Adjustable sterile oxygen inhalation mask for minimally invasive surgery of head and face

Abstract

The application relates to the technical field of respiratory masks, in particular to an adjustable sterile oxygen inhalation respiratory mask for head and face minimally invasive surgery, which comprises a nasal mask, the nasal mask comprises a mask body, the mask body is provided with a breathing oxygen supply connecting port or a plurality of hollow ventilation structures; a protective mask is spread outwards around the mask body, and the protective mask is a flexible sheet structure; during use, the mask body is covered on the nose area of a user, the protective mask covers the face of the user, a hollow surgical window is arranged on the protective mask and corresponds to the surgical area of the user, and the position of the surgical window can be adjusted by moving the surgical window. The application is applied to head and face minimally invasive surgery, solves the significant contradiction between the oxygen inhalation demand of a patient and the sterile covering demand of a surgical area in the existing head and face minimally invasive surgery, and solves the problem that a conventional oxygen inhalation mask and a surgical drape cannot be effectively integrated, which influences the smooth breathing of the patient and the stability of oxygen supply and also interferes with the operation of a surgeon.

Description

Technical Field

[0001] This application relates to the field of respiratory mask technology, and in particular to an adjustable sterile oxygen breathing mask for minimally invasive head and face surgery. Background Technology

[0002] Minimally invasive head and face surgery is a common and delicate type of surgery in ophthalmology, otolaryngology, maxillofacial surgery, and plastic and cosmetic surgery. Maintaining a sterile environment in the surgical area is crucial for ensuring surgical safety and preventing postoperative infection. Therefore, clinically, sterile surgical drapes or sterile blankets are typically used to cover a large area of ​​the patient's head and face, exposing only the surgical area. However, this routine procedure has a significant negative impact on the patient's breathing patency.

[0003] In actual surgical procedures, after sterile drapes are applied to the patient's head and face, the drapes often adhere tightly to the patient's mouth and nose due to their own weight and the effects of the surgical manipulation, directly compressing or obstructing the patient's natural airway. Patients undergoing minimally invasive head and face surgery are often under local anesthesia or conscious sedation, preserving their spontaneous breathing function. However, the tight coverage of the drapes significantly increases respiratory resistance and drastically compresses the ventilation space. Clinical observations have shown that approximately 10 minutes after being covered by the drapes, patients may experience varying degrees of difficulty breathing, a feeling of suffocation, chest tightness, and difficulty breathing. For elderly patients with underlying cardiovascular, pulmonary, or cerebrovascular diseases, the impact of this ventilation obstruction is even more severe, potentially leading to decreased blood oxygen partial pressure, increased carbon dioxide partial pressure, and even inducing intraoperative hypertension, tachycardia, and other cardiovascular events. Some patients, unable to tolerate the suffocating feeling under the drapes, exhibit restlessness and agitation, and in severe cases, may even be forced to interrupt or abandon the surgery.

[0004] To alleviate the aforementioned problems, nasal cannula oxygen therapy is commonly used in clinical practice for intraoperative oxygen supply to patients. Nasal cannula oxygen therapy can indeed increase the concentration of inhaled oxygen and improve blood oxygen saturation to some extent. However, nasal cannula oxygen therapy still has many limitations in practical application. First, the nasal cannula itself is placed in the patient's nasal vestibule, and after being covered with sterile drapes, the fixation of the nasal cannula is easily affected by the pressure of the drapes, leading to displacement or dislodgement, resulting in interruption or instability of oxygen supply.

[0005] In summary, there is a significant conflict between the patient's oxygen needs and the need for sterile coverage of the surgical area in current minimally invasive head and face surgeries. Conventional oxygen masks cannot be effectively integrated with surgical drapes, affecting both the patient's breathing patency and oxygen supply stability, and interfering with the surgeon's operation. Therefore, there is an urgent need in this field for an adjustable oxygen mask that can simultaneously meet the requirements of intraoperative oxygen supply, sterile facial coverage, and surgical operating space. Summary of the Invention

[0006] The purpose of this application is to propose an adjustable sterile oxygen mask for minimally invasive head and face surgery. By applying it to minimally invasive head and face surgery, this application addresses the significant contradiction between the patient's oxygen needs and the need for sterile coverage of the surgical area in existing minimally invasive head and face surgeries. Conventional oxygen masks cannot be effectively integrated with surgical drapes, which affects both the patient's breathing patency and oxygen supply stability, and also interferes with the surgeon's operation.

[0007] To achieve the above objectives, this application adopts the following technical solution: An adjustable sterile oxygen-inhaling mask for minimally invasive head and face surgery includes: A nasal mask, comprising a mask body, which has a breathing oxygen supply connection port or several perforated ventilation structures. The protective face shield extends outwards around the face shield body and has a flexible sheet structure. In use, the mask body covers the user's nose area and the protective mask covers the user's face. The surgical window on the protective mask corresponds to the user's surgical area. When the position of the surgical window needs to be adjusted, the position of the surgical window can be adjusted by moving the surgical window based on the flexible feature of the mask body.

[0008] Based on the above scheme and as a preferred option, the mask body is a transparent mask body.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the protective mask includes a first body part, a second body part and a third body part; A mask body is provided on the first body part for covering the user's lip area and forehead area when in use. The second and third body parts correspond to the left and right sides of the user's face, respectively, and the sides of the second and third body parts are detachably and sealed to the sides of the first body part.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: surgical windows are pre-set on both sides of the length direction of the second body and the third body.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the side of the protective mask facing the user is provided with an adhesive surface.

[0012] Based on the above scheme and as a preferred option: the protective mask is a flexible silicone sheet mask, and the adhesive surface is a physical adsorption surface.

[0013] Based on the above scheme and as a preferred option, the adhesive surface is a self-adhesive surface.

[0014] Based on the above solution and as a preferred embodiment of the above solution, it further includes a wearing assistance device, which is connected to the mask body and is used to maintain the wearing relationship between the mask body and the user during use.

[0015] Based on the above solution and as a preferred embodiment of the above solution: the wearing assistance device includes multiple adhesive patches surrounding the periphery of the mask body, with the adhesive patches located on the side of the protective mask closer to the user's face.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the wearing assistance device includes a clamping seat, a connecting rod is provided on the clamping seat, and a connecting part for connecting the mask body is provided at the end of the connecting rod away from the clamping seat.

[0017] Compared with the prior art, this application has the following beneficial effects: This adjustable sterile oxygen mask for minimally invasive head and face surgery provides reliable respiratory support via the nasal mask and establishes sterile protection through the protective mask. This adjustable sterile oxygen mask for minimally invasive head and face surgery eliminates the significant contradiction between the patient's oxygen needs and the need for sterile coverage of the surgical area in existing minimally invasive head and face surgeries. It also overcomes the problem of conventional oxygen masks and surgical drapes not being effectively integrated, which affects both the patient's breathing patency and oxygen supply stability, and interferes with the surgeon's operation.

[0018] Specifically, on the one hand, the adjustable sterile oxygen breathing mask for minimally invasive head and face surgery achieves the simultaneous completion of two functions: intraoperative oxygen inhalation and sterile facial coverage through the integrated design of the nasal mask and the protective mask, avoiding the cumbersome operation and poor coordination problems caused by wearing oxygen masks and surgical drapes separately. On the other hand, by utilizing the flexible sheet structure of the protective mask, surgical windows can be flexibly opened according to the needs of the surgery while ensuring coverage, so that the surgical area can be fully exposed without affecting the surgeon's field of vision and the entry and exit of instruments. Meanwhile, the position of the surgical window can be adjusted as needed based on the flexible features of the mask itself. The operation is simple and quick, without the need for additional tools or the need to completely remove the entire mask and then reposition it, which greatly reduces the time cost and operational risks of intraoperative adjustment. Meanwhile, the relative position of the mask body and the protective mask is maintained during the adjustment process, ensuring that the oxygen supply and coverage functions are not interrupted or malfunction due to the adjustment of the window position.

[0019] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 1 ; Figure 2 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 2 ; Figure 3 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 3 ; Figure 4 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 4 ; Figure 5 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 5 ; Figure 6 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 6 ; Figure 7 This illustration shows the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application. Figure 7 .

[0022] Explanation of reference numerals in the attached figures: 100. Nasal mask; 101. Mask body; 102. Breathing and oxygen supply connection port; 103. Ventilation structure; 200. Protective face shield; 201. Operating window; 202. Transparent patch; 203. Adhesive surface; 300. The first body part; 400. Second Body Section; 500. Third Body Section; 600. Protective layer; 700. Wearing assistive devices; 801. Adhesive sheet; 901. Clamping seat; 902. Connecting rod; 903. Connecting part. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0025] In current minimally invasive head and face surgeries, there is a significant conflict between the patient's oxygen needs and the requirement for sterile coverage of the surgical area. Conventional oxygen masks and surgical drapes cannot be effectively integrated, affecting both the patient's breathing patency and oxygen supply stability, and interfering with the surgeon's operation.

[0026] See Figures 1-7 This application discloses an adjustable sterile oxygen breathing mask for minimally invasive head and face surgery, which can simultaneously meet the adjustable needs of intraoperative oxygen supply, sterile facial coverage and surgical operation space, and solve the clinical pain point that the sterile surgical drape covers the patient's lips in clinical surgical scenarios, causing breathing obstruction and causing suffocation and discomfort.

[0027] In the embodiments of this disclosure, such as Figure 1 and Figure 4 As shown, the adjustable sterile oxygen-inhaling breathing mask for minimally invasive head and face surgery mainly includes a nasal mask 100 and a protective mask 200. The nasal mask 100 includes a mask body 101, which has a breathing oxygen supply connection port 102 or several perforated ventilation structures 103. The protective mask 200 extends outwards around the mask body 101 and is a flexible sheet structure.

[0028] Among them, the oxygen supply connection port 102 can be a conventional interface for a conventional breathing mask; the ventilation structure 103 can be a grid structure or a perforated structure arranged on the mask body 101.

[0029] In use, the mask body 101 covers the user's nose area, the protective mask 200 covers the user's face, and the surgical window 201 with a cutout on the protective mask 200 corresponds to the user's surgical area. When it is necessary to adjust the position of the surgical window 201, the position of the surgical window 201 can be adjusted by moving the surgical window 201 based on the flexible characteristics of the mask body 101.

[0030] The core principle of this adjustable sterile oxygen mask for minimally invasive head and face surgery is: The mask body 101 has two design states: an oxygen supply connection port 102 or a ventilation structure 103.

[0031] like Figure 4 As shown, when the mask body 101 is provided with an oxygen supply connection port 102, the mask body 101 of the nasal mask 100 serves as a basic support frame for the nasal breathing area. It is used to cover the user's nasal area during use to form a locally sealed oxygen supply space. The breathing oxygen supply connection port 102 serves as a gas passage interface between the external oxygen source and the internal space of the mask body 101 to achieve continuous oxygen supply.

[0032] like Figure 7 As shown, when the ventilation structure 103 is provided on the mask body 101, the mask body 101 with the ventilation structure 103 forms an independent support cavity at the patient's mouth and nose position, which can separate the sterile surgical drape from the mouth and nose, prevent the mouth and nose from being sealed and covered, thereby maintaining unobstructed breathing during the operation and improving the patient's feeling of stuffiness; achieving the goal of ensuring ventilation without compromising the aseptic operation standards of the surgical area.

[0033] The protective mask 200 extends outward from the mask body 101 as the center. Utilizing the deformable characteristics of its flexible sheet structure, it serves two purposes: firstly, by covering the unoperated area of ​​the user's face to achieve a physical isolation barrier function, thereby achieving sterile protection of the surgical area; secondly, it provides a carrier area that can be cut or pre-set for the surgical window 201.

[0034] When the position of the surgical window 201 does not correspond to the actual surgical area, the operator uses the flexibility of the mask body 101 itself, that is, the mask body 101 has a certain degree of flexibility and displacement, to directly apply a displacement force to the protective mask 200, so that the protective mask 200 slides or rotates relative to the user's face, thereby causing the surgical window 201 opened on it to change position until the surgical window 201 is realigned with the user's actual surgical area.

[0035] For reference Figure 3The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery shown is a protective mask 200 with an integral structure. The protective mask 200 and the nasal mask 100 are fixedly connected to each other. The surgical window 201 on the protective mask 200 can be opened according to the application settings.

[0036] On the one hand, the adjustable sterile oxygen breathing mask for minimally invasive head and face surgery achieves the simultaneous completion of two functions: intraoperative oxygen inhalation and sterile facial coverage through the integrated design of the nasal mask 100 and the protective mask 200, avoiding the cumbersome operation and poor coordination problems caused by wearing oxygen masks and surgical drapes separately. On the other hand, by utilizing the flexible sheet structure of the protective mask 200, the surgical window 201 can be flexibly opened according to the needs of the surgery while ensuring coverage, so that the surgical area can be fully exposed without affecting the surgeon's field of vision and the entry and exit of instruments. Meanwhile, the position of the surgical window 201 can be adjusted as needed based on the flexible features of the mask body 101. The operation is simple and quick, without the need for additional tools or the need to completely remove the entire mask and then reposition it, which greatly reduces the time cost and operational risks of intraoperative adjustment. Meanwhile, the relative positional relationship between the mask body 101 and the protective mask 200 is maintained during the adjustment process, ensuring that the oxygen supply and coverage functions are not interrupted or malfunctioned due to the adjustment of the window position.

[0037] In this embodiment, the mask body 101 is a transparent mask body. Specifically, the mask body 101 is made of a transparent material (such as transparent medical polycarbonate, transparent polymethyl methacrylate, or transparent medical silicone), which gives the mask body 101 good optical transmission performance in use. After the mask body 101 is placed over the user's nose area, external light can penetrate the wall thickness of the mask body 101 to reach the user's nose and surrounding facial area. At the same time, the operator's line of sight can also directly observe the skin color, mucous membrane color, nasal shape, and whether there are any abnormalities such as condensation or secretions inside the mask body 101 in the covered area.

[0038] On the one hand, the operator can observe changes in the skin color and mucous membrane color of the user's nasal area in real time without removing or moving the mask body 101, which facilitates rapid identification of critical situations such as hypoxia and cyanosis, significantly improving the convenience and timeliness of intraoperative monitoring. On the other hand, the transparent mask body 101 allows the operator to directly confirm whether the mask body 101 is in good contact with the user's nasal area, making it easy to detect displacement or air leakage caused by changes in body position or manipulation. At the same time, it achieves full-process visual monitoring of the nasal area without compromising the sterile covering, reducing the possibility of infection risk introduced by repeatedly lifting the mask for observation.

[0039] Furthermore, the protective face shield 200 is also a transparent protective face shield 200. Specifically, the protective face shield 200 can typically be made of polymer materials such as polycarbonate (PC) and polyethylene terephthalate (PET), which typically have good light transmittance, a certain degree of flexibility and biocompatibility.

[0040] The advantages are twofold: first, it ensures a wide field of vision, facilitating observation, allowing medical staff to directly observe the covered area through the transparent protective face shield 200, such as changes in the patient's facial skin color and the position of surgical instruments; second, it enhances operational safety, as the transparent design allows medical staff to better judge the relative position of the face shield to the patient's face during operation. Generally, doctors mark the surgical location and surgical path on their face during surgery, and the transparent protective face shield 200 allows medical staff to clearly see their markings during the operation, reducing the risk of operational errors.

[0041] In the embodiments of this disclosure, such as Figure 1 As shown, the protective mask 200 includes a first body portion 300, a second body portion 400, and a third body portion 500; a mask body 101 is provided on the first body portion 300 for covering the user's lip area and forehead area when in use; the second body portion 400 and the third body portion 500 correspond to the left and right sides of the user's face, respectively, and the sides of the second body portion 400 and the third body portion 500 are detachably and sealingly fitted to the sides of the first body portion 300.

[0042] The first body part 300 serves as the central support unit, upon which the mask body 101 is fixedly mounted. Utilizing its large area and stable, scientifically positioned positioning when covering the user's lips and forehead, the first body part 300 provides a robust support foundation for the mask body 101. The second body part 400 and the third body part 500 serve as independent left and right wing units, respectively, corresponding to the left and right cheekbone and cheek areas of the user's face. The connection between the second and third body parts 400 and the first body part 300 is a detachable, sealed fit. This means that an airtight connection is achieved in the fitted state through adhesive (self-adhesive) overlapping and peelable bonding, while allowing for separation under external force. This design enables the protective mask 200 to maintain overall coverage while also allowing for independent operation of specific zones.

[0043] Under normal use, the protective mask 200 achieves complete coverage of the user's face with no blind spots, ensuring sterile isolation of the area surrounding the surgical site. Simultaneously, the detachable and sealed structure between the second body part 400 and the third body part 500 and the first body part 300 allows the surgeon to selectively separate one or both sides of the body part from the first body part 300 according to the actual surgical approach, thus obtaining greater lateral operating space without moving the entire mask body 101 and the protective mask 200 as a whole. Furthermore, the detachable and re-attached feature allows for flexible adjustment of the coverage area at different stages of surgery, improving the mask's adaptability to different surgical approaches and surgeons' operating habits. Both separation and attachment operations can be performed independently without affecting the oxygen supply and sealing status of the mask body 101 on the first body part 300, achieving a high degree of synergy between zoned operation and overall function.

[0044] Furthermore, surgical windows 201 are pre-set on both sides of the second body part 400 and the third body part 500 along their length.

[0045] Surgical windows 201 are pre-formed or pre-cut on both sides of the second body portion 400 and the third body portion 500 along their length (i.e., the lateral extension dimension along the left-right direction of the user's face), specifically at both ends of the edge region of the second body portion 400 away from the first body portion 300 and the edge region of the third body portion 500 away from the first body portion 300. These surgical windows 201 are pre-formed when the mask is not in use, eliminating the need for the operator to cut or create openings during surgery. The pre-set positions of the surgical windows 201 on the second body portion 400 and the third body portion 500 correspond to common minimally invasive surgical approach areas on the left and right sides of the user's face (such as the temporal approach, preauricular approach, mandibular angle approach, etc.).

[0046] The advantages are, such as Figure 1 , Figure 2 , Figure 4 As shown, by pre-setting the surgical window 201, the surgeon is eliminated from manually cutting the opening during the operation, which significantly shortens the preoperative preparation time and avoids the risk of debris falling into the surgical area or the user's face due to cutting during the operation. Furthermore, by pre-setting the surgical window 201 on both sides of the length direction of the second body part 400 and the third body part 500, the mask can provide a ready-to-use surgical passage when covering both sides of the face, which is suitable for bilateral surgery or intraoperative backup on the opposite side, without the need to temporarily adjust the mask direction during the operation.

[0047] Furthermore, the edges of the pre-set window (surgical window 201) can be reinforced or smoothed, which more effectively prevents tearing and expansion during surgery compared to rough edges formed by temporary cutting during the operation, ensuring the stability of the size and shape of the surgical window 201 throughout the entire operation. The dual-sided pre-set window allows the surgeon to choose either side for surgical operation according to actual needs, while the unused side of the pre-set window remains closed and covered, without increasing the exposed area. The closed and covered state of the pre-set window can be maintained by attaching a transparent patch 202, which can be removed when needed.

[0048] In some implementations, such as Figure 4 As shown, the protective mask 200 has a peelable protective layer 600 on the side facing the user (facing the facial skin), thereby maintaining the sterility and cleanliness of the protective mask 200, or allowing for adhesive protection. When the protective mask 200 is composed of a first body portion 300, a second body portion 400, and a third body portion 500, the protective layer 600 is independently provided on each of the first body portion 300, the second body portion 400, and the third body portion 500.

[0049] In this embodiment, the protective face shield 200 has an adhesive surface 203 on the side facing the user. By providing the adhesive surface 203 on the side of the protective face shield 200 facing the user's skin (i.e., the inner side), this adhesive surface 203 serves as an interfacial bonding layer between the protective face shield 200 and the user's facial skin. In use, after the protective face shield 200 covers the user's face, applying appropriate pressure establishes an adhesive bond between the adhesive surface 203 and the user's facial skin surface. The interfacial adhesion between the adhesive surface 203 and the skin secures the protective face shield 200 to the predetermined coverage position on the user's face.

[0050] The advantages of this design are that the adhesive surface 203 allows the protective mask 200 to be directly adhered to the user's facial skin, avoiding the compression of the user's head caused by traditional headbands or straps, thus improving wearing comfort, especially suitable for scenarios requiring long-term surgery. Simultaneously, the adhesive method reliably locks the relative position between the protective mask 200 and the user's facial skin, preventing slippage or misalignment due to contact or pulling of instruments during surgery, ensuring continuous alignment of the surgical window 201 with the surgical area. Furthermore, the adhesive surface 203 forms a circumferentially closed interface between the protective mask 200 and the facial skin, effectively preventing external contaminants from entering from the mask's edges and reducing the leakage path of oxygen inside the mask. Moreover, the adhesive method makes the movement of the mask body 101 more controllable; when the operator applies force to move it, the adhesive force provides appropriate resistance to prevent excessive displacement, and after the mask is moved into place, the adhesive force can re-establish fixation in the new position, achieving a balance between adjustability and reliability.

[0051] Furthermore, the protective face shield 200 is entirely made of flexible silicone material in a sheet structure, utilizing the inherent flexibility, high elasticity, and biocompatibility of silicone as the base material of the face shield. The adhesive surface 203 is not fixed by chemical bonding of the adhesive layer, but rather by the physical adsorption effect generated between the silicone material and human skin through van der Waals forces, surface tension, and other physical interactions. Specifically, when the silicone surface and the skin surface are tightly adhered, the adsorption and fixing force formed at their interface due to intermolecular forces. This physical adsorption surface can maintain a stable adhesion state without external force, but it can be separated when subjected to external shear or peeling forces exceeding the adsorption force threshold. After separation, no adhesive residue remains on the silicone surface.

[0052] During use, the flexible silicone sheet, serving as the base material for the protective mask 200, possesses excellent flexibility, allowing it to adaptively conform to the complex three-dimensional curved structure of the user's face (such as nasolabial folds, cheekbone protrusions, and other uneven areas), achieving full coverage without wrinkles and effectively eliminating gap leakage problems caused by poor fit. Simultaneously, the physical adsorption surface does not rely on any chemical adhesive components, completely avoiding the risk of chemical irritation, allergic reactions, or toxic reactions to the user's facial skin caused by solvents or additives contained in adhesives. This is especially suitable for surgical users with sensitive facial skin or those with damaged skin barriers. Furthermore, the adsorption force of the physical adsorption surface is reversible, allowing the protective mask 200 to be repeatedly separated and reattached during surgery without losing its fixation performance, providing ample margin for repeated adjustments to the position of the surgical window 201.

[0053] In some embodiments, unlike the configuration of a flexible silicone sheet, the adhesive surface 203 is a self-adhesive surface.

[0054] In this embodiment of the present disclosure, the adjustable sterile oxygen-inhaling mask for minimally invasive head and face surgery further includes a wearing assistance device 700. The wearing assistance device 700 is connected to the mask body 101 and is used to maintain the wearing relationship between the mask body 101 and the user during use. Under normal circumstances, the wearing of the mask body 101 (i.e., the nasal mask 100) is stably supported by the protective mask 200 (first body part 300). However, in order to fully ensure wearing stability and prevent the influence of slight changes in the position of the nasal mask 100 on the sterile environment during surgery, an independent wearing structure is established by the wearing assistance device 700.

[0055] In one implementation, such as Figure 2 , Figure 3 As shown, the wearing assistance device includes a plurality of adhesive patches 801 disposed around the periphery of the mask body 101, the adhesive patches 801 being located on the side of the protective mask 200 closer to the user's face.

[0056] These adhesive patches 801 are arranged around the circumferential edge of the face mask body 101, that is, distributed at multiple positions in the edge area of ​​the face mask body 101 that contacts the user's facial skin. Each adhesive patch 801 is independently set on the side of the protective face mask 200 closest to the user's face (that is, the area where the inner side of the protective face mask 200 is adjacent to the face mask body 101), so that the adhesive patch 801 is spatially located between the outer wall of the face mask body 101 and the user's facial skin. In use, after the face mask body 101 is placed in the user's nose area, each adhesive patch 801 forms an independent adhesive fixing point with the facial skin around the user's nose (such as the sides of the bridge of the nose, the sides of the nostrils, the area above the upper lip, and the area below the eyebrows), pulling and fixing the edge of the face mask body 101 to the facial skin from multiple directions.

[0057] In one implementation, such as Figure 5 and Figure 6 As shown, the wearing assistance device includes a clamping seat 901, a connecting rod 902 is provided on the clamping seat 901, and a connecting part 903 for connecting the mask body 101 is provided at the end of the connecting rod 902 away from the clamping seat 901.

[0058] The clamping base 901 serves as the base fixing unit for the entire wearing assistance device 700, used to clamp and fix it to an external support structure during use. This external support structure can be the edge railing of an operating table, the headboard of an operating table, the upright of an anesthesia frame, or other stable structures located near the user's head. The connecting rod 902 serves as an intermediate force transmission component connecting the clamping base 901 and the connecting part 903. One end of the connecting rod is fixedly or adjustablely connected to the clamping base 901, and the other end extends to a spatial position near the mask body 101. The connecting part 903 is located at the end of the connecting rod 902, serving as the interface unit between the connecting rod 902 and the mask body 101, forming a mechanical connection with the mask body 101. During use, through the transmission path of the clamping base 901 fixed to the external support structure, the connecting rod 902 spanning the spatial distance, and the connecting part 903 connecting to the mask body 101, the mask body 101 obtains a suspension or cantilever support from the external independent support structure, thereby maintaining the wearing relationship between the mask body 101 and the user during use.

[0059] In summary, the adjustable sterile oxygen mask for minimally invasive head and face surgery described in this application can simultaneously meet the needs of intraoperative oxygen supply, sterile facial coverage, and surgical operating space. It eliminates the significant contradiction between the patient's oxygen needs and the sterile coverage requirements of the surgical area, a common issue in existing minimally invasive head and face surgeries. It overcomes the problems of conventional oxygen masks and surgical drapes not being effectively integrated, which affects both the patient's breathing patency and oxygen supply stability, and also interferes with the surgeon's operation; and the lack of a flexibly adjustable surgical window 201 in existing mask products, making them unsuitable for different surgical approaches.

[0060] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable sterile oxygen-inhaling mask for minimally invasive head and face surgery, characterized in that, include: A nasal mask, comprising a mask body, wherein the mask body is provided with a breathing oxygen supply connection port or several perforated ventilation structures. A protective face shield, which extends outward around the face shield body and has a flexible sheet structure. In use, the mask body covers the user's nose area and the protective mask covers the user's face. A perforated surgical window is opened on the protective mask to correspond to the user's surgical area. When it is necessary to adjust the position of the surgical window, the position of the surgical window can be adjusted by moving the surgical window based on the flexible characteristics of the mask body.

2. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 1, characterized in that, The mask body is a transparent mask body.

3. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 1, characterized in that, The protective mask includes a first body part, a second body part, and a third body part; The mask body is provided on the first body part for covering the user's lip area and forehead area when in use. The second body portion and the third body portion correspond to the left and right sides of the user's face, respectively, and the side portions of the second body portion and the third body portion are detachably and sealed to the sides of the first body portion.

4. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 3, characterized in that, The surgical window is pre-set on both sides of the second body part and the third body part along the length direction.

5. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to any one of claims 1-4, characterized in that, The protective face shield has an adhesive side facing the user.

6. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 5, characterized in that, The protective face shield is a flexible silicone sheet face shield, and the adhesive surface is a physical adsorption surface.

7. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 5, characterized in that, The adhesive surface is a self-adhesive surface.

8. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to any one of claims 1-4, characterized in that, It also includes a wearing assistance device, which is connected to the mask body and is used to maintain the wearing relationship between the mask body and the user during use.

9. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 8, characterized in that, The wearing assistance device includes a plurality of adhesive pads disposed around the periphery of the mask body, the adhesive pads being located on the side of the protective mask closer to the user's face.

10. The adjustable sterile oxygen breathing mask for minimally invasive head and face surgery according to claim 8, characterized in that, The wearing assistance device includes a clamping base, a connecting rod is provided on the clamping base, and a connecting part for connecting the mask body is provided at the end of the connecting rod away from the clamping base.

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