Nasogastric tube depth marker sticker

Abstract

The application discloses a nasogastric tube depth marking sticker, which comprises a sticking part, an auxiliary sticking part, an arch bridge connecting part, a pipeline fixing part and a tamper-proof early warning structure. The sticking part is used for sticking to the human nose, the auxiliary sticking part is used for sticking to the area in front of the ear or the cheekbone area to disperse the sticking pressure, the arch bridge connecting part connects the sticking part and the auxiliary sticking part, the pipeline fixing part is used for fixing the nasogastric tube, and the tamper-proof early warning structure is arranged at the connection between the sticking part and the arch bridge connecting part and is fractured when subjected to external tension, thereby providing visual early warning. The application realizes the tamper-proof early warning function through the fracture of the fragile sealing strip part, facilitates medical staff to find the nasogastric tube pulling event in time, and reduces the unplanned extubation risk. Meanwhile, the auxiliary sticking part disperses the skin pressure, thereby reducing the risk of skin pressure injury.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a marking sticker for fixing a nasogastric tube and its usage method. Background Technology

[0002] Nasogastric tubes are an important clinical pathway for providing enteral nutrition to patients who are unable to eat orally. After placement, the nasogastric tube needs to be secured in the patient's nose to prevent displacement or accidental removal.

[0003] In existing technologies, the following methods are mainly used to fix nasogastric tubes: Medical tape fixation method: The nasogastric tube is directly attached and fixed to the patient's nose using ordinary medical tape. Disadvantages: No warning function; pulling events are difficult to detect in time.

[0004] Modular fixing sticker: Uses an adhesive part + connecting part structure. Disadvantage: Still cannot achieve anti-tampering warning function.

[0005] Graduated gastric tube: The gastric tube itself has graduations to record the insertion depth. Disadvantages: Requires replacement with a dedicated gastric tube, resulting in higher costs, and lacks a warning function.

[0006] However, the following problems exist in clinical practice: The patient may accidentally pull on the nasogastric tube due to restlessness, turning over, coughing, or other reasons, leading to changes in the depth of the tube insertion. Medical staff may have difficulty detecting traction incidents in time, potentially delaying treatment. Unplanned extubation is a common adverse event in clinical practice, increasing patient suffering and medical costs. Existing fixing methods only provide passive fixing and lack an active early warning mechanism. When applied to the nose and face for extended periods, pressure damage may occur in a single application area. Studies have shown that over 30% of patients receiving long-term nasal feeding develop pressure injuries to the nasal skin. The current fixation methods, which rely solely on a single adhesive area on the nose, are a significant contributing factor to this complication. Summary of the Invention

[0007] The purpose of this invention is to provide a nasogastric tube depth marking sticker to solve the above-mentioned problems existing in the prior art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A nasogastric tube depth marking sticker includes an adhesive part, an auxiliary adhesive part, an arch bridge connection part, a tube fixing part, and an anti-tampering warning structure.

[0009] The adhesive part is used to fit the nose; the auxiliary adhesive part is used to fit the area in front of the ear or cheekbone to distribute the adhesive pressure; the arch bridge connecting part connects the adhesive part and the auxiliary adhesive part; the tube fixing part is located at the arch bridge connecting part to fix the nasogastric tube; the anti-tampering warning structure is located at the connection between the adhesive part and the arch bridge connecting part to provide a visual warning in case of breakage under external tension.

[0010] Explanation of the necessity of the auxiliary adhesive part: Existing technologies only apply adhesive to a single area of ​​the nose, which can lead to pressure damage to the skin in that area with prolonged use. This invention, by providing an auxiliary adhesive part, disperses the adhesive pressure, reducing skin pressure in the single adhesive area, a necessary technical feature for solving the problem of skin pressure damage. The auxiliary adhesive part is preferably applied to the area in front of the ear or the cheekbone area. This location effectively disperses the adhesive pressure on the nose, facilitates daily activities, and is less likely to be touched.

[0011] Compared with the prior art, the present invention has the following beneficial effects: Anti-tampering warning function: Provides a visual warning of breakage in the fragile seal section, making it easier for medical staff to detect traction events in a timely manner. Status tracking function: The fragile seal is irreversible once broken, allowing medical staff to quickly identify whether the nasogastric tube has been subjected to excessive traction. Depth marking function: The insertion depth is recorded through a scale marking section, facilitating handover and observation by nurses. Dispersing skin pressure: By using auxiliary adhesive patches to disperse adhesive pressure, the risk of skin pressure injury is reduced. Simple structure and low cost: The single-layer structure design makes it easy to manufacture and promote in clinical practice. Alternative fixation design: Provides a secondary fixation option through alternative fixation tape, increasing flexibility in clinical use. Flexible arch design: The arch connection uses elastic material to adapt to different patients' facial contours, improving wearing comfort. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram illustrating the usage state of the present invention; Figure 3 This is a schematic diagram of the hollowed-out slot structure of the pipeline fixing part of the present invention; Figure 4 This is a partially enlarged schematic diagram of the anti-tampering early warning structure of the present invention under normal conditions; Figure 5 For the present invention Figure 4 A schematic diagram of the structure shown after it breaks under external tensile force. Figure 6This is a schematic diagram showing the positional relationship between the raised protective rib and the fragile seal strip of the present invention; Detailed Implementation

[0013] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Example 1

[0014] A nasogastric tube depth marking sticker, with the following specific parameters: Adhesive part (1) size: 30mm×20mm, the substrate is medical grade non-woven fabric, and the adhesive layer is medical acrylic pressure-sensitive adhesive; The auxiliary adhesive part (5) is 25mm×15mm in size and is used to adhere to the area in front of the human ear. The substrate is medical-grade non-woven fabric and the adhesive layer is medical acrylic pressure-sensitive adhesive. The arch bridge connecting part (2) has a length of 35mm and a width of 10mm. It is made of thermoplastic polyurethane elastomer (TPU) and can be stretched and deformed. It is integrally formed with the adhesive part and the auxiliary adhesive part. Fragile seal section (41): Polystyrene material, thickness 0.3mm, elongation at break 12%; Raised protective rib (42): 0.6 mm high, surrounding the fragile seal section (41) (twice the thickness of the fragile seal section). Visual identification layer (43): Located on the upper surface of the fragile seal (41), it is printed with a "Caution" warning pattern; The width of the main body of the card slot (31) is 5mm (for Fr14 nasogastric tubes, the outer diameter is about 4.6mm). Hole (321): Circular in shape, 1.2mm in diameter; Scale interval: 2mm; Remove auxiliary part (7): pull ear type, height 5mm; Spare fixing tape (8): 15mm×10mm in size, with release paper covering the surface. Example 2

[0015] A nasogastric tube depth marking sticker, with the following specific parameters: Adhesive part (1) size: 35mm×22mm, substrate is polyurethane (PU) film; The auxiliary adhesive part (5) is 30mm×18mm in size and is used to adhere to the cheekbone area. Length of arch bridge connection (2): 40mm; Fragile seal section (41): Polypropylene material, thickness 0.25mm, elongation at break 15%; Raised protective rib (42): Height 0.5mm (twice the thickness of the fragile seal section); Visual identification layer (43): Printed with red warning stripes; The width of the main body of the card slot (31) is 4mm (for Fr12 nasogastric tubes, the outer diameter is about 4mm). Hole (321): Square in shape, with a side length of 1.0mm; Scale interval: 3mm. Example 3

[0016] A nasogastric tube depth marking sticker, with the following specific parameters: Adhesive part (1) size: 28mm×18mm, the substrate is medical grade non-woven fabric; The auxiliary adhesive part (5) is 22mm×12mm in size and is used to adhere to the area in front of the ear. Length of arch bridge connection (2): 32mm; Fragile seal section (41): made of polycarbonate, 0.35mm thick, with an elongation at break of 18%; Raised protective rib (42): Height 0.7mm (twice the thickness of the fragile seal section); Visual identification layer (43): Printed with "VOID" anti-tampering mark; The width of the main body of the card slot (31) is 6mm (for Fr16 nasogastric tubes, with an outer diameter of about 5.3mm). Hole (321): Circular in shape, 1.5mm in diameter; Scale interval: 1mm.

[0017] Material description: The substrate of the adhesive part (1) and the auxiliary adhesive part (5) is medical-grade non-woven fabric or polyurethane (PU) film, which has good breathability and flexibility; the adhesive layer is medical-grade acrylic pressure-sensitive adhesive or silicone gel, which has passed the ISO 10993 skin irritation test and is suitable for patients with fragile skin.

[0018] The arch bridge connecting part (2) is integrally formed with the adhesive part (1) and the auxiliary adhesive part (5) or connected by hot pressing. It is made of thermoplastic polyurethane elastomer (TPU) or silicone material, which has good elasticity and flexibility.

[0019] The fragile seal section (41) of the anti-tampering warning structure is made of brittle sheet materials such as polystyrene (PS), polypropylene (PP) or polycarbonate (PC), with an elongation at break of ≤20%.

[0020] Card slot width adaptation instructions: For different sizes of nasogastric tubes (Fr12~Fr18, outer diameter approximately 4mm~6mm), the width of the main body of the slot is set to 3mm~8mm to cover commonly used nasogastric tube sizes.

[0021] Description of flexible arch bridge: The arch bridge connector (2) is made of an elastic material that can be stretched and deformed to adapt to the facial contours of different patients. For patients with high or low nasal bridges, the elastic arch bridge can naturally extend or compress to ensure that both the adhesive part and the auxiliary adhesive part can fit the skin.

[0022] The working principle of anti-tampering early warning: When the nasogastric tube is accidentally pulled, the tension is first applied to the connection between the arched connector and the adhesive part (i.e., the location of the tamper-evident warning structure). Because the elongation at break of the fragile seal is ≤20%, it will break before the adhesive part detaches from the skin. After breakage, a visible crack or separation appears in the fragile seal, and the warning pattern on the visual label layer deforms or tears, creating an irreversible visual warning to alert healthcare personnel that a pulling event has occurred. Raised protective ribs surround the fragile seal to prevent accidental finger contact.

[0023] Instructions for use of spare fixing tape: If the fragile seal breaks, healthcare workers can use the spare fixation tape (8) for temporary fixation. The spare fixation tape is covered with release paper, which can be removed to attach and fix the nasogastric tube. This design provides a secondary fixation option, increasing the flexibility of clinical use.

[0024] Non-punitive design description: It should be noted that the tamper-proof warning structure of this invention is designed to provide a reminder, not to assign blame. When the fragile seal breaks, it prompts medical staff to promptly check the insertion depth of the nasogastric tube and re-secure it. This invention does not encourage the use of breakage events for determining liability in medical malpractice disputes.

[0025] Working principle In use, the adhesive part is applied to the patient's nose, the auxiliary adhesive part is applied to the preauricular or cheekbone area, the arched connector spans the bridge of the nose, and the slot in the tube fixing part secures the nasogastric tube. When the patient accidentally pulls on the nasogastric tube, the pulling force is transmitted through the tube fixing part to the arched connector, and then to the tamper-evident warning structure. Because the fragile seal is made of a brittle material with low elongation at break, it will break first when the pulling force reaches a threshold, generating a visual warning. Medical staff can then re-apply or replace the label after inspection.

[0026] Explanation of reference numerals in the attached figures 1 - Paste Section 2—Arch Bridge Connection 3 - Pipeline fixing section 31—Card slot body 32 - Openwork section 321 - Hollow hole 4 - Anti-tampering early warning structure 41 - Fragile Seal Section 42—Protruding protective rib section 43 - Visual Identity Layer 5 - Auxiliary pasting section 6 - Scale Marking Section 7 - Removal of the Auxiliary Department 8 - Spare fixing tape How to use Cleanse the skin: Clean the skin around the patient's nose and the area on the face where the adhesive was applied using an alcohol swab. Positioning the adhesive patch: Apply the adhesive patch to the patient's nose, ensuring it is centered. Apply the auxiliary adhesive part: Apply the auxiliary adhesive part to the area in front of the ear or cheekbone area, ensuring that the bridge connection naturally spans the bridge of the nose. Secure the nasogastric tube: Insert the nasogastric tube into the slot of the tube fixing part and ensure it is securely locked. Record depth: Read and record the depth value on the scale markings. Routine inspection: Check the integrity of the anti-tampering warning structure at each shift handover, and promptly address any breaks found. Backup Fixing: If the fragile seal breaks, the release paper of the backup fixing tape can be removed for temporary fixation, and then a new tape can be applied.

Claims

1. A nasogastric tube depth marking sticker, characterized in that, include: Adhesive part (1) is used to fit the human nose; The auxiliary adhesive part (5) is used to adhere to the area in front of the ear or the cheekbone area of ​​the human body to distribute the adhesive pressure; The arch bridge connecting part (2) connects the adhesive part (1) and the auxiliary adhesive part (5); The pipe fixing part (3) is provided at the arch bridge connecting part (2) for fixing the nasogastric tube; The anti-tampering warning structure (4) is set at the connection between the pasting part (1) and the arch bridge connection part (2).

2. The nasogastric tube depth marking sticker as described in claim 1, characterized in that: The anti-tampering early warning structure (4) includes a fragile seal (41) and a raised protective rib (42). The fragile sealing strip (41) is made of brittle polymer material with an elongation at break of ≤20%, and breaks preferentially over the adhesive part (1) when subjected to external tensile force.

3. The nasogastric tube depth marking sticker as described in claim 2, characterized in that: The raised protective rib (42) is arranged around the fragile seal (41), and the height of the raised rib is 1.5 to 3 times the thickness of the fragile seal (41).

4. The nasogastric tube depth marking sticker as described in claim 3, characterized in that: The anti-tampering warning structure (4) also includes a visual identification layer (43), which is disposed on the upper surface of the fragile seal (41) and has warning patterns or text printed on it.

5. The nasogastric tube depth marking sticker as described in claim 1, characterized in that: The pipe fixing part (3) includes a slot body part (31) and a hollow part (32), and the hollow part (32) is provided with a circular or square hollow hole (321).

6. The nasogastric tube depth marking sticker as described in claim 5, characterized in that: The width of the main body (31) of the card slot is 3mm to 8mm.

7. The nasogastric tube depth marking sticker as described in claim 1, characterized in that: It also includes a scale marking section (6), which is set on the arch bridge connection section (2) or the pipeline fixing section (3) to mark the depth of the nasogastric tube insertion, with a scale interval of 1mm to 5mm.

8. The nasogastric tube depth marking sticker as described in claim 1, characterized in that: It also includes a peeling aid (7) disposed at the edge of the adhesive part (1) or the auxiliary adhesive part (5).

9. The nasogastric tube depth marking sticker as described in claim 1, characterized in that: The arch bridge connecting part (2) or the auxiliary pasting part (5) is also provided with a spare fixing tape (8), and the surface of the spare fixing tape (8) is covered with release paper.

10. The nasogastric tube depth marking patch as described in claim 1, characterized in that: The arch bridge connection (2) is made of elastic material and its length can be stretched and deformed.

11. A method for preparing the nasogastric tube depth marking patch according to claim 1, characterized in that, Includes the following steps: S1: Cut medical-grade nonwoven fabric or polyurethane film into a predetermined shape to form an adhesive substrate and an auxiliary adhesive substrate; S2: Coat the bonding surfaces of the adhesive substrate and the auxiliary adhesive substrate with medical acrylic pressure-sensitive adhesive or silicone gel; S3: The thermoplastic polyurethane elastomer is injection molded or hot-pressed to form an arch bridge connection part, which is integrally formed with the adhesive part and the auxiliary adhesive part; S4: Cut brittle sheets of polystyrene, polypropylene, or polycarbonate to form a fragile seal section; S5: The raised protective ribs are hot-pressed and formed around the fragile seal portion, with the raised height being 1.5 to 3 times the thickness of the fragile seal portion; S6: Print a visual identification layer on the upper surface of the fragile seal section; S7: Assemble and fix the connection between the fragile seal, the raised protective rib and the arch bridge connection.

12. A method for preventing tampering and providing early warning of nasogastric tube depth marking stickers, characterized in that: S1: When the nasogastric tube is subjected to external tension, the tension is transmitted to the arch bridge connection part through the tube fixing part; S2: The tensile force is further transferred to the tamper-proof warning structure, and it acts preferentially on the fragile seal section; S3: Since the elongation at break of the fragile seal portion is ≤20%, when the tensile force reaches the threshold, the fragile seal portion breaks first before the adhesive portion; S4: After breakage, the fragile seal will develop visible cracks or separation, and the visual signage layer will deform or tear, forming an irreversible visual warning. S5: Medical staff use visual alerts to identify traction events, check the depth of the nasogastric tube insertion, and re-secure it.

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