Infant venous indwelling needle protection device for pediatric department

Abstract

The invention provides a pediatric infant venous indwelling needle protection device which comprises an elastic protection cover and a hand pinching type inflation and deflation assembly, a notch is integrally formed in the top of the elastic protection cover, a cavity is formed in the elastic protection cover, and a plurality of cylindrical bag type assemblies arranged at intervals are installed on the inner wall of the elastic protection cover in a circle; the cylindrical bag type assembly is communicated with the cavity and comprises rod type protection pieces arranged at the two ends of the cylindrical bag type assembly. According to the infant venous indwelling needle protection device for the pediatric department, the elastic protection cover is arranged on the infant needle retaining part in a sleeving mode, the bag type magnetic attraction assembly on the fixing block is used for tightening the notch, the cavity is inflated through the hand pinching type inflation and deflation assembly, the cylindrical bag type assembly is expanded, and a protection layer attached to the hand of an infant is formed; meanwhile, the cylindrical bag type assembly can buffer impact, the elastic ringing piece makes a sound to remind nursing personnel after being vibrated, the remaining needle is effectively protected, and the safety of a child patient is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pediatrics, and particularly relates to a protective device for an intravenous indwelling needle for infants and young children in pediatrics. Background Art

[0002] In pediatric clinical nursing, the intravenous indwelling needle, as an important infusion tool, has been widely used. Its main structure includes an outer catheter and an inner puncture needle core. The puncture needle core is used for puncturing blood vessels, and the outer catheter is used for indwelling in blood vessels to achieve operations such as continuous infusion or multiple blood samplings. The cannula of the intravenous indwelling needle is usually made of soft medical silicone or polyurethane material, which can float with the blood flow after entering the blood vessel, reducing mechanical damage to the inner wall of the blood vessel, thus effectively protecting the blood vessels of children. The blood vessels of infants and young children are relatively thin and fragile. Repeated punctures will not only increase the pain of children, but also may lead to complications such as blood vessel damage, stasis, and hematoma. The use of intravenous indwelling needles can reduce the pain caused by frequent punctures and reduce the fear and anxiety of children;

[0003] However, in the prior art, the intravenous indwelling needle is usually fixed with a transparent dressing. Due to their young age, infants and young children have not fully formed their self-awareness, are active and lack self-protection awareness, and are prone to scratching the indwelling needle with their hands, resulting in tube folding, blockage, or detachment of the indwelling needle. Summary of the Invention

[0004] The present invention provides a protective device for an intravenous indwelling needle for infants and young children in pediatrics, which realizes the fixation and protection of the indwelling needle through an elastic protective cover, a capsule magnetic attraction assembly, and a columnar capsule assembly, and reminds the caregiver through an elastic ringing member.

[0005] In order to achieve the above object, the present invention provides the following technical solution: A protective device for an intravenous indwelling needle for infants and young children in pediatrics, including an elastic protective cover and a hand-squeezed inflation and deflation assembly:

[0006] A notch is integrally formed at the top of the elastic protective cover. A cavity is formed inside the elastic protective cover. A plurality of columnar capsule assemblies arranged at intervals are installed on the inner wall of the elastic protective cover in a circle, and the columnar capsule assemblies are communicated with the cavity. The columnar capsule assembly includes rod-shaped protective members arranged at both ends thereof;

[0007] Fixing blocks are symmetrically installed on the elastic protective cover at the notch position. On both adjacent sides of the two fixing blocks, capsule magnetic attraction assemblies communicated with the cavity are installed. Notches are formed at both ends of the fixing block, and elastic ringing members are installed in the notches. The hand-squeezed inflation and deflation assembly is used to supply air to the cavity;

[0008] When the hand-squeezed inflation and deflation assembly supplies air to the cavity, the gas enters the columnar capsule assembly to make it expand, the rod-shaped protective member moves outward, and at the same time, the gas enters the capsule magnetic attraction assembly to apply pressure to it.

[0009] Preferably, the cylindrical capsule assembly further includes capsule columns. A plurality of spaced capsule columns are installed on the inner wall of the elastic protective cover in a circle. Two rod-shaped protective members are respectively arranged at both ends of the capsule columns. A ventilation shaft communicating with the inner cavity of the elastic protective cover is connected to the middle of the capsule columns.

[0010] Preferably, the rod-shaped protective member includes a piston and an elastic rod. Pistons are arranged at both ends inside the capsule columns. Elastic rods are installed at the ends of the two pistons away from each other. The two elastic rods respectively slide through both ends of the capsule columns.

[0011] Preferably, the capsule magnetic attraction assembly includes an airbag member and a magnetic attraction member. Installation grooves are respectively opened on the adjacent sides of the two fixed blocks. An airbag member communicating with the cavity is installed in the installation grooves. The two magnetic attraction members are respectively arranged on the adjacent sides of the two fixed blocks. The two magnetic attraction members are respectively connected to the corresponding airbag members.

[0012] Preferably, the airbag member includes an airbag cylinder. The airbag cylinder is installed in the installation groove. One end of the airbag cylinder is connected to a trachea. The end of the trachea away from the airbag cylinder passes through the outer wall of the elastic protective cover and communicates with the cavity. The magnetic attraction member is connected to the other end of the airbag member.

[0013] Preferably, the magnetic attraction member includes a magnetic block and a connecting rod. The connecting rod is installed at the other end of the airbag cylinder. The magnetic block is installed at the end of the connecting rod away from the airbag cylinder.

[0014] Preferably, the elastic ringing member includes a weighted ringing member and two springs. The two springs are respectively connected to the top and bottom in the notch. The weighted ringing member is connected between the two springs.

[0015] Preferably, the weighted ringing member includes a weight block and a bell. The weighted ringing member is connected between the two springs. An assembly cavity is formed in the weighted ringing member. The bell is installed in the assembly cavity.

[0016] Preferably, the hand-squeezed charging and discharging assembly includes a charging and discharging bladder ball and a hose. A U-shaped seat is installed at the bottom of the elastic protective cover. A storage chamber is integrally formed in the U-shaped seat. The hose is arranged in the storage chamber. One end of the hose is connected to the outer periphery of the elastic protective cover and communicates with the cavity inside the elastic protective cover. The charging and discharging bladder ball is connected to the other end of the hose. A suction cup is installed at the bottom of the U-shaped seat.

[0017] Preferably, arc-shaped warming components are installed on both inner walls of the U-shaped seat;

[0018] The arc-shaped warm component includes an arc-shaped cover. Arc-shaped covers are installed on the inner walls of both sides of the U-shaped seat. An arc-shaped bag is installed inside the arc-shaped cover. An inlet shaft communicating with the arc-shaped bag is installed at the top of the arc-shaped cover. A first sealing plug is inserted into the inlet shaft. An outlet shaft communicating with the arc-shaped bag is installed at the bottom of the arc-shaped cover. A second sealing plug is inserted into the bottom of the outlet shaft.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, the elastic protective cover can be sleeved on the indwelling needle part of the infant, and then pressure is applied to the two fixing blocks on the elastic protective cover, so that the two fixing blocks approach each other, and the capsule-type magnetic attraction components on the two fixing blocks are adsorbed together, thereby tightening the notch on the elastic protective cover. During this process, the gas can be guided into the cavity in the elastic protective cover through the hand-squeezed charging and discharging component. The gas entering the cavity is then diverted into multiple columnar capsule-type components and the capsule-type magnetic attraction components. After the gas enters the columnar capsule-type component, it immediately expands, and the rod-shaped protective parts at both ends of the columnar capsule-type component move outward to form a protection at the infant's wrist. After the columnar capsule-type component expands, it fits with the infant's hand to form a protection. After the gas enters the capsule-type magnetic attraction component, the tightening force between the two capsule-type magnetic attraction components can be increased, preventing the infant's hand from swinging randomly and detaching the elastic protective cover from the hand;

[0021] 2. When the infant shakes the elastic protective cover randomly and hits other objects, the columnar capsule-type component on the inner wall of the elastic protective cover can protect the infant's hand to prevent the impact force from damaging the indwelling needle part. And after the elastic protective cover is vibrated, the vibration force can be transmitted to the elastic bell component, and after the elastic bell component receives the vibration force, it can emit a sound to remind the caregiver to pay attention to the infant's hand;

[0022] 3. When infusing fluid for the infant, the infusion tube part of the infusion can be placed in the arc-shaped bag, and then the first sealing plug on the inlet shaft is opened, the hot water tube is inserted into the inlet shaft, and hot water is introduced into the arc-shaped bag. After the hot water is introduced into the arc-shaped bag, the first sealing plug can be re-inserted into the inlet shaft, thereby heating the infusion tube and reducing the discomfort of the infant during infusion. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of a pediatric infant indwelling needle protection device proposed by the present invention;

[0025] Figure 2 This is a schematic structural diagram of the cylindrical capsule component of the present invention;

[0026] Figure 3 This is a schematic structural diagram of the capsule magnetic attraction component of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the airbag component and the magnetic attraction component of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the elastic ringing component of the present invention;

[0029] Figure 6 This is a schematic structural diagram of the hand-squeezed charging and discharging component of the present invention;

[0030] Figure 7 This is a schematic structural diagram of the bottom of the support seat of the present invention;

[0031] Figure 8 This is a schematic structural diagram of the arc-shaped warming component of the present invention;

[0032] Reference numerals in the figure: 1, elastic protective cover; 101, notch; 102, fixing block; 103, U-shaped seat; 104, notch; 105, suction cup; 2, cylindrical capsule component; 21, capsule column; 22, rod-shaped protective member; 221, piston; 222, elastic rod; 23, ventilation shaft; 3, capsule magnetic attraction component; 31, airbag component; 311, airbag cylinder; 312, air pipe; 32, magnetic attraction component; 321, magnetic block; 322, connecting rod; 4, elastic ringing component; 41, weighted ringing component; 411, weight block; 412, bell; 42, spring; 5, hand-squeezed charging and discharging component; 51, charging and discharging bladder ball; 52, hose; 6, arc-shaped warming component; 61, arc-shaped cover; 62, arc-shaped bag; 63, water inlet shaft; 631, first sealing plug; 64, water outlet shaft; 641, second sealing plug. Detailed implementation manners

[0033] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] According to Figures 1 to 8 shown, a protective device for pediatric infant intravenous indwelling needles includes an elastic protective cover 1 and a hand-squeezed charging and discharging component 5:

[0035] A notch 101 is integrally formed at the top of the elastic protective cover 1. A cavity is formed inside the elastic protective cover 1. A plurality of spaced cylindrical bladder components 2 are installed around the inner wall of the elastic protective cover 1, and the cylindrical bladder components 2 communicate with the cavity. The cylindrical bladder component 2 includes rod-shaped protective members 22 provided at both ends thereof.

[0036] Fixed blocks 102 are symmetrically installed on the elastic protective cover 1 at the position of the notch 101. Bladder magnetic attraction components 3 communicating with the cavity are installed on adjacent sides of the two fixed blocks 102. Notches 104 are formed at both ends of the fixed block 102, and elastic ringer components 4 are installed in the notches 104. A hand-squeezed charging and discharging component 5 is used to supply air to the cavity.

[0037] When the hand-squeezed charging and discharging component 5 supplies air to the cavity, the gas enters the cylindrical bladder component 2 to make it expand, and the rod-shaped protective member 22 moves outward. At the same time, the gas enters the bladder magnetic attraction component 3 to apply pressure to it.

[0038] The hand-squeezed charging and discharging component 5 supplies air to the cavity inside the elastic protective cover 1. The gas enters the cylindrical bladder component 2, and the bladder column 21 of the cylindrical bladder component 2 expands, pushing the rod-shaped protective members 22 at both ends to move outward. At the same time, the gas enters the bladder magnetic attraction component 3 to apply pressure to it. The rod-shaped protective member 22 moves outward, which can form a protection at the wrist of a child to prevent foreign objects from directly contacting the indwelling needle site. After the bladder magnetic attraction component 3 is under pressure, the tightening force between the bladder magnetic attraction components 3 on the two fixed blocks 102 increases, which can prevent the elastic protective cover 1 from falling off the child's hand.

[0039] As Figure 1 shown in Figure 2 this embodiment, the cylindrical bladder component 2 further includes a bladder column 21. A plurality of spaced bladder columns 21 are installed around the inner wall of the elastic protective cover 1. Two rod-shaped protective members 22 are respectively arranged at both ends of the bladder column 21. A ventilation shaft 23 communicating with the cavity inside the elastic protective cover 1 is connected to the middle of the bladder column 21.

[0040] The ventilation shaft 23 conducts the gas in the cavity inside the elastic protective cover 1 into the bladder column 21, and the bladder column 21 expands, thereby driving the rod-shaped protective members 22 at both ends to act. The bladder column 21 is the main expanding part of the cylindrical bladder component 2. After its expansion, it can better fit with the child's hand, enhance the protection effect, and can more stably push the rod-shaped protective member 22 to move outward to expand the protection range.

[0041] As Figure 2 shown in

[0042] When the bladder column 21 expands, the internal gas pushes the piston 221. The piston 221 drives the elastic rod 222 to slide through both ends of the bladder column 21 and move outward. The outward movement of the elastic rod 222 forms a protective barrier. The piston 221 can ensure the stability of the gas push. The elasticity of the elastic rod 222 can adapt to the thickness of different children's wrists, improving the wearing comfort and the reliability of protection.

[0043] As Figure 3 shown, in this embodiment, the bladder magnetic attraction assembly 3 includes a bladder member 31 and a magnetic attraction member 32. Installation grooves are respectively formed on one adjacent side of the two fixing blocks 102. The bladder member 31 communicated with the cavity is installed in the installation groove. The two magnetic attraction members 32 are respectively arranged on one adjacent side of the two fixing blocks 102, and the two magnetic attraction members 32 are respectively connected to the corresponding bladder members 31.

[0044] Gas enters the bladder member 31, and the bladder member 31 expands, driving the connected magnetic attraction member 32 to act. The magnetic attraction members 32 on the two fixing blocks 102 approach and adsorb to each other. The magnetic attraction members 32 are adsorbed together to realize the tightening of the notch 101 on the elastic protective cover 1, further fixing the elastic protective cover 1, preventing the child's hand from breaking free, and at the same time forming a closer protection around the indwelling needle.

[0045] As Figure 3 shown, in this embodiment, the bladder member 31 includes a bladder cylinder 311. The bladder cylinder 311 is installed in the installation groove. One end of the bladder cylinder 311 is connected with an air pipe 312. The end of the air pipe 312 far away from the bladder cylinder 311 passes through the outer wall of the elastic protective cover 1 and is communicated with the cavity. The magnetic attraction member 32 is connected to the other end of the bladder member 31. Figure 4 Gas enters the bladder cylinder 311 through the air pipe 312, causing the bladder cylinder 311 to expand, and then pushing the magnetic attraction member 32 connected to the other end. The air pipe 312 ensures the stable delivery of gas to the bladder cylinder 311. The thrust generated by the expansion of the bladder cylinder 311 can effectively drive the magnetic attraction member 32, ensuring that the magnetic attraction members 32 accurately adsorb to each other and enhancing the stability of the fixation of the protection device.

[0046] Gas enters the bladder cylinder 311 through the air pipe 312, causing the bladder cylinder 311 to expand, and then pushing the magnetic attraction member 32 connected to the other end. The air pipe 312 ensures the stable delivery of gas to the bladder cylinder 311. The thrust generated by the expansion of the bladder cylinder 311 can effectively drive the magnetic attraction member 32, ensuring that the magnetic attraction members 32 accurately adsorb to each other and enhancing the stability of the fixation of the protection device.

[0047] As Figure 4 shown, in this embodiment, the magnetic attraction member 32 includes a magnetic block 321 and a connecting rod 322. The connecting rod 322 is installed at the other end of the bladder cylinder 311, and the magnetic block 321 is installed at the end of the connecting rod 322 far away from the bladder cylinder 311.

[0048] The expansion of the bladder cylinder 311 pushes the connecting rod 322, and the connecting rod 322 drives the magnetic block 321 to move, enabling the two magnetic blocks 321 to adsorb to each other. The connecting rod 322 transmits the expansion force of the bladder cylinder 311 to the magnetic block 321, and the magnetic blocks 321 are adsorbed together, strengthening the connection between the fixing blocks 102, thereby fixing the elastic protective cover 1 more firmly and improving the protection effect.

[0049] As Figure 3 shown in and Figure 5 shown in this embodiment, the elastic ringing member 4 includes a weighted ringing member 41 and two springs 42. The two springs 42 are respectively connected to the top and bottom inside the notch 104, and the weighted ringing member 41 is connected between the two springs 42.

[0050] When the elastic protective cover 1 is vibrated, the vibration is transmitted to the spring 42, and the spring 42 drives the weighted ringing member 41 to shake. The bell 412 inside the weighted ringing member 41 makes a sound. When the child shakes the elastic protective cover 1 and hits other objects, the elastic ringing member 4 makes a sound, reminding the caregiver to pay attention to the child's hand and check the child's condition in time to avoid accidental damage to the indwelling needle.

[0051] As Figure 5 shown in this embodiment, the weighted ringing member 41 includes a weight 411 and a bell 412. The weighted ringing member 41 is connected between the two springs 42. An assembly cavity is formed inside the weighted ringing member 41, and the bell 412 is installed in the assembly cavity.

[0052] The vibration is transmitted through the spring 42. The weight 411 increases the stability of the shaking, making it easier for the bell 412 to make a sound. The weight 411 enables the bell 412 to make a sound more stably during vibration, improving the accuracy and timeliness of the reminder and ensuring that the caregiver can promptly detect abnormal movements of the child's hand.

[0053] As Figure 1 and Figure 6 shown in and Figure 7 shown in this embodiment, the hand-squeezed charging and discharging assembly 5 includes a charging and discharging bladder 51 and a hose 52. A U-shaped seat 103 is installed at the bottom of the elastic protective cover 1. A storage chamber is integrally formed inside the U-shaped seat 103. The hose 52 is arranged inside the storage chamber. One end of the hose 52 is connected to the outer periphery of the elastic protective cover 1 and is communicated with the cavity inside the elastic protective cover 1. The charging and discharging bladder 51 is connected to the other end of the hose 52. A suction cup 105 is installed at the bottom of the U-shaped seat 103.

[0054] By squeezing the charging and discharging bladder 51, gas enters the cavity of the elastic protective cover 1 through the hose 52. The suction cup 105 at the bottom of the U-shaped seat 103 can adsorb on the placement plane to fix the protection device. The hand-squeezed charging and discharging assembly 5 is convenient to operate, can provide gas for the protection device in time, and realizes the movement of each component. The suction cup 105 can prevent the protection device from moving randomly during use and ensure the stability of the protection.

[0055] As Figure 6 shown in and Figure 8 shown in this embodiment, arc-shaped warming components 6 are installed on both inner walls of the U-shaped seat 103;

[0056] The arc-shaped warm component 6 includes an arc-shaped cover 61. The arc-shaped covers 61 are installed on the inner walls of both sides of the U-shaped seat 103. An arc-shaped bag 62 is installed inside the arc-shaped cover 61. An inlet water shaft 63 communicating with the arc-shaped bag 62 is installed at the top of the arc-shaped cover 61. A first sealing plug 631 is inserted on the inlet water shaft 631. An outlet water shaft 64 communicating with the arc-shaped bag 62 is installed at the bottom of the arc-shaped cover 61. A second sealing plug 641 is inserted at the bottom of the outlet water shaft 64.

[0057] Open the first sealing plug 631 on the inlet water shaft 63, inject hot water into the arc-shaped bag 62 through the inlet water shaft 63. After closing the first sealing plug 631, the hot water in the arc-shaped bag 62 heats the infusion tube placed therein. When draining water is needed, open the second sealing plug 641 and drain the hot water through the outlet water shaft 64. The arc-shaped warm component 6 can reduce the discomfort of young children during infusion, improve the comfort of young children, and also help to ensure the smoothness of infusion.

[0058] The specific working principle of the present invention is as follows:

[0059] Put the elastic protective cover 1 on the indwelling needle part of the young child, press the two fixing blocks 102 to make them approach each other. The airbag part 31 in the capsule magnetic attraction component 3 expands under the action of gas, driving the magnetic blocks 321 in the magnetic attraction part 32 to adsorb each other, tightening the notch 101, fixing the elastic protective cover 1. At the same time, the inflation and deflation bladder 51 of the hand-squeezed inflation and deflation component 5 is squeezed, and the gas enters the cavity of the elastic protective cover 1 through the hose 52. The gas entering the cavity enters the bladder column 21 of the columnar capsule component 2 through the ventilation shaft 23. The bladder column 21 expands to push the piston 221, and the piston 221 drives the elastic rod 222 to move outwards, forming a protective barrier at the wrist of the young child to prevent foreign objects from touching the indwelling needle. The gas enters the airbag cylinder 311 of the capsule magnetic attraction component 3, making it expand and push the connecting rod 322, and the connecting rod 322 drives the magnetic block 321 to adsorb, increasing the tightening force between the fixing blocks 102 and preventing the elastic protective cover 1 from falling off;

[0060] When the young child shakes the elastic protective cover 1 and hits other objects, the vibration is transmitted to the spring 42 of the elastic bell component 4, and the spring 42 drives the weighted bell component 41 to shake, and the bell 412 in the weighted bell component 41 makes a sound to remind the caregiver to pay attention;

[0061] When the young child is having an infusion, place the infusion tube in the arc-shaped bag 62 of the arc-shaped warm component 6, open the first sealing plug 631 on the inlet water shaft 63, close the first sealing plug 631 after introducing hot water, and use the hot water in the arc-shaped bag 62 to heat the infusion tube to reduce the discomfort of the young child during infusion. After use, open the second sealing plug 641 and drain the hot water through the outlet water shaft 64.

[0062] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A pediatric infant intravenous indwelling needle protection device, characterized in that , comprising an elastic protective cover (1) and a hand-kneading charging and discharging component (5): The elastic protective cover (1) has a notch (101) integrally formed at the top thereof, a cavity is provided in the elastic protective cover (1), a plurality of spaced-apart columnar capsule assemblies (2) are mounted around the inner wall of the elastic protective cover (1), and the columnar capsule assemblies (2) are connected to the cavity, and the columnar capsule assemblies (2) include rod-type protective members (22) arranged at both ends thereof; The elastic protective cover (1) is symmetrically mounted with fixed blocks (102) located at the position of the notch (101), and adjacent sides of the two fixed blocks (102) are both mounted with capsule-type magnetic suction components (3) connected to the cavity, and both ends of the fixed blocks (102) are provided with notches (104), and elastic bell components (4) are mounted in the notches (104), and the hand-kneading charging and discharging components (5) are used to supply air to the cavity; When the hand-kneading charging and discharging component (5) supplies air to the cavity, the gas enters the columnar capsule component (2) to expand it, and the rod-type protective member (22) moves outward. At the same time, the gas enters the capsule magnetic attraction component (3) to exert pressure on it.

2. A pediatric infant intravenous indwelling needle protection device according to claim 1, characterized in that: The columnar capsule assembly (2) further comprises a capsule column (21), a plurality of capsule columns (21) arranged at intervals are installed around the inner wall of the elastic protective cover (1), two rod-type protective members (22) are respectively arranged at the two ends of the capsule column (21), and a ventilation shaft (23) communicating with the inner cavity of the elastic protective cover (1) is connected to the middle of the capsule column (21).

3. A pediatric infant intravenous indwelling needle protection device according to claim 2, characterized in that: The rod-type protective member (22) comprises a piston (221) and an elastic rod (222). The two ends of the capsule column (21) are provided with pistons (221). The two ends of the two pistons (221) are provided with elastic rods (222). The two elastic rods (222) slide through the two ends of the capsule column (21) respectively.

4. A pediatric infant intravenous indwelling needle protection device according to claim 3, characterized in that: The bladder-type magnetic attraction component (3) comprises an airbag component (31) and a magnetic attraction component (32); an installation groove is provided on adjacent sides of the two fixing blocks (102); an airbag component (31) communicating with the cavity is installed in the installation groove; the two magnetic attraction components (32) are respectively arranged on adjacent sides of the two fixing blocks (102); and the two magnetic attraction components (32) are respectively connected to the corresponding airbag components (31).

5. A pediatric infant intravenous indwelling needle protection device according to claim 4, characterized in that: The airbag component (31) comprises an airbag tube (311), wherein the airbag tube (311) is installed in the installation groove, one end of the airbag tube (311) is connected to an air pipe (312), one end of the air pipe (312) away from the airbag tube (311) passes through the outer wall of the elastic protective cover (1) and is connected to the cavity, and the magnetic attraction component (32) is connected to the other end of the airbag component (31).

6. A pediatric infant intravenous indwelling needle protection device according to claim 5, characterized in that: The magnetic attraction member (32) comprises a magnetic block (321) and a connecting rod (322); the connecting rod (322) is installed at the other end of the airbag tube (311); and the magnetic block (321) is installed at one end of the connecting rod (322) away from the airbag tube (311).

7. A pediatric infant intravenous indwelling needle protection device according to claim 6, characterized in that: The elastic bell member (4) comprises a counterweight bell member (41) and two springs (42), wherein the two springs (42) are respectively connected to the top and the bottom of the slot (104), and the counterweight bell member (41) is connected between the two springs (42).

8. The pediatric infant intravenous indwelling needle protection device according to claim 7, characterized in that: The counterweight bell component (41) includes a counterweight block (411) and a bell (412). The counterweight bell component (41) is connected between two springs (42). An assembly cavity is provided in the counterweight bell component (41), and the bell (412) is installed in the assembly cavity.

9. A pediatric infant intravenous indwelling needle protection device according to claim 8, characterized in that: The hand-kneading charging and discharging assembly (5) comprises a charging and discharging capsule ball (51) and a hose (52); a U-shaped seat (103) is installed at the bottom of the elastic protective cover (1); a storage chamber is formed integrally in the U-shaped seat (103); the hose (52) is arranged in the storage chamber; one end of the hose (52) is connected to the outer periphery of the elastic protective cover (1), and the hose (52) is communicated with the cavity in the elastic protective cover (1); the charging and discharging capsule ball (51) is connected to the other end of the hose (52); and a suction cup (105) is installed at the bottom of the U-shaped seat (103).

10. The pediatric infant intravenous indwelling needle protection device according to claim 9, characterized in that: The inner walls on both sides of the U-shaped seat (103) are both installed with arc-shaped heating components (6); The arc-shaped heating component (6) comprises an arc-shaped cover (61), and the inner walls on both sides of the U-shaped seat (103) are both installed with the arc-shaped cover (61), and an arc-shaped bag (62) is installed in the arc-shaped cover (61). The top of the arc-shaped cover (61) is installed with a water inlet shaft (63) connected to the arc-shaped bag (62), and the water inlet shaft (63) is plugged with a first sealing plug (631). The bottom of the arc-shaped cover (61) is installed with a water outlet shaft (64) connected to the arc-shaped bag (62), and the bottom of the water outlet shaft (64) is plugged with a second sealing plug (641).

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