CN115591430B

CN115591430B - Air and oxygen mixer for neonate

Info

Publication number: CN115591430B
Application number: CN202211506381.1A
Authority: CN
Inventors: 谷婷婷; 蔡宇; 季明玉; 张飞飞; 刘庆罗
Original assignee: Nanjing Superstar Medical Equipment Co ltd
Current assignee: Nanjing Superstar Medical Equipment Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-21
Anticipated expiration: 2042-11-29
Also published as: CN115591430A

Abstract

The invention relates to the technical field of medical instruments, and provides a newborn air and oxygen mixer which comprises a mixing tank, wherein a rotating wind wheel is arranged inside the mixing tank, the upper end and the lower end of the wind wheel are respectively connected with a bearing, the upper bearing and the lower bearing are respectively sleeved at the upper end and the lower end of the mixing tank, a piston which moves up and down is sleeved in the middle of the inside of the wind wheel, a reciprocating screw rod which is as high as the wind wheel is sleeved in the piston, and the bottom end of the reciprocating screw rod is fixedly connected with the mixing tank. First intake pipe and second intake pipe are connected respectively through with air hose and oxygen hose, make air hose and oxygen hose let in oxygen and air to the inside of blending tank, utilize the gaseous vortex that air hose and oxygen hose washed out to promote the plectrum and rotate, make the whole of wind wheel rotate, make pivoted wind wheel stir the mixture to the air and the oxygen that let in, only need adjust the purpose that the supply of oxygen flow of oxygen hose can reach control oxygen concentration.

Description

Air and oxygen mixer for neonate

Technical Field

The invention relates to the technical field of medical instruments, in particular to an air and oxygen mixer for a newborn.

Background

Some neonates with underdeveloped lungs or children with other diseases need oxygen therapy, however, when the neonates inhale pure oxygen, oxygen intensity is easy to cause, and when the inhaled oxygen is lower, cerebral blood flow is increased, therefore, air and oxygen need to be mixed into oxygen concentration according to a certain proportion to assist oxygen supply,

the existing simple air-oxygen mixing device is designed by using an air compressor to drive through electric power, a power supply is required to be ensured, the air compressor cannot be used when power is cut off, the noise is loud when the air compressor works, the noise is difficult to eliminate generally, if an internal combustion engine is used as power, certain pollution is caused to the ambient air, obviously, the noise hinders the treatment and health of patients, the structure of an air-oxygen mixer is complex, the concentration of oxygen is not accurately regulated, and the regulated oxygen and the air are not uniformly mixed, so that the using effect of the patients is influenced.

Therefore, we improve this and propose a newborn air-oxygen mixer.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: electric drive, the power failure can't be used promptly, and the work voice is big, is difficult to eliminate, and empty oxygen mixer structure is complicated, and the concentration adjustment inaccuracy of oxygen, and the mixing between the oxygen of adjusting and the air is inhomogeneous, influences the effect that the patient used.

(II) technical scheme

In order to achieve the purpose, the invention provides a newborn air-oxygen mixer which comprises a mixing tank, wherein a rotating wind wheel is arranged inside the mixing tank, the upper end and the lower end of the wind wheel are respectively connected with a bearing, the upper bearing and the lower bearing are respectively sleeved at the upper end and the lower end of the mixing tank, a piston which moves up and down is sleeved in the middle of the interior of the wind wheel, a reciprocating lead screw which is as high as the wind wheel is sleeved inside the piston, the bottom end of the reciprocating lead screw is fixedly connected with the mixing tank, the two ends of the mixing tank are connected with an air pipe and an oxygen pipe, a certain proportion of oxygen and air are respectively introduced into the mixing tank through the air pipe and the oxygen pipe, the oxygen and the air form right-handed air flow inside the mixing tank, the wind wheel drives the piston to slide up and down along the reciprocating lead screw while rotating in a single direction under the impact of the air and the oxygen, and the air and the oxygen can be mixed through the rotation of the wind wheel and the up-down sliding of the piston.

The mixing tank comprises a tank body, a first air inlet pipe and a second air inlet pipe are respectively connected to the two sides of the tank body in a right-handed mode, an air pipe is sleeved on the outer side of the first air inlet pipe, and an oxygen pipe is sleeved on the outer side of the second air inlet pipe.

The upper end of blending tank is connected with the outlet duct, the outlet duct includes the adapter sleeve, the bottom of adapter sleeve is connected with the thread bush, the thread bush is connected with the top threaded connection of blending tank, just the upper end of adapter sleeve is connected with the exhaust nozzle, the inside exhaust hole of seting up the honeycomb briquette shape of exhaust nozzle.

Wherein, the inside of outlet duct has cup jointed the filter core, the filter core is the inside cotton core of filtration that is equipped with loose gas pocket.

The wind wheel comprises a rotary drum, air holes are uniformly formed in a circular tube of the rotary drum, a W-shaped shifting piece is connected to the outer wall of the rotary drum in a counterclockwise mode, the outer side face of the shifting piece is attached to the inner circumferential face of the mixing tank, and two slide rails with equal length are connected to the inner wall of the rotary drum.

The piston comprises a support, sliding grooves are formed in two sides of the support and are sleeved on the outer side of the sliding rail, an umbrella-shaped rubber sheet is connected to the upper end face of the support, the middle portions of the rubber sheet and the support are provided with the same hole sleeved with the reciprocating lead screw, and the inner wall of the hole is connected with a guide block.

The reciprocating screw rod comprises a screw rod, the length of the screw rod is consistent with that of the wind wheel, the connecting seat is installed at the bottom of the screw rod and welded on the bottom surface of the mixing tank, positive and negative thread grooves are formed in the circumferential surface of the screw rod and are the thread grooves with the same thread pitches, opposite rotation directions and connected through transition curved surfaces at two ends.

The guide block is a crescent arc plate, and the radian of the crescent arc plate is consistent with the radians of the transition curved surfaces at the two ends of the positive and negative thread grooves.

Wherein, the middle part of the oxygen tube is connected with a control valve.

(III) advantageous effects

The invention provides a newborn air-oxygen mixer which has the beneficial effects that:

1. through connecting first intake pipe and second intake pipe respectively with air hose and oxygen hose, make air hose and oxygen hose let in oxygen and air to the inside of blending tank, utilize the gaseous vortex pressure that air hose and oxygen hose rush out to promote the plectrum and rotate, make the whole of wind wheel rotate, make pivoted wind wheel stir the mixture to the air and the oxygen that let in, the purpose that only needs the supply of oxygen flow of adjusting the oxygen hose can reach control oxygen concentration, need not electric drive, it is stable safety.

2. Through set up a piston that cup joints through the slide rail in that the rotary drum is inside, the middle part of piston cup joints with fixed reciprocal lead screw, cup joint between the positive and negative thread groove of seting up through the lead screw surface and the inside guide block of support, make the piston along with the wind wheel carries out pivoted in-process messenger guide block and leads to the slip along positive and negative thread groove, make the piston carry out regular upper and lower reciprocal slip in the inside of wind wheel, gliding in-process about the piston, not only carry out ascending stirring mixture from top to bottom to the inside gas of blending tank, can also promote the gas after the mixing of blending tank inside at the upper and lower slip in-process of piston by outlet duct department discharge, the supply of the oxygen of being convenient for.

3. Through passing through the thread bush with the outlet duct and installing in the upper end of blending tank to internally mounted at the outlet duct has the filter core, makes the inside oxygen after mixing of blending tank break up the pressure release through the filter core, prevents that the vortex that oxygen produced at the inside rotation of blending tank from causing the discomfort after the infant inhales, and the adapter sleeve top has seted up the exhaust nozzle, influences the exhaust after inhaling of oxygen.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a neonatal air-oxygen mixer according to the present application;

FIG. 2 is a cross-sectional view of a neonatal air-oxygen mixer provided herein;

FIG. 3 is a schematic view of the wind wheel and bearing installation of a neonatal air oxygen mixer provided by the present application;

FIG. 4 is a schematic view of a rotor of a neonatal air-oxygen mixer provided by the present application;

FIG. 5 is a schematic piston diagram of a neonatal air-oxygen mixer provided by the present application;

FIG. 6 is a cross-sectional view of a piston of a neonatal air-oxygen mixer provided by the present application;

FIG. 7 is a schematic view of a reciprocating lead screw of a neonatal air-oxygen mixer provided by the present application;

FIG. 8 is a schematic view of an outlet duct of a neonatal air-oxygen mixer according to the present application;

fig. 9 is a schematic cross-sectional view of a mixing tank of a neonatal air-oxygen mixer according to the present application.

In the figure: 1. a mixing tank; 11. a tank body; 12. a first intake pipe; 13. a second intake pipe; 2. an air tube; 3. an oxygen tube; 4. an air outlet pipe; 41. connecting sleeves; 42. a threaded sleeve; 43. an exhaust nozzle; 5. a filter element; 6. a wind wheel; 61. a rotating drum; 62. a shifting sheet; 63. air holes are formed; 64. a slide rail; 7. a bearing; 8. a piston; 81. a support; 82. a rubber sheet; 83. a chute; 84. a guide block; 9. a reciprocating screw; 91. a screw rod; 92. a connecting seat; 93. a positive thread groove and a negative thread groove.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-9, this embodiment provides a newborn air and oxygen mixer, which includes a mixing tank 1, a rotating wind wheel 6 is disposed inside the mixing tank 1, the upper and lower ends of the wind wheel 6 are respectively connected with a bearing 7, the upper and lower bearings 7 are respectively sleeved at the upper and lower ends of the mixing tank 1, a piston 8 moving up and down is sleeved in the middle of the inside of the wind wheel 6, a reciprocating lead screw 9 having the same height as the wind wheel 6 is sleeved inside the piston 8, the bottom end of the reciprocating lead screw 9 is fixedly connected with the mixing tank 1, the two ends of the mixing tank 1 are connected with an air tube 2 and an oxygen tube 3, the air tube 2 and the oxygen tube 3 respectively introduce oxygen and air in a certain proportion into the mixing tank 1, the oxygen and the air form a right-handed air flow inside the mixing tank 1, the wind wheel 6 also drives the piston 8 to slide up and down along the reciprocating lead screw 9 while rotating in a unidirectional rotation under the impact of the air and the oxygen, and the rotation of the wind wheel 6 and the up and down sliding of the piston 8 can mix the air and the oxygen.

The mixing tank 1 comprises a tank body 11, two sides of the tank body 11 are respectively connected with a first air inlet pipe 12 and a second air inlet pipe 13 in a right-handed rotation mode, an air pipe 2 is sleeved on the outer side of the first air inlet pipe 12, an oxygen pipe 3 is sleeved on the outer side of the second air inlet pipe 13, the first air inlet pipe 12 and the second air inlet pipe 13 are connected to two sides of the tank body 11 in the right-handed rotation mode, air and oxygen introduced into the first air inlet pipe 12 and the second air inlet pipe 13 are enabled to have a right-handed rotation initial angle when entering the tank body 11, the air and the oxygen are enabled to rotate in the mixing tank 1 to form a vortex, the wind wheel 6 is pushed to rotate by thrust of the vortex, and mixing between the air and the oxygen is completed.

The upper end of blending tank 1 is connected with outlet duct 4, outlet duct 4 includes adapter sleeve 41, the bottom of adapter sleeve 41 is connected with thread bush 42, thread bush 42 and blending tank 1's top threaded connection, and the upper end of adapter sleeve 41 is connected with exhaust nozzle 43, the inside exhaust hole of honeycomb briquette shape of having seted up of exhaust nozzle 43, adapter sleeve 41 passes through the movable one end of giving vent to anger of installing at blending tank 1 of thread bush 42, be convenient for carry out nimble dismantlement and installation between outlet duct 4 and the blending tank 1, thereby carry out 1 inside maintenance and cleanness of blending tank, safety and sanitation when using in the assurance device of being convenient for, the installation of exhaust nozzle 43 is convenient for form the inside of the dispersed income oxygen mask of pencil or oxygen case with the inside mist of blending tank 1 simultaneously, the infant of being convenient for treats.

The filter core 5 has been cup jointed to the inside of outlet duct 4, and filter core 5 is the inside cotton core of filtration that is equipped with loose gas pocket, and filter core 5 cup joints in the inside of outlet duct 4, filters 1 inside mist of blending tank, increases mist's resistance simultaneously, and the centripetal force when eliminating gas and letting in and rotating prevents that oxygen is the face guard that floods of vortex form inside, arouses that the infant is uncomfortable.

The wind wheel 6 comprises a rotary drum 61, air holes 63 are uniformly formed in a circular tube of the rotary drum 61, a W-shaped poking sheet 62 is connected to the outer wall of the rotary drum 61 in a counterclockwise mode, the outer side face of the poking sheet 62 is attached to the inner circumferential face of the mixing tank 1, two slide rails 64 with equal length are connected to the inner wall of the rotary drum 61, a plurality of poking sheets 62 uniformly connected to the outer portion of the rotary drum 61 block new air flow at the air pipe 2 and the oxygen pipe 3, the poking sheet 62 is pushed by the thrust of the new air flow to rotate, and a part of stored air and oxygen in the mixing tank 1 are scattered and mixed through the rotating poking sheet 62, and the air and the oxygen are circulated and used for mixing the air and the oxygen in the mixing tank 1.

Piston 8 includes support 81, spout 83 has been seted up to support 81's both sides, spout 83 cup joints the outside at slide rail 64, support 81's up end is connected with umbelliform sheet rubber 82, sheet rubber 82 and support 81's middle part are seted up same hole of overlapping mutually with reciprocal lead screw 9, the inner wall in hole is connected with guide block 84, support 81 passes through spout 83 and slide rail 64 cup joints the inside of connecting at wind wheel 6, and along with wind wheel 6's rotation is together rotated, sheet rubber 82 hugs closely with wind wheel 6's inner wall, promote the inside gas of wind wheel 6, promote gaseous the emission when mixing the stirring to gas.

Reciprocating screw 9 includes lead screw 91, the length of lead screw 91 is unanimous with the length of wind wheel 6, connecting seat 92 is installed to the bottom of lead screw 91, connecting seat 92 welding is at the bottom surface of blending tank 1, positive and negative thread groove 93 has been seted up on the periphery of lead screw 91, positive and negative thread groove 93 is two thread pitches the same, revolve to opposite and both ends with the thread groove that transition surface connects, lead screw 91 is fixed in the inside of blending tank 1, rotate with piston 8 is relative, connecting seat 92 that sets up on lead screw 91 drives piston 8 and carries out reciprocal slip from top to bottom, be convenient for piston 8 carries out stirring disturbance from top to bottom to gas, improve the effect of gas mixing.

The guide block 84 is a crescent arc plate, the radian of the crescent arc plate is consistent with the radians of the transition curved surfaces at two ends of the positive and negative thread grooves 93, the moon pressing plate of the guide block 84 slides inside the groove of the positive and negative thread grooves 93, and automatically turns into the reverse direction thread inside the positive and negative thread grooves 93 when the guide block moves to the transition curved surfaces along the positive and negative thread grooves 93, so that the density of reciprocating up-and-down sliding of the piston 8 is realized through the rotating wind wheel 6, and the gas after mixing is pushed by the up-and-down sliding piston 8 to be discharged.

The middle part of oxygen hose 3 is connected with the control valve, and the accurate flux to the inside oxygen of oxygen hose 3 of installation of control valve is controlled, is convenient for adjust the oxygen concentration in the mist.

Specifically, this neonate's air oxygen blender is when using: the air pipe 2 and the oxygen pipe 3 are respectively connected with a first air inlet pipe 12 and a second air inlet pipe 13 at two sides of the tank body 11, so that the air pipe 2 and the oxygen pipe 3 flush oxygen and air into the mixing tank 1 from two sides of the tank body 11, wherein the oxygen tube 3 is provided with a control valve, when in use, the oxygen tube 3 is only required to adjust the oxygen flow according to the mixed oxygen concentration required to be supplied to the sick children, thereby controlling the proportion of the air and the oxygen, a rotating wind wheel 6 is arranged in the mixing tank 1, the upper end and the lower end of the wind wheel 6 are respectively connected with a bearing 7, the wind wheel 6 and the mixing tank 1 are kept in a sleeved connection through a bearing 7, a W-shaped shifting sheet 62 is connected to the rotary drum 61, meanwhile, as the air pipe 2 and the oxygen pipe 3 are communicated with the interior of the mixing tank 1, the air forms vortex in the interior of the mixing tank 1, the rotation of the vortex pushes the plectrum 62 to enable the whole wind wheel 6 to rotate, meanwhile, the air and the oxygen which are introduced into the air pipe 2 and the oxygen pipe 3 are stirred and mixed by utilizing the rotating wind wheel 6, and the mixed gas also enters the inner part of the rotary drum 61 through the air holes 63, the interior of the rotary drum 61 is connected with a piston 8 through a slide rail 64, the middle part of the piston 8 is sleeved with a fixed reciprocating screw rod 9, the forward and backward thread groove 93 formed on the surface of the screw rod 91 is sleeved with the guide block 84 inside the bracket 81, so that the piston 8 can slide up and down along the forward and backward thread groove 93 in a reciprocating manner in the process of rotating along with the wind wheel 6, and in the process of sliding up and down of the piston 8, the gas inside the mixing tank 1 is stirred and mixed in the vertical direction, the piston 8 sliding up and down pushes the mixed gas inside the mixing tank 1 to be discharged from the gas outlet pipe 4, and the mixed gas is discharged after being scattered and decompressed through the filter element 5 inside the gas outlet pipe 4.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. A neonate's air oxygen blender, includes blending tank (1), its characterized in that: the utility model discloses a wind wheel, including blending tank (1), air wheel (6), bearing (7) and reciprocating lead screw (9), the inside of mixing tank (1) is equipped with pivoted wind wheel (6), the upper and lower both ends of wind wheel (6) respectively are connected with a bearing (7), two from top to bottom bearing (7) cup joint respectively at the upper and lower both ends of blending tank (1), just piston (8) that reciprocate has been cup jointed at the inside middle part of wind wheel (6), reciprocating lead screw (9) such as height with wind wheel (6) have been cup jointed to the inside of piston (8), the bottom and blending tank (1) fixed connection of reciprocating lead screw (9), the both ends of blending tank (1) are connected with air pipe (2) and oxygen pipe (3), air pipe (2) and oxygen pipe (3) let in certain proportion oxygen and air respectively to the inside of blending tank (1), and oxygen and air form the air current of dextrorotation in the inside of blending tank (1), wind wheel (6) also drive piston (8) and slide from top to bottom along reciprocating lead screw (9) under the impact of air and oxygen, the rotation of wind wheel (6) and piston (8) all can mix the air and the up-and-down slip.

2. A neonatal air oxygen mixer as claimed in claim 1 wherein: the blending tank (1) is including a tank body (11), first intake pipe (12) and second intake pipe (13) are connected to the both sides of the tank body (11) dextrorotation respectively, air pipe (2) have been cup jointed in the outside of first intake pipe (12), oxygen hose (3) have been cup jointed in the outside of second intake pipe (13).

3. A neonatal air oxygen mixer as claimed in claim 1 wherein: the upper end of blending tank (1) is connected with outlet duct (4), outlet duct (4) are including adapter sleeve (41), the bottom of adapter sleeve (41) is connected with thread bush (42), the top threaded connection of thread bush (42) and blending tank (1), just the upper end of adapter sleeve (41) is connected with exhaust nozzle (43), the inside exhaust hole of seting up the honeycomb briquette shape of exhaust nozzle (43).

4. A neonatal air oxygen mixer as claimed in claim 3 wherein: the filter element (5) is sleeved inside the air outlet pipe (4), and the filter element (5) is a filter cotton core with loose air holes inside.

5. A neonatal air oxygen mixer as claimed in claim 1 wherein: the wind wheel (6) comprises a rotary drum (61), air holes (63) are uniformly formed in a circular tube of the rotary drum (61), a W-shaped shifting sheet (62) is connected to the outer wall of the rotary drum (61) in a counterclockwise mode, the outer side face of the shifting sheet (62) is attached to the inner circumferential face of the mixing tank (1), and two slide rails (64) with equal length are connected to the inner wall of the rotary drum (61).

6. A neonatal air oxygen mixer as claimed in claim 1 wherein: piston (8) include support (81), spout (83) have been seted up to the both sides of support (81), spout (83) cup joint in the outside of slide rail (64), the up end of support (81) is connected with umbelliform sheet rubber (82), the same hole of overlapping mutually with reciprocal lead screw (9) is seted up at the middle part of sheet rubber (82) and support (81), and the inner wall in hole is connected with guide block (84).

7. A neonatal air oxygen mixer as claimed in claim 6 wherein: reciprocal lead screw (9) include lead screw (91), the length of lead screw (91) is unanimous with the length of wind wheel (6), connecting seat (92) are installed to the bottom of lead screw (91), connecting seat (92) welding is at the bottom surface of blending tank (1), positive and negative thread groove (93) have been seted up on the periphery of lead screw (91), positive and negative thread groove (93) are that two pitches are the same, revolve to opposite and both ends are with the thread groove that transition surface connects.

8. The neonatal air-oxygen mixer of claim 7, wherein: the guide block (84) is a crescent arc plate, and the radian of the crescent arc plate is consistent with the radian of the transition curved surfaces at the two ends of the positive and negative thread grooves (93).

9. A neonatal air oxygen mixer as claimed in claim 1 wherein: the middle part of the oxygen tube (3) is connected with a control valve.