Infant hand back venous indwelling needle fixing device

Abstract

The utility model discloses a fixing device for an infant hand back venous indwelling needle. The fixing device comprises a fixing device body. A connecting piece is installed at one end of the fixing device body, a bunching mechanism is arranged at one end of the connecting piece and comprises a movable piece installed on the side face of the connecting piece, a connecting block is installed at one end of the movable piece, a threading hole is formed in one end of the connecting block, and an elastic arc piece is installed on the side face of the connecting block. By arranging the connecting block, the threading hole and the like, one end of an infusion tube penetrates out of the threading hole, the finger sleeve plate is pulled to drive the spring to stretch, one end of the pressing block slides in the threading hole, the pressing block returns after the finger sleeve plate is loosened, the side face of the infusion tube is clamped and fixed at the threading hole, and one end of the infusion tube is placed in the elastic arc piece. One end of the infusion tube is fixed, and the movable sheet is mounted on the fixing device main body, so that a moving space is provided for the hand of an infant, the infusion tube cannot fall off during moving, and the applicability of the fixing device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of intravenous indwelling needle fixation devices, specifically an intravenous indwelling needle fixation device for infants and young children. Background Technology

[0002] An indwelling needle is a medical device used to maintain long-term intravenous access in a patient's body so that medical procedures such as drug injection, infusion, and blood drawing can be performed within a certain period of time. Compared with traditional short-term needles, indwelling needles are more convenient in design, reducing the pain and risks of frequent punctures. They are suitable for patients who need long-term or multiple treatments. The structure of an indwelling needle usually consists of a needle tube, a soft tube, and a connector. It is similar in shape to a thin catheter. The soft tube of the indwelling needle is generally made of a soft material, which can better adapt to the shape of the blood vessel and reduce irritation and damage to the blood vessel wall.

[0003] Existing intravenous catheter fixation devices typically fix an infant's hand to a horizontal board and secure it with medical bandages. This simple fixation method for the infant's hand and arm is problematic because infants are prone to movement and cannot control their bodies well, often leading to the catheter falling out and affecting the treatment outcome. The horizontal board lacks a structure that allows for both fixation and movement, reducing the applicability of the fixation device. Therefore, there is a need for an intravenous catheter fixation device for infants' hands to meet this need. Utility Model Content

[0004] The purpose of this invention is to provide a fixation device for an indwelling needle for a vein in the back of the hand in infants and young children, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixation device for an indwelling vein catheter on the back of the hand of an infant, comprising a main body of the fixation device; a connecting piece is installed at one end of the main body of the fixation device, and a wire-binding mechanism is provided at one end of the connecting piece;

[0006] Preferably, the wire harness mechanism includes a movable piece installed on the side of the connecting piece, a connecting block installed at one end of the movable piece, a wire-passing hole at one end of the connecting block, an elastic arc plate installed on the side of the connecting block, symmetrical cylindrical grooves opened in the connecting block, a spring installed in the cylindrical grooves, a pressure block installed at one end of the wire-passing hole, a finger sleeve plate installed at one end of the pressure block, and a limit block installed at the bottom of the movable piece.

[0007] Preferably, the side of the connecting piece is provided with symmetrical snap-fit ​​grooves, and one end of the main body of the fixing device is equipped with a snap-fit ​​block, and the snap-fit ​​grooves and snap-fit ​​blocks are compatible.

[0008] Preferably, a strap is installed at one end of the main body of the fixing device, one end of the strap has a hook and loop fastener surface, and the side of the strap has a hook and loop fastener surface, the hook and loop fastener surface and the hook and loop fastener surface are compatible.

[0009] Preferably, one end of the main body of the fixing device is provided with a pad, and the pad has multiple ventilation holes.

[0010] Preferably, a limiting groove is provided at one end of the main body of the fixing device, and the limiting groove is adapted to the limiting block.

[0011] Preferably, one end of the spring is mounted on the inner wall of the cylindrical groove, and the other end of the spring is mounted on the finger sleeve plate.

[0012] Preferably, a snap-fit ​​block is installed at one end of the movable piece, and the movable piece is adapted to the connecting piece.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By setting a connecting block and a threading hole, one end of the infusion tube is passed through the threading hole. By pulling the finger sleeve plate, the spring is stretched, and one end of the pressure block slides in the threading hole. After the finger sleeve plate is released, the pressure block returns to its position and clamps and fixes the side of the infusion tube at the threading hole. One end of the infusion tube is placed in the elastic arc plate and fixed. The movable piece is installed on the main body of the fixing device, so that the infant's hand has room to move. The infusion tube will not fall off during the activity, which improves the applicability of the fixing device.

[0015] (2) This utility model, by setting up connecting pieces and pads, allows the infant's hand to pass through one end of the main body of the fixation device. The pad is placed on the main body of the fixation device, and the infant's hand is fixed to the pad using medical straps. The snap-fit ​​groove at one end of the connecting piece is connected to the snap-fit ​​block on the side of the fixation device, and one end of the movable piece is installed to the other end of the connecting piece, thus completing the overall assembly of the fixation device. One end of the strap is tightened to the infant's arm and fixed with the hook and loop sides of the Velcro, thus fixing the main body of the fixation device to the infant's arm and improving the applicability of the fixation device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a fixation device for an indwelling vein in the back of the hand of an infant proposed in this utility model;

[0017] Figure 2 This is a structural diagram of the pad and ventilation holes of a fixation device for an indwelling vein catheter on the back of an infant's hand proposed in this utility model.

[0018] Figure 3This is a structural diagram of the connecting piece and locking block of a fixation device for an indwelling vein catheter on the back of an infant's hand, as proposed in this utility model.

[0019] Figure 4 for Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Fixing device body; 2. Cable harness mechanism; 3. Connecting piece; 4. Snap-fit ​​groove; 5. Snap-fit ​​block; 6. Strap; 7. Velcro surface; 8. Velcro hook surface; 9. Pad; 10. Vent hole; 11. Limiting groove; 21. Movable piece; 22. Connecting block; 23. Threading hole; 24. Elastic arc piece; 25. Cylindrical groove; 26. Spring; 27. Pressure block; 28. Finger sleeve plate; 29. ​​Limiting block. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a fixation device for an indwelling vein catheter on the back of the hand of an infant, including a fixation device body 1; a connecting piece 3 is installed at one end of the fixation device body 1, and a wire-binding mechanism 2 is provided at one end of the connecting piece 3; the wire-binding mechanism 2 includes a movable piece 21 installed on the side of the connecting piece 3, a connecting block 22 installed at one end of the movable piece 21, a threading hole 23 opened at one end of the connecting block 22, an elastic arc piece 24 installed on the side of the connecting block 22, symmetrical cylindrical grooves 25 opened in the connecting block 22, a spring 26 provided in the cylindrical grooves 25, a pressure block 27 installed at one end of the threading hole 23, and a pressure block 27 at one end of the pressure block 27. A finger sleeve plate 28 is installed, a limit block 29 is installed at the bottom of the movable piece 21, symmetrical snap-fit ​​grooves 4 are opened on the side of the connecting piece 3, a snap-fit ​​block 5 is installed at one end of the fixing device body 1, the snap-fit ​​groove 4 and the snap-fit ​​block 5 are adapted to each other, a pad 9 is provided at one end of the fixing device body 1, the pad 9 is provided with multiple ventilation holes 10, a limit groove 11 is opened at one end of the fixing device body 1, the limit groove 11 is adapted to the limit block 29, one end of the spring 26 is installed on the inner wall of the cylindrical groove 25, the other end of the spring 26 is installed on the finger sleeve plate 28, a snap-fit ​​block 5 is installed at one end of the movable piece 21, the movable piece 21 and the connecting piece 3 are connected. To accommodate the indwelling needle in an infant, first, the infant's hand is passed through one end of the fixation device body 1 and placed on the fixation device body 1. After the indwelling needle is inserted behind the hand, the hand is secured to the pad 9 using a medical strap. Ventilation and heat dissipation are achieved through multiple ventilation holes 10 at the bottom of the pad 9. The locking groove 4 at one end of the connecting piece 3 is engaged with the locking block 5 at one end of the fixation device body 1. The limiting block 29 at the bottom of the movable piece 21 is inserted into one end of the fixation device body 1 through the limiting groove 11. The locking block 5 on the movable piece 21 is engaged with the locking groove 4 at the other end of the connecting piece 3, thus completing the fixation. The assembly of the main body 1 involves passing one end of the infusion tube through the thread hole 23, pulling the finger sleeve plate 28 on the movable piece 21 to stretch the spring 26, which in turn causes the pressure block 27 at the bottom to slide within the thread hole 23. The opening on the pressure block 27 and the opening of the thread hole 23 clamp and fix one end of the infusion tube. The spring 26 returns the pressure block 27 to its original position to limit the infusion tube. The end of the infusion tube is straightened by the elastic arc piece 24 to ensure stability during infusion. When the infant's arm moves, the position of the infusion tube is limited, preventing the indwelling needle from falling out, thus improving the applicability of the main body 1.

[0025] Example 2: As Figure 1 and 3As shown, a strap 6 is installed at one end of the main body 1 of the fixing device. One end of the strap 6 has a Velcro surface 7, and a Velcro hook surface 8 is installed on the side of the strap 6. The Velcro surface 7 and the Velcro hook surface 8 are adapted to each other. Pulling the strap 6 on the side of the main body 1 of the fixing device will tighten and bind it to the infant's arm. The Velcro surface 7 and the Velcro hook surface 8 fix the main body 1 of the fixing device to one end of the arm. The remaining features are the same as in Embodiment 1.

[0026] The working principle is as follows: When it is necessary to fix an indwelling needle in an infant, firstly, the infant's hand is passed through one end of the fixation device body 1 and placed on the fixation device body 1. Pull the strap 6 on the side of the fixation device body 1 to tighten and bind it to the infant's arm. The fixation device body 1 is fixed to one end of the arm by the Velcro loop side 7 and the Velcro hook side 8. When the indwelling needle is inserted behind the hand, the hand is fixed to the pad 9 by the medical strap. Ventilation and heat dissipation are achieved through multiple ventilation holes 10 at the bottom of the pad 9. The snap-fit ​​groove 4 at one end of the connecting piece 3 is snapped into the snap-fit ​​block 5 at one end of the fixation device body 1. The limiting block 29 at the bottom of the movable piece 21 is inserted into one end of the fixation device body 1 through the limiting groove 11. The snap-fit ​​block 5 on the movable piece 21 snaps into the snap-fit ​​groove 4 at the other end of the connecting piece 3, completing the assembly of the main body 1 of the fixation device. One end of the infusion tube is passed through the thread hole 23. Pulling the finger sleeve plate 28 on the movable piece 21 causes the spring 26 to be stretched, which in turn causes the pressure block 27 at the bottom to slide in the thread hole 23. The opening on the pressure block 27 and the opening of the thread hole 23 clamp and fix one end of the infusion tube. The spring 26 returns the pressure block 27 to its original position to limit the infusion tube. One end of the infusion tube is straightened by the elastic arc piece 24 to ensure stability during infusion. When the infant's arm moves, the position of the infusion tube is limited, and the indwelling needle will not fall out, improving the applicability of the main body 1 of the fixation device.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An infant dorsa venous indwelling needle fixing device, comprising a fixing device main body (1); characterized in that: One end of the fixing tool body (1) is provided with a connecting sheet (3), one end of the connecting sheet (3) is provided with a binding mechanism (2); The binding mechanism (2) comprises a movable sheet (21) installed on the side of the connecting sheet (3), one end of the movable sheet (21) is provided with a connecting block (22), one end of the connecting block (22) is provided with a threading hole (23), the side of the connecting block (22) is provided with an elastic arc sheet (24), the connecting block (22) is provided with a symmetrical cylindrical groove (25) inside, the cylindrical groove (25) is provided with a spring (26) inside, one end of the threading hole (23) is provided with a pressing block (27), one end of the pressing block (27) is provided with a finger sleeve plate (28), and the bottom of the movable sheet (21) is provided with a limiting block (29).

2. The infant dorsal hand vein indwelling needle fixing device according to claim 1, characterized in that: The side of the connecting sheet (3) is provided with a symmetrical clamping groove (4), one end of the fixing tool body (1) is provided with a clamping block (5), and the clamping groove (4) and the clamping block (5) are matched.

3. The infant dorsal hand vein indwelling needle fixing device according to claim 1, characterized in that: One end of the fixing tool body (1) is provided with a bandage (6), one end of the bandage (6) is provided with a Velcro surface (7), the side of the bandage (6) is provided with a Velcro hook surface (8), and the Velcro surface (7) and the Velcro hook surface (8) are matched.

4. The infant dorsal hand vein indwelling needle fixing device according to claim 1, characterized in that: One end of the fixing tool body (1) is provided with a backing plate (9), and a plurality of air holes (10) are formed in the backing plate (9).

5. The infant dorsal hand vein indwelling needle fixing device according to claim 1, characterized in that: One end of the fixing tool body (1) is provided with a limiting groove (11), and the limiting groove (11) is matched with the limiting block (29).

6. The infant dorsal hand vein indwelling needle fixing device according to claim 1, characterized in that: One end of the spring (26) is installed on the inner wall of the cylindrical groove (25), and the other end of the spring (26) is installed on the finger sleeve plate (28).

7. The infant dorsal hand vein indwelling needle fixing device according to claim 2, characterized in that: One end of the movable sheet (21) is provided with a clamping block (5), and the movable sheet (21) is matched with the connecting sheet (3).

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