CN105749395A - Trigger type high-frequency jet ventilator for cardio-pulmonary resuscitation - Google Patents
Trigger type high-frequency jet ventilator for cardio-pulmonary resuscitation Download PDFInfo
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- CN105749395A CN105749395A CN201610087882.9A CN201610087882A CN105749395A CN 105749395 A CN105749395 A CN 105749395A CN 201610087882 A CN201610087882 A CN 201610087882A CN 105749395 A CN105749395 A CN 105749395A
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H31/00—Artificial respiration or heart stimulation, e.g. heart massage
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Abstract
The invention discloses a trigger type high-frequency jet ventilator for cardio-pulmonary resuscitation. The trigger type high-frequency jet ventilator comprises a control unit and a jet ventilation device. The control unit is connected with a sensing unit or an artificial cardio-pulmonary resuscitation machine used for sensing thorax fluctuations or breathing airflow. The control unit sends a jet starting instruction to the jet ventilation device from a thorax pressing end point, and sends a jet stopping instruction from a thorax springback end point. Ventilation is achieved for a patient on the condition of continuous external chest compression, the compression intermittent time is greatly shortened, ventilation can be accurately carried out in the thorax springback period of the patient, coronary artery, heart and brain instillation can be effectively improved, and therefore the patient can obtain better prognosis.
Description
Technical field
The present invention relates to medical breathing machine technical field, particularly relate to a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator.
Background technology
Sudden cardiac arrest is once occur, as can not get at once rescue recovery in time, the irreversible infringement of patient's brain and other people body organs in adult can be caused after 4～6min, therefore the cardio-pulmonary resuscitation (cardiopulmonaryresuscitation, CPR) after sudden cardiac arrest must carry out at the scene immediately.
Guidance and specification cardio-pulmonary resuscitation in the world are had important positive effect by " international cardiopulmonary resuscitation guide " that every 5 years can worked out by american heart association (AHA) and some other western developed country resuscitology update once.American heart association (AHA) in 2010 and international recovery alliance (ILCOR) issue up-to-date cardio-pulmonary resuscitation and emergency cardiovascular care guide, the existence four morning chain of 2005 change five chain links into and express the importance implementing the support of urgent life: (1) identifies asystole immediately and starts contingency response system；(2) implement cardio-pulmonary resuscitation CPR as early as possible, emphasize external chest compression；(3) Rapid defibrillation；(4) effective Advanced Life support；(5) treat after comprehensive sudden cardiac arrest.
Described external chest compression is the central authorities that the palm root of a hands is placed on patient chest, on breastbone lower half, the palm root of another hands is placed in first on hand.During pressing, duplex must stretch, vertically downward firmly pressing, and adult compressions's frequency is at least 100 times/min, and depression depths is at least 125px, thorax should be allowed to reply completely after pressing every time.Compressing time and relaxation time respectively account for about 50%, slap root and can not leave thoracic wall when loosening, in order to avoid press points displacement.Interrupting external chest compression in order to reduce as far as possible because of ventilation, for not setting up the adult of artificial airway, the pressing-Ventilation Ratio of international cardiopulmonary resuscitation guide recommendation in 2010 is 30: 2.For baby and child, the ratio of 15: 2 during double CPR, can be adopted.As double or many people sue and labour, every 2 minutes or 5 cycle CPR (each cycle includes 30 pressings and 2 artificial respirations) pressing person should be changed, and in 5 seconds, complete conversion, because studies have shown that, after pressing beginning 1～2 minute, the quality of operator's pressing begins to decline (show as frequency and amplitude and thoracic wall reset case is all undesirable).
AHA cardio-pulmonary resuscitation basie life support guides in 2015 are pointed out; after the cardiac arrest patient implementing cardio-pulmonary resuscitation has set up senior air flue, rescuer can not according still further to the pressing respiratory quotient cycle operation (namely no longer interrupting external chest compression during 2 ventilations) of 30: 2.On the contrary, can ventilate once (respiratory frequency 10 beats/min) every 6s, simultaneously continuously and uninterruptedly row external chest compression (ClassIIb, LOEC-LD).
In such a mode, external chest compression and mechanical ventilation carry out simultaneously.This pattern would be likely to occur problems with: when mechanical ventilation inspiratory phase is conflicted with pressing, airway pressure is too high, and gas cannot normally enter pulmonary；When expiratory phase and thorax resilience synchronised, expiration efficiency reduces.It is low that clinic can behave as blood oxygen saturation, CO2Accumulation, rebeating difficulty, success of cardiopulmonary resuscitation rate declines, poor prognosis etc..
Summary of the invention
It is an object of the invention to for the technological deficiency existed in prior art, and a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator replacing common respirator or human assistance ventilation is provided.
A kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator is the technical scheme is that, it is characterised in that include control unit and jet ventilation device by realizing the purpose of the present invention；Described jet ventilation device is connected to artificial airway by gas circuit；Described control unit is connected to the perception unit for the fluctuating of perception thorax or respiratory air flow or manual cardiopulmonary resuscitation's machine；Described control unit receives perceptual signal that described perception unit sends or after the pressing signal of manual cardiopulmonary resuscitation's machine, sends to jet ventilation device at the terminal (i.e. the initial point of thorax resilience) of thorax pressing and starts jet instruction；Terminal (i.e. the initial point of thorax pressing) in thorax resilience sends stopping jet instruction；Described jet ventilation device, according to the instruction received, starts jet ventilation to artificial airway or stops jet ventilation.
When above-mentioned cardio-pulmonary resuscitation trigger-type high frequency jet ventilator provided by the invention is to realize ventilating, thorax pressing is uninterrupted, and presses nonsynchronous state with thorax during air-breathing.
When medical personnel manually implement external chest compression, what described control unit connected is perception unit.
Preferably, described perception unit is for monitoring the flow transducer of air flue air-flow change in pressing process.When flow transducer perceives air-breathing or expiratory gas flow, send perceptual signal to control unit.The terminal (i.e. the initial point of thorax resilience) that control unit presses at thorax according to the perceptual signal received sends beginning jet instruction to jet ventilation device；Control unit sends stopping jet instruction at the terminal (i.e. the initial point of thorax pressing) of thorax resilience.Described jet ventilation device is according to, after receiving instruction, starting jet ventilation to artificial airway or stop jet ventilation.
Other technical scheme is, described perception unit is the alignment sensor for monitoring thorax fluctuations.The quantity of alignment sensor is 2, is individually positioned in patient chest and abdomen back of the body position, or 2 alignment sensors are placed on midaxillary line position, patient both sides；Change perception by the distance between alignment sensor and judge that patient's thorax is in pressed state or resilience state；In pressing process, it is resilience initial point when distance between two alignment sensors is minimum, for pressing initial point when maximum.Control unit is according to the perceptual signal received, terminal (i.e. the initial point of thorax resilience) in thorax pressing sends beginning jet instruction to jet ventilation device, and control unit sends stopping jet instruction at the terminal (i.e. the initial point of thorax pressing) of thorax resilience；Described jet ventilation device is according to, after receiving instruction, starting jet ventilation to artificial airway or stop jet ventilation.
Further, in order to make perceptual signal more accurate, described perception unit includes the flow transducer for monitoring air flue air-flow change in pressing process and for monitoring the alignment sensor of thorax fluctuations.By flow transducer and alignment sensor cooperating, it is possible to more accurately judge the pressing of thorax during cardio-pulmonary resuscitation all the time or the point all the time of thorax resilience.
When adopting manual cardiopulmonary resuscitation's machine according to when carrying out automatic external chest compression by die pressing type of setting, described control unit receives the pressing signal sent from described manual cardiopulmonary resuscitation's machine.
The ventilatory frequency of described high frequency jet ventilator is 10～200 times/min, and maximal voluntary ventilation is not less than 20L/min.
Compared with prior art, the invention has the beneficial effects as follows: for the patient implementing cardio-pulmonary resuscitation, and this patient is complete tracheal intubation or laryngeal mask, traditional respirator or human assistance ventilation can be replaced by thorax resilience trigger higher frequency jet ventilator provided by the invention, have the advantage that
(1) continual external chest compression omnidistance, complete can be carried out, guarantee that during thorax resilience (i.e. the terminal of thorax pressing to the terminal of thorax resilience) realizes effective ventilation simultaneously；
(2) during thorax resilience, (i.e. the terminal of thorax pressing to the terminal of thorax resilience) provides uninterrupted jet to artificial airway, effectively raises patient's oxygenate during cardio-pulmonary resuscitation, increases the success rate rescued, reduces the appearance of complication；
(3) at patient's cardio-pulmonary resuscitation thorax resilience phase jet ventilation, it is effectively promoted the complete resilience of thorax, now ventilates and pulmonary vascular extruding can be promoted lung blood backflow heart, increase heart blood back amount, promote the blood circulation under external chest compression.
Accompanying drawing explanation
Fig. 1 show the connection block diagram of a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Embodiment:
It is illustrated in figure 1 a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator, including control unit and jet ventilation device；Described jet ventilation device is connected to artificial airway by gas circuit；Described control unit is connected to the perception unit for the fluctuating of perception thorax or respiratory air flow or manual cardiopulmonary resuscitation's machine；Described control unit receives perceptual signal that described perception unit sends or after the pressing signal of manual cardiopulmonary resuscitation's machine, sends to jet ventilation device at the terminal (i.e. the initial point of thorax resilience) of thorax pressing and starts jet instruction；Terminal (i.e. the initial point of thorax pressing) in thorax resilience sends stopping jet instruction；Described jet ventilation device, according to the instruction received, starts jet ventilation to artificial airway or stops jet ventilation.
When above-mentioned cardio-pulmonary resuscitation trigger-type high frequency jet ventilator provided by the invention is to realize ventilating, thorax pressing is uninterrupted, and presses nonsynchronous state with thorax during air-breathing.
Preferably, described perception unit is for monitoring the flow transducer of air flue air-flow change in pressing process.When flow transducer perceives air-breathing or expiratory gas flow, send perceptual signal to control unit.The terminal (i.e. the initial point of thorax resilience) that control unit presses at thorax according to the perceptual signal received sends beginning jet instruction to jet ventilation device；Control unit sends stopping jet instruction at the terminal (i.e. the initial point of thorax pressing) of thorax resilience.Described jet ventilation device is according to, after receiving instruction, starting jet ventilation to artificial airway or stop jet ventilation.
The hot-wire airflow sensor of Drager company selected by described flow transducer, and basic structure includes the platinum hot line (platinum line) of perception air mass flow, the thermo-compensator (cold line) being modified according to intake air temperature, controls hot line electric current and produces the control circuit board of output signal and the housing of air flow sensor.The wire diameter of hot line is the platinum wire (RH) of 70 μm, is arranged in support ring, and its resistance varies with temperature, and is an arm of whiston bridge circuit.Installing a platinum thin film resistor in the plastic sheath of hot line support ring front end, its resistance changes with intake air temperature, is called thermo-compensator (RK), is another arm of whiston bridge circuit.The plastic sheath of hot line support ring rear end is bonding with a precision resistance (RA).This resistance can, with laser reconditioning, also be an arm of resistance bridge.This ohmically voltage drop is the output signal voltage of hot-wire airflow sensor.Resistance bridge also has the resistance RB of an arm to be arranged on control circuit board.
Preferably, described perception unit is the alignment sensor for monitoring thorax fluctuations, and 2 commercially available localizing electrode sheets selected by described alignment sensor.2 localizing electrode sheets are individually positioned in patient chest and abdomen back of the body position, or 2 localizing electrode sheets are placed on midaxillary line position, patient both sides；Change perception by the distance between described localizing electrode sheet and judge that patient's thorax is in pressed state or resilience state；In pressing process, it is resilience initial point when distance between two localizing electrode sheets is minimum, for pressing initial point when maximum.Control unit is according to the perceptual signal received, terminal (i.e. the initial point of thorax resilience) in thorax pressing sends beginning jet instruction to jet ventilation device, and control unit sends stopping jet instruction at the terminal (i.e. the initial point of thorax pressing) of thorax resilience；Described jet ventilation device is according to, after receiving instruction, starting jet ventilation to artificial airway or stop jet ventilation.
Further, in order to make perceptual signal more accurate, described perception unit includes the flow transducer for monitoring air flue air-flow change in pressing process and for monitoring the alignment sensor of thorax fluctuations.By flow transducer and alignment sensor cooperating, it is possible to more accurately judge the pressing of thorax during cardio-pulmonary resuscitation all the time or the point all the time of thorax resilience.
Preferably, when adopting manual cardiopulmonary resuscitation's machine according to when carrying out automatic external chest compression by die pressing type of setting, described control unit receives the pressing signal sent from described manual cardiopulmonary resuscitation's machine.
The ventilatory frequency of described high frequency jet ventilator is 10～200 times/min, and maximal voluntary ventilation is not less than 20L/min.
For the patient implementing cardio-pulmonary resuscitation, and this patient has built up artificial airway's (namely completing tracheal intubation or laryngeal mask), common respirator or human assistance ventilation can be replaced by thorax resilience trigger higher frequency jet ventilator provided by the invention, uninterrupted external chest compression can be carried out, reduce the pressing intermittent time；At patient's cardio-pulmonary resuscitation thorax resilience phase jet ventilation, it is effectively promoted the complete resilience of thorax, now ventilates and pulmonary vascular extruding can be promoted lung blood backflow heart, increase heart blood back amount, promote the blood circulation under external chest compression.
External chest compression is by the committed step of effective cardio-pulmonary resuscitation.The frequency of external chest compression and pressing break time be the quality determining cardio-pulmonary resuscitation.Pressing break time if able to shorten, arteria coronaria and heart can obtain better perfusion, and its prognosis also will be improved.Present invention achieves and complete the ventilation to patient when uninterrupted external chest compression, greatly reduce the pressing intermittent time, can ventilate during the thorax resilience of patient accurately, arteria coronaria and heart, cerebral perfusion can be effectively improved, so that patient obtains better prognosis.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. a cardio-pulmonary resuscitation trigger-type high frequency jet ventilator, it is characterised in that include control unit and jet ventilation device；Described jet ventilation device is connected to artificial airway by gas circuit；Described control unit is connected to the perception unit for the fluctuating of perception thorax or respiratory air flow or manual cardiopulmonary resuscitation's machine；Described control unit receives perceptual signal that described perception unit sends or after the pressing signal of manual cardiopulmonary resuscitation's machine, the terminal in thorax pressing sends beginning jet instruction to jet ventilation device；Terminal in thorax resilience sends stopping jet instruction；Described jet ventilation device, according to the instruction received, starts jet ventilation to artificial airway or stops jet ventilation.
2. a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator according to claim 1, it is characterised in that described perception unit is for monitoring the flow transducer of air flue air-flow change in pressing process.
3. a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator according to claim 1, it is characterised in that described perception unit is the alignment sensor for monitoring thorax fluctuations.
4. a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator according to claim 1, it is characterised in that described perception unit includes the flow transducer for monitoring air flue air-flow change in pressing process and for monitoring the alignment sensor of thorax fluctuations.
5. a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator according to claim 1, it is characterised in that described control unit receives the pressing signal sent from described manual cardiopulmonary resuscitation's machine.
6. a kind of cardio-pulmonary resuscitation trigger-type high frequency jet ventilator according to claim 1, it is characterised in that the ventilatory frequency of described high frequency jet ventilator is 10～200 times/min, and maximal voluntary ventilation is not less than 20L/min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610087882.9A CN105749395B (en) | 2016-02-16 | 2016-02-16 | A kind of CPR trigger-type high frequency jet ventilator |
| PCT/CN2017/080579 WO2017140280A1 (en) | 2016-02-16 | 2017-04-14 | Trigger-type high frequency jet ventilator for cardiopulmonary resuscitation, and sensing and regulating ventilator for cardiopulmonary resuscitation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610087882.9A CN105749395B (en) | 2016-02-16 | 2016-02-16 | A kind of CPR trigger-type high frequency jet ventilator |
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| CN105749395A true CN105749395A (en) | 2016-07-13 |
| CN105749395B CN105749395B (en) | 2019-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017140280A1 (en) * | 2016-02-16 | 2017-08-24 | 潘楚雄 | Trigger-type high frequency jet ventilator for cardiopulmonary resuscitation, and sensing and regulating ventilator for cardiopulmonary resuscitation |
| CN107362427A (en) * | 2017-09-13 | 2017-11-21 | 深圳迈瑞生物医疗电子股份有限公司 | Vent method and lung ventilator during a kind of CPR |
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| CN107362427A (en) * | 2017-09-13 | 2017-11-21 | 深圳迈瑞生物医疗电子股份有限公司 | Vent method and lung ventilator during a kind of CPR |
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| CN105749395B (en) | 2019-01-04 |
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