Noninvasive ventilator mask compatible with stomach tube and bronchoscope

Abstract

The utility model discloses a noninvasive ventilator mask compatible with a stomach tube and a bronchoscope, and belongs to the technical field of medical auxiliary instruments. The non-invasive respirator mask comprises a mask body, a bandage and an air conveying bent pipe, open holes are formed in the portions, on the two sides of the air conveying bent pipe, of the mask body, sealing plugs and soft plugs are arranged on the open holes, the sealing plugs are used for completely sealing the open holes, and the soft plugs can allow a stomach tube or a bronchoscope to penetrate through and form sealing with the stomach tube or the bronchoscope; the soft plug is arranged in the mode that the soft plug can penetrate through the open hole when being pinched to be flat. The stomach tube and the bronchoscope can be used on the mask at the same time, the connection of the stomach tube, the bronchoscope and the mask does not affect the sealing performance of the mask, the stomach tube and the bronchoscope can penetrate through the mask, the mask can be flexibly assembled and disassembled at any time, and the non-invasive breathing machine mask is particularly suitable for a patient who discontinuously uses a non-invasive breathing machine and is provided with the stomach tube in an inserted mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary equipment, and in particular relates to a non-invasive ventilator mask that can be used with a gastric tube and a bronchoscope. Background Art

[0002] Non-invasive mechanical ventilation is an assisted breathing method that connects the patient to the ventilator through a non-invasive method such as a nasal mask, an oronasal mask or a full-face mask for positive pressure assisted ventilation. It is suitable for critically ill patients with various acute respiratory failure or patients with chronic respiratory failure at home. Non-invasive ventilators are mostly connected to the patient's face using an oronasal mask. Whether the mask is sealed to the patient's face is closely related to the effectiveness of the non-invasive ventilator. If the seal is not tight and the air leakage is too large, it will lead to a decrease in the ventilation effect of the ventilator, insufficient ventilation, prolonged ventilation time of the ventilator, repeated air leakage compensation of the ventilator causing unstable ventilation, poor coordination between man and machine leading to patient refusal to use, and other malignant clinical consequences.

[0003] In clinical practice, some patients who use non-invasive mechanical ventilation need to use a gastric tube at the same time. Because both exist on the patient's face, the gastric tube enters from the patient's nostrils, and the ventilator mask covers the patient's mouth and nose, so there is a problem of mutual influence. In clinical practice, there are two ways of using this situation: 1. Lead the gastric tube from the connection between the ventilator mask and the face (such as patent CN204734829U). This method does not affect the continuous use of gastric tube injection and feeding, but the gastric tube is led out from the side of the mask, causing the mask and the face to fit loosely and the seal to be loose. When the ventilator delivers air, the leakage increases, affecting the efficiency of the ventilator and causing a decrease in the treatment effect. 2. Coil the gastric tube inside the ventilator mask. This method does not affect the fit between the mask and the face and does not increase leakage. However, the volume of the gastric tube occupies the internal space of the mask, reducing the fixed dead space, affecting the ventilator's delivery of gas to the nasal passages, and reducing the ventilation treatment effect. Moreover, the gastric tube is coiled inside the mask and cannot be used continuously, which delays the patient's feeding and medication, resulting in delayed medication and feeding, insufficient nutrition supply to the patient, and inability to timely observe whether there is excessive gastric content and gastrointestinal bleeding through the gastric tube. Furthermore, the gastric tube is coiled and placed inside the ventilator, above the patient's mouth, nose and face, which is not very comfortable for the patient.

[0004] Some patients using non-invasive ventilators also need bronchoscopy at the same time. The bronchoscope is inserted through the nostril into the bronchus for examinations, alveolar lavage and other treatments. Clinically, there are also scenarios where a bronchoscope and a ventilator mask need to be used simultaneously. Since there is currently no non-invasive ventilator mask with an opening for bronchoscopy operation in clinical practice, the current ways to solve this clinical scenario are as follows: 1. Remove the non-invasive ventilator mask and replace it with an oxygen mask during bronchoscopy. At this time, the non-invasive ventilator stops working and cannot play the role of respiratory treatment. The patient may experience a decrease in oxygenation, poor ventilation, which may lead to an exacerbation of respiratory failure and pose a life threat. The operation risk increases significantly, especially for patients with a lower oxygenation index. 2. After sedating and analgesizing the patient, intubate the trachea and connect to an invasive ventilator, and perform bronchoscopy through the tracheal intubation. After the operation, remove the tracheal intubation after the patient wakes up and continue non-invasive ventilator treatment. This method may exacerbate the patient's respiratory failure, cause a drop in blood pressure and even risk of cardiac arrest due to the need for sedation, analgesia and tracheal intubation. Some patients may not be able to wean off the invasive ventilator after the change, resulting in failure of conversion to non-invasive ventilation and is less commonly used clinically. 3. If a patient using a non-invasive ventilator cannot be disconnected from the ventilator, bronchoscopy is not performed temporarily. At this time, operations such as sputum drainage treatment, examination and alveolar lavage to clarify the etiology of pulmonary infection cannot be performed on the patient through the bronchoscope, leading to deterioration of the condition, prolongation of the course of disease, and ultimately the patient cannot escape the fate of tracheal intubation.

[0005] Therefore, clinically, there is a need for a non-invasive ventilator mask that is compatible with the use of a gastric tube and bronchoscopy operation and does not affect the mask seal to adapt to the above clinical scenarios.

[0006] At present, there is no non-invasive ventilator mask that can be compatible with the operation of gastric tubes and bronchoscopes and has formed a large production scale to meet the above clinical needs. After retrieval, CN207429493U provides a ventilator mask for the intensive care unit that can be connected to a gastric tube. It consists of a ventilator mask and a gastric tube connector. The inside of the gastric tube connector is a circular through-hole. This ventilator mask for the intensive care unit that can be connected to a gastric tube is specifically used for the situation where patients in the intensive care unit use a breathing mask and a gastric tube at the same time. By disconnecting the gastric tube and connecting it to both ends of the gastric tube connector respectively, the problem of serious air leakage of the breathing mask when the breathing mask and the gastric tube are used at the same time is solved. When the breathing mask is not needed, as long as the gastric tube connector is removed first and then the gastric tubes connected to both ends of the gastric tube connector are disconnected, the breathing mask can be removed without affecting the normal use of the gastric tube; the magnets provided facilitate the stable installation of the gastric tube connector on the ventilator mask and are convenient for disassembly and assembly; the sealing rubber sleeve provided ensures the sealing effect of the gastric tube connector; the large-diameter connector, medium-diameter connector, and small-diameter connector provided facilitate the breathing mask to be applicable to gastric tubes of different models. This mask needs to cut the gastric tube, and the cut ends are fixed on both sides of the mask respectively. If the gastric tube inside the mask falls off due to reasons such as patient movement, the nutrient solution in the gastric tube may flow into the inside of the mask, and the patient is at risk of suffocation, etc. The length of the gastric tube retained after cutting is not easy to be fully adapted to the mask. When the patient does not use the ventilator mask, the cut gastric tube needs to be spliced again, which is complicated for patients who need to get on and off the ventilator multiple times, and increases the risk of gastric tube leakage.

[0007] Another multifunctional non-invasive ventilation mask invented by the Guangzhou Respiratory Research Institute (see the figure below) is equipped with a tube feeding hole, a sputum suction hole, a fiberbronchoscope operation hole, etc. CN102921085A. The invention relates to a non-invasive ventilation mask that can ensure continuous non-invasive mechanical ventilation while performing suction of secretions through a sputum suction tube, interventional diagnosis and treatment operations with a fiberbronchoscope, and endotracheal intubation through a fiberbronchoscope without leaking air. The exhaust volume through the inherent leakage holes of the mask is similar under different supporting pressures, and the gas discharged through the leakage holes can be directed to a specific environment, and a gastric tube channel is provided. It is characterized in that: on the mask surface of the non-invasive ventilation mask, there are an air inlet, a channel opening for a sputum suction tube or a fiberbronchoscope or an invasive endotracheal intubation tube, an air leakage port, two gastric tube channels, and two oxygen connection connectors. However, the design of this mask tube is too complicated, and the tube feeding hole has the following problems: 1. The silicone hole is hard and small in diameter, so the gastric tube treatment head cannot pass through it. Therefore, the gastric tube cannot be flexibly removed from the mask. It is only suitable for patients who need to use non-invasive ventilators continuously and have gastric tubes. There are few such usage scenarios. Most patients who need to take into account both non-invasive ventilators and gastric tubes in clinical practice use non-invasive ventilators intermittently, not continuously. 2. When the gastric tube is not in use, the tube feeding hole cannot be sealed, and the mask leaks a lot. 3. The opening of the bronchoscope operation hole is too large. After the silicone cover is removed, the mask cannot be sealed, and the ventilator leaks seriously, affecting the ventilation effect. This mask was once put into commercial production, but it has been discontinued due to unreasonable design, low clinical acceptance, and low marketization.

[0008] Based on the above situation, the utility model proposes a non-invasive ventilator mask that is compatible with gastric tubes and bronchoscopes, which can effectively solve the above problems. Utility Model Content

[0009] In order to solve the technical problems raised in the above-mentioned background technology, the utility model provides a non-invasive ventilator mask that is compatible with a gastric tube and a bronchoscope. A gastric tube can be used and bronchoscope operations can be performed on the mask at the same time, and the connection between the gastric tube, the bronchoscope and the mask does not affect the sealing of the mask. The gastric tube and the bronchoscope can pass through the mask, and the mask can be flexibly assembled and disassembled at any time. It is particularly suitable for patients with a gastric tube who intermittently use a non-invasive ventilator.

[0010] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0011] A non-invasive ventilator mask compatible with gastric tubes and bronchoscopes comprises a mask body, a strap and a gas delivery elbow, the mask body on both sides of the gas delivery elbow being provided with openings, the openings being provided with sealing plugs and soft plugs, the sealing plugs being used to completely seal the openings, the soft plugs being able to allow a gastric tube or a bronchoscope to pass through and form a seal therewith; the soft plugs being configured so that they can pass through the openings when they are pinched flat.

[0012] Preferably, the middle part of the soft plug has an elastic membrane with elasticity, and a through hole serving as an insertion opening for a gastric tube or a bronchoscope is arranged on the elastic membrane. The through hole is arranged such that when it is expanded, it can allow the gastric tube or the bronchoscope to pass through, and when it is contracted, it can completely wrap the outer wall of the gastric tube or the bronchoscope.

[0013] Preferably, the aperture diameters of the through holes are set to different sizes to adapt to gastric tubes or bronchoscopes with different outer diameters. Further, the aperture diameters of the through holes with different sizes are slightly smaller than the required outer diameters of the corresponding gastric tubes or bronchoscopes.

[0014] Preferably, the middle part of the soft plug is divided into a plurality of fan-shaped soft pieces, and the dividing positions of the plurality of fan-shaped soft pieces serve as insertion openings for the gastric tube or the bronchoscope.

[0015] The utility model has the following advantages and beneficial effects:

[0016] 1. The design of the openings on both sides of the mask and the soft plug can be compatible with the use of both gastric tubes and bronchoscopes at the same time, without the need to replace different types of masks, improving the flexibility and efficiency of medical operations and reducing the risk of cross-infection that may be brought about by replacing equipment.

[0017] 2. Through the design of the soft plug and the sealing plug, when it is necessary to insert a gastric tube or a bronchoscope for examination, the through hole on the soft plug can be opened to allow the feeding head of the gastric tube and the bronchoscope to pass through smoothly. When contracted, it can be shrunk into a smaller hole to completely wrap the outer walls of the gastric tube and the bronchoscope, ensuring that when the gastric tube or the bronchoscope is inserted, the mask can maintain good airtightness, reduce air leakage, ensure the effectiveness of non-invasive ventilator treatment, and at the same time protect the airway safety of the patient, reducing the irritation and discomfort to the patient. Similarly, the design of the plurality of fan-shaped soft pieces on the soft plug enables the soft plug to better adapt to insertion instruments with different diameters, and at the same time facilitates adjusting the position according to actual needs, increasing the comfort and accuracy of use. When it is not necessary to insert a gastric tube or a bronchoscope for examination, the sealing plug is used to seal the openings on both sides of the mask, ensuring the ventilation effect of the mask.

[0018] 3. When the soft plug is pinched flat, it can easily pass through the opening, facilitating the medical staff to quickly insert the gastric tube or the bronchoscope, simplifying the operation process and enhancing the timeliness of handling in emergency situations. Especially for patients using a non-invasive ventilator intermittently, the mask can be flexibly removed from the gastric tube completely or reinstalled again without affecting the normal use of the gastric tube, reducing the risk of gastric tube leakage fluid caused by the complex operation for patients who need to put on and take off the ventilator mask multiple times.

[0019] 4. By setting the vias with different apertures and the thickness of the elastic membrane (0.1 - 0.5 mm), a tight fit with the gastric tube and the bronchoscope is ensured, enabling adaptation to gastric tubes and bronchoscopes with different outer diameters, guaranteeing a good sealing effect, and reducing unnecessary air leakage and the risk of equipment slippage. Description of the Drawings

[0020] Figure 1 This is a schematic structural diagram of the non-invasive ventilator mask of the present utility model.

[0021] Reference numerals: 1 - mask body; 11 - opening; 2 - strap; 3 - air delivery elbow; 4 - sealing plug; 5 - soft plug; 51 - elastic membrane; 52 - via; 53 - fan-shaped soft piece; 54 - dividing point. Detailed Embodiment

[0022] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation on this patent; for better illustration of this embodiment, some components in the drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation on this patent.

[0023] This embodiment provides a non-invasive ventilator mask that can be compatible with the use of gastric tubes and bronchoscopes, aiming to solve the problem that existing masks cannot simultaneously meet the requirements of gastric tube feeding and bronchoscope examination, and improve the flexibility and safety of clinical applications.

[0024] As Figure 1 shown, the mask mainly consists of a mask body 1, a strap 2, and an air delivery elbow 3. The mask body 1 is made of a soft and breathable medical material to ensure the comfort and breathability of wearing. Special openings 11 are designed on the mask body 1 on both sides of the air delivery elbow 3, and each opening 11 is equipped with a pair of components: a sealing plug 4 and a soft plug 5. The sealing plug 4 is a relatively hard lid made of silicone material. The sealing plug 4 is used to completely close the opening 11 during non-examination or non-feeding periods to maintain the airtightness inside the mask, while the soft plug 5 is used in combination when needed to achieve leak-free penetration of the instrument. The structural design around the opening 11 allows the sealing plug 4 and the soft plug 5 to be easily inserted and removed, which is usually achieved through a tight friction fit or a snap-fit design, ensuring that the sealing plug 4 and the soft plug 5 can be tightly embedded in the opening 11 during use to prevent air leakage.

[0025] The design of the soft plug 5 is the key to the present invention, which has a unique deformation ability. An elastic membrane 51 with excellent elasticity is built into the central part of the soft plug 5. The thickness of the elastic membrane 51 is controlled between 0.1 and 0.5 mm, which can not only maintain sufficient flexibility to adapt to various operations, but also ensure the structural strength to avoid deformation during repeated use. The outer diameter of general gastric tubes on the market is 4.5 mm - 1.2 cm, and the outer diameter of bronchoscopes is 4.2 - 6.3 mm. In order to better adapt to gastric tubes or bronchoscopes with different outer diameter sizes, the aperture diameters of the through holes 52 on the elastic membrane 51 are designed to be of different sizes, aiming to adapt to the outer diameters required by most gastric tubes and bronchoscopes on the market, ensuring good adaptability and sealing performance. In the preferred embodiment of the present invention, the elastic membrane 51 is a thin film material made of polymer materials such as PU (polyurethane), PVC (polyvinyl chloride), TPU (thermoplastic polyurethane elastomer rubber), TPE (thermoplastic elastomer), TPR (thermoplastic rubber) or silica gel, which has stretchable elasticity and is soft.

[0026] In another embodiment, the middle part of the soft plug 5 is ingeniously divided into 4 or more fan-shaped soft pieces 53. The dividing points 54 of the multiple fan-shaped soft pieces 53 serve as the insertion ports for gastric tubes or bronchoscopes. These fan-shaped soft pieces 53 can flexibly adjust their shapes around the inserted gastric tubes or bronchoscopes without compromising the sealing performance, increasing the comfort of use and the stability of sealing. The material of the soft plug 5 can be selected as rubber.

[0027] In addition, the face mask further includes a forehead bracket installed at the top of the face mask body 1 for contacting the patient's forehead. The forehead bracket can help the face mask fit firmly on the patient's face, especially when the patient is moving or sleeping, preventing the face mask from shifting or falling off, and ensuring continuous and effective sealing.

[0028] During the operation of removing the face mask, medical staff only need to gently squeeze the soft plug 5 to make it flatten and easily pass through the opening 11 towards the inner side of the face mask. Then, the remaining part of the gastric tube is drawn out from the opening 11 on the face mask, thereby separating the gastric tube from the face mask. The removed face mask is placed in other positions without occupying clinical use space. When the face mask needs to be reinstalled, the soft plug 5 is pinched flat and passed through the opening 11 in the opposite direction and installed on the opening 11. Then, the face mask is worn on the patient's face again. This design greatly simplifies the operation process of repeatedly putting on and taking off the ventilator face mask. Especially in emergency treatment scenarios, it can quickly complete the access of instruments, effectively shorten the preparation time, and improve the treatment efficiency.

[0029] In summary, the non-invasive ventilator face mask of this embodiment, through its unique soft plug design, not only achieves high compatibility with the use of gastric tubes and bronchoscopes, but also ensures high efficiency, safety and patient comfort in various medical operations. It is an ideal solution to improve the clinical work efficiency and reduce the risk of cross-infection.

[0030] Based on the description and drawings of the present utility model, those skilled in the art can easily manufacture or use a non-invasive ventilator mask that is compatible with the use of a gastric tube and a bronchoscope, and can produce the positive effects recorded in the present utility model.

[0031] Unless otherwise specified, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in the present utility model are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the drawings and according to specific circumstances.

[0032] Unless otherwise clearly defined and limited, in the present utility model, if there are terms such as "set", "connected" and "connected", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The above is only a preferred embodiment of the present utility model, and does not impose any formal limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model falls within the protection scope of the present utility model.

Claims

1. A non-invasive ventilator mask compatible with a gastric tube and a bronchoscope, comprising a mask body (1), a strap (2) and a gas delivery elbow (3), characterized in that: The mask body (1) is provided with openings (11) on both sides of the gas delivery elbow (3), and the openings (11) are provided with sealing plugs (4) and soft plugs (5). The sealing plugs (4) are used to completely seal the openings (11), and the soft plugs (5) can allow a gastric tube or a bronchoscope to pass through and form a seal therewith; the soft plugs (5) are configured so that they can pass through the openings (11) when they are squeezed flat.

2. The non-invasive ventilator mask compatible with gastric tube and bronchoscope according to claim 1, characterized in that: The middle part of the soft plug (5) has a stretchable elastic membrane (51), and the elastic membrane (51) is provided with a through hole (52) serving as an insertion port for a gastric tube or a bronchoscope. The through hole is configured such that: when the through hole is expanded, the gastric tube or the bronchoscope can be allowed to pass through, and when the through hole is contracted, the outer wall of the gastric tube or the bronchoscope can be completely wrapped.

3. The non-invasive ventilator mask compatible with gastric tube and bronchoscope according to claim 2, characterized in that: The apertures of the through holes (52) are set to different sizes to fit stomach tubes or bronchoscopes with different outer diameters.

4. The non-invasive ventilator mask compatible with gastric tube and bronchoscope according to claim 2, characterized in that: The thickness of the elastic film (51) is 0.1-0.5 mm.

5. The non-invasive ventilator mask compatible with gastric tube and bronchoscope according to claim 1, characterized in that: The middle part of the soft plug (5) is divided into a plurality of fan-shaped soft sheets (53), and the division points (54) of the plurality of fan-shaped soft sheets (53) serve as insertion ports for a gastric tube or a bronchoscope.

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