CN102274565A - Pressure compensating device connected to breathing system and pressure compensating method - Google Patents
Pressure compensating device connected to breathing system and pressure compensating method Download PDFInfo
- Publication number
- CN102274565A CN102274565A CN2011101260106A CN201110126010A CN102274565A CN 102274565 A CN102274565 A CN 102274565A CN 2011101260106 A CN2011101260106 A CN 2011101260106A CN 201110126010 A CN201110126010 A CN 201110126010A CN 102274565 A CN102274565 A CN 102274565A
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- China
- Prior art keywords
- pressure
- compensation equipment
- pressure compensation
- respiratory system
- equipment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
Abstract
The invention is suitably applied in medical instrument field and provides a pressure compensating device connected to a breathing system and a pressure compensating method. The pressure compensating device which is a bidirectional broadband flow generating device is applied for keeping a desired pressure distribution of the breathing system. In the embodiments of the invention, the pressure compensating device connected to the breathing system is achieved by equipping the bidirectional broadband flow generating device connected to the breathing system for keeping the desired pressure distribution of the breathing system. The pressure compensating device can generate a desired pressure distribution at a patient's part, for example, removing pressure oscillation generated by the pressure change in the breathing system pipelines so as to prevent patients from being feeling uncomfortable.
Description
Technical field
The invention belongs to field of medical, relate to a kind of being connected in the respiratory system with to transient pressure with flow process compensates or control method and equipment.
Background technology
Fig. 1 shows the structure of a kind of the most frequently used respiratory system that disposes in the medical breathing machine.Respirator 100 at first alternately transports a certain amount of gas to patient pulmonary 17, then discharges the gas of institute's upwards of movement.
Gas is by valve 12 that is connected to flexible pipe 14 and 15 and 13 controls, and gas converges at Y type spare 16 behind flexible pipe 14 and 15, then enters in the patient body through flexible pipe or face shield again.Because it is relatively huge to have the valve of control system and electric power system, so they often are installed in a room, the formation respirator.
Respirator often is positioned over the place apart from several meters far away of patients.Therefore, the flexible pipe of respirator is general long more than one meter.This is not a unsurmountable problem, article one, flexible pipe is full of and sucks gas and another flexible pipe is full of breath, the live gas of supplying with patient only is used for replacing the gas of current flexible pipe and can cause any mistake on the capacity, can't cause capacity to change because this pressure that causes changes.
When changing, flow can arrive the pressure change that causes in the flexible pipe.The compressibility that concentrates on the weight bound gas of the gas in the flexible pipe can cause the harmonic oscillation of hose system.These vibrations may cause patient's sense of discomfort.
Above-mentioned pressure change also can make pressure control breathing pattern go wrong.Realize by so-called technology of closed loop because pressure control is normal.For closed loop control is carried out really, exactly, this loop will be lacked.This can be provided with the pressure transducer realization by the place near valve in the loop, and this valve is used to control controlled pressed gas.Unfortunately, the pressure distribution at Y type spare place is different with the pressure distribution at pressure transducer place.On the contrary, if at Y type spare place pressure transducer is set, it is bigger that pressure regulation circuit will become, and can cause damage to pressure control.Yet causing the unfavorable Another reason of Y type spare place pressure distribution may be that source of the gas is controlled too slowly, and common reason is exactly that the source of the gas place has changeable flow turbine or inlet valve too slow.
Summary of the invention
Purpose of the present invention is intended to solve the problem that prior art exists, and a kind of pressure compensation equipment is provided, and can avoid, eliminates or reduce the change near the above-mentioned pressure at patient place.
The problems referred to above can adopt an active component to solve, and produce air-flow to compensate non-desired pressure by this active component.Can not obtaining of the flow distribution that this equipment produces from remote inlet valve.For example, this method can adopt high frequency generator (High Frequency Oscillator, HFO) or HFO (High Frequency Ventilation HFV) realizes.
The embodiment of the invention is achieved in that a kind of pressure compensation equipment that is connected to respiratory system, and described pressure compensation equipment is that flow two-way, the broadband produces equipment, and the desired pressure that is used to keep respiratory system distributes.
Flow generation equipment is a speaker, also is desirable but adopt particular design for the adaptation application.
For ventional loudspeakers, a favourable selection is to adopt the piezoelectric actuator that is connected to mechanical amplifier to replace coil, and this selection can significantly improve the bandwidth of equipment.
For control appliance flow suitably, in local detected pressures near patient.Pressure signal is included in the pressure control loop of another pressure-control valve for the expectation pressure distribution, the output signal control appliance driver of this pressure control loop.
In addition, this equipment can also be adapted to as the other standard separate unit of a patient.This helps actively offsetting the vibration of setting by preset standard.
As a first aspect of the present invention, pressure compensation equipment is used for the connection and the pressure control of respiratory system.This pressure compensation equipment comprises at least one driving element, at least one has container and at least one pressure transducer of exit passageway.According to the detected pressure of pressure transducer, under the motion of driver element, compress or unclamp container.The outlet of container passage connects to be breathed, and the non-desired pressure in the pressure compensation equipment replacement respiratory system changes.
Because superior design of the present invention, pressure compensation equipment can be connected to flow and produce equipment, for example respiratory system serves as active member two-way, the broadband.Desired pressure distributes and can be produced by the control system with pressure control loop, and this pressure control loop is connected to another pressure control loop conversely, adopts a suitable manner can record the pressure of locating near the user.
Preferably, container can be designed as one and has the superjacent bellows of dish, and container promotes by driver.
The separate unit that the present invention can be used as patient end uses, and also can be used for initiatively offsetting the vibration of preassigned.
Preferably, the driving element in the pressure compensation equipment can be pressure driver.
Compare with coil etc., the design has improved the bandwidth of concrete equipment significantly, and this design can be used for other embodiment equally.An advantage of working pressure driver can be connected in series to the mechanical movement amplifier exactly, to amplify the amplitude that pressure driver pushes away, roping is moving.
In addition, the present invention also provides a kind of pressure compensating method, comprises the steps:
A pressure compensation equipment that is connected to respiratory system is provided;
Motion by the driver at least one pressure transducer controlled pressure control loop;
The desired pressure of the gases flow respiratory system of the pneumatic transient pressure processor of turnover that produces by actuation movement distributes.。
In embodiments of the present invention, the flow two-way, the broadband that is connected to respiratory system by increase produces equipment, the desired pressure that is used to keep respiratory system distributes, realized a kind of pressure compensation equipment that is connected to respiratory system, can produce desired pressure at patient end distributes, the pressure of for example removing by the respiratory system pipeline changes the pressure oscillation that produces, and does not feel well to avoid patient.
Description of drawings
Fig. 1 is the structural representation of the respiratory system commonly used that provides of prior art;
The structural scheme of mechanism of the respiratory system of Fig. 2 is the increase that provides of embodiment of the invention pressure compensation equipment;
Fig. 3 is the structural representation of the pressure compensation equipment that provides of the embodiment of the invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The problems referred to above that prior art exists can adopt an active component to solve, and produce air-flow to compensate non-desired pressure by this active component.Can not obtaining of the flow distribution that this equipment produces from remote inlet valve.For example, this method can adopt high frequency generator (High Frequency Oscillator, HFO) or HFO (High Frequency Ventilation HFV) realizes.
Embodiments of the invention are to connect a pressure compensation equipment at the gas passage place near patient, and this pressure compensation equipment can produce equipment for flow.Like this, flow generation equipment is required to be two-way, broadband, and the desired pressure that is used to keep respiratory system distributes.But, may have zero-mean, because inlet valve can produce Non-zero Mean.In principle, flow generation equipment can be a speaker or coil.But it also is desirable using other particular design that adopt for adaptation.Further, pressure compensation equipment can also be configured to the pressure according to preset standard compensation respiratory system.
In addition, also having a kind of favourable selection is to adopt the piezoelectric actuator that is connected to mechanical amplifier to replace coil, adopts this mode can significantly improve the bandwidth of equipment.
Fig. 2 has shown increase that the embodiment of the invention the provides structural representation of respiratory system of pressure compensation equipment 20.Pressure compensation equipment 20 can be connected to respiratory system by Y type spare etc. near patient's place.This pressure compensation equipment 20 is used for the connection of respiratory system and pressure control, comprises at least one driving element, at least one has container and at least one pressure transducer of exit passageway.Driver element is according to the detected pressure of pressure transducer, compresses or unclamps container; Outlet of container connects respiratory system by passage.Non-desired pressure in the pressure compensation equipment replacement respiratory system changes, and the desired pressure that is used to keep respiratory system distributes.
For control appliance flow suitably, in the local detected pressures near patient, promptly pressure transducer is arranged at the place near patient.Pressure signal is included in the pressure control loop of another pressure-control valve for the expectation pressure distribution, the output signal control appliance driver of this pressure control loop.
Preferably, pressure compensation equipment can be connected to flow and produce equipment, and for example respiratory system serves as active member two-way, the broadband.Desired pressure distributes and can be produced by the control system with pressure control loop, and this pressure control loop is connected to another pressure control loop conversely, adopts a suitable manner can record the pressure of locating near the user.
Preferably, the driving element in the pressure compensation equipment can be pressure driver.This pressure driver can be piezoelectric actuator, and pressure compensation equipment also comprises a mechanical amplifier that is connected in series to this piezoelectric actuator.
Preferably, container can be designed as and comprises bellows, a dish that is pressed on these bellows, and an outlet.Container compresses or unclamps in the promotion of driver.
Particularly, Fig. 3 shows the structural representation of the pressure compensation equipment 20 that the embodiment of the invention provides.This pressure compensation equipment 20 comprises a piezoelectric actuator 30, mechanical amplifier 31, removable dish 32, a bellows 33 and an outlet 34.Four-headed arrow 36 among Fig. 3 shows the direction of bidirectional control flow.
As shown in Figure 3, in embodiments of the present invention, the mechanical amplifier 31 that moves through that piezoelectric actuator 30 produces amplifies, and then 32 motions of promotion dish.Bellows 33 then are compressed, and having produced outlet moment of 34 flow 36 of flowing through.Driver 30 and removable dish 32 can be the spring (not shown), therefore can produce two-way mobile and mobile.Pressure transducer 35 feeds back to pressure control loop for equipment provides.
Compare with coil etc., the design has improved the bandwidth of concrete equipment significantly, and this design can be used for other embodiment equally.In addition, an advantage of working pressure driver can be connected in series to mechanical movement amplifier 31 exactly, to amplify the amplitude that pressure driver pushes away, roping is moving.
In addition, this equipment can also be adapted to as the other standard separate unit of a patient.This helps actively offsetting the vibration of setting by preset standard.
In addition, the embodiment of the invention also provides a kind of and is used for a pair of transient pressure of respiratory system and flow compensates or the controlled pressure compensation method.This method comprises the steps:
A pressure compensation equipment that is connected to respiratory system is provided;
Motion by the driver at least one pressure transducer controlled pressure control loop;
The air-flow of the pneumatic transient pressure processor of turnover that produces by driver motion is to keep the desired pressure distribution of respiratory system.
In embodiments of the present invention, the specific implementation of pressure compensation equipment repeats no more with above-mentioned pressure compensation equipment.
The advantage of the method that the embodiment of the invention provides is with above-mentioned equipment, and just, this method can produce desired pressure at patient end and distribute, and the pressure of for example removing by the respiratory system pipeline changes the pressure oscillation that produces, and this pressure oscillation also can cause harmonic oscillation.These may make patient not feel well, and also may cause pressure control breathing method to go wrong.
In embodiments of the present invention, the flow two-way, the broadband that is connected to respiratory system by increase produces equipment, the desired pressure that is used to keep respiratory system distributes, realized a kind of pressure compensation equipment that is connected to respiratory system, can produce desired pressure at patient end distributes, the pressure of for example removing by the respiratory system pipeline changes the pressure oscillation that produces, and does not feel well to avoid patient.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a pressure compensation equipment that is connected to respiratory system is characterized in that, described pressure compensation equipment is that flow two-way, the broadband produces equipment, and the desired pressure that is used to keep respiratory system distributes.
2. pressure compensation equipment as claimed in claim 1 is characterized in that, described pressure compensation equipment is speaker or coil.
3. pressure compensation equipment as claimed in claim 1 is characterized in that, described pressure compensation equipment is configured to the pressure according to preset standard compensation respiratory system.
4. pressure compensation equipment as claimed in claim 1 is characterized in that, described pressure compensation equipment comprises at least one driving element, at least one has container and at least one pressure transducer of exit passageway; Described driver element is according to the detected pressure of pressure transducer, compresses or unclamps described container; Described outlet of container connects respiratory system by passage.
5. pressure compensation equipment as claimed in claim 4 is characterized in that, described pressure transducer is arranged at the place near patient.
6. as claim 4 or 5 described pressure compensation equipment, it is characterized in that described pressure compensation equipment is connected to respiratory system by Y type spare.
7. pressure compensation equipment as claimed in claim 4 is characterized in that, described driving element is a pressure driver.
8. pressure compensation equipment as claimed in claim 7 is characterized in that, described pressure driver is a piezoelectric actuator, and described pressure compensation equipment also comprises a mechanical amplifier that is connected in series to described piezoelectric actuator.
9. pressure compensation equipment as claimed in claim 4 is characterized in that, described container comprises:
Bellows;
Be pressed in the dish on the described bellows; And
An outlet.
10. a pressure compensating method is characterized in that, described method comprises the steps:
A pressure compensation equipment that is connected to respiratory system is provided;
Motion by the driver at least one pressure transducer controlled pressure control loop;
The desired pressure of the gases flow respiratory system of the pneumatic transient pressure processor of turnover that produces by actuation movement distributes.
11. method as claimed in claim 10 is characterized in that, described pressure compensation equipment is each described pressure compensation equipment in the claim 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1050489-2 | 2010-05-17 | ||
| SE1050489A SE535827C2 (en) | 2010-05-17 | 2010-05-17 | Pneumatic transient controller for connection and control of pressure in a respiratory system, as well as a method for controlling the respiratory system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102274565A true CN102274565A (en) | 2011-12-14 |
| CN102274565B CN102274565B (en) | 2015-11-25 |
Family
ID=45100496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110126010.6A Expired - Fee Related CN102274565B (en) | 2010-05-17 | 2011-05-16 | A kind of pressure compensation device and pressure compensating method being connected to respiratory system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102274565B (en) |
| SE (1) | SE535827C2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684046A (en) * | 2013-12-13 | 2014-03-26 | 南京航空航天大学 | Human breath energy collecting device |
| CN108619597A (en) * | 2017-03-17 | 2018-10-09 | 深圳市大雅医疗技术有限公司 | A kind of pressure compensating method of lung ventilator runner |
| CN112915336A (en) * | 2021-03-25 | 2021-06-08 | 湖南万脉医疗科技有限公司 | Compensation type breathing machine oxygen supply method and breathing machine |
| WO2021179215A1 (en) * | 2020-03-11 | 2021-09-16 | 深圳迈瑞生物医疗电子股份有限公司 | Respiratory ventilation system and method |
| WO2022199128A1 (en) * | 2021-03-25 | 2022-09-29 | 湖南万脉医疗科技有限公司 | No-lag oxygen supply ventilator system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076267A (en) * | 1987-11-03 | 1991-12-31 | Dragerwerk Aktiengesellschaft | Closed circuit breathing device with pressure sensing means |
| US6658118B1 (en) * | 1998-06-05 | 2003-12-02 | Dana Corporation | Suppression of fluid-borne noise |
| US20050188991A1 (en) * | 2003-06-04 | 2005-09-01 | Jianuo Sun | Positive airway pressure therapy management module |
| US20070267940A1 (en) * | 2006-05-15 | 2007-11-22 | Par Technologies, Llc. | Compressor and compression using motion amplification |
| US20090120439A1 (en) * | 2007-11-08 | 2009-05-14 | Fred Goebel | Method of triggering a ventilator |
-
2010
- 2010-05-17 SE SE1050489A patent/SE535827C2/en unknown
-
2011
- 2011-05-16 CN CN201110126010.6A patent/CN102274565B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076267A (en) * | 1987-11-03 | 1991-12-31 | Dragerwerk Aktiengesellschaft | Closed circuit breathing device with pressure sensing means |
| US6658118B1 (en) * | 1998-06-05 | 2003-12-02 | Dana Corporation | Suppression of fluid-borne noise |
| US20050188991A1 (en) * | 2003-06-04 | 2005-09-01 | Jianuo Sun | Positive airway pressure therapy management module |
| US20070267940A1 (en) * | 2006-05-15 | 2007-11-22 | Par Technologies, Llc. | Compressor and compression using motion amplification |
| US20090120439A1 (en) * | 2007-11-08 | 2009-05-14 | Fred Goebel | Method of triggering a ventilator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684046A (en) * | 2013-12-13 | 2014-03-26 | 南京航空航天大学 | Human breath energy collecting device |
| CN103684046B (en) * | 2013-12-13 | 2016-03-02 | 南京航空航天大学 | A kind of human body respiration energy collecting device |
| CN108619597A (en) * | 2017-03-17 | 2018-10-09 | 深圳市大雅医疗技术有限公司 | A kind of pressure compensating method of lung ventilator runner |
| WO2021179215A1 (en) * | 2020-03-11 | 2021-09-16 | 深圳迈瑞生物医疗电子股份有限公司 | Respiratory ventilation system and method |
| CN112915336A (en) * | 2021-03-25 | 2021-06-08 | 湖南万脉医疗科技有限公司 | Compensation type breathing machine oxygen supply method and breathing machine |
| CN112915336B (en) * | 2021-03-25 | 2021-11-02 | 湖南万脉医疗科技有限公司 | Compensation type breathing machine oxygen supply method and breathing machine |
| WO2022199128A1 (en) * | 2021-03-25 | 2022-09-29 | 湖南万脉医疗科技有限公司 | No-lag oxygen supply ventilator system |
Also Published As
| Publication number | Publication date |
|---|---|
| SE1050489A1 (en) | 2011-11-18 |
| SE535827C2 (en) | 2013-01-02 |
| CN102274565B (en) | 2015-11-25 |
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Granted publication date: 20151125 Termination date: 20160516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |