A breathing mask for ophthalmic surgery
By introducing a nasal fastener and a carbon dioxide collection tube into the ophthalmic surgical breathing mask, the problems of nasal fit and insufficient carbon dioxide collection were solved, improving the safety and functionality of the mask.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN EYE HOSPITAL
- Filing Date
- 2025-01-21
- Publication Date
- 2026-06-26
AI Technical Summary
Existing surgical breathing masks for ophthalmology have poor nasal fit, which affects surgical procedures and poses a risk of infection. They also have limited functionality and fail to effectively collect carbon dioxide.
A respiratory mask for ophthalmic surgery has been designed, comprising a nasal fastener and a nasal collection tube to ensure a snug fit to the nose, and to collect carbon dioxide exhaled by the patient through a carbon dioxide inlet tube, while a filter tube is provided to ensure oxygen quality.
It improved the fit between the mask and the nose, reduced the risk of infection, enhanced the safety of the surgical procedure, and enabled the effective collection and detection of carbon dioxide.
Smart Images

Figure CN224404140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical mask technology, specifically to a respiratory mask for ophthalmic surgery. Background Technology
[0002] During ophthalmic local anesthesia surgery, the patient's eyes must be disinfected, and other parts of the face (such as hair, ears, nose, and mouth) must be covered with sterile drapes to prevent pathogens and other impurities from these unsterilized areas from entering the surgical area and causing infection of the clean surgical incision.
[0003] Chinese Patent Publication No. CN220193754U discloses a respiratory mask for ophthalmic surgery, including a mask body with a protrusion fixedly connected to it. A mounting block is fixedly connected to the outside of the mask body, and the mounting block has a movable cavity. A roller is movably connected inside the movable cavity. This invention allows the adjustment rod to be pressed down along the adjustment opening, disengaging from the clamp by pressing against the abutment block. This causes the abutment plate to move down along the rectangular cavity, compressing the spring and ensuring elasticity. Simultaneously, the abutment plate does not contact the bottom of the roller. Twisting the cap then rotates the adjustment rod. The limiting strip and limiting channel work together to allow the roller to rotate, thus winding or unwinding the straps and adjusting the overall length of the straps. This adjustment allows for better fit to patients with different head sizes, improving comfort and tightness during wear.
[0004] Such surgical breathing masks for ophthalmology do not fit the patient's nose well, which can affect the operation of the eye surgery and may cause infection. At the same time, they do not have the function of collecting exhaled carbon dioxide, and their functions are relatively simple and insufficient to meet the needs of clinical use. Utility Model Content
[0005] The purpose of this invention is to provide a respiratory mask for ophthalmic surgery, which overcomes the problems of existing ophthalmic surgical respiratory masks having poor fit to the patient's nose, easily affecting the surgical operation of medical staff, and potentially posing a risk of infection. At the same time, they do not have the function of collecting exhaled carbon dioxide, and their functions are relatively simple and cannot meet the requirements of clinical use.
[0006] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:
[0007] A surgical breathing mask for ophthalmic surgery has been designed. The upper side of the mask features nasal fasteners for a better fit to the patient's nose, ensuring a secure fit and preventing interference with surgical procedures and infection. A nasal collection tube is located inside the mask to directly and effectively collect the patient's exhaled carbon dioxide. The mask is highly functional and extremely safe and reliable. The specific design is as follows:
[0008] A breathing mask for ophthalmic surgery includes a mask body and an oxygen tube connector disposed in the middle of the mask body. A nose bridge fastening part is provided on the upper side of the mask body, and a first tube connector is provided through the root of the nose bridge fastening part.
[0009] A second pipe connector is provided on the lower right side of the mask body, and a carbon dioxide collection pipe interface is provided on the second pipe connector;
[0010] A carbon dioxide inlet tube is provided between the second connector and the outer end of the first connector, and a nasal collection tube is provided at the inner end of the first connector.
[0011] Preferably, nail caps are provided at the left and right edges of the mask body, and a traction fixing strap is connected between the top caps on both sides.
[0012] Preferably, the transnasal collection tube is rotatably connected to the inner end of the first tube connector, and the transnasal collection tube extends upward along the protruding part of the bridge of the nose.
[0013] Preferably, an oxygen tube is connected to the outer end of the oxygen tube connector, and ventilation holes are provided on the left and right sides above the oxygen tube connector.
[0014] Preferably, the inner end of the oxygen tube connector is detachably connected to a filter protection tube.
[0015] Preferably, the filter protection tube is threaded to the inner end of the oxygen tube connector, and the filter protection tube is provided with a bactericidal layer and a dehumidifying layer at intervals.
[0016] Preferably, a protective cushioning pad is provided at the inner edge of the mask body.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model has a nasal fastening part on the upper side of the mask body, which can better fasten to the patient's nose, ensuring the fit of the mask body, preventing interference with surgical operations and infection, and improving its safety and reliability.
[0019] 2. The inner side of the mask body of this utility model is provided with a transnasal collection tube that can be inserted into the patient's nasal cavity, which can directly and effectively collect carbon dioxide exhaled by the patient and output it through the carbon dioxide tube, thereby improving its functionality and meeting the needs of clinical use.
[0020] 3. This utility model has a detachable filter protection tube connected to the inside of the oxygen tube connector. The sterilization layer and dehumidification layer in the filter protection tube can ensure that the patient inhales healthy and dry oxygen, and a safer protective measure is taken without hindering the patient's breathing. Attached Figure Description
[0021] Figure 1 This is a front view of the present invention;
[0022] Figure 2 This is a rear view of the present invention;
[0023] Figure 3 for Figure 2 A schematic diagram of the cross-section at point AA.
[0024] In the diagram: 1-Mask body; 11-Ventilation hole; 12-Nose bridge fastening part; 2-Oxygen tube connector; 21-Oxygen tube; 3-Traction and fixation strap; 31-Nail cap; 4-First tube connector; 5-Second tube connector; 51-Carbon dioxide collection tube interface; 6-Carbon dioxide passage tube; 7-Filter protection tube; 71-Sterilization layer; 72-Dehumidification layer; 8-Nose collection tube. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.
[0027] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0029] like Figure 1-3 As shown, this utility model provides a respiratory mask for ophthalmic surgery, including a mask body 1 and an oxygen connector 2 located in the middle of the mask body 1. The oxygen connector 2 can be connected to an oxygen cylinder to supply oxygen to the patient for breathing. A nose bridge fastening part 12 is provided on the upper side of the mask body 1, which can ensure a better fit with the patient's nose bridge and improve the fit effect. A first connector 4 is provided through the root of the nose bridge protrusion 12. A second connector 5 is provided on the lower right side of the mask body 1, and a carbon dioxide collection device is provided on the second connector 5. A carbon dioxide inlet tube 6 is provided between the outer ends of the second connector 5 and the first connector 4 and the tube interface 51. The carbon dioxide inlet tube 6 is detachable for easy inspection and maintenance. A nasal collection tube 8 is provided on the inner end of the first connector 4. By inserting the nasal collection tube 8 into the patient's nasal cavity, the uninfected carbon dioxide exhaled by the patient can be directly collected and sent out through the carbon dioxide inlet tube 6. The carbon dioxide is collected through the collection tube at the carbon dioxide collection tube interface 51, which improves the functionality of the mask during use and the accuracy of the collected carbon dioxide results.
[0030] In the above scheme, nail caps 31 are respectively provided on the left and right edges of the mask body 1, and a traction fixing strap 3 is connected between the two top caps 31.
[0031] As an optimized technical solution of this utility model, the traction fixation strap 3 is fixed to both sides of the mask body 1 by the nail cap 31, and the traction fixation strap 3 can be made of elastic material or non-elastic material, so as to fix the mask body 1 to the patient's face.
[0032] In the above scheme, the nasal collection tube 8 is rotatably connected to the inner end of the first tube connector 4, and the nasal collection tube 8 extends upward along the nasal bridge protrusion 12.
[0033] As an optimized technical solution of this utility model, the nasal collection tube 8 can be made of rigid material or soft material (which can avoid causing instrument damage and improve the comfort during insertion). It can be rotated and adjusted according to the needs of use so as to facilitate the insertion into the patient's nasal cavity for carbon dioxide collection.
[0034] In the above scheme, an oxygen pipe 21 is connected to the outer end of the oxygen pipe connector 2, and ventilation holes 11 are respectively provided on the left and right sides above the oxygen pipe connector 2.
[0035] As an optimized technical solution of this utility model, the oxygen tube 21 is connected between the mask body 1 and the oxygen tank to ensure the patient's breathing, while the vent 11 facilitates the flow of gas inside the mask body 1, which is convenient for the patient's normal breathing.
[0036] In the above scheme, the inner end of the oxygen pipe connector 2 is detachably connected to a filter protection tube 7; the filter protection tube 7 is threadedly connected to the inner end of the oxygen pipe connector 2, and the filter protection tube 7 is provided with a sterilization layer 71 and a dehumidification layer 72 at intervals.
[0037] As an optimized technical solution of this utility model, the detachable connection method of the filter protection tube 7 can be a variety of connection methods such as threaded connection, snap-fit or plug-in connection, so as to facilitate the replacement of the filter protection tube 7. The sterilization layer 71 and the dehumidification layer 72 can provide healthy and dry oxygen for the patient's breathing, ensuring the safety and reliability of their breathing. A silicone tube can also be provided at the free end of the filter protection tube 7 to prevent the filter protection tube 7 from causing mechanical damage to the patient's face.
[0038] In the above scheme, a protective buffer pad is provided at the inner edge of the mask body 1.
[0039] As an optimized technical solution of this utility model, the protective cushioning pad can ensure the comfort of the mask body 1 covering the patient's face, and at the same time ensure the fit with the patient's face.
[0040] Specific implementation examples:
[0041] When in use, the nasal sampling tube 8 can be inserted into the patient's nostril according to the needs of use, and the mask body 1 can be placed on the patient's face so that the nasal bridge fastening part 12 is aligned with the patient's nasal bridge. The mask body 1 is fixed to the patient's face by the traction fixing strap 3 so that it can be used by the patient for breathing during ophthalmic surgery, ensuring the fit between the patient and the breathing mask, preventing interference with surgical operation and infection, and improving its safety and reliability.
[0042] During patient breathing, the oxygen tube connector 2 is connected to the oxygen supply equipment via the oxygen inhalation tube 21 to provide oxygen to the patient. During breathing, the nasal sampling tube 8 can collect the carbon dioxide exhaled by the patient in a timely and effective manner. The collected carbon dioxide can be sent out of the mask body 1 through the first tube connector 4, and then transported to the second tube connector 5 through the carbon dioxide passage tube 6. The carbon dioxide collection tube connected to the carbon dioxide collection tube interface 51 on the second tube connector 5 is used for collection, so as to collect the carbon dioxide exhaled by the patient for detection and improve the functionality of the breathing mask for ophthalmic surgery.
[0043] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A breathing mask for ophthalmic surgery, comprising a mask body (1) and an oxygen tube connector (2) arranged in the middle of the mask body (1), characterized in that: The mask body (1) has a nose bridge fastening part (12) on its upper side, and a first pipe connector (4) is provided through the root of the nose bridge fastening part (12). A second pipe connector (5) is provided on the lower right side of the mask body (1), and a carbon dioxide collection pipe interface (51) is provided on the second pipe connector (5). A carbon dioxide tube (6) is provided between the outer end of the second pipe connector (5) and the outer end of the first pipe connector (4), and a nasal collection tube (8) is provided at the inner end of the first pipe connector (4).
2. A breathing mask for ophthalmic surgery according to claim 1, characterized in that: The mask body (1) has nail heads (31) on its left and right sides respectively, and a traction fixing strap (3) is connected between the two nail heads (31).
3. The breathing mask for ophthalmic surgery of claim 1, wherein: The transnasal collection tube (8) is rotatably connected to the inner end of the first tube connector (4), and the transnasal collection tube (8) extends upward along the nasal bridge fastening part (12).
4. The breathing mask for ophthalmic surgery of claim 1, wherein: The oxygen pipe connector (2) is connected to an oxygen pipe (21) on its outer end, and ventilation holes (11) are provided on the left and right sides above the oxygen pipe connector (2).
5. The breathing mask for ophthalmic surgery of claim 1, wherein: The oxygen tube connector (2) has a filter protection tube (7) that can be detachably connected to its inner end.
6. A breathing mask for ophthalmic surgery according to claim 5, characterized in that: The filter protection tube (7) is threaded to the inner end of the oxygen pipe connector (2), and the filter protection tube (7) is provided with a bactericidal layer (71) and a dehumidifying layer (72) at intervals.
7. The breathing mask for ophthalmic surgery of claim 1, wherein: A protective cushioning pad is provided on the inner edge of the mask body (1).