Gas heating and humidifying device for clinical severe breathing machine

Abstract

The invention discloses a gas heating and humidifying device for a clinical severe breathing machine, and relates to the technical field of medical breathing machines, a rack is arranged above a water bath pool, a heating mechanism is arranged on the rack, the heating mechanism is arranged in the water bath pool, and an adjusting mechanism is arranged on the rack; a gas and water mist mixing device is arranged, so that dry gas is humidified, then mixed oxygen is fed into a gas flow guide pipe, oxygen in the gas flow guide pipe is heated through water bath heating, and the temperature rise degree of the gas can be adjusted by adjusting the length of the gas flow guide pipe immersed in warm water.

Description

Technical Field

[0001] The invention relates to the technical field of medical ventilators, and in particular to a gas heating and humidifying device for a clinical critical care ventilator. Background Art

[0002] A ventilator is an auxiliary device used to assist patients in breathing and maintain normal breathing. Compressed gas is used to store oxygen. This requires that the compressed gas be restored to normal pressure when using breathable oxygen. This makes the temperature of the oxygen restored to normal pressure extremely low and the gas dry. Long-term breathing of this oxygen will cause discomfort to the user's respiratory system. There is currently a ventilator with a heating driving function, which uses a thermistor unit to heat the gas and then directly passes the gas through water to humidify it. A ventilator with this structure is likely to cause the gas heating temperature to be too high, and the gas will have a burnt smell generated by the heating chamber, and it is easy to bring out water droplets when the gas is humidified through water. For this reason, the oxygen used in the ventilator needs to be heated and humidified at normal pressure. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a gas heating and humidification device for a clinical intensive care ventilator, which humidifies the dry gas by setting up a gas and water mist mixing device, then sends the mixed oxygen into the airflow duct, heats the oxygen in the airflow duct by water bath heating, and can adjust the degree of gas temperature increase by adjusting the length of the airflow duct immersed in warm water.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The utility model comprises a water bath, a rack, wherein the rack is arranged above the water bath, and further comprises: A heating mechanism, wherein the heating mechanism is arranged on the frame and the heating mechanism is arranged in the water bath; The adjusting mechanism is arranged on the frame.

[0005] Preferably, the heating mechanism comprises: An immersion cylinder, wherein the immersion cylinder is arranged inside the frame, and the immersion cylinder is arranged inside the water bath; A floating cylinder, wherein the floating cylinder is arranged inside the frame and above the submerged cylinder; An air guide tube, wherein the air guide tube is wound around the immersion tube, and the upper section of the air guide tube is wound around the floating tube, the lower end of the air guide tube is inserted and fixed on the immersion tube and is connected with the inner cavity of the immersion tube, and the upper end of the air guide tube is inserted and fixed on the floating tube and is connected with the inner cavity of the floating tube; A flow guide component is arranged on a frame.

[0006] Preferably, the flow guide component comprises: The lower connecting sleeves are two and are symmetrically arranged on the front and rear side plates of the frame through bearings. The front and rear lower connecting sleeves are respectively inserted and fixed on the front and rear end plates of the immersion cylinder and are connected with the inner cavity of the immersion cylinder. The upper connecting sleeves are two and are symmetrically arranged on the front and rear side plates of the frame through bearings. The front and rear upper connecting sleeves are respectively inserted and fixed on the front and rear end plates of the floating tube and are connected with the inner cavity of the floating tube. An air intake pipe, wherein the air intake pipe is screwed through one of the lower connecting sleeves via a sealing bearing; An atomizing tube, wherein the atomizing tube is screwed through the other lower connecting sleeve via a sealing bearing; An air outlet pipe is screwed through one of the upper connecting sleeves via a sealing bearing.

[0007] Preferably, the adjustment mechanism comprises: A driving sprocket, wherein the driving sprocket is sleeved and fixed on the upper connecting sleeve; A driven sprocket, wherein the driven sprocket is sleeved and fixed on the lower connecting sleeve, and the driving sprocket and the driven sprocket are connected by a closed chain transmission; An adjusting shaft, wherein the adjusting shaft is rotatably mounted on the frame via a bearing; An active bevel gear, wherein the active bevel gear is sleeved and fixed on the adjusting shaft; A driven bevel gear, wherein the driven bevel gear is fixedly arranged on an upper connecting sleeve away from the air outlet pipe, and the driven bevel gear and the driving bevel gear are meshed with each other; A limit assembly is arranged on the adjusting shaft.

[0008] Preferably, the limiting component comprises: Elastic rods, there are two of them, the upper end of the adjusting shaft is opened with a mounting cavity, the elastic rods are inserted into the mounting cavity, and the lower ends of the elastic rods are fixedly arranged on the lower end of the inner wall of the mounting cavity; The latching teeth are fixedly arranged on the elastic rod, and a waist-shaped hole is opened on the side wall of the adjusting shaft, and the latching teeth are arranged through the waist-shaped hole; The end face ratchet is fixedly arranged on the frame, and the latch teeth are meshed with the end face ratchet.

[0009] Preferably, a guide rod is fixedly arranged on the frame, a lifting frame is arranged on the side of the frame, and the lifting frame is slidably arranged on the guide rod, and a back clamp is fixedly arranged on the lifting frame.

[0010] Preferably, concave covers are embedded and fixed on the side walls of the immersion cylinder at equal angles.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The device is provided with a linkage-rotating immersion cylinder and a floating cylinder, and then the air guide tube is wound on them, so as to adjust the length of the air guide tube wound on the immersion cylinder and the floating cylinder, and heat the air guide tube on the immersion cylinder by heating the water area, that is, to heat the low-temperature oxygen; 2. This device realizes linkage transmission between the immersion cylinder and the floating cylinder by setting a driving sprocket and a driving chain, realizes active drive of the upper connecting sleeve and the floating cylinder by setting an adjusting shaft and a driving bevel gear and a driven bevel gear, and realizes limit locking of the adjusting shaft by setting an elastic rod with a latching tooth in the adjusting shaft, thereby realizing adjustment of the rotation of the immersion cylinder and the floating cylinder to adjust the length of the air guide tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 yes Figure 1 Right front side view.

[0014] Figure 3 It is a structural schematic diagram of the frame and the heating mechanism in the present invention.

[0015] Figure 4 It is a structural schematic diagram of the immersion cylinder in the present invention.

[0016] Figure 5 It is a structural schematic diagram of the floating tube in the present invention.

[0017] Figure 6 It is a structural schematic diagram of the frame and the adjusting mechanism in the present invention.

[0018] Figure 7 It is a structural schematic diagram of the adjusting shaft and the elastic rod in the present invention.

[0019] Description of reference numerals: Water bath 1, frame 2, heating mechanism 3, immersion cylinder 3-1, floating cylinder 3-2, air guide tube 3-3, guide assembly 4, lower connecting sleeve 4-1, upper connecting sleeve 4-2, air inlet pipe 4-3, atomizing pipe 4-4, air outlet pipe 4-5, adjusting mechanism 5, driving sprocket 5-1, driven sprocket 5-2, adjusting shaft 5-3, driving bevel gear 5-4, driven bevel gear 5-5, limit assembly 6, elastic rod 6-1, installation cavity 6-2, latching tooth 6-3, waist-shaped hole 6-4, end face ratchet 6-5, guide rod 7, lifting frame 8, back clamp 9, concave cover 10. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0021] like Figure 1-7 As shown, this specific implementation adopts the following technical solutions: It comprises a water bath 1 and a rack 2, wherein the rack 2 is arranged above the water bath 1, and further comprises: A guide rod 7, wherein the guide rod 7 is fixedly arranged on the frame 2; A lifting frame 8, wherein the lifting frame 8 is movably sleeved on the guide rod 7; The back clip 9 is fixedly arranged on the lifting frame 8, and the back clip 9 A heating mechanism 3, wherein the heating mechanism 3 is arranged on the frame 2, and the heating mechanism 3 is arranged in the water bath 1; An adjusting mechanism 5, wherein the adjusting mechanism 5 is arranged on the frame 2; The heating mechanism 3 comprises: An immersion cylinder 3-1, wherein the immersion cylinder 3-1 is arranged inside the frame 2, and the immersion cylinder 3-1 is arranged inside the water bath 1; A floating cylinder 3-2, wherein the floating cylinder 3-2 is arranged inside the frame 2, and the floating cylinder 3-2 is arranged above the immersion cylinder 3-1; An air guide tube 3-3, wherein the air guide tube 3-3 is wound around the immersion tube 3-1, and the upper section of the air guide tube 3-3 is wound around the floating tube 3-2, the lower end of the air guide tube 3-3 is inserted and fixed on the immersion tube 3-1 and is connected with the inner cavity of the immersion tube 3-1, and the upper end of the air guide tube 3-3 is inserted and fixed on the floating tube 3-2 and is connected with the inner cavity of the floating tube 3-2; The inner concave cover 10 is a plurality of inner concave covers 10, and the inner concave covers 10 are embedded and fixed on the side wall of the immersion cylinder 3-1; A flow guide component 4, wherein the flow guide component 4 is arranged on the frame 2; The flow guide component 4 comprises: The lower connecting sleeve 4-1 is two and is symmetrically arranged on the front and rear side plates of the frame 2 through bearings. The front and rear lower connecting sleeves 4-1 are respectively inserted and fixed on the front and rear end plates of the immersion cylinder 3-1 and are connected with the inner cavity of the immersion cylinder 3-1. The upper connecting sleeve 4-2 is two and is symmetrically arranged on the front and rear side plates of the frame 2 through bearings. The front and rear upper connecting sleeves 4-2 are respectively inserted and fixed on the front and rear end plates of the floating cylinder 3-2 and are connected to the inner cavity of the floating cylinder 3-2. An air intake pipe 4-3, wherein the air intake pipe 4-3 is screwed through one of the lower connecting sleeves 4-1 via a sealing bearing; Atomizing pipe 4-4, the atomizing pipe 4-4 is screwed through another lower connecting sleeve 4-1 through a sealing bearing; An air outlet pipe 4-5, wherein the air outlet pipe 4-5 is screwed through one of the upper connecting sleeves 4-2 via a sealing bearing; The adjustment mechanism 5 comprises: A driving sprocket 5-1, wherein the driving sprocket 5-1 is sleeved and fixed on the upper connecting sleeve 4-2; A driven sprocket 5-2, wherein the driven sprocket 5-2 is sleeved and fixed on the lower connecting sleeve 4-1, and the driving sprocket 5-1 and the driven sprocket 5-2 are connected by a closed chain transmission; An adjusting shaft 5-3, wherein the adjusting shaft 5-3 is rotatably mounted on the frame 2 via a bearing; Active bevel gear 5-4, the active bevel gear 5-4 is sleeved and fixed on the adjusting shaft 5-3; A driven bevel gear 5-5, wherein the driven bevel gear 5-5 is fixedly arranged on the upper connecting sleeve 4-2 away from the side of the air outlet pipe 4-5, and the driven bevel gear 5-5 is meshed with the driving bevel gear 5-4; A limit assembly 6, wherein the limit assembly 6 is arranged on the adjustment shaft 5-3; The limiting component 6 comprises: Elastic rods 6-1, there are two elastic rods 6-1, the upper end opening is provided with a mounting cavity 6-2 on the adjusting shaft 5-3, the elastic rods 6-1 are inserted into the mounting cavity 6-2, and the lower ends of the elastic rods 6-1 are fixedly arranged at the lower end of the inner wall of the mounting cavity 6-2; The latching tooth 6-3 is fixedly arranged on the elastic rod 6-1, and a waist-shaped hole 6-4 is opened on the side wall of the adjusting shaft 5-3, and the latching tooth 6-3 passes through the waist-shaped hole 6-4; The end face ratchet 6-5 is fixedly arranged on the frame 2, and the latching teeth 6-3 are meshed with the end face ratchet 6-5.

[0022] When using the device, add warm water of suitable temperature into the water bath 1 and keep the temperature constant, then clamp the device on the water bath 1 through the back clip 9, immerse the immersion tube 3-1 in the warm water, connect the air inlet pipe 4-3 to the external oxygen delivery bottle, connect the air outlet pipe 4-5 to the external respirator, connect the atomization pipe 4-4 to the external humidification atomization device, and the external low-temperature oxygen is sent into the immersion tube 3-1 through the air inlet pipe 4-3, and then the low-temperature oxygen enters the air guide pipe 3-3 from the immersion tube 3-1, and is sent into the floating tube 3-2 through the air guide pipe 3-3, and then from the floating tube 3-2. The low-temperature oxygen in the air guide tube 3-3 is heated by warm water when the low-temperature oxygen in the air guide tube 3-3 is immersed in the immersion cylinder 3-1. The humidification atomization device sends water mist into the immersion cylinder 3-1 and mixes with the oxygen entering the immersion cylinder 3-1 before being discharged, thus realizing the humidification of the dry oxygen. By rotating the adjustment shaft 5-3, the adjustment shaft 5-3 drives the upper connecting sleeve 4-2 to rotate through the meshing active bevel gear 5-4 and the driven bevel gear 5-5, that is, drives the floating cylinder 3-2 to rotate, and the upper connecting sleeve 4-2 is driven to rotate. The connecting sleeve 4-2 drives the lower connecting sleeve 4-1 to rotate through the driving sprocket 5-1, the driven sprocket 5-2 and the chain transmission, thereby driving the immersion cylinder 3-1 to rotate, and then the floating cylinder 3-2 and the immersion cylinder 3-1 rotate, so as to release the air pipe 3-3 wound on the immersion cylinder 3-1 and wind it around the floating cylinder 3-2, or reversely rotate the adjusting shaft 5-3 to wind the air pipe 3-3 on the floating cylinder 3-2 onto the immersion cylinder 3-1. When the length of the air pipe 3-3 wound on the immersion cylinder 3-1 increases, the length of the air pipe 3-3 entering the warm water increases, that is, the low-temperature oxygen As the heating time increases, the temperature of the low-temperature oxygen increases to a greater extent, or as the air guide tube 3-3 wrapped around the immersion tube 3-1 is shortened, the temperature of the heated low-temperature oxygen decreases, thereby achieving adjustment of the heating degree of the low-temperature oxygen. When the adjusting shaft 5-3 is rotated, the elastic rod 6-1 is pulled closed, and the elastic rod 6-1 drives the latch tooth 6-3 to retract so that the latch tooth 6-3 is disengaged from the end face ratchet 6-5, thereby achieving free rotation of the adjusting shaft 5-3. When the elastic rod 6-1 is loosened, the elastic rod 6-1 pushes the latch tooth 6-3 to clamp the end face ratchet 6-5 to lock the adjusting shaft 5-3.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. The device is provided with an immersion cylinder 3-1 and a floating cylinder 3-2 which rotate in linkage, and then the air guide tube 3-3 is wound thereon, so as to adjust the length of the air guide tube 3-3 wound on the immersion cylinder 3-1 and the floating cylinder 3-2, so as to heat the air guide tube 3-3 on the immersion cylinder 3-1 by heating the water area, that is, to heat the low-temperature oxygen; 2. This device realizes linkage transmission between the immersion cylinder 3-1 and the floating cylinder 3-2 by setting a driving sprocket 5-1 and a driving chain, realizes active driving of the upper connecting sleeve 4-2 and the floating cylinder 3-2 by setting an adjusting shaft 5-3 and a driving bevel gear 5-4 and a driven bevel gear 5-5, and realizes the active driving of the upper connecting sleeve 4-2 and the floating cylinder 3-2 by setting an elastic rod 6-1 with a latching tooth 6-3 in the adjusting shaft 5-3, thereby realizing the limit locking of the adjusting shaft 5-3, thereby realizing adjusting the rotation of the immersion cylinder 3-1 and the floating cylinder 3-2 to adjust the length of the air guide tube 3-3.

[0024] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas heating and humidifying device for a clinical critical care ventilator, comprising a water bath (1) and a frame (2), wherein the frame (2) is arranged above the water bath (1); characterized in that: It also contains: A heating mechanism (3), wherein the heating mechanism (3) is arranged on the frame (2), and the heating mechanism (3) is arranged in the water bath (1); An adjusting mechanism (5), wherein the adjusting mechanism (5) is arranged on the frame (2).

2. A gas heating and humidifying device for a clinical critical care ventilator according to claim 1, characterized in that: The heating mechanism (3) comprises: An immersion cylinder (3-1), wherein the immersion cylinder (3-1) is arranged inside the frame (2), and the immersion cylinder (3-1) is arranged inside the water bath (1); A floating cylinder (3-2), wherein the floating cylinder (3-2) is arranged inside the frame (2), and the floating cylinder (3-2) is arranged above the immersion cylinder (3-1); An air guide tube (3-3), wherein the air guide tube (3-3) is wound around the immersion tube (3-1), and the upper section of the air guide tube (3-3) is wound around the floating tube (3-2), the lower end of the air guide tube (3-3) is inserted and fixed on the immersion tube (3-1) and is arranged in communication with the inner cavity of the immersion tube (3-1), and the upper end of the air guide tube (3-3) is inserted and fixed on the floating tube (3-2) and is arranged in communication with the inner cavity of the floating tube (3-2); A flow guide component (4), wherein the flow guide component (4) is arranged on the frame (2).

3. A gas heating and humidifying device for a clinical critical care ventilator according to claim 2, characterized in that: The flow guide component (4) comprises: The lower connecting sleeves (4-1) are two and are symmetrically arranged front and rearward and are respectively screwed on the front and rear side plates of the frame (2) through bearings. The front and rear lower connecting sleeves (4-1) are respectively inserted and fixed on the front and rear end plates of the immersion cylinder (3-1) and are arranged to penetrate the inner cavity of the immersion cylinder (3-1); An upper connecting sleeve (4-2), wherein the upper connecting sleeve (4-2) is two and is symmetrically disposed front and rearward and is respectively screwed onto the front and rear side plates of the frame (2) through bearings, and the front and rear upper connecting sleeves (4-2) are respectively inserted and fixed onto the front and rear end plates of the floating cylinder (3-2) and are connected to the inner cavity of the floating cylinder (3-2); An air intake pipe (4-3), wherein the air intake pipe (4-3) is screwed through a sealing bearing and inserted into one of the lower connecting sleeves (4-1); An atomizing pipe (4-4), wherein the atomizing pipe (4-4) is screwed through a sealing bearing and inserted into another lower connecting sleeve (4-1); An air outlet pipe (4-5) is screwed through a sealing bearing and inserted into one of the upper connecting sleeves (4-2).

4. A gas heating and humidifying device for a clinical critical care ventilator according to claim 3, characterized in that: The regulating mechanism (5) comprises: A driving sprocket (5-1), wherein the driving sprocket (5-1) is sleeved and fixed on the upper connecting sleeve (4-2); A driven sprocket (5-2), wherein the driven sprocket (5-2) is sleeved and fixed on the lower connecting sleeve (4-1), and the driving sprocket (5-1) and the driven sprocket (5-2) are connected via a closed chain transmission; An adjusting shaft (5-3), wherein the adjusting shaft (5-3) is rotatably mounted on the frame (2) via a bearing; An active bevel gear (5-4), wherein the active bevel gear (5-4) is sleeved and fixed on the adjustment shaft (5-3); A driven bevel gear (5-5), wherein the driven bevel gear (5-5) is fixedly arranged on an upper connecting sleeve (4-2) at a side away from the air outlet pipe (4-5), and the driven bevel gear (5-5) and the driving bevel gear (5-4) are arranged to mesh with each other; A limit assembly (6), wherein the limit assembly (6) is arranged on the adjustment shaft (5-3).

5. A gas heating and humidifying device for a clinical critical care ventilator according to claim 4, characterized in that: The limiting component (6) comprises: Elastic rods (6-1), wherein there are two elastic rods (6-1), the adjusting shaft (5-3) is provided with an upper opening having a mounting cavity (6-2), the elastic rods (6-1) are inserted into the mounting cavity (6-2), and the lower ends of the elastic rods (6-1) are fixedly arranged at the lower end of the inner wall of the mounting cavity (6-2); A latching tooth (6-3), wherein the latching tooth (6-3) is fixedly arranged on the elastic rod (6-1), a waist-shaped hole (6-4) is opened on the side wall of the adjustment shaft (5-3), and the latching tooth (6-3) is arranged to pass through the waist-shaped hole (6-4); An end face ratchet (6-5), wherein the end face ratchet (6-5) is fixedly arranged on the frame (2), and the latching teeth (6-3) are arranged in meshing engagement with the end face ratchet (6-5).

6. A gas heating and humidifying device for a clinical critical care ventilator according to claim 5, characterized in that: A guide rod (7) is fixedly arranged on the frame (2), a lifting frame (8) is arranged on the side of the frame (2), and the lifting frame (8) is slidably arranged on the guide rod (7), and a back clamp (9) is fixedly arranged on the lifting frame (8).

7. A gas heating and humidifying device for a clinical critical care ventilator according to claim 6, characterized in that: Inner concave covers (10) are embedded and fixed on the side wall of the immersion cylinder (3-1) at equal angles.

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