CN111228624A - A purification filter device for airway humidification of tracheotomy patients - Google Patents

Abstract

The invention discloses a purifying and filtering device for humidifying the airway of a tracheotomy patient, comprising a mixing tube, both ends of the mixing tube are provided with connecting heads, and a valve chamber is arranged above the mixing tube, And the middle part of the bottom end of the valve compartment is provided with a through pipe, the bottom end of the through pipe is communicated with the inside of the mixing pipe, the inside of the through pipe is provided with a buffer sheet, and the outer side of the bottom end of the buffer sheet is provided with a support rod, and supports The number of rods is four groups, the support rods are all fixed with the inner wall of the through pipe, the middle of the top of the valve chamber is provided with a connecting pipe, and the outer side of the top of the connecting pipe is sleeved with a purification pipe. The invention intercepts the particulate matter in the water mist, greatly improves the cleaning degree of the water mist entering the oxygen, and is simple and convenient to assemble and disassemble, effectively ensuring the long-term cleaning and purification effect of the device.

Description

A purification filter device for airway humidification of tracheotomy patients

technical field

The invention relates to the technical field of airway humidification, in particular to a purification and filtering device for airway humidification of tracheotomy patients.

Background technique

For the needs of treatment, the trachea of some patients needs to be incised, and the trachea after the incision needs to be airway humidified. Airway humidification refers to the application of a humidifier or other device to disperse the solution into extremely fine particles to increase the temperature and humidity of the inhaled gas, so that the respiratory tract and lungs can inhale gas with sufficient moisture and appropriate temperature to achieve humidified gas. A type of physical therapy that maintains the function of the mucous membrane of the tract, maintains ciliary movement, thins sputum and clears the function.

However, in the prior art, in the process of airway humidification, the water mist output by the humidifier contains fine particles, which will not only adversely affect the airway humidification effect of the patient's trachea, but also adversely affect the airway humidification effect on the patient's body. secondary damage.

Based on the above technical problems, the present invention provides a purification and filtering device for humidifying the airway of a tracheotomy patient, which can humidify the airway of a tracheotomy patient and prevent secondary damage to the patient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a purification and filtering device for airway humidification of a tracheotomy patient, so as to solve the problem that the water mist output by the humidifier proposed in the above background contains fine particles, which may affect the user's body. The problem of secondary damage.

To achieve the above object, the present invention provides the following technical solutions:

A purifying and filtering device for airway humidification of tracheotomy patients, comprising a mixing pipe, both ends of the mixing pipe are provided with connecting heads, a valve chamber is arranged above the mixing pipe, and the bottom of the valve chamber is A through pipe is opened in the middle of the end, and the bottom end of the through pipe is communicated with the inside of the mixing pipe, the inside of the through pipe is provided with a buffer sheet, and the outer side of the bottom end of the buffer sheet is evenly provided with a support rod, the support rod is connected with the through pipe. The inner wall of the pipe is fixed, the middle of the top of the valve compartment is provided with a connecting pipe, and the outer side of the top of the connecting pipe is sleeved with a purification pipe. There are two sets of baffle rings, and a filter layer is arranged in the middle of the purification pipe.

Preferably, the number of the support rods is four groups.

Preferably, the inside of the valve compartment is provided with a rotating rod, the left end of the rotating rod is provided with a knob through the inner wall of the valve compartment, the right end of the rotating rod is connected with the inner wall of the valve compartment through an embedded bearing, and the two rotating rods are connected with the inner wall of the valve compartment. The outer sides of the ends are all sleeved with transmission sleeves.

Preferably, the outer side of the transmission sleeve is provided with a square, the outer side of the square is glued with a rubber sleeve, and the outer side of the rubber sleeve is in contact with the inner wall of the valve compartment.

Preferably, one end of the connecting head away from the mixing pipe is all conical, and the outer side of the connecting head is all sleeved with a rubber ring.

Preferably, the buffer sheet is in the shape of an arc surface, and the surface of the buffer sheet is uniformly provided with through holes.

Preferably, the inner walls of the upper and lower ends of the purification pipe are provided with internal threads, and the surfaces of the connecting pipe and the gas delivery head of the equipment are provided with external threads that cooperate with the purification pipe.

Preferably, a sealing ring is embedded in the gas delivery head of the equipment and one end of the connecting pipe close to the purification pipe, and the sealing rings are all fitted with the blocking ring.

Preferably, in order to better achieve sealing, the material of the sealing ring is rubber or polytetrafluoroethylene; the Shore hardness P of the sealing ring is 62-93, and the tensile strength Q is 21-35MPa; The Shore hardness P and tensile strength Q of the sealing ring satisfy that P·Q is greater than or equal to 1550 and less than or equal to 3120.

Preferably, the cross-sectional area S of the sealing ring is 10.5-14.6 square millimeters. In order to further improve the sealing performance, the cross-sectional area S, Shore hardness P and tensile strength Q of the sealing ring satisfy the following relationship:

S=α·P/Q+S0;

Among them, S0 is the basic cross-sectional area, and the value range is 3.15-5.2 square millimeters; α is the relationship coefficient, and the value range is 1.3-6.2.

Preferably, the outer sides of both ends of the rotating rod are provided with external threads, the thread directions of the external threads at both ends of the rotating rod are opposite, and the inner walls of the transmission sleeve are provided with internal threads that cooperate with the rotating rod.

Preferably, the filter layer includes a first filter layer, a second filter layer and a third filter layer; the first filter layer, the second filter layer and the third filter layer are arranged in order from front to back.

Preferably, the first filter layer is a ferromagnetic metal mesh filter layer with magnetic properties, and its remanence Br is 60-180 Gauss, so as to adsorb ferrous metal particles. The aperture d of the ferromagnetic metal mesh is 0.05-0.25mm,

Preferably, the second filter layer is a cotton yarn filter layer, the cotton yarn filter layer includes three layers of cotton yarns, and the mesh number N of the cotton yarns is 110-142 meshes.

Preferably, the third filter layer is an activated carbon filter layer, wherein the activated carbon is in powder form, and the specific surface area Z of the activated carbon is 560-1420 square meters/g.

Preferably, in order to better achieve the effect of purifying and filtering, the airway of the tracheotomy patient is humidified, and the secondary injury to the patient is prevented, the first filter layer is remanent Br, and the second filter layer is cotton yarn The following relationship is satisfied between the mesh number N and the specific surface area Z of the activated carbon of the third filter layer:

Z/α=β·(Br) ² /N;

Among them, β is the relationship factor, the value range is 1.35-32.5.

Preferably, the through holes opened on the surface of the buffer sheet are arranged in a circle.

Compared with the prior art, the beneficial effects of the present invention are:

1. The purification and filtering device of the present invention for humidifying the airway of a tracheotomy patient is provided with a purification tube and a filter layer. The fine filter holes on the layer intercept the particles in the water mist, which greatly improves the cleanliness of the water mist entering the oxygen, and prevents the fine particles in the water mist from causing secondary damage to the user, and the user uses the device for a long time. After the installation, the purification pipe can be rotated, and the purification pipe can be selected from the outer side of the connecting pipe and the gas delivery head of the equipment through the threaded structure, and the filter layer can be cleaned. Clean and purifying effect.

2. The purifying and filtering device for airway humidification of tracheotomy patients of the present invention is provided with a buffer sheet. When the user suddenly turns on the tracheal humidification device or suddenly increases the humidification amount of the tracheal humidification device, the water mist passes through the device. The gas delivery head, purification pipe, connecting pipe and valve chamber enter the inside of the through pipe, the water mist impacts on the buffer sheet, and the buffer sheet slows down the flow of the water mist, reducing the impact force on the oxygen when the water mist enters the mixing pipe , to improve the comfort of users receiving oxygen supply.

3. The purification and filtering device for airway humidification of tracheotomy patients of the present invention can better improve the sealing effect by setting the range and relationship between the cross-sectional area S of the sealing ring, the Shore hardness P and the tensile strength Q. performance, and then realize the purification and filtering effect to ensure the airway humidification of tracheotomy patients.

4. The purifying and filtering device of the present invention for humidifying the airway of a tracheotomy patient, by setting the filtering layer to include the first filtering layer, the second filtering layer and the third filtering layer, as well as the structure and parameters of each filtering layer, In order to better realize the effect of purification and filtration, it is used to humidify the airway of tracheotomy patients and prevent secondary damage to the patient.

5. The purification and filtering device for airway humidification of tracheotomy patients of the present invention is provided by setting the remanence Br of the first filter layer, the mesh number N of cotton yarn for the second filter layer, and the amount of activated carbon of the third filter layer. The relationship between the specific surface area Z, in order to further achieve the effect of purification and filtration, used to humidify the airway of the tracheotomy patient, and prevent secondary damage to the patient.

Description of drawings

FIG. 1 is a schematic front cross-sectional view of the structure of the present invention.

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 in the present invention.

3 is a schematic top view cross-sectional view of the structure of the present invention.

FIG. 4 is a schematic front view of the structure of the present invention.

In the figure: 1. Mixing pipe; 2. Connector; 3. Valve chamber; 4. Pass pipe; 5. Buffer sheet; 6. Support rod; 7. Connecting pipe; 8. Purification pipe; 9. Equipment gas delivery head; 10. Blocking ring; 11. Filter layer; 12. Rod; 13. Knob; 14. Transmission sleeve; 15. Square; 16. Rubber sleeve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Please refer to FIGS. 1-4 , a purifying and filtering device for airway humidification of a tracheotomy patient, comprising a mixing tube 1 , both ends of the mixing tube 1 are provided with connecting heads 2 , and the connecting heads 2 are far away from the mixing tube 1 One end of the connector is conical, and the outer side of the connector 2 is covered with a rubber ring. The user inserts the oxygen tube to the outer side of the connector 2. The rubber ring has good elasticity and large surface friction, which can effectively fix the oxygen tube. On the outside of the connecting head 2, and with good sealing performance, a valve chamber 3 is arranged above the mixing pipe 1, and a through pipe 4 is opened in the middle of the bottom end of the valve chamber 3. The bottom end of the through pipe 4 is communicated with the interior of the mixing pipe 1, and the The inside of the pipe 4 is provided with a buffer sheet 5, and the outer side of the bottom end of the buffer sheet 5 is evenly welded with support rods 6, and the number of the support rods 6 is four groups. The surface of the buffer sheet 5 is in the shape of a circular arc, and through holes are evenly formed on the surface of the buffer sheet 5 .

When the user suddenly turns the knob 13 to increase the amount of humidification, the water mist enters the through pipe 4 after passing through the gas delivery head 9, the purification pipe 8, the connecting pipe 7 and the valve chamber 3, and the water mist impacts on the buffer sheet 5, The buffer sheet 5 slows the flow of the water mist, reduces the impact force of the water mist on the oxygen when it enters the mixing tube 1, and improves the comfort of the users receiving oxygen supply.

The middle of the top of the valve chamber 3 is provided with a connecting pipe 7, and the outer side of the top of the connecting pipe 7 is sleeved with a purification pipe 8. The middle of the top of the purification pipe 8 is inserted with an equipment gas delivery head 9. Two sets of baffle rings 10, one end of the equipment gas delivery head 9 and the connecting pipe 7 close to the purification pipe 8 are all embedded with sealing rings, and the sealing rings are all fitted with the baffle rings 10, improving the purification pipe 8 and the connecting pipe 7 and the equipment. The tightness of the connection of the gas delivery head 9, the filter layer 11 is welded in the middle of the purification pipe 8, the inner walls of the upper and lower ends of the purification pipe 8 are all provided with internal threads, and the surfaces of the connecting pipe 7 and the equipment gas delivery head 9 are all provided with and purification. The external thread of the pipe 8 is matched with each other.

The water mist enters the interior of the purification pipe 8 through the equipment air delivery head 9, and when passing through the filter layer 11, the fine filter holes on the filter layer 11 intercept the particulate matter in the water mist, and the purified water mist passes through the connecting pipe 7. , the valve chamber 3 and the through pipe 4 enter the mixing pipe 1 to humidify the oxygen inside the mixing pipe 1. When the device is used for a period of time, the user can rotate the purification pipe 8 to connect the purification pipe 8 from the connection through the threaded structure. The filter layer 11 can be cleaned by selecting the outer side of the pipe 7 and the gas delivery head 9 of the equipment, the disassembly and assembly are simple and convenient, and the long-term cleaning and purification effect of the device is effectively guaranteed.

The inside of the valve chamber 3 is provided with a rotating rod 12, and the left end of the rotating rod 12 is welded with a knob 13 through the inner wall of the valve chamber 3, and the right end of the rotating rod 12 is connected with the inner wall of the valve chamber 3 through an embedded bearing, and the rotating rod 12 The outer sides of both ends are sleeved with transmission sleeves 14, and the outer sides of the transmission sleeves 14 are welded with squares 15, the outer sides of the squares 15 are glued with rubber sleeves 16, and the outer sides of the rubber sleeves 16 are in contact with the inner wall of the valve chamber 3, and the rotating rod The outer sides of both ends of 12 are provided with external threads, the thread directions of the external threads at both ends of the rotating rod 12 are opposite, and the inner walls of the transmission sleeve 14 are all provided with internal threads that cooperate with the rotating rod 12 .

The user rotates the knob 13 to drive the rotating rod 12 to rotate, and drives the transmission sleeve 14 to slide on the outside of the rotating rod 12 through the threaded structure. Since the threads on the outer sides of the two ends of the rotating rod 12 are in opposite directions, the transmission sleeve 14 drives the block 15 to move in the opposite direction. The distance between the two groups of squares 15 is adjusted, so as to adjust the flow rate of the water mist that can pass through the middle of the valve chamber 3, which has the effect of adjusting the amount of humidification of oxygen.

Example 2

A purifying and filtering device for airway humidification of a tracheotomy patient, comprising a mixing tube 1, both ends of the mixing tube 1 are provided with a connector 2, and one end of the connector 2 away from the mixing tube 1 is conical, The outer side of the connector 2 is covered with a rubber ring. The user inserts the oxygen tube to the outer side of the connector 2. The rubber ring has good elasticity and large surface friction, which effectively fixes the oxygen tube on the outer side of the connector 2, and The sealing performance is good, a valve chamber 3 is arranged above the mixing pipe 1, and a through pipe 4 is opened in the middle of the bottom end of the valve chamber 3. The bottom end of the through pipe 4 is communicated with the interior of the mixing pipe 1, and the interior of the through pipe 4 is provided with a buffer. Sheet 5, and the outer side of the bottom end of the buffer sheet 5 is evenly welded with support rods 6, and the number of support rods 6 is four groups. The surface of 5 is evenly provided with through holes.

When the user suddenly turns the knob 13 to increase the amount of humidification, the water mist enters the through pipe 4 after passing through the gas delivery head 9, the purification pipe 8, the connecting pipe 7 and the valve chamber 3, and the water mist impacts on the buffer sheet 5, The buffer sheet 5 slows the flow of the water mist, reduces the impact force of the water mist on the oxygen when it enters the mixing tube 1, and improves the comfort of the users receiving oxygen supply.

The middle of the top of the valve chamber 3 is provided with a connecting pipe 7, and the outer side of the top of the connecting pipe 7 is sleeved with a purification pipe 8. The middle of the top of the purification pipe 8 is inserted with an equipment gas delivery head 9. Two sets of baffle rings 10, one end of the equipment gas delivery head 9 and the connecting pipe 7 close to the purification pipe 8 are all embedded with sealing rings, and the sealing rings are all fitted with the baffle rings 10, improving the purification pipe 8 and the connecting pipe 7 and the equipment. The tightness of the connection of the gas delivery head 9, the filter layer 11 is welded in the middle of the purification pipe 8, the inner walls of the upper and lower ends of the purification pipe 8 are all provided with internal threads, and the surfaces of the connecting pipe 7 and the equipment gas delivery head 9 are all provided with and purification. The external thread of the pipe 8 is matched with each other.

The water mist enters the interior of the purification pipe 8 through the equipment air delivery head 9, and when passing through the filter layer 11, the fine filter holes on the filter layer 11 intercept the particulate matter in the water mist, and the purified water mist passes through the connecting pipe 7. , the valve chamber 3 and the through pipe 4 enter the mixing pipe 1 to humidify the oxygen inside the mixing pipe 1. When the device is used for a period of time, the user can rotate the purification pipe 8 to connect the purification pipe 8 from the connection through the threaded structure. The filter layer 11 can be cleaned by selecting the outer side of the pipe 7 and the gas delivery head 9 of the equipment, the disassembly and assembly are simple and convenient, and the long-term cleaning and purification effect of the device is effectively guaranteed.

The inside of the valve chamber 3 is provided with a rotating rod 12, and the left end of the rotating rod 12 is welded with a knob 13 through the inner wall of the valve chamber 3, and the right end of the rotating rod 12 is connected with the inner wall of the valve chamber 3 through an embedded bearing, and the rotating rod 12 The outer sides of both ends are sleeved with transmission sleeves 14, and the outer sides of the transmission sleeves 14 are welded with squares 15, the outer sides of the squares 15 are glued with rubber sleeves 16, and the outer sides of the rubber sleeves 16 are in contact with the inner wall of the valve chamber 3, and the rotating rod The outer sides of both ends of 12 are provided with external threads, the thread directions of the external threads at both ends of the rotating rod 12 are opposite, and the inner walls of the transmission sleeve 14 are all provided with internal threads that cooperate with the rotating rod 12 .

In order to better achieve sealing, the material of the sealing ring is rubber and PTFE; the Shore hardness P of the sealing ring is 62-93, and the tensile strength Q is 21-35MPa; especially the sealing ring The Shore hardness P and tensile strength Q satisfy that P·Q is greater than or equal to 1550 and less than or equal to 3120.

The cross-sectional area S of the sealing ring is 10.5-14.6 square millimeters. In order to further improve the sealing performance, the cross-sectional area S, Shore hardness P and tensile strength Q of the sealing ring satisfy the following relationship:

S=α·P/Q+S0;

Among them, S0 is the basic cross-sectional area, and the value range is 3.15-5.2 square millimeters; α is the relationship coefficient, and the value range is 1.3-6.2.

Example 3

A purifying and filtering device for airway humidification of a tracheotomy patient, comprising a mixing tube 1, both ends of the mixing tube 1 are provided with a connector 2, and one end of the connector 2 away from the mixing tube 1 is conical, The outer side of the connector 2 is covered with a rubber ring. The user inserts the oxygen tube to the outer side of the connector 2. The rubber ring has good elasticity and large surface friction, which effectively fixes the oxygen tube on the outer side of the connector 2, and The sealing performance is good, a valve chamber 3 is arranged above the mixing pipe 1, and a through pipe 4 is opened in the middle of the bottom end of the valve chamber 3. The bottom end of the through pipe 4 is communicated with the interior of the mixing pipe 1, and the interior of the through pipe 4 is provided with a buffer. Sheet 5, and the outer side of the bottom end of the buffer sheet 5 is evenly welded with support rods 6, and the number of support rods 6 is four groups. The surface of 5 is evenly provided with through holes.

When the user suddenly turns the knob 13 to increase the amount of humidification, the water mist enters the through pipe 4 after passing through the gas delivery head 9, the purification pipe 8, the connecting pipe 7 and the valve chamber 3, and the water mist impacts on the buffer sheet 5, The buffer sheet 5 slows the flow of the water mist, reduces the impact force of the water mist on the oxygen when it enters the mixing tube 1, and improves the comfort of the users receiving oxygen supply.

The middle of the top of the valve chamber 3 is provided with a connecting pipe 7, and the outer side of the top of the connecting pipe 7 is sleeved with a purification pipe 8. The middle of the top of the purification pipe 8 is inserted with an equipment gas delivery head 9. Two sets of baffle rings 10, one end of the equipment gas delivery head 9 and the connecting pipe 7 close to the purification pipe 8 are all embedded with sealing rings, and the sealing rings are all fitted with the baffle rings 10, improving the purification pipe 8 and the connecting pipe 7 and the equipment. The tightness of the connection of the gas delivery head 9, the filter layer 11 is welded in the middle of the purification pipe 8, the inner walls of the upper and lower ends of the purification pipe 8 are all provided with internal threads, and the surfaces of the connecting pipe 7 and the equipment gas delivery head 9 are all provided with and purification. The external thread of the pipe 8 is matched with each other.

The water mist enters the interior of the purification pipe 8 through the equipment air delivery head 9, and when passing through the filter layer 11, the fine filter holes on the filter layer 11 intercept the particulate matter in the water mist, and the purified water mist passes through the connecting pipe 7. , the valve chamber 3 and the through pipe 4 enter the mixing pipe 1 to humidify the oxygen inside the mixing pipe 1. When the device is used for a period of time, the user can rotate the purification pipe 8 to connect the purification pipe 8 from the connection through the threaded structure. The filter layer 11 can be cleaned by selecting the outer side of the pipe 7 and the gas delivery head 9 of the equipment, the disassembly and assembly are simple and convenient, and the long-term cleaning and purification effect of the device is effectively guaranteed.

The inside of the valve chamber 3 is provided with a rotating rod 12, and the left end of the rotating rod 12 is welded with a knob 13 through the inner wall of the valve chamber 3, and the right end of the rotating rod 12 is connected with the inner wall of the valve chamber 3 through an embedded bearing, and the rotating rod 12 The outer sides of both ends are sleeved with transmission sleeves 14, and the outer sides of the transmission sleeves 14 are welded with squares 15, the outer sides of the squares 15 are glued with rubber sleeves 16, and the outer sides of the rubber sleeves 16 are in contact with the inner wall of the valve chamber 3, and the rotating rod The outer sides of both ends of 12 are provided with external threads, the thread directions of the external threads at both ends of the rotating rod 12 are opposite, and the inner walls of the transmission sleeve 14 are all provided with internal threads that cooperate with the rotating rod 12 .

The filter layer includes a first filter layer, a second filter layer and a third filter layer; the first filter layer, the second filter layer and the third filter layer are arranged in order from front to back.

The first filter layer is a ferromagnetic metal mesh filter layer with magnetism, and its remanence Br is 60-180 Gauss, so as to adsorb ferrous metal particles. The aperture d of the ferromagnetic metal mesh is 0.05-0.25mm,

The second filter layer is a cotton yarn filter layer, the cotton yarn filter layer includes three layers of cotton yarns, and the mesh number N of the cotton yarns is 110-142 meshes.

The third filter layer is an activated carbon filter layer, wherein the activated carbon is in the form of powder, and the specific surface area Z of the activated carbon is 560-1420 square meters/g.

In order to better realize the effect of purification and filtration, it is used to humidify the airway of the tracheotomy patient and prevent secondary damage to the patient. N, the specific surface area Z of the activated carbon of the third filter layer satisfies the following relationship:

Z/α=β·(Br) ² /N;

Among them, β is the relationship factor, the value range is 1.35-32.5.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (7)

1. A purification and filtering device for humidifying the airway of a tracheotomy patient, comprising a mixing pipe (1), a connecting head (2), and a valve chamber (3), characterized in that: the mixing pipe (1) Both ends are provided with connecting heads (2), a valve chamber (3) is provided above the mixing pipe (1), and a through pipe (4) is opened in the middle of the bottom end of the valve chamber (3). The bottom end of the pipe (4) is communicated with the inside of the mixing pipe (1), the inside of the through pipe (4) is provided with a buffer sheet (5), and the outer side of the bottom end of the buffer sheet (5) is evenly provided with a support rod (6). ), the support rod (6) is fixed with the inner wall of the through pipe (4), the middle of the top of the valve chamber (3) is provided with a connecting pipe (7), and the outer side of the top of the connecting pipe (7) is sleeved with a purification pipe (8), a device gas delivery head (9) is inserted in the middle of the top of the purification pipe (8), and two sets of retaining rings (10) are provided in the middle of the purification pipe (8). ) is provided with a filter layer (11) in the middle. 2. A purification and filtering device for airway humidification of a tracheotomy patient according to claim 1, characterized in that: one end of the connector (2) away from the mixing tube (1) is all conical in shape , the outer side of the connecting head (2) is sleeved with a rubber ring. 3. A purification and filtering device for airway humidification of a tracheotomy patient according to claims 1 and 2, characterized in that: the buffer sheet (5) is in the shape of an arc surface, and the buffer sheet The surface of (5) is evenly provided with through holes. 4. A purification and filtering device for airway humidification of tracheotomy patients according to claim 1, characterized in that: the inner walls of the upper and lower ends of the purification tube (8) are provided with internal threads. 5. A purification and filtering device for airway humidification of a tracheotomy patient according to claim 1, characterized in that: the device gas delivery head (9) and the connecting pipe (7) are close to the purification pipe ( 8) A sealing ring is embedded in one end, and the sealing ring fits with the retaining ring (10). 6 . The purification and filtering device for airway humidification of tracheotomy patients according to claim 1 , characterized in that: the outer sides of both ends of the rotating rod ( 12 ) are provided with external threads, and the rotating rod ( 12 ) is provided with external threads. 7 . The thread directions of the external threads at both ends of the rod (12) are opposite, and the inner walls of the transmission sleeve (14) are all provided with internal threads that cooperate with the rotating rod (12). 7 . The purification and filtering device for airway humidification of a tracheotomy patient according to claim 3 , wherein the through holes opened on the surface of the buffer sheet ( 5 ) are arranged in a circle. 8 .

Images