CN101856534B - Three-way pressure balance valve and medical respirator - Google Patents
Three-way pressure balance valve and medical respirator Download PDFInfo
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- CN101856534B CN101856534B CN 201010105871 CN201010105871A CN101856534B CN 101856534 B CN101856534 B CN 101856534B CN 201010105871 CN201010105871 CN 201010105871 CN 201010105871 A CN201010105871 A CN 201010105871A CN 101856534 B CN101856534 B CN 101856534B
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Abstract
The invention discloses a three-way pressure balance valve and a medical respirator. The three-way pressure balance valve comprises a three-way integrated pipe, wherein, the three-way integrated pipe comprises an air source port, a release port and a breathing port; the air source port is communicated directly with the breathing port; a thoracic diaphragm is arranged on the inner end of the air source port; the air source port is communicated with the release port through the space above the thoracic diaphragm; and the thoracic diaphragm is connected with an actuator which is used for actuating up-and-down movement of the thoracic diaphragm so as to adjust the gap size between the air source port and the release port. The medical respirator is connected with the three-way pressure balance valve to adjust the gap size between the air source port and the release port by up-and-down movement of the thoracic diaphragm and control an inspiration pressure and an expiration pressure respectively to maintain proper pressure at inspiration and expiration stages. The three-way pressure balance valve can realize two horizontal pressures to reach the optimal pressure. The medical respirator has the advantages of simple structure, convenient use and accurate control.
Description
Technical field
The present invention relates to a kind of medical respiration apparatus, relate in particular to a kind of three-way pressure balance valve and medical breathing machine.
Background technology
Noninvasive positive pressure ventilation (NPPV) is believed to be helpful in treatment chronic obstructive pulmonary disease (COPD) patient always.The noninvasive positive pressure ventilation technology is to use the positive airway pressure that does not have the implantable artificial air flue.Its basic concept is to ventilate through nasal mask with two pressure (air-breathing and expiration).Positive airway pressure is air-breathing and owing to will offer help to patient when pulmonary recoil and passive expiration.
Respirator of the prior art uses two kinds of technology:
A kind of is to use Fan Regulation pressure when air-breathing and expiration; Another kind is to use proportioning valve, opens by by-pass valve control and regulates pressure (regulating flow-control pressure).
There is following shortcoming at least in above-mentioned prior art:
For the blower fan viewpoint, good pressure-responsive ability and reliability depend on the power management of motor bearings technology, blower fan and the friction stability in the system; Blower fan control and control ratio valve that second viewpoint relates to realize that the target of pressure, these two viewpoints have the cough restriction of decompression or any EVAC of patient.
Complex structure, use inconvenient, control accuracy is low.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can control air-breathing respectively and breath pressure, and simple in structure, easy to use, the accurate three-way pressure balance valve of control and medical breathing machine.
The objective of the invention is to be achieved through the following technical solutions:
Three-way pressure balance valve of the present invention, comprise the integrated pipeline of threeway, the integrated pipeline of threeway comprises source of the gas mouth, liberation port, pneumostome, directly communicates between source of the gas mouth and the pneumostome, the inner at the source of the gas mouth is provided with diaphragm, communicates by transeptate superjacent air space between source of the gas mouth and the liberation port;
Described diaphragm is connected with driver, is used for driving the upper and lower action of diaphragm.
Medical breathing machine of the present invention, this medical breathing machine is connected with above-mentioned three-way pressure balance valve, and the gas outlet of this medical breathing machine is connected with described three-way pressure balance valve source of the gas mouth.
As seen from the above technical solution provided by the invention, three-way pressure balance valve of the present invention and medical breathing machine, because three-way pressure balance valve comprises the integrated pipeline of threeway, the integrated pipeline of threeway comprises source of the gas mouth, liberation port, pneumostome, directly communicate between source of the gas mouth and the pneumostome, the inner at the source of the gas mouth is provided with diaphragm, communicates by transeptate superjacent air space between source of the gas mouth and the liberation port; Diaphragm is connected with driver, is used for driving the upper and lower action of diaphragm, to regulate the gap length between source of the gas mouth and the liberation port.After medical breathing machine is connected with above-mentioned three-way pressure balance valve, can pass through the upper and lower action of diaphragm, regulate the gap length between source of the gas mouth and the liberation port, control pressure air-breathing and that exhale respectively, keep suitable pressure in air-breathing and expiration phase, use three-way pressure balance valve to realize two horizontal pressure forces, reaching best pressure, simple in structure, easy to use, control accurately.
Description of drawings
Fig. 1 is the tangent plane structural representation of three-way pressure balance valve of the present invention;
Fig. 2 is the disassembled form sketch map of three-way pressure balance valve of the present invention;
Fig. 3 is the perspective view of three-way pressure balance valve of the present invention;
Fig. 4 is the disassembled form sketch map of the specific embodiment one of the driver of three-way pressure balance valve of the present invention;
Fig. 5 is the disassembled form sketch map of the specific embodiment two of the driver of three-way pressure balance valve of the present invention;
Fig. 6 is the structural representation of medical breathing machine of the present invention.
The specific embodiment
Three-way pressure balance valve of the present invention, its preferable specific embodiment is:
Comprise the integrated pipeline of threeway, the integrated pipeline of threeway comprises source of the gas mouth, liberation port, pneumostome, directly communicates between source of the gas mouth and the pneumostome, is provided with diaphragm in the inner of source of the gas mouth, communicates by transeptate superjacent air space between source of the gas mouth and the liberation port;
Described diaphragm is connected with driver, is used for driving the upper and lower action of diaphragm, to regulate the gap length between source of the gas mouth and the liberation port.
Described driver is solenoid, and the shell of described solenoid is connected with the integrated pipeline of described threeway by Connection Block, and the moving core of described solenoid is connected with described diaphragm by power transmission shaft.
Described retainer has the gas pulsation release aperture, and described transeptate lower cavity is by described gas pulsation release aperture and exterior.
Described solenoid can arrange a slice or two damping spring sheets in a side, is used for supporting moving core and power transmission shaft.
Described solenoid also can arrange the damping spring sheet in both sides respectively, is used for supporting moving core and power transmission shaft.
Medical breathing machine of the present invention, its preferable specific embodiment be, this medical breathing machine is connected with above-mentioned three-way pressure balance valve, and the gas outlet of this medical breathing machine is connected with described three-way pressure balance valve source of the gas mouth.
The liberation port of three-way pressure balance valve can be connected with deafener.The pneumostome of three-way pressure balance valve can be connected with pneumatic sensor.
Also by reference to the accompanying drawings structure of the present invention and operating principle are described in detail below by specific embodiment:
The specific embodiment of three-way pressure balance valve, as Fig. 1, Fig. 2, shown in Figure 3:
Comprise the integrated pipeline 1 of threeway, be provided with diaphragm 2 between the integrated pipeline 1 of threeway and the retainer 3, diaphragm 2 is connected with driver 4;
Gas pulsation release aperture 31 can be offered in the below of retainer 3, is used for discharging the gas pulsation that is caused by diaphragm 2 on the one hand, is used on the other hand air damping is provided, to prevent the response because of vibratory impulse;
The integrated pipeline 1 of threeway comprises source of the gas mouth A, liberation port B, pneumostome C, directly communicates between source of the gas mouth A and the pneumostome C; Diaphragm 2 gets lodged in the inner of source of the gas mouth A, communicates by the gap between the inner of diaphragm 2 and source of the gas mouth A between source of the gas mouth A and the liberation port B.
The principle of its action is:
Gas enters air flue from the source of the gas mouth A of three-way pressure balance valve:
When exhaling, should control pneumostome C pressure and diminish:
When air-breathing, should control pneumostome C pressure and become big:
In the moment of dry cough, a large amount of gases enter air flue through pneumostome C, make intra-airway pressure moment change big:
Because it is constant that excitation power offers the power of diaphragm 2, and airway pressure acts on the power of diaphragm 2 and becomes big, causes diaphragm 2 both sides force unbalances, make diaphragm 2 mobile downwards, big through the long-pending change of the flow area of liberation port B, intra-airway pressure diminishes, the pressure balance up to diaphragm 2 both sides; When dry cough stopped, the air-flow that enters air flue through pneumostome C diminished, and intra-airway pressure diminishes, and excitation power offers the power of diaphragm 2 greater than airway pressure, and diaphragm moves up and offers the dynamic balance of diaphragm 2 up to excitation power and airway pressure.This process is shorter, reaches abrupt release because the pressure that dry cough causes increases.
Among the present invention, driver 4 can adopt the solenoid of following two specific embodiments, also can adopt the solenoid of other structure:
Specific embodiment one:
Pressure valve with single spring drive cantilever arranges a slice or two damping spring sheets 6 in a side of coil 5, supports moving core and power transmission shaft 41.
Specific embodiment two:
Have spring-supported pressure valve at the driver two ends, in the both sides of coil 5 a slice damping spring sheet 6 is set respectively, support moving core and power transmission shaft 41.
The effect of damping spring sheet 6 is be used for providing quick response and eliminate system friction, and the moving core of maintenance that can be suitable to be assemblied in the coil magnetic field center.
Three-way pressure balance valve of the present invention can produce lasting power, discharges and returns to original pressure target in inspiratory phase permission system; When exhaling, can unload breath pressure, can also control the expiration waveform, to reduce the patient respiratory merit; And can utilize and force balance, when being subjected to the interference source of coughing as patient, with automatic recovery system pressure.
Be used for medical breathing machine, keep suitable pressure by control open loop or closed loop in air-breathing and expiration phase, use three-way pressure balance valve to realize two horizontal pressure forces, to reach best pressure.Can control the air-breathing of two horizontal breathing apparatus and expiration.At liberation port B baffle plate is set and eliminates owing to system airflow discharges the whister-type noise that produces, the turbulent flow sound that patient airway is produced carries out noise reduction.
In the three-way pressure balance valve of the present invention, bearing is not used in the assembling of driver, thereby has eliminated system friction, allows the quick response of valve and does not have friction.Driver is a force equalizer, comes balance sysmte pressure by electric current, is used for the pressure that control is air-breathing and exhale.It is a linear functional relation between input current and the pressure.Adopt traditional controller (as ratio and integration (PI) controller) or linear open loop control, this system has the ability to keep-up pressure.Simple in structure, production cost is low.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (6)
1. three-way pressure balance valve, it is characterized in that, comprise the integrated pipeline of threeway, the integrated pipeline of threeway comprises source of the gas mouth, liberation port, pneumostome, directly communicate between source of the gas mouth and the pneumostome, the inner at the source of the gas mouth is provided with diaphragm, communicates by transeptate superjacent air space between source of the gas mouth and the liberation port, and the pneumostome of three-way pressure balance valve is connected with pneumatic sensor;
Described diaphragm is connected with driver, is used for driving the upper and lower action of diaphragm;
Described driver is solenoid, and the shell of described solenoid is connected with the integrated pipeline of described threeway by retainer, and the moving core of described solenoid is connected with described diaphragm by power transmission shaft.
2. three-way pressure balance valve according to claim 1 is characterized in that, described retainer has the gas pulsation release aperture, and described transeptate lower cavity is by described gas pulsation release aperture and exterior.
3. three-way pressure balance valve according to claim 1 is characterized in that, described solenoid arranges a slice or two damping spring sheets in a side, is used for supporting moving core and power transmission shaft.
4. three-way pressure balance valve according to claim 1 is characterized in that, described solenoid arranges the damping spring sheet respectively in both sides, is used for supporting moving core and power transmission shaft.
5. a medical breathing machine that comprises each described three-way pressure balance valve of claim 1 to 4 is characterized in that, the gas outlet of described medical breathing machine is connected with the source of the gas mouth of described three-way pressure balance valve.
6. the medical breathing machine that comprises three-way pressure balance valve according to claim 5 is characterized in that, the liberation port of described three-way pressure balance valve is connected with deafener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010105871 CN101856534B (en) | 2010-02-03 | 2010-02-03 | Three-way pressure balance valve and medical respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010105871 CN101856534B (en) | 2010-02-03 | 2010-02-03 | Three-way pressure balance valve and medical respirator |
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| CN101856534A CN101856534A (en) | 2010-10-13 |
| CN101856534B true CN101856534B (en) | 2013-08-14 |
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| CN 201010105871 Active CN101856534B (en) | 2010-02-03 | 2010-02-03 | Three-way pressure balance valve and medical respirator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8573248B2 (en) * | 2010-12-08 | 2013-11-05 | General Electric Company | Pneumatic vibration dampening device |
| EP2654871B1 (en) * | 2010-12-21 | 2017-05-17 | Koninklijke Philips N.V. | Ventilator with active valve |
| DE102016013140A1 (en) * | 2016-11-07 | 2018-05-09 | Drägerwerk AG & Co. KGaA | A respiratory apparatus and method of operation for a ventilator with a determination of coughing attacks |
| DE102017208421A1 (en) * | 2017-05-18 | 2018-11-22 | Hamilton Medical Ag | Exhalation valve for a ventilator with noise reducing flow resistance |
| CN110403813B (en) * | 2018-10-12 | 2024-05-24 | 北京雅果科技有限公司 | Shock pulse generator and auxiliary sputum excretion device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102038A (en) * | 1998-05-15 | 2000-08-15 | Pulmonetic Systems, Inc. | Exhalation valve for mechanical ventilator |
| CN1369314A (en) * | 2001-02-01 | 2002-09-18 | 菲舍尔和佩克尔保健有限公司 | Breath auxiliary equipment |
| CN101310792A (en) * | 2007-06-28 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Device and method for controlling expiratory valve |
| CN101394888A (en) * | 2005-12-29 | 2009-03-25 | 奥拉夫·赫斯特维特 | Respiratory flap valve |
-
2010
- 2010-02-03 CN CN 201010105871 patent/CN101856534B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102038A (en) * | 1998-05-15 | 2000-08-15 | Pulmonetic Systems, Inc. | Exhalation valve for mechanical ventilator |
| CN1369314A (en) * | 2001-02-01 | 2002-09-18 | 菲舍尔和佩克尔保健有限公司 | Breath auxiliary equipment |
| CN101394888A (en) * | 2005-12-29 | 2009-03-25 | 奥拉夫·赫斯特维特 | Respiratory flap valve |
| CN101310792A (en) * | 2007-06-28 | 2008-11-26 | 北京谊安医疗系统股份有限公司 | Device and method for controlling expiratory valve |
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