CN216169260U - Oxygen therapy device - Google Patents

Abstract

The utility model belongs to the field of medical instruments, and discloses an oxygen therapy device which is specially used for oxygen therapy of obstetrics and gynecology department; the oxygen flow regulating valve is provided with a flow meter, and is sequentially connected with a wet film humidifying mechanism, an oxygen concentration regulating mechanism and an oxygen mixing mechanism, and the oxygen mixing mechanism is connected with an oxygen inhalation mask through an oxygen inhalation pipe; the utility model solves the problems that the oxygen delivery device in the prior art has high noise when delivering oxygen to pregnant women and cannot accurately control the oxygen concentration.

Description

Oxygen therapy device

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to an oxygen therapy device.

Background

The pregnant woman often has the symptom of oxygen deficiency in the middle and late pregnancy, oxygen therapy is needed, and the oxygen in the hospital is often high-concentration dry pure oxygen, and is humidified by an oxygen therapy device and then mixed with air to a certain concentration for the oxygen inhalation of a patient; most of the oxygen therapy devices used in the current market adopt a mode that oxygen directly enters water for humidification when humidifying oxygen, so that a large amount of bubbles are generated, noise is generated, and long-time noise can possibly influence physical and psychological health of a patient; the oxygen concentration is adjusted by directly conveying high-concentration oxygen to the mouth and the nose of a patient, the oxygen concentration is reduced by mixing with external air when the patient inhales, the oxygen concentration cannot be accurately controlled due to various external uncontrollable factors, and certain influence is caused on the development of a fetus in the abdomen of a pregnant woman when the oxygen concentration is too high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an oxygen therapy device which can accurately control oxygen concentration and reduce noise.

Based on the purpose, the utility model adopts the following technical scheme: an oxygen therapy device comprises an oxygen flow regulating valve, wherein a flow meter is arranged on the oxygen flow regulating valve; the oxygen flow regulating valve is sequentially connected with a wet film humidifying mechanism, an oxygen concentration regulating mechanism and an oxygen mixing mechanism through pipelines, and the oxygen mixing mechanism is connected with an oxygen mask through an oxygen inhaling pipe.

Furthermore, the wet film humidifying mechanism comprises a humidifying bottle, an oxygen inlet and an oxygen outlet are formed in the humidifying bottle, a wet film structure is arranged in the humidifying bottle, the wet film structure is a square box structure and comprises a pair of fixing plates which are symmetrically arranged up and down, a pair of symmetrically distributed air baffles and a pair of symmetrically distributed supporting plates are arranged between the fixing plates, and the air baffles, the supporting plates and the fixing plates jointly form a square hollow box; a plurality of water absorption films which are arranged at intervals are uniformly distributed in the wet film structure, and the water absorption films are vertically arranged and are vertical to the fixed plate and the air baffle plate; the upper end and the lower end of each water absorption film are respectively fixed on the fixing plate, and the adjacent water absorption films are arranged in a staggered manner; the water absorption film, the fixing plate and the air baffle plate form a humidification channel distributed in an S shape; the water absorbing film adjacent to the supporting plate and the adjacent supporting plate are arranged at intervals, the water absorbing film adjacent to the supporting plate and the adjacent supporting plate, the air blocking plates and the fixing plate form an air inlet and outlet channel, air vents communicated with the air inlet and outlet channel are arranged on the two symmetrically distributed air blocking plates respectively, the air vents of the two air inlet and outlet channels are arranged on different air blocking plates respectively, and the air inlet and outlet channel is connected with the S-shaped humidifying channel.

Furthermore, the lower end of the air baffle is provided with a plurality of water inlet holes matched with the water absorption film, the water inlet holes are communicated with the inside of the humidification bottle, and the humidification bottle is filled with humidification liquid.

The wet film structure is arranged in the humidification bottle along the vertical section of the humidification bottle and is positioned between the oxygen inlet and the oxygen outlet of the humidification bottle; the inner wall of the humidification bottle is provided with a pair of U-shaped clamping grooves matched with the wet film structure, the wet film structure is fixed in the humidification bottle by utilizing the clamping grooves, the clamping grooves are arranged along the length direction of the humidification bottle, and supporting plates at two ends of the wet film structure are respectively in seamless contact with the inner side walls of the two clamping grooves; the height of the humidifying structure is the same as that of the cavity in the humidifying bottle, the space in the humidifying bottle is isolated into two parts by the humidifying structure, the detachable sealing cover is arranged at the opening of the humidifying bottle, the sealing cover is provided with a water inlet, the sealing plug is arranged at the water inlet, and the water inlet is positioned at one side of the wet film structure in the humidifying bottle when the humidifying bottle is sealed by the sealing cover.

Further, the oxygen concentration adjusting mechanism and the oxygen mixing mechanism are arranged up and down, and the oxygen concentration adjusting mechanism is connected with the oxygen mixing mechanism through a vertically arranged pipeline; the oxygen concentration regulating mechanism comprises an air flow regulating valve, one end of the air flow regulating valve is connected with an oxygen outlet of the humidification bottle through an L-shaped pipeline, and the other end of the air flow regulating valve is connected with the oxygen mixing mechanism through a vertically arranged pipeline; the oxygen concentration regulating mechanism also comprises a one-way air inlet structure arranged on a pipeline between the air flow regulating valve and the oxygen mixing mechanism.

Furthermore, the one-way air inlet structure comprises vent holes which are uniformly distributed on the pipeline and a shielding cover matched with the vent holes, the shielding cover is of an annular sheet structure, the top end of the shielding cover is fixed on the pipeline above the vent holes, the bottom end of the shielding cover is obliquely arranged outwards and is seamlessly connected with an annular blocking piece, and one end, far away from the shielding cover, of the blocking piece is in seamless contact with the pipeline; the separation blade is the rubber piece of level setting, is provided with on the pipeline with separation blade matched with annular resistance circle, and the resistance circle sets up in the separation blade below.

Further, the oxygen mixing mechanism comprises an oxygen mixing box, the oxygen mixing box is a hollow box body, the oxygen mixing box is vertically placed, an air inlet is formed in the bottom end of the oxygen mixing box, and an air outlet is formed in the top end of the oxygen mixing box; an air filter screen is arranged in the oxygen mixing box, the shape of the air filter screen is the same as that of the cross section of the oxygen mixing box, the air filter screen is horizontally arranged in the oxygen mixing box, and the edge of the air filter screen is in seamless connection with the inner wall of the oxygen mixing box; an oxygen concentration detector is arranged at the outlet of the oxygen mixing box, and an electronic display screen is arranged on the oxygen concentration detector and used for displaying the detected oxygen concentration.

Further, an oxygen inhalation tube is connected to the air outlet of the oxygen mixing box, and an oxygen inhalation mask is connected to one end of the oxygen inhalation tube, which is far away from the oxygen mixing box; the oxygen inhalation mask is provided with an air inlet which is connected with the oxygen inhalation pipe; the air inlet is provided with a one-way air valve which allows air to enter the oxygen inhalation mask from the oxygen inhalation pipe, the two sides of the air inlet on the oxygen inhalation mask are provided with air outlet holes, and the air outlet holes are provided with one-way air valves which allow air to flow out from the oxygen inhalation mask; a sealing ring is arranged at the joint of the oxygen inhalation mask and the mouth and the nose, and is made of flexible material and used for preventing gas from flowing out from the edge of the oxygen inhalation mask when the oxygen inhalation mask is used; the oxygen inhalation mask is provided with a fixing band for fixing the oxygen inhalation mask at the mouth and nose of a patient.

Compared with the prior art, the utility model has the following beneficial effects:

1. the oxygen delivery device comprises an oxygen flow regulating valve, and a flowmeter is arranged on the oxygen flow regulating valve; the oxygen flow regulating valve is connected with a wet film humidifying mechanism which can humidify oxygen and greatly reduce noise when humidifying the oxygen; the wet film humidifying mechanism is sequentially connected with an oxygen concentration adjusting mechanism and an oxygen mixing mechanism, and the oxygen concentration output by the oxygen conveying device can be adjusted through the oxygen concentration adjusting mechanism and the oxygen mixing mechanism.

2. The wet film humidifying mechanism comprises a humidifying bottle, a wet film plate and a sealing cover; the humidifying bottle and the inner part can contain humidifying liquid, and the humidifying liquid enters the wet membrane plate through the water inlet on the wet membrane plate to soak the water absorption membrane in the wet membrane plate; dry oxygen enters the humidification film through the air vent at one side of the wet film plate, flows out from the other side of the wet film plate after passing through an S-shaped humidification channel formed by the water absorption film in the wet film plate, the supporting plate, the fixing plate and the air baffle plate, and is in thixotropic humidification with the wet water absorption plate in the wet film plate; and an S-shaped humidifying channel is formed among the water absorption film, the supporting plate, the fixing plate and the air baffle plate, so that the contact area of oxygen and the water absorption film is greatly increased, and the humidifying effect can be better achieved.

3. The air baffle plate of the wet film structure is provided with a water inlet matched with the water absorption film, so that the wetting liquid can be accelerated to enter the wet film structure.

4. The oxygen concentration adjusting mechanism and the oxygen mixing mechanism are connected through a vertical pipeline, and a baffle plate on the one-way air inlet structure on the vertical pipeline is in contact with the stop ring under the action of gravity when the oxygen concentration adjusting mechanism does not work.

5. The oxygen concentration regulating mechanism comprises an air flow regulating valve, the air inlet of the air flow regulating valve is connected with the oxygen outlet of the wet film humidifying device, the air outlet of the air flow regulating valve is connected with the air inlet of the oxygen mixing box, and a one-way air inlet structure is arranged at the air outlet of the air flow regulating valve; the unidirectional air inlet structure comprises an air vent, an annular sheet-shaped shielding cover is arranged at the air vent, one end of the shielding cover is in seamless connection with the pipeline, an annular blocking piece is arranged at one end, away from the pipeline, of the shielding cover, the blocking piece is in seamless connection with one end, away from the pipeline, of the shielding cover, one end, away from the shielding cover, of the blocking piece is in seamless contact with the pipeline, an annular blocking ring is arranged at the contact position of the pipeline and the blocking piece, and the end, in contact with the pipeline, of the blocking piece is placed on one side, facing the air vent, of the blocking ring; after oxygen is introduced into the oxygen delivery device, the flow velocity of gas in a pipeline where the one-way air inlet structure is located is higher than that of gas outside the pipeline, so that pressure difference is generated between the inside of the pipeline and the outside of the pipeline, the pressure in the pipeline is reduced, air is pressed into the one-way air inlet structure by the atmospheric pressure outside the pipeline, a blocking piece in seamless contact with the pipeline is forced to be separated, the air enters the pipeline through the air vent and then is converged into the oxygen mixing box, and the oxygen concentration in the oxygen mixing box is changed; the flow rate of the gas is adjusted through the gas flow adjusting valve, so that the air quantity conveyed into the oxygen mixing box through the vent hole can be adjusted, and the oxygen concentration in the oxygen mixing box is adjusted; the shielding cover, the baffle and the blocking ring arranged at the vent hole can prevent oxygen from flowing out of the pipeline; the baffle is made of rubber materials, so that the air inlet and air blocking effects of the one-way air inlet structure can be greatly improved.

6. An air filter screen is arranged in the oxygen mixing box and is used for filtering impurities in the gas; the oxygen concentration detector is arranged at the outlet of the oxygen mixing box and used for detecting the oxygen concentration in the oxygen mixing box, and the oxygen concentration detector is connected with an electronic display screen and used for displaying the detected oxygen concentration.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural view of an oxygen flow rate regulating valve according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a wet film humidifying mechanism according to embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a humidification bottle in accordance with embodiment 1 of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A in FIG. 4;

FIG. 6 is a schematic cross-sectional view taken at C-C in FIG. 4;

FIG. 7 is a schematic structural view of a wet film structure according to example 1 of the present invention;

FIG. 8 is a schematic front view of a wet film structure according to example 1 of the present invention;

FIG. 9 is a schematic cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is a schematic structural view of an oxygen concentration adjusting mechanism according to embodiment 1 of the present invention;

FIG. 11 is a schematic structural view of a baffle plate in embodiment 1 of the present invention;

fig. 12 is a schematic structural view of a shield cover according to embodiment 1 of the present invention;

fig. 13 is a schematic structural view of a stop ring in embodiment 1 of the present invention;

FIG. 14 is a schematic structural view of an oxygen mixing mechanism according to embodiment 1 of the present invention;

fig. 15 is a schematic sectional view of a humidifying bottle in accordance with embodiment 2 of the present invention.

In the figure: an oxygen flow rate regulating valve 1; a flow meter 11; an oxygen flow regulating handwheel 12; a wet film humidifying mechanism 2; a humidifying bottle 21; a sealing cover 211; a water inlet 212; an oxygen inlet 213; an oxygen outlet 214; a card slot 215; a wet film plate 22; a water inlet 221; a vent port 222; a water-absorbing film 223; a fixing plate 224; a support plate 225; a gas shield 226; an oxygen concentration adjusting mechanism 3; an air flow regulating valve 31; an air flow regulating handwheel 311; a one-way air intake structure 32; an oxygen mixing mechanism 4; an oxygen mixing tank 42; an air filter 41; an oxygen concentration detector 43; an electronic display screen 44; an oxygen uptake pipe 5; an oxygen inhalation mask 6.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and examples, which are provided to illustrate the present invention and not to limit the scope of the present invention.

Example 1

An oxygen therapy device, as shown in fig. 1 to 14, comprises an oxygen flow regulating valve 1, wherein a flow meter 2 is arranged on the oxygen flow regulating valve 1; the oxygen flow regulating valve 1 is connected with a wet film humidifying mechanism 2 through a pipeline, the wet film humidifying mechanism comprises a humidifying bottle 21, an oxygen inlet 213 and an oxygen outlet 214 are arranged on the humidifying bottle, the oxygen inlet 213 and the oxygen outlet 214 are symmetrically distributed relative to the central axis of the humidifying bottle 21, a wet film structure 22 is arranged in the humidifying bottle 21, the wet film structure 22 is a square box structure, the wet film structure comprises a pair of symmetrically arranged fixing plates 224, a pair of symmetrically distributed air baffles 226 and a pair of symmetrically distributed supporting plates 225 are arranged between the two fixing plates 224, and the air baffles 226, the supporting plates 225 and the fixing plates 224 jointly form a square hollow box; a plurality of water absorption films 223 which are arranged at intervals are uniformly distributed in the wet film structure 22, and the water absorption films 223 are vertically arranged and are perpendicular to the fixing plate 224 and the air baffle 226; the upper end and the lower end of each water absorption film 223 are respectively fixed on the fixing plate 224, and the adjacent water absorption films 223 are arranged in a staggered manner; the water absorption film 223, the fixing plate 224 and the air baffle plate 226 jointly form S-shaped distributed humidification channels, the water absorption film 223 adjacent to the support plate 225 and the adjacent support plate 225 on the outermost side are arranged at intervals, the water absorption film 223 adjacent to the support plate 225 and the adjacent support plate 225, the air baffle plate 226 and the fixing plate 224 on the outermost side form air inlet and outlet channels, air vents 222 communicated with the air inlet and outlet channels are respectively arranged on the two symmetrically distributed air baffle plates 226, the air vents 222 of the two air inlet and outlet channels are respectively arranged on different air baffle plates 226, and the air inlet and outlet channels are communicated with the S-shaped humidification channels; the lower ends of the two air baffles 226 are provided with a plurality of water inlet holes 221 matched with the water absorption film 222, and the water inlet holes 221 are communicated with the interior of the humidification bottle 21.

The wet film structure 22 is arranged in the humidification bottle 21 along the vertical section of the humidification bottle 21 and is positioned between the oxygen inlet 213 and the oxygen outlet 214 of the humidification bottle 21; a pair of U-shaped clamping grooves 215 matched with the wet film structure 22 are formed in the inner wall of the humidification bottle 21, the wet film structure 22 is fixed in the humidification bottle 21 through the clamping grooves 215, the clamping grooves are formed in the length direction of the humidification bottle 21, and supporting plates 225 at two ends of the wet film structure 22 are in seamless contact with the inner side walls of the two clamping grooves 215 respectively; the height of the humidifying structure 22 is the same as that of the cavity in the humidifying bottle 21, the humidifying structure 22 separates the space in the humidifying bottle 21 into two parts, a detachable sealing cover 211 is arranged at the opening of the humidifying bottle 21, a water inlet 212 is arranged on the sealing cover 211, a sealing plug is arranged at the water inlet 212, and the water inlet 212 is positioned at one side of the humidifying bottle 21 in the humidifying bottle 22 when the sealing cover 211 is used for sealing the humidifying bottle 21; the wet film structure 22 is arranged in the humidification bottle 21, the support plates 223 at the left end and the right end are respectively in seamless contact with the inner side walls of the two clamping grooves 215 in the humidification bottle 21, the two fixing plates 224 are symmetrical up and down, the fixing plate at the upper side is in seamless contact with the inner side surface of the sealing cover 211, and the fixing plate at the lower side is in seamless contact with the bottom of the humidification bottle 21; the wet film structure 22 is arranged between the oxygen inlet 213 and the oxygen outlet 214 in the humidification bottle 21, so that the gas entering from the oxygen inlet 213 of the humidification bottle 21 must enter the humidification structure 22 through the vent 222 on the air baffle 226 close to one side of the oxygen inlet 213 on the wet film structure 22, and then flows out from the vent on the air baffle 226 close to one side of the oxygen outlet 214 on the humidification structure 22 through the S-shaped humidification channel in the humidification structure.

The wet film humidifying mechanism 2 is connected with the oxygen flow regulating valve 1 through an oxygen inlet 213 on the humidifying bottle 21, an oxygen outlet 214 of the humidifying bottle 21 is connected with the oxygen concentration regulating mechanism 3 through a pipeline, the oxygen outlet 214 is connected with the oxygen concentration regulating mechanism 3 through an L-shaped pipeline, the oxygen concentration regulating mechanism 3 is vertically arranged, and the oxygen concentration regulating mechanism 3 and the oxygen mixing mechanism 4 are vertically arranged.

The oxygen concentration adjusting mechanism 3 comprises an air flow adjusting valve 31, and the air inlet of the air flow adjusting valve 31 is connected with the oxygen outlet 214 of the humidification bottle 21; the air outlet of the air flow regulating valve 31 is connected with the oxygen mixing mechanism 4 through a vertically arranged pipeline. A one-way air inlet structure 32 is arranged on a pipeline between the air flow regulating valve 31 and the oxygen mixing mechanism 4; the one-way air inlet structure 32 comprises vent holes which are uniformly distributed on the pipeline and a shielding cover matched with the vent holes, the shielding cover is of an annular sheet structure, the top end of the shielding cover is fixed on the pipeline above the vent holes, the bottom end of the shielding cover is obliquely arranged outwards and is seamlessly connected with an annular blocking piece, and one end, far away from the shielding cover, of the blocking piece is in seamless contact with the pipeline; the separation blade is the rubber piece of level setting, is provided with on the pipeline with separation blade matched with annular resistance circle, resistance circle setting in the separation blade below, the separation blade is out of work under the effect with resistance circle contact under the gravity.

The oxygen mixing mechanism 4 comprises an oxygen mixing box 42, the oxygen mixing box 42 is a hollow box body, the oxygen mixing box is vertically placed, the bottom end of the oxygen mixing box is provided with an air inlet, and the top end of the oxygen mixing box is provided with an air outlet; an air filter screen 41 is arranged in the oxygen mixing box 42, the shape of the air filter screen 41 is the same as that of the cross section of the oxygen mixing box 42, the air filter screen 41 is horizontally arranged in the oxygen mixing box 42, and the edge of the air filter screen 41 is in seamless connection with the inner wall of the oxygen mixing box 42; an oxygen concentration detector 43 is arranged at the air outlet of the oxygen mixing box 42, and an electronic display screen 44 is arranged on the oxygen concentration detector 43 and used for displaying the detected oxygen concentration.

The oxygen concentration mixing mechanism 4 is connected with the air outlet of the air flow regulating valve 31 through the air inlet on the oxygen mixing box 42, the air outlet on the oxygen mixing box 42 is connected with an oxygen inhalation tube 5, one end of the oxygen inhalation tube 5 far away from the oxygen mixing box 42 is connected with an oxygen inhalation mask 6, the oxygen inhalation mask 6 is provided with an air inlet hole, and the air inlet hole is connected with the oxygen inhalation tube 5; the air inlet hole is provided with a one-way air valve which allows air to enter the oxygen inhalation mask 6 from the oxygen inhalation pipe 5, the two sides of the air inlet hole of the oxygen inhalation mask 6 are provided with air outlet holes, and the air outlet holes are provided with one-way air valves which allow air to flow out from the oxygen inhalation mask 6; a sealing ring is arranged at the joint of the oxygen inhalation mask 6 and the mouth and the nose, and is made of flexible material and used for preventing gas from flowing out from the edge of the oxygen inhalation mask 6 when the oxygen inhalation mask 6 is used; the oxygen inhalation mask 6 is provided with a fixing strap for fixing the oxygen inhalation mask 6 at the mouth and nose of the patient.

It should be noted that the oxygen flow rate regulating valve 1, the gas flow regulating valve 31, the one-way gas valve, the oxygen concentration detector 43 and the electronic display 44 are all commercially available products.

When the oxygen transfer device is used, whether all parts of the oxygen transfer device are connected is firstly checked, after all parts of the oxygen transfer device are connected, a proper amount of humidification liquid is injected into the humidification bottle 21 through the water inlet 212 on the humidification bottle 21, the height of the humidification liquid in the humidification bottle 21 is lower than the height of the oxygen inlet 213 and the oxygen outlet 214, and the water inlet 212 is sealed by using the sealing plug after the humidification liquid is injected; the wetting liquid enters the wet film structure 22 through the water inlet holes 221 on the air baffle plates 226 at both sides of the wet film structure 22, and the water absorption film 223 in the wet film structure 22 is quickly wetted by the wetting liquid due to the capillary phenomenon.

Then connecting the oxygen flow regulating valve 1 with an oxygen supply device, opening the oxygen supply device, regulating the oxygen flow regulating valve 1 through an oxygen flow regulating hand wheel 12, and regulating the oxygen flow to a proper value by observing a flow meter 11 on the oxygen flow regulating valve 1; oxygen enters the humidification bottle 21 from the oxygen inlet 213 of the humidification bottle 21 through the oxygen flow regulating valve 1, the oxygen entering from the oxygen inlet 213 enters the humidification bottle 21 through the vent hole 222 on the air baffle 226 on the wet film structure 22 close to one side of the oxygen inlet 213, the oxygen flows out from the vent hole on the air baffle 226 on one side of the wet film structure 22 close to the oxygen outlet 214 after passing through the humidification channel in the wet film structure 22, so that the effect of humidifying oxygen is achieved, and then the humidified oxygen flows into the airflow regulating valve 31 through the oxygen outlet 214; moist oxygen enters the oxygen mixing box 42 through the air flow regulating valve 31, and because the one-way air inlet structure 32 is arranged on the pipeline at the air inlet of the air flow regulating valve 31, and the air flow rate in the pipeline at the position of the one-way air inlet structure 32 is larger than the air flow rate outside the pipeline, the air can be pressed into the pipeline through the vent hole by the atmospheric pressure outside the pipeline, so that the oxygen and the air can enter the oxygen mixing box 42 at the same time, and the effect of reducing the oxygen concentration in the oxygen mixing box 42 is achieved; oxygen and air are mixed in the oxygen mixing box 42, then flow into the oxygen inhalation tube 5 from the air outlet of the oxygen mixing box 42 through the filter screen, and are conveyed to the oxygen inhalation mask 6 through the oxygen inhalation tube 6; the oxygen concentration is adjusted by observing the numerical value of the oxygen concentration detected on the electronic display screen 44 on the oxygen concentration detector 43, and when the oxygen concentration is too high, the gas flow speed in the pipeline at the position of the one-way air inlet structure 32 is increased by rotating the gas flow adjusting hand wheel 311, so that the air inlet amount of the one-way air inlet structure 32 is increased, and the oxygen concentration in the oxygen mixing box 42 is reduced; when the oxygen concentration is over the bottom, the gas flow speed in the pipeline at the one-way gas inlet structure 32 is reduced by rotating the gas flow adjusting hand wheel 311, so that the air inlet amount of the one-way gas inlet structure 32 is reduced, and the oxygen concentration in the oxygen mixing box 42 is improved; when reaching the proper concentration, the patient can wear the oxygen inhalation mask 6, and the oxygen inhalation mask 6 is fixed at the mouth and nose of the patient through the fixing band on the oxygen inhalation mask 6.

Example 2

Compared with the embodiment 1, the difference of this embodiment is that, referring to fig. 15, the oxygen inlet 213 on the humidification bottle 21 is disposed on the sealing cover 211, and after the sealing cover 211 is hermetically connected with the humidification bottle 21, the oxygen inlet 213 on the sealing cover 211 is located on the side of the humidification structure 22 away from the oxygen outlet 214; this reduces the risk of damage to the oxygen inlet 213 due to gravity; the other parts are identical to those of example 1.

The above description is illustrative of the present invention and is not to be construed as limiting the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.

Claims (6)

1. An oxygen therapy device comprises an oxygen flow regulating valve, wherein a flow meter is arranged on the oxygen flow regulating valve, and the oxygen therapy device is characterized in that a wet film humidifying mechanism, an oxygen concentration regulating mechanism and an oxygen mixing mechanism are sequentially connected to the oxygen flow regulating valve, and the oxygen mixing mechanism is connected with an oxygen inhalation mask through an oxygen inhalation pipe; wet membrane humidifying mechanism includes the humidifying bottle, is provided with wet membrane structure in the humidifying bottle, and wet membrane structure is vertical places in the humidifying bottle, is provided with on the humidifying bottle inner wall with wet membrane structure matched with U type draw-in groove, and the opening part of humidifying bottle is provided with the sealed lid of detachable.

2. The oxygen therapy device according to claim 1, wherein the wet film structure is a square box body, the wet film structure comprises a pair of fixed plates which are arranged up and down, a pair of symmetrically distributed air baffles and a pair of symmetrically distributed supporting plates are arranged between the fixed plates, and the air baffles, the supporting plates and the fixed plates together form a square hollow box body; a plurality of water absorption films which are arranged at intervals are uniformly distributed in the wet film structure, and the water absorption films are vertically arranged; the upper end and the lower end of each water absorption film are respectively fixed on the fixing plate, and the adjacent water absorption films are arranged in a staggered manner; the water absorption film, the fixing plate and the air baffle plate form a humidifying channel distributed in an S shape; the water absorption film at the outermost side and the adjacent supporting plate are arranged at intervals, the water absorption film at the outermost side, the adjacent supporting plate, the air baffle plate and the fixing plate form an air inlet and outlet channel, and the air baffle plate is provided with an air vent communicated with the air inlet and outlet channel.

3. The oxygen therapy device as claimed in claim 2, wherein the air baffle is provided with a plurality of water inlets matching with the water absorbing film, the water inlets are communicated with the interior of the humidification bottle, and the humidification bottle is filled with humidification liquid.

4. The oxygen therapy device according to claim 3, wherein the oxygen concentration adjusting mechanism and the oxygen mixing mechanism are arranged up and down, and the oxygen concentration adjusting mechanism is connected with the oxygen mixing mechanism through a vertically arranged pipeline; the oxygen concentration regulating mechanism comprises an air flow regulating valve, and the air flow regulating valve is respectively connected with the humidifying bottle and the oxygen mixing mechanism through pipelines; the oxygen concentration adjusting mechanism also comprises a one-way air inlet structure arranged between the air flow adjusting valve and the oxygen mixing mechanism.

5. The oxygen therapy device as claimed in claim 4, wherein the one-way air inlet structure comprises an air vent arranged on the pipeline, and further comprises a shielding cover matched with the air vent, the shielding cover is of an annular sheet structure, the top end of the shielding cover is fixed on the pipeline above the air vent, the bottom end of the shielding cover is arranged in an outward inclined manner, and the bottom end of the shielding cover is connected with an annular blocking piece; the separation blade is the rubber piece of level setting, is provided with the annular resistance circle with separation blade matched with on the pipeline, and the resistance circle sets up in the separation blade below.

6. The oxygen therapy device as claimed in claim 5, wherein the oxygen mixing mechanism comprises an oxygen mixing box having a cavity structure, an air filter net is disposed in the oxygen mixing box, and an oxygen concentration detector is disposed in the oxygen mixing box; the bottom end of the oxygen mixing box is connected with the airflow regulating valve, and the top end of the oxygen mixing box is connected with an oxygen mask through an oxygen tube.

Images