A breathing tube bacterial protection sleeve convenient to disassemble and clean

Abstract

The utility model provides a breathing pipeline bacteria protection sleeve convenient to disassemble and clean, solves the problem that tracheal cannula and the protection sleeve are not easy to disassemble and clean, and the connection with breathing equipment is easy to transmit external force to tracheal cannula, causes the harm to patient, including tracheal cannula, protection sleeve and fixing band, tracheal cannula includes far end and near end, far end inserts into the trachea of patient, and near end is equipped with the flared connector, and the connector is made of hard material, the protection sleeve includes upper end surface and lower end surface, and the lower end surface of protection sleeve is equipped with the limit groove of interference fit with the connector, when the connector inserts into the limit groove, the protection sleeve will deform and adapt the insertion of connector, and the upper end surface of protection sleeve is fixedly connected with the catheter, the fixing band is fixedly connected with the protection sleeve, the disassembly and cleaning convenience of the design improve significantly, reduce maintenance cost and infection risk, avoid transmitting force to tracheal cannula, reduce the injury risk such as mucous membrane hyperemia, edema, hemorrhage etc.

Description

Technical Field

[0001] This utility model belongs to the field of medical and nursing device technology, and in particular relates to a respiratory tubing antibacterial protective cover that is easy to disassemble and clean. Background Technology

[0002] In the field of clinical respiratory support therapy, endotracheal intubation, as a core device for maintaining airway patency, needs to be left in the patient's trachea for an extended period. It connects to respiratory equipment such as ventilators and nebulizers via a proximal connector. Its safety and ease of use directly affect treatment outcomes and patient comfort. However, current protective and securing devices for endotracheal intubation still have many technical shortcomings in practical applications, as detailed below: Most existing endotracheal tube protective sleeves adopt an integrated injection molding or threaded connection structure, which lacks flexibility in the connection method with the endotracheal tube. Some protective sleeves are bonded to the proximal end of the tube, which is not only cumbersome to disassemble, but also easily damages the outer wall of the tube and generates debris, increasing the risk of airway foreign body infection. Other protective sleeves use a threaded design, which can be disassembled, but airway secretions, sputum and other contaminants can easily remain in the thread gaps. Cleaning requires repeated scrubbing with a special brush, and it is difficult to completely remove the dirt in the gaps. Long-term use can easily breed bacteria and cause infectious complications such as ventilator-associated pneumonia.

[0003] Meanwhile, existing protective covers are mostly made of hard plastic, which does not have elastic deformation capabilities and has a fixed fit gap with the endotracheal tube connector. If the gap is too small, the connector is prone to jamming during assembly, requiring force to push it to complete the installation; if the gap is too large, the protective cover is prone to loosening and falling off during use, failing to play a stable role in connecting the respiratory equipment, and in severe cases, it may lead to airway connection interruption, endangering the patient's life.

[0004] To connect the endotracheal tube to the respiratory equipment, existing devices typically use a rigid tube fixed to a protective sleeve. These tubes have poor flexibility and are rigidly connected to the sleeve and endotracheal tube. When the position of the respiratory equipment needs to be adjusted during clinical procedures (such as when a patient turns over or medical staff move the tubing), the tube directly transmits external force to the endotracheal tube. On the one hand, this external force can easily cause axial movement of the tube within the trachea, repeatedly rubbing against the airway mucosa, leading to mucosal congestion, edema, and even bleeding. On the other hand, the tube is prone to breakage or connector detachment under stress, not only affecting the continuity of respiratory support but also potentially causing serious medical accidents such as airway obstruction if broken tube fragments fall into the airway. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a respiratory tubing antibacterial protective sleeve that is easy to disassemble and clean. This solves the problems that the endotracheal tube and the protective sleeve are not easy to disassemble and clean, and that when connected to the respiratory equipment, external force can be transmitted to the endotracheal tube, causing harm to the patient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including an endotracheal tube, a protective sleeve, and a fixing strap. The endotracheal tube includes a distal end and a proximal end. The distal end is inserted into the patient's trachea, and the proximal end is provided with a flared connector made of a rigid material. The protective sleeve includes an upper end face and a lower end face. The lower end face of the protective sleeve is provided with a limiting groove that is interference-fitted with the connector. When the connector is inserted into the limiting groove, the protective sleeve will deform to adapt to the insertion of the connector. A guide tube is fixedly connected to the upper end face of the protective sleeve, and the fixing strap is fixedly connected to the protective sleeve.

[0007] Preferably, it also includes a disposable endotracheal tube liner that can be slidably inserted into the endotracheal tube, the outer surface of which is provided with an antibacterial coating.

[0008] Preferably, the protective cover includes a main body, which is connected to two symmetrical connecting ears, each of which has a connecting hole.

[0009] Preferably, the fixation strap includes a fixation part, a protective part, and an attachment part. The protective part extends from the fixation part and covers a portion of the protective sleeve. The protective part is located between the protective sleeve and the patient's neck skin. The attachment part is used to attach the fixation part to the endotracheal tube.

[0010] Preferably, the protective part includes a first protective part and a second protective part, wherein at least one of the first protective part and the second protective part includes a notch for fitting with an endotracheal tube.

[0011] Preferably, the protective part comprises a single piece of filler material impregnated with an antibacterial substance.

[0012] Preferably, the fixing part includes a first fixing part and a second fixing part, wherein the first fixing part is detachably and adjustablely connected to the second fixing part for fixing the tracheostomy tube to the patient's neck.

[0013] Preferably, the attachment portion includes a first attachment portion for attaching the first fixing portion to the protective sleeve and a second attachment portion for attaching the second fixing portion to the protective sleeve.

[0014] Preferably, the upper end face of the protective sleeve is provided with a first groove, and the lower end face of the protective sleeve is provided with a second groove. The indentations of the first groove and the second groove correspond vertically, and both the first groove and the second groove are annular and coaxial with the conduit.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. Significantly improved ease of disassembly and cleaning, reducing maintenance costs and infection risks; the protective sleeve's limiting groove and the endotracheal tube connector adopt a "flexible silicone interference fit" design, which achieves tight wrapping and fixation through silicone deformation, while also allowing for manual disassembly by pulling the protective sleeve, greatly improving the efficiency of medical operations. The protective sleeve is integrally injection molded, with a smooth, burr-free inner wall. The limiting groove, first groove, second groove, and other structures have no hidden gaps, avoiding the risk of bacterial growth caused by dirt residue in gaps in traditional structures.

[0016] 2. The catheter has a buffer design to prevent the transmission of external force and protect the airway mucosa. When connecting or adjusting the breathing equipment, the catheter can absorb external force through its own deformation, avoiding the transmission of force to the endotracheal tube. This effectively reduces repeated friction of the tube on the airway mucosa and reduces the risk of damage such as mucosal congestion, edema, and bleeding.

[0017] The first and second grooves on the upper and lower ends of the protective sleeve can further buffer the impact of external forces on the endotracheal tube, ensure the stability of the tube position during the connection of the breathing equipment, avoid airway patency problems caused by tube displacement, and improve the continuity and safety of respiratory support.

[0018] 3. Upgraded skin protection and antibacterial functions enhance patient comfort and safety; the protective part of the fixation strap adopts a "whole piece filling and concave wrapping" design, which can isolate the protective cover from the neck skin and avoid direct friction.

[0019] The outer wall of the disposable endotracheal tube liner is coated with a nano-silver antibacterial coating to prevent airway secretions from contacting the inner wall of the endotracheal tube, forming a three-layer antibacterial structure of "liner-fixation band-protection", which reduces the risk of ventilator-associated pneumonia and tracheostomy wound infection. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model when used on the patient's neck.

[0021] Figure 2 This is a three-dimensional view of the overall structure of this utility model.

[0022] Figure 3 This is a first schematic diagram of the disposable endotracheal tube liner of this utility model being inserted into the endotracheal tube.

[0023] Figure 4 This is a second schematic diagram of the disposable endotracheal tube liner used in this utility model for insertion into the endotracheal tube.

[0024] Figure 5This is a schematic diagram of the structure of the endotracheal tube after it is separated from the protective sleeve in this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the protective sleeve in this utility model.

[0026] Figure 7 yes Figure 4 Enlarged schematic diagram of part A in the diagram.

[0027] Figure 8 This is a schematic diagram of the unfolded structure of the fixing strap in this utility model.

[0028] In the figure: 1-endotracheal tube, 2-protective sleeve, 201-main body, 202-connecting ear, 203-connecting perforation, 3-fixing strap, 301-fixing part, 3011-first fixing part, 3012-second fixing part, 302-protecting part, 3021-first protective part, 3022-second protective part, 303-attachment part, 3031-first attachment part, 3032-second attachment part, 4-connector, 5-limiting groove, 6-catheter, 7-disposable endotracheal tube liner, 8-notch, 9-first groove, 10-second groove. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] Reference Figure 1-8 As shown, this utility model discloses an easy-to-disassemble and clean antibacterial protective sleeve for breathing tubing, mainly comprising four core components: endotracheal tube 1, protective sleeve 2, fixing strap 3, and disposable tube liner 7. These components work together to achieve the functions of "airway protection, antibacterial properties, easy disassembly, and skin protection." The specific structure and connection relationships are as follows: Endotracheal tube 1 is a standard clinical airway tube made of medical-grade silicone (biocompatible, reducing airway mucosal irritation), and consists of a distal and a proximal end: The distal end features a smooth, angled design for insertion into the patient's trachea. An air cuff (not shown in the image, a standard clinical structure) is located on the outer wall. When inflated, it can fix the position of the intubation tube and prevent airway secretions from refluxing. The proximal end is integrally molded with a flared connector 4. The connector 4 is made of rigid medical PVC material. Its inner diameter is adapted to the connector of respiratory equipment (such as ventilator, nebulizer). The outer wall has stepped protrusions for mating with the limiting groove 5 of the protective sleeve 2. The rigid design of connector 4 ensures stability when connected to respiratory equipment, preventing airway blockage caused by external pressure; the flared structure increases the connection area, making it easier for medical staff to quickly connect to the equipment.

[0031] The protective sleeve 2 is a one-piece injection-molded structure made of medical-grade elastic silicone material (possessing deformability and sterilization resistance). It includes a main body 201, a connecting ear 202, a limiting groove 5, a catheter 6, a first groove 9, and a second groove 10, as detailed below: The main body 201 is the core load-bearing structure of the protective sleeve, with a thickness of 2-3mm and a smooth inner wall without burrs, to avoid friction with the endotracheal tube 1 to generate debris.

[0032] Connecting ears 202 are symmetrically arranged on both sides of the main body 201 (one on the left and one on the right), and are integrally formed with the main body 201. A connecting hole 203 is opened in the middle of each connecting ear 202. The inner wall of the hole is provided with anti-slip texture, which is used to pass through the attachment part 303 of the fixing strap 3, so as to realize the detachable connection between the protective sleeve 2 and the fixing strap 3.

[0033] The limiting groove 5 is located at the center of the lower end face of the protective sleeve 2. Its inner diameter is in an interference fit with the outer diameter of the connector 4 of the endotracheal tube 1 (interference amount 0.5-1mm). When the connector 4 is inserted into the limiting groove 5, the inner wall of the limiting groove made of elastic silicone material will undergo adaptive deformation, tightly wrapping the stepped protrusion of the connector 4, which not only ensures the connection stability (prevents the protective sleeve from falling off), but also allows for quick disassembly by pulling the protective sleeve with external force (no tools are required, it can be separated by hand), which is convenient for subsequent cleaning and disinfection.

[0034] The catheter 6 is made of medical-grade soft PVC material. One end is integrally injection molded and fixed to the center of the upper surface of the protective sleeve 2, while the other end is a free end (which can be connected to a breathing device). Its outer diameter is compatible with the tubing of the breathing device. The catheter 6 has a wall thickness of 1.5mm and has bending performance, which allows it to deform flexibly under external force. This prevents the catheter from transmitting force to the endotracheal tube 1 when it is under stress, thereby reducing the movement of the tube in the trachea and reducing the risk of airway mucosal damage.

[0035] Both the first groove 9 and the second groove 10 are annular groove structures, coaxially arranged on the upper and lower end faces of the protective sleeve 2, and the center of the groove coincides with the axis of the tube 6; the first groove 9 (upper end face) and the second groove 10 (lower end face) correspond to each other, and their inner walls fit the outer wall of the connector 4 of the endotracheal tube 1, which can be flexibly deformed under the action of external force, further buffering the impact of external force on the tube.

[0036] The fixation strap 3 has a layered composite structure with an overall width of 25-30mm and an adjustable length (suitable for adults with a neck circumference of 50-70cm and pediatrics with a neck circumference of 30-45cm). It includes a fixation part 301, a protective part 302, and an attachment part 303. These parts work together to achieve the functions of "fixing the cannula, protecting the skin, and preventing bacteria". The fixing part 301 is divided into a first fixing part 3011 and a second fixing part 3012, both of which use a three-layer composite fabric. The outer waterproof medical PU film (0.1mm thick) can prevent the penetration of body fluids and prevent the fixation strap from getting wet; The middle layer of moisture-wicking fabric (composition: 80% cotton + 20% spandex) quickly absorbs sweat from the patient's neck, keeping the skin dry; The inner antibacterial fabric (impregnated with silver ion antibacterial agent) can inhibit the growth of pathogenic bacteria such as Escherichia coli and Staphylococcus aureus.

[0037] The free end of the first fixing part 3011 is sewn with a hook and loop fastener, and the free end of the second fixing part 3012 is sewn with a rough hook and loop fastener. The length can be adjusted (adjustment range ±5cm) through the detachable connection of the hook and loop fastener. It can also be replaced with a buckle, snap fastener or sliding part (such as plastic adjustment buckle) as needed to adapt to patients with different neck circumferences (adults / pediatrics).

[0038] The protective part 302 extends from the middle of the fixing part 301 toward the protective sleeve 2, with a length of 30-40mm and a width approximately one-third wider than the fixing part 301. It is located between the protective sleeve 2 and the patient's neck skin to isolate the protective sleeve from the skin and prevent direct friction. The protective part 302 is further divided into a first protective part 3021 and a second protective part 3022, as detailed in the design: The material is made of a single piece of filling material (such as a mixture of nylon cotton and spandex, with a thickness of 5-8mm). The filling material is impregnated with quaternary ammonium salt antibacterial substances (antibacterial effect ≥30 days), which is both soft and can cushion the pressure of the protective case on the skin.

[0039] The notch 8 is a semi-circular notch (the diameter of which is adapted to the outer diameter of the endotracheal tube 1) at the junction of the first protective part 3021 and the second protective part 3022. When the protective part 302 fits against the neck, the notch 8 can wrap around the outer wall of the endotracheal tube 1 to prevent the tube from directly contacting the skin and to prevent the protective part from shifting.

[0040] Solving the problems of traditional gauze being prone to falling off, getting damp, and coming into contact with wounds—the whole-piece filling structure will not shift, the antibacterial filling material reduces the risk of infection, and the soft material reduces skin irritation.

[0041] The attachment part 303 includes a first attachment part 3031 and a second attachment part 3032, both of which are 10mm wide strip structures, and the material is the same as the outer layer of the fixing part 301 (waterproof PU film). One end of the first attachment part 3031 is sewn and fixed to the first fixing part 3011, and the other end passes through the connecting hole 203 of the left connecting ear 202 of the protective sleeve 2 and is fixed to itself by Velcro. The second attachment part 3032 is connected to the right connecting ear 202 in the same way, so as to realize the detachable connection between the fixing strap 3 and the protective sleeve 2.

[0042] The disposable endotracheal tube liner 7 is a thin-walled tubular structure made of medical-grade polyethylene. Its length is adapted to the inner diameter of the endotracheal tube 1 and can be slidably inserted into the internal channel of the endotracheal tube 1.

[0043] The outer wall is coated with a nano-silver antibacterial coating. After insertion, the outer wall of the liner fits tightly against the inner wall of the cannula, which can prevent airway secretions from directly contacting the inner wall of the cannula and reduce bacterial adhesion.

[0044] The endotracheal tube liner is a single-use product and should be replaced every 24 hours. When replacing it, it can be manually pulled out from the proximal end of the endotracheal tube 1 (without removing the protective sleeve). The operation time is ≤10 seconds, reducing the workload of medical staff.

[0045] The specific usage process is as follows: The patient is placed in a supine position with their head tilted back and turned to one side to expose the tracheostomy in the neck. The skin around the stoma (within a 5cm diameter area) is cleaned with normal saline, dried, and then medical petroleum jelly is applied (to reduce skin dryness).

[0046] Intubation: Medical staff wearing sterile gloves slowly insert the distal end of endotracheal tube 1 into the patient's tracheostomy (according to clinical standard procedures), inflate the intubation cuff to fix the tube position.

[0047] Place the protective part 302 (first protective part 3021, second protective part 3022) of the fixation strap 3 against the patient's neck skin, ensuring that the notch 8 covers the endotracheal tube 1 and avoids contact between the tube and the skin; connect the first fixation part 3011 and the second fixation part 3012 around the neck and adjust the tightness with Velcro (it is advisable to be able to insert 1 finger to avoid compressing the neck blood vessels).

[0048] Connect the free end of the tube 6 at the upper end of the protective sleeve 2 to the breathing equipment (such as ventilator tubing), confirm that the connection is tight (no air leakage), and use the first groove 9 to accommodate the edge of the equipment connector to reduce the pressure of the connector on the protective sleeve.

[0049] Replace the disposable endotracheal tube liner 7 every 24 hours – manually remove the old liner from the proximal end of the endotracheal tube 1 (and place it in a medical waste bag), insert the new liner from the proximal end to the distal end and align it, keeping the tube in a stable position during the procedure (avoiding movement).

[0050] Examine the patient's neck skin daily. If there is sweat or body fluid seepage on the protective part 302 of the fixation strap 3, the Velcro of the attachment part 303 can be removed, the fixation strap 3 can be removed and replaced with a new sterile fixation strap (the protective cover 2 does not need to be removed). After replacement, readjust the tightness.

[0051] When the surface of the protective cover 2 is contaminated with secretions, the protective cover 2 can be pulled by hand to disengage the connector 4 from the limiting groove 5 (disassembly time ≤ 30 seconds). The protective cover 2 is soaked in medical cleaning agent (such as neutral enzyme cleaning agent) for 10 minutes. The limiting groove 5, the first groove 9, and the second groove 10 are cleaned with a soft brush. After rinsing with clean water, it is sterilized and reassembled for use.

[0052] When the position of the breathing equipment needs to be adjusted, the tubing 6 can bend and deform with the equipment tubing to avoid external force being transmitted to the endotracheal tube 1, ensuring that the amount of movement of the tube in the trachea is ≤1mm, and maintaining airway stability.

Claims

1. A removable and easy-to-clean antibacterial protective sleeve for breathing tubing, comprising an endotracheal tube (1), a protective sleeve (2), and a fixing strap (3), characterized in that, The endotracheal tube (1) includes a distal end and a proximal end. The distal end is inserted into the patient's trachea, and the proximal end is provided with a trumpet-shaped connector (4) made of rigid material. The protective sleeve (2) includes an upper end face and a lower end face. The lower end face of the protective sleeve (2) is provided with a limiting groove (5) that is interference fit with the connector (4). When the connector (4) is inserted into the limiting groove (5), the protective sleeve (2) will deform to adapt to the insertion of the connector. The upper end face of the protective sleeve (2) is fixedly connected to a conduit (6), and the fixing band (3) is fixedly connected to the protective sleeve (2).

2. The respirator tubing antibacterial protective sleeve that is easy to disassemble and clean according to claim 1, characterized in that, It also includes a disposable endotracheal tube liner (7) that can be slidably inserted into the endotracheal tube (1), the outer surface of which is provided with an antibacterial coating.

3. The respirator tubing antibacterial protective sleeve that is easy to disassemble and clean according to claim 1, characterized in that, The protective cover (2) includes a main body (201), which is connected to two left and right symmetrical connecting ears (202), each connecting ear (202) having a connecting hole (203).

4. The respirator tubing antibacterial protective sleeve that is easy to disassemble and clean according to claim 1, characterized in that, The fixation strap (3) includes a fixation part (301), a protective part (302) and an attachment part (303). The protective part (302) extends from the fixation part (301) to cover part of the protective sleeve. The protective part (302) is located between the protective sleeve (2) and the patient's neck skin. The attachment part (303) is used to attach the fixation part to the endotracheal tube (1).

5. A respirator tubing antibacterial protective sleeve that is easy to disassemble and clean, as described in claim 4, is characterized in that... The protective part (302) includes a first protective part (3021) and a second protective part (3022), wherein at least one of the first protective part (3021) and the second protective part (3022) includes a notch (8) for fitting with the endotracheal tube (1).

6. A respirator tubing antibacterial protective sleeve that is easy to disassemble and clean, as described in claim 4, is characterized in that... The protective part (302) includes a single piece of filling material, which is impregnated with an antibacterial substance.

7. A respirator tubing antibacterial protective sleeve that is easy to disassemble and clean, as described in claim 4, is characterized in that... The fixation part (301) includes a first fixation part (3011) and a second fixation part (3012), wherein the first fixation part (3011) is detachably and adjustablely connected to the second fixation part (3012) for fixing the tracheostomy tube to the patient's neck.

8. A respirator tubing antibacterial protective sleeve that is easy to disassemble and clean, as described in claim 4, is characterized in that... The attachment portion (303) includes a first attachment portion (3031) for attaching a first fixing portion (3011) to the protective sleeve (2) and a second attachment portion (3032) for attaching a second fixing portion (3012) to the protective sleeve (2).

9. A respirator tubing antibacterial protective sleeve that is easy to disassemble and clean, as described in claim 1, is characterized in that... The upper end face of the protective sleeve (2) is provided with a first groove (9), and the lower end face of the protective sleeve (2) is provided with a second groove (10). The indentations of the first groove (9) and the second groove (10) correspond vertically, and both the first groove (9) and the second groove (10) are annular and coaxial with the conduit (6).

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