Breathing machine mask for intensive care unit (ICU)
By introducing an intermittent air intake mechanism and annular exhaust port into the ventilator mask for ICU critical care, the problems of oxygen waste and excessive humidity were solved, achieving oxygen conservation and improved patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AFFILIATED HOSPITAL OF NANTONG UNIV
- Filing Date
- 2025-12-30
- Publication Date
- 2026-05-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing ICU ventilator masks have excessively high oxygen content under positive pressure, leading to excessive humidity inside the mask and wasted oxygen. Furthermore, carbon dioxide and oxygen are mixed, causing patient discomfort and wasting resources.
An ICU ventilator mask was designed, which adopts an intermittent air intake mechanism and an annular exhaust port. The oxygen supply is controlled by the intermittent air intake mechanism, and carbon dioxide and water vapor are diverted by Bernoulli's principle. Combined with the breathable structure, humidity and oxygen waste are reduced.
It effectively prevents oxygen waste, reduces humidity inside the mask, improves patient comfort, avoids the mixing of oxygen and carbon dioxide, and conserves oxygen resources.
Smart Images
Figure CN122006051A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to a ventilator mask for ICU intensive care. Background Technology
[0002] A ventilator mask for ICU critical care is an auxiliary medical device used to assist ICU patients' breathing. Oxygen produced by the ventilator is humidified and then enters the mask to supply oxygen to the ICU patient, assisting their breathing and maintaining their vital signs. In existing technologies, because the ventilator continuously supplies oxygen to the mask, the inside of the mask is always under positive pressure (to facilitate oxygen supply to the patient and to facilitate the expulsion of carbon dioxide and moisture produced by the patient's breathing). This means that the oxygen content inside is high. Due to the inconsistent breathing rates of ICU patients, in order to prevent the dangers caused by hypoxia, the oxygen content inside the existing ventilator mask is too high. This leads to excessive moisture content inside the mask, which can easily cause moisture to affect the patient's face and cause various discomfort symptoms. Moreover, oxygen and carbon dioxide mixed together under positive pressure will be directly expelled, resulting in waste of oxygen resources. Furthermore, existing ventilator masks do not have the function of limiting oxygen flow, resulting in excessive humidity inside the mask and waste of oxygen. Therefore, this application aims to design a ventilator mask for ICU critical care to solve the above problems. Summary of the Invention
[0003] This application proposes a ventilator mask for ICU critical care, which has the advantages of saving oxygen resources and reducing humidity inside the mask, thereby solving the problems of oxygen waste and high humidity caused by the positive pressure environment inside the mask in the prior art.
[0004] To achieve the above objectives, this application adopts the following technical solution: an ICU ventilator mask, comprising a mask body, wherein the outer side of the mask body is provided with an exhaust port two, and further comprising: An air intake pipe is installed through the front of the mask body. One end of the air intake pipe is fixedly connected to a connecting pipe. A collection cylinder is fixedly connected to the front end of the inner wall of the mask body, and multiple sets of exhaust holes are opened between the collection cylinder and the air intake pipe. An intermittent air intake mechanism includes a bracket 1 and a bracket 2 fixedly connected to the inner wall of an air intake pipe. An air guide cylinder is rotatably installed between the bracket 1 and the bracket 2. Multiple sets of fan blades are fixedly connected to one side of the outer surface of the air guide cylinder. An air inlet and an air outlet are respectively opened at both ends of the middle part of the air guide cylinder. A through-hole is opened at one end of the bracket 2, and the bracket 2 coincides with the through-hole.
[0005] Preferably, a connecting frame is fixedly connected to the rear side of the mask body, a sealing strip is fixedly connected to the surface of the connecting frame, a plurality of ventilation holes are formed on the surface of the sealing strip, and a groove communicating with the ventilation holes is formed on the side of the sealing strip.
[0006] Preferably, the connecting frame and the sealing strip are both made of rubber blocks and are respectively fixed to the mask body and the sealing strip by adhesive.
[0007] Preferably, the exhaust port is arranged in a ring on the outside of the intake pipe and communicates with the inside of the collection cylinder, the inside of the collection cylinder being funnel-shaped.
[0008] Preferably, the first bracket is located on the front side of the inner wall of the air intake pipe, the second bracket is located on the rear side of the inner wall of the air intake pipe, two sets of air inlets are provided on the front of the air inlet, and the fan blades are located between the first bracket and the air intake.
[0009] Preferably, sealing ring 2 and sealing ring 1 are fixedly connected to the front and rear ends of the middle part of the air guide cylinder, respectively. Sealing ring 1 is squeezed by bracket 2, and another set of openings overlapping the air outlet is opened on the surface of sealing ring 1.
[0010] Preferably, a spiral blade is fixedly connected to the inner cavity of the air guide tube, and the spiral blade is made of lightweight plastic.
[0011] Preferably, when the mask body is worn, the rear ends of both the air inlet tube and the collection tube are kept at a distance from the user's nose.
[0012] Preferably, the outer side of the connecting frame is turned outward toward the front end, and the outwardly turned portion of the connecting frame has a rounded transition.
[0013] The beneficial effects of this invention are as follows: 1. This device has been redesigned with an intermittent air intake mechanism installed inside the air intake tube. This mechanism provides intermittent oxygen to the inner cavity of the mask body, allowing the patient to consume the remaining oxygen through intermittent cycles, thus reducing oxygen waste. To achieve this, the device uses brackets one and two installed on the inner wall of the air intake tube, allowing the air delivery cylinder to rotate and be mounted on the inner wall of the air intake tube. Oxygen channels are provided through the air inlet and outlet at both ends of the middle of the air delivery cylinder. The positive pressure oxygen from the ventilator drives the fan blades, causing the air delivery cylinder to rotate against the resistance of sealing rings two and one. This moves the outlet to a position where it intersects with the through-hole. At this point, the outlet is blocked, and the oxygen entering the air delivery cylinder accumulates there, gradually increasing the air pressure. When the air delivery cylinder rotates back to its original position, the outlet re-aligns with the through-hole, and the compressed oxygen enters the inner cavity of the mask body through the outlet and through-hole, providing intermittent oxygen to the patient and effectively preventing oxygen waste.
[0014] 2. Then, by opening multiple sets of annularly distributed exhaust holes on the front of the mask body, the carbon dioxide and water vapor produced by the patient's breathing can be discharged through the exhaust holes under the guidance of the collection tube, reducing the retention time of carbon dioxide and water vapor in the inner cavity of the mask body. The collection tube of this device is set in a trumpet shape at the end facing the patient. Through the enlarged opening design, the carbon dioxide and water vapor produced by the patient's breathing are guided and absorbed by the rear opening of the collection tube. A narrow annular space is formed between the collection tube and the air inlet tube, and negative pressure is generated through the "Bernoulli principle" to effectively divert carbon dioxide and water vapor, thereby reducing the water vapor in the inner cavity of the mask body.
[0015] 3. Finally, this device also adds a connecting frame and sealing strip to the part of the mask body that contacts the patient's face, and designs a breathable structure to ensure that the part of the patient's face that is squeezed by the sealing strip can also breathe. The breathable structure includes breathable holes opened on the surface of the sealing strip, and the openings on its side ensure communication with the breathable holes, so that the part of the sealing strip that contacts the patient's face can breathe with the outside through the breathable holes, thereby avoiding moisture residue and reducing skin discomfort caused by poor ventilation on the patient's face. Attached Figure Description
[0016] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.
[0017] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram showing the overall structure of the present invention separated; Figure 2 This is a frontal perspective view of the overall structure of the present invention; Figure 3 This is a three-dimensional rear view of the overall structure of the present invention; Figure 4 This is a side sectional view of the overall structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B; Figure 7 This is a top sectional view of the overall structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the separation of the intermittent air intake mechanism of the present invention.
[0018] The components are as follows: 1. Mask body; 2. Collection cylinder; 3. Air inlet pipe; 4. Intermittent air inlet mechanism; 40. Support 1; 41. Support 2; 42. Air guide cylinder; 43. Air inlet; 44. Air outlet; 45. Spiral blade; 46. Fan blade; 47. Air vent; 48. Through port; 49. Sealing ring 1; 410. Sealing ring 2; 5. Connecting pipe; 6. Exhaust hole 1; 7. Exhaust hole 2; 8. Connecting frame; 9. Sealing strip; 10. Vent hole. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0020] Please see Figures 1-9 This embodiment discloses a ventilator mask for ICU critical care, including a mask body 1, wherein an exhaust port 7 is provided on the outer side of the mask body 1, and further includes: An air intake pipe 3 is installed through the front of the mask body 1. One end of the air intake pipe 3 is fixedly connected to a connecting pipe 5. A collection cylinder 2 is fixedly connected to the front end of the inner wall of the mask body 1, and multiple sets of exhaust holes 6 are opened between the collection cylinder 2 and the air intake pipe 3. The intermittent air intake mechanism 4 includes a first bracket 40 and a second bracket 41 fixedly connected to the inner wall of the air intake pipe 3. An air guide cylinder 42 is rotatably installed between the first bracket 40 and the second bracket 41. Multiple sets of fan blades 46 are fixedly connected to one side of the outer surface of the air guide cylinder 42. An air inlet 43 and an air outlet 44 are respectively opened at both ends of the middle part of the air guide cylinder 42. A through-hole 48 is opened at one end of the second bracket 41, and the second bracket 41 coincides with the through-hole 48. This device has been redesigned, with an intermittent air intake mechanism 4 added inside the inlet tube 3. This mechanism provides intermittent oxygen to the inner cavity of the mask body 1, allowing the patient to consume any remaining oxygen through intermittent cycles, thus reducing oxygen waste. To achieve this, the device uses a bracket 40 and a bracket 41 installed on the inner wall of the inlet tube 3, allowing the air delivery cylinder 42 to be rotatably mounted on the inner wall of the inlet tube 3. Oxygen is provided through the air inlet 43 and air outlet 44 located at both ends of the middle of the air delivery cylinder 42, utilizing positive pressure oxygen from the ventilator. Air drives the fan blade 46, which in turn drives the air guide cylinder 42 to rotate against the resistance of the sealing ring 410 and the sealing ring 49. This causes the air outlet 44 to move to a position where it intersects with the through-hole 48. At this time, the air outlet 44 is blocked, and the oxygen that has entered the air guide cylinder 42 accumulates therein, and the air pressure gradually increases. When the air guide cylinder 42 rotates back to its original position, the air outlet 44 re-aligns with the through-hole 48. The compressed oxygen enters the inner cavity of the mask body 1 along the air outlet 44 and the through-hole 48, and provides oxygen to the patient intermittently, which can effectively prevent oxygen waste.
[0021] Then, by opening multiple sets of annularly distributed exhaust holes 6 on the front of the mask body 1, the carbon dioxide and water vapor produced by the patient's breathing can be discharged through the exhaust holes 6 under the guidance of the collection tube 2, reducing the retention time of carbon dioxide and water vapor in the inner cavity of the mask body 1. The collection tube 2 of this device is set in a trumpet shape at the end facing the patient. Through the enlarged opening design, the carbon dioxide and water vapor produced by the patient's breathing are guided and absorbed by the rear opening of the collection tube 2. A narrow annular space is formed between the collection tube 2 and the air inlet tube 3, and negative pressure is generated through the "Bernoulli principle" to effectively divert carbon dioxide and water vapor, thereby reducing the water vapor in the inner cavity of the mask body 1.
[0022] The mask body 1 is fixedly connected to a connecting frame 8 at the rear. A sealing strip 9 is fixedly connected to the surface of the connecting frame 8. The surface of the sealing strip 9 is provided with multiple sets of ventilation holes 10. The side of the sealing strip 9 is provided with a groove that communicates with the ventilation holes 10. This device adds a connecting frame 8 and a sealing strip 9 to the part of the mask body 1 that contacts the patient's face, and designs a breathable structure to ensure that the part of the patient's face that is compressed by the sealing strip 9 can also breathe. The breathable structure includes a breathable hole 10 opened on the surface of the sealing strip 9, and the opening on its side ensures that it is connected to the breathable hole 10, so that the part of the sealing strip 9 that contacts the patient's face can breathe to the outside through the breathable hole 10, thereby avoiding moisture residue and reducing skin discomfort caused by poor ventilation on the patient's face.
[0023] The connecting frame 8 and the sealing strip 9 are both made of rubber blocks and are fixed to the mask body 1 and the sealing strip 9 respectively by adhesive. The sealing strip 9 is in direct contact with the patient's face. It creates a seal by applying pressure and deformation. The surface of the sealing strip 9 has ventilation holes 10, and the openings on its sides ensure communication with the ventilation holes 10. This allows the part of the sealing strip 9 that is in contact with the patient's face to breathe through the ventilation holes 10, reducing skin discomfort caused by lack of ventilation on the patient's face.
[0024] The exhaust port 6 is arranged in a ring on the outside of the intake pipe 3 and communicates with the inside of the collection cylinder 2. The inside of the collection cylinder 2 is funnel-shaped. like Figure 4 As shown, the rear end of the funnel-shaped collection tube 2 can absorb carbon dioxide and moisture produced by the patient's breathing. Through its enlarged opening design, the carbon dioxide and water vapor produced by the patient's breathing are guided and absorbed by the rear opening of the collection tube 2. A narrow annular space is formed between the collection tube 2 and the air inlet tube 3, and negative pressure is generated through the "Bernoulli principle" to effectively divert carbon dioxide and water vapor, thereby reducing the water vapor in the inner cavity of the mask body 1.
[0025] Among them, the first bracket 40 is located on the front side of the inner wall of the air intake pipe 3, the second bracket 41 is located on the rear side of the inner wall of the air intake pipe 3, two sets of air inlets 47 are opened on the front of the air inlet 47, and the fan blade 46 is located between the first bracket 40 and the air inlet 43. like Figure 5 As shown, when oxygen enters the interior of the intake pipe 3 through the connecting pipe 5, the air vent 47 on the surface of the bracket 40 can reduce the obstruction to oxygen.
[0026] Among them, the front and rear ends of the middle part of the air guide cylinder 42 are respectively fixedly connected to the sealing ring 2 410 and the sealing ring 1 49. The sealing ring 1 49 is squeezed by the bracket 2 41, and the surface of the sealing ring 1 49 is provided with another set of openings 48 that overlap with the air outlet 44. like Figure 5 As shown, sealing ring 410 and sealing ring 49 seal the two ends of the middle part of the air guide cylinder 42 and the inner wall of the air inlet pipe 3 on the one hand, and provide frictional resistance for the rotation of the air guide cylinder 42 on the other hand. Since the air guide cylinder 42 is designed to maintain the air outlet 44 and the through port 48 for a relatively long period of staggered sealing, the fan blade 46 is driven by oxygen and overcomes the frictional force from sealing ring 410 and sealing ring 49, thereby helping to improve the oxygen consumption efficiency inside the mask body 1.
[0027] The inner cavity of the air guide cylinder 42 is fixedly connected with a spiral blade 45, which is made of lightweight plastic. The spiral blade 45 can extend the movement path of oxygen in the inner cavity of the air guide tube 42. When the air outlet 44 is blocked, the oxygen is isolated in the spiral space by the spiral blade 45, which helps to store oxygen. When the air outlet 44 coincides with the through port 48, the spiral blade 45, which is driven to rotate, can also generate axial thrust for the oxygen, assisting it to enter the mask body 1.
[0028] When the mask body 1 is worn, the rear ends of the air inlet pipe 3 and the collection tube 2 are kept at a distance from the user's nose. Both the rear ends of the air inlet tube 3 and the collection tube 2 have a certain gap with the patient's nose, so as to prevent oxygen from the inside of the air inlet tube 3 from directly hitting the vicinity of the patient's nose.
[0029] Wherein, the outer side of the connecting frame 8 is turned outward toward the front end, and the outwardly turned part of the outer side of the connecting frame 8 has a rounded transition; like Figure 6 As shown, the outward-curving connecting frame 8, with its rounded transition design, can improve the patient's comfort when picking it up.
[0030] Working principle: When this device is in operation: First, put on the mask body 1, so that the sealing strip 9 comes into direct contact with and is pressed against the patient's face to form a seal. At this time, the back side of the sealing strip 9 is blocked and comes into direct contact with the patient's face, such as... Figure 6 As shown, the inner cavity of the vent 10 is connected by the outer groove, thereby ensuring that the patient's skin can breathe and preventing skin discomfort caused by squeezing and breathing. Then, when the sealing strip 9 comes into contact with the patient, the inner cavity of the mask body 1 forms a sealed space, and humidified oxygen is introduced through the connecting pipe 5, such as... Figure 5 As shown, after oxygen enters the inner cavity of the inlet pipe 3, it acts on the fan blade 46. The rotational torque generated by the fan blade 46 begins to overcome the resistance generated by the sealing ring 410 and the outlet 44 on the air delivery cylinder 42. During this process, the air delivery cylinder 42 remains stationary, and oxygen enters the inner cavity of the air delivery cylinder 42 through the inlet 43. At this time, the outlet 44 coincides with the through-hole 48, and the oxygen enters the inner cavity of the mask body 1 through the through-hole 48 and is directly absorbed by the patient. Figure 4 As shown, part of the carbon dioxide and water produced by the patient's breathing are guided by the flared mouth of the collecting cylinder 2 into the annular space inside the collecting cylinder 2 and the air inlet pipe 3, and are discharged directly along the exhaust port 6. The other part is discharged along the exhaust port 7 on the surface of the mask body 1. Finally, as Figure 5As shown, when the torque generated by the oxygen thrust on the fan blade 46 drives the air delivery cylinder 42 to rotate is greater than the resistance generated by the sealing ring 410 and the air outlet 44 on the air delivery cylinder 42, the air delivery cylinder 42 starts to rotate as a whole, causing the air outlet 44 to move to a position where it intersects with the through-hole 48. At this time, the air outlet 44 is blocked, and the oxygen that has entered the air delivery cylinder 42 accumulates therein, and the air pressure gradually increases. When the air delivery cylinder 42 rotates back to its original position, the air outlet 44 re-aligns with the through-hole 48, and the compressed oxygen enters the inner cavity of the mask body 1 along the air outlet 44 and the through-hole 48, providing oxygen to the patient intermittently, which can effectively prevent oxygen waste.
[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A ventilator mask for ICU critical care, comprising a mask body (1), wherein an exhaust port (7) is provided on the outer side of the mask body (1), characterized in that, Also includes: An air intake pipe (3) is installed through the front of the mask body (1). One end of the air intake pipe (3) is fixedly connected to a connecting pipe (5). A collection cylinder (2) is fixedly connected to the front end of the inner wall of the mask body (1), and multiple sets of exhaust holes (6) are opened between the collection cylinder (2) and the air intake pipe (3). The intermittent air intake mechanism (4) includes a bracket 1 (40) and a bracket 2 (41) fixedly connected to the inner wall of the air intake pipe (3). An air guide cylinder (42) is rotatably installed between the bracket 1 (40) and the bracket 2 (41). Multiple sets of fan blades (46) are fixedly connected to one side of the outer surface of the air guide cylinder (42). An air inlet (43) and an air outlet (44) are respectively opened at both ends of the middle part of the air guide cylinder (42). A through-hole (48) is opened at one end of the bracket 2 (41). The bracket 2 (41) coincides with the through-hole (48).
2. The ventilator mask for ICU critical care according to claim 1, characterized in that, A connecting frame (8) is fixedly connected to the rear side of the mask body (1), and a sealing strip (9) is fixedly connected to the surface of the connecting frame (8). Multiple sets of ventilation holes (10) are opened on the surface of the sealing strip (9), and a groove communicating with the ventilation holes (10) is opened on the side of the sealing strip (9).
3. The ventilator mask for ICU critical care according to claim 2, characterized in that, The connecting frame (8) and the sealing strip (9) are both made of rubber blocks and are fixed to the mask body (1) and the sealing strip (9) respectively by adhesive.
4. The ventilator mask for ICU critical care according to claim 1, characterized in that, The exhaust port 1 (6) is distributed in a ring on the outside of the intake pipe (3) and communicates with the inside of the collection cylinder (2). The inside of the collection cylinder (2) is trumpet-shaped.
5. The ICU ventilator mask according to claim 4, characterized in that, The first bracket (40) is located on the front side of the inner wall of the air inlet pipe (3), the second bracket (41) is located on the rear side of the inner wall of the air inlet pipe (3), the air outlet (47) has two sets of air outlets (47) on the front, and the fan blade (46) is located between the first bracket (40) and the air inlet (43).
6. The ICU ventilator mask according to claim 5, characterized in that, The front and rear ends of the middle part of the air guide tube (42) are respectively fixedly connected to sealing ring two (410) and sealing ring one (49). The sealing ring one (49) is squeezed by bracket two (41), and the surface of the sealing ring one (49) is provided with another set of openings (48) that overlap with the air outlet (44).
7. The ICU ventilator mask according to claim 6, characterized in that, The inner cavity of the air guide tube (42) is fixedly connected with a spiral blade (45), which is made of lightweight plastic.
8. The ICU ventilator mask according to claim 7, characterized in that, When the mask body (1) is worn, the rear ends of the air inlet tube (3) and the collection tube (2) are kept at a distance from the user's nose.
9. The ventilator mask for ICU critical care according to claim 2, characterized in that, The outer side of the connecting frame (8) is turned outward toward the front end, and the outward-turned part of the connecting frame (8) has a rounded transition.