Remaining needle fixer for pediatric nursing

Abstract

The invention discloses a pediatric nursing indwelling needle fixer, and relates to the technical field of medical equipment, the pediatric nursing indwelling needle fixer comprises a base, a bandage and an upper baffle, the base is internally provided with a first auxiliary assembly, the bottom of the upper baffle is oppositely provided with attaching blocks attached to the upper side of the skin of a patient, the opposite sides of the attaching blocks on the two sides are provided with air bags, and the air bags are connected with the first auxiliary assembly. A positioning assembly used for fixing an indwelling needle is arranged on the upper baffle through a penetrating adjusting groove, and a second auxiliary assembly is arranged at the top of the upper baffle in a sliding mode; through cooperation of the first auxiliary assembly and the second auxiliary assembly, on the physiological level, the comfort level of the child patient is improved by rotating the massage wheels and driving the fan to accelerate air flow. And in the psychological level, animations can be played through the display screen to attract the attention of the child patient, so that the child patient is kept quiet in the infusion process, the occurrence of disordered movement conditions is reduced, the possibility that the child patient moves disorderly due to discomfort and boring is greatly reduced, and smooth treatment is powerfully guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an indwelling needle fixation device for pediatric nursing. Background Technology

[0002] The use of indwelling needles can reduce the pain and fear of injections caused by repeated venous punctures in children, alleviate the anxiety of parents, facilitate clinical medication administration, and reduce the workload of nurses and pain in children. Therefore, indwelling needles are widely used in clinical practice. For children, a special group, the length of time the indwelling needle is in place and the comfort of children are the most important issues for nurses and parents. These are also the hallmarks of successful use of indwelling needles and the prerequisites for their promotion.

[0003] Most existing indwelling needle fixators are relatively simple in design and have a single function, mainly focusing on fixing the indwelling needle. During prolonged fixation of the indwelling needle, children, due to discomfort or their active nature, find it difficult to remain still for extended periods. Existing fixators lack effective comfort design and cannot adequately accommodate the child's limb movements, leading to discomfort and restless movement. This restless movement can easily cause the indwelling needle to loosen, shift, or even dislodge, increasing the child's pain, potentially interrupting the infusion, affecting treatment effectiveness, and even causing serious complications such as local infection. Furthermore, existing indwelling needle fixators often obstruct the puncture site to some extent while fixing the needle. This makes it difficult for medical staff to directly and clearly observe the puncture site during rounds. The presence of abnormalities such as bleeding, effusion, redness, and swelling at the puncture site is crucial for the timely detection and management of indwelling needle-related complications. Therefore, this invention proposes an indwelling needle fixator for pediatric nursing. Summary of the Invention

[0004] The purpose of this invention is to provide a pediatric indwelling needle fixator to address the shortcomings of existing indwelling needle fixators, which are mostly simple in design and single in function, primarily focusing on fixing the indwelling needle. During prolonged fixation of the indwelling needle, children often find it difficult to remain still due to discomfort or their active nature. Existing fixators lack effective comfort design and cannot adequately accommodate the child's limb movements, leading to discomfort and restlessness. This restlessness can easily cause the indwelling needle to loosen, shift, or even dislodge, increasing the child's pain, potentially interrupting the infusion, affecting treatment efficacy, and even causing serious complications such as local infection. Furthermore, existing indwelling needle fixators often obstruct the puncture site to some extent while fixing the needle. This makes it difficult for medical staff to directly and clearly observe the puncture site during rounds. The presence of abnormalities such as bleeding, effusion, redness, and swelling at the puncture site is crucial for the timely detection and management of indwelling needle-related complications.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pediatric indwelling needle fixation device includes a base, a strap, and an upper baffle. The upper baffle has corresponding through grooves on both sides, and one side of the strap is fixedly connected to each through groove. The upper baffle is connected to the base via the strap. The base is horizontally placed and has a first auxiliary component inside. The bottom of the upper baffle has an adhesive block that conforms to the upper side of the patient's skin. Airbags are located on opposite sides of the adhesive blocks on both sides. A positioning component for fixing the indwelling needle is provided on the upper baffle through an adjustment groove. A second auxiliary component is slidably provided on the top of the upper baffle.

[0007] Optionally, the upper baffle has corresponding sliding grooves on both sides of its top for the second auxiliary component to slide, a hose fixing ring for fixing the hose is provided at the bottom of the rear side of the upper baffle, and a movable groove is provided at the bottom of the upper baffle laterally.

[0008] Optionally, the top of the base is provided with an arc-shaped surface for placing the patient's wrist. Two sets of first through holes are opened in the middle of the arc-shaped surface, and second through holes are opened on both sides of the arc-shaped surface with respect to the first through holes. Wind vanes facing each other are provided on both sides of the second through holes.

[0009] Optionally, the first auxiliary component includes a drive motor disposed inside the base. The output end of the drive motor is connected to a main gear. There are meshing driven gears on both sides of the main gear. A rotating shaft is connected to each of the driven gears on both sides. The other end of the rotating shaft is rotatably connected to the inside of the base. A corresponding massage roller is fixedly connected to the outside of the rotating shaft through the first through hole. Drive fans for improving patient comfort are distributed at the four corners inside the base.

[0010] Optionally, the base is provided with connecting shafts on both sides, and the other side of the strap is wrapped around the outside of the connecting shafts. The front end of the connecting shafts on both sides is provided with a first knob.

[0011] Optionally, the movable groove is equipped with a bidirectional lead screw, and the two sides of the bidirectional lead screw are connected to connecting blocks facing each other. The bottom of the connecting blocks is fixedly connected to the fitting block, and the bidirectional lead screw extends to the outside of the upper baffle and is connected to a second knob.

[0012] Optionally, the airbag is provided with an inflation valve on the rear side, and an air supply pipe is connected to each of the two inflation valves. A manual air pump is provided on the rear side of the upper baffle, and the other ends of the two air supply pipes are respectively connected to the output ends of the manual air pump.

[0013] Optionally, the positioning component includes a slide rod disposed in an adjustment groove, a spring rod slidably connected to the slide rod, a screw cap threaded to the upper end of the spring rod, a clamp for fixing the indwelling needle connected to the lower end of the spring rod, and a collar provided on the outside of the lower end of the spring rod, a connecting frame provided on the side of the collar, an installation ring provided on the front side of the connecting frame, and a sensor for monitoring bleeding and swelling at the puncture site mounted on the installation ring.

[0014] Optionally, the second auxiliary component includes sliding blocks slidably disposed in sliding grooves on both sides, each sliding block having a connecting rod at its top, the connecting rods on both sides being connected to a support plate, each support plate having an ear seat on its top side, a movable shaft being movably mounted between the ear seats on both sides, and a display screen being fixedly connected to the outer side of the movable shaft via a support.

[0015] The beneficial effects of this invention are:

[0016] 1. This invention, through the cooperation of the first and second auxiliary components, significantly improves the treatment experience and cooperation of children from both physiological and psychological perspectives. Physiologically, after the drive motor is activated, power is evenly transmitted to the rotating shafts on both sides through the meshing of the main and driven gears, driving the massage rollers to rotate and massage the child's wrist, effectively promoting blood circulation and relieving discomfort caused by prolonged fixation of the indwelling needle. Simultaneously, the drive fans distributed at the four corners inside the base accelerate airflow, creating convection that is then guided by the airflow vane, directing airflow towards the child's skin, removing heat and moisture from the skin surface, keeping the skin dry, and further enhancing the child's comfort. Psychologically, the display screen can play cartoons, nursery rhymes, and other content suitable for children, attracting their attention and keeping them quiet during infusion, reducing restlessness. This dual physiological and psychological care design greatly reduces the possibility of children moving around due to discomfort and boredom, effectively ensuring the smooth progress of treatment.

[0017] 2. In this invention, by combining a positioning component with a sensor, medical staff can make initial adjustments by sliding a spring rod on the slide bar according to the position of the indwelling needle. When the clamping block contacts the indwelling needle, the spring is compressed to a certain extent to achieve elastic fixation. Then, by tightening the cap, the position of the spring rod is fixed, ensuring that the indwelling needle is firmly fixed on the child's skin. Simultaneously, the sensor installed on the mounting ring can monitor bleeding, swelling, and other conditions at the puncture site in real time, and will move synchronously with the position adjustment of the positioning component to ensure the accuracy of monitoring. Once an abnormality occurs, the sensor will promptly send a signal to alert medical staff to take action, effectively avoiding serious consequences caused by the failure to detect abnormalities at the puncture site in a timely manner, and providing strong protection for the child's treatment safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an indwelling needle fixation device for pediatric nursing according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of an indwelling needle fixation device for pediatric nursing according to the present invention from another perspective;

[0020] Figure 3 This is a front view of the present invention;

[0021] Figure 4 This is a schematic diagram of the base structure in this invention;

[0022] Figure 5 This is a schematic diagram of the structure of the first auxiliary component in this invention;

[0023] Figure 6 This is a schematic diagram of the positioning plate in this invention;

[0024] Figure 7 This is a schematic diagram of the airbag structure in this invention;

[0025] Figure 8 This is a cross-sectional view of the positioning plate in this invention;

[0026] Figure 9 This is a schematic diagram of the structure of the second auxiliary component in this invention;

[0027] Figure 10 for Figure 9 Enlarged view of point A in the middle.

[0028] The numbers on the map are:

[0029] 1. Base; 101. Arc-shaped surface; 102. First through hole; 103. Second through hole; 104. Wind vane;

[0030] 2. First auxiliary component; 201. Drive motor; 202. Main gear; 203. Driven gear; 204. Rotating shaft; 205. Massage roller; 206. Drive fan;

[0031] 3. Strap; 301. Connecting shaft; 302. First knob;

[0032] 4. Upper baffle; 401. Through groove; 402. Sliding groove; 403. Adjusting groove; 404. Hose fixing ring; 405. Movable groove;

[0033] 5. Adhesive block; 501. Connecting block; 502. Two-way lead screw; 503. Second knob;

[0034] 6. Airbag; 601. Inflation valve; 602. Air supply pipe; 603. Manual air pump;

[0035] 7. Positioning assembly; 701. Slide rod; 702. Spring rod; 703. Rotary cap; 704. Collar; 705. Clamping block; 706. Connecting frame; 707. Mounting ring; 708. Sensor;

[0036] 8. Second auxiliary component; 801. Sliding block; 802. Connecting rod; 803. Bearing plate; 804. Ear seat; 805. Movable shaft; 806. Display screen. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] The preferred embodiment of the device of the present invention will be described below.

[0039] Example 1:

[0040] As attached Figure 1 To be continued Figure 10 As shown, this invention provides a pediatric indwelling needle fixation device, including a base 1, a strap 3, and an upper baffle 4. The upper baffle 4 has corresponding through grooves 401 on both sides, and one side of the strap 3 is fixedly connected to each through groove 401. The upper baffle 4 is connected to the base 1 via the strap 3. Connecting shafts 301 are rotatably mounted on both sides of the base 1. The other side of the strap 3 is wrapped around the outside of the connecting shafts 301. A first knob 302 is provided at the front end of each connecting shaft 301. When the first knob 302 is rotated clockwise, the connecting shaft 301 rotates, wrapping the strap 3 around the connecting shaft 301. 01. Tighten the strap 3 to more tightly fix the upper baffle 4 and the base 1 to the child's limb; when the first knob 302 is rotated counterclockwise, the strap 3 is loosened, which facilitates the installation and removal of the fixation device. The base 1 is placed horizontally. The base 1 is equipped with a first auxiliary component 2. The bottom of the upper baffle 4 is provided with an adhesive block 5 that fits against the upper side of the patient's skin. Airbags 6 are provided on the opposite sides of the adhesive blocks 5. The upper baffle 4 is provided with a positioning component 7 for fixing the indwelling needle through the through adjustment groove 403. The top of the upper baffle 4 is provided with a second auxiliary component 8.

[0041] The upper baffle 4 has corresponding sliding grooves 402 on both sides of the top for the second auxiliary component 8 to slide. The lower rear side of the upper baffle 4 has a hose fixing ring 404 for fixing the hose. The hose fixing ring 404 is used to fix the hose of the indwelling needle to prevent the hose from shaking or tangling and to ensure the smooth progress of the infusion process. The bottom of the upper baffle 4 has a horizontal movable groove 405. The movable groove 405 provides space for the adjustment of the bonding block 5, so that the bonding block 5 can be adjusted in position according to the actual situation.

[0042] Example 2:

[0043] As attached Figure 4 , Figure 5 and appendix Figure 9 As shown, this embodiment is basically the same as the previous embodiment, except that the top of the base 1 is provided with an arc-shaped surface 101 for placing the patient's wrist. Two sets of first through holes 102 are opened in the middle of the arc-shaped surface 101. The first through holes 102 provide working space for the massage roller 205. The arc-shaped surface 101 is provided with second through holes 103 on both sides of the first through holes 102. The second through holes 103 on both sides are provided with opposing air vanes 104. The design of the second through holes 103 and the air vanes 104 can guide the direction of air flow, so that the air can act more effectively on the child's skin and enhance the ventilation effect.

[0044] The first auxiliary component 2 includes a drive motor 201 disposed inside the base 1. The output end of the drive motor 201 is connected to a main gear 202. The main gear 202 has meshing driven gears 203 on both sides. Rotating shafts 204 are connected to both driven gears 203. The other end of the rotating shafts 204 is rotatably connected to the inside of the base 1. A corresponding massage roller 205 is fixedly connected to the outside of the rotating shafts 204 through the first through hole 102. Drive fans 206 for improving patient comfort are distributed at the four corners inside the base 1.

[0045] The second auxiliary component 8 includes sliding blocks 801 slidably disposed in the sliding grooves 402 on both sides. Each sliding block 801 has a connecting rod 802 at its top. Both connecting rods 802 are connected to a support plate 803. Each support plate 803 has an ear seat 804 on both sides at its top. A movable shaft 805 is movably mounted between the ear seats 804. A display screen 806 is fixedly connected to the outer side of the movable shaft 805 via a support.

[0046] As can be seen from the above, when the drive motor 201 is started, its output end drives the main gear 202 to rotate. Since there are driven gears 203 meshing with the main gear 202 on both sides, the power is evenly transmitted to the rotating shafts 204 on both sides through this gear transmission mechanism. Massage rollers 205 are fixed on the outside of the rotating shafts 204 corresponding to the first through hole 102. As the drive motor 201 continues to run, the massage rollers 205 begin to rotate, massaging the child's wrist placed on the arc surface 101, thereby promoting blood circulation and effectively relieving the discomfort caused by the long-term fixation of the indwelling needle in the child's wrist. At the same time, the drive fans 206 distributed at the four corners inside the base 1 start to work. The drive fans 206 on both sides accelerate the airflow, causing the air to form convection inside the base 1 and move upward. Under the guidance of the air vane 104 at the second through hole 103 on the arc surface 101, the convective air flows to the child's skin, taking away the heat and moisture on the skin surface, keeping the skin dry, and further improving the child's comfort.

[0047] Simultaneously, by operating the sliding block 801 to slide freely within the sliding grooves 402 on both sides, it can drive the connecting rod 802 at its top and the commonly connected support plate 803 to move, thereby adjusting the position of the support plate 803. When the movable shaft 805 is rotated, it will cause the angle of the display screen 806 fixedly connected to its outer side through the support to change, thereby adjusting the tilt angle of the display screen 806 to meet the viewing needs of different children. The display screen 806 can play cartoons, nursery rhymes, and other content suitable for children to watch, thereby attracting their attention and keeping them quiet during the infusion process, reducing the occurrence of restlessness. Through the cooperation of the first auxiliary component 2 and the second auxiliary component 8, the first auxiliary component 2 improves the comfort of the child through massage and air convection, while the second auxiliary component 8 attracts the child's attention through the display screen 806. The two work together to address both physiological and psychological aspects, greatly reducing the possibility of the child restless due to discomfort and boredom, ensuring the smooth progress of the treatment.

[0048] Example 3:

[0049] As attached Figure 6 To be continued Figure 10 As shown, this embodiment is basically the same as the previous embodiment, except that a bidirectional lead screw 502 is installed in the movable groove 405, and connecting blocks 501 are connected to both sides of the bidirectional lead screw 502. The bottom of the connecting blocks 501 is fixedly connected to the fitting block 5, and the bidirectional lead screw 502 extends to the outside of the upper baffle 4 and is connected to a second knob 503.

[0050] An inflation valve 601 is provided on the rear side of the airbag 6, and an air supply pipe 602 is connected to both sides of the inflation valve 601. A manual air pump 603 is provided on the rear side of the upper baffle 4, and the other ends of the two air supply pipes 602 are respectively connected to the two output ends of the manual air pump 603.

[0051] The positioning component 7 includes a slide rod 701 disposed in the adjustment groove 403, a spring rod 702 slidably connected to the slide rod 701, a screw cap 703 threadedly connected to the upper end of the spring rod 702, a clamping block 705 for fixing the indwelling needle connected to the lower end of the spring rod 702, and a collar 704 provided on the outer side of the lower end of the spring rod 702. A connecting bracket 706 is provided on the side of the collar 704, and an mounting ring 707 is provided on the front side of the connecting bracket 706. A sensor 708 for monitoring bleeding and swelling at the puncture site is mounted on the mounting ring 707.

[0052] As can be seen from the above, before the strap 3 is tightened, the bidirectional screw 502 is driven to rotate by the second knob 503, which in turn drives the connecting blocks 501 on both sides to move in opposite directions. When the connecting blocks 501 on both sides approach each other, they will drive the adhesive blocks 5 fixed at their bottom to approach synchronously, thereby reducing the distance between the two adhesive blocks 5. The adhesive blocks 5 are then attached to the upper side of the child's skin, and then the airbag 6 is used to compress and fix them.

[0053] When it is necessary to inflate the airbag 6 to better conform to the child's skin and provide fixation and cushioning, medical staff press the manual air pump 603. The manual air pump 603 is connected to the inflation valve 601 on the rear side of the airbag 6 through the air supply tubes 602 on both sides. Pressing the manual air pump 603 will cause air to enter the inflation valve 601 from the output end of the air pump through the air supply tubes 602, and then inflate the airbag 6. As air is continuously inflated, the airbag 6 begins to expand and gradually fits tightly against the child's skin, while the positioning component 7 fixes the indwelling needle.

[0054] The positioning component 7 is laterally adjusted based on the position of the indwelling needle. Medical staff can initially adjust the position of the spring rod 702 by sliding it on the slide rod 701 to adapt to the approximate position of the indwelling needle. When the clamp 705 contacts the indwelling needle, the spring will be compressed to a certain extent, thereby achieving elastic fixation of the indwelling needle. Then, by turning the knob cap 703 to the upper end face of the upper baffle 4, the position of the spring rod 702 is fixed, thus ensuring that the indwelling needle is fixed on the child's skin. Then, through the sensor 708 installed on the mounting ring 707, during the fixation of the indwelling needle, the sensor 708 will monitor the bleeding, swelling, etc. at the puncture site in real time. At the same time, the sensor 708 will also move synchronously with the position adjustment of the positioning component 7 to perform real-time monitoring so that a signal can be sent in time to remind medical staff to deal with any abnormalities.

[0055] In use, first place the base 1 horizontally under the child's limb, with the child's wrist resting on the arc-shaped surface 101 at the top of the base 1. Then, place the upper baffle 4 above the wrist. By rotating the first knobs 302 on both sides clockwise, the connecting shaft 301 is rotated, and the strap 3 is wrapped around the connecting shaft 301 to tighten it, thus attaching the upper baffle 4 to the child's limb, allowing the adhesive block 5 to initially contact the upper side of the child's skin. Medical staff can then adjust the distance between the two adhesive blocks 5 by rotating the second knob 503, depending on the size of the child's limb. When the second knob 503 is rotated clockwise, the bidirectional lead screw 502 rotates, causing the connecting blocks 501 on both sides of the bidirectional lead screw 502 to move closer together, which in turn causes the adhesive blocks 5 fixed at its bottom to move closer simultaneously, reducing the distance between the two adhesive blocks 5. When the second knob 503 is rotated counterclockwise, the connecting blocks 501 move further apart, and the adhesive blocks 5 also separate, increasing the distance between them until the spacing of the adhesive blocks 5 is suitable for the child's limb. After the adhesive blocks 5 are attached to the upper side of the child's skin, the medical staff presses the manual air pump 603. The manual air pump 603 is connected to the inflation valve 601 on the rear side of the air bag 6 through the air supply tubes 602 on both sides. Pressing the manual air pump 603 will cause air to enter the inflation valve 601 from the output end of the air pump through the air supply tubes 602, and then inflate the air bag 6. As air is continuously injected, the airbag 6 begins to inflate, gradually pressing against the child's skin for better fixation and cushioning. Once fixed, medical staff adjust the position of the spring rod 702 on the slide rod 701 according to the approximate position of the indwelling needle. The clamp 705 is then aligned with the indwelling needle and brought into contact; the spring will compress to a certain extent, thus achieving elastic fixation of the indwelling needle. Then, the cap 703 is rotated to the upper end of the upper baffle 4 to fix the position of the spring rod 702, ensuring the indwelling needle is securely fixed to the child's skin. During the fixation process, the sensor 708 mounted on the installation ring 707 monitors the puncture site for bleeding, swelling, and other abnormalities in real time. Simultaneously, the sensor 708 moves synchronously with the position adjustment of the positioning component 7, providing real-time monitoring. If abnormalities such as bleeding or swelling occur, the sensor 708 will promptly send a signal to alert medical staff for intervention. After the indwelling needle is fixed in position, the drive motor 201 is started by setting the first auxiliary component 2 and the second auxiliary component 8, and its output end drives the main gear 202 to rotate. Since there are driven gears 203 meshing with the main gear 202 on both sides, the power is evenly transmitted to the rotating shafts 204 on both sides through this gear transmission mechanism.A massage roller 205 is fixed to the outside of the rotating shaft 204 at the position corresponding to the first through hole 102. As the drive motor 201 continues to run, the massage roller 205 begins to rotate, massaging the child's wrist placed on the arc surface 101, promoting blood circulation and relieving the discomfort caused by the prolonged fixation of the indwelling needle in the child's wrist. At the same time, the drive fans 206 distributed at the four corners inside the base 1 start to work. The drive fans 206 on both sides accelerate the airflow, causing the air to form convection inside the base 1 and move upward. Then, under the guidance of the air vane 104 at the second through hole 103 on the arc surface 101, the convective air flows to the child's skin, taking away heat and moisture from the skin surface, keeping the skin dry and improving the child's comfort. Then, by operating the sliding block 801 to slide freely in the sliding grooves 402 on both sides, the connecting rod 802 at its top and the supporting plate 803 connected together are moved, thereby adjusting the position of the supporting plate 803 so that the display screen 806 is in a position suitable for the child to watch. Furthermore, by rotating the movable shaft 805, the angle of the display screen 806, which is fixedly connected to its outer side by the support, is changed, adjusting the tilt angle of the display screen 806 to meet the needs of different children watching the display screen 806, thereby attracting the child's attention and reducing their fidgeting caused by boredom or discomfort.

[0056] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A pediatric nursing indwelling needle fixation device, characterized in that: The device includes a base (1), a strap (3), and an upper baffle (4). The upper baffle (4) has corresponding through grooves (401) on both sides. The strap (3) is fixedly connected to one side of the through grooves (401) on both sides. The upper baffle (4) is connected to the base (1) through the strap (3). The base (1) is placed horizontally. The base (1) has a first auxiliary component (2) inside. The bottom of the upper baffle (4) has an adhesive block (5) that fits against the upper side of the patient's skin. The opposite sides of the adhesive blocks (5) on both sides have airbags (6). The upper baffle (4) has a positioning component (7) for fixing the indwelling needle through an adjustment groove (403). The top of the upper baffle (4) has a second auxiliary component (8) that slides.

2. The indwelling needle fixation device for pediatric nursing according to claim 1, characterized in that: The upper baffle (4) has corresponding sliding grooves (402) on both sides of the top for the second auxiliary component (8) to slide. The lower rear side of the upper baffle (4) has a hose fixing ring (404) for fixing the hose. The lower bottom of the upper baffle (4) has a horizontally opening movable groove (405).

3. The indwelling needle fixation device for pediatric nursing according to claim 1, characterized in that: The base (1) has an arc-shaped surface (101) at the top for placing the patient's wrist. Two sets of first through holes (102) are provided in the middle of the arc-shaped surface (101). Second through holes (103) are provided on both sides of the arc-shaped surface (101) about the first through holes (102), and wind vanes (104) facing each other are provided on the second through holes (103) on both sides.

4. The indwelling needle fixation device for pediatric nursing according to claim 1, characterized in that: The first auxiliary component (2) includes a drive motor (201) disposed inside the base (1). The output end of the drive motor (201) is connected to a main gear (202). The main gear (202) has meshing slave gears (203) on both sides. Rotating shafts (204) are connected to both slave gears (203). The other end of the rotating shaft (204) is rotatably connected to the inner side of the base (1). A corresponding massage wheel (205) is fixedly connected to the outside of the rotating shaft (204) about the first through hole (102). Drive fans (206) for improving patient comfort are distributed at the four corners inside the base (1).

5. A pediatric nursing indwelling needle fixator according to claim 1, characterized in that: The base (1) has a connecting shaft (301) rotatably mounted on both sides. The other side of the strap (3) is wrapped around the outside of the connecting shaft (301). The front end of the connecting shaft (301) on both sides is provided with a first knob (302).

6. A pediatric nursing indwelling needle fixator according to claim 2, characterized in that: The movable groove (405) is equipped with a bidirectional lead screw (502), and the two sides of the bidirectional lead screw (502) are connected to connecting blocks (501) facing each other. The bottom of the connecting block (501) is fixedly connected to the fitting block (5). The bidirectional lead screw (502) extends to the outside of the upper baffle (4) and is connected to a second knob (503).

7. A pediatric nursing indwelling needle fixator according to claim 1, characterized in that: The airbag (6) is provided with an inflation valve (601) on the rear side, and an air supply pipe (602) is connected to both sides of the inflation valve (601). A manual air pump (603) is provided on the rear side of the upper baffle (4), and the other ends of the air supply pipes (602) on both sides are respectively connected to the output ends of the manual air pump (603).

8. A pediatric nursing indwelling needle fixator according to claim 1, characterized in that: The positioning component (7) includes a slide rod (701) disposed in the adjustment groove (403), a spring rod (702) slidably connected to the slide rod (701), a screw cap (703) threadedly connected to the upper end of the spring rod (702), a clamp (705) for fixing the indwelling needle connected to the lower end of the spring rod (702), and a collar (704) provided on the lower end of the spring rod (702), a connecting frame (706) provided on the side of the collar (704), an mounting ring (707) provided on the front side of the connecting frame (706), and a sensor (708) for monitoring bleeding and swelling at the puncture site mounted on the mounting ring (707).

9. A pediatric nursing indwelling needle fixator according to claim 1, characterized in that: The second auxiliary component (8) includes a sliding block (801) slidably disposed in the sliding grooves (402) on both sides. The top of each sliding block (801) on both sides is provided with a connecting rod (802). The connecting rods (802) on both sides are connected to a support plate (803). The top of the support plate (803) on both sides is provided with an ear seat (804). A movable shaft (805) is movably installed between the ear seats (804) on both sides. The outer side of the movable shaft (805) is fixedly connected to a display screen (806) through a support.

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