A device for fixing endotracheal tubes in the prone position of newborns

Abstract

This invention relates to the field of medical catheter fixation devices, specifically providing a neonatal prone endotracheal tube fixation device, comprising a catheter fixation assembly and a fixation strap. The fixation strap includes a horizontal fixation strap and a central overhead fixation member. The central overhead fixation member includes an overhead strap and an elastic protruding tube. The upper part of the elastic protruding tube is connected to the upper front part of the overhead strap, and the lower end of the elastic protruding tube is connected to the catheter fixation assembly. The horizontal fixation strap has a mouthpiece hole in the middle, and connectors are connected to both ends. The outer side of the middle part of the horizontal fixation strap is connected to the catheter fixation assembly, and the two ends of the horizontal fixation strap are connected to each other through connectors and to the lower rear part of the overhead strap. This invention can be used for both oropharyngeal and nasotracheal tube fixation, providing more stable fixation and less pressure.

Description

Technical Field

[0001] This invention relates to the field of medical catheter fixation device technology, specifically to a neonatal prone position endotracheal catheter fixation device. Background Technology

[0002] Prone ventilation is widely used in the ICU as a lung-protective strategy. Its main principles are to effectively improve the ventilation-perfusion ratio, re-expand collapsed alveoli on the dorsal side, allow for better drainage of pulmonary and tracheal secretions under gravity, and reduce pressure on the drooping lung areas from the heart and mediastinum. Ultimately, this improves hypoxemia, hypercapnia, lung expandability, and hemodynamics. Early implementation can prevent the progression of mild cases to severe and critical cases and improve the clinical outcomes of severe and critically ill patients.

[0003] When newborns are placed prone on the hospital bed, they tend to move around easily. To prevent the endotracheal tube used for ventilation in this position from shifting, twisting, or dislodging, it needs to be properly secured. Because newborns have delicate skin, repeated insertion can easily cause tissue damage. Currently, medical tape is used to secure the endotracheal tube, but this method is highly prone to causing skin allergies. Furthermore, the tape is prone to curling at the edges when the newborn moves, resulting in poor adhesion and fixation.

[0004] Chinese patent CN113398403B discloses a neonatal prone endotracheal tube fixation device, including a fixation base and a fixation strap. The fixation base has a clearance opening in the middle to avoid the newborn's mouth. The fixation base has an arc-shaped cross-section and is detachably connected to the fixation strap. A tube fixation assembly is movably connected to the fixation base, including a fixation block and a tube clamp disposed on the fixation block. A limiting element is provided between the fixation block and the fixation base. This invention eliminates the need for medical tape during neonatal endotracheal tube fixation, avoiding the skin allergy problems that easily occur with prolonged use of medical tape, as well as the problem of medical tape curling after prolonged use. Furthermore, this solution can adaptively adjust the fixation position according to different endotracheal tube insertion locations to ensure the optimal endotracheal tube fixation angle.

[0005] However, the above technology still has at least the following shortcomings: 1. It can only be used for fixing endotracheal tubes via oral intubation; 2. The endotracheal tube is only fixed by the initial clamping of the tube clamp and does not have the ability to tighten itself when the endotracheal tube is pulled or pushed, so the reliability of the fixation needs to be improved.

[0006] Therefore, a device for fixing the endotracheal tube in the prone position of newborns was proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a endotracheal tube fixation device for newborns in the prone position that can be used for both oral and nasal endotracheal intubation, providing more stable fixation and less pressure.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This invention provides a neonatal prone endotracheal tube fixation device, comprising a tube fixing assembly and a fixing strap for the fixing assembly. The fixing strap for the fixing assembly includes a horizontal fixing strap and a central overhead fixing member. The central overhead fixing member includes an overhead strap and an elastic tube. The upper part of the elastic tube is connected to the upper front part of the overhead strap, and the lower end of the elastic tube is connected to the tube fixing assembly. The horizontal fixing strap has a nozzle hole in the middle, and connectors are connected to both ends. The outer side of the middle part of the horizontal fixing strap is connected to the tube fixing assembly. The two ends of the horizontal fixing strap are connected to each other through connectors and are connected to the lower rear part of the overhead strap.

[0010] Preferably, the connector is a Velcro strap.

[0011] Preferably, the elastic tube is formed by folding a whole elastic tube into an inverted "U" shape and then bending the lower end in opposite directions. In use, after the two ends of the horizontal fixing strap are connected to the lower rear end of the overhead strap, the lower end of the elastic tube tilts forward and away from the area between the newborn's nostrils and upper lip under its own elasticity.

[0012] Preferably, the elastic tube is made of polypropylene plastic tubing.

[0013] Preferably, the overhead belt is made of porous mesh fabric.

[0014] Preferably, the conduit fixing assembly includes a fitting connecting piece, a mounting base, an external inclined plate clamp, a large-headed nail-shaped clamp, and a nut.

[0015] The large-headed nail-shaped clamp includes a flat plate and a screw vertically connected to the middle of the flat plate;

[0016] The nut is threadedly connected to the screw;

[0017] The lower part of the fitting connecting piece is fixedly connected to the upper part of the middle part of the horizontal fixing strip by means of adhesive bonding or other methods;

[0018] The mounting base includes a connecting rod and a countersunk block. The countersunk block is a rectangular block with grooves on both the top and bottom surfaces. The center of the groove has a hole for the screw to pass through. One end of the connecting rod is connected to the upper center of the fitting connecting piece, and the other end is connected to the rear center of the countersunk block.

[0019] The outer inclined plate clamp includes an insert plate and two inclined plates connected to the front and rear sides below the insert plate. The insert plate has a through hole in the middle for the screw to pass through. The insert plate is used to insert into the groove. Each inclined plate has at least one arc-shaped groove for clamping the conduit on its underside.

[0020] Preferably, a dental pad with a central hole is connected to the lower part of the connecting rod.

[0021] Preferably, the opposite groove block has baffles on its upper and lower surfaces and on both the front and back sides.

[0022] Preferably, the plate has an elongated groove on its surface, which is located directly below the arc-shaped groove.

[0023] Preferably, the connecting rod has insertion holes or protrusions on both sides for inserting into the two ends of the elastic tube.

[0024] Preferably, the outer inclined plate head is made of soft polyvinyl chloride plastic or polypropylene plastic.

[0025] Preferably, the bonding connector is made of pure aluminum sheet.

[0026] Due to the adoption of the above technical solutions, the advantages of this invention are as follows:

[0027] 1. The present invention, by setting the central overhead fixing member, can prevent the horizontal fixing band 21 from sliding downward, so that the fixing position of the catheter is not easily displaced or dislodged due to the newborn's movement, and the fixation is more stable.

[0028] 2. The overhead fixation device provided by the present invention is located in the midsagittal plane of the patient when in use, and is not easily pressed under the face and head of a ventilated patient in a prone position with the head turned to one side, thus avoiding pressure injury to the face and head of the patient.

[0029] 3. The catheter fixation component provided by the present invention can be lifted by the elastic tube and / or pushed towards the front of the lip by the elastic restoring force of the elastic tube, thereby reducing the pressure applied to the newborn's lip by the catheter fixation component, making it more comfortable to wear, and less likely to be injured by the catheter fixation component.

[0030] 4. The catheter fixation assembly provided by the present invention includes an external inclined plate clamp, which can be selectively inserted into the upper or lower part of the mounting base as needed, and can better adapt to the fixation of endotracheal tubes via the mouth and nose.

[0031] 5. The two inclined plates with their lower ends far apart are provided in the outer inclined plate clamping head provided by the present invention. After the guide tube is clamped by the arc groove on them, when the guide tube is pulled or pushed, one side of the inclined plate will always shift towards the middle of the outer inclined plate clamping head under the action of the friction force of the guide tube, so that the distance between the arc groove and the long groove becomes smaller, clamping the guide tube more tightly, and further making the guide tube less likely to shift or fall out. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a side view of the neonatal prone endotracheal tube fixation device provided in an embodiment of the present invention;

[0034] Figure 2 for Figure 1 Front view diagram;

[0035] Figure 3 for Figure 1 A side view of the catheter fastening assembly in the diagram;

[0036] Figure 4 for Figure 3 A top-down view;

[0037] Figure 5 for Figure 3 A three-dimensional structural diagram of the outer inclined plate clamp head;

[0038] Figure 6 This is a schematic diagram of the state of the present invention used for fixing an endotracheal tube via oral intubation;

[0039] Figure 7 This is a schematic diagram of the state of the present invention used for nasal endotracheal intubation fixation;

[0040] Figure 8 for Figure 6 A schematic diagram showing the state of the elastic tube when the lower end is not connected to the catheter fixing component (i.e., the state where the lower end of the elastic tube can tilt forward due to its own elasticity).

[0041] In the diagram: 1. Velcro; 2. Conduit; 10. Conduit fixing assembly; 11. Fitting connecting piece; 12. Mounting base; 121. Connecting rod; 1211. Protruding rod; 122. Opposite groove block; 1221. Groove; 1222. Stop bar; 13. Outer bevel plate clip; 131. Insert plate; 1311. Through hole; 132. Bevel plate; 1321. Arc groove; 14. Large-head nail-shaped clamp; 141. Flat plate; 1411. Long groove; 142. Screw; 15. Nut; 20. Fixing strap for fixing assembly; 21. Horizontal fixing strap; 211. Exposed hole; 22. Centered overhead fixing piece; 221. Overhead strap; 222. Flexible tube puller. Detailed Implementation

[0042] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," "outer," "left," "right," "front," and "rear" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use, they are only for the convenience of describing this invention 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 invention.

[0043] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0044] This invention provides a neonatal prone position endotracheal tube fixation device, see [link to related document]. Figure 1 , Figure 2 It includes a conduit fixing assembly 10 and a fixing assembly fixing strap 20.

[0045] The specific implementation method is described below:

[0046] The conduit fixing assembly 10 includes a fitting connecting piece 11, a mounting base 12, an outer inclined plate clamp 13, a large-headed nail-shaped clamp 14, and a nut 15. The large-headed nail-shaped clamp 14 includes a flat plate 141 and a screw 142 vertically fixed to the middle of the flat plate 141. The flat plate 141 has an elongated groove 1411 on its upper surface. The nut 15 is threadedly connected to the screw 142. The mounting base 12 includes a connecting rod 121 and an opposite groove block 122. The opposite groove block 122 is a rectangular block with grooves 1221 on both its upper and lower surfaces. The grooves 1221 have retaining strips 1222 on their front and rear edges, and a hole for the screw 142 to pass through in the middle of the groove. The connecting rod 121... Below, a dental pad with a central hole is connected via a silicone strip. One end of the connecting rod 121 is bonded to the upper middle part of the fitting connecting piece 11, and the other end is bonded to the rear middle part of the opposite groove block 122. The connecting rod 121 has protruding rods 1211 on both sides. The outer inclined plate clamp 13 includes an insert plate 131 and two inclined plates 132 connected to the front and rear sides below the insert plate 131. The insert plate 131 has a through hole 1311 in the middle for the screw 142 to pass through. The insert plate 131 is used to insert into the groove 1221. Each inclined plate 132 has four arc-shaped grooves 1321 below it for clamping the guide tube 2. The arc-shaped grooves 1321 are located directly above the long groove 1411. See [reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 .

[0047] The fixing assembly 20 includes a horizontal fixing band 21 and a central overhead fixing member 22. The central overhead fixing member 22 includes an overhead band 221 and an elastic protruding tube 222. The upper part of the elastic protruding tube 222 is fixedly connected to the upper front part of the overhead band 221 by means of adhesive bonding or other methods. The lower two ends of the elastic protruding tube 222 are inserted into the protruding rod 1211. The horizontal fixing band 21 has an exposed hole 211 in the middle and Velcro 1 connected to both ends. The outer side of the middle part of the horizontal fixing band 21 is bonded to the bottom of the fitting connecting piece 11. The two ends of the horizontal fixing band 21 are connected to each other through the Velcro 1 and are connected to the lower rear part of the overhead band 221. See [reference needed]. Figure 1 , Figure 2 , Figure 3 .

[0048] In this embodiment, the elastic lifting tube 222 is made by folding a whole polypropylene plastic tube into an inverted "U" shape and then bending the lower end in opposite directions; the overhead strap 221 is made of porous mesh; the outer inclined plate clip 13 is made of polypropylene plastic; and the bonding connecting piece 11 is made of pure aluminum sheet.

[0049] The present invention relates to a method for fixing an endotracheal tube via oral intubation:

[0050] S1. Place the newborn in a supine position, put the dental pad with the central hole into the newborn's mouth, place the fitting connector 11 between the newborn's nostrils and upper lip, and gently press until the shape of the fitting connector 11 is basically consistent with the newborn's upper lip. Connect the two ends of the horizontal fixing strap 21 with Velcro 1 so that the inner surface of the horizontal fixing strap 21 contacts the newborn's facial skin. The tightness should be such that 1 to 2 fingers can be inserted.

[0051] S2. Connect the lower rear end of the top strap 221 to the rear end of the horizontal fixing strap 21 via Velcro, so that the bottom of the top strap 221 contacts the newborn's head skin.

[0052] S3. Slide the endotracheal intubation tube 2 into the central hole of the dental pad body for intubation;

[0053] S4. Adjust the newborn from a supine position to a prone position, with the head turned to one side;

[0054] S5. Pass the screw 142 on the large-headed clamp 14 through the through hole 1311 and groove 1221 on the insert plate from bottom to top, and then thread the nut 15. Place the guide tube 2 between the long groove 1411 and the arc groove 1321, and tighten the nut 15 to fix it. See below. Figure 6 .

[0055] The method for fixing a nasotracheal tube in this invention differs from the method for fixing an orotracheal tube described above in that, in this method, the insert plate 131 of the outer inclined plate clamp 13 is inserted into the upper groove 1221 of the opposite slot block 122. Then, in step S5, the screw 142 on the large-headed nail-shaped clamp 14 is passed from top to bottom through the through hole 1311 and groove 1221 on the insert plate, and then a nut 15 is threaded onto it. The catheter 2 is then placed between the long groove 1411 and the arc-shaped groove 1321, and the nut 15 is tightened to fix it. See [link to previous section]. Figure 7 .

[0056] Obviously, the present invention is more suitable for non-invasive fixation, and can also be used for endotracheal tube fixation in supine patients in children and adults.

[0057] The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A neonatal prone position endotracheal tube fixation device, comprising a tube fixing assembly (10) and a fixing strap (20), characterized in that: The fixing band (20) of the fixing assembly includes a horizontal fixing band (21) and a central overhead fixing member (22). The central overhead fixing member (22) includes an overhead band (221) and an elastic protruding tube (222). The upper part of the elastic protruding tube (222) is connected to the upper front part of the overhead band (221), and the lower end of the elastic protruding tube (222) is connected to the conduit fixing assembly (10). The horizontal fixing band (21) has an exposed hole (211) in the middle and connectors at both ends. The outer part of the middle part of the horizontal fixing band (21) is connected to the conduit fixing assembly (10). The two ends of the horizontal fixing band (21) are connected to each other through connectors and are connected to the lower rear part of the overhead band (221). The elastic tube (222) is formed by folding a whole elastic tube into an inverted "U" shape and then bending the lower end in opposite directions; The conduit fixing assembly (10) includes a fitting connecting piece (11), a mounting base (12), an outer inclined plate clamp (13), a large-head nail-shaped clamp (14), and a nut (15). The large-headed clamp (14) includes a flat plate (141) and a screw (142) vertically connected to the middle of the flat plate (141). The nut (15) is threadedly connected to the screw (142); The lower part of the fitting connecting piece (11) is fixedly connected to the upper part of the middle part of the horizontal fixing band (21); The mounting base (12) includes a connecting rod (121) and a countersunk block (122). The countersunk block (122) is a rectangular block with grooves (1221) on both the top and bottom surfaces. The grooves (1221) have holes in the middle for the screw (142) to pass through. One end of the connecting rod (121) is connected to the upper middle part of the fitting connecting piece (11), and the other end is connected to the rear middle part of the countersunk block (122). The outer inclined plate clamp (13) includes an insert plate (131) and two inclined plates (132) connected to the front and rear sides below the insert plate (131). The insert plate (131) has a through hole (1311) in the middle for the screw (142) to pass through. The insert plate (131) is used to insert into the groove (1221). Each inclined plate (132) has at least one arc-shaped groove (1321) for clamping the conduit (2) below.

2. The neonatal prone position endotracheal tube fixation device as described in claim 1, characterized in that: The connector is a Velcro strap (1).

3. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The elastic pick tube (222) is made of polypropylene plastic tube.

4. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The overhead belt (221) is made of porous mesh fabric.

5. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The plate (141) has a long groove (1411) on its upper surface, and the long groove (1411) is located directly below the arc-shaped groove (1321).

6. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The connecting rod (121) has insertion holes or protrusions (1211) on both sides.

7. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The outer inclined plate clip (13) is made of soft polyvinyl chloride plastic or polypropylene plastic.

8. The neonatal prone endotracheal tube fixation device as described in claim 1, characterized in that: The bonding connector (11) is made of pure aluminum sheet.

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