Pediatric infusion arm sleeve
By designing a pediatric infusion arm sleeve, which utilizes structures such as a fixing plate, a moving plate, a positioning block, and a strap, the problem of poor wrist fixation during intravenous infusion in children has been solved. This achieves long-term effective fixation, avoids issues such as needle slippage, and improves the safety and comfort of infusion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MATERNAL & CHILD HEALTH HOSPITAL (CHONGQING OBSTETRICS & GYNECOLOGY HOSPITAL CHONGQING INST OF GENETICS & REPRODUCTION)
- Filing Date
- 2025-04-21
- Publication Date
- 2026-07-14
AI Technical Summary
In current pediatric intravenous infusion practices, the fixation plates and tapes lose their adhesiveness after prolonged use, resulting in a failure to effectively fix the child's wrist, thus failing to effectively restrict wrist movement and easily causing problems such as needle slippage.
A pediatric infusion arm sleeve was designed, including a fixing plate, a moving plate, a positioning block, a positioning rod, and a strap. The fixing sleeve is fixed to the forearm, the positioning block and the positioning rod block the palm, and the strap fixes the palm, restricts wrist movement, and keeps the palm and forearm in a straight position.
It effectively restricts children's wrist movement, avoids needle slippage, ensures long-term fixation, and improves the safety and comfort of intravenous infusion.
Smart Images

Figure CN224484642U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical devices, and in particular relates to a pediatric infusion arm sleeve. Background Technology
[0002] Intravenous infusion is the process of delivering medication into a patient's body via a vein to treat illness; it is commonly known as an IV drip or IV drip. Intravenous infusion is also the most common medical procedure in pediatrics. Depending on the age and physical condition, infusions can be administered via the back of the hand, scalp, or lower limbs, with back-of-the-hand vein infusion being the most common method in pediatrics. However, due to children's active nature, slight carelessness during back-of-the-hand vein infusion can cause the needle to shift, affecting the treatment's effectiveness.
[0003] Currently, hospitals commonly use fixation plates and tape to immobilize children's hands and arms. In this method, the fixation plate is placed under the hand and forearm, and the ends are secured to the hand and forearm with tape to restrict wrist movement and prevent needle slippage. However, intravenous infusions are typically lengthy, and the tape gradually loses its adhesiveness over time, rendering it ineffective in immobilizing the hand and forearm. The fixation plate can easily shift and slip off, failing to effectively restrict wrist movement. Without this restriction, the child's wrist may slip, potentially leading to needle slippage if not carefully monitored. Utility Model Content
[0004] The purpose of this invention is to provide a pediatric infusion arm sleeve that can effectively restrict children's wrist movement for extended periods.
[0005] The pediatric infusion arm sleeve includes a horizontally arranged fixing plate. A fixing sleeve is fixed to one end of the fixing plate and wrapped around the forearm. A movable plate is horizontally arranged at the other end of the fixing plate and slides along its length. Several positioning blocks for blocking and positioning the webbed fingers are fixed to the top of the movable plate. A strap for wrapping and fixing the palm is fixed to the movable plate. Two positioning rods are hinged to the fixing plate for blocking and positioning the palm on both sides near the wrist. The two positioning rods are fixed to the fixing sleeve.
[0006] Furthermore, a hole is provided on one side wall of the fixing plate for independently inserting one end of the movable plate, and a screw is inserted on the fixing plate for locking the movable plate after it has been moved.
[0007] Furthermore, a baffle is fixed on the side wall of the fixed plate where the insertion hole is provided. The baffle has a triangular cross-section and is located above the movable plate.
[0008] Furthermore, an anti-slip pad is fixed to the bottom of the fixing plate, and the bottom of the anti-slip pad has anti-slip texture.
[0009] Furthermore, the surfaces of all positioning blocks facing the finger webs are recessed arc surfaces, with soft pads fixed to these arc surfaces.
[0010] Furthermore, all positioning rods have an arc-shaped structure, and a protective pad is fixed on the inner circular surface of each positioning rod.
[0011] Furthermore, one of the positioning rods is fixed with a clamp for engaging the infusion tubing.
[0012] Furthermore, Velcro is provided between the two ends of the fixing sleeve for connecting and adjusting the tightness.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The fixation plate is secured to the forearm using a fixing sleeve. As the two ends of the fixing sleeve swing and wrap around the patient's forearm, they move two positioning rods to block the radial and ulnar sides of the palm, respectively. Then, the moving plate is moved so that the positioning block engages between the patient's fingers, blocking the web between the fingers. This, along with all the positioning rods and blocks, positions the palm, preventing lateral movement and also preventing the fixation plate and moving plate from slipping off. Finally, a strap is placed over the metacarpophalangeal joints to fix the palm to the moving plate, thus restricting the child's wrist movement. This effectively keeps the palm and forearm straight for an extended period, reducing hand joint movement through physical restraint and preventing problems such as needle slippage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a top view of the present invention;
[0017] Figure 3 for Figure 1 Enlarged cross-sectional view of section AA in the middle;
[0018] Figure 4 for Figure 1 Enlarged view of region a in the middle;
[0019] Figure 5 This is a perspective view of the present utility model;
[0020] Figure 6 This is an exploded view of the present invention;
[0021] Figure 7 This is a diagram showing the usage state of this utility model;
[0022] The components in the diagram are named as follows: 1. Strap; 2. Moving plate; 3. Positioning rod; 4. Fixing sleeve; 5. Fixing plate; 6. Positioning block; 7. Stop bar; 8. Clamp. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example
[0024] This embodiment describes a pediatric infusion arm sleeve, such as... Figure 1 , Figure 3 and Figure 6 As shown, it includes a horizontally arranged fixing plate 5. When in use, the fixing plate 5 is located below the palm and forearm, and is parallel and aligned with the palm and forearm. When the palm and forearm are in a straight position, the fixing plate 5 fits against the palm and forearm. In this embodiment, the fixing plate 5 is T-shaped, which can conform to the shape of the palm and forearm to reduce the space occupied by the fixing plate 5 when in use.
[0025] An anti-slip pad is fixed to the bottom of the fixing plate 5. The bottom of the anti-slip pad has anti-slip texture, such as... Figure 1 and Figure 5 As shown, the anti-slip mat is made of materials with a high coefficient of friction such as silicone and rubber. When the fixing plate 5 is placed on a flat surface such as a table or chair armrest, the anti-slip mat and anti-slip texture can increase the friction and prevent the fixing plate 5 placed on the flat surface from moving easily.
[0026] A fixing sleeve 4 is fixed to one end of the fixing plate 5 and wrapped around it to secure it to the forearm. The fixing sleeve 4 is made of materials such as cotton, linen, or fiber. Figure 3 and Figure 5 As shown, the two ends of the fixing sleeve 4 are provided with Velcro for connecting and adjusting the tightness. The two ends of the fixing sleeve 4 are connected by the cooperation of the hook and loop sides of the Velcro, and the inner diameter of the fixing sleeve 4 can be adjusted by changing the position of the hook and loop sides to accommodate forearms of different thicknesses. In this embodiment, the fixing sleeve 4 is fixed to the right end of the top of the fixing plate 5. In use, as... Figure 7 As shown, the fixation sleeve 4 is wrapped around the patient's forearm, and the two ends of the fixation sleeve 4 are connected by Velcro, thereby fixing the right end of the fixation plate 5 to the patient's forearm.
[0027] A movable plate 2, which is slidably fitted to and slides along the length of the fixed plate 5, is horizontally disposed at the other end of the fixed plate 5. Figure 1 and Figure 6As shown, a hole is provided on one side wall of the fixed plate 5 for independently inserting one end of the movable plate 2. A screw is inserted into the fixed plate 5 to lock the movable plate 2 after it has been moved. A threaded hole communicating with the hole is provided on the front side wall of the fixed plate 5. The screw is inserted into the threaded hole and the end of the screw rests on the front side wall of the movable plate 2. When the length of the patient's hand does not match the length of the device, the movable plate 2 can be moved. By extending and retracting the movable plate 2, the overall length of the device can be adjusted. By rotating the screw, the screw presses against the movable plate 2 to lock the movable plate 2 after it has been moved and retracted, so as to accommodate different hand lengths. Of course, the sliding fit between the movable plate 2 and the fixed plate 5 can also be achieved by using a slider and a groove. The slider is fixed on the movable plate 2, and a groove is provided on the fixed plate 5 for the slider to slide. When the movable plate 2 moves, the slider moves along the groove, thereby adjusting the overall length of the device.
[0028] A stop bar 7 is fixed to the side wall of the fixed plate 5 where the insertion hole is located. The stop bar 7 has a triangular cross-section and is positioned above the movable plate 2. Figure 1 , Figure 4 and Figure 6 As shown, the baffle 7 is mainly used to cover the corner between the moving plate 2 and the left side wall of the fixed plate 5, so as to prevent the skin of the palm from entering the gap and being pinched. The baffle 7 is made of rubber, silicone, latex and other materials, which can make the skin of the hand more comfortable when in contact.
[0029] Several positioning blocks 6 are fixed to the top of the movable plate 2 to block and position the webbing, such as... Figure 1 , Figure 5 and Figure 7 As shown, in this embodiment, two positioning blocks 6 are fixed to the top of the movable plate 2; as Figure 7 As shown, during use, the positioning block 6 engages between the patient's fingers and fits against the web of the fingers. The positioning block 6 blocks and positions the web of the fingers, thereby preventing the patient's palm from moving to the left (towards the end of the moving plate).
[0030] All positioning blocks 6 have an inwardly curved surface facing the finger webs. The curved surface can better conform to the shape of the finger web area to reduce patient discomfort during use. Soft pads are fixed on the curved surface. The soft pads are made of soft materials such as rubber, silicone, and foam to improve comfort.
[0031] The movable plate 2 is fixed with a strap 1 for wrapping and securing the fingers. The strap 1 is an existing product, mainly composed of a strap body and an adjustment component. It is commonly used in the automotive, aviation, medical, and everyday clothing industries. For example, some shoes use straps with Velcro instead of shoelaces for ease of wear. In this embodiment, the adjustment component of the strap 1 uses Velcro. After the positioning block 6 is engaged between the patient's fingers, the strap 1 covers the metacarpophalangeal joints, fixing the palm to the movable plate 2 through the strap 1. Physical restraint reduces metacarpophalangeal joint movement and avoids problems such as needle slippage. The fixed plate 5 and the movable plate 2 are fixed to the palm and forearm respectively by the fixed sleeve 4 and the strap 1 to restrict the child's wrist movement, keeping the palm and forearm straight. Physical restraint reduces hand joint movement and avoids problems such as needle slippage.
[0032] Two positioning rods 3 are hinged to the fixed plate 5 to block and position the palm near the wrist on both sides. Figure 1 , Figure 3 and Figure 6 As shown, the two positioning rods 3 are pivotally hinged to the front and rear side walls of the fixed plate 5, respectively, allowing the two positioning rods 3 to swing freely at different angles; as Figure 1 , Figure 2 and Figure 5 As shown, the two positioning rods 3 are fixed to the fixing sleeve 4. The two positioning rods 3 are fixed on the left side of the fixing sleeve 4. Therefore, when the two ends of the fixing sleeve 4 swing and wrap around the patient's forearm, it can drive the two positioning rods 3 to swing towards the forearm, so that the two positioning rods 3 fit against both sides of the wrist. In use, as... Figure 7 As shown, the two positioning rods 3 are respectively attached to both sides of the wrist. The two positioning rods 3 respectively block the radial and ulnar sides of the palm (the radial side of the palm refers to the thick raised area composed of muscles such as the abductor pollicis brevis and flexor pollicis brevis, which is directly connected to the wrist; the ulnar side of the palm is the raised area of the muscle group from below the little finger to the wrist, which is also adjacent to the wrist) to prevent the palm from moving towards the fixing sleeve 4.
[0033] All positioning rods 3 have an arc-shaped structure, such as Figure 3 , Figure 6 and Figure 7 As shown, the arc-shaped positioning rod 3 can better conform to the shape of the wrist, making it more comfortable for the patient to use. In addition, a protective pad is fixed on the inner circular surface of each positioning rod 3, which can protect the skin of the patient's wrist and prevent the positioning rod 3 from causing damage to the skin.
[0034] One of the positioning rods 3 is fixed with a clamp 8 for engaging the infusion tube, such as... Figure 3 and Figure 5As shown, a clamp 8 is fixed on the positioning rod 3 located on the front side. When the patient is receiving an infusion, the infusion tube can be clamped in the clamp 8 to fix the infusion tube. A rubber pad is fixed on the clamping surface of the clamp 8. Through the friction between the rubber pad and the infusion tube, the infusion tube can be effectively fixed to limit its movement.
[0035] In actual use, the fixing plate 5 and the moving plate 2 are attached to the lower part of the palm and forearm. The right end of the fixing plate 5 is fixed to the forearm through the fixing sleeve 4. When the two ends of the fixing sleeve 4 swing and wrap around the patient's forearm, it causes the two positioning rods 3 to swing towards the forearm, so that the two positioning rods 3 are attached to both sides of the wrist. The two positioning rods 3 respectively block the radial and ulnar sides of the palm. Then, the moving plate 2 is extended and retracted, so that the positioning block 6 is engaged between the patient's fingers. The positioning block 6 is attached to the web of the fingers, and the positioning block 6 blocks the web of the fingers. Thus, the palm is positioned by all the positioning rods 3 and positioning blocks 6. Figure 7 As shown, this prevents the palm from moving left and right, and also prevents the fixed plate 5 and the movable plate 2 from slipping off. Then, the strap 1 is placed over the metacarpophalangeal joints, and the palm is fixed to the movable plate 2 by the strap 1. The fixed plate 5 and the movable plate 2 are fixed to the palm and forearm by the fixed sleeve 4 and the strap 1, respectively, to restrict the child's wrist movement. This can keep the palm and forearm in a straight position for a long time and effectively. By physically restraining the hand joints, it reduces the movement of the hand joints and avoids problems such as slippage of the needle.
Claims
1. A pediatric infusion arm sleeve, comprising a horizontally arranged fixing plate (5), characterized in that: One end of the fixed plate (5) is fixed with a fixed sleeve (4) that is wrapped around and fixed to the forearm. The other end of the fixed plate (5) is horizontally provided with a movable plate (2) that slides along its length and is in sliding fit with it. Several positioning blocks (6) for blocking and positioning the webbed fingers are fixed on the top of the movable plate (2). A strap (1) for wrapping and fixing the palm is fixed on the movable plate (2). Two positioning rods (3) are hinged on the fixed plate (5) for blocking and positioning the palm on both sides near the wrist. The two positioning rods (3) are fixed to the fixed sleeve (4).
2. The pediatric infusion arm sleeve according to claim 1, characterized in that: The fixed plate (5) has an insertion hole on one side wall for independently inserting one end of the movable plate (2), and the fixed plate (5) is fitted with screws for locking the movable plate (2) after it has been moved.
3. The pediatric infusion arm sleeve according to claim 2, characterized in that: A baffle (7) is fixed on the side wall of the fixed plate (5) with an insertion hole. The baffle (7) has a triangular cross-section and is located above the movable plate (2).
4. The pediatric infusion arm sleeve according to claim 2, characterized in that: The bottom of the fixing plate (5) is fixed with an anti-slip pad, and the bottom of the anti-slip pad has anti-slip texture.
5. The pediatric infusion arm sleeve according to claim 1, characterized in that: All positioning blocks (6) have an inward-curved arc surface facing the finger webs, and a soft pad is fixed on the arc surface.
6. The pediatric infusion arm sleeve according to claim 1, characterized in that: All positioning rods (3) have an arc-shaped structure, and a protective pad is fixed on the inner circular surface of each positioning rod (3).
7. The pediatric infusion arm sleeve according to claim 1, characterized in that: One of the positioning rods (3) is fixed with a clamp (8) for engaging the infusion tube.
8. The pediatric infusion arm sleeve according to claim 1, characterized in that: Velcro is provided between the two ends of the fixing sleeve (4) for connecting and adjusting the tightness.