Anti-leakage device for venous transfusion

Abstract

The invention relates to the technical field of venous transfusion, in particular to an anti-leakage device for venous transfusion. The device comprises a supporting assembly, the supporting assembly at least comprises a base, the top of the base is fixedly connected with a supporting disc, a tray is arranged above the supporting disc, a plurality of buffering assemblies are arranged between the supporting disc and the tray, the tray is in sliding connection with the supporting disc through the buffering assemblies, and one side of the top of the supporting disc is rotationally connected with a plurality of hook-and-loop fasteners; according to the anti-leakage device for venous transfusion, the transfusion arm of a patient is fixed through a plurality of hook-and-loop fasteners, the limiting assembly is used for fixing the fingers of the patient to the top of the fixing assembly, and after the hand of the patient is fixed through the hook-and-loop fasteners and the limiting assembly, the gap between the fixing assembly and the supporting disc is used for observing the hand back condition of the patient during transfusion; the multiple buffer assemblies are used for improving the comfort degree of the fixed infusion arm, and the fixing assembly is used for relieving the ache feeling of the hand of a patient.

Description

Technical Field

[0001] The present invention relates to the technical field of intravenous infusion, in particular to an anti-leakage device for intravenous infusion. Background Art

[0002] Drug extravasation refers to the process of infusion, due to needle displacement, blood vessel rupture or other reasons, which causes the infused drug to leak out of the blood vessels into the surrounding tissues, forming local swelling and bulges. It usually manifests as swelling, distending pain, moderate or severe pain, often burning, stinging, local redness and swelling, no blood return after aspiration, dark purple and hardened skin. Once drug leakage occurs, it will cause a more serious safety situation for the patient.

[0003] In order to solve the problem of drug extravasation, hand fixation devices came into being. Its original intention was to reduce the possibility of needle displacement by fixing the infusion arm. However, in actual applications, due to the long infusion time, the patient's hand is prone to soreness in a fixed state. Although the patient can relieve it to a certain extent by clenching his fist, if the control is not appropriate at this time, the palm will be tilted upward, changing the angle between the palm and the arm of the infusion hand, which may cause the needle to puncture the blood vessel wall and cause drug extravasation. This situation often occurs in infusion scenarios in various medical institutions, especially for patients who need long-term infusion, such as patients with chronic diseases and postoperative rehabilitation patients. While solving the problem of drug extravasation, the current hand fixation device fails to fully consider the discomfort caused by the patient's long-term fixed posture and the new infusion risks that may be caused by this. Therefore, how to reduce the discomfort caused by the patient's long-term fixed posture on the basis of ensuring effective fixation of the infusion arm and preventing drug extravasation, and avoid new infusion risks caused by actions to relieve discomfort, has become a technical problem that needs to be solved urgently.

[0004] In view of this, we propose an intravenous infusion anti-leakage device to improve the deficiencies in the prior art. Summary of the invention

[0005] The object of the present invention is to provide an intravenous infusion anti-leakage device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides an intravenous infusion anti-leakage device, including a support assembly, the support assembly at least including a base, a support plate is fixedly connected to the top of the base, a tray is provided above the support plate, a plurality of buffer assemblies are provided between the support plate and the tray, the tray is slidably connected to the support plate through the buffer assembly, and a plurality of Velcro strips are rotatably connected to one side of the top of the support plate;

[0007] Among them, a fixing component is provided at one end of the support plate, an adjusting component is provided on a side of the fixing component close to the support plate, the adjusting component is slidably connected to the bottom of the buffer component close to the fixing component, and a limiting component is provided on the top of the fixing component;

[0008] Several of the Velcro strips are used to fix the patient's infusion arm, and the limiting assembly is used to fix the patient's fingers on the top of the fixing assembly. After the Velcro strips and the limiting assembly fix the patient's hand, the interval between the fixing assembly and the support plate is used to observe the back of the patient's hand for infusion. Several of the buffer assemblies are used to improve the comfort of the fixed infusion arm. The fixing assembly is used to relieve the soreness of the patient's hand. In the process of the fixing assembly relieving the soreness of the hand, the fixing assembly can drive the adjustment assembly to approach the buffer assembly, which is used to lift up one end of the tray close to the fixing assembly. After one end is lifted up, the tray is used to keep the patient's arm and back of the hand level.

[0009] As a further improvement of the present technical solution, the buffer assembly includes a buffer groove opened on the top of the support plate, and the buffer assembly also includes a sliding rod fixedly connected to the bottom of the tray. The buffer groove and the sliding rod are slidably connected, and a first spring is provided on the periphery of the sliding rod between the support plate and the tray.

[0010] As a further improvement of the technical solution, the support assembly also includes an airbag fixedly connected to the top of the tray, and the internal pressure of the airbag is greater than the elastic force of the first spring.

[0011] As a further improvement of the present technical solution, the fixing assembly includes a pair of slide grooves opened at one end of the support plate, guide rods are slidably connected in the two slide grooves, limit blocks are fixed on the two guide rods at the end away from the slide grooves, a fixing seat is fixedly connected between the two limit blocks, and a second spring is sleeved on the periphery of the two guide rods between the support plate and the limit block.

[0012] As a further improvement of the present technical solution, the adjustment component includes an adjustment groove opened at the bottom of the buffer groove, the adjustment groove is perpendicular to the buffer groove, and the adjustment component also includes an adjustment rod slidably connected to the adjustment groove, and the end of the adjustment rod away from the support plate is fixed to the bottom of the fixed seat.

[0013] As a further improvement of the present technical solution, the limit assembly includes two groups of limit rods fixedly connected to the tops of the two limit blocks, a limit plate is slidably connected to the two groups of limit rods, the tops of the two groups of limit rods are fixedly connected to the limit caps, and the periphery of the two groups of limit rods are provided with a fourth spring between the limit plate and the limit cap.

[0014] As a further improvement of the technical solution, the material of the Velcro is modal and spandex, and the material of the sliding rod is polytetrafluoroethylene.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the intravenous infusion anti-leakage device, the patient's infusion arm is fixed by a plurality of Velcro strips, and the limiting component is used to fix the patient's fingers on the top of the fixing component. After the Velcro strips and the limiting component fix the patient's hand, the interval between the fixing component and the support plate is used to observe the back of the patient's hand during infusion. A plurality of buffer components are used to improve the comfort of the fixed infusion arm, and the fixing component is used to relieve the soreness of the patient's hand.

[0017] 2. In the intravenous infusion anti-leakage device, while the fixing component is relieving hand soreness, the fixing component can drive the adjusting component to approach the buffer component, so as to lift up one end of the tray close to the fixing component. The tray with one end lifted up is used to keep the patient's arm and back of the hand horizontal, so as to prevent the needle from piercing the blood vessel wall due to the lifted back of the hand, resulting in extravasation of the drug solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a partial cutaway schematic diagram of the present invention;

[0020] Figure 3 It is a left side view of the support assembly of the present invention;

[0021] Figure 4 It is a front view of the buffer assembly of the present invention;

[0022] Figure 5 A top view of a fixing assembly of the present invention;

[0023] Figure 6 For the present invention Figure 4 Enlarged view of point A in the middle;

[0024] Figure 7 It is a right side view of the limiting assembly of the present invention.

[0025] The meaning of each number in the figure is:

[0026] 10. Support assembly; 11. Base; 12. Support plate; 13. Tray; 14. Air bag; 15. Velcro;

[0027] 20. Buffer assembly; 21. Buffer groove; 22. Sliding rod; 23. First spring;

[0028] 30. Fixing assembly; 31. Slide groove; 32. Guide rod; 33. Limit block; 34. Fixing seat; 35. Second spring;

[0029] 40. adjustment assembly; 41. adjustment slot; 42. adjustment rod;

[0030] 50. Limiting assembly; 51. Limiting rod; 52. Limiting plate; 53. Fourth spring. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Example

[0035] See also Figure 1-Figure 7 As shown, the purpose of this embodiment is to provide an intravenous infusion anti-leakage device, including a support assembly 10, the support assembly 10 at least includes a base 11, a support plate 12 is fixedly connected to the top of the base 11, a tray 13 is arranged above the support plate 12, a plurality of buffer assemblies 20 are arranged between the support plate 12 and the tray 13, the tray 13 is slidably connected to the support plate 12 through the buffer assemblies 20, and a plurality of Velcro 15 are rotatably connected to one side of the top of the support plate 12;

[0036] Among them, a fixing assembly 30 is provided at one end of the support plate 12, and an adjusting assembly 40 is provided on a side of the fixing assembly 30 close to the support plate 12, and the adjusting assembly 40 is slidably connected to the bottom of the buffer assembly 20 close to the fixing assembly 30, and a limiting assembly 50 is provided on the top of the fixing assembly 30;

[0037] Several Velcros 15 are used to fix the patient's infusion arm to ensure the stability of the arm during the infusion process. Next, the function of the limit assembly 50 is to fix the patient's fingers on the top of the fixed assembly 30. After the Velcro 15 and the limit assembly 50 fix the patient's hand, the interval between the fixed assembly 30 and the support plate 12 is used to observe the back of the patient's hand during infusion, and several buffer assemblies 20 are used to improve the comfort of the fixed infusion arm. At the same time, the fixed assembly 30 is used to relieve the soreness of the patient's hand. In the process of the fixed assembly 30 relieving the soreness of the hand, the fixed assembly 30 can drive the adjustment assembly 40 to approach the buffer assembly 20, which is used to lift up one end of the tray 13 close to the fixed assembly 30. After one end is lifted up, the tray 13 is used to keep the patient's arm and back of the hand level.

[0038] Working principle: First, place the patient's infusion arm on the top of the tray 13, and then fix the arm with Velcro 15. Then, since the patient's arm has a certain weight, the arm will press down the buffer component 20 after being placed on the top of the tray 13. The resilience of the buffer component 20 relieves the patient's arm and improves the comfort. Then, the patient puts his fingers between the fixing component 30 and the limiting component 50 to fix the finger part. At the same time, place the back of the hand in the gap between the support plate 12 and the fixing component 30, so as to observe the infusion situation of the needle injection site at any time. As the infusion time increases, the patient's hand will feel sore if it keeps a posture, and the arm is fixed by Velcro 15 and is difficult to move, so only a simple fisting action can be performed to relieve the soreness of the hand. Since the patient's fingers are fixed between the fixing component 30 and the limiting component 50, making a fisting action will drive the fixing component 30 to move closer to the support plate 12. When the fixing assembly 30 approaches the support plate 12, the fixing assembly 30 simultaneously pushes the adjusting assembly 40 to slide inside the support plate 12. The adjusting assembly 40 is pushed into the bottom of the buffer assembly 20 closest to the fixing assembly 30, and the adjusting assembly 40 lifts up the buffer assembly 20 that was originally pressed down by the patient's arm, thereby lifting up the wrist placed on the tray 13, so that the wrist and the back of the hand remain horizontal. This prevents the needle from piercing the blood vessel wall because the patient makes a fist and lifts up the back of the hand, so that the back of the hand and the wrist are at a certain angle.

[0039] As the infusion time increases, the patient's hand will feel sore if it is kept in the same position, and the arm has been fixed by Velcro 15 and is difficult to move, so the patient can only make a simple fist movement to relieve the soreness of the hand.

[0040] like Figure 5As shown, first, the specific structure of the fixing assembly 30 is disclosed: the fixing assembly 30 includes a pair of slide grooves 31 opened at one end of the support plate 12, and the two slide grooves 31 are slidably connected with guide rods 32, and the two guide rods 32 are fixed with limit blocks 33 at the ends away from the slide grooves 31, and a fixing seat 34 is fixedly connected between the two limit blocks 33. The outer periphery of the two guide rods 32 is sleeved with second springs 35 between the support plate 12 and the limit blocks 33;

[0041] Furthermore, usually, the patient places four fingers on the top of the fixing seat 34, and the four fingers are fixed by the limiting assembly 50, while the thumb remains active, so that the patient has more room for movement to a certain extent, reducing the sense of restraint caused by complete fixation, thereby improving the comfort during the infusion process. At the same time, the unfixed fingers can perform some simple actions, such as touching objects, assisting in stabilizing the arm, etc., so that the patient can perform some necessary self-adjustments and auxiliary actions during the infusion process. When the patient's hand is sore due to being fixed for a long time, the soreness of the hand can be relieved by making a fist. When the patient's four fingers are re-clenched, the fixing seat 34 and the two limiting blocks 33 are pushed to slide in the direction close to the support plate 12. The two limiting blocks 33 then drive the guide rod 32 fixedly connected to themselves to slide into the slide groove 31, and at the same time, the second springs 35 are all compressed. Then release the fixing seat 34, and the fixing seat 34 will be reset under the action of the restoring force of the two second springs 35. Repeat the above-mentioned fisting and releasing actions to relieve the soreness of the hand.

[0042] When the patient makes a fist to relieve hand fatigue, the back of the hand may be inadvertently tilted up, so that the back of the hand and the wrist form a certain angle, causing the needle to pierce the blood vessel wall, thereby causing the drug solution to leak out. In order to avoid this situation, an adjustment component 40 is provided. When the patient makes a fist to pinch the fixing seat 34, the fixing seat 34 drives the adjustment component 40 to work synchronously.

[0043] Figure 6 The working state of the adjusting assembly 40 pushing one of the buffer assemblies 20 is shown. The specific structure of the adjusting assembly 40 is disclosed below: the adjusting assembly 40 includes an adjusting slot 41 opened at the bottom of the buffer slot 21, the adjusting slot 41 is perpendicular to the buffer slot 21, and the adjusting assembly 40 also includes an adjusting rod 42 slidably connected to the adjusting slot 41, and one end of the adjusting rod 42 away from the supporting plate 12 is fixed to the bottom of the fixing seat 34;

[0044] Furthermore, in order to realize that the fixing assembly 30 can synchronously push the adjustment assembly 40 to slide inside the support plate 12, when the patient pinches the fixing seat 34 to get close to the support plate 12, the bottom of the fixing seat 34 pushes the adjustment rod 42 to slide inside the adjustment slot 41. After the end of the adjustment rod 42 away from the fixing seat 34 slides into the bottom of the buffer assembly 20, the tray 13 on the top of the buffer assembly 20 is lifted up. The tray 13 with one end lifted up lifts the patient's wrist above itself, so that the patient's arm and the back of the hand remain horizontal. In addition, the adjustment rod 42 and the two guide rods 32 are in a triangular position relationship, which ensures the stability of the connection between the fixing assembly 30 and the support assembly 10, and prevents the support assembly 10 from tipping over due to excessive hand movement.

[0045] For patients who have been infused for a long time, if the arm is fixed to a fixed structure that cannot be moved, the patient will maintain a posture for a long time, which will cause muscle stiffness and soreness, causing obvious discomfort;

[0046] like Figure 4 As shown, the buffer assembly 20 includes a buffer groove 21 opened at the top of the support plate 12, and the buffer assembly 20 also includes a slide rod 22 fixedly connected to the bottom of the tray 13. The buffer groove 21 and the slide rod 22 are slidably connected, and the outer periphery of the slide rod 22 is provided with a first spring 23 between the support plate 12 and the tray 13.

[0047] The improvement is that the material of the Velcro 15 is modal and spandex, and the material of the slide bar 22 is polytetrafluoroethylene; modal is a cellulose fiber extracted from beech wood, which has a soft, smooth feel and good hygroscopicity. It can achieve elasticity and skin-friendliness when combined with spandex. The Velcro 15 made of modal and spandex is used to fix the patient's arm, which can provide a comfortable touch and adapt to different arm sizes and activity requirements. After the arm is placed on the top of the tray 13, the tray 13 is acted upon by the gravity of the arm, pushing the slide bar 22 to slide to the bottom of the buffer groove 21, and at the same time, the first spring 23 is compressed. The restoring force of the first spring 23 provides support for the patient's arm. In addition, the surface of the slide bar 22 made of polytetrafluoroethylene is very smooth, and has certain elasticity and corrosion resistance, thereby ensuring that the slide bar 22 can slide smoothly in the buffer groove 21 when it is lifted by one end of the adjustment rod 42.

[0048] Patients of different body shapes have arms of different weights. In order for the support assembly 10 to better fit the patient's arm during the infusion process, an air bag 14 is provided to fit the patient's arm;

[0049] Figure 3 The support assembly 10 is shown in a state when not in use. The support assembly 10 further includes an air bag 14 fixedly connected to the top of the tray 13 , and the internal pressure of the air bag 14 is greater than the elastic force of the first spring 23 .

[0050] The improvement is that after the patient places the arm for infusion on the top of the airbag 14, the airbag 14 wraps around the patient's arm to improve comfort. At the same time, because the internal pressure of the airbag 14 is greater than the elastic force of the first spring 23, the patient's arm, together with the airbag 14 and the tray 13, drives the slide bar 22 to slide toward the bottom of the buffer groove 21. An air filling port is provided at one end of the airbag 14, and gas is filled into the airbag 14 through an air pump. If the airbag 14 can push the first spring 23 to compress or stretch, and the first spring 23 cannot resist the action of the airbag 14 and returns to its original state, it can usually be judged that the internal pressure of the airbag 14 is greater than the elastic force of the first spring 23.

[0051] In order to prevent the patient from moving the needle on the back of the hand due to excessive movement of the fingers during infusion, thereby causing the needle to puncture the vein wall, the movement range of the fingers is limited by the limit component 50 during infusion.

[0052] like Figure 7 As shown, the limit assembly 50 includes two groups of limit rods 51 fixedly connected to the tops of the two limit blocks 33, a limit plate 52 is slidably connected to the two groups of limit rods 51, the tops of the two groups of limit rods 51 are fixedly connected to the limit caps, and the outer peripheries of the two groups of limit rods 51 are both provided with a fourth spring 53 between the limit plate 52 and the limit cap.

[0053] The improvement lies in that before fixing the patient's arm, the limit plate 52 is first pulled up along the limit rod 51. At this time, each fourth spring 53 is compressed. After placing the finger in the empty groove at the top of the fixing seat 34, the pressure on the limit plate 52 is removed. The limit plate 52 is reset under the action of the pressure of the fourth spring 53, thereby limiting the range of motion of the patient's infusion finger.

[0054] In summary, the working principle of this scheme is as follows: First, place the patient's infusion arm on the top of the tray 13, and then fix the arm with Velcro 15. Then, since the patient's arm has a certain weight, the arm will press the slide bar 22 into the buffer groove 21 after being placed on the top of the tray 13. The rebound force of the first spring 23 after compression will relieve the patient's arm and improve the comfort. Then, the patient puts his fingers in the position between the fixing seat 34 and the limiting plate 52 to fix the finger part. At the same time, the back of the hand is placed in the gap between the support plate 12 and the fixing seat 34, so as to observe the infusion situation of the needle injection site at any time. As the infusion time increases, the patient's hand will keep a posture, which will cause the hand to feel sore, and the arm is fixed by Velcro 15 and is difficult to move, so only a simple fisting action can be performed to relieve the soreness of the hand. Since the patient's fingers are fixed between the fixing seat 34 and the limiting plate 52, making a fisting action will drive the fixing seat 34 to move closer to the support plate 12. When the fixing seat 34 approaches the support plate 12, the bottom of the fixing seat 34 pushes the adjusting rod 42 to slide into the adjusting groove 41. After the end of the adjusting rod 42 away from the fixing seat 34 slides into the bottom of the slide bar 22, the tray 13 on the top of the slide bar 22 is lifted up. The tray 13 with one end lifted up lifts the patient's wrist above it, so that the patient's arm and the back of the hand are kept horizontal. This prevents the needle from piercing the blood vessel wall because the patient makes a fist and lifts the back of the hand, so that the back of the hand and the wrist are at a certain angle.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intravenous infusion anti-leakage device, characterized in that: The support assembly (10) comprises at least a base (11), a support plate (12) is fixedly connected to the top of the base (11), a tray (13) is arranged above the support plate (12), a plurality of buffer assemblies (20) are arranged between the support plate (12) and the tray (13), the tray (13) is slidably connected to the support plate (12) via the buffer assemblies (20), and a plurality of Velcro strips (15) are rotatably connected to one side of the top of the support plate (12); A fixing assembly (30) is provided at one end of the support plate (12); an adjusting assembly (40) is provided on a side of the fixing assembly (30) close to the support plate (12); the adjusting assembly (40) is slidably connected to the bottom of the buffer assembly (20) close to the fixing assembly (30); and a limiting assembly (50) is provided on the top of the fixing assembly (30); A plurality of Velcro strips (15) are used to fix the patient's infusion arm, the limiting assembly (50) is used to fix the patient's fingers on the top of the fixing assembly (30), after the Velcro strips (15) and the limiting assembly (50) fix the patient's hand, the interval between the fixing assembly (30) and the support plate (12) is used to observe the back of the patient's hand during infusion, a plurality of buffer assemblies (20) are used to improve the comfort of the fixed infusion arm, the fixing assembly (30) is used to relieve the soreness of the patient's hand, and in the process of the fixing assembly (30) relieving the soreness of the hand, the fixing assembly (30) can drive the adjustment assembly (40) to move closer to the buffer assembly (20), so as to lift up one end of the tray (13) close to the fixing assembly (30), and the tray (13) after one end is lifted up is used to keep the patient's arm and the back of the hand horizontal.

2. The intravenous infusion anti-leakage device according to claim 1, characterized in that: The buffer assembly (20) comprises a buffer groove (21) opened on the top of the support plate (12), and the buffer assembly (20) further comprises a slide bar (22) fixedly connected to the bottom of the tray (13), the buffer groove (21) and the slide bar (22) are slidably connected, and a first spring (23) is sleeved on the periphery of the slide bar (22) between the support plate (12) and the tray (13).

3. The intravenous infusion anti-leakage device according to claim 2, characterized in that: The support assembly (10) further comprises an air bag (14) fixedly connected to the top of the tray (13), wherein the internal pressure of the air bag (14) is greater than the elastic force of the first spring (23).

4. The intravenous infusion anti-leakage device according to claim 1, characterized in that: The fixing assembly (30) comprises a pair of slide grooves (31) opened at one end of the support plate (12), guide rods (32) are slidably connected in the two slide grooves (31), limit blocks (33) are fixed on the two guide rods (32) at the ends away from the slide grooves (31), a fixing seat (34) is fixedly connected between the two limit blocks (33), and second springs (35) are sleeved on the peripheries of the two guide rods (32) between the support plate (12) and the limit blocks (33).

5. The intravenous infusion anti-leakage device according to claim 2, characterized in that: The adjustment assembly (40) comprises an adjustment groove (41), wherein the adjustment groove (41) is arranged at the bottom of the buffer groove (21) and is perpendicular to the buffer groove (21). The adjustment assembly (40) further comprises an adjustment rod (42) slidably connected to the adjustment groove (41), wherein one end of the adjustment rod (42) away from the support plate (12) is fixed to the bottom of the fixing seat (34).

6. The intravenous infusion anti-leakage device according to claim 4, characterized in that: The limiting assembly (50) comprises two groups of limiting rods (51) fixedly connected to the tops of the two limiting blocks (33); a limiting plate (52) is slidably connected to the two groups of limiting rods (51); the tops of the two groups of limiting rods (51) are fixedly connected to limiting caps; and the outer peripheries of the two groups of limiting rods (51) are sleeved with fourth springs (53) between the limiting plates (52) and the limiting caps.

7. The intravenous infusion anti-leakage device according to claim 2, characterized in that: The material of the Velcro (15) is modal and spandex, and the material of the sliding rod (22) is polytetrafluoroethylene.

Images