames 52 that are movably mounted on the lower ends of both sides of the top mounting frame 51, a built-in stabilizing assembly 53 that is movably mounted on the lower ends of the lateral suspension frames 52, a lateral limiting frame 54 and a bottom limiting frame 55 located on the side wall of the top mounting frame 51.
[0032] The infusion bag of the infusion device is fitted onto the hook of the lateral suspension frame 52 through the top mounting hole, and then installed on the bottom side of the infusion bag of the infusion device through the built-in stabilizing component 53.
[0033] To improve stability, the built-in stabilizing components 53 include a high-density tungsten alloy counterweight 531, an annular rubber buffer pad 532, and a spring damper 533.
[0034] To facilitate loading and unloading and improve stability, the counterweight 531 is snapped onto the lower end of the infusion bag. The annular rubber buffer pad 532 is fixed to the inner wall of the lateral limiting frame 54 and surrounds the outside of the counterweight 531. The spring damper 533 connects the counterweight 531 to the lateral limiting frame 54 and the counterweight 531 to the bottom limiting frame 55, respectively. The elastic coefficient of the spring damper 533 is 5-8 N / mm.
[0035] The counterweight 531 is a split-type structure, which is snapped and fixed to the lower end of the infusion bag from both sides. A circular through hole is opened inside the annular rubber buffer pad 532 to facilitate the passage of the spring damper 533.
[0036] The counterweight 531 weighs 300-400g and is located directly below the infusion bag. It achieves an elastic displacement of ±5mm in the X and Y axes through a spring damper to counteract the inertial force generated by the ship's swaying. The annular rubber buffer pad is made of fluororubber with a Shore hardness of 60-70 to prevent the counterweight 531 from colliding with the lateral limit frame 54 and causing noise and damage.
[0037] In order to monitor the remaining capacity inside the infusion bag in real time, a weighing unit 521 is provided at the assembly end of the lateral suspension frame 52.
[0038] To ensure a stable flow rate even under strong swaying conditions, a self-weight extrusion flow stabilizing device 56 is slidably mounted inside the top mounting frame 51 on both sides of the lateral suspension frame 52. The self-weight extrusion flow stabilizing device 56 includes an internal lifting frame 561 that moves through the lifting hole inside the top mounting frame 51, a flipping mounting frame 562 hinged to both sides of the internal lifting frame 561, a detachable counterweight extrusion roller 563 installed inside the flipping mounting frame 562, a fixed guide wheel 564 installed at the upper end of the top mounting frame 51, and a movable speed regulating wheel 565 that moves at the upper end of the top mounting frame 51.
[0039] The top mounting frame 51 is equipped with an internal screw for controlling the movable speed regulating wheel 565. People can rotate the internal screw by using a control block located at one end of the internal screw, thereby adjusting the distance between the movable speed regulating wheel 565 and the fixed guide wheel 564, thereby adjusting the surface friction of the internal lifting frame 561, and thus freely adjusting the descent rate of the internal lifting frame 561.
[0040] To ensure the descent rate, a top counterweight needs to be installed on the top of the internal lifting frame 561 to facilitate stable control of the sliding descent of the internal lifting frame 561. At the same time as the descent, the infusion bag is squeezed from both sides by the flip assembly frames 562 on both sides and the internal counterweight squeezing rollers 563, thereby stabilizing the infusion bag infusion.
[0041] Work process Support structure unfolding: The operator reverses the pressure of the elastic extension limiting block 31 at the central connecting end of the folding support link 3, causing it to disengage from the limiting groove of the other link. Then, the operator flips the support foot 2 outward, causing the folding support link 3 to unfold synchronously until the flipping support foot 2 and the telescopic main support rod 1 form a stable triangular support. At this time, the elastic extension limiting block 31 automatically springs back and inserts into the limiting groove, completing the support locking; ensuring that the bottom anti-slip component 6 is completely in contact with the placement surface, without any risk of suspension or sliding.
[0042] Height adjustment: Loosen the locking bolt 103 on the main support tube 101. Depending on the infusion scenario, such as the patient's position and the height of the chamber, pull the auxiliary extension tube 102 upwards to adjust to a suitable height. Then, tighten the locking bolt 103 clockwise. The position is locked by the pressure between the end of the bolt and the surface of the auxiliary extension tube 102, ensuring that the top mounting frame 51 is at a height that facilitates the suspension of the infusion device.
[0043] Assembly of the infusion device: Insert the infusion bag of the infusion device into the hook of the lateral suspension frame 52 through the top mounting hole to ensure that it is securely suspended; then, snap the split counterweight 531 into place from both sides of the lower end of the infusion device so that the counterweight 531 is directly below the infusion device. At the same time, check whether the spring damper 533 is accurately connected to the counterweight 531 and the lateral limiting frame 54 and the bottom limiting frame 55, and whether the annular rubber buffer pad 532 is wrapped around the outside of the counterweight 531 without deviation.
[0044] Preset flow rate: Rotate the control block on one side of the top assembly frame 51 to drive the internal lead screw to rotate and adjust the distance between the movable speed regulating wheel 565 and the fixed guide wheel 564: the larger the distance, the smaller the friction on the surface of the internal lifting frame 561, the faster the descent rate, and the higher the infusion flow rate; conversely, the smaller the distance, the lower the flow rate. Stop adjusting after setting the appropriate flow rate according to the doctor's order.
[0045] Anti-sway stability: When the ship sways, the infusion device tends to swing due to inertial force. At this time, the weight of the counterweight 531 and the elastic force of the spring damper 533 form a counterforce. The spring damper 533 elastically expands and contracts by ±5mm in the X and Y axes to counteract the effect of inertial force on the infusion device and reduce its swing amplitude. If the swing amplitude is large, when the counterweight 531 shifts to one side, the annular rubber buffer pad 532 will contact the counterweight 531 before the lateral limit frame 54, buffering the impact energy and avoiding structural damage and noise generation.
[0046] Flow control: The internal lifting frame 561 descends slowly under the gravity of its own top counterweight, causing the two side flipping assembly frames 562 to flip synchronously. The detachable counterweight squeezing roller 563 continuously applies uniform squeezing force from both sides of the infusion device, pushing the liquid into the infusion pipeline at a uniform speed. During the process, if the ship rolls and causes the infusion device to deform, the squeezing roller 563 can adaptively adjust its angle with the flipping assembly frame 562 to ensure stable squeezing force and avoid drip rate fluctuations.
[0047] Status monitoring: The weighing unit 521 of the lateral suspension frame 52 collects the weight data of the infusion device in real time. Medical staff can monitor the remaining amount of medication through data changes and prepare for subsequent infusion or tube removal operations in a timely manner to avoid air embolism due to depletion of medication.
[0048] Disassembly and cleaning: First, remove the infusion device, press the snap-fit structure of the counterweight 531, separate the split counterweight 531 and place it properly; clean the dust or stains on the surface of the bottom anti-slip component 6, and check whether the annular rubber buffer pad 532 and spring damper 533 are damaged. If they are damaged, they should be replaced in time.
[0049] Support structure storage: The elastic extension limiting block 31 is squeezed in the opposite direction to disengage it from the limiting slide groove, and the flipping support foot 2 is flipped inward, which drives the folding support connecting rod 3 to fold back until the flipping support foot 2 is attached to the outside of the main support tube 101; the locking bolt 103 is loosened, the auxiliary extension tube 102 is pushed down into the main support tube 101, and then the locking bolt 103 is tightened to fix it, reducing the overall volume of the equipment.
[0050] Storage: Place the stored equipment in a dry, well-ventilated storage space to prevent the bottom anti-slip component 6 from deforming under pressure, ensuring support stability and anti-slip effect during subsequent use. Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, comprising a telescopic main support rod (1), characterized in that: The telescopic main support rod (1) has a plurality of flip-out support feet (2) hinged at its lower end. Folding support rods (3) are provided between the flip-out support feet (2) and the telescopic main support rod (1). The top of the telescopic main support rod (1) is movably fitted with a top mounting frame (51) for suspending the infusion device. The top mounting frame (51) is movably fitted with a stabilizing component (5) for improving the stability of the infusion device in a swaying environment.
2. The self-controlled infusion device stabilization mechanism suitable for ship rolling environments according to claim 1, characterized in that: The lower end of the flip support foot (2) is fixed with a bottom anti-slip component (6) for improving the bottom anti-slip performance. The bottom anti-slip component (6) is made of fluororubber and has a diamond anti-slip pattern on its surface. The depth of the diamond anti-slip pattern is 0.8-1.2mm. The bottom anti-slip component (6) and the flip support foot (2) are detachably connected by bolts.
3. The self-controlled infusion device stabilization mechanism suitable for ship rolling environments according to claim 1, characterized in that: The folding support link (3) is a folding double link structure, and the central connecting end of the folding support link (3) is slidably fitted with an elastic extension limiting block (31).
4. The self-controlled infusion device stabilization mechanism suitable for ship rolling environments according to claim 1, characterized in that: The telescopic main support rod (1) includes a main support tube (101) with a flip support foot (2) installed on the outside and a secondary extension tube (102) that is slidably inserted into the upper opening of the main support tube (101). The outer side of the main support tube (101) is threaded with a locking bolt (103) for locking the position of the secondary extension tube (102).
5. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 4, characterized in that: The top end of the secondary extension tube (102) is axially fixed with a top mounting shaft (104), and the stabilizing component (5) is movably assembled with the top end of the secondary extension tube (102) by being sleeved on the top mounting shaft (104).
6. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 5, characterized in that: The stabilizing component (5) includes a T-shaped top mounting frame (51) movably mounted on the top mounting shaft (104), lateral suspension frames (52) movably mounted on the lower ends of both sides of the top mounting frame (51), a built-in stabilizing component (53) movably mounted on the lower end of the lateral suspension frames (52), a lateral limiting frame (54) located on the side wall of the top mounting frame (51), and a bottom limiting frame (55).
7. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 6, is characterized in that: The built-in stabilizing component (53) includes a counterweight (531) made of high-density tungsten alloy, an annular rubber buffer pad (532), and a spring damper (533).
8. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 7, characterized in that: The counterweight (531) is snapped onto the lower end of the infusion device. The annular rubber buffer pad (532) is fixed on the inner wall of the lateral limiting frame (54) and surrounds the outside of the counterweight (531). The spring damper (533) connects the counterweight (531) to the lateral limiting frame (54) and the counterweight (531) to the bottom limiting frame (55). The elastic coefficient of the spring damper (533) is 5-8 N / mm.
9. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 6, characterized in that: The lateral suspension frame (52) is equipped with a weighing unit (521) at its assembly end.
10. A stabilizing mechanism for a self-controlled infusion device suitable for ship rolling environments, as described in claim 6, characterized in that: The top assembly frame (51) is equipped with a self-weight extrusion flow stabilizing device (56) which is slidably mounted on both sides of the side suspension frame (52). The self-weight extrusion flow stabilizing device (56) includes an internal lifting frame (561) that moves through the lifting hole inside the top assembly frame (51), a flip assembly frame (562) hinged on both sides of the internal lifting frame (561), a detachable counterweight extrusion roller (563) installed inside the flip assembly frame (562), a fixed guide wheel (564) installed on the upper end of the top assembly frame (51), and a movable speed regulating wheel (565) that moves on the upper end of the top assembly frame (51).