Air flow detection equipment for medical breathing machine

Abstract

The invention provides air flow detection equipment for a medical breathing machine, and belongs to the technical field of medical equipment. Comprising an airflow detection mechanism, the airflow detection mechanism comprises a machine body and a machine head, the machine body is sleeved with a shell, and a connecting pipeline is connected between the shell and the machine head. The protection assembly is arranged, so that the pipeline can be doubly limited, the sealing effect of connection between the pipeline and the machine head can be improved, the pipeline is prevented from being automatically separated, leakage caused by the poor sealing effect is avoided, the machine head can be protected in an anti-falling mode, the pipeline in a machine head insertion hole can be limited, stress of a port of a three-way pipe can be reduced, and the machine head can be hung; meanwhile, water vapor and secretions can be blocked and collected, so that the influence of the water vapor and the secretions on the sensing and measurement of the sensor on airflow is avoided, the airflow flowing is further prevented from being blocked due to the fact that the secretions and the water vapor block holes of the sensor, and the situation that the flow value detected by the detection device is relatively low is avoided; the normal work of the breathing machine and the ventilation effect of the patient are further influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an air flow detection device for a medical ventilator. Background Art

[0002] The air flow detection device used in medical ventilators detects the flow of oxygen in the ventilator. However, during use, the head of the air flow detection device is usually installed between pipelines. During use, the patient's oral and nasal secretions and hot air generated by breathing enter the pipeline, and further adhere to the vicinity of the flow sensor, affecting the sensor's perception and measurement of the airflow. For example, when the secretions block the pipeline or the sensor pores, the airflow will be blocked, causing the flow value detected by the detection device to be low, affecting the normal operation of the ventilator and the patient's ventilation effect. At the same time, when the pipeline is connected to the head, if there is a problem with the sealing effect, the leakage detection data will be inaccurate, and the pipe The wire and the handpiece are generally connected by plugging or screwing. During use, if the screw connection is used, the pipe and the handpiece are easily detached due to the small number of screw connections. When plugged in, if pulling occurs, it is easy for the pipe to fall off. In addition, if the handpiece collides or falls to the ground during use, it will cause damage to the handpiece and internal components to vibrate. In addition, in most cases, the handpiece is in a suspended state, which will cause the handpiece and the three-way pipe port to be under stress. Being in this state for a long time will accelerate the damage of the three-way pipe port. Therefore, the present application provides a medical ventilator air flow detection device to meet the needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an air flow detection device for a medical ventilator to solve the problem that during the use of the existing air flow detection device, the head of the air flow detection device is usually installed between pipelines. During use, the patient's oral and nasal secretions and the hot air generated by breathing enter the pipeline, and further adhere to the vicinity of the flow sensor, affecting the sensor's perception and measurement of the airflow. For example, when the secretions block the pipeline or the sensor pores, the airflow will be blocked, resulting in a low flow value detected by the detection device, affecting the normal operation of the ventilator and the patient's ventilation effect. At the same time, when the pipeline and the head are connected, such as the sealing effect If there is a problem, the leakage detection data will be inaccurate. In addition, the pipeline and the machine head are generally connected by plug-in or screw-in. During use, if screw-in is used, the pipeline and the machine head are easy to separate due to the small number of screw-in circles. When plugging in, if pulling occurs, it is easy to fall off. In addition, if the machine head collides or falls to the ground during use, it will cause damage to the machine head and internal components to vibrate. In addition, in most cases, the machine head is in a suspended state, which will cause the machine head and the three-way pipe port to be under stress. Being in this state for a long time will accelerate the damage of the three-way pipe port.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: A gas flow detection device for a medical ventilator comprises an air flow detection mechanism, wherein the air flow detection mechanism comprises a body and a head, wherein the body is provided with a shell, and a connecting pipeline is connected between the shell and the head; a protective component is used to protect the head and the pipeline from falling off, and the protective component is connected to the head; the protective component comprises a pair of connected pipeline fixing components, wherein the pair of pipeline fixing components are respectively installed at two ends of the head, the pair of pipeline fixing components are symmetrically arranged, and an outer protective component is provided between the pair of pipeline fixing components, wherein the pipeline fixing component located at the air outlet end of the head is connected to an anti-blocking component.

[0005] Optionally, the pipeline fixing component includes a fixing ring fixedly connected to the outer end of the head, the outer end of the fixing ring is fixedly connected to an outer sleeve, an installation groove is opened in the outer sleeve, a plurality of supplementary sheets distributed in a circular array are fixedly connected in the installation groove, and the supplementary sheets are fixedly connected to the fixing ring.

[0006] Optionally, the pipeline fixing component further comprises a plurality of receiving grooves which are opened on the inner wall of the machine head and distributed in a circular array, and a clamping card which is fixedly connected to the fixing ring is installed in the receiving groove.

[0007] Optionally, the clamping card is composed of a first connecting section, a clamping section and a second connecting section which are fixedly connected in sequence, wherein the first connecting section is fixedly connected to the fixing ring, and the connection between the clamping section and the first connecting section and the connection between the clamping section and the second connecting section are both S-shaped, and the clamping card is made of elastic material.

[0008] Optionally, the supplementary sheet is arranged in a wave shape, the supplementary sheet is made of elastic material, a plurality of the supplementary sheets form a cavity, and the port diameter of the cavity at one end of the fixing ring decreases successively toward the port at the other end.

[0009] Optionally, the outer protection component includes a pair of sleeves, the pair of sleeves are respectively fixedly sleeved on both ends of the machine head, a pair of U-shaped anti-collision plates are fixedly connected between the pair of sleeves, and the pair of U-shaped anti-collision plates are respectively located on both sides of the machine head, one of the U-shaped anti-collision plates is fixedly connected to a first anti-collision plate and a second anti-collision plate, and the other U-shaped anti-collision plate is rotatably connected to a hook on the outer side wall, a universal ball is installed on the sleeve located on the air intake end of the machine head, the ball sleeve of the universal ball is fixedly connected to the sleeve, and a hanging rod is fixedly connected to the ball head of the universal ball, a pair of waist-shaped holes are opened on the U-shaped anti-collision plate, a first positioning plate and a second positioning plate are fixedly connected in one of the waist-shaped holes, a pair of first sockets are opened on the first positioning plate, and a second socket is opened on the second positioning plate, the first socket and the second socket both correspond to the socket of the machine head, and rubber sleeves are installed in the first socket and the second socket.

[0010] Optionally, the U-shaped anti-collision plate is composed of a third connecting segment, an anti-collision segment and a fourth connecting segment which are fixedly connected in sequence, wherein the third connecting segment and the fourth connecting segment are respectively fixedly connected to a pair of the sleeves, and the connection between the anti-collision segment and the third connecting segment and the connection between the anti-collision segment and the fourth connecting segment are both S-shaped, and the U-shaped anti-collision plate is made of elastic material.

[0011] Optionally, the first anti-collision sheet and the second anti-collision sheet are both arranged in a Y shape, and a pair of process holes are opened on the first anti-collision sheet and the second anti-collision sheet. A pair of C-shaped clamping plates are fixedly connected to one end of the first anti-collision sheet, and a C-shaped rubber sleeve is fixedly connected inside the C-shaped clamping plate, and the C-shaped rubber sleeve corresponds to the socket on the side wall of the machine head. The first anti-collision sheet and the second anti-collision sheet are both made of elastic material, and the hanging rod is arranged in an L shape.

[0012] Optionally, the anti-blocking component includes a mounting bracket arranged in the air outlet end of the machine head, the mounting bracket is fixedly connected to the second connecting section, and a first baffle, a second baffle and a third baffle are fixedly sleeved in sequence on a side wall of the mounting bracket close to the fixed ring, a first protective plate fixedly sleeved on the mounting bracket is provided on the side of the first baffle away from the second baffle, a second protective plate fixedly sleeved on the mounting bracket is provided between the first baffle and the second baffle, a third protective plate fixedly sleeved on the mounting bracket is provided between the second baffle and the third baffle, a first ring plate is fixedly connected to the inner wall of the third baffle, and a second ring plate is fixedly connected to the open end of the third baffle.

[0013] Optionally, the mounting frame is arranged in a bowl shape, the bottom end of the mounting frame is arranged in an inner convex and outer concave shape, the first baffle plate, the second baffle plate and the third baffle plate are all arranged in a trumpet shape, the diameters of the ports at one end where the first baffle plate, the second baffle plate and the third baffle plate are fixed to the mounting frame increase successively to the diameters of the ports at the other end, the first protective plate, the second protective plate and the third protective plate are all arranged in a curved shape, the diameters of the ports at one end where the first protective plate, the second protective plate and the third protective plate are fixed to the mounting frame are larger than the diameters of the ports at the other end, and the inner sides of the first protective plate, the second protective plate and the third protective plate are provided with a plurality of openings at the The air outlet hole on the mounting frame, the bottom of the mounting frame is located in the third baffle plate, the first ring plate and the second ring plate are arranged in a ring shape, the inner side wall of the second ring plate is arranged in an inclined shape, and the diameter of the end port fixed to the third baffle plate is larger than the diameter of the other end port, the second ring plate is arranged in the third baffle plate, a first air outlet cavity is formed between the first protective plate and the first baffle plate, a second air outlet cavity is formed between the second protective plate and the second baffle plate, and a third air outlet cavity is formed between the third protective plate and the third baffle plate, the inner diameter of the first baffle plate is larger than the inner diameter of the second baffle plate, and the inner diameter of the second baffle plate is larger than the inner diameter of the third baffle plate.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting the pipeline fixing component, the pipeline can be doubly limited, and the sealing effect of the connection between the pipeline and the machine head can be improved to prevent the pipeline from detaching by itself, and also to avoid leakage between the pipeline and the machine head due to poor sealing effect.

[0015] By providing an external protective component, the machine head can be protected from falling, the pipeline in the machine head socket can be limited, the force on the three-way pipe port can be reduced, and the machine head can be suspended. This not only avoids damage to the machine head due to collision or falling, but also prevents the wire pipe in the machine head socket from tilting or falling off due to collision.

[0016] By providing an anti-blocking component, water vapor and secretions formed by hot air can be blocked and collected, preventing them from coming into contact with the flow sensor, thereby preventing water vapor and secretions formed by hot air from adhering to the vicinity of the flow sensor, further preventing them from affecting the sensor's perception and measurement of the airflow, and further preventing secretions and water vapor from clogging the sensor pores and obstructing the airflow, thereby preventing the flow value detected by the detection device from being too low, thereby affecting the normal operation of the ventilator and the patient's ventilation effect.

[0017] In summary, the present invention can double-limit the pipeline by setting a protective component, and at the same time improve the sealing effect of the connection between the pipeline and the handpiece, avoid the pipeline from detaching by itself, and also avoid leakage between the pipeline and the handpiece due to poor sealing effect. It can also protect the handpiece from falling, limit the pipeline in the handpiece jack, reduce the force on the three-way pipe port, and suspend the handpiece, which not only avoids the damage of the handpiece due to collision or falling, but also avoids the tilting or falling of the wire tube in the handpiece jack due to collision, and at the same time blocks and collects the water vapor and secretions formed by the hot air, so that they cannot contact the flow sensor, avoids the water vapor and secretions formed by the hot air from adhering to the vicinity of the flow sensor, further avoids the influence of the sensor on the perception and measurement of the airflow, and further avoids the secretions and water vapor blocking the sensor pores to hinder the airflow, thereby avoiding the low flow value detected by the detection device, thereby affecting the normal operation of the ventilator and the ventilation effect of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the gas flow detection equipment for medical ventilators; Figure 2 A three-dimensional enlarged structural diagram of the nose and protective components; Figure 3 for Figure 2 A schematic diagram of a partially cutaway three-dimensional structure; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the three-dimensional enlarged structure of the partial assembly of the anti-blocking components and pipeline fixing components; Figure 6 for Figure 5 Schematic diagram of the stereoscopic structure from the second viewing angle; Figure 7 for Figure 6 Schematic diagram of the cutaway three-dimensional structure.

[0020] Reference numerals: 10. Airflow detection mechanism; 101. Machine body; 102. Shell; 103. Connecting pipeline; 104. Machine head; 20. Protective assembly; 210. Pipeline fixing component; 211. Receiving groove; 212. Clamping card; 213. Supplementary sheet; 214. Jacket; 215. Fixing ring; 220. Outer protection component; 221. Sleeve; 222. U-shaped anti-collision plate; 223. First anti-collision plate; 224. The second anti-collision plate; 225, the hook; 226, the universal ball; 227, the hanging rod; 228, the first positioning plate; 229, the second positioning plate; 230, the anti-blocking component; 231, the mounting frame; 232, the first baffle plate; 233, the second baffle plate; 234, the third baffle plate; 235, the first protective plate; 236, the second protective plate; 237, the third protective plate; 238, the first ring plate; 239, the second ring plate.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0022] The following is a detailed description of a medical ventilator air flow detection device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0023] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0024] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0025] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0026] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0027] like Figures 1 to 7 As shown, an embodiment of the present invention provides an air flow detection device for a medical ventilator, including an air flow detection mechanism 10, the air flow detection mechanism 10 includes a body 101 and a head 104, the body 101 is provided with a shell 102, and a connecting pipeline 103 is connected between the shell 102 and the head 104; a protective component 20 is used to protect the head 104 and the pipeline from falling off, and the protective component 20 is connected to the head 104; the protective component 20 includes a pair of connected pipeline fixing components 210, the pair of pipeline fixing components 210 are respectively installed at both ends of the head 104, the pair of pipeline fixing components 210 are symmetrically arranged, and an outer protective component 220 is provided between the pair of pipeline fixing components 210, wherein the pipeline fixing component 210 located at the air outlet end of the head 104 is connected to an anti-blocking component 230.

[0028] like Figures 3 to 7As shown, the pipeline fixing component 210 includes a fixing ring 215 fixedly connected to the outer end of the machine head 104, the outer end of the fixing ring 215 is fixedly connected to a jacket 214, a mounting groove is provided in the jacket 214, a plurality of supplementary sheets 213 distributed in a circumferential array are fixedly connected in the mounting groove, the supplementary sheets 213 are fixedly connected to the fixing ring 215, the supplementary sheets 213 are arranged in a wave shape, the supplementary sheets 213 are made of elastic material, in order to further improve the clamping force of the jacket 214, a plurality of supplementary sheets 213 form a cavity, the jacket 214 is made of rubber material, The port diameter of the cavity at one end of the fixing ring 215 decreases gradually toward the other end port. By setting the supplementary sheet 213, the outer sleeve 214 and the fixing ring 215, when the pipeline is used, the outer sleeve 214 will expand, and then the supplementary sheet 213 will be deformed. When the pipeline stops moving, the rebound of the supplementary sheet 213 will make the outer sleeve 214 close to the pipeline, so that the pipeline can be tightened and the sealing effect between the pipeline and the outer sleeve 214 is strengthened, so that the pipeline can be limited for the first time to prevent the pipeline from detaching by itself.

[0029] The pipeline fixing component 210 also includes a plurality of receiving grooves 211 which are opened on the inner wall of the machine head 104 and distributed in a circular array. A clamping card 212 which is fixedly connected to the fixing ring 215 is installed in the receiving groove 211. The clamping card 212 is composed of a first connecting section, a clamping section and a second connecting section which are fixedly connected in sequence, wherein the first connecting section is fixedly connected to the fixing ring 215, and the connection between the clamping section and the first connecting section and the connection between the clamping section and the second connecting section are both S-shaped. The clamping card 212 is made of elastic material.

[0030] By setting the clamping card 212, during use, when the pipeline enters the ports at both ends of the head 104, it will contact the clamping card 212, and then the clamping card 212 will move toward the receiving groove 211. In the process, the connection between the clamping section and the first connecting section and the connection between the clamping section and the second connecting section will be deformed. When the pipeline stops moving, the clamping card 212 rebounds at the same time under the action of the rebound of the above-mentioned two connections, which will make the clamping section and the pipeline close to each other, further strengthen the limitation of the pipeline, and further prevent the pipeline from detaching by itself.

[0031] like Figures 2 to 4As shown, the outer protection component 220 includes a pair of sleeves 221, and the pair of sleeves 221 are respectively fixedly sleeved on the two ends of the machine head 104, and a pair of U-shaped anti-collision plates 222 are fixedly connected between the pair of sleeves 221. The pair of U-shaped anti-collision plates 222 are respectively located on both sides of the machine head 104, and a first anti-collision plate 223 and a second anti-collision plate 224 are fixedly connected to one of the U-shaped anti-collision plates 222. The U-shaped anti-collision plate 222, the first anti-collision plate 223 and the second anti-collision plate 224 are arranged to protect the machine head 104 from falling or collision and causing damage. A hook 225 is rotatably connected to the outer wall of the other U-shaped anti-collision plate 222. In order to facilitate the suspension of the machine head 104, a universal ball 226 is installed on the sleeve 221 located on the air intake end of the machine head 104, and the ball sleeve of the universal ball 226 is fixedly connected to the sleeve 221, and the ball head of the universal ball 226 is fixedly connected to a hanging rod 22 7. The hanging rod 227 is arranged in an L shape. The cooperation of the universal ball 226 and the hanging rod 227 is to facilitate fixing it and the three-way pipe inserted into the air intake end of the machine head 104. It can be hooked at the fork of the three-way pipe during use, which can reduce the force on the three-way pipe port. A pair of waist-shaped holes are provided on the U-shaped anti-collision plate 222. In order to lighten the material and save its production cost, a first positioning plate 228 and a second positioning plate 229 are fixedly connected in one of the waist-shaped holes. The first positioning plate 228 is provided with a pair of first plug holes, and the second positioning plate 229 is provided with a second plug hole. The first plug hole and the second plug hole both correspond to the plug hole of the machine head 104. Rubber sleeves are installed in the first plug hole and the second plug hole. The first positioning plate 228 and the second positioning plate 229 cooperate with the first plug hole, the second plug hole and the rubber sleeve to facilitate clamping the pipeline inserted into the plug hole of the machine head 104 to avoid it from tilting due to collision and preventing it from falling off during use.

[0032] The U-shaped anti-collision plate 222 is composed of a third connecting section, an anti-collision section and a fourth connecting section that are fixedly connected in sequence, wherein the third connecting section and the fourth connecting section are fixedly connected to a pair of sleeves 221 respectively, and the connection between the anti-collision section and the third connecting section and the connection between the anti-collision section and the fourth connecting section are both S-shaped. The S-shaped setting is to buffer the deformation of the anti-collision section, improve the buffering effect of the anti-collision section, avoid the U-shaped anti-collision plate 222 from being subjected to excessive force and causing the machine head 104 to vibrate, and further avoid the internal components of the machine head 104 from vibrating. The U-shaped anti-collision plate 222 is made of elastic material, and the first anti-collision plate 223 and the second The anti-collision plates 224 are both arranged in a Y shape, and a pair of process holes are opened on the first anti-collision plate 223 and the second anti-collision plate 224. The first anti-collision plate 223 and the second anti-collision plate 224 are both made of elastic material. In order to lighten the material and reduce its production cost, a pair of C-shaped clamping plates are fixedly connected to one end of the first anti-collision plate 223, and a C-shaped rubber sleeve is fixedly connected inside the C-shaped clamping plate. The C-shaped rubber sleeve corresponds to the socket on the side wall of the machine head 104. The C-shaped clamping plate and the C-shaped rubber sleeve are arranged to facilitate clamping of the pipeline inserted into the socket of the machine head 104 to prevent it from tilting due to collision and to prevent it from falling off during use.

[0033] like Figures 3 to 7 As shown, the anti-blocking component 230 includes a mounting frame 231 arranged in the air outlet end of the head 104, the mounting frame 231 is fixedly connected to the second connecting section, and a first baffle 232, a second baffle 233 and a third baffle 234 are fixedly sleeved in sequence on a side wall of the mounting frame 231 close to the fixed ring 215, a first protective plate 235 fixedly sleeved on the mounting frame 231 is provided on the side of the first baffle 232 away from the second baffle 233, a second protective plate 236 fixedly sleeved on the mounting frame 231 is provided between the first baffle 232 and the second baffle 233, a third protective plate 237 fixedly sleeved on the mounting frame 231 is provided between the second baffle 233 and the third baffle 234, a first ring plate 238 is fixedly connected to the inner wall of the third baffle 234, and a second ring plate 239 is fixedly connected to the open end of the third baffle 234.

[0034] The mounting frame 231 is arranged in a bowl shape, and the bottom end of the mounting frame 231 is arranged in a convex inner and concave outer shape, the first baffle plate 232, the second baffle plate 233 and the third baffle plate 234 are all arranged in a trumpet shape, and the diameters of the ports at one end where the first baffle plate 232, the second baffle plate 233 and the third baffle plate 234 are fixed to the mounting frame 231 increase successively to the other end, the first protective plate 235, the second protective plate 236 and the third protective plate 237 are all arranged in a curved shape, and the diameters of the ports at one end where the first protective plate 235, the second protective plate 236 and the third protective plate 237 are fixed to the mounting frame 231 are larger than the diameters of the ports at the other end, and the inner sides of the first protective plate 235, the second protective plate 236 and the third protective plate 237 are provided with a plurality of air outlet holes opened on the mounting frame 231, and the bottom of the mounting frame 231 is located in the third baffle plate 234, the first ring plate 238 and the second ring plate 239 are arranged in a ring shape, and the inner side wall of the second ring plate 239 is arranged in an inclined shape , and the diameter of one end port fixed to the third baffle 234 is larger than the diameter of the other end port, the second ring plate 239 is arranged in the third baffle 234, a first air outlet cavity is formed between the first protective plate 235 and the first baffle 232, a second air outlet cavity is formed between the second protective plate 236 and the second baffle 233, and a third air outlet cavity is formed between the third protective plate 237 and the third baffle 234. The inner diameter of the first baffle 232 is larger than the inner diameter of the second baffle 233, and the second baffle 23 The inner diameter of 3 is larger than the inner diameter of the third baffle 234, the mounting frame 231, the first baffle 232, the second baffle 233, the third baffle 234, the first protective plate 235, the second protective plate 236, the third protective plate 237, the first ring plate 238, the second ring plate 239, the clamping card 212, the fixing ring 215 and the supplementary sheet 213 are an integrated structure, and the inner walls and outer walls of the first baffle 232, the second baffle 233 and the third baffle 234 are all provided with sterile cloth.

[0035] By providing the anti-blocking component 230, during use, oxygen will pass through the mounting frame 231 and then overflow from the air outlet, the overflowed gas will overflow through the first air outlet cavity, the second air outlet cavity and the third air outlet cavity, and then enter the air outlet end of the head 104, and be guided to the breathing mask by the pipeline, when the patient's oral and nasal secretions and the hot air generated by breathing enter the pipeline, they will first contact the second ring plate 239 and be blocked for the first time, the blocked secretions and hot air will further enter the third baffle 234 along the second ring plate 239, the hot air will contact the bottom of the mounting frame 231, and then the hot air will be dispersed into the sterile cloth, when the hot air becomes water droplets, it will be stored in the first ring plate 238 and the second ring plate 239, at the same time, the secretions will also enter the third baffle 234, contact the sterile cloth, and slide to the first ring plate 238 and 289, part of the overflowed hot air and secretions will enter the second baffle plate 233 and contact the sterile cloth, and the remaining overflowed hot air and secretions will enter the first baffle plate 232 and contact the sterile cloth. During the process, the third protective plate 237 and the second protective plate 236 will block the hot air and secretions, and the remaining part will be blocked by the mounting frame 231, so that the water vapor and secretions formed by the hot air can be blocked and collected, so that they cannot contact the flow sensor, thereby avoiding the water vapor and secretions formed by the hot air from adhering to the vicinity of the flow sensor, further avoiding the influence of the sensor on the perception and measurement of the airflow, and further avoiding the secretions and water vapor from clogging the sensor pores and obstructing the airflow, thereby avoiding the low flow value detected by the detection device, thereby affecting the normal operation of the ventilator and the ventilation effect of the patient.

[0036] The working principle of the technical solution provided by the present invention is as follows: when installing the pipeline, when the pipeline is inserted into the outer sleeve 214, the outer sleeve 214 will be expanded, and then the supplementary sheet 213 will be deformed. When the pipeline stops moving, the rebound of the supplementary sheet 213 will make the outer sleeve 214 close to the pipeline. When the pipeline enters the ports at both ends of the head 104, it will contact the clamping card 212, and then the clamping card 212 will move toward the receiving groove 211. The connection between the clamping section and the first connecting section and the connection between the clamping section and the second connecting section will be deformed. When the pipeline stops moving, the clamping card 212 will rebound at the same time under the action of the rebound of the above two connection points, which will make the clamping section and the pipeline close to each other. When the pipeline is inserted into the jack of the machine head 104, the pipeline will be inserted into a rubber sleeve or a C-shaped rubber sleeve for clamping, and then the hanging rod 227 and the three-way pipe inserted into the air intake end of the machine head 104 will be fixed, and it will be hooked on the three-way pipe fork when fixed.

[0037] During use, oxygen will pass through the mounting frame 231 and then overflow from the air outlet. The overflowed gas will overflow through the first air outlet cavity, the second air outlet cavity and the third air outlet cavity, and then enter the air outlet end of the head 104, and be guided to the breathing mask by the pipeline. When the patient's oral and nasal secretions and the hot air generated by breathing enter the pipeline, they will first contact the second ring plate 239 and be blocked for the first time. The blocked secretions and hot air will further enter the third baffle 234 along the second ring plate 239, and the hot air will contact the bottom of the mounting frame 231, which will cause the hot air to disperse and enter. When the hot air turns into water droplets, it will be stored in the first ring plate 238 and the second ring plate 239. At the same time, the secretions will also enter the third baffle plate 234, come into contact with the sterile cloth, and slide into the first ring plates 238 and 289 for storage. Some of the overflowed hot air and secretions will enter the second baffle plate 233 and come into contact with the sterile cloth, and the remaining overflowed hot air and secretions will enter the first baffle plate 232 and come into contact with the sterile cloth. During this process, the third protective plate 237 and the second protective plate 236 will block the hot air and secretions, and the remaining part will be blocked by the mounting frame 231.

[0038] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gas flow detection device for a medical ventilator, characterized in that: It includes an airflow detection mechanism, which includes a body and a head, a shell is sleeved on the body, and a connecting pipeline is connected between the shell and the head; A protection component, used to protect the machine head and pipeline from falling off, and the protection component is connected to the machine head; The protection component includes a pair of pipeline fixing components connected to each other, wherein the pair of pipeline fixing components are respectively installed at two ends of the machine head, the pair of pipeline fixing components are symmetrically arranged, and an outer protection component is provided between the pair of pipeline fixing components, wherein the pipeline fixing component located at the air outlet end of the machine head is connected to an anti-blocking component.

2. The air flow detection device for medical ventilator according to claim 1, characterized in that: The pipeline fixing component includes a fixing ring fixedly connected to the outer end of the machine head, the outer end of the fixing ring is fixedly connected to an outer sleeve, a mounting groove is provided in the outer sleeve, a plurality of supplementary sheets distributed in a circular array are fixedly connected in the mounting groove, and the supplementary sheets are fixedly connected to the fixing ring.

3. The air flow detection device for medical ventilator according to claim 2, characterized in that: The pipeline fixing component also includes a plurality of receiving grooves which are opened on the inner wall of the machine head and distributed in a circular array, and a clamping card which is fixedly connected to the fixing ring is installed in the receiving groove.

4. The air flow detection device for medical ventilator according to claim 3, characterized in that: The clamping card is composed of a first connecting section, a clamping section and a second connecting section which are fixedly connected in sequence, wherein the first connecting section is fixedly connected to the fixing ring, and the connection between the clamping section and the first connecting section and the connection between the clamping section and the second connecting section are both S-shaped, and the clamping card is made of elastic material.

5. The air flow detection device for medical ventilator according to claim 3, characterized in that: The supplementary sheet is arranged in a wave shape and is made of elastic material. A plurality of the supplementary sheets form a cavity, and the port diameter of the cavity at one end of the fixing ring decreases successively toward the port at the other end.

6. The air flow detection device for medical ventilator according to claim 1, characterized in that: The outer protection component includes a pair of sleeves, the pair of sleeves are respectively fixedly sleeved on the two ends of the machine head, a pair of U-shaped anti-collision plates are fixedly connected between the pair of sleeves, and the pair of U-shaped anti-collision plates are respectively located on both sides of the machine head, one of the U-shaped anti-collision plates is fixedly connected to the first anti-collision plate and the second anti-collision plate, and the other U-shaped anti-collision plate is rotatably connected to the outer side wall of the plate, a universal ball is installed on the sleeve located on the air intake end of the machine head, the ball sleeve of the universal ball is fixedly connected to the sleeve, and a hanging rod is fixedly connected to the ball head of the universal ball, a pair of waist-shaped holes are opened on the U-shaped anti-collision plate, a first positioning plate and a second positioning plate are fixedly connected in one of the waist-shaped holes, a pair of first plug holes are opened on the first positioning plate, and a second plug hole is opened on the second positioning plate, the first plug hole and the second plug hole both correspond to the machine head plug hole, and rubber sleeves are installed in the first plug hole and the second plug hole.

7. The air flow detection device for medical ventilator according to claim 6, characterized in that: The U-shaped anti-collision plate is composed of a third connecting section, an anti-collision section and a fourth connecting section that are fixedly connected in sequence, wherein the third connecting section and the fourth connecting section are respectively fixedly connected to a pair of the sleeves, and the connection between the anti-collision section and the third connecting section and the connection between the anti-collision section and the fourth connecting section are both S-shaped, and the U-shaped anti-collision plate is made of elastic material.

8. The air flow detection device for medical ventilator according to claim 6, characterized in that: The first anti-collision sheet and the second anti-collision sheet are both arranged in a Y shape, and a pair of process holes are opened on the first anti-collision sheet and the second anti-collision sheet. A pair of C-shaped clamping plates are fixedly connected to one end of the first anti-collision sheet, and a C-shaped rubber sleeve is fixedly connected inside the C-shaped clamping plate. The C-shaped rubber sleeve corresponds to the socket on the side wall of the machine head. The first anti-collision sheet and the second anti-collision sheet are both made of elastic material, and the hanging rod is arranged in an L shape.

9. The air flow detection device for medical ventilator according to claim 2, characterized in that: The anti-blocking component includes a mounting frame arranged in the air outlet end of the machine head, the mounting frame is fixedly connected to the second connecting section, and a first baffle, a second baffle and a third baffle are fixedly sleeved in sequence on a side wall of the mounting frame close to the fixing ring, a first protective plate fixedly sleeved on the mounting frame is provided on the side of the first baffle away from the second baffle, a second protective plate fixedly sleeved on the mounting frame is provided between the first baffle and the second baffle, a third protective plate fixedly sleeved on the mounting frame is provided between the second baffle and the third baffle, a first ring plate is fixedly connected to the inner wall of the third baffle, and a second ring plate is fixedly connected to the open end of the third baffle.

10. The air flow detection device for medical ventilator according to claim 9, characterized in that: The mounting frame is arranged in a bowl shape, and the bottom end of the mounting frame is arranged in an inner convex and outer concave shape. The first baffle plate, the second baffle plate and the third baffle plate are all arranged in a trumpet shape. The diameters of the ports at one end where the first baffle plate, the second baffle plate and the third baffle plate are fixed to the mounting frame increase in sequence to the diameters of the ports at the other end. The first protective plate, the second protective plate and the third protective plate are all arranged in a curved shape. The diameters of the ports at one end where the first protective plate, the second protective plate and the third protective plate are fixed to the mounting frame are larger than the diameters of the ports at the other end. The inner sides of the first protective plate, the second protective plate and the third protective plate are provided with a plurality of ports opened in the mounting frame. The air outlet hole on the mounting frame, the bottom of the mounting frame is located in the third baffle plate, the first ring plate and the second ring plate are arranged in a ring shape, the inner side wall of the second ring plate is arranged in an inclined shape, and the diameter of the end port fixed to the third baffle plate is larger than the diameter of the other end port, the second ring plate is arranged in the third baffle plate, a first air outlet cavity is formed between the first protective plate and the first baffle plate, a second air outlet cavity is formed between the second protective plate and the second baffle plate, and a third air outlet cavity is formed between the third protective plate and the third baffle plate, the inner diameter of the first baffle plate is larger than the inner diameter of the second baffle plate, and the inner diameter of the second baffle plate is larger than the inner diameter of the third baffle plate.

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