A humidification chamber for a breathing machine

Abstract

The utility model provides a kind of humidification tank for breathing machine, including the humidification tank body of inner cavity hollow, the gas inlet pipe, exhaust pipe and liquid supplement pipe being integrated with the inner cavity communication of humidification tank in humidification tank body top, the end of gas inlet pipe extends to the inner cavity of humidification tank body, the part of gas inlet pipe extending to the inner cavity of humidification tank body is equipped with the speed reduction component of slowing down gas flow rate, the humidification tank for breathing machine, by setting speed reduction component, the possibility of splashing caused by the gas with flow rate too fast directly contacting with humidification liquid is reduced, and then the possibility of splashing liquid entering the respiratory tract of patient through exhaust pipe is reduced, improve the safety and reliability of device.

Description

Technical Field

[0001] This utility model relates to the technical field of humidifiers for ventilators, and specifically to a humidifier for ventilators. Background Technology

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used in respiratory failure caused by various reasons, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation, occupying a very important position in the field of modern medicine. A ventilator is a crucial medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0003] Humidifiers are an important component of ventilators. Their main function is to prevent dry air from irritating the respiratory mucosa by warming and humidifying the airflow, reducing dryness and irritation, protecting the health of the respiratory mucosa, and softening secretions so that they can be more easily discharged, preventing secretions from accumulating in the respiratory tract and reducing the risk of infection.

[0004] However, existing humidifiers for ventilators have the problem that the gas flow rate inside the humidifier is relatively fast. When the airflow comes into contact with the humidifying liquid, it disturbs the humidifying liquid and causes splashing. The splashed humidifying liquid can enter the patient's airway through the exhaust pipe, causing safety hazards. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model proposes a humidifier canister for a ventilator, including a humidifier canister body with a hollow inner cavity. The top of the humidifier canister body is integrally equipped with an air inlet pipe, an exhaust pipe, and a liquid replenishment pipe that communicate with the inner cavity of the humidifier canister. One end of the air inlet pipe extends into the inner cavity of the humidifier canister body, and the portion of the air inlet pipe extending into the inner cavity of the humidifier canister body is provided with a deceleration component to slow down the gas flow rate.

[0006] To achieve the above objectives, humidifying liquid is poured into the inner cavity of the humidification tank and heated by the ventilator. Gas enters the inner cavity of the humidification tank through the inlet tube and, together with the water vapor generated after heating inside the humidification tank, is discharged through the exhaust tube and delivered to the patient's airway, reducing irritation and damage to the airway. By incorporating a speed-reducing component, the possibility of splashing caused by excessively fast-flowing gas directly contacting the humidifying liquid is reduced, thereby reducing the likelihood of splashed liquid entering the patient's airway through the exhaust tube, thus improving the safety and reliability of the device.

[0007] Furthermore, the speed reduction assembly includes a speed reduction box disposed in the inner cavity of the humidification tank body. The speed reduction box and the portion of the air intake pipe extending into the inner cavity of the humidification tank body are detachably and fixedly connected by a connecting assembly. The inner cavity of the speed reduction box is hollow, and the inner cavity of the speed reduction box is integrally provided with a first wind baffle, a second wind baffle, and a third wind baffle. The first wind baffle, the second wind baffle, and the third wind baffle are evenly arranged in the vertical direction. A first air intake groove is formed on the first wind baffle, a second air intake groove is formed on the second wind baffle, and a third air intake groove is formed on the third wind baffle. The first air intake groove, the second air intake groove, and the third air intake groove are staggered.

[0008] With the above technical solution, the gas entering the deceleration box is blocked by the first baffle, the second baffle and the third baffle, and can only be discharged through the first air intake channel, the second air intake channel and the third air intake channel. The gas speed discharged from the deceleration box is greatly reduced, reducing the possibility of excessive wind speed affecting the humidified liquid, and at the same time reducing the possibility of noise generated by the gas with a relatively high wind speed.

[0009] Furthermore, the connecting assembly includes a connecting pipe integrated with the middle position of the top of the deceleration box. The connecting pipe communicates with the inner cavity of the deceleration box. The connecting pipe is sleeved on the part of the air intake pipe that extends into the inner cavity of the humidification tank and is threadedly fixed to the air intake pipe.

[0010] The above technical solution, through the cooperation of the connecting pipe and the air inlet pipe, achieves a speed reduction effect while facilitating the disassembly and assembly of the speed reduction box, thereby making it easier to clean the speed reduction box and improving the hygiene of the device.

[0011] Furthermore, the speed reduction box is composed of an upper box body, a middle box body, and a lower box body. The connecting pipe and the first wind baffle are fixed on the upper box body, the second wind baffle is fixed on the middle box body, and the third wind baffle is fixed on the lower box body. The upper box body, the middle box body, and the lower box body are detachably and fixedly connected.

[0012] Through the above technical solution, the upper box, middle box and lower box are detachably fixed to form a speed reduction box. While not affecting the use of the speed reduction box, it is convenient to clean the upper box, middle box and lower box, further improving the hygiene of the device.

[0013] Furthermore, the humidification tank body has an integrated annular support plate located below the deceleration box. A partition plate is placed on the annular support plate and is detachably and fixedly connected to the annular support plate. Several ventilation holes are evenly opened on the partition plate.

[0014] The above technical solution uses an annular support plate to support the partition, and the partition with several vent holes further reduces the possibility of humidified liquid splashing into the exhaust pipe.

[0015] Furthermore, the replenishment pipe is equipped with a sealing assembly that cooperates with the humidification liquid to seal the replenishment pipe within the inner cavity of the humidification tank.

[0016] The above technical solution, by setting a sealing component, will seal the replenishment pipe when the humidifying liquid is above a suitable height, preventing the humidifying liquid from entering the humidification tank body. When the humidifying liquid is below a suitable height, the replenishment pipe will not be sealed, allowing the humidifying liquid to enter the humidification tank body, thus serving as a replenishment function.

[0017] Furthermore, the sealing assembly includes a sealing rod that penetrates the partition and is slidably connected to the partition. The sealing rod is located in the middle of the partition. A float is fixed to the bottom of the sealing rod that extends out of the partition. The sealing rod extends out of the top of the partition and enters the replenishment pipe and is slidably connected to the replenishment pipe. An inlet pipe that communicates with the inner cavity of the replenishment pipe is integrally formed on the replenishment pipe. The end of the inlet pipe away from the replenishment pipe enters the inner cavity of the humidification tank body and is fixed to the humidification tank body. The part of the inlet pipe that enters the inner cavity of the humidification tank body penetrates the partition.

[0018] With the above technical solution, the float moves with the height of the humidifying liquid. When the height of the humidifying liquid is at a suitable position, the float is located on the surface of the humidifying liquid, and the sealing rod, which is integrated with the float, moves up and closes the water inlet pipe. At this time, the humidifying liquid entering the replenishment pipe cannot enter the water inlet pipe. When the height of the humidifying liquid is lower than the suitable position, the sealing rod moves down and connects the water inlet pipe with the replenishment pipe. The humidifying liquid entering the replenishment pipe will enter the water inlet pipe and then enter the humidification tank body, thus replenishing the humidifying liquid.

[0019] In summary, the humidifier canister for this ventilator has the following beneficial effects:

[0020] (1) The ventilator uses a humidifier canister. Humidifying liquid is poured into the inner cavity of the humidifier canister and heated by the action of the ventilator. Gas enters the inner cavity of the humidifier canister through the inlet pipe and is discharged through the exhaust pipe along with the water vapor generated after heating in the humidifier canister and delivered to the patient's airway, reducing irritation and damage to the airway. By setting a speed reduction component, the possibility of splashing caused by the gas with too fast flow rate directly contacting the humidifying liquid is reduced, thereby reducing the possibility of splashed liquid entering the patient's airway through the exhaust pipe, improving the safety and reliability of the device.

[0021] (2) The humidifier tank of the ventilator is supported by a partition plate with an annular support plate, and the partition plate with several ventilation holes further reduces the possibility of humidifying liquid splashing into the exhaust pipe.

[0022] (3) The humidifier uses a float that moves with the height of the humidifying liquid. When the height of the humidifying liquid is at the appropriate position, the float is located on the surface of the humidifying liquid. The sealing rod, which is integrated with the float, moves up and closes the water inlet pipe. At this time, the humidifying liquid entering the replenishment pipe cannot enter the water inlet pipe. When the height of the humidifying liquid is lower than the appropriate position, the sealing rod moves down and connects the water inlet pipe with the replenishment pipe. The humidifying liquid entering the replenishment pipe will enter the water inlet pipe and enter the humidifier body, thus replenishing the humidifying liquid. Attached Figure Description

[0023] The present invention will be further described and explained below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the preferred embodiment of this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the humidification tank body of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0027] Figure 4 This is a structural schematic diagram illustrating the second wind deflector of this utility model;

[0028] Figure 5 This is a structural schematic diagram of the first windbreak plate of this utility model;

[0029] Figure 6 This is a cross-sectional view of the fluid replenishment tube of this utility model.

[0030] Reference numerals in the attached drawings: 1. Humidification tank body; 101. Upper tank body; 102. Lower tank body; 2. Air inlet pipe; 3. Exhaust pipe; 4. Liquid replenishment pipe; 5. Speed ​​reduction assembly; 501. Speed ​​reduction box; 501-1. Upper box body; 501-2. Middle box body; 501-3. Lower box body; 502. First baffle plate; 503. Second baffle plate; 504. Third baffle plate; 505. First air intake channel; 506. Second air intake channel; 507. Third air intake channel; 508. Connecting pipe; 6. Annular support plate; 7. Partition plate; 8. Vent hole; 9. Sealing assembly; 901. Sealing rod; 902. Float ball; 903. Water inlet pipe; 10. Guide pipe. Detailed Implementation

[0031] The technical solution of this utility model will be more clearly and completely explained below with reference to the accompanying drawings and through the description of the preferred embodiments of this utility model.

[0032] like Figure 1-6As shown, the preferred embodiment of this utility model provides a humidifier canister for a ventilator, comprising a hollow humidifier canister body 1. The humidifier canister body 1 consists of an upper canister 101 and a lower canister 102. The upper canister 101 has a hollow interior and an opening facing the lower canister 102. The lower canister 102 has a hollow interior and an opening facing the upper canister 101. The upper canister 101 and the lower canister 102 are detachably and fixedly connected. The connection is sealed, preventing gas and humidifying liquid from overflowing from the connection between the upper canister 101 and the lower canister 102, thus facilitating the cleaning of the humidifier canister body 1.

[0033] like Figure 1 and Figure 2 and Figure 3 The top of the upper tank 101 is integrated with an air inlet pipe 2, an exhaust pipe 3, and a rehydration pipe 4 that are connected to the inner cavity of the humidification tank body 1. The end of the air inlet pipe 2 away from the humidification tank body 1 is connected to the gas delivery pipeline, and the end of the exhaust pipe 3 away from the humidification tank body 1 is connected to the breathing pipeline. The rehydration pipe 4 is located in the middle of the humidification tank body 1. The air inlet pipe 2 and the exhaust pipe 3 are located on both sides of the rehydration pipe 4. Humidification liquid is poured into the inner cavity of the humidification tank body 1 and heated by the ventilator. Gas enters the inner cavity of the humidification tank body 1 through the air inlet pipe 2 and is discharged through the exhaust pipe 3 along with the water vapor generated after heating in the humidification tank body 1, and is delivered to the patient's respiratory tract, reducing irritation and damage to the respiratory tract.

[0034] like Figure 1 and Figure 2 and Figure 3 The gas flow rate entering the inner cavity of the humidifier body 1 through the air inlet pipe 2 is relatively fast. In order to reduce the possibility that the humidifier liquid splashes and enters the exhaust pipe 3 due to the contact between the gas with the humidifier liquid, one end of the air inlet pipe 2 extends into the inner cavity of the humidifier body 1. The part of the air inlet pipe 2 that extends into the inner cavity of the humidifier body 1 is provided with a speed-reducing component 5 to slow down the gas flow rate. By setting the speed-reducing component 5, the possibility of the gas with the humidifier liquid coming into direct contact with the humidifier liquid due to the excessively fast flow rate is reduced, thereby reducing the possibility of the splashed liquid entering the patient's respiratory tract through the exhaust pipe 3, and improving the safety and reliability of the device.

[0035] like Figure 2 and Figure 3 and Figure 4 and Figure 5The speed reduction assembly 5 includes a speed reduction box 501 disposed in the inner cavity of the humidification tank body 1. The speed reduction box 501 and the part of the air intake pipe 2 extending into the inner cavity of the humidification tank body 1 are detachably and fixedly connected by a connecting assembly. The inner cavity of the speed reduction box 501 is hollow, with an opening at the bottom and communicating with the inner cavity of the humidification tank body 1. The inner cavity of the speed reduction box 501 is integrally provided with a first wind baffle 502, a second wind baffle 503 and a third wind baffle 504. The first wind baffle 502, the second wind baffle 503 and the third wind baffle 504 are evenly arranged in the vertical direction. A first air duct 505 passes through the first wind baffle 502, a second air duct 506 passes through the second wind baffle 503 and a third air duct 507 passes through the third wind baffle 504. The first air duct 505, the second air duct 506 and the third air duct 507 are staggered.

[0036] like Figure 2 and Figure 3 and Figure 4 and Figure 5 The gas entering the deceleration box 501 is blocked by the first baffle 502, the second baffle 503 and the third baffle 504, and can only be discharged through the first air intake channel 505, the second air intake channel 506 and the third air intake channel 507. The gas speed discharged from the deceleration box 501 is greatly reduced, which reduces the possibility of excessive wind speed affecting the humidified liquid, and at the same time reduces the possibility of noise generated by the gas with a relatively high wind speed.

[0037] like Figure 4 The connecting component includes a connecting pipe 508 integrated with the top center of the speed reduction box 501. The connecting pipe 508 communicates with the inner cavity of the speed reduction box 501. The connecting pipe 508 is sleeved on the part of the air inlet pipe 2 that extends into the inner cavity of the humidification tank body 1 and is threadedly fixed to the air inlet pipe 2. Through the cooperation of the connecting pipe 508 and the air inlet pipe 2, the speed reduction effect is achieved, while facilitating the disassembly and assembly of the speed reduction box 501, thereby facilitating the cleaning of the speed reduction box 501 and improving the hygiene of the device.

[0038] like Figure 2 and Figure 3 and Figure 4 and Figure 5To facilitate cleaning of the speed reduction box 501, the speed reduction box 501 is composed of an upper box body 501-1, a middle box body 501-2, and a lower box body 501-3. The connecting pipe 508 and the first baffle plate 502 are fixed to the upper box body 501-1, the second baffle plate 503 is fixed to the middle box body 501-2, and the third baffle plate 504 is fixed to the lower box body 501-3. The upper box body 501-1, the middle box body 501-2, and the lower box body 501-3 are detachably and fixedly connected. The detachable and fixed assembly of the upper box body 501-1, the middle box body 501-2, and the lower box body 501-3 does not affect the use of the speed reduction box 501, while facilitating the cleaning of the upper box body 501-1, the middle box body 501-2, and the lower box body 501-3, further improving the hygiene of the device.

[0039] like Figure 2 and Figure 3 The humidification tank body 1 has an integrated annular support plate 6 located below the speed reduction box 501. A partition 7 is placed on the annular support plate 6 and is detachably fixedly connected to the annular support plate 6. Several vent holes 8 are evenly opened on the partition 7. The partition 7 is supported by the annular support plate 6. The partition 7 with several vent holes 8 further reduces the possibility of humidification liquid splashing into the exhaust pipe 3.

[0040] like Figure 2 and Figure 3 and Figure 6 The replenishment pipe 4 is equipped with a sealing component 9 that cooperates with the inner cavity of the humidification tank body 1 to seal the replenishment pipe 4. By setting the sealing component 9, when the humidification liquid is higher than the appropriate height, the replenishment pipe 4 is sealed and the humidification liquid will no longer enter the humidification tank body 1. When the humidification liquid is lower than the appropriate height, the replenishment pipe 4 is not sealed and the humidification liquid will enter the humidification tank body 1, thus playing the role of replenishment.

[0041] like Figure 2 and Figure 3 and Figure 6 The sealing assembly 9 includes a sealing rod 901 that penetrates the partition 7 and is slidably connected to the partition 7. The sealing rod 901 is located in the middle of the partition 7. A guide tube 10 is integrated in the middle of the partition 7. The sealing rod 901 penetrates the guide tube 10 and is slidably connected to the guide tube 10. The guide tube 10 guides the movement of the sealing rod 901. A float ball 902 is fixed to the bottom of the sealing rod 901 that extends out of the guide tube 10. The top of the sealing rod 901 that extends out of the guide tube 10 enters the replenishment tube 4 and is slidably connected to the replenishment tube 4. A water inlet pipe 903 that communicates with the inner cavity of the replenishment tube 4 is integrated on the replenishment tube 4. The end of the water inlet pipe 903 that is away from the replenishment tube 4 enters the inner cavity of the humidification tank body 1 and is fixed to the humidification tank body 1. The part of the water inlet pipe 903 that enters the inner cavity of the humidification tank body 1 penetrates the partition 7.

[0042] like Figure 2 and Figure 3 and Figure 6 The float 902 moves with the height of the humidifying liquid. When the height of the humidifying liquid is at the appropriate position, the float 902 is located on the surface of the humidifying liquid. The sealing rod 901, which is integrated with the float 902, moves upward and closes the water inlet pipe 903. At this time, the humidifying liquid entering the replenishment pipe 4 cannot enter the water inlet pipe 903. When the height of the humidifying liquid is lower than the appropriate position, the sealing rod 901 moves downward and connects the water inlet pipe 903 with the replenishment pipe 4. The humidifying liquid entering the replenishment pipe 4 will enter the water inlet pipe 903 and enter the humidification tank body, thus replenishing the humidifying liquid.

[0043] When in use, connect the power supply, turn on the switch, pour the appropriate level of humidifying liquid into the inner cavity of the breathing tank body, install and fix the upper tank 101 and the lower tank 102, the air supply pipe of the ventilator is connected to the air inlet pipe 2, the exhaust pipe 3 is connected to the breathing pipe, and the replenishment pipe 4 is connected to the replenishment bag for replenishing humidifying liquid through the pipeline. At this time, the humidifying liquid level is appropriate, the float 902 is located on the surface of the humidifying liquid, and the sealing rod 901, which is integrated with the float 902, is inside the replenishment pipe 4 and seals the water inlet pipe 903. At this time, the humidifying liquid entering the replenishment pipe 4 will not enter the humidifying tank body 1 through the water inlet pipe 903.

[0044] The humidifying liquid inside the humidification tank 1 is heated by the ventilator and evaporates. The gas entering the inlet pipe 2 enters the deceleration box 501. Since the diameter of the deceleration box 501 is larger than the diameter of the inlet pipe 2, the gas flow rate is reduced for the first time. The gas entering the deceleration box 501 passes through the first air intake channel 505, the second air intake channel 506 and the third air intake channel 507 in sequence. Due to the staggered arrangement of the first air intake channel 505, the second air intake channel 506 and the third air intake channel 507, the gas entering the deceleration box 501 is decelerated for the second time, and the noise generated by the fast gas is reduced.

[0045] The gas passing through the third air duct 507 exits the deceleration box 501 and enters the inner cavity of the humidification tank body 1. The diameter of the inner cavity of the humidification tank body 1 is larger than the diameter of the deceleration box 501, so the gas achieves a third deceleration.

[0046] The partition 7 reduces the possibility of the humidifying liquid splashing due to the gas coming into contact with the humidifying liquid through the vent 8. The gas is discharged with the steam through the exhaust pipe 3 and delivered to the patient's respiratory tract, reducing irritation and damage to the respiratory tract.

[0047] After the device has been used for a period of time, the water level of the humidifying liquid drops, which will cause the float 902 located on the surface of the humidifying liquid to drop, and in turn, cause the sealing rod 901, which is integrated with the float 902, to move down. The sealing rod 901 moves down and makes the water inlet pipe 903 connected to the inner cavity of the replenishment pipe 4. The humidifying liquid entering the replenishment pipe 4 enters the inner cavity of the humidifying tank body 1 through the water inlet pipe 903, which plays the role of replenishing the humidifying liquid.

[0048] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications, substitutions, and improvements made by those skilled in the art to the technical solutions of the present invention based on the provided description and drawings, without departing from the design concept and spirit of the present invention, should all fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. A humidifier canister for a ventilator, characterized in that, The humidifier body (1) includes a hollow humidifier body. The top of the humidifier body (1) is integrally equipped with an air inlet pipe (2), an exhaust pipe (3) and a liquid replenishment pipe (4) that communicate with the inner cavity of the humidifier body. One end of the air inlet pipe (2) extends into the inner cavity of the humidifier body (1). The part of the air inlet pipe (2) that extends into the inner cavity of the humidifier body (1) is provided with a speed reduction component (5) to slow down the gas flow rate. The speed reduction assembly (5) includes a speed reduction box (501) disposed in the inner cavity of the humidification tank body (1). The speed reduction box (501) and the portion of the air intake pipe (2) extending into the inner cavity of the humidification tank body (1) are detachably and fixedly connected by a connecting assembly. The inner cavity of the speed reduction box (501) is hollow. The inner cavity of the speed reduction box (501) is integrally equipped with a first wind deflector (502), a second wind deflector (503), and a third wind deflector (504). The first wind deflector (502) 02) The second wind deflector (503) and the third wind deflector (504) are evenly arranged in the vertical direction. The first wind deflector (502) is provided with a first air duct (505), the second wind deflector (503) is provided with a second air duct (506), and the third wind deflector (504) is provided with a third air duct (507). The first air duct (505), the second air duct (506) and the third air duct (507) are arranged in a staggered manner.

2. A humidifier canister for a ventilator according to claim 1, characterized in that, The connecting assembly includes a connecting pipe (508) integrated with the top center of the speed reduction box (501). The connecting pipe (508) communicates with the inner cavity of the speed reduction box (501). The connecting pipe (508) is sleeved on the part of the air inlet pipe (2) that extends into the inner cavity of the humidification tank body (1) and is threadedly fixed to the air inlet pipe (2).

3. A humidifier for a ventilator according to claim 2, characterized in that, The speed reduction box (501) consists of an upper box body (501-1), a middle box body (501-2), and a lower box body (501-3). The connecting pipe (508) and the first wind baffle (502) are fixed on the upper box body (501-1), the second wind baffle (503) is fixed on the middle box body (501-2), and the third wind baffle (504) is fixed on the lower box body (501-3). The upper box body (501-1), the middle box body (501-2), and the lower box body (501-3) are detachably fixedly connected.

4. A humidifier canister for a ventilator according to claim 1, characterized in that, The humidification tank body (1) has an integrated annular support plate (6) located below the deceleration box (501) in its inner cavity. A partition plate (7) is placed on the annular support plate (6) and is detachably fixedly connected to the annular support plate (6). Several ventilation holes (8) are evenly opened on the partition plate (7).

5. A humidifier canister for a ventilator according to claim 4, characterized in that, The replenishment pipe (4) is provided with a sealing assembly (9) that is compatible with the inner cavity of the humidification tank body (1) to seal the replenishment pipe (4) for humidification liquid.

6. A humidifier for a ventilator according to claim 5, characterized in that, The sealing assembly (9) includes a sealing rod (901) that passes through the partition (7) and is slidably connected to the partition (7). The sealing rod (901) is located in the middle of the partition (7). A float (902) is fixed to the bottom of the sealing rod (901) that passes through the partition (7). The top of the sealing rod (901) passes through the partition (7) and enters the replenishment pipe (4) and is slidably connected to the replenishment pipe (4). An inlet pipe (903) that communicates with the inner cavity of the replenishment pipe (4) is integrally formed on the replenishment pipe (4). The end of the inlet pipe (903) away from the replenishment pipe (4) enters the inner cavity of the humidification tank body (1) and is fixed to the humidification tank body (1). The part of the inlet pipe (903) that enters the inner cavity of the humidification tank body (1) passes through the partition (7).

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