CN107551483B - Restore the device of practice for lung functions - Google Patents

Restore the device of practice for lung functions Download PDF

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Publication number
CN107551483B
CN107551483B CN201710787863.1A CN201710787863A CN107551483B CN 107551483 B CN107551483 B CN 107551483B CN 201710787863 A CN201710787863 A CN 201710787863A CN 107551483 B CN107551483 B CN 107551483B
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China
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end
tube
cavity
equipped
control valve
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CN201710787863.1A
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Chinese (zh)
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CN107551483A (en
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李沛臻
李全科
时淑华
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李沛臻
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Publication of CN107551483B publication Critical patent/CN107551483B/en

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Abstract

The invention belongs to medical recovery instrument fields, for the device for restoring practice for lung functions, including two expiration mouths, tee tube, control valve, Response Division, choke tube, test section and control unit, one expiration mouth, control valve and Response Division each are attached to threeway pipe port, another expiration mouth is connect with choke tube, the outlet of control valve and choke tube is respectively connected to the Venturi tube in test section, Response Division includes setting in the elastic membrane of foil gauge, the entrance of Venturi tube has set rotation helical blade, outlet is set except rotation prismatic blade, sensing element detection expiration physical parameter is set at the minimum of lumen section, control centre changes according to foil gauge to be set and controls control valve events, the parameter signal of acquisition is analyzed and processed.Being resumed training using the device can fully understand and resume training process, provide data reference further to resume training, facilitate setting rationally, science resume training scheme, promote lung functions and restore the effect taken exercise.

Description

Restore the device of practice for lung functions

Technical field

The present invention relates to medical assistive device fields, and in particular to the relevant rehabilitation appliances in breathing field, especially suitable for Division of respiratory disease uses, for a kind of device for restoring practice for lung functions.

Background technique

Lung function, that is, respiratory function, that is, lung absorb oxygen, and the function of carbon dioxide is discharged.It include ventilatory function and Ventilatory two parts.In division of respiratory disease field, almost all of respiratory disease can cause different degrees of damage to lungs Evil, serious person can cause decline in pulmonary function.Slight decline in pulmonary function, clinical symptoms are not obvious.Severe patient has breathing It is difficult, cannot lie down, phenomena such as activity is difficult.In order to preferably improve the state of an illness of (chronic bronchitis, pulmonary emphysema) patient, prolong The development process of slow disease, in addition to routinely active treatment, it is also necessary to reinforce the rehabilitation training of lung function.

Patient mainly performs physical exercise to respiratory muscle when restoring lung function, at present clinically traditional enhancing respiratory muscle The method of strength, recovery respiratory muscle fatigue and improvement respiratory muscle function is mainly that controlling is breathed, deeply breathed, wrinkle lip breathes, determines When maximum walking distance experiment and treadmill experiment etc..Wherein, abdominal respiration method (i.e. diaphragm motion exercise): patient's horizontal position or Seat or vertical position, two hands point put chest, abdomen, and nasal inhalation when air-breathing, stomach wall is prominent as far as possible, contraction of diaphragm, when expiration in abdomen It receives, is breathed out with mouth, it is desirable that 7-9 beats/min of respiratory rate, daily early, middle and late each white silk 1 time, 5-10 points/times.Air-breathing in respiratory It is active, expiration is passively (expiratory duration extends and contracting lip).Breathing can be reduced by deep slow abdominal respiration exercise Frequency, to reduce consumption of the respiratory muscle to oxygen and energy.

The problem of in view of dedicated lung's device for healing and training is lacked at present, this patent, which devises one kind, can be used in lung The device of functional rehabilitation practice, the effect that can have been obtained when being resumed training with more patient as lung functions help patient early Restore lung's function.

Summary of the invention

Aiming at the problem that lacking dedicated lung functions device for healing and training at present, the present invention provides one kind can be used in Lung functions restore the device of practice, to help patient to carry out lung's rehabilitation training, have and safely, effectively assist patient most Early the advantages of restoring normal lung's breathing function.

The technical scheme adopted by the invention to solve the technical problem is that: a kind of dress restoring practice for lung functions It sets, including two expiration mouths, T-shaped tee tube, control valve, Response Division, choke tube, test section and control unit, the control Valve processed is solenoid electric valve, and the lumen middle section of the choke tube is contracting cavity configuration;One of expiration mouth, control valve and Response Division It each is attached to the threeway pipe port, the gas outlet of control valve is connected to the venturi being arranged in the test section by hose Tube inlet end;Another expiration mouth is connect with the inlet end of the choke tube, and the outlet side of choke tube passes through described in hose connection The venturi tube inlet end being arranged in test section;

The Response Division includes the attachment base connecting with the tee tube, and the attachment base is equipped with axial cavity, logical The middle part of chamber is equipped with strain component, the foil gauge that the strain component includes elastic membrane and is fixed in elastic membrane, and foil gauge connects It is connected to outer lead road.

Rotation helical blade has been arranged in the inlet of the Venturi tube, and exit setting is except rotation prismatic blade.The venturi Sensing element is equipped at the lumen section minimum of pipe, the sensing element connects amplifier.

The control valve, Response Division and amplifier are connected to described control unit.Described control unit can be according to described The variation of foil gauge specifically sets and controls the open/close states of the control valve, can carry out at analysis to the transmission signal of acquisition Reason.It at least requires most indicate real-time pressure and expiratory gas flow of the exhaled gas of respiration capability etc. at energy measuring and calculating after analysis processing Parameter value or waveform diagram.

Preferably, filtering wet end is removably equipped in the lumen of the expiration mouth, filter screen is in exhaled gas Impurity be filtered, and make air-flow even into the lumen of tee tube or choke tube.

Further, can be on the outer wall of expiration mouth, the position close to free port sets annular recess, and lip is embedded in when use In annular recess, in order to contracting lip.

Preferably, the control valve includes the threeway cavity portion in T-shaped and the control that is connected at a port of threeway cavity portion Portion.The tee tube is connected with the coaxial side ports in the port for connecting the control unit on the threeway cavity portion.The control Portion include casing, with the guide rod of casing coaxial arrangement, the spring in extended state being sleeved on guide rod and permanent magnet and Electromagnetic part.

One end of described sleeve pipe connects tee tube, and the other end connects end seat, and end seat medial surface is embedded in and is fixed with the electromagnetism Portion, the electromagnetic part connect control unit.The ring-type radially extended is equipped in the lumen of one end of described sleeve pipe connection tee tube The outer end face of flange, collar flange is equipped with sealing ring one.One end of the guide rod penetrates in described sleeve pipe, and installs column Seat stand is embedded in the fixed permanent magnet on the free end face of the column seat stand.It is convex with ring-type that the spring is placed in column seat stand Between edge.The other end of the guide rod is placed in outside described sleeve pipe, and is equipped with the collar flange to extend radially outwardly, on collar flange It is fixed with the sealing-plug of the threeway cavity portion lumen for blocking the setting that matches.

Preferably, the attachment base is connected through a screw thread with tee tube, is strained in component for the annular of elastic membrane to be arranged Also to be threadedly coupled between seat and the inner cavity of attachment base, and the rib hole that the outer end setting of annular seating is used for installing and dismounting, rib The internal diameter in hole is greater than the through-hole aperture of its inner end setting;The port of attachment base is equipped with cock cap.

Preferably, the lumen middle section of the choke tube is choked flow chamber, and the chamber diameter of the choked flow chamber is less than in the lumen at both ends Diameter.Generally make 1/3 to 1/6, preferably the 1/4 of the former the latter.

Preferably, the choke tube includes that front tube, stick harness body and rear end pipe, front tube are connected with rear end pipe, stick harness Body is placed in the connection lumen of front tube and rear end pipe.Have conical cavity in the middle part of the lumen of the front tube, the conical cavity it is big The downstream direction that mouth end is flowed towards air-flow successively sets ventilation counterbore and screw-threaded counterbore along axial direction in the downstream side of conical cavity, The aperture of middle ventilation counterbore is greater than the major diameter of conical cavity, less than the internal diameter of screw-threaded counterbore.

One end of the rear end pipe is connected in the screw-threaded counterbore, and the other end is matched with hose and is connected in test section Venturi tube inlet end.

One end of the stick harness body be set as with the matched bullet of the conical cavity, the axial extension of bullet is small In the axial extension of conical cavity.The other end of the stick harness body is connected in the counterbore being arranged on the rear end end surfaces.

On the stick harness body, it is distributed with radial slot in surrounding on the outer wall in bullet downstream side, in the end face of the other end It is equipped with stomidium, stomidium is connected to the radial slot.

The choke tube structure of above-mentioned design, the length of part is threadedly coupled by adjusting front tube with rear end pipe, can be right Bullet is adjusted with conical cavity matching relationship, and then adjusts the size for forming gap (constituting contracting cavity configuration) therebetween, And the choked flow ability of choke tube is adjusted, it is used with can adapt to more patients.

Preferably, it is encapsulated in casing from expiration mouth rear end to test section end, and be equipped with heat source to make in casing Keep constant temperature;The air exit end of the test section is connected with condensation part, and the outlet cavity of the condensation part is taper cavity, and Osculum end is on the outside;The condensation part includes lower case and upper housing, and the inner cavity of the lower case is arc groove, and arc is recessed Leakage fluid dram is arranged in the lowest part of slot;The part that the wall body of the upper housing corresponds to the lower case arc groove is equipped with cold medium Chamber, the downwardly projecting interior bottom of the cold medium chamber is in arc surfaced, and the extreme lower position of interior bottom cambered surface is not higher than the entrance of condensation part Hold the height of central axis and condensation part outlet cavity central axis;The upside of the cold medium chamber is equipped with medium circulation entrance, Side wall is exported equipped with medium circulation;The medium circulation entrance and medium circulation outlet be connected to cold medium source outlet and Inlet tube.

The beneficial effects of the present invention are: the present invention specially devises a kind of device for restoring practice for lung functions, more The deficiency of existing recovering aid equipment is mended.Resuming training for lung functions is carried out using the device, can fully understand recovery Training process provides data reference further to resume training, and facilitates and sets reasonable, the scientific scheme that resumes training, promotion lung The effect that portion's functional rehabilitation is taken exercise helps patient to restore lung's function early.

Detailed description of the invention

Fig. 1 is Integral connection structure schematic diagram of the invention;

Optimization structural schematic diagram of the Fig. 2 between expiration mouth, tee tube, control valve and Response Division;

Fig. 3 is the structural schematic diagram of control valve in scheme shown in Fig. 2, and f3.1 is open state, and f3.2 is closed state;

Fig. 4 is the assembly structure diagram of venturi portion in test section;

Fig. 5 .1 is the assembling structure schematic diagram of Response Division;

Fig. 5 .2 is the separate structure schematic diagram of Response Division;

Fig. 6 is the structural schematic diagram of the first embodiment of choke tube;

Fig. 7 .1 is the assembling structure schematic diagram of the second embodiment of choke tube;

Fig. 7 .2 is the separate structure schematic diagram of the second embodiment of choke tube;

Fig. 7 .2.1 is the end structure illustration of stick harness body;

Fig. 7 .2.2 be Fig. 7 .2 in A-A to diagrammatic cross-section;

Fig. 7 .2.3 is the diagrammatic cross-section of B-B direction in Fig. 7 .2;

Fig. 8 .1 is the schematic front view of condensation part;

Fig. 8 .2 is the main view diagrammatic cross-section of condensation part.

1 expiration mouth, 11 filtering wet ends, 12 arcuation concave rings, 2 tee tubes, 3 control valves,

31 threeway cavity portions

32 control units, 321 casings, 3211 collar flanges, 3212 sealing rings one, 322 guide rods, 3221 sealing-plugs, 323 bullets Spring, 324 permanent magnets, 3241 interlayer boards, 325 electromagnetic parts, 3251 end seats, 3252 sealing rings two

4 Response Divisions, 41 cylinder bases, 42 strain components, 421 elastic membranes, 422 foil gauges, 423 rib holes, 43 cock caps

5 choke tubes, 5.1 choked flow chambers, 5.2 resistive portions, 51 front tubes, 511 conical cavities, 512 ventilation counterbores, 513 screw threads are heavy Hole, 52 stick harness bodies, 521 bullets, 522 radial slots, 523 stomidiums, 53 rear end pipes

6 test sections, 61 Venturi tubes, 62 dead rings, 63 rotation helical blades, 64 except rotation prismatic blade, 65 sensing elements, 66 Amplifier

71 lower cases, 711 leakage fluid drams, 72 upper housings, 721 cold medium chambers, 7211 medium circulation entrances, 7212 medium circulations Outlet

Specific embodiment

Structure depicted in Figure of description, ratio, size etc., only to cooperate the revealed content of specification, with Understand for those skilled in the art and read, be not intended to limit the invention enforceable qualifications, therefore does not have technically Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated not influencing the present invention Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Meanwhile Cited such as "upper", "lower", "front", "rear", " centre " term in this specification are merely convenient to being illustrated for narration, and It is non-that to limit the scope of the invention, relativeness is altered or modified, under the content of no substantial changes in technology, when Also it is considered as the enforceable scope of the present invention.

A kind of device restoring practice for lung functions as shown in Figure 1, including two expiration mouths 1, T-shaped threeway Pipe 2, control valve 3, Response Division 4, choke tube 5, test section 6 and control unit, the control valve 3 are solenoid electric valve, the resistance The lumen middle section of flow tube 5 is contracting cavity configuration.One of expiration mouth 1, control valve 3 and Response Division 4 each are attached to the threeway The gas outlet of 2 port of pipe, control valve 3 is connected to the venturi tube inlet end being arranged in the test section 6 by hose.Another Expiration mouth 1 is connect with the inlet end of the choke tube 5, and the outlet side of choke tube 5 is connected in the test section 6 by hose to be arranged Venturi tube inlet end.

As shown in Fig. 5 .1, Fig. 5 .2, the Response Division 4 includes the attachment base 41 connecting with the tee tube 2, the connection Seat 41 is equipped with strain component 42 equipped with axial cavity in the middle part of cavity, and the strain component 42 includes elastic membrane 421 and fixes Foil gauge 422 in elastic membrane 421, foil gauge 422 are connected with outer lead road.Elastic membrane 421 seals the cavity of attachment base 41 Block, under pressure 421 Tensile of elastic membrane and deform, foil gauge 422 can generate synchronous deformation.Attachment base 41 and threeway Pipe 2 can be connected through a screw thread, and be strained in component 42 for being arranged between the annular seating of elastic membrane 421 and the inner cavity of attachment base 41 also To be threadedly coupled, and the outer end setting rib hole 423 of annular seating is used for installing and dismounting, and the internal diameter in rib hole 423 is greatly in the inner The through-hole aperture of setting is held, to prevent in installing and dismounting operation, tool damages elastic membrane.It can in the port of attachment base Cock cap 43 is set, elastic membrane 421 is protected.

The control valve 3, Response Division 4 and amplifier 5 are connected to described control unit (containing microprocessing unit to Response Division The incoming signal of the signal and amplifier of transmission is analyzed and processed).Described control unit can be according to the foil gauge 422 Variation specifically sets and controls the opening and closing of number control valve 3.The gas that described control unit can be detected according to sensing element Stream mode, after setting and controlling the unlatching of control valve 3, the time being closed again, usually in the later period of exhaling, when sensing element detects When less than there is the air-flow flowed through, the control valve closure having been switched on just is controlled.In other words, the deformation caused by foil gauge when internal pressure Amount reach control unit setting open control valve in the range of after, control unit then drives control valve to be opened, even if (every It is secondary) end of breath formed internal pressure no longer control unit setting make control valve open in the range of, control valve will not Automatic closure, i.e., at this time control valve still it is electric, it is in the conductive state.Described control unit can receive the amplifier transmission Signal handled, calculate the real-time pressure and expiratory gas flow of exhaled gas.

After the gas of exhalation enters tee tube, certain internal pressure is formed in the lumen of tee tube, is deformed elastic membrane, And then foil gauge is deformed, change its resistance value, the size for forming internal pressure is big by the diameter of expiration ability and choke tube contracting cavity configuration Small influence.Internal pressure is different, and the deflection (resistance value) of foil gauge is different, and foil gauge, to control unit, is being controlled by connection Unit can be according to the opening and closing of the variation control control valve of the resistance value size of foil gauge.So the real value of foil gauge resistance value is and exhales The real value of atmospheric pressure is corresponding, and the real value or even expiratory pressure of breath pressure thus can be obtained after control unit is handled The waveform diagram of power variable condition.Before control valve is not turned on, the real-time change state of foil gauge is able to reflect expiration initial shape The physiological parameter information of state.

When using the vent line that choke tube is arranged, dependence is contracting cavity configuration.The general vent line is instructed for early period Practice.In the internal pressure that threeway tube cavity is formed, the deflection caused by foil gauge, the corresponding resistance value model for making to control valve events It encloses, is greater than the blow gas pressure formed by choke tube, the maximum value caused by foil gauge.Certainly, in training process In, it is not that can not set foil gauge and deform corresponding resistance value to be less than the blow gas pressure that is formed by choke tube, it can be to strain Maximum value caused by piece has more acurrate, comprehensive understanding to the process for training of exhaling to get more parameter values.

The limit section (being assumed to be 0.1a to 1a) of foil gauge resistance value is divided into multiple sections, concretely 0.1a- 0.35a, 0.35a -0.65a, 0.65a -0.8a, 0.8a -0.95a etc., end value belongs to next interval range.Such as choke tube The internal pressure of formation makes foil gauge deformation occurs corresponding resistance value limit 0.4a, then can set foil gauge deformation occurs it is right When the resistance value answered is less than 0.4a, control valve can not be turned on.If (the choked flow effect of choke tube itself has one to set the tone Between main plot, then under different conditions, corresponding upper limit resistance value have it is multiple, so setting is generally made foil gauge resistance value pair That answers can start the range of control valve, referring to the maximum rating for the internal pressure that choke tube is capable of forming).

In short, deformation occurs for foil gauge, when change in resistance is within the scope of which kind of, just start control valve, it is specifically logical Control unit flexible modulation is crossed, is needed according to the people and the time and different.Such design can not only know expiratory pressure in training process Power state value, and the device can be according to the people and the time set, guarantee training of safety, be effectively performed.

As shown in figure 4, rotation helical blade 63 has been fixedly installed by dead ring 62 in the inlet of the Venturi tube 61, out By the fixed setting of dead ring 62 except rotation prismatic blade 64 at mouthful.Sensitive member is equipped at the lumen section minimum of the Venturi tube 61 Part 65, the sensing element 65 connect amplifier 66.The sensing element 65 is located at the smallest cross-sectional of Venturi tube 61, surveys Measure the change frequency of the distribution of (gas) pressure or velocity flow profile.Using there are many 65 measurement methods of sensing element, such as it can be used Foil gauge or thermistor are as sensing element.Use thermistor Shi Yingjia thin glass cover with vibrationproof and anti-pollution.Play rotation spiral shell Vane piece 63 can make to enter the gas of Uniform Flow in pipeline and entirely rotate and generate vortex, and obtain air-flow vibration frequency and The parameters such as flow velocity calculate total flow after control assembly processing operation.

Described control unit specifically can set and control the opening and closing shape of the control valve according to the variation of the foil gauge State can be analyzed and processed the transmission signal obtained from Response Division and test section.It at least requires to survey after analysis processing Parameter values or the waveform diagrams such as real-time pressure and the expiratory gas flow of the exhaled gas of respiration capability can be most indicated at calculation.Signal is carried out The software section of analysis processing is not belonging to the claimed range of this patent, the core of this patent be how reliable design, practical Hardware configuration, to obtain in exhalation process with physiologic information parameter existing for expiration behavior.

After signal carries out noise reduction process by the incoming control assembly of amplifier, entering signal processing and analysis module are carried out each The analytic operation of kind parameter.Control unit can be by the airstream vibration frequency of real-time monitoring, by display device with the shape of waveform Formula is shown, to intuitively show the state change of expiration, observes training effect, can be to incoming signal at Reason, obtains breath pressure changing value and expiration amount changing value and total value.

The resistance value section that the corresponding control control valve in Response Division is opened can be adjusted, or change resistance according to trained progress The cavity diameter of flow tube changes internal pressure value when training early period.Because when exhaled gas, there is centainly interior in ventilation pipe Pressure, it is possible to make to increase oral cavity and airway pressure in expiratory phase, prevent small airway from falling into too early and close, reduce alveolar excessive Residual gas.So respiratory rate can be reduced, increase tidal volume has so as to improve the effective ventilatory volume of alveolar by resuming training Conducive to the intake of oxygen and the discharge of carbon dioxide.

As shown in Fig. 2, being removably equipped with filtering wet end 11 in the lumen of the expiration mouth 1, filter screen is to exhalation Impurity in gas is filtered, and makes air-flow even into the lumen of tee tube 2 or choke tube 5.Preferably, it can exhale On the outer wall of mouth 1, the position close to free port sets annular recess 12, when use in lip insertion annular recess 12, in order to Contracting lip.

As shown in Figure 2 to Figure 3, the control valve 3 includes the threeway cavity portion 31 in T-shaped and is connected to threeway cavity portion 31 1 Control unit 32 at port.Institute is connected with the coaxial side ports in the port for connecting the control unit 32 on the threeway cavity portion 31 State tee tube 2.Such conducting cavity configuration, without barrier in venting cavity body, can be prevented because chamber is connected under aeration status Part choked flow caused by interior barrier, preferably can be sent to Response Division for breath pressure.Specifically,

The control unit 32 includes casing 321, the guide rod 322 being coaxially disposed with casing 321, is sleeved on guide rod 322 Spring 323 and permanent magnet 324 and electromagnetic part 325 in extended state.

One end of described sleeve pipe 321 connects tee tube 2, and end seat 3251, end seat 3251 and casing is arranged in the port of the other end Sealing ring 2 is set between 321 opposite face.Shown 3251 medial surface of end seat is embedded in and is fixed with the electromagnetic part 325, the electricity Magnetic portion 325 connects control unit.It is convex that described sleeve pipe 321 connects the ring-type for being equipped with and radially extending in the lumen of one end of tee tube 2 The outer end face of edge 3211, collar flange 3211 is equipped with sealing ring 1.One end of the guide rod 322 penetrates described sleeve pipe In 321, and column seat stand is installed, the fixed permanent magnet 324 is embedded on the free end face of the column seat stand.The spring 323 are placed between column seat stand and collar flange 3211.The magnetic pole of the electromagnetic part 325 and 324 opposite face of permanent magnet is according to bullet The size variation of property 421 deflection of film (being substantially foil gauge deflection).Specifically.Starting, atmospheric pressure is smaller, bullet Property film deformation it is smaller when, electromagnetic part 325 is repelled each other with permanent magnet 324, and make control valve 3 closure;With the increase of air pressure, elastic membrane Deflection increases, and the current direction reversion of electromagnetic part 325 keeps electromagnetic part 325 and permanent magnet 324 attracting, and opens control valve 3 It opens.The other end of the guide rod 322 is placed in outside described sleeve pipe 321, and is equipped with the collar flange to extend radially outwardly, collar flange On be fixed with the sealing-plug 3221 of 31 lumen of threeway cavity portion for blocking the setting that matches.

As shown in the f3.1 of Fig. 3, after the energization of electromagnetic part 325 and after breath pressure reaches a certain level, meeting and permanent magnet 324 is attracting, the sealing ring 1 being arranged on the collar flange of fixing seal plug 3221 and 3211 outer end face of collar flange Contact forms sealing structure, and sealing ring 1 also has buffer function.Control valve 3 is in the conductive state at this time.To realize peace Dress, guide rod 322 and column seat stand have been set as separate structure, so interlayer board 3241 easily is arranged in the lower end of permanent magnetic portion 324.Instead It has just started electromagnetic part 325 after electromagnetic part 325 is powered and has repelled with 324 phase of permanent magnet as shown in the f3.2 of Fig. 3, compressed spring 323 and move inward guide rod 322, casing 321 is connected the lumen inner end of the one end of tee tube 2 by final sealing-plug 3221 Mouth seals up, and control valve 3 is in closed state at this time.Spring 323 has buffer effect.

As shown in fig. 6, the lumen middle section of the choke tube 5 is choked flow chamber 5.1, the chamber diameter of the choked flow chamber 5.1 is less than two The lumen diameter at end.Generally make 1/3 to 1/6, preferably the 1/4 of the former the latter.

As shown in Fig. 7 .1 to 7.2.3, the choke tube 5 includes the resistance that front tube 51, stick harness body 52 and rear end pipe 53 are constituted Stream portion 5.2, wherein front tube 51 is connected with rear end pipe 53, and stick harness body 52 is placed in the connection lumen of front tube 51 Yu rear end pipe 53 In.

There is conical cavity 511 in the middle part of the lumen of the front tube 51, what the big opening end of the conical cavity 511 was flowed towards air-flow Downstream direction successively sets ventilation counterbore 512 and screw-threaded counterbore 513 along axial direction in the downstream side of conical cavity 511, wherein counterbore of ventilating 512 aperture is greater than the major diameter of conical cavity 511, less than the internal diameter of screw-threaded counterbore 513.One end of the rear end pipe 53 is connected to institute It states in screw-threaded counterbore 513, the other end matches the venturi tube inlet end being connected in test section with hose.

One end of the stick harness body 52 is set as and the matched bullet 521 of the conical cavity 511, the axial direction of bullet 521 Development length is not less than the axial extension of conical cavity 511.The other end of the stick harness body 52 is connected to the rear end pipe 53 In the counterbore being arranged on end face.On the stick harness body 52, radial slot is distributed in surrounding on the outer wall in 521 downstream side of bullet 522, it is equipped with stomidium 523 in the end face of the other end, stomidium 523 is connected to the radial slot 522.

The choke tube structure of above-mentioned design, the length of part, energy are threadedly coupled by adjusting front tube 51 with rear end pipe 53 It is enough that bullet 521 and 511 matching relationship of conical cavity are adjusted, and then adjust and form gap (composition contracting chamber knot therebetween Structure) size, and adjusting the choked flow ability of choke tube, being used with can adapt to more patients.In specific design size parameter When, when front tube 51 and rear end pipe 53 preferably being made to relatively move one, the conducting section equivalent of contracting cavity configuration makes and (front tube 51 Between rear end pipe 53) axially opposing amount of movement is proportional, and it is preferably linear.

Scheme according to the present invention compensates for the deficiency of existing recovering aid equipment.Lung functions are carried out using the device Resume training, can fully understand the process of resuming training, provide data reference further to resume training, setting is facilitated to close Reason, science resume training scheme, promote lung functions and restore the effect taken exercise, patient is helped to restore lung's function early.

As shown in Fig. 8 .1 to Fig. 8 .2, in order to which the steam in exhaled gas is effectively treated, go out in the exhaust of the test section Mouth is connected with condensation part, and the rear that the arrival end of condensation part is docked at test section Venturi tube (passes through method with the shell of test section Orchid connection), the outlet cavity of condensation part is taper cavity, and osculum end is on the outside.The condensation part includes lower case 71 and upper Shell 72.The inner cavity of the lower case 71 is arc groove, and leakage fluid dram is arranged in the lowest part of arc groove.The upper housing 72 Wall body correspond to the part of 71 arc groove of lower case and be equipped with cold medium chamber 721, the interior bottom of the cold medium chamber 721 is downward Protrusion is in arc surfaced, and the extreme lower position of interior bottom cambered surface is not higher than the arrival end central axis and condensation of (preferably shorter than) condensation part The height of portion's outlet cavity central axis.The upside of the cold medium chamber 721 is equipped with medium circulation entrance 7211, corresponding condensation part The side side wall of outlet cavity is equipped with medium circulation outlet 7212.Medium circulation entrance 7211 and medium circulation outlet 7212 connect It is connected to the outlet and inlet tube in cold medium source.In order to guarantee that exhaled gas will not coagulate during expiration mouth to test section It bears excessive droplet and coagulates and fall in the duct, be encapsulated in casing from expiration mouth rear end to test section end, and by setting Setting heat source makes to keep constant temperature in casing, and specific thermostat temperature needs to be adjusted according to the air themperature of use environment, generally preferably exists 30 degrees Celsius or more.The tube wall (outer wall including control valve) of heating tape or ventilation pipe can also be set outside ventilation pipe For cavity format, the thermal medium of circulation is passed through in cavity.

If from the casing that expiration mouth rear end is not encapsulated in constant temperature to test section end section, in order to avoid ventilation The excessive steam of condensation generally in use for some time should be passed through hot wind and handle pipeline, and simultaneously may be used in pipeline Sterilization processing is carried out to ventilation pipe.Even if being provided with the casing of constant temperature, should also make at sterilization in use for some time Reason.

In the inventive solutions, it is preferred process mode to the steam contained in expiration, can also exhaling The rear end of mouth is handled in advance, and dry gas stream is then made to enter the preposition processing mode of control valve and choke tube, preposition place again The structure of reason mode is referred to the condensation part structure of diagram, and the outlet cavity of condensation part can be taper cavity or helical cavity Road, one-way when guaranteeing that air-flow passes through condensation part.

The principle of the present invention and its effect is only illustrated in above embodiment, and is not intended to limit the present invention.This hair It is bright to be improved under the premise of without prejudice to overall thought there are many more aspect, it all can be for those skilled in the art Without prejudice under spirit and scope of the invention, can carry out modifications and changes to above-described embodiment.Therefore, technical field such as Middle all equivalent modifications for being completed without departing from the spirit and technical ideas disclosed in the present invention of tool usually intellectual or Change, should be covered by the claims of the present invention.

Claims (9)

1. it is a kind of for lung functions restore practice device, it is characterised in that: including two expiration mouths, T-shaped tee tube, Control valve, Response Division, choke tube, test section and control unit, the control valve are solenoid electric valve, the lumen of the choke tube Middle section is contracting cavity configuration;One of expiration mouth, control valve and Response Division each are attached to the threeway pipe port, control valve Gas outlet is connected to the venturi tube inlet end being arranged in the test section by hose;Another expiration mouth and the choke tube Inlet end connection, the outlet side of choke tube connects the venturi tube inlet end being arranged in the test section by hose;
The Response Division includes the attachment base connecting with the tee tube, and the attachment base is equipped with axial cavity, in cavity Middle part is equipped with strain component, the foil gauge that the strain component includes elastic membrane and is fixed in elastic membrane, and foil gauge is connected with Outer lead road;
Rotation helical blade has been arranged in the inlet of the Venturi tube, and exit setting is except rotation prismatic blade;The Venturi tube Sensing element is equipped at the minimum of lumen section, the sensing element connects amplifier;
The control valve, Response Division and amplifier are connected to described control unit;Described control unit can be according to the strain The variation of piece specifically sets and controls the open/close states of the control valve, can be analyzed and processed to the transmission signal of acquisition.
2. the device according to claim 1 for restoring practice for lung functions, it is characterised in that: the pipe of the expiration mouth It is intracavitary to be removably equipped with filtering wet end.
3. the device according to claim 1 or 2 for restoring practice for lung functions, it is characterised in that: the expiration mouth Outer wall on, set annular recess close to the position of free port.
4. the device according to claim 1 or 2 for restoring practice for lung functions, it is characterised in that:
The control valve includes the threeway cavity portion and the control unit that is connected at a port of threeway cavity portion in T-shaped;The threeway The tee tube is connected with the coaxial side ports in the port for connecting the control unit on cavity portion;
The control unit include casing, with the guide rod of casing coaxial arrangement, the spring in extended state that is sleeved on guide rod, And permanent magnet and electromagnetic part;
One end of described sleeve pipe connects tee tube, and the other end connects end seat, and end seat medial surface is embedded in and is fixed with the electromagnetic part, institute State electromagnetic part connection control unit;It is equipped with the collar flange radially extended in the lumen of one end of described sleeve pipe connection tee tube, The outer end face of collar flange is equipped with sealing ring one;
One end of the guide rod penetrates in described sleeve pipe, and installs column seat stand, embedding on the free end face of the column seat stand The fixed permanent magnet of dress;The spring is placed between column seat stand and collar flange;
The other end of the guide rod is placed in outside described sleeve pipe, and is equipped with the collar flange to extend radially outwardly, solid on collar flange The fixed sealing-plug for being equipped with the threeway cavity portion lumen for blocking the setting that matches.
5. the device according to claim 1 for restoring practice for lung functions, it is characterised in that: the company of the Response Division Joint chair is connected through a screw thread with tee tube, is strained in component for being arranged between the annular seating of elastic membrane and the inner cavity of attachment base also To be threadedly coupled, and the rib hole that the outer end setting of annular seating is used for installing and dismounting, the internal diameter in rib hole are arranged greater than its inner end Through-hole aperture;The port of attachment base is equipped with cock cap.
6. the device according to claim 1 for restoring practice for lung functions, it is characterised in that: the pipe of the choke tube Chamber middle section is choked flow chamber, and the chamber diameter of the choked flow chamber is less than the lumen diameter at both ends.
7. the device according to claim 6 for restoring practice for lung functions, it is characterised in that: the pipe of the choke tube Chamber middle section is choked flow chamber, and the chamber diameter of the choked flow chamber is the 1/4 of the lumen diameter of its front end.
8. the device according to claim 1 for restoring practice for lung functions, it is characterised in that:
The choke tube includes that front tube, stick harness body and rear end pipe, front tube are connected with rear end pipe, and stick harness body is placed in front tube In the connection lumen of rear end pipe;
There is conical cavity in the middle part of the lumen of the front tube, the downstream direction that the big opening end of the conical cavity is flowed towards air-flow, in The downstream side of conical cavity successively sets ventilation counterbore and screw-threaded counterbore along axial direction, wherein the aperture of ventilation counterbore is greater than the big of conical cavity Diameter, less than the internal diameter of screw-threaded counterbore;
One end of the rear end pipe is connected in the screw-threaded counterbore, and the other end matches the literary mound being connected in test section with hose In tube inlet end;
One end of the stick harness body is set as being not less than cone with the matched bullet of the conical cavity, the axial extension of bullet The axial extension of shape chamber;The other end of the stick harness body is connected in the counterbore being arranged on the rear end end surfaces;
On the stick harness body, it is distributed with radial slot in surrounding on the outer wall in bullet downstream side, is set on the end face of the other end There is stomidium, stomidium is connected to the radial slot.
9. the device according to claim 1 for restoring practice for lung functions, it is characterised in that:
It is encapsulated in casing from expiration mouth rear end to test section end, and be equipped with heat source to make to keep constant temperature in casing;
The air exit end of the test section is connected with condensation part, and the outlet cavity of the condensation part is taper cavity, and osculum End is on the outside;
The condensation part includes lower case and upper housing, and the inner cavity of the lower case is arc groove, and arc groove is minimum Place's setting leakage fluid dram;
The wall body of the upper housing correspond to the lower case arc groove part be equipped with cold medium chamber, the cold medium chamber it is interior Downwardly projecting bottom is in arc surfaced, and the extreme lower position of interior bottom cambered surface goes out not higher than the arrival end central axis of condensation part and condensation part The height of air cavity road central axis;
The upside of the cold medium chamber is equipped with medium circulation entrance, and side wall is exported equipped with medium circulation;The medium circulation enters Mouth and medium circulation outlet are connected to the outlet and inlet tube in cold medium source.
CN201710787863.1A 2017-09-04 2017-09-04 Restore the device of practice for lung functions CN107551483B (en)

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CN107551483B true CN107551483B (en) 2019-05-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809706A (en) * 1988-01-13 1989-03-07 Watson Robert L Incentive inhalation spirometer apparatus
CN2297204Y (en) * 1996-05-24 1998-11-18 秦朝辉 Breathing recovery exercising apparatus
CN101454041A (en) * 2005-09-20 2009-06-10 呼吸科技公司 Systems, methods and apparatus for respiratory support of a patient
CN103608070A (en) * 2011-01-25 2014-02-26 艾派利斯控股有限责任公司 Apparatus and methods for assisting breathing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809706A (en) * 1988-01-13 1989-03-07 Watson Robert L Incentive inhalation spirometer apparatus
CN2297204Y (en) * 1996-05-24 1998-11-18 秦朝辉 Breathing recovery exercising apparatus
CN101454041A (en) * 2005-09-20 2009-06-10 呼吸科技公司 Systems, methods and apparatus for respiratory support of a patient
CN103608070A (en) * 2011-01-25 2014-02-26 艾派利斯控股有限责任公司 Apparatus and methods for assisting breathing

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