CN104720736B - A kind of jet ventilation laryngoscope - Google Patents
A kind of jet ventilation laryngoscope Download PDFInfo
- Publication number
- CN104720736B CN104720736B CN201510182226.2A CN201510182226A CN104720736B CN 104720736 B CN104720736 B CN 104720736B CN 201510182226 A CN201510182226 A CN 201510182226A CN 104720736 B CN104720736 B CN 104720736B
- Authority
- CN
- China
- Prior art keywords
- valve
- frequency
- air
- low
- pneumatic
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
-
- 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
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Emergency Medicine (AREA)
- Physiology (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Endoscopes (AREA)
Abstract
The present invention relates to a kind of jet ventilation laryngoscope, the laryngoscope blade being connected including laryngoscope handle and with the laryngoscope handle, the laryngoscope blade front end is provided with gas injection tube, the first air delivering pipeline is provided with the laryngoscope handle, the second air delivering pipeline connected with first air delivering pipeline is provided with the laryngoscope blade, second air delivering pipeline is connected with gas injection tube, arranges pneumatic high-frequency impulse valve on first air delivering pipeline.The present invention connects in laryngoscope handle and accesses special pulse valve, adjustable frequency air-flow pulse can be produced, conventional laryngoscope is made when oral trachea cannula operation is carried out, the hyperbaric oxygen air pulse for meeting high-frequency jet ventilation requirement is provided, and safer, reliable technical guarantee is provided so as to the trachea cannula operation for CPR first aid.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of jet ventilation laryngoscope.
Background technology
The endotracheal intubation laryngoscope for commonly using on medicinal at present is all the base for only possessing illumination and appearing glottis
The traditional laryngoscope of this function.Most of improvement is all by changing the shape of eyeglass, angle etc., or increases shooting work(
Can, it is beneficial to preferably and appears and observe glottis, then carries out accurate intubation.But, due to oral cavity, the glottis of patient
Physiological structure there is congenital sex differernce, or the difference due to aspects such as wound, concrete illness, the positions of intubation, lead
Cause in actual mechanical process, intubation time is likely to the tenability limit more than patient's anoxic.In this case, in order to avoid anoxic
The brain damage for causing or hypercapnia, medical worker have to interrupt intubation, again to patient's pressurization oxygen therapy so as to
Alleviate promoting the circulation of qi cannula operation again after anoxic, this process is not only easily caused intubation defeat, even if success, it is also difficult to which it is right to avoid
Patient's mouth cause damage.Therefore, there is obvious defect in traditional laryngoscope in terms of clinical practice.Nearly ten years, on market
A kind of innovation laryngoscope is occurred in that, they are accessed to laryngoscope using the principle of clinically generally accepted high-frequency jet ventilation
Medical high pressure oxygen source, is opened by the closing of magnetic valve and closes or the intermittent blocking hyperbaric oxygen air-flow of manual mode is to produce height
Pressure oxygen pulse.This pulse or by a set of external device hyperbaric oxygen access laryngoscope before just by hyperbaric oxygen pulses generation
Out, then directly pulse is imported laryngoscope, or special purpose device is embedded in produce pulse in laryngoscope handle.No matter which kind of side
Formula, produced hyperbaric oxygen pulse is finally from the mouth of pipe ejection of the elongated wireway of eyeglass front end.So in catheterization procedure,
As long as the front end rough alignment glottis direction of laryngeal mirror lens, the hyperbaric oxygen pulse of ejection are just possible to be partially into air flue and reach
Lung deep, helps displace partial CO 2 and enter alveolar, realizes oxygen conjunction.The basic fundamental thinking of the present invention and above-mentioned product
The thinking of product is consistent.
But, the shortcoming of prior art is also apparent from.Firstly, for the embedded pulse generating unit of laryngoscope handle, by
In the limitation of the mode of its hyperbaric oxygen pulses generation, the pulse frequency for actually obtaining is very low, is essentially identical to the nature of people
Respiratory rate 15-25 beat/min or so, as a result so that this aeration status should be referred to as, " normal frequency intermitent positive pressure injection is logical
Gas ".Its technical characteristic compared with the high-frequency jet ventilation for having obtained clinical accreditation be differentiated, for example, the concept of high frequency
Should be more than more than 4 times, i.e., 60 beat/min of general breathing frequency more than people；The tidal volume very little of high-frequency ventilation, substantially
The anatomical dead space amount of alveolar is close to, between about 50-300 milliliter.And the oxygen supply chopper frequency of the technology and pulse frequency are one
Individual concept, tidal volume is also just considerably beyond the concept of 50-300 milliliter.Therefore, although prior art can improve trachea cannula
Under the conditions of patient anaerobic condition, but, ventilation mechanism and carbon dioxide displacement with discharge effect in terms of, exist
Uncertain, unsharp place, compared with real high-frequency jet ventilation, effect on can variant, the big discounting of clinical value
Button.
In addition, for pulse generating unit external, hyperbaric oxygen pulse is introduced directly into laryngoscope and sprays in the case of, actually
The high pressure that meet high-frequency jet ventilation principle mandates is exactly produced by an external electromagnetism, mechanical high frequency jet ventilator
Oxygen pulse, imports and is injected into human body via laryngeal mirror lens front end.This technology causes that whole system volume is big, weight big,
Carry very inconvenient, and due to exist excessive arrange, adjustment link, for required by CPR first aid easy to use,
Willing feature misfits, and is much limited to during practical application.
Content of the invention
In order to overcome technological deficiency present in prior art, the present invention proposes a kind of jet ventilation larynx of compact conformation
Mirror.
The technical measures that implements above-mentioned purpose of the present invention and adopt are as described below：
A kind of jet ventilation laryngoscope, the laryngoscope blade being connected including laryngoscope handle and with the laryngoscope handle, the laryngoscope blade front end
Gas injection tube is provided with, the first air delivering pipeline in the laryngoscope handle, is provided with, be provided with the laryngoscope blade defeated with described first
Second air delivering pipeline of air pipe connection, second air delivering pipeline is connected with gas injection tube, in first appendix
Pneumatic high-frequency impulse valve is set on road, and the inlet suction port of the pneumatic high-frequency impulse valve is by first air delivering pipeline and outside
Source of the gas connects, and the air outlet adapter of the pneumatic high-frequency impulse valve is connected with first air delivering pipeline, defeated by described first
Gas is delivered to gas injection tube by air pipe and the second air delivering pipeline.
Wherein, also include low frequency valve, the low frequency valve is low-frequency pulse valve or low frequency hand-operated valve, the low frequency valve is arranged
On the first air delivering pipeline, the low frequency valve inlet suction port is connected with the air outlet adapter of the pneumatic high-frequency impulse valve, described low
Frequency valve air outlet adapter is connected with first air delivering pipeline.
Wherein, the pneumatic high-frequency impulse valve includes valve seat, valve body and valve gap, the valve body two ends respectively with valve seat, valve
Lid closing connection forms cavity, is provided with and can form pneumatic the first annular groove of high-frequency impulse valve space and pneumatic high frequency in the cavity
The valve element in the second annular groove of pulse valve space, pneumatic the first annular groove of high-frequency impulse valve space and the pneumatic high-frequency impulse valve
Two annular groove spaces mutually do not connect, and the valve element is may move in the cavity；The pneumatic high-frequency impulse valve inlet suction port with go out
Gas joint is arranged on valve body, is connected with the cavity by air flue respectively；The link position of the inlet suction port and cavity with
Valve element movement is alternately in pneumatic the first annular groove of high-frequency impulse valve space or in pneumatic the second annular groove of high-frequency impulse valve space,
The air outlet adapter is in pneumatic the second annular groove of high-frequency impulse valve space all the time with the link position movement of cavity, the valve
Auxiliary flow path is additionally provided with inside seat, valve body and valve gap, the auxiliary port guides air current flow, makes air-flow apply valve element
Pressure, promotes valve core movement.
Wherein, the auxiliary flow path of pneumatic high-frequency impulse valve is two, aids in gas including pneumatic high-frequency impulse valve first
Circulation road and pneumatic the second auxiliary flow path of high-frequency impulse valve, pneumatic the first auxiliary flow path of high-frequency impulse valve air inlet
Mouth is arranged on the pipeline that interface of giving vent to anger is connected with cavity, the gas outlet of pneumatic first auxiliary flow path of high-frequency impulse valve
Pneumatic high-frequency impulse valve is arranged at the valve end in its first annular groove space；Pneumatic second secondary air of high-frequency impulse valve
Channel inlet mouth is arranged on the corresponding valve body of pneumatic the first annular groove of high-frequency impulse valve space stroke, with pneumatic high-frequency impulse valve
One annular groove space connects all the time, and the gas outlet of pneumatic second auxiliary flow path of high-frequency impulse valve is arranged on pneumatic high frequency arteries and veins
Valve is rushed at the valve end in its second annular groove space.
Wherein, the cavity includes the pneumatic high-frequency impulse valve body cavity of valve inner, the gas being arranged on inside valve gap
Dynamic the first volumetric bin of high-frequency impulse valve and pneumatic the second volumetric bin of high-frequency impulse valve being arranged on inside valve seat.
Wherein, the pneumatic high-frequency impulse valve also includes air flow regulator, and the air flow regulator is to secondary air
The gas flow of passage is controlled.
Wherein, the low-frequency pulse valve includes valve seat, valve body and valve gap, and the valve body two ends are sealed with valve seat, valve gap respectively
Close connection and cavity is formed, be provided with the cavity and can form the first annular groove of low-frequency pulse valve space and the second ring of low-frequency pulse valve
The valve element of slot space, the first annular groove of low-frequency pulse valve space are not mutually connected with the second annular groove of low-frequency pulse valve space,
The valve element is may move in the cavity；The low-frequency pulse valve inlet suction port is arranged on valve body with air outlet adapter, respectively
Connected with the cavity by air flue；The inlet suction port is replaced in low-frequency pulse with valve element movement with the link position of cavity
In in the first annular groove of valve space and the second annular groove of low-frequency pulse valve space, the air outlet adapter is begun with the link position movement of cavity
Eventually in the second annular groove of low-frequency pulse valve space, inside the valve seat, valve body and valve gap, auxiliary flow path is additionally provided with, described
Auxiliary port guides air current flow, makes air-flow press valve element, promotes valve core movement.
Wherein, the auxiliary flow path of low-frequency pulse valve be two, including the first auxiliary flow path of low-frequency pulse valve with
The second auxiliary flow path of low-frequency pulse valve, the first auxiliary flow path of low-frequency pulse valve air inlet are arranged on interface of giving vent to anger
On the pipeline being connected with cavity, it is close that the gas outlet of first auxiliary flow path of low-frequency pulse valve is arranged on low-frequency pulse valve
At the valve end in its first annular groove space；The second auxiliary flow path of low-frequency pulse valve air inlet is arranged on low-frequency pulse valve
On the corresponding valve body of one annular groove space stroke, connected with the first annular groove of low-frequency pulse valve space all the time, the low-frequency pulse valve
The gas outlet of two auxiliary flow path is arranged on low-frequency pulse valve at the valve end in its second annular groove space.
Wherein, the cavity includes the low-frequency pulse valve body cavity of valve inner, the low frequency arteries and veins being arranged on inside valve gap
Rush the first volumetric bin of valve and the second volumetric bin of low-frequency pulse valve being arranged on inside valve seat.
Wherein, the low-frequency pulse valve also includes air flow regulator, and the air flow regulator is to auxiliary flow path
Gas flow be controlled.
Wherein, the air-flow pulse frequency produced by the pneumatic high-frequency impulse valve is 60-300 beat/min.
Wherein, the air-flow pulse frequency produced by the low-frequency pulse valve is 15-25 beat/min.
Wherein, first air delivering pipeline and the second air delivering pipeline are gas passage, and the gas passage can be by defeated
Gas flexible pipe and/or internal duct are constituted.
Specifically, a kind of jet ventilation laryngoscope disclosed in this invention, including laryngoscope handle and laryngoscope blade, laryngoscope handle except
Have during using laryngoscope outside holding function, inner hollow chamber arranges pneumatic high-frequency impulse valve, low-frequency pulse valve, external air source and connects
Head, laryngoscope handle out splice going splice, air hose, laryngoscope handle connection end.External air source joint by flexible pipe and is arranged on pneumatic high-voltage
Inlet suction port connection on pulse valve；Air outlet adapter on pneumatic high-frequency impulse valve is by flexible pipe and the air inlet connecting of low-frequency pulse valve
Head connection；Air outlet adapter on low-frequency pulse valve is by the laryngoscope handle fittings on flexible pipe and laryngoscope handle connection end, laryngoscope handle
Connection end inner air path is threaded connection with laryngoscope handle joint and connects.According to the needs of concrete structure, the low-frequency pulse valve
Can also be substituted with hand-operated valve, manually, with need frequency alternating press, release button 64, equally permissible
Realize aforesaid controlled high-frequency impulse ventilation.The hand-operated valve can commercially select suitable finished product or self-control.
Laryngoscope blade is made up of laryngoscope blade connection end, gas injection tube, illumination conduit, handle.
By steel ball positioning and the connection end clamping of laryngoscope blade laryngoscope blade, laryngoscope blade connection end is wrapped for laryngoscope handle laryngoscope handle connection end
Containing inner air path and fiber optic conduction pipeline (being depicted without on figure), which forms path with gas injection tube, illumination conduit respectively,
With while the clamping of laryngoscope blade connection end, the first air delivering pipeline in laryngoscope handle connection end is connected with laryngoscope blade for laryngoscope handle connection end
The second air delivering pipeline connection in end.
Using technical scheme, following technique effect can be obtained：
The present invention devises a kind of pneumatic high-voltage pulse generating unit of special miniaturization, series connection in the laryngoscope handle
Enter special pulse valve, with the air pulse for having medical value.Technical solution of the present invention replaces routine in prior art
The magnetic valve being embedded in inside laryngoscope handle or hand control valve, under certain flow condition, technical solution of the present invention can be produced
Raw 60-300 beat/min intermittent adjustable frequency air-flow pulse, can make conventional laryngoscope carry out inserting through orotracheal tube
When pipe is operated, additionally it is possible to provide and meet the hyperbaric oxygen air pulse of high-frequency jet ventilation requirement, so as to for CPR first aid
Trachea cannula operation provides safer, reliable technical guarantee.
Description of the drawings
Fig. 1 is 1 front view of jet ventilation laryngoscope embodiment disclosed in this invention；
Fig. 2 is A-A direction view in jet ventilation laryngoscope embodiment 1 disclosed in this invention；
Fig. 3 is that pneumatic high-frequency impulse valve is in state for the moment in jet ventilation laryngoscope embodiment 1 disclosed in this invention
Structural profile schematic diagram；
Fig. 4 be in jet ventilation laryngoscope embodiment 1 disclosed in this invention pneumatic high-frequency impulse valve in state two when
Structural profile schematic diagram；
Fig. 5 is that 1 middle-low frequency pulse valve of jet ventilation laryngoscope embodiment disclosed in this invention is in state structure for the moment
Generalized section；
Fig. 6 be 1 middle-low frequency pulse valve of jet ventilation laryngoscope embodiment disclosed in this invention in state two when structure
Generalized section；
Fig. 7 is 1 middle-low frequency pulse valve gas flow output waveform figure of jet ventilation laryngoscope embodiment disclosed in this invention；
Fig. 8 is pneumatic high-frequency impulse valve gas flow output wave in jet ventilation laryngoscope embodiment 1 disclosed in this invention
Shape figure；
Fig. 9 is gas flow output waveform figure in jet ventilation laryngoscope embodiment 1 disclosed in this invention；
Figure 10 is 2 profile of jet ventilation laryngoscope embodiment disclosed in this invention.
1- laryngoscope blade；2- handle；3- laryngoscope handle；4- laryngoscope handle out splice going splice；5- laryngoscope handle inner air path；6- gas injection
Pipe；7- illumination conduit；8- laryngoscope blade inner air path；9- air hose；10- low-frequency pulse the first adjusting knob of valve；11- gives vent to anger and connects
Head；12- low-frequency pulse the second adjusting knob of valve；13- inlet suction port；14- air hose；15- external air source joint；16- is pneumatic
The second adjusting knob of high-frequency impulse valve；The pneumatic high-frequency impulse valve of 17-；18- air outlet adapter；19- air hose；The pneumatic high frequency of 20-
The first adjusting knob of pulse valve；21- inlet suction port, 22- low-frequency pulse valve；The pneumatic high-frequency impulse valve valve gap of 23-；The pneumatic height of 24-
Frequency pulse valve core；25- exhaust outlet；Pneumatic the second annular groove of the high-frequency impulse valve space of 26-；27- exhaust outlet；The pneumatic high frequency arteries and veins of 28-
Rush valve body；The pneumatic high-frequency impulse valve base of 29-；Pneumatic the second volumetric bin of high-frequency impulse valve of 30-；The pneumatic high-frequency impulse valve of 33-
First annular groove space；Pneumatic the first volumetric bin of high-frequency impulse valve of 42-；43- low-frequency pulse valve valve gap；52- low-frequency pulse valve base；
53- low-frequency pulse the second volumetric bin of valve；54- low-frequency pulse valve core；55- exhaust outlet；The second annular groove of 56- low-frequency pulse valve is empty
Between；57- exhaust outlet；58- low-frequency pulse the first volumetric bin of valve；60- laryngoscope handle connection end；61- laryngoscope blade connection end；62- low frequency
The first annular groove of pulse valve space；31st, 32,34,35,36,37,38,39,40,41,44,45,47,48,49,50,51,59- gas
Road；63- hand-operated valve；64- button.
Specific embodiment
Embodiment 1：
As shown in Figure 1 and Figure 2, a kind of pneumatic jet ventilation laryngoscope that can produce intermittent high-voltage pulse air-flow, including larynx
Mirror handle 3 and laryngoscope blade 1, are disposed with external air source joint 15, first defeated in the inner hollow chamber of laryngoscope handle 3 from the bottom to top
Air pipe air hose 14, pneumatic high-frequency impulse valve 17, low-frequency pulse valve 22, air hose 9 and laryngoscope handle out splice going splice 4, also
Including the laryngoscope handle connection end 60 being connected with laryngoscope blade 1.External air source joint 15 passes through air delivering pipeline flexible pipe 14 and is arranged on
Inlet suction port 13 on pneumatic high-frequency impulse valve 17 is connected；Air outlet adapter 18 on pneumatic high-frequency impulse valve 17 passes through air hose
19 are connected with the inlet suction port 21 of low-frequency pulse valve 2；Air outlet adapter 11 on low-frequency pulse valve 22 is by air hose 9 and laryngoscope
Laryngoscope handle out splice going splice 4 on handle connection end 60 is connected, and 60 inner air path 5 of laryngoscope handle connection end and laryngoscope handle out splice going splice 4 are logical
Cross threaded connection.Wherein, air hose 14,19,9 together constitutes, with inner air path 5, first be arranged in laryngoscope handle 3
Air delivering pipeline.
As shown in figure 1, laryngoscope blade 1 includes laryngoscope blade connection end 61, the handle 2, gas being connected with laryngoscope handle from the bottom to top
Body playpipe 6 and illumination conduit 7, wherein, handle 2 is articulated and connected with laryngoscope blade 1.Laryngoscope handle connection end 60 above laryngoscope handle 3
By steel ball positioning and 61 clamping of laryngoscope blade connection end on laryngoscope blade 1, in laryngoscope blade connection end 61,8 He of inner air path is provided with
Fiber optic conduction pipeline, inner air path 8 are the second air delivering pipeline being arranged on inside laryngoscope blade, inner air path 8 and gas injection
Pipe 6 forms path, and fiber optic conduction pipeline illumination conduit 7 forms path, blocks in laryngoscope handle connection end 60 and laryngoscope blade connection end 61
While connecing, 60 inner air path 5 of laryngoscope handle connection end is connected with 61 inner air path 8 of laryngoscope blade connection end, additionally, laryngoscope handle 3 is also
Include battery and related accessories, light source, light conduct fine pipe etc., due to belonging to the conventional configuration in laryngoscope field, the present invention does not do
Description.
The structure that Fig. 3,4 particularly illustrate pneumatic high-frequency impulse valve, the pneumatic high-frequency impulse valve 17 include valve seat 29, valve
Body 28 and valve gap 23,28 two ends of valve body are connected to form cavity with valve seat 29, the closing of valve gap 23 respectively, and the cavity includes valve body 28
Internal pneumatic high-frequency impulse valve body cavity, pneumatic the first volumetric bin of high-frequency impulse valve 42 being arranged on inside valve gap 23 and
Pneumatic the second volumetric bin of high-frequency impulse valve 30 being arranged on inside valve seat 29.Be provided with the valve cavity can be formed pneumatic
The valve element 24 in the first annular groove of high-frequency impulse valve space 33 and pneumatic the second annular groove of high-frequency impulse valve space 26, the pneumatic high frequency arteries and veins
Rush the first annular groove of valve space 33 mutually not connect with pneumatic the second annular groove of high-frequency impulse valve space 26, the valve element 24 is described
May move in valve cavity；The pneumatic high-frequency impulse valve inlet suction port 13 is arranged on valve body 28 with air outlet adapter 18, respectively
Connected with the valve cavity by air flue；The inlet suction port 13 is replaced with the movement of valve element 24 with the link position of valve cavity
In pneumatic the first annular groove of high-frequency impulse valve space 33 or in pneumatic the second annular groove of high-frequency impulse valve space 26, described give vent to anger
Joint 18 is in pneumatic the second annular groove of high-frequency impulse valve space 26 all the time with the link position movement of valve cavity, the valve seat
29th, auxiliary flow path is additionally provided with inside valve body 28 and valve gap 23, the auxiliary port guides air current flow, makes air-flow to valve element
Pressure, promotes valve core movement.Wherein, the auxiliary flow path of pneumatic high-frequency impulse valve is two, including pneumatic high-frequency impulse valve
First auxiliary flow path and pneumatic the second auxiliary flow path of high-frequency impulse valve, the pneumatic high-frequency impulse valve first aid in gas
Circulation road is made up of air flue 38,39,40,41；Pneumatic second auxiliary flow path of high-frequency impulse valve by air flue 37,36,34,
32nd, 31 composition.Wherein, the pneumatic high-frequency impulse valve also includes air flow regulator, and the air flow regulator includes first
Adjusting knob and the second adjusting knob, first adjusting knob are arranged on the first auxiliary port, second adjusting knob
It is arranged on the second auxiliary port, the gas flow to auxiliary flow path is controlled.
The structure that Fig. 5,6 show low-frequency pulse valve, the low-frequency pulse valve 22 include valve seat 52, valve body 46 and valve gap
43,46 two ends of the valve body are connected to form cavity with valve seat 52, the closing of valve gap 43 respectively, and the cavity includes the low of valve inner
Frequency pulse valve valve cavity, the first volumetric bin of low-frequency pulse valve 58 being arranged on inside valve gap and is arranged on low inside valve seat
The second volumetric bin of frequency pulse valve 53.It is provided with the cavity and can forms the first annular groove of low-frequency pulse valve space 58 and low-frequency pulse
The valve element 54 in the second annular groove of valve space 56, the first annular groove of low-frequency pulse valve space 58 and second annular groove of low-frequency pulse valve
Space 56 does not mutually connect, and the valve element 54 is may move in the valve cavity；The pneumatic high-frequency impulse valve inlet suction port 21
It is arranged on valve body 46 with air outlet adapter 11, is connected with the cavity by air flue respectively；The inlet suction port 21 and cavity
Link position is alternately empty in 58 interior and the second annular groove of low-frequency pulse valve of the first annular groove of low-frequency pulse valve space with the movement of valve element 54
Between in 56, the link position movement of the air outlet adapter 11 and cavity all the time in the second annular groove of low-frequency pulse valve space 56,
Auxiliary flow path, the auxiliary flow path of the low-frequency pulse valve is additionally provided with inside the valve seat 52, valve body 46 and valve gap 43
For two, including the first auxiliary flow path of low-frequency pulse valve and the second auxiliary flow path of low-frequency pulse valve, the low frequency arteries and veins
Rush the first auxiliary flow path of valve to be made up of air flue 48,45,44,59；Second auxiliary flow path of low-frequency pulse valve is by gas
Road 47,49,50,51 constitutes.The auxiliary port guides air current flow, makes air-flow press valve element, promotes valve core movement.Described
Low-frequency pulse valve also includes air flow regulator, and the air flow regulator includes the first adjusting knob of low-frequency pulse valve 10 and low
The second adjusting knob of frequency pulse valve 12, first adjusting knob 10 are arranged on the first auxiliary port, and described second adjusts rotation
Button 12 is arranged on the second auxiliary port, and the gas flow to auxiliary flow path is controlled.
The pulse ventilation course of work of jet ventilation laryngoscope disclosed in this invention is as follows：
First source of oxygen is connected with the external air source joint 15 on laryngoscope handle by flexible pipe, opens source of oxygen and set
Pressure, opens switch valve, and oxygen stream enters high frequency by switch valve, external air source joint 15, air hose 14, inlet suction port 13
Pulse valve 17, inside high-frequency impulse valve 17, air-flow is through the second annular groove space 26, air flue 35, air outlet adapter 18, air hose
19th, joint 21 enters low-frequency pulse valve 22 (as shown in Figure 3).Inside low-frequency pulse valve 22, air-flow through the second annular groove space 56,
Air flue 48, air outlet adapter 11, air hose 9, laryngoscope handle out splice going splice 4, inner air path 5,8, gas injection tube 6 is finally entered,
Spray oxygen (as shown in Figure 5) is implemented to patient.
Meanwhile, inside high-frequency impulse valve 17, a part of gas passes through air flue 38, air flue 39, air flue 40,41, enters high
First volumetric bin 42 of frequency pulse valve, is elapsed over time, and the gas pressure in the first volumetric bin 42 gradually rises, and which is to valve element
24 pressure for applying also are gradually increased, and the gas pressure up in the first volumetric bin 42 is big to promoting valve element 24, now valve
Core 24 will move down into lower end seam position (as shown in Figure 4), and 17 air inlet of high-frequency impulse valve is switched to and the first annular groove space
33 communicate, while having interrupted to the supply of down stream low pressure pulse valve 22, residual air is discharged by exhaust outlet 27.Now oxygen will pass through
First annular groove space 33, air flue 37,36,34,32,31, the second volumetric bin 30 of high-frequency impulse valve is entered, is elapsed over time,
Gas pressure in second volumetric bin 30 gradually rises, and which is also gradually increased to the pressure that valve element 24 applies, until the second volume
Gas pressure in storehouse 30 is big to promoting valve element 24, now valve element 24 by move on to upper end seam position (as shown in Figure 3),
Complete a cycle.Hereafter high-frequency impulse valve inlet suction port 13 is connected with air flue 35, joint 18 again, and oxygen stream will flow to downstream
Low-frequency pulse valve, as the last cycle, at this moment a part of gas continues through air flue 38, and air flue 39, air flue 40,41 enter
Enter the first volumetric bin 42 of high-frequency impulse valve, the pressure of the first volumetric bin 42 is gradually risen again, until the first volumetric bin 42 is pressed
Power is again able to promote valve element 24, and valve element 24 moves down the state two for being switched to high-frequency impulse valve again, closes air inlet gas again
Stream.Go round and begin again, make high-frequency impulse valve that the continuous flow of air inlet is transformed into high-frequency impulse air-flow.Which changes over, flow
The oscillogram of output is shown in Fig. 8.
After air-flow enters low-frequency pulse valve 22, except most of gas flow gas injection tube 6, small portion of gas is still had to lead to
Cross air flue 48,45, air flue 44, air flue 59, the first volumetric bin 58 (as shown in Figure 5) of low-frequency pulse valve is entered, is pushed away over time
Move, the gas pressure in the first volumetric bin of low-frequency pulse valve 58 gradually rises, which is also gradually increased to the pressure that valve element 54 applies,
Until the gas pressure in the first volumetric bin 58 is big to promoting valve element 54, now valve element 54 will move down into lower end seam position
(as shown in Figure 6), low-frequency pulse valve inlet suction port 21 is switched to and is communicated with the first annular groove of low-frequency pulse valve space 58, while in
The supply broken to downstream injection pipe, residual air are discharged by exhaust outlet 27.Now oxygen will be by the first annular groove space 58, air flue
47th, 49,50,51, the second volumetric bin 53 of low-frequency pulse valve is entered, is elapsed over time, the gas pressure in the second volumetric bin 53
Power gradually rises, and which is also gradually increased to the pressure that valve element 54 applies, until the gas pressure in the second volumetric bin 53 arrives greatly energy
Enough promote valve element 54, now valve element by move on to upper end seam position (as shown in Figure 5), complete a cycle.Hereafter low frequency arteries and veins
Rush valve inlet suction port 21 to connect with air flue 48, joint 11 again by the second annular groove space 56, oxygen stream flows to the injection in downstream
Pipe.As the last cycle, at this moment a part of gas continues through air flue 48,45, air flue 44, air flue 59, enters low-frequency pulse
First volumetric bin 58 of valve, the pressure of the first volumetric bin 58 are gradually risen again, until the pressure of the first volumetric bin 58 again can
Valve element 54 is enough promoted, valve element 54 moves down the state two for being switched to low-frequency pulse valve again, close charge air flow again.Zhou Erfu
Begin, make low-frequency pulse valve that the continuous flow of air inlet is transformed into low-frequency pulse air-flow.Which changes over, the waveform of flow output
Figure is shown in Fig. 7.And high-frequency impulse valve and low-frequency pulse valve are used in series, its output waveform is as shown in Figure 9.Which is exactly what is needed the reason that wants
Think waveform.
In this example, low-frequency pulse valve provides intermittent supply, frequency between per minute 15-25 time, to adapt to people
Normal respiratory rate.The air-flow frequency that high-frequency impulse valve is produced about per minute 60-300 time, to there is medical value
High-frequency impulse air-flow.
In the time dependent curve of low frequency airflow waveform of Fig. 7, there are two key parameters, i.e. air-flow output time
T1, and air-flow deadline T2.
In the range of conventional control pressure (0.3-0.8MPa), pressure ratio Pc/Pk is generally less than critical pressure ratio, therefore
T1 is determined by following formula：
T1=Tn [0.5-Pa/P+1/2sin-1 (2Pc/P-1)]
In formula：Time constant：Tn=5.217V1* (273/TK) 0.5/KS
V1：The volume of the first volumetric bin 58 of low-frequency pulse valve, unit：L
TK：The oxygen temperature of adjusting knob upstream, unit are open type temperature, generally take 20 degree of Celsius temperature, i.e., during calculating
293 degree of open type temperature
K：Adiabatic exponent, takes 1.4 for oxygen
S：The net sectional area of throttling vapour lock, unit：Mm2, the sectional area can carry out dynamic regulation by adjusting knob 10,
So as to reach the purpose of indirect regulating time T1.
P：Oxygen output pressure, absolute pressure, unit：bar
Pa：Atmospheric pressure, absolute pressure, unit：bar
Pc：Absolute pressure in reversing valve core switching instantaneous volumetric storehouse
The structure of the usual and valve element of the value has relation, can be tried to achieve by listing the equilibrium equation of power.By way of this example,
Valve element weight is ignored, and with reference to corresponding each size in low-frequency pulse valve state two, computing formula is as follows：
Pc=P* (D22-D32)/D12-Pa* (D22-D32)/D12+Pa
It can be seen that：In low-frequency pulse valve core 54, valve body 46, first, second volumetric bin 58, the determination of 53 sizes, air inlet
In the case of pressure stability, by the net sectional area of throttling vapour lock, T1 mainly determines that throttling vapour lock net sectional area is bigger, and T1 gets over
Little, throttling vapour lock net sectional area is less, and T1 is bigger, therefore by the height of the first adjusting knob of low-frequency pulse valve 10, permissible
Adjust the inlet period of low-frequency pulse oxygen stream.Likewise, the height of the second adjusting knob of low-frequency pulse valve 12, can be adjusted low
The dying the time of frequency pulse oxygen stream.
For high-frequency impulse valve, the duration that again may be by adjusting throttling vapour lock to realize T3, T4 in Fig. 8 is adjusted, i.e.,：
Pneumatic the first adjusting knob of high-frequency impulse valve 20 can realize the regulation to T3 duration；Pneumatic the second adjusting knob of high-frequency impulse valve
16 can realize the regulation to T4 duration.
Embodiment 2：
As shown in Figure 10, a kind of jet ventilation laryngoscope that can produce intermittent high-voltage pulse air-flow, sprays in this example logical
The essentially consisting in the difference of embodiment 1 in structure of gas laryngoscope：By 1 middle-low frequency pulse valve 22 of embodiment, manually valve 63 enters
Row substitute, manually, with need frequency alternating press, release button 64, can equally realize aforesaid controlled
High-frequency impulse is ventilated.The hand-operated valve 63 can commercially select suitable finished product or self-control.
Remaining technical characteristic of this example is same as Example 1, will not be described here.
The foregoing is only a kind of specific embodiment of the present invention, not limiting the practical range of the present invention, all according to
The equivalence changes that is done according to construction, feature and principle described in scope of the present invention patent or modification, all should be included in the present invention
In the protection domain of patent.
Claims (10)
1. a kind of jet ventilation laryngoscope, the laryngoscope blade being connected including laryngoscope handle and with the laryngoscope handle, the laryngoscope blade front end sets
Gas injection tube is equipped with, the first air delivering pipeline in the laryngoscope handle, is provided with, be provided with the laryngoscope blade and first gas transmission
Second air delivering pipeline of pipeline connection, second air delivering pipeline are connected with gas injection tube, it is characterised in that：Described
Pneumatic high-frequency impulse valve is set on one air delivering pipeline, and the inlet suction port of the pneumatic high-frequency impulse valve passes through first appendix
Road is connected with external air source, and the air outlet adapter of the pneumatic high-frequency impulse valve is connected with first air delivering pipeline, by institute
State the first air delivering pipeline and gas is delivered to gas injection tube by the second air delivering pipeline, also include low frequency valve, the low frequency valve is arranged
On the first air delivering pipeline, the inlet suction port of the low frequency valve is connected with the air outlet adapter of the pneumatic high-frequency impulse valve, described
The air outlet adapter of low frequency valve is connected with first air delivering pipeline.
2. a kind of jet ventilation laryngoscope according to claim 1, it is characterised in that：The low frequency valve be low-frequency pulse valve or
Person's low frequency hand-operated valve.
3. a kind of jet ventilation laryngoscope according to claim 1 and 2, it is characterised in that：The pneumatic high-frequency impulse valve bag
Valve seat, valve body and valve gap is included, the valve body two ends are connected to form cavity with the valve seat, valve gap closing respectively, in the cavity
The valve element that can form pneumatic the first annular groove of high-frequency impulse valve space and pneumatic the second annular groove of high-frequency impulse valve space is provided with, described
Pneumatic the first annular groove of high-frequency impulse valve space is not mutually connected with pneumatic the second annular groove of high-frequency impulse valve space, and the valve element exists
May move in the cavity；The inlet suction port of the pneumatic high-frequency impulse valve is set with the air outlet adapter of the pneumatic high-frequency impulse valve
Put on the valve body, connected with the cavity by air flue respectively；The inlet suction port of the pneumatic high-frequency impulse valve with described
The link position of cavity is alternately in pneumatic the first annular groove of high-frequency impulse valve space with valve element movement and the gas
In dynamic the second annular groove of high-frequency impulse valve space, the air outlet adapter of the pneumatic high-frequency impulse valve is moved with the link position of the cavity
Move all the time in pneumatic the second annular groove of high-frequency impulse valve space, inside the valve seat, valve body and valve gap, be additionally provided with auxiliary
Gas channel, the auxiliary flow path guide air current flow, make air-flow press the valve element, promote the valve core movement.
4. a kind of jet ventilation laryngoscope according to claim 3, it is characterised in that：The cavity includes the gas of valve inner
Dynamic high-frequency impulse valve body cavity, pneumatic the first volumetric bin of high-frequency impulse valve being arranged on inside valve gap and is arranged in valve seat
Pneumatic second volumetric bin of high-frequency impulse valve in portion.
5. a kind of jet ventilation laryngoscope according to claim 4, it is characterised in that：The pneumatic high-frequency impulse valve also includes
Air flow regulator, the air flow regulator are controlled to the gas flow of auxiliary flow path.
6. a kind of jet ventilation laryngoscope according to claim 2, it is characterised in that：The low-frequency pulse valve include valve seat,
Valve body and valve gap, the valve body two ends are connected to form cavity with the valve seat, valve gap closing respectively, and being provided with the cavity can
Form the valve element in low-frequency pulse the first annular groove of valve space and the second annular groove of low-frequency pulse valve space, first ring of low-frequency pulse valve
Slot space is not mutually connected with the second annular groove of low-frequency pulse valve space, and the valve element is may move in the cavity；Described low
The inlet suction port of frequency pulse valve is arranged on the valve body with the air outlet adapter of the low-frequency pulse valve, respectively by air flue and institute
State cavity connection；The inlet suction port of the low-frequency pulse valve is replaced in low frequency with valve element movement with the link position of the cavity
In the first annular groove of pulse valve space and the second annular groove of low-frequency pulse valve space in, the air outlet adapter of the low-frequency pulse valve with described
The link position movement of cavity is in the second annular groove of low-frequency pulse valve space, in the valve seat, valve body and valve gap all the time
Portion is additionally provided with auxiliary flow path, and the auxiliary flow path guides air current flow, makes air-flow press valve element, promotes valve element fortune
Dynamic.
7. a kind of jet ventilation laryngoscope according to claim 6, it is characterised in that：The cavity includes the low of valve inner
Frequency pulse valve valve cavity, the first volumetric bin of low-frequency pulse valve being arranged on inside valve gap and the low frequency being arranged on inside valve seat
The second volumetric bin of pulse valve.
8. a kind of jet ventilation laryngoscope according to claim 7, it is characterised in that：The low-frequency pulse valve also includes air-flow
Adjusting means, the air flow regulator are controlled to the gas flow of auxiliary flow path.
9. a kind of jet ventilation laryngoscope according to claim 1 and 2, it is characterised in that：The pneumatic high-frequency impulse valve institute
The air-flow pulse frequency of generation is 60-300 beat/min.
10. a kind of jet ventilation laryngoscope according to claim 2, it is characterised in that：Produced by the low-frequency pulse valve
Air-flow pulse frequency is 15-25 beat/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182226.2A CN104720736B (en) | 2015-04-16 | 2015-04-16 | A kind of jet ventilation laryngoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182226.2A CN104720736B (en) | 2015-04-16 | 2015-04-16 | A kind of jet ventilation laryngoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104720736A CN104720736A (en) | 2015-06-24 |
| CN104720736B true CN104720736B (en) | 2017-03-08 |
Family
ID=53445579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182226.2A Expired - Fee Related CN104720736B (en) | 2015-04-16 | 2015-04-16 | A kind of jet ventilation laryngoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104720736B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105231985A (en) * | 2015-11-03 | 2016-01-13 | 舒妮 | Ventilation laryngoscope with disposable laryngoscope lens |
| CN107376082A (en) * | 2017-08-25 | 2017-11-24 | 蔡容 | General anesthesia air-breather |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361647A (en) * | 2007-08-09 | 2009-02-11 | 张先 | Multifunctional laryngoscope |
| CN201375506Y (en) * | 2009-03-07 | 2010-01-06 | 王翠香 | Novel anesthetic laryngoscope |
| CN102283628A (en) * | 2011-07-08 | 2011-12-21 | 舒妮 | Electronic control high-efficiency jet ventilation laryngoscope |
| CN204542041U (en) * | 2015-04-16 | 2015-08-12 | 郭豫良 | A kind of jet ventilation laryngoscope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080193566A1 (en) * | 2007-02-09 | 2008-08-14 | Miller Christopher C | Use of high dose concentrations of gaseous nitric oxide |
| JP2008295823A (en) * | 2007-05-31 | 2008-12-11 | Teruaki Rokuta | Bronchoscope apparatus and spray device used by it |
-
2015
- 2015-04-16 CN CN201510182226.2A patent/CN104720736B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361647A (en) * | 2007-08-09 | 2009-02-11 | 张先 | Multifunctional laryngoscope |
| CN201375506Y (en) * | 2009-03-07 | 2010-01-06 | 王翠香 | Novel anesthetic laryngoscope |
| CN102283628A (en) * | 2011-07-08 | 2011-12-21 | 舒妮 | Electronic control high-efficiency jet ventilation laryngoscope |
| CN204542041U (en) * | 2015-04-16 | 2015-08-12 | 郭豫良 | A kind of jet ventilation laryngoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104720736A (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2009113536A (en) | DETECTION OF DEVIATIONS IN THE SYSTEM OF ARTIFICIAL LUNG VENTILATION IN A TALK MODE | |
| SE430848B (en) | TRAKEAL CHANNEL FOR USE IN JET SUPPLY OF BREATHING GAS WITH FREQUENCIES HIGHER THAN 600 / MIN | |
| CN104720736B (en) | A kind of jet ventilation laryngoscope | |
| CN110152253A (en) | A kind of respiratory function exercise instrument of flute shape | |
| AU2015222391A1 (en) | Laryngeal mask | |
| CN204542041U (en) | A kind of jet ventilation laryngoscope | |
| CN206424395U (en) | A kind of high-accuracy ventilation flow rate control system and medical breathing machine | |
| CN205031704U (en) | A atomizing device for having in wound breathing machine pipeline | |
| CN209060286U (en) | Atomising device is intubated in general anesthesia patients | |
| CN204050588U (en) | Endotracheal tube mouth inner fixer | |
| CN209204385U (en) | A kind of Cardiological manually respirator | |
| CN209500475U (en) | A kind of double lumen tube | |
| CN2187442Y (en) | Multi-function puncture needle for cycrothyroid membrane | |
| CN201248946Y (en) | Closed pressurizing oxygen-supplying device | |
| CN201603241U (en) | Atomized anti-dogging spray tool for anaesthesia | |
| CN204951883U (en) | Trachea cannula of accessible endoscope | |
| CN205307545U (en) | Internal medicine is breathed and is used disposable endotracheal tube | |
| CN206518752U (en) | A kind of pipe guide of Transnasal vent | |
| CN205831761U (en) | The visible laryngoscope of embedded carrying pipe draw-in groove eyeglass | |
| CN209048838U (en) | A kind of video optical wand having oxygen supply, airway administration and airway suction | |
| CN220142349U (en) | Dry powder inhaler device for pulmonary drug delivery | |
| CN211658988U (en) | Double-cavity bronchial cannula capable of adjusting air flow | |
| CN207837994U (en) | A kind of tube drawing training aids based on tracheal tube | |
| CN203123250U (en) | Breathing mask | |
| CN220459855U (en) | Multifunctional respiration training device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20200416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |