Anti-falling structure of infusion apparatus
By using a fixing strap with adhesive fibers and hooks, along with an elastic connecting strap, on the infusion set, the problem of the inability to adjust the tightness of existing infusion set fixing structures is solved, thus improving the fixing stability of the infusion set and reducing the risk of detachment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHILDRENS HOSPITAL OF CHONGQING MEDICAL UNIV
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-19
AI Technical Summary
The existing infusion set fixation structure cannot flexibly adjust the tightness, making it easy for the set to fall off when the patient moves, especially when children are crying, which increases the pain and trouble of reinserting the needle.
The first and second fixing straps, which employ a sticky and hook structure, are combined with an elastic connecting strap and a binding strap. The tightness can be flexibly adjusted through the adjustment hole and the arc-shaped pressure block. The binding strap is in close contact with the infusion tube to prevent it from shifting.
It allows for flexible adjustment of tightness based on the infusion set's diameter and the operator's experience, improving the fixation effect, preventing the infusion set from falling off, and reducing the frequency of needle re-insertion.
Smart Images

Figure CN224251875U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical auxiliary device technology, specifically relating to an infusion set anti-dislodgement structure. Background Technology
[0002] Currently, when using an infusion set, one end of the set is inserted into the IV bottle, allowing the intravenous fluid to enter the set. The set is used to regulate the drip rate, and the fluid is then injected into a vein through the needle at the other end of the set. Because infusions take a long time, the set can easily detach from the bottle when the patient moves, especially in children who are crying. To prevent reinsertion of the set after detachment, which could introduce bacteria, the set needs to be replaced, the needle removed, and the injection repeated, causing additional pain and inconvenience for the patient.
[0003] Chinese patent document with application number CN202020098138.0 discloses a connecting and fixing device for preventing infusion strips from falling off, including a first fixing belt, a second fixing belt and an elastic connecting belt. One end of the first fixing belt is provided with a plurality of first male buckles and the other end is provided with at least two first female buckles that cooperate with the first male buckles. One end of the second fixing belt is provided with a plurality of second male buckles and the other end is provided with at least two second female buckles that cooperate with the second male buckles.
[0004] Further research by the applicant revealed that the first and second fixing straps in the technical solution are connected by snap fasteners, forming a closed binding structure around the infusion set and bottle. However, due to the limitations of the snap fastener's design and position, the tightness cannot be adjusted reasonably according to the size of the binding opening or the operator's experience. Therefore, the adaptability of this connecting fastener is poor and further improvements are needed. Utility Model Content
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] An infusion set anti-dislodgement structure includes:
[0007] First fixing strap, second fixing strap;
[0008] At least one of the first fixing strap and the second fixing strap has a sticky bristle on one end surface and a hook that cooperates with the sticky bristle on the other end surface.
[0009] An elastic connecting strap connects the first fixing strap and the second fixing strap;
[0010] The elastic connecting strip is slidably connected to two sides by a binding strip and a binding strip, and the ends of the binding strip and the binding strip are connected to form a closed shape.
[0011] The elastic connecting strip is rectangular, and the upper end of the elastic connecting strip has adjustment holes through which the first binding strip and the second binding strip can pass respectively;
[0012] An arc-shaped pressure block is provided on the outer side of the elastic connecting strip, and the first binding strip and the second binding strip are respectively connected to the two sides of the arc-shaped pressure block.
[0013] Furthermore, several sets of rubber protrusions are distributed along the length direction on the peripheral wall of the arc-shaped pressure block.
[0014] Furthermore, the two binding strips have an elongated notch in the middle, which divides the two binding strips into two sets of parallel winding strips, and the ends of the first binding strip have symmetrical through holes for the winding strips to pass through.
[0015] Furthermore, the adjustment hole is elongated and extends along the length of the elastic connecting strip.
[0016] Furthermore, the connection structure includes mutually cooperating adhesive fibers and adhesive hooks.
[0017] Furthermore, both the first and second fixing straps have openings in the middle.
[0018] Furthermore, several anti-slip strips are respectively provided on the inner sidewalls of the first fixing strap and the second fixing strap.
[0019] Compared with the prior art, this utility model has the following advantages:
[0020] The first and second fixing straps are respectively wrapped around the notch of the rubber stopper of the infusion bottle and the handle of the infusion tube. Compared with the existing snap-fit structure, the first and second fixing straps are designed with adhesive fibers and hooks, which can be adjusted flexibly according to the diameter and the operator's experience, making them more adaptable.
[0021] The system employs a binding first strap and a binding second strap, which, through a connecting structure, ensures that the elastic connecting strap is in close contact with the outer periphery of the infusion tube. This prevents the end of the infusion tube near the infusion bottle from shifting left and right, thus affecting the anti-dislodgement structure's ability to secure the infusion set. Attached Figure Description
[0022] Figure 1 A schematic diagram illustrating the structure of a specific embodiment of this utility model;
[0023] Figure 2 This is a schematic diagram of the first and second fixing belts in use in the current technology.
[0024] The reference numerals in the accompanying drawings include:
[0025] First fixing band 1, second fixing band 2, lint trap 30, hook 31, opening 32, anti-slip strip 33, elastic connecting band 4, adjustment hole 40, binding band 1 5, through hole 50, binding band 2 6, notch 60, wrapping band 61, arc-shaped pressure block 7, infusion tube 8, infusion bottle 9. Detailed Implementation
[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0028] like Figure 1 - Figure 2 As shown, the present invention provides an anti-dislodgement structure for an infusion set, comprising a first fixing strap 1 and a second fixing strap 2;
[0029] Among them, at least one of the first fixing band 1 and the second fixing band 2 has a lint-adhesive 30 on one end surface and a hook 31 that cooperates with the lint-adhesive 30 on the other end surface.
[0030] The elastic connecting strip 4 connects the first fixing strip 1 and the second fixing strip 2;
[0031] Both the first fixing strap 1 and the second fixing strap 2 have a through hole 32 in the middle.
[0032] The elastic connecting band 4 is slidably connected to the two sides of the binding band 5 and the binding band 6 respectively, and the ends of the binding band 5 and the binding band 6 are connected to form a closed shape through the connecting structure;
[0033] The first fixing strap 1 and the second fixing strap 2 are both made of latex material. The first fixing strap 1 and the second fixing strap 2 made of latex material have good elasticity, good firmness, and long service life.
[0034] The elastic connecting strip 4 is made of polytetrafluoroethylene dispersion resin. It has the advantages of good elasticity and long service life.
[0035] The first fixing strap 1 and the second fixing strap 2 are respectively wrapped around the notch of the rubber stopper of the infusion bottle 9 and the handle of the infusion tube 8. Compared with the existing snap fastener structure, the first fixing strap 1 and the second fixing strap 2 are equipped with adhesive 30 and adhesive hook 31, which can be adjusted flexibly according to the diameter and the operator's experience, making them more adaptable.
[0036] The elastic connecting band 4 has a buffering effect, which can cause the needle tip to rebound after being pulled, preventing the needle tip from shifting downward and causing the risk of it coming off the infusion bag.
[0037] The elastic connecting strip 4 is rectangular, and the upper end of the elastic connecting strip 4 is provided with adjustment holes 40 for the binding strip 5 and the binding strip 6 to pass through respectively;
[0038] By using the binding strap 5 and binding strap 6, the elastic connecting strap 4 is made to be in close contact with the outer periphery of the infusion tube 8 through the connection structure, so as to prevent the end of the infusion tube 8 near the infusion bottle 9 from moving left and right, which would affect the fixing effect of the anti-detachment structure on the infusion set.
[0039] The aforementioned adjustment hole 40 is elongated and extends along the length of the elastic connecting strip 4. This design allows the binding strip 5 and the binding strip 6 to be adjusted in position as needed.
[0040] An arc-shaped pressure block 7 is provided on the outer side of the elastic connecting strip 4, and the binding strip 5 and the binding strip 6 are respectively connected to the two sides of the arc-shaped pressure block 7.
[0041] After the first binding band 5 and the second binding band 6 are fixed, the elastic band has a large area in contact with and fits against the arc-shaped pressure block 7. This design avoids stress concentration on the first binding band 5 and the second binding band 6 after binding, thus preventing excessive compression of the infusion tube 8. The arc-shaped pressure block 7 is made of rigid plastic. The arc-shaped pressure block 7 is generally elongated, and its cross-section is an inwardly concave arc surface that conforms to the shape of the infusion tube 8.
[0042] In addition, there are several sets of rubber protrusions distributed along the length of the 7-sided wall of the arc-shaped pressure block (not shown in the figure).
[0043] The addition of rubber protrusions makes the arc-shaped pressure block 7 fit better with the elastic connecting strip 4, resulting in better fixation.
[0044] Specifically, the second binding band 6 has an elongated notch 60 in the middle, and the ends of the first binding band 5 have symmetrical through holes 50 for the winding band 61 to pass through. The first binding band 5 and the second binding band 6 can also adopt a connection structure of mutually cooperating lint 30 and hook 31.
[0045] The notch 60 divides the binding band 6 into two sets of parallel winding bands 61, making the binding structure more secure.
[0046] One end of the wrapping tape 61 is wrapped around the infusion tube 8 and the arc-shaped pressure block 7, and then passed through the through hole 50. It is then connected by the adhesive hair 30 and the adhesive hook 31.
[0047] In addition, several anti-slip strips 33 are respectively provided on the inner sidewalls of the first fixing belt 1 and the second fixing belt 2.
[0048] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.
Claims
1. An anti-dislodgement structure for an infusion set, characterized in that, include: First fixing strap (1), second fixing strap (2); At least one of the first fixing strap (1) and the second fixing strap (2) has a sticky hair (30) on one end surface and a hook (31) that cooperates with the sticky hair (30) on the other end surface. An elastic connecting strip (4) is connected between the first fixing strip (1) and the second fixing strip (2); The elastic connecting strip (4) is slidably connected to a binding strip (5) and a binding strip (6) on both sides, and the ends of the binding strip (5) and the binding strip (6) are connected to form a closed shape through a connecting structure; The elastic connecting strip (4) is rectangular, and the upper end of the elastic connecting strip (4) is provided with adjustment holes (40) through which the first binding strip (5) and the second binding strip (6) can pass respectively; An arc-shaped pressure block (7) is provided on the outside of the elastic connecting strip (4), and the binding strip (5) and binding strip (6) are respectively connected to the two sides of the arc-shaped pressure block (7).
2. The infusion set anti-dislodgement structure as described in claim 1, characterized in that: The arc-shaped pressure block (7) has several sets of rubber protrusions distributed along its length on its peripheral wall.
3. The infusion set anti-dislodgement structure as described in claim 1 or 2, characterized in that: The binding band (6) has a long strip-shaped notch (60) in the middle, which divides the binding band (6) into two sets of parallel winding bands (61). The end of the binding band (5) has symmetrical through holes (50) for the winding bands (61) to pass through.
4. The infusion set anti-dislodgement structure as described in claim 3, characterized in that: The adjustment hole (40) is elongated and extends along the length of the elastic connecting strip (4).
5. The infusion set anti-dislodgement structure as described in claim 4, characterized in that: The connection structure includes mutually cooperating adhesive fibers (30) and adhesive hooks (31).
6. An anti-dislodgement structure for an infusion set as described in claim 1, 2, 4, or 5, characterized in that: Both the first fixing strap (1) and the second fixing strap (2) have a through hole (32) in the middle.
7. The infusion set anti-dislodgement structure as described in claim 6, characterized in that: Several anti-slip strips (33) are respectively provided on the inner sidewalls of the first fixing strip (1) and the second fixing strip (2).