Multifunctional neonatal noninvasive respirator head cap

Abstract

The invention relates to the technical field of medical supplies, and discloses a multifunctional neonatal noninvasive respirator head cap which comprises a head cover, a multi-specification adaptive interface module, a self-adaptive noise reduction assembly, a constant-temperature adjusting system and a safety locking adjusting mechanism, the head cover is integrally formed by medical elastic breathable fabric, and a fixing ring of an annular structure is fixedly installed on the outer side of the head cover; the fixing ring is used for achieving rapid disassembly, assembly and positioning of the interface module, the self-adaptive noise reduction assemblies are symmetrically arranged on the two sides of the head cover, and the constant-temperature adjusting system is embedded in the head cover and flexibly attached to the head skin of the newborn. Through the rotary clamping structure of the fixing ring, the rotating ring, the limiting piece and the connecting block and the modular design of the multi-specification pipeline connectors, rapid adaptation and disassembly and assembly of different brands of breathing machine pipelines are achieved, the whole set of head cap does not need to be replaced for newborns, and the purchase and inventory cost of hospitals is greatly reduced. Meanwhile, the operation process of medical staff is simplified, and the treatment preparation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of medical supplies technology, specifically a multifunctional head cap for non-invasive neonatal ventilators. Background Technology

[0002] In the field of neonatal intensive care, non-invasive ventilators are key medical devices for treating respiratory distress syndrome, hypoxemia, and other diseases. Their fit directly affects treatment outcomes and neonatal tolerance. The non-invasive ventilator headgear, as a core component connecting the neonatal head to the ventilator tubing, primarily functions to secure the tubing, ensure airway sealing, and reduce neonatal discomfort during treatment. It is an indispensable medical supply for non-invasive respiratory support therapy.

[0003] With the development of medical technology, various types of neonatal non-invasive ventilator caps have appeared on the market, but existing products still have many technical defects that urgently need to be addressed. From a structural design perspective, the tubing interfaces of existing caps mostly adopt an integrated fixing structure, meaning the tubing interface is directly molded or sewn to the cap body. However, different brands and models of non-invasive ventilators (such as Martin, Mindray Medical, Dräger, and Comen) have significant differences in the diameter and arrangement of their tubing interfaces, resulting in a cap typically only being compatible with a single brand or model of ventilator. This situation forces hospitals to maintain a corresponding inventory of caps for different ventilators, significantly increasing procurement costs and warehousing management pressure, and potentially delaying treatment due to a lack of compatible caps during emergency care. While some products attempt to achieve multi-brand compatibility by changing interface accessories, the disassembly and assembly of these accessories is complex, requiring tools, and the disassembly and assembly process can easily lead to a decrease in the sealing performance of the interface, causing air leakage and affecting the respiratory support effect.

[0004] Regarding fit, newborns' heads develop rapidly, with individual differences in head circumference that increases quickly with age. Existing head coverings often use snap-on or limited-position Velcro adjustments, limiting the range and precision of adjustment. When the head covering is too large, it fails to achieve an effective airway seal, leading to airflow leakage and insufficient airway pressure from the ventilator, affecting oxygenation. When it's too small, it causes continuous pressure on the newborn's scalp and blood vessels, potentially leading to pressure sores and poor blood circulation with prolonged use. Furthermore, newborns' ears are delicate, and most existing head coverings lack a dedicated ear-fitting structure. Some products with earmuffs often have fixed-angle designs that fail to adapt to the newborn's ear shape, easily shifting or causing pressure. The connection between the earmuff and the head covering lacks cushioning, allowing even slight head movements to cause the earmuff to fall off. This also fails to effectively block noise from hospital environments, such as alarms and conversations, which can disrupt sleep and indirectly reduce treatment tolerance.

[0005] In summary, existing neonatal non-invasive ventilator head caps have significant technical deficiencies in areas such as multi-brand tubing compatibility and adaptive adjustment of head circumference and ear size. There is an urgent need for a multifunctional neonatal non-invasive ventilator head cap with optimized structure, comprehensive functions, strong adaptability, and high safety to solve the aforementioned problems in the existing technology. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a multifunctional head cap for non-invasive neonatal ventilators, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional neonatal non-invasive ventilator headgear, comprising a head cover, multi-size compatible interface modules, an adaptive noise reduction component, a constant temperature regulation system, and a safety locking adjustment mechanism. The head cover is integrally molded from medical-grade elastic breathable fabric, with a ring-shaped fixing ring fixedly installed on its outer side. The fixing ring is used to enable quick assembly, disassembly, and positioning of the interface modules. The adaptive noise reduction component is symmetrically arranged on both sides of the head cover. The constant temperature regulation system is embedded inside the head cover and flexibly conforms to the neonatal head skin. The safety locking adjustment mechanism is used to achieve stepless adjustment of the head circumference and prevent loosening.

[0008] Through the above technical solutions, the head cover, made of medical elastic breathable fabric in one piece, ensures basic comfort and fit. The ring-shaped fixing ring enables quick assembly and disassembly and precise positioning of multi-size compatible interface modules. Combined with symmetrically arranged adaptive noise reduction components to block environmental noise, a constant temperature regulation system embedded inside the head cover to dynamically regulate head temperature and make it softly fit the newborn's skin, and a safety locking adjustment mechanism for stepless adjustment of head circumference and anti-loosening fixation, it achieves efficient adaptation to different brands of ventilator tubing, adaptive fit to the newborn's head circumference and ear contours, a constant temperature and comfortable environment during treatment, and stable anti-loosening wearing, greatly improving treatment adaptability and newborn tolerance.

[0009] Preferably, the interface module includes a medical fixation foam sponge, a tubing interface, a mounting ring, and connecting blocks. The inner side of the medical fixation foam sponge is adhered and fixed to the mounting ring. Multiple connecting blocks are fixed at equal intervals along the circumference of the outer side of the mounting ring. Each connecting block has a slot at its end away from the mounting ring. The fixing ring has an annular groove inside, and a rotating ring is slidably connected in the annular groove. A limiting member corresponding to each connecting block is fixedly connected to the inner side of the rotating ring. A connecting groove matching the shape of the connecting block is opened on the outer surface of the fixing ring. A rotating plate is fixedly connected to the outer side of the rotating ring. By rotating the rotating plate, the rotating ring is driven to rotate, causing the limiting member to engage or disengage from the slot, thereby locking or unlocking the interface module.

[0010] Through the above technical solution, the integration and fixation of medical fixation foam sponge and mounting ring, the precise positioning of the connecting block and the fixing ring connecting groove, and the rotating plate driving the rotating ring to drive the limiting component and the slot to rotate and engage / disengage, the interface module can be quickly disassembled and securely locked. This not only ensures efficient compatibility of multi-specification tubing interfaces with different brands of ventilators, but also improves the connection sealing performance through the tight contact of mechanical engagement, preventing airflow leakage. At the same time, the operation can be completed without additional tools, simplifying the process for medical staff and reducing the complexity of clinical use.

[0011] Preferably, the tubing interface is integrated on the outside of the medical fixation foam sponge, and the tubing interface includes at least three specifications: vertical double-hole type, horizontal double-hole type and vertical triple-hole type. The three specifications of tubing interface are adapted to the tubing connection requirements of different brands of ventilators. The medical fixation foam sponge is made of high-density medical antibacterial foam, and its contact surface with the newborn's forehead is provided with an arc-shaped pressure relief groove.

[0012] Through the above technical solution, the tubing interface and medical fixation foam form an integrated structure. The three different specifications of tubing interfaces can accurately match the tubing diameter and arrangement requirements of different brands of ventilators, realizing the function of one cap for multiple fits. It can meet the diverse clinical connection needs without replacing the entire set of caps. The high-density medical antibacterial foam can effectively inhibit bacterial growth and reduce the risk of infection. The arc-shaped pressure-reducing groove conforms to the physiological contour of the newborn's forehead, disperses contact pressure, and avoids pressure marks or discomfort caused by long-term wear, taking into account both connection compatibility and wearing safety.

[0013] Preferably, the adaptive noise-canceling earmuff assembly includes a noise-canceling earmuff, an adjustment plate, a rotating shaft, and a torsion spring. The adjustment plate is rotatably connected to the outside of the head cover via the rotating shaft. The torsion spring is sleeved on the outside of the rotating shaft, with its two ends abutting against the adjustment plate and the head cover, respectively. The noise-canceling earmuff is fixedly installed at the end of the adjustment plate away from the rotating shaft. The noise-canceling earmuff adopts a double-layer sound insulation structure, with an inner layer of medical memory foam sound insulation pad and an outer layer of waterproof and antibacterial fabric. The elastic force of the torsion spring ensures that the noise-canceling earmuff always conforms to the contour of the newborn's ear.

[0014] Through the above technical solution, the elastic force of the torsion spring provides a continuous and gentle fit driving force for the noise-canceling earmuffs. Combined with the rotational connection of the rotating shaft, the earmuffs can adapt to the differences in the ear contours and head movements of newborns, always maintaining a close fit. The double-layer sound insulation structure blocks noise transmission through the outer layer of fabric and absorbs sound wave energy through the inner layer of memory foam, achieving efficient noise reduction. At the same time, the waterproof and antibacterial fabric improves the convenience of cleaning and the safety of use, and improves the sleep quality and treatment tolerance of newborns during treatment.

[0015] Preferably, the safety locking adjustment mechanism includes a restraint strap, Velcro, and an adjustment buckle. There are two restraint straps, which are symmetrically fixed on both sides of the head cover. The end of each restraint strap is connected to the head cover through the adjustment buckle. The adjustment buckle is used to realize stepless adjustment of the length of the restraint strap. The ends of the two restraint straps away from the adjustment buckle are detachably connected by Velcro. The loop side and hook side of the Velcro are respectively set on the opposite inner side of the two restraint straps.

[0016] Through the above technical solutions, the stepless adjustment function of the adjustment buckle can accurately adapt to the individual differences in head circumference and growth and development needs of newborns, breaking through the limitations of traditional gear adjustment, and ensuring that the head cover fits well without pressure; the two symmetrically arranged restraint straps can be quickly and detachably connected by Velcro, and the inner side of the loop side and hook side fit together to ensure the connection is stable and avoid the Velcro directly contacting the skin and causing irritation. At the same time, the double fixing structure effectively prevents the head cover from loosening due to the newborn's movement, taking into account both wearing stability and ease of operation.

[0017] Preferably, the constant temperature control system includes a fixed box, which is fixedly installed on the outside of the headgear. A micro motor is fixedly connected to the outside of the fixed box, and the output end of the micro motor extends into the inside of the fixed box and is fixedly connected to an eccentric wheel. A hollow fixed column is fixedly connected to the inside of the fixed box, and a rubber piston is slidably connected inside the fixed column. A movable column is fixedly connected to the outside of the rubber piston. The end of the movable column away from the rubber piston passes through the fixed box and is fixedly connected to an abutment plate. The abutment plate is in contact with the outer surface of the eccentric wheel. A spring is sleeved on the outside of the movable column, and the two ends of the spring abut against the abutment plate and the outer wall of the fixed box, respectively.

[0018] Through the above technical solution, the micro motor drives the eccentric wheel to rotate, converting the rotational motion into the reciprocating linear motion of the contact plate. Combined with the elastic restoring force of the spring, the movable column and the rubber piston form a stable sealed sliding within the fixed column, thus constructing an efficient pneumatic transmission mechanism. This structure does not require complex pipelines and large drive components, is compact in size and operates stably, and can accurately provide power support for constant temperature regulation. At the same time, the closed design of the fixed box protects the internal components from contamination, improving the system's service life and clinical reliability.

[0019] Preferably, the outer surface of the fixing post is connected to a connecting pipe one and a connecting pipe two, and a one-way valve is installed inside the connecting pipe one and the connecting pipe two, and the two one-way valves have opposite conduction directions; the head cover has an airflow channel connected to the end of the connecting pipe two away from the fixing post, and multiple nozzles are evenly distributed on the inner side of the head cover, each of the nozzles is connected to the airflow channel, and the air outlet direction of the nozzles is obliquely away from the side of the newborn's head skin.

[0020] Through the above technical solution, the reverse one-way valve makes the connecting pipe one and the connecting pipe two form a directional airflow channel, ensuring that the external air is drawn in directionally and accurately delivered to the inside of the headgear when the piston moves; the airflow channel works in conjunction with the evenly distributed nozzles to make the airflow diffuse evenly into the inside of the headgear, and the air outlet is obliquely away from the skin to avoid the direct impact of the airflow causing discomfort, while forming a gentle airflow circulation to quickly remove heat from the head, taking into account both cooling efficiency and wearing comfort.

[0021] Preferably, a temperature sensor is fixedly installed on the inner side of the head cover near the newborn's temporal region. The temperature sensor is electrically connected to a micro motor. When the temperature sensor detects that the newborn's head skin temperature is higher than the upper threshold, it sends an electrical signal to start the micro motor. The micro motor drives the abutment plate, movable column, and rubber piston to reciprocate along the inside of the fixed column via the eccentric wheel. External air is drawn in through connecting pipe one and then sprayed out from the nozzle through connecting pipe two and the airflow channel to achieve cooling. When the temperature is lower than the lower threshold, the temperature sensor sends an electrical signal to control the micro motor to stop working.

[0022] Through the above technical solution, the temperature sensor takes advantage of the thin skin and rich blood vessels in the temporal region of newborns to accurately capture the core temperature data of the head and form a closed-loop control logic with the micro motor. When the temperature exceeds the preset threshold, the cooling mechanism is automatically activated, and when it is below the threshold, it stops in time, realizing dynamic and precise regulation of head temperature, avoiding discomfort caused by overheating or overcooling. At the same time, the automated control driven by electrical signals reduces the frequency of manual intervention by medical staff and improves the efficiency of clinical nursing.

[0023] Preferably, a sealing sleeve is provided at the penetration point between the movable column and the fixed box. The sealing sleeve is made of medical-grade silicone to prevent air leakage.

[0024] Through the above technical solution, the medical silicone sealing sleeve fills the gap between the movable column and the fixed box. Utilizing the flexible sealing properties of silicone, it effectively prevents air leakage, ensures stable internal air pressure of the fixed column, and guarantees the efficiency of air pressure transmission and the accuracy of constant temperature regulation. At the same time, the silicone material is soft and has good biocompatibility, avoiding friction noise or skin irritation during the reciprocating motion of the movable column, thus balancing sealing performance and safety of use.

[0025] This invention provides a multifunctional head cap for non-invasive neonatal ventilators. It has the following beneficial effects: 1. This invention utilizes a rotating engagement structure consisting of a fixed ring, a rotating ring, a limiting component, and a connecting block, along with a modular design for multi-specification (vertical double-hole, horizontal double-hole, and vertical triple-hole) tubing interfaces. This enables rapid adaptation and disassembly of tubing from different brands of ventilators, eliminating the need to replace an entire set of head caps for newborns. This significantly reduces hospital procurement and inventory costs, while also simplifying the operational process for medical staff and improving treatment preparation efficiency.

[0026] 2. This invention utilizes a rotating shaft, torsion spring, and an elastic linkage structure with noise-canceling earmuffs. Combined with the adjustable buckles and Velcro-straps on both sides of the head covering for stepless adjustment, the earmuffs adapt to the contours of a newborn's ears and maintain a stable fit. The head circumference adjustment flexibly adapts to the newborn's growth and development needs, avoiding air leakage caused by an overly loose head covering and reducing pressure on the scalp from an overly tight one. Simultaneously, the double-layered sound-insulating structure of the earmuffs blocks environmental noise, improving the newborn's sleep quality during treatment. 3. This invention achieves real-time monitoring and automatic temperature regulation of a newborn's head temperature through the linkage design of a temperature sensor, a micro motor, an eccentric wheel, a piston assembly, and a nozzle. When the temperature exceeds the threshold of 36℃-37.5℃, an airflow circulation cooling mechanism can be quickly activated. A gentle airflow is evenly delivered through the angled nozzle to prevent the head from becoming stuffy and sweaty. At the same time, the head cover is made of medical-grade elastic breathable fabric and antibacterial foam material, combined with an openable protective window design, which takes into account wearing safety, ease of cleaning, and practicality for clinical care. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the restraint strap structure of the present invention; Figure 3 This is a schematic diagram of the fixing ring structure of the present invention; Figure 4 This is a schematic diagram of the noise-canceling earmuff structure of the present invention; Figure 5 This is a schematic diagram of the medical fixation foam sponge structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixed box of the present invention; Figure 7 for Figure 5 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the fixing ring structure of the present invention; Figure 9 for Figure 8 Enlarged view of point B in the middle.

[0028] The components include: 1. Headgear; 2. Medical fixation foam sponge; 3. Pipe interface; 4. Fixing box; 5. Miniature motor; 6. Adjustment buckle; 7. Velcro; 8. Adjustment plate; 9. Noise-canceling earmuffs; 10. Restraint strap; 11. Rotating shaft; 12. Mounting ring; 13. Connecting block; 14. Fixing ring; 15. Limiting component; 16. Rotating ring; 17. Rotating plate; 18. Eccentric wheel; 19. Abutment plate; 20. Movable column; 21. Spring; 22. Fixing column; 23. Connecting pipe one; 24. Connecting pipe two; 25. Nozzle; 26. Connecting groove; 27. Slot; 28. Temperature sensor. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see the appendix Figure 1 - Appendix Figure 9 This invention provides a multifunctional neonatal non-invasive ventilator headgear, including a headgear 1, a multi-size compatible interface module, an adaptive noise reduction component, a constant temperature regulation system, and a safety locking adjustment mechanism. The headgear 1 is integrally molded from medical elastic breathable fabric, and a ring-shaped fixing ring 14 is fixedly installed on its outer side. The fixing ring 14 is used to realize the quick disassembly and positioning of the interface module. The adaptive noise reduction component is symmetrically arranged on both sides of the headgear 1. The constant temperature regulation system is embedded in the headgear 1 and flexibly fits the newborn's head skin. The safety locking adjustment mechanism is used to realize stepless adjustment of the head circumference and anti-loosening fixation.

[0031] Specifically, the head cover 1 is made of medical-grade elastic breathable fabric in one piece, utilizing the elastic tension of the fabric to adapt to the contour of the newborn's head, while forming a micro-air circulation through breathable pores to reduce skin irritation and stuffiness; the outer fixed ring structure fixing ring 14 evenly distributes the interface module installation pressure with a central positioning logic, providing a stable reference surface for pipeline connection, and realizing precise positioning and quick disassembly and assembly of the interface module; the adaptive noise reduction components are symmetrically arranged on both sides of the head cover 1, using elastic pre-tightening force and contour adaptive characteristics to ensure that the noise-canceling earmuffs 9 always fit the ears and block environmental noise; the constant temperature regulation system is embedded inside the head cover 1, dynamically regulating the head temperature through temperature sensor feedback and air pressure-driven airflow circulation, and flexibly fitting the newborn's head skin to avoid pressure; the safety locking adjustment mechanism relies on a stepless adjustment structure and a double anti-loosening design to adapt to individual differences in newborn head circumference and growth needs, ensuring that the head cover fits stably and does not loosen.

[0032] The interface module includes a medical fixation foam sponge 2, a tubing interface 3, an installation ring 12, and connecting blocks 13. The medical fixation foam sponge 2 is bonded and fixed to the inner side of the installation ring 12. Multiple connecting blocks 13 are fixed at equal intervals along the circumference on the outer side of the installation ring 12. Each connecting block 13 has a slot 27 at the end away from the installation ring 12. The fixing ring 14 has an annular groove inside, and a rotating ring 16 is slidably connected in the annular groove. The inner side of the rotating ring 16 is fixedly connected to a limiting member 15 corresponding to each connecting block 13. The outer surface of the fixing ring 14 has a connecting groove 26 that matches the shape of the connecting block 13. A rotating plate 17 is fixedly connected to the outer side of the rotating ring 16. By rotating the rotating plate 17, the rotating ring 16 is driven to rotate the limiting member 15, so that the limiting member 15 is engaged or disengaged from the slot 27, thereby locking or unlocking the interface module.

[0033] Specifically, the medical fixation foam sponge 2 and the mounting ring 12 constitute an independent functional unit, which not only ensures wearing safety by utilizing antibacterial and pressure-reducing properties, but also provides a stable bearing base for the pipeline interface 3. The connecting block 13 on the outside of the mounting ring 12 and the connecting groove 26 of the fixing ring 14 form a precise positioning fit to ensure the coaxiality and sealing of the interface module during installation.

[0034] The rotating ring 16 inside the fixed ring 14 can slide smoothly along the annular groove. By rotating the rotating plate 17, the limiting member 15 can be driven to rotate synchronously. The mechanical engagement of the limiting member 15 and the slot 27 of the connecting block 13 forms a self-locking structure, which can achieve a stable lock without additional tools. At the same time, the tight fit of the engagement surface can effectively ensure the airflow sealing performance and prevent leakage.

[0035] The reverse rotation plate 17 allows the limiting piece 15 to quickly disengage from the slot 27, enabling convenient disassembly of the interface module. Through simple mechanical operation logic, different specifications of tubing interfaces 3 can be quickly switched to adapt to various brands of ventilators, which simplifies the operation process for medical staff, reduces equipment adaptation costs, and balances practicality and adaptability flexibility.

[0036] The tubing interface 3 is integrated on the outside of the medical fixation foam sponge 2, and the tubing interface 3 includes at least three specifications: vertical double-hole type, horizontal double-hole type and vertical triple-hole type. The three specifications of tubing interface 3 are adapted to the tubing connection requirements of different brands of ventilators. The medical fixation foam sponge 2 is made of high-density medical antibacterial foam, and its contact surface with the newborn's forehead has an arc-shaped pressure relief groove.

[0037] Specifically, the tubing interface 3 adopts a multi-specification integrated design. Through differentiated structures such as vertical double-hole type, horizontal double-hole type, and vertical triple-hole type, it accurately matches the hole diameter and arrangement layout of tubing from different brands of ventilators, achieving compatibility and adaptation of a single interface module with multiple brands of equipment. It can meet diverse clinical needs without replacing the entire headgear. The medical fixation foam sponge 2 is made of high-density medical antibacterial foam. Relying on the antibacterial properties of the material itself, it inhibits bacterial growth and reduces the risk of skin infection in newborns. At the same time, its arc-shaped pressure-reducing groove on the forehead contact surface can conform to the physiological contour of the newborn's forehead, disperse local contact pressure, and avoid pressure marks or discomfort caused by long-term wear.

[0038] The integrated design of the pipeline interface 3 and the medical fixation foam sponge 2 not only ensures the sealing stability of the pipeline connection by leveraging the flexibility of the foam sponge and reducing air leakage, but also simplifies the structure through modular integration, making interface specification switching and head cap cleaning and disinfection more convenient, taking into account both clinical practicality and operational efficiency.

[0039] The adaptive noise-canceling earmuff assembly includes a noise-canceling earmuff 9, an adjustment plate 8, a rotating shaft 11, and a torsion spring. The adjustment plate 8 is rotatably connected to the outside of the head cover 1 via the rotating shaft 11. The torsion spring is sleeved on the outside of the rotating shaft 11, with its two ends abutting against the adjustment plate 8 and the head cover 1, respectively. The noise-canceling earmuff 9 is fixedly installed at the end of the adjustment plate 8 away from the rotating shaft 11. The noise-canceling earmuff 9 adopts a double-layer sound insulation structure, with the inner layer being a medical memory foam sound insulation pad and the outer layer being a waterproof and antibacterial fabric. The elastic force of the torsion spring ensures that the noise-canceling earmuff 9 always conforms to the contour of the newborn's ear.

[0040] Specifically, a torsion spring is sleeved on the outside of the rotating shaft 11. Its continuous elastic force drives the adjusting plate 8, ensuring the noise-canceling earmuffs 9 always tend to fit snugly towards the ear. The angle can be automatically fine-tuned according to the newborn's head movements and ear contour differences, avoiding the pressure caused by a rigid fit. The noise-canceling earmuffs 9 adopt a double-layer composite structure, following the noise reduction logic of sound wave blocking and energy absorption: the outer waterproof and antibacterial fabric forms the first sound barrier, blocking the propagation path of environmental noise, while also possessing anti-fouling and antibacterial properties, reducing the risk of infection; the inner medical memory foam sound-absorbing pad absorbs sound wave vibration energy through its own damping properties, further weakening the noise intensity. Furthermore, the flexible deformation capability of the memory foam can adapt to the ear contours of different newborns, improving the fit and seal.

[0041] The safety locking adjustment mechanism includes a restraint strap 10, Velcro 7, and an adjustment buckle 6. There are two restraint straps 10, which are symmetrically fixed on both sides of the head cover 1. The end of each restraint strap 10 is connected to the head cover 1 through the adjustment buckle 6. The adjustment buckle 6 is used to realize stepless adjustment of the length of the restraint strap 10. The ends of the two restraint straps 10 away from the adjustment buckle 6 are detachably connected through Velcro 7. The nap and hook sides of the Velcro 7 are respectively set on the opposite inner sides of the two restraint straps 10.

[0042] Specifically, the two restraint straps 10 are detachably connected by Velcro 7. The fit between the hook and loop sides forms the first layer of fixation, and the mechanical interlocking force of the contact surfaces ensures a stable connection while facilitating quick donning and disassembly. The self-locking feature of the adjustment buckle 6 and the interlocking fixation of the Velcro 7 form a double anti-loosening mechanism, effectively preventing the head cap from unexpectedly loosening due to the newborn's movements. This ensures the necessary sealing pressure for the airway and, through the symmetrical arrangement of the restraint straps 10, distributes the force evenly on the head, balancing wearing safety and adjustment flexibility.

[0043] The constant temperature control system includes a fixed box 4, which is fixedly installed on the outside of the head cover 1. A micro motor 5 is fixedly connected to the outside of the fixed box 4. The output end of the micro motor 5 extends into the inside of the fixed box 4 and is fixedly connected to an eccentric wheel 18. A hollow fixed column 22 is fixedly connected to the inside of the fixed box 4. A rubber piston is slidably connected inside the fixed column 22. A movable column 20 is fixedly connected to the outside of the rubber piston. The end of the movable column 20 away from the rubber piston passes through the fixed box 4 and is fixedly connected to an abutment plate 19. The abutment plate 19 is in contact with the outer surface of the eccentric wheel 18. The head cover 1 is equipped with a spring 21, the two ends of which abut against the abutment plate 19 and the outer wall of the fixing box 4, respectively. The outer surface of the fixing column 22 is connected to a connecting pipe 1 23 and a connecting pipe 24, respectively. Both connecting pipe 1 23 and connecting pipe 24 are equipped with one-way valves, and the two one-way valves have opposite conduction directions. The head cover 1 has an airflow channel inside that connects to the end of the connecting pipe 24 away from the fixing column 22. Multiple nozzles 25 are evenly distributed on the inner side of the head cover 1. Each nozzle 25 is connected to the airflow channel, and the air outlet direction of the nozzle 25 is obliquely away from the side of the newborn's head skin. A sealing sleeve is provided at the penetration point between the movable column 20 and the fixing box 4. The sealing sleeve is made of medical silicone to prevent airflow leakage.

[0044] Specifically, the micro motor 5 drives the eccentric wheel 18 to rotate, and the eccentric structure converts the rotational motion into the reciprocating linear motion of the abutment plate 19. Combined with the elastic restoring force of the spring 21, the movable column 20 and the rubber piston slide in a sealed manner within the fixed column 22, forming a stable air pressure change mechanism.

[0045] The reverse one-way valves within connecting pipe 1 (23) and connecting pipe 2 (24) create a directional airflow channel: when the piston moves outward, negative pressure is generated within the fixed column 22, drawing in external air through connecting pipe 1 (23); when the piston moves inward, the air pressure increases, and the air is delivered through connecting pipe 2 (24) to the airflow channel of the head cover 1, and then ejected through evenly distributed nozzles 25. A medical silicone sealing sleeve at the point where the movable column 20 passes through the fixed box 4 ensures the airtightness of the pneumatic transmission, preventing airflow leakage from affecting temperature control efficiency. The nozzles 25 are angled away from the skin, creating a gentle, annular air curtain that quickly removes heat from the newborn's head while preventing direct airflow impact on the skin, thus avoiding discomfort. Simultaneously, the airflow circulation assists in the internal airflow of the head cover 1, further improving wearing comfort and achieving efficient and safe dynamic temperature regulation.

[0046] A temperature sensor 28 is fixedly installed on the inner side of the head cover 1 near the newborn's temporal region. The temperature sensor 28 is electrically connected to the micro motor 5. When the temperature sensor 28 detects that the newborn's head skin temperature is higher than the upper threshold, it sends an electrical signal to start the micro motor 5. The micro motor 5 drives the abutment plate 19, the movable column 20, and the rubber piston to reciprocate along the inside of the fixed column 22 through the eccentric wheel 18. External air is drawn in through the first connecting pipe 23 and then sprayed out from the nozzle 25 through the second connecting pipe 24 and the airflow channel to achieve cooling. When the temperature is lower than the lower threshold, the temperature sensor 28 sends an electrical signal to control the micro motor 5 to stop working.

[0047] Specifically, the temperature sensor 28 is installed on the inside of the head cover 1 near the newborn's temporal region. Relying on the physiological characteristics of thin skin and rich blood vessels in this area, it accurately captures the core temperature data of the head. The temperature signal is converted into an electrical signal through the physical characteristics of the temperature sensing element, and a real-time comparison feedback is formed with the preset threshold.

[0048] When the detected temperature is higher than the upper limit of the threshold, the temperature sensor 28 sends an electrical signal to start the micro motor 5. The eccentric rotation of the eccentric wheel 18 converts the rotational motion into the reciprocating linear motion of the abutment plate 19. Combined with the elastic restoring force of the spring 21, the movable column 20 drives the rubber piston to slide back and forth in the fixed column 22 in a sealed manner, forming a stable air pressure difference to achieve directional airflow delivery.

[0049] When the temperature is below the lower threshold, the temperature sensor 28 sends an electrical signal to control the micro motor 5 to stop working, thereby terminating the airflow circulation and achieving dynamic and precise control of the newborn's head temperature. This avoids both overheating and stuffiness, as well as discomfort caused by excessively low temperatures.

[0050] Working Principle: This headgear utilizes a rotating, snap-fit ​​modular structure to enable rapid switching and stable connection of tubing from different brands of ventilators. First, based on the brand and model of the ventilator to be used (e.g., Martin, Mindray, Dräger), select the corresponding interface module. Align the connecting block 13 on the outer side of the mounting ring 12 of the interface module with the connecting groove 26 on the outer fixing ring 14 of the headgear 1. Insert the connecting block 13 along the connecting groove 26 until it aligns with the corresponding locking slot 27 at the end of the connecting block 13 and the limiting member 15 inside the fixing ring 14. Then, rotating the rotating plate 17 causes the rotating ring 16 to slide along the annular groove of the fixing ring 14. Simultaneously, the rotating ring 16 drives the inner limiting member 15 to rotate, causing the limiting member 15 to snap into the locking slot 27, thus locking the interface module in place. At this point, the tubing interface 3 remains sealed and aligned, allowing direct connection to the ventilator tubing. When it is necessary to replace the tubing to fit different brands, rotate the rotating plate 17 in the opposite direction to disengage the limiting piece 15 from the slot 27, and pull out the mounting ring 12 to remove the original interface module. Repeat the above steps to install the interface module of the corresponding specification, realizing the function of one cap for multiple adapters. In addition, the arc-shaped pressure relief groove of the medical fixation foam sponge 2 fits flexibly with the newborn's forehead, ensuring wearing comfort and sealing performance.

[0051] The head circumference adjustment achieves stepless adaptation through a safety locking adjustment mechanism, while the adaptive noise reduction component ensures wearing stability and noise reduction effect. During wear, the head cover 1 is placed on the newborn's head, and the lengths of the two restraint straps 10 are adjusted using the adjustment buckle 6 to ensure the head cover 1 fits the newborn's head without causing pressure. After adjustment, the two restraint straps 10 are secured with Velcro 7. The gear-type adjustment structure prevents the restraint straps 10 from slipping unexpectedly, achieving a locking mechanism. During this process, the adaptive noise reduction component adapts simultaneously: the adjustment plate 8 is rotatably connected to the head cover 1 via a rotating shaft 11. The torsion spring outside the rotating shaft 11 always provides elastic force, driving the adjustment plate 8 to move the noise-canceling earmuffs 9 towards the newborn's ears, allowing the earmuffs 9 to adapt to the newborn's ear contours and maintain a tight fit. The noise-canceling earmuffs 9 feature a double-layer sound insulation structure with an inner layer of medical memory foam sound insulation pads and an outer layer of waterproof and antibacterial fabric, which can effectively block environmental noise. At the same time, the torsion spring's cushioning effect can absorb the impact force generated by the slight head movements of newborns, preventing the earmuffs from shifting and ensuring a continuous and stable noise reduction effect.

[0052] A temperature sensor 28 located on the inner side of the head cover 1 near the temporal region detects the temperature of the newborn's head skin in real time and compares it with a preset threshold of 36℃-37.5℃. When the detected temperature exceeds the upper limit of the threshold, the temperature sensor 28 sends an electrical signal to activate the micro motor 5. The output of the micro motor 5 drives the eccentric wheel 18 to rotate. The eccentric wheel 18 drives the movable column 20 to reciprocate along the through hole of the fixed box 4 through its contact with the abutment plate 19. The movable column 20 simultaneously drives the rubber piston inside the fixed column 22 to slide back and forth in a sealed manner. The spring 21 outside the movable column 20 extends and retracts with the movement of the abutment plate 19 to ensure transmission stability. During the reciprocating motion of the rubber piston, a pressure difference is created inside the fixed column 22: when the piston moves outward, a negative pressure is generated inside the fixed column 22, drawing in external air through the connecting pipe 23; when the piston moves inward, the air pressure inside the fixed column 22 increases, forcing air into the airflow channel inside the headgear 1 through the connecting pipe 24. The airflow is then distributed through the airflow channel to multiple evenly distributed nozzles 25 and sprayed out at an angle away from the scalp, forming a gentle airflow circulation that quickly removes heat from the head, achieving cooling. When the temperature sensor 28 detects that the temperature is below the lower threshold, it sends an electrical signal to control the micro motor 5 to stop working, terminating the airflow circulation and maintaining a stable head temperature. The medical silicone sealing sleeve at the point where the movable column 20 passes through the fixed box 4 prevents airflow leakage, ensuring efficient air pressure transmission and adjustment accuracy.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional neonatal non-invasive ventilator head cap, characterized in that, The device includes a head cover (1), a multi-size compatible interface module, an adaptive noise reduction component, a constant temperature regulation system, and a safety locking adjustment mechanism. The head cover (1) is made of medical elastic breathable fabric in one piece, and a ring-shaped fixing ring (14) is fixedly installed on its outer side. The fixing ring (14) is used to realize the quick disassembly and positioning of the interface module. The adaptive noise reduction component is symmetrically arranged on both sides of the head cover (1). The constant temperature regulation system is embedded in the head cover (1) and fits flexibly against the newborn's head skin. The safety locking adjustment mechanism is used to realize stepless adjustment of the head circumference and anti-loosening fixation.

2. The multifunctional neonatal non-invasive ventilator head cap according to claim 1, characterized in that, The interface module includes a medical fixation foam sponge (2), a tubing interface (3), a mounting ring (12), and connecting blocks (13). The medical fixation foam sponge (2) is bonded and fixed to the inner side of the mounting ring (12). Multiple connecting blocks (13) are fixed at equal intervals along the circumference on the outer side of the mounting ring (12). Each connecting block (13) has a slot (27) at one end away from the mounting ring (12). The fixing ring (14) has an annular groove inside, and a rotating part is slidably connected in the annular groove. The rotating ring (16) has a fixedly connected limiting member (15) that corresponds one-to-one with the connecting block (13) on its inner side. The fixed ring (14) has a connecting groove (26) that matches the shape of the connecting block (13) on its outer surface. The rotating ring (16) has a fixedly connected rotating plate (17) on its outer side. By rotating the rotating plate (17), the rotating ring (16) is driven to rotate the limiting member (15), so that the limiting member (15) can be inserted into or removed from the slot (27), thereby locking or unlocking the interface module.

3. The multifunctional neonatal non-invasive ventilator head cap according to claim 2, characterized in that, The tubing interface (3) is integrated on the outside of the medical fixation foam sponge (2), and the tubing interface (3) includes at least three specifications: vertical double-hole type, horizontal double-hole type and vertical triple-hole type. The three specifications of tubing interface (3) are adapted to the tubing connection requirements of different brands of ventilators. The medical fixation foam sponge (2) is made of high-density medical antibacterial foam, and its contact surface with the newborn's forehead is provided with an arc-shaped pressure relief groove.

4. The multifunctional neonatal non-invasive ventilator head cap according to claim 1, characterized in that, The adaptive noise-canceling earmuff assembly includes a noise-canceling earmuff (9), an adjustment plate (8), a rotating shaft (11), and a torsion spring. The adjustment plate (8) is rotatably connected to the outside of the head cover (1) via the rotating shaft (11). The torsion spring is sleeved on the outside of the rotating shaft (11), and its two ends abut against the adjustment plate (8) and the head cover (1) respectively. The noise-canceling earmuff (9) is fixedly installed on the end of the adjustment plate (8) away from the rotating shaft (11). The noise-canceling earmuff (9) adopts a double-layer sound insulation structure, with the inner layer being a medical memory foam sound insulation pad and the outer layer being a waterproof and antibacterial fabric. The elastic force of the torsion spring ensures that the noise-canceling earmuff (9) always fits the contour of the newborn's ear.

5. The multifunctional neonatal non-invasive ventilator head cap according to claim 1, characterized in that, The safety locking adjustment mechanism includes a restraint strap (10), Velcro (7) and an adjustment buckle (6). There are two restraint straps (10), which are symmetrically fixed on both sides of the head cover (1). The end of each restraint strap (10) is connected to the head cover (1) through the adjustment buckle (6). The adjustment buckle (6) is used to realize stepless adjustment of the length of the restraint strap (10). The ends of the two restraint straps (10) away from the adjustment buckle (6) are detachably connected through Velcro (7). The nap and hook sides of the Velcro (7) are respectively set on the opposite inner sides of the two restraint straps (10).

6. The multifunctional neonatal non-invasive ventilator head cap according to claim 1, characterized in that, The constant temperature control system includes a fixed box (4), which is fixedly installed on the outside of the head cover (1). A micro motor (5) is fixedly connected to the outside of the fixed box (4). The output end of the micro motor (5) extends into the inside of the fixed box (4) and is fixedly connected to an eccentric wheel (18). A hollow fixed column (22) is fixedly connected to the inside of the fixed box (4). A rubber piston is sealed and slidably connected inside the fixed column (22). A movable column (20) is fixedly connected to the outside of the rubber piston. One end of the movable column (20) away from the rubber piston passes through the fixed box (4) and is fixedly connected to an abutment plate (19). The abutment plate (19) is in contact with the outer surface of the eccentric wheel (18). A spring (21) is sleeved on the outside of the movable column (20). The two ends of the spring (21) abut against the abutment plate (19) and the outer wall of the fixed box (4), respectively.

7. The multifunctional neonatal non-invasive ventilator head cap according to claim 6, characterized in that, The outer surface of the fixed post (22) is connected to a connecting pipe one (23) and a connecting pipe two (24). Both the connecting pipe one (23) and the connecting pipe two (24) are equipped with one-way valves, and the two one-way valves have opposite conduction directions. The head cover (1) has an airflow channel that is connected to the end of the connecting pipe two (24) away from the fixed post (22). Multiple nozzles (25) are evenly distributed on the inner side of the head cover (1). Each nozzle (25) is connected to the airflow channel, and the air outlet direction of the nozzle (25) is obliquely away from the newborn's head skin.

8. The multifunctional neonatal non-invasive ventilator head cap according to claim 6, characterized in that, A temperature sensor (28) is fixedly installed on the inner side of the head cover (1) near the temporal region of the newborn. The temperature sensor (28) is electrically connected to the micro motor (5). When the temperature sensor (28) detects that the temperature of the newborn's head skin is higher than the upper threshold, it sends an electrical signal to start the micro motor (5). The micro motor (5) is driven by the eccentric wheel (18) to reciprocate along the inside of the fixed column (22) through the abutment plate (19), the movable column (20) and the rubber piston. External air is drawn in through the first connecting pipe (23) and then sprayed out from the nozzle (25) through the second connecting pipe (24) and the airflow channel to achieve cooling. When the temperature is lower than the lower threshold, the temperature sensor (28) sends an electrical signal to control the micro motor (5) to stop working.

9. The multifunctional neonatal non-invasive ventilator head cap according to claim 6, characterized in that, A sealing sleeve is provided at the penetration point between the movable column (20) and the fixed box (4). The sealing sleeve is made of medical silicone to prevent air leakage.

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