Pipeline structure and atomization device

Abstract

The invention provides a pipeline structure and an atomization device, and relates to the technical field of medical equipment.The pipeline structure comprises a first connecting pipe section, a second connecting pipe section and a buffering part, the first connecting pipe section comprises a first receiving end and a first output end and is further provided with a first buffering channel, and a first receiving opening and a first output opening are formed in the two ends of the first buffering channel respectively; the second connecting pipe section comprises a second receiving end and a second output end, and is also provided with a second buffer channel; the second output end is connected to the side part of the first connecting pipe section; the buffer part is positioned at the second output end, blocks the first and second buffer channels and is also provided with a buffer hole for communicating the first and second buffer channels; a concave surface sunken back to the first receiving opening is arranged in the first buffer channel; the concave surface is also positioned between the first output end and the second output end; the first receiving ports are arranged on the concave surface at intervals. According to the pipeline structure and the atomization device, the utilization rate of atomized medicine can be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a pipeline structure and an atomizing device. Background Art

[0002] In the related technology, in order to facilitate drug treatment to the patient's respiratory tract, the high-flow respiratory humidification therapy device and the nebulizer module are connected through a three-way pipe. The humidified gas output by the humidification tank of the high-flow respiratory humidification therapy device will enter the three-way pipe, and the nebulizer module will also send the atomized medicine into the three-way pipe. The atomized medicine and the humidified gas are mixed and eventually sent to the patient's body, and the patient absorbs the medicine in the mixed gas through breathing.

[0003] However, current atomization modules deliver a high drug flow rate, resulting in a high drug concentration in the mixed gas. When patients absorb the drug in the mixed gas, they are prone to incomplete absorption due to drug overdose, and unabsorbed drug is exhaled by the patient, resulting in drug waste. The respiratory system's airway mucosa is also susceptible to mechanical damage from high-velocity drug particles. A large amount of aerosol entering the alveoli in a short period of time, exceeding the surface tension equilibrium, can induce pulmonary edema. This, in turn, can make it difficult for frail patients to cough up sputum, leading to blockage of the secretion tract. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pipeline structure that can increase the utilization rate of aerosolized medicine.

[0005] The present invention also provides an atomizing device having the above pipeline structure.

[0006] According to the first aspect of the present invention, the pipeline structure is used to connect the humidification tank and the atomization module, the humidification tank is used to discharge humidified gas, and the atomization module is used to discharge atomized medicine. The pipeline structure includes: a first connecting pipe section, comprising a first receiving end and a first output end, and further comprising a first buffer channel, wherein the first buffer channel forms a first receiving port at the first receiving end and a first output port at the first output end; a second connecting pipe section, comprising a second receiving end and a second output end, and further having a second buffer channel, wherein the second receiving end is used to connect to the atomization module; the second output end is connected to a side portion of the first connecting pipe section and is located between the first receiving end and the first output end; a buffer portion, located at the second output end and blocking the first buffer channel and the second buffer channel, the buffer portion having a buffer hole connecting the first buffer channel and the second buffer channel; the cross-sectional area of ​​the buffer hole is smaller than the cross-sectional area of ​​the second buffer channel; A concave surface is provided inside the first buffer channel; the concave surface is recessed away from the first receiving port and is located between the first output end and the second output end in a first direction, and the first direction is the direction from the first receiving end to the first output end; the first receiving port is spaced from the concave surface in a direction perpendicular to the first direction, and is used to connect to the humidification tank, and the humidified gas discharged from the humidification tank can flow to the concave surface through the first receiving port.

[0007] The pipeline structure according to the embodiment of the present invention has at least the following beneficial effects: Since the humidified gas discharged from the humidification tank can flow toward the concave surface through the first receiving port, the concave surface guides the humidified gas it contacts toward the wall near the first buffer channel and further in the opposite direction to the first receiving end. The humidified gas originally near the first receiving end then continues to flow toward the concave surface along with the humidified gas flowing out of the first receiving port, causing the first buffer channel to gradually accumulate humidified gas and the gas pressure in the first buffer channel to gradually increase. When the humidified gas pressure is high enough, of the humidified gas flowing toward the concave surface, some of the humidified gas guided by the concave surface will eventually flow toward the first output port due to the gas pressure, while the remaining humidified gas will again be guided by the concave surface in the opposite direction to flow toward the first receiving end.

[0008] During the above-mentioned circulation process, the low-flow rate atomized medicine flowing from the buffer hole into the first buffer channel will mix with the humidified gas. Since the concave surface is located between the first output end and the second output end, the humidified gas guided by the concave surface to flow in the reverse direction will contact and mix with the atomized medicine liquid. Since the humidified gas circulates in the first buffer channel under the influence of the concave surface and the humidified gas flowing in from the first receiving port, the atomized medicine that follows the humidified gas will also circulate with the humidified gas, thereby extending the flow time of the atomized medicine in the first buffer channel and enhancing the uniformity of the mixing between the atomized medicine and the humidified gas, which is beneficial to reducing the peak concentration of the atomized medicine in the mixed gas when continuously applying the medicine to the patient, thereby reducing the situation where the patient does not fully absorb the atomized medicine during a single breath, which is beneficial to further improve the utilization rate of the atomized medicine.

[0009] According to some embodiments of the present invention, the pipeline structure also includes a protrusion, which is located in the first buffer channel, connected to the first output end, and protrudes toward the first receiving port; the side wall of the protrusion and the first connecting pipe section define an annular channel; the concave surface is located on the side of the protrusion opposite to the first direction.

[0010] According to some embodiments of the present invention, a guide surface is provided on the side of the raised portion perpendicular to the first direction, and the guide surface is spaced apart from the inner wall of the first buffer channel; an arc-shaped transition surface is provided between the edge of the concave surface and the end of the guide surface facing away from the first direction.

[0011] According to some embodiments of the present invention, the pipeline structure has a second direction, which is the arrangement direction of the first connecting pipe segment and the second connecting pipe segment, and the buffer portion includes a first connecting portion and a second connecting portion connected to each other, and the first connecting portion protrudes toward the second direction relative to the second connecting portion; the first connecting portion has an air vent for connecting the first buffer channel and the second buffer channel, and the sum of the cross-sectional areas of the air vent and the buffer hole is smaller than the cross-sectional area of ​​the second buffer channel.

[0012] According to some embodiments of the present invention, the buffer hole has a first buffer area and a second buffer area that are connected to each other, the first buffer area is located at the first connecting portion, and the second buffer area is located at the second connecting portion.

[0013] According to some embodiments of the present invention, a surface of the buffer portion on a side close to the first buffer channel is coplanar with an inner wall surface of the first buffer channel.

[0014] According to some embodiments of the present invention, the pipeline structure has a second direction, the second direction is the arrangement direction of the first connecting pipe section and the second connecting pipe section, and the first output port is arranged on one side of the concave surface in the second direction.

[0015] According to some embodiments of the present invention, the pipeline structure has a second direction, the second direction is the arrangement direction of the first connecting pipe segment and the second connecting pipe segment, the buffer hole is located on one side of the concave surface in the third direction, and the third direction, the second direction and the first direction are perpendicular to each other.

[0016] According to some embodiments of the present invention, along a direction from the second receiving end to the second output end, the second buffer channel is inclined toward the first output end.

[0017] The atomizing device according to the second embodiment of the present invention comprises: The pipeline structure as described in any one of the above embodiments; The atomization module has a nozzle for discharging atomized medicine, the atomization module is connected to the second receiving end, and the nozzle is connected to the second buffer channel.

[0018] The atomizing device according to the embodiment of the present invention has at least the following beneficial effects: Since the humidified gas discharged from the humidification tank can flow toward the concave surface through the first receiving port, the concave surface guides the humidified gas it contacts toward the wall near the first buffer channel and further in the opposite direction to the first receiving end. The humidified gas originally near the first receiving end then continues to flow toward the concave surface along with the humidified gas flowing out of the first receiving port, causing the first buffer channel to gradually accumulate humidified gas and the gas pressure in the first buffer channel to gradually increase. When the humidified gas pressure is high enough, of the humidified gas flowing toward the concave surface, some of the humidified gas guided by the concave surface will eventually flow toward the first output port due to the gas pressure, while the remaining humidified gas will again be guided by the concave surface in the opposite direction to flow toward the first receiving end.

[0019] During the above-mentioned circulation process, the low-flow rate atomized medicine flowing from the buffer hole into the first buffer channel will mix with the humidified gas. Since the concave surface is located between the first output end and the second output end, the humidified gas guided by the concave surface to flow in the reverse direction will contact and mix with the atomized medicine liquid. Since the humidified gas circulates in the first buffer channel under the influence of the concave surface and the humidified gas flowing in from the first receiving port, the atomized medicine that follows the humidified gas will also circulate with the humidified gas, thereby extending the flow time of the atomized medicine in the first buffer channel and enhancing the uniformity of the mixing between the atomized medicine and the humidified gas, which is beneficial to reducing the peak concentration of the atomized medicine in the mixed gas when continuously applying the medicine to the patient, thereby reducing the situation where the patient does not fully absorb the atomized medicine during a single breath, which is beneficial to further improve the utilization rate of the atomized medicine.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 This is an overall schematic diagram of the pipeline structure of some embodiments of the present invention; Figure 2 for Figure 1 A partial enlarged view shown in FIG. Figure 3 for Figure 1 Schematic diagram of the flow of atomized drugs and humidified gas; Figure 4 for Figure 1 The local enlarged view shown in BB; Figure 5 for Figure 1 A partial schematic diagram viewed from the second receiving end to the second output end; Figure 6 Schematic diagram of an overall atomization device according to some embodiments of the present invention.

[0022] Reference numerals: Pipeline structure 10; First connecting pipe section 100, first receiving end 110, first receiving port 111, first output end 120, first output port 121, first buffer channel 130, annular channel 131, concave surface 140; A second connecting pipe section 200, a second receiving end 210, a second output end 220, and a second buffer channel 230; Buffer portion 300, buffer hole 310, first buffer zone 311, second buffer zone 312, first connecting portion 320, vent hole 330, second connecting portion 340; The raised portion 400, the guide surface 410, and the arc-shaped transition surface 420; plug 500; Atomization module 20 and nozzle 21. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the present invention, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] In the prior art, high-flow respiratory humidification therapy devices provide humidified gas to patients, thereby providing patients with a stable high oxygen concentration and keeping the patient's airway mucociliary cleaning function in the best state. Based on the above scheme, some technologies propose to provide drugs to patients at the same time as providing humidified gas by combining a three-way pipe and a high-flow respiratory humidification therapy device. Specifically, the high-flow respiratory humidification therapy device generates humidified gas provided to the patient through a built-in humidification tank, and the atomization module can discharge the liquid medicine stored in itself and form atomized medicine. The atomized medicine and humidified gas are mixed through the three-way pipe and finally delivered to the patient. However, due to the high flow rate of the atomized medicine sprayed by the existing atomization module, it is easy to cause a high concentration of the medicine, which is not conducive to absorption by the human body, resulting in waste of atomized medicine and also causing damage to the human body.

[0029] In view of this, please refer to Figures 1 to 5 As shown, the present invention provides a pipeline structure 10. The pipeline structure 10 of the present invention is used to connect a humidifier tank and an atomizer module, and is capable of receiving humidified gas produced by the humidifier tank and atomized medication produced by the atomizer module. Without departing from the inventive concept of the present invention, the pipeline structure 10 of the present invention can also be connected to a device that includes a humidifier tank and an atomizer module. In some embodiments, the pipeline structure 10 is connected to a high-flow respiratory humidification therapy device that includes a humidifier tank.

[0030] Please refer to Figure 1 As shown, the pipeline structure 10 of the present invention includes a first connecting pipe section 100 , a second connecting pipe section 200 and a buffer portion 300 .

[0031] The first connecting pipe section 100 of the present invention includes a first receiving end 110 and a first output end 120, and further has a first buffer channel 130. The first buffer channel 130 forms a first receiving port 111 at the first receiving end 110 and a first output port 121 at the first output end 120. The first receiving port 111 of the present invention is used to connect to the humidification tank, and the humidified gas discharged from the humidification tank can enter the first buffer channel 130 through the first receiving port 111.

[0032] The second connecting pipe section 200 of the present invention includes a second receiving end 210 and a second output end 220, as well as a second buffer channel 230. The second receiving end 210 is used to connect to the atomization module 20. The second output end 220 is connected to the side of the first connecting pipe section 100 and is located between the first receiving end 110 and the first output end 120. The second receiving port of the present invention is used to connect to the atomization module 20. The atomized medicine discharged from the atomization module 20 can enter the second buffer channel 230 through the second receiving port.

[0033] The buffer portion 300 of the present invention is located at the second output end 220 and blocks the first buffer channel 130 from the second buffer channel 230. The buffer portion 300 has a buffer hole 310 connecting the first buffer channel 130 and the second buffer channel 230. The cross-sectional area of ​​the buffer hole 310 is smaller than that of the second buffer channel 230. Because the first and second buffer channels 130 and 230 are connected through the buffer hole 310, aerosolized medicine entering the second buffer channel 230 from the second receiving port can pass through the buffer hole 310 into the first buffer channel 130 and mix with the humidified gas within the first buffer channel 130. Furthermore, because the cross-sectional area of ​​the buffer hole 310 is smaller than that of the second buffer channel 230, the aerosolized medicine entering the second buffer channel 230 is blocked by the buffer portion 300 and remains in the second buffer channel 230. Ultimately, when it flows from the buffer hole 310 into the first buffer channel 130, it has a lower flow rate. The mixed gas formed by mixing the humidified gas and the low-flow atomized drug will have a lower concentration of the atomized drug, thereby enabling the patient to fully absorb the atomized drug during breathing.

[0034] For further information, please refer to Figure 1 、 Figure 2 、 Figure 3 As shown, Figure 3 The figure shows a flow pattern of humidified gas, aerosolized drug, and mixed gas within a pipeline structure. A concave surface 140 is provided within the first buffer channel 130 of the present invention. Concave surface 140 is recessed away from the first receiving port 111 and is located between the first output end 120 and the second output end 220 in a first direction, with the first direction being from the first receiving port 110 to the first output end 120. The first receiving port 111 is spaced apart from concave surface 140 in a direction perpendicular to the first direction and is used to communicate with the humidification tank. Humidified gas discharged from the humidification tank can flow through the first receiving port 111 to the concave surface 140.

[0035] Since the humidified gas discharged from the humidification tank can flow toward the concave surface 140 through the first receiving port 111, the concave surface 140 will guide the humidified gas it contacts to move toward the wall near the first buffer channel 130, and further flow in the opposite direction to the first receiving end 110. The humidified gas originally near the first receiving end 110 will continue to flow toward the concave surface 140 along with the humidified gas flowing out of the first receiving port 111, thereby gradually accumulating humidified gas in the first buffer channel 130 and gradually increasing the gas pressure in the first buffer channel 130. When the humidified gas pressure is high enough, of the humidified gas flowing toward the concave surface 140, some of the humidified gas guided by the concave surface 140 will eventually flow toward the first output port 121 due to the gas pressure, while the remaining humidified gas will again be guided by the concave surface 140 in the opposite direction to flow toward the first receiving end 110.

[0036] During the above-mentioned circulation process, the low-flow rate atomized medicine flowing from the buffer hole 310 into the first buffer channel 130 will mix with the humidified gas. Since the concave surface 140 is located between the first output end 120 and the second output end 220, the humidified gas guided by the concave surface 140 to flow in the opposite direction will contact and mix with the atomized liquid medicine. Since the humidified gas circulates in the first buffer channel 130 under the influence of the concave surface 140 and the humidified gas flowing in from the first receiving port 111, the atomized medicine that follows the humidified gas will continue to circulate with the humidified gas, thereby extending the flow time of the atomized medicine in the first buffer channel 130 and enhancing the uniformity of the mixing between the atomized medicine and the humidified gas. This is beneficial to reducing the peak concentration of the atomized medicine in the mixed gas when the medicine is continuously applied to the patient, thereby reducing the situation where the patient does not fully absorb the atomized medicine during a certain breathing process, which is beneficial to further improve the utilization rate of the atomized medicine.

[0037] It should be noted that, based on the inventive concept of the present invention, those skilled in the art can design Figure 1 The three-way pipe structure shown can also be implemented by blocking one of the openings of an existing four-way pipe and adjusting the internal structure of the four-way pipe accordingly to obtain the solution of the present invention. It can also be implemented by adjusting the number of openings and the internal structure of other existing pipe connectors accordingly to obtain the solution of the present invention. The pipe structure 10 obtained by adjusting based on the inventive concept of the present invention is within the scope of protection of the present invention.

[0038] Without departing from the inventive concept of the present invention, those skilled in the art may adjust the distance between the first receiving port 111 and the concave surface 140 based on the actual flow rate and concentration of the humidified gas flowing out of the first receiving port 111. For example, in some embodiments, the distance between the first receiving port 111 and the concave surface 140 is 40 mm to 50 mm.

[0039] Without departing from the inventive concept of the present invention, those skilled in the art may adjust the position of the concave surface 140 . In some embodiments, the concave surface 140 is directly disposed on the first output end 120 .

[0040] As a preferred option, please refer to Figure 1 、 Figure 2 As shown, in some embodiments, the pipeline structure 10 further includes a raised portion 400, which is located within the first buffer channel 130, connected to the first output end 120, and protruding toward the first receiving port 111. The sidewall of the raised portion 400 and the first connecting pipe section 100 define an annular channel 131. The concave surface 140 is located on the side of the raised portion 400 opposite to the first direction. Through this solution, the annular channel 131 defined between the raised portion 400 and the first connecting pipe section 100 can provide space for gas storage, thereby extending the time that the humidified gas remains in the first buffer channel 130 and further enhancing the uniformity of mixing between the aerosolized drug and the humidified gas.

[0041] For details, please refer to Figure 3 As shown, when the gas pressure between the concave surface 140 and the first receiving section is relatively high, the mixed gas will first enter the annular channel 131, then flow around the side of the raised portion 400 to the first output port 121, and finally flow into the patient's body. The flow of the mixed gas in the annular channel 131 prolongs its own flow time in the first buffer channel 130, and the atomized medicine and the humidified gas can be mixed more evenly.

[0042] On the other hand, as mentioned above, those skilled in the art can set the distance between the first receiving port 111 and the concave surface 140 by themselves. In combination with the above scheme, the field can further adjust the protruding length of the protrusion 400 so that the length of the annular channel 131 is extended while the distance between the concave surface 140 and the first receiving port 111 remains unchanged, thereby further increasing the flow time of the mixed gas in the annular channel 131, so that the atomized medicine and the humidified gas are mixed more evenly.

[0043] For further information, please refer to Figure 1 、 Figure 2 、 Figure 3As shown, in some embodiments, a guide surface 410 is provided on the side of the raised portion 400 perpendicular to the first direction, and the guide surface 410 is spaced apart from the inner wall of the first buffer channel 130. A curved transition surface 420 is provided between the edge of the concave surface 140 and the end of the guide surface 410 facing away from the first direction. Through the above solution, a portion of the mixed gas guided by the concave surface 140 can flow along the concave surface 140 and, influenced by the Coanda effect, continue to flow along the curved transition surface 420 to the guide surface 410. The mixed gas can more easily flow from the concave surface 140 into the annular channel 131, allowing the mixed gas to further utilize the space in the annular channel 131 for flow, resulting in a longer flow time for the humidified gas and a more uniform mixing between the atomized drug and the humidified gas.

[0044] Those skilled in the art may adjust the structure of the buffer portion 300 without departing from the inventive concept of the present invention.

[0045] For example, please refer to Figure 1 、 Figure 4 As shown, in some embodiments, the surface of the buffer portion 300 on the side closest to the first buffer channel 130 is coplanar with the inner wall surface of the first buffer channel 130. Through the above solution, the buffer portion 300 can provide a flow space for the humidified gas, allowing the humidified gas to flow more smoothly along the inner wall of the first buffer channel 130 toward the first receiving end 110, and more easily approaching the first receiving end 110 and flowing in the opposite direction with the humidified gas flowing out of the first receiving port 111. This helps to prolong the circulation time of the humidified gas in the first buffer channel 130, thereby ensuring more uniform mixing between the humidified gas and the aerosolized drug.

[0046] As a preferred method, please refer to Figure 1 、 Figure 4 As shown, in some embodiments, the pipeline structure 10 has a second direction, which is the arrangement direction of the first connecting pipe segment 100 and the second connecting pipe segment 200, and the buffer portion 300 includes a first connecting portion 320 and a second connecting portion 340 connected to each other, and the first connecting portion 320 protrudes toward the second direction relative to the second connecting portion 340; the first connecting portion 320 has an air vent 330 for connecting the first buffer channel 130 and the second buffer channel 230, and the sum of the cross-sectional areas of the air vent 330 and the buffer hole 310 is smaller than the cross-sectional area of ​​the second buffer channel 230.

[0047] Because the sum of the cross-sectional areas of the air vents 330 and the buffer holes 310 is smaller than the cross-sectional area of ​​the second buffer channel 230, the aerosolized drug entering the second buffer channel 230 is blocked by the buffer portion 300 and remains in the second buffer channel 230. Furthermore, because the aerosolized drug flows from the second connecting pipe section 200 toward the first connecting pipe section 100, i.e., the aerosolized drug flows in the opposite direction of the second direction, as the aerosolized drug flows from the second buffer channel 230 into the buffer holes 310, some droplets of the aerosolized drug, blocked by the buffer portion 300, condense into water droplets on the surface of the buffer portion 300 near the second buffer channel 230.

[0048] Through the above scheme, since the first connecting part 320 protrudes toward the second direction relative to the second connecting part 340, the water droplets condensed on the first connecting part 320 will be pushed by the atomized medicine flowing in the opposite direction to the second direction and flow along the surface of the buffer part 300 to the second connecting part 340, thereby enabling the air vent 330 located in the first connecting part 320 to maintain a state of connecting the first buffer channel 130 and the second buffer channel 230, and the atomized medicine located in the second buffer channel 230 can continue to enter the first buffer channel 130 through the air vent 330 and mix with the humidified gas, so that the atomized medicine is more stably mixed with the humidified gas during the period of continuous delivery to the second buffer channel 230.

[0049] Based on the above solution, please refer to Figure 4 、 Figure 5 As shown, in some embodiments, the buffer hole 310 has a first buffer zone 311 and a second buffer zone 312 that are interconnected. The first buffer zone 311 is located at the first connecting portion 320, and the second buffer zone 312 is located at the second connecting portion 340. With the above solution, because the first connecting portion 320 protrudes in the second direction relative to the second connecting portion 340, water droplets condensed on the buffer portion 300 and blocking the buffer hole 310 are pushed in the opposite direction by the aerosolized drug in the second direction, causing a portion of the water droplets blocking the buffer hole 310 to flow from the first buffer zone 311 to the second buffer zone 312, thereby maintaining communication between the first buffer zone 311 and the second buffer channel 230. The aerosolized drug in the second buffer channel 230 can continuously pass through the first buffer zone 311 into the first buffer channel 130 and mix with the humidified gas, thereby allowing the aerosolized drug to mix more stably with the humidified gas during its continuous delivery to the second buffer channel 230.

[0050] For further information, please refer to Figure 1 、 Figure 2As shown, in some embodiments, the pipeline structure 10 has a second orientation, which is the arrangement direction of the first connecting pipe section 100 and the second connecting pipe section 200, and the first output port 121 is disposed on one side of the concave surface 140 in the second direction. Through the above solution, when the first connecting pipe section 100 is placed downward, since the first output port 121 is located on one side of the concave surface 140 in the second direction, water droplets condensed during the mixing process of the humidified gas and the aerosolized drug will preferentially move in the opposite direction of the second direction, and then gather toward the side of the first buffer channel 130 away from the first output port 121, delaying the water droplets from clogging the first output port 121 and facilitating the stable outflow of the mixed gas from the first output port 121.

[0051] The above-mentioned scheme of forming an annular channel 131 by using the protrusion 400 and the inner wall of the first buffer channel 130 is described. In combination with the above scheme, when the pipeline structure 10 tilts due to an accident, the side of the protrusion 400 can also block a portion of the condensed water located in the annular channel 131, thereby reducing the possibility of the condensed water accidentally entering the first output port 121, which is conducive to making the mixed gas flow out of the first output port 121 more stably.

[0052] For further information, please refer to Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 As shown, the pipeline structure 10 has a second direction, which is the arrangement direction of the first connecting pipe section 100 and the second connecting pipe section 200. The buffer hole 310 is located on one side of the concave surface 140 in the third direction, and the third direction, the second direction and the first direction are perpendicular to each other.

[0053] Through the above scheme, since the buffer hole 310 is located on one side of the concave surface 140 in the third direction, the flow direction of the atomized medicine flowing out of the buffer hole 310 is staggered with the flow direction of the humidified gas flowing toward the concave surface 140. The atomized medicine flowing out of the buffer hole 310 will be further fully contacted with the humidified gas flowing toward the first receiving end 110, and at the same time reduce the contact between the atomized medicine and the humidified gas flowing toward the concave surface 140, so that the humidified gas flowing out of the first receiving port 111 can flow into the concave surface 140 more stably, and continue to provide humidified gas flowing toward the first receiving end 110 after being guided by the concave surface 140. The humidified gas flowing toward the first receiving end 110 can be more fully mixed with the atomized medicine, and the stability of the mixing process between the humidified gas and the atomized medicine is further improved.

[0054] For further information, please refer to Figure 1 、 Figure 3As shown, in some embodiments, the second buffer channel 230 is inclined toward the first output end 120 along the direction from the second receiving end 210 to the second output end 220. Through the above solution, the aerosolized drug flowing from the second buffer channel 230 will also flow from the buffer hole 310 into the first buffer channel 130 in the inclined direction of the second buffer channel 230, and will have a component velocity toward the first output end 120. Therefore, the aerosolized drug flowing into the first buffer channel 130 will slow down the flow of the humidified gas flowing from the first buffer channel 130 toward the first receiving end 110 toward the first receiving end 110, thereby extending the flow time of the humidified gas in the first buffer channel 130, which is conducive to more complete mixing of the aerosolized drug and the humidified gas.

[0055] Please refer to Figure 3 As shown, in some embodiments, the pipeline structure 10 further includes a plug 500, which is detachably connected to the second receiving end 210 to enable the atomization module 20 to be connected to the second receiving end 210, or to seal the second receiving end 210. Through the above solution, when the atomization module 20 is not needed to provide aerosolized medicine, the plug 500 can be connected to the second receiving end 210, so that the first output port 121 of the pipeline structure 10 can provide humidified gas to the patient alone.

[0056] Based on the above solution, in some embodiments, the plug 500 is integrally connected to the first connecting pipe section 100. The above solution can further prevent the plug 500 from being lost when separated from the second receiving end 210. The user does not need to search for the plug 500 when they need to use it, thereby increasing the usability of the pipeline structure 10.

[0057] Please refer to Figures 1 to 6 As shown, the present invention further provides an atomization device, comprising an atomization module 20 and a pipeline structure 10 as described in any of the above embodiments. The atomization module 20 has a nozzle 21 for discharging atomized medicine, the atomization module 20 is connected to a second receiving end 210, and the nozzle 21 is connected to a second buffer channel 230.

[0058] The atomization module 20 discharges aerosolized medication into the second buffer channel 230 through the nozzle 21. Since the first buffer channel 130 and the second buffer channel 230 are connected via the buffer hole 310, the aerosolized medication entering the second buffer channel 230 from the second receiving port can enter the first buffer channel 130 through the buffer hole 310 and mix with the humidified gas in the first buffer channel 130. Because the cross-sectional area of ​​the buffer hole 310 is smaller than that of the second buffer channel 230, the aerosolized medication entering the second buffer channel 230 is blocked by the buffer portion 300 and remains in the second buffer channel 230. Ultimately, it flows from the buffer hole 310 into the first buffer channel 130 at a lower flow rate. The mixed gas formed by the humidified gas and the low-flow aerosolized medication has a lower concentration of the aerosolized medication, allowing the patient to fully absorb the aerosolized medication during breathing.

[0059] Furthermore, since the humidified gas discharged from the humidification tank can flow toward the concave surface 140 through the first receiving port 111, the concave surface 140 guides the humidified gas it contacts toward the wall near the first buffer channel 130 and further flows in the opposite direction to the first receiving end 110. The humidified gas originally near the first receiving end 110 then continues to flow toward the concave surface 140 along with the humidified gas flowing out of the first receiving port 111, thereby gradually accumulating humidified gas in the first buffer channel 130 and gradually increasing the gas pressure in the first buffer channel 130. When the humidified gas pressure is high enough, of the humidified gas flowing toward the concave surface 140, some of the humidified gas guided by the concave surface 140 will eventually flow toward the first output port 121 due to the gas pressure, while the remaining humidified gas will again be guided by the concave surface 140 in the opposite direction to flow toward the first receiving end 110.

[0060] During the above-mentioned circulation process, the low-flow rate atomized medicine flowing from the buffer hole 310 into the first buffer channel 130 will mix with the humidified gas. Since the concave surface 140 is located between the first output end 120 and the second output end 220, the humidified gas guided by the concave surface 140 to flow in the reverse direction will contact and mix with the atomized liquid medicine. Since the humidified gas circulates in the first buffer channel 130 under the influence of the concave surface 140 and the humidified gas flowing in from the first receiving port 111, the atomized medicine that follows the flow of the humidified gas will also circulate with the humidified gas, thereby extending the flow time of the atomized medicine in the first buffer channel 130 and enhancing the uniformity of the mixing between the atomized medicine and the humidified gas. This is beneficial to reducing the peak concentration of the atomized medicine in the mixed gas when the medicine is continuously applied to the patient, thereby reducing the situation where the patient does not fully absorb the atomized medicine during a single breath, which is beneficial to further improve the utilization rate of the atomized medicine.

[0061] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. Furthermore, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A pipeline structure for connecting a humidification tank and an atomization module, wherein the humidification tank is used to discharge humidified gas and the atomization module is used to discharge atomized medicine, characterized in that: The pipeline structure includes: a first connecting pipe section, comprising a first receiving end and a first output end, and further comprising a first buffer channel, wherein the first buffer channel forms a first receiving port at the first receiving end and a first output port at the first output end; a second connecting pipe section, comprising a second receiving end and a second output end, and further having a second buffer channel, wherein the second receiving end is used to connect to the atomization module; the second output end is connected to a side portion of the first connecting pipe section and is located between the first receiving end and the first output end; a buffer portion, located at the second output end and blocking the first buffer channel and the second buffer channel, the buffer portion having a buffer hole connecting the first buffer channel and the second buffer channel; the cross-sectional area of ​​the buffer hole is smaller than the cross-sectional area of ​​the second buffer channel; A concave surface is provided inside the first buffer channel; the concave surface is recessed away from the first receiving port and is located between the first output end and the second output end in a first direction, and the first direction is the direction from the first receiving end to the first output end; the first receiving port is spaced from the concave surface in a direction perpendicular to the first direction, and is used to connect to the humidification tank, and the humidified gas discharged from the humidification tank can flow to the concave surface through the first receiving port.

2. The pipeline structure according to claim 1, characterized in that: The pipeline structure further includes a raised portion, the raised portion being located in the first buffer channel, the raised portion being connected to the first output end, and protruding toward the first receiving port; a side wall of the raised portion and the first connecting pipe section defining an annular channel; The concave surface is located on a side of the convex portion opposite to the first direction.

3. The pipeline structure according to claim 2, characterized in that: A guide surface is provided on the side of the raised portion perpendicular to the first direction, and the guide surface is spaced apart from the inner wall of the first buffer channel; an arc-shaped transition surface is provided between the edge of the concave surface and the end of the guide surface facing away from the first direction.

4. The pipeline structure according to claim 1, characterized in that: The pipeline structure has a second direction, which is the arrangement direction of the first connecting pipe section and the second connecting pipe section. The buffer part includes a first connecting part and a second connecting part connected to each other, and the first connecting part protrudes toward the second direction relative to the second connecting part; the first connecting part has an air vent for connecting the first buffer channel and the second buffer channel, and the sum of the cross-sectional areas of the air vent and the buffer hole is smaller than the cross-sectional area of ​​the second buffer channel.

5. The pipeline structure according to claim 4, characterized in that: The buffer hole has a first buffer area and a second buffer area that are connected to each other. The first buffer area is located at the first connecting portion, and the second buffer area is located at the second connecting portion.

6. The pipeline structure according to claim 1, characterized in that: A surface of the buffer portion on a side close to the first buffer channel is coplanar with an inner wall surface of the first buffer channel.

7. The pipeline structure according to claim 1, characterized in that: The pipeline structure has a second direction, which is the arrangement direction of the first connecting pipe section and the second connecting pipe section, and the first output port is arranged on one side of the concave surface in the second direction.

8. The pipeline structure according to claim 1, characterized in that: The pipeline structure has a second direction, which is the arrangement direction of the first connecting pipe section and the second connecting pipe section. The buffer hole is located on one side of the concave surface in the third direction. The third direction, the second direction and the first direction are perpendicular to each other.

9. The pipeline structure according to claim 1, characterized in that: Along a direction from the second receiving end to the second output end, the second buffer channel is inclined toward the first output end.

10. Atomizing device, characterized in that include: The pipeline structure according to any one of claims 1 to 9; The atomization module has a nozzle for discharging atomized medicine, the atomization module is connected to the second receiving end, and the nozzle is connected to the second buffer channel.

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