CN107158539A - A kind of high gas flow flow velocity prevents the nasopharyngeal air duct of nasal mucosa damage - Google Patents
A kind of high gas flow flow velocity prevents the nasopharyngeal air duct of nasal mucosa damage Download PDFInfo
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- CN107158539A CN107158539A CN201710506614.0A CN201710506614A CN107158539A CN 107158539 A CN107158539 A CN 107158539A CN 201710506614 A CN201710506614 A CN 201710506614A CN 107158539 A CN107158539 A CN 107158539A
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- pipeline section
- section
- head pipeline
- head
- air duct
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Classifications
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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
- A61M16/04—Tracheal tubes
- A61M16/0461—Nasoendotracheal tubes
-
- 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
- A61M25/00—Catheters; Hollow probes
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0618—Nose
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0625—Mouth
- A61M2210/065—Throat; Pharynx
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Emergency Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The nasopharyngeal air duct of nasal mucosa damage, including supervisor are prevented the invention discloses a kind of high gas flow flow velocity, the supervisor includes tailpipe section, middle pipeline section and the head pipeline section being sequentially connected；The internal diameter and external diameter of the head pipeline section are gradually reduced each along the direction of air flow direction, and the central axis of the outlet side end face and head pipeline section of head pipeline section.The present invention to nasopharyngeal air duct head pipeline section by being improved, the cross section perpendicular of its head pipeline section is in airway central shaft, make the uniform interior receipts of nasopharyngeal air duct head end, the internal diameter of head pipeline section is tapered into, and the outlet side curls inward of head pipeline section is formed round and smooth end face, make its crest truncation, can effectively prevent damage of the sharp head end of traditional nasopharyngeal air duct to schneiderian membrane.The internal diameter of head pipeline section is tapered into, and the outlet side curls inward of head pipeline section makes the gas outlet diameter of head pipeline section further diminish, and according to Poiseuille's law, then the increase of head end air-flow velocity, can be effectively increased the disperse of oxygen.
Description
Technical field
The invention belongs to nasopharyngeal air duct technical field, and in particular to a kind of high gas flow flow velocity prevents the nose of nasal mucosa damage
Swallow airway.
Background technology
Nasopharyngeal air duct is as a kind of airway open instrument for the Upper respiratory tract obstruction for preventing glossoptosis from causing, in clinic
It is widely used, and effect is notable.And by nasopharyngeal air duct, lasting high flow capacity oxygen is given, also there is certain effect.But
Current nasopharyngeal air duct has the following disadvantages in use：
(1) there is easily damage schneiderian membrane in installation course, make patient suffering be difficult to be resistant to obtain problem；
(2) cause schneiderian membrane bleeding in installation course, or even bleeding causes patient to choke to cough, or make stupor and anesthesia
Patient sucks respiratory tract by mistake, causes respiratory tract to suffocate and aspiration pneumonia；
(3) lasting high flow capacity oxygen is given by nasopharyngeal air duct, suspends or not enough patient in respiratory movement, improve lung
Ventilatory function effect it is not good.
The content of the invention
Based on this, in view of the above-mentioned problems, the present invention proposes that a kind of high gas flow flow velocity prevents the nasopharynx of nasal mucosa damage to ventilate
Road, can be prevented effectively from the damage to schneiderian membrane, it is to avoid schneiderian membrane bleeding causes the danger such as respiratory tract asphyxia and aspiration pneumonia
The occurrence of, and it is effectively increased the disperse of oxygen.
The technical scheme is that：A kind of high gas flow flow velocity prevents the nasopharyngeal air duct of nasal mucosa damage, including supervisor,
The supervisor includes tailpipe section, middle pipeline section and the head pipeline section being sequentially connected；The internal diameter of the head pipeline section and the equal edge of external diameter
The direction for air flow direction is gradually reduced, and the central axis of the outlet side end face and head pipeline section of head pipeline section.
The present invention to nasopharyngeal air duct head pipeline section by being improved, and the cross section perpendicular of its head pipeline section is in airway
Heart axle, makes the uniform interior receipts of nasopharyngeal air duct head end, the internal diameter of head pipeline section is tapered into, and is made in the outlet side of head pipeline section
Volume forms round and smooth end face, makes its crest truncation, can effectively prevent the sharp head end of traditional nasopharyngeal air duct to schneiderian membrane
Damage.The internal diameter of head pipeline section is tapered into, and the outlet side curls inward of head pipeline section makes the gas outlet diameter of head pipeline section enter one
Step diminishes, and according to Poiseuille's law, then the increase of head end air-flow velocity, can be effectively increased the disperse of oxygen.
As a further improvement on the present invention, the internal diameter of the head pipeline section outlet side is tailpipe section inlet end internal diameter
0.4 times -0.6 times.
According to Poiseuille's law, the ratio between the flow velocity of head pipeline section outlet side and tailpipe section inlet end flow velocity and the two internal diameter it
Ratio square is inversely proportional, by accurately controlling the ratio between internal diameter of head pipeline section outlet side and tailpipe section inlet end internal diameter, Jin Erjing
Really control head pipeline section outlet side flow velocity, is 1/2nd of tailpipe section inlet end internal diameter as worked as the internal diameter of head pipeline section outlet side
When, head pipeline section outlet side flow velocity is 4 times of tailpipe section inlet end flow velocity.
As a further improvement on the present invention, the external diameter of the head pipeline section outlet side is tailpipe section inlet end external diameter
0.55 times -0.75 times.
As a further improvement on the present invention, the middle pipeline section is curved, and the tangent line at the tailpipe section inlet end
With the tangent line at the head pipeline section outlet side into 10 ° of -20 ° of angles.
Middle pipeline section is designed to arc, and make tangent line at tailpipe section inlet end and the tangent line at the pipeline section outlet side of head into
10 ° of -20 ° of angles, comply with human body nasopharyngeal cavity path, facilitate nasopharynx airway to be inserted from nasopharyngeal cavity, convenient operation.
As a further improvement on the present invention, the internal-and external diameter of the internal-and external diameter of the tailpipe section and middle pipeline section is equal, and
The internal diameter of tailpipe section is 5mm-8.5mm.
As a further improvement on the present invention, the length of the head pipeline section be the tailpipe section and middle length of pipe section it
0.4 times -0.6 times of sum.
As a further improvement on the present invention, the length sum of the tailpipe section, middle pipeline section and head pipeline section is 15cm-
20cm。
As a further improvement on the present invention, the inlet end of the tailpipe section is in horn-like.
The inlet end of tailpipe section is designed as horn-like, it is to avoid whole nasopharyngeal air duct is slipped into human body nasopharyngeal cavity, is more pacified
Entirely.
As a further improvement on the present invention, the inlet end of the tailpipe section is provided with breathing machine connector.
Breathing machine connector is set in the inlet end of tailpipe section, facilitates external lung ventilator, it is easy to operate.
The beneficial effects of the invention are as follows：
(1) by being improved to nasopharyngeal air duct head end pipeline section, make its crest truncation, can effectively prevent traditional nasopharynx
While the sharp head end of airway is to the damage of schneiderian membrane, its gas outlet diameter is diminished, add oxygen gas flow rate, more added with
The increase oxygen of effect permeates into lung；
(2) cross section perpendicular of head pipeline section makes the uniform interior receipts of nasopharyngeal air duct head end, head pipeline section in airway central shaft
Internal diameter taper into, and the outlet side curls inward of head pipeline section is formed round and smooth end face, make its crest truncation, can be effective
Prevent damage of the sharp head end of traditional nasopharyngeal air duct to schneiderian membrane, it is to avoid schneiderian membrane bleeding causes respiratory tract to suffocate and inhale
The generation of the dangerous situations such as entering property pneumonia；
(3) internal diameter of head pipeline section is tapered into, and the outlet side curls inward of head pipeline section makes the gas outlet of head pipeline section straight
Footpath further diminishes, and according to Poiseuille's law, then the increase of head end air-flow velocity, can be effectively increased oxygen and permeate into lung；
(4) the ratio between internal diameter and tailpipe section inlet end internal diameter by accurately controlling head pipeline section outlet side, and then accurate control
Head pipeline section outlet side flow velocity processed, such as when the internal diameter of head pipeline section outlet side is 1/2nd of tailpipe section inlet end internal diameter,
Head pipeline section outlet side flow velocity is 4 times of tailpipe section inlet end flow velocity, by accurately controlling to increase air velocity, strengthens flow of air
Power, is effectively increased oxygen and permeates into lung, special for patient respiratory pause in action or the difficult emergency case of patient respiratory
Effectively.
Brief description of the drawings
Fig. 1 is the structural representation for the nasopharyngeal air duct that high gas flow flow velocity described in embodiment prevents nasal mucosa damage；
Description of reference numerals：
10 supervisors, 11 tailpipe sections, the inlet end of 11a tailpipe sections, 12 middle pipeline sections, 13 head pipeline sections, 13a heads pipeline section
Outlet side, 20 breathing machine connectors.
Embodiment
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
Embodiment：
As shown in figure 1, a kind of high gas flow flow velocity prevents the nasopharyngeal air duct of nasal mucosa damage, including supervisor 10, the master
Pipe 10 includes tailpipe section 11, middle pipeline section 12 and the head pipeline section 13 being sequentially connected；The internal diameter and external diameter of the head pipeline section 13
It is gradually reduced each along the direction of air flow direction, and the central shaft of the outlet side 13a of head pipeline section end face and head pipeline section 13
Vertically.
The present invention to nasopharyngeal air duct head pipeline section 13 by being improved, and the cross section perpendicular of its head pipeline section 13 is in ventilation
Road central shaft, makes the uniform interior receipts of nasopharyngeal air duct head end, the internal diameter of head pipeline section 13 is tapered into, and makes going out for head pipeline section
13a curls inwards in gas end form round and smooth end face, make its crest truncation, can effectively prevent the sharp head end pair of traditional nasopharyngeal air duct
The damage of schneiderian membrane.The internal diameter of head pipeline section 13 is tapered into, and the outlet side 13a curls inwards of head pipeline section make going out for head pipeline section
Gas port diameter further diminishes, and according to Poiseuille's law, then the increase of head end air-flow velocity, can be effectively increased the disperse of oxygen.
In another embodiment, the internal diameter of the head pipeline section outlet side 13a is tailpipe section inlet end 11a internal diameters
0.5 times, or 0.4 times or 0.6 times.
According to Poiseuille's law, the ratio between head pipeline section outlet side 13a air-flow velocity and tailpipe section inlet end 11a flow velocitys with
The ratio between the two internal diameter square is inversely proportional, by the internal diameter and tailpipe section inlet end 11a that accurately control head pipeline section outlet side 13a
The ratio between internal diameter, and then accurate control head pipeline section outlet side 13a air-flow velocity, such as work as head pipeline section outlet side 13a internal diameter
For tailpipe section inlet end 11a internal diameters 1/2nd when, head pipeline section outlet side 13a flow velocity is tailpipe section inlet end 11a streams
4 times of speed, by accurately controlling to increase air velocity, strengthen air flow power, are effectively increased oxygen and permeate into lung, for patient
Respiratory movement suspends or the difficult emergency case of patient respiratory is especially effective.
In another embodiment, the external diameter of the head pipeline section outlet side 13a is the three of tailpipe section inlet end 11a external diameters
/ bis-, or 0.55 times or 0.75 times.
In another embodiment, the middle pipeline section 12 is curved, and the tangent line at the tailpipe section inlet end 11a with
The angle r of tangent line formation at the head pipeline section outlet side 13a is into 15 °, or 10 ° or 20 ° of angles.
Middle pipeline section 12 designs camber, and makes at the tangent line and head pipeline section outlet side 13a at tailpipe section inlet end 11a
Tangent line formation angle r into 15 °, comply with human body nasopharyngeal cavity path, facilitate nasopharynx airway to be inserted from nasopharyngeal cavity, convenient behaviour
Make.
In another embodiment, the internal-and external diameter of the internal-and external diameter of the tailpipe section 11 and middle pipeline section 12 is equal, and tail
The internal diameter of pipeline section 11 is 5mm, or 6mm, 7mm, 7.5mm, 8mm or 8.5mm.The nose of different internal diameter formation different sizes
Airway is swallowed, suitable for various sizes of human body nasopharyngeal cavity.
In another embodiment, the length of the head pipeline section 13 be the tailpipe section 11 and the middle length of pipeline section 12 it
One of two people of sum, the i.e. length of head pipeline section 13 be 1/3rd of 10 length of whole supervisor, or 2/5ths or
3/5ths.
The external diameter of head pipeline section 13 is gradually reduced, and its length accounts for 1/3rd of 10 length of whole supervisor, complies with
Human body nasopharyngeal cavity path, facilitates nasopharynx airway to be inserted from nasopharyngeal cavity, convenient operation.
In another embodiment, the length sum of the tailpipe section 11, middle pipeline section 12 and head pipeline section 13 is 17cm,
Or 15cm or 20cm.
In another embodiment, the inlet end 11a of the tailpipe section is in horn-like.
The inlet end 11a of tailpipe section is designed as horn-like, it is to avoid whole nasopharyngeal air duct is slipped into human body nasopharyngeal cavity, more
Safety.
In another embodiment, the inlet end 11a of the tailpipe section is provided with breathing machine connector 20.
Breathing machine connector 20 is set in the inlet end of tailpipe section, facilitates external lung ventilator, it is easy to operate.
Embodiment described above only expresses the embodiment of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (9)
1. a kind of high gas flow flow velocity prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：Including supervisor, supervisor's bag
Include the tailpipe section being sequentially connected, middle pipeline section and head pipeline section；The internal diameter and external diameter of the head pipeline section are each along air flow direction
Direction be gradually reduced, and the central axis of outlet side end face and the head pipeline section of head pipeline section.
2. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The internal diameter of head pipeline section outlet side is 0.4 times -0.6 times of tailpipe section inlet end internal diameter.
3. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The external diameter of head pipeline section outlet side is 0.55 times -0.75 times of tailpipe section inlet end external diameter.
4. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
Middle pipeline section is curved, and the tangent line at the tangent line at the tailpipe section inlet end and the head pipeline section outlet side into 10 °-
20 ° of angles.
5. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The internal-and external diameter of the internal-and external diameter of tailpipe section and middle pipeline section is equal, and the internal diameter of tailpipe section is 5mm-8.5mm.
6. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The length of head pipeline section is 0.4 times -0.6 times of the tailpipe section and middle length of pipe section sum.
7. high gas flow flow velocity according to claim 6 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The length sum of tailpipe section, middle pipeline section and head pipeline section is 15cm-20cm.
8. high gas flow flow velocity according to claim 1 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The inlet end of tailpipe section is in horn-like.
9. high gas flow flow velocity according to claim 8 prevents the nasopharyngeal air duct of nasal mucosa damage, it is characterised in that：It is described
The inlet end of tailpipe section is provided with breathing machine connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506614.0A CN107158539B (en) | 2017-06-28 | 2017-06-28 | High airflow velocity nasopharyngeal airway capable of preventing nasal mucosa from being damaged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506614.0A CN107158539B (en) | 2017-06-28 | 2017-06-28 | High airflow velocity nasopharyngeal airway capable of preventing nasal mucosa from being damaged |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107158539A true CN107158539A (en) | 2017-09-15 |
| CN107158539B CN107158539B (en) | 2023-06-20 |
Family
ID=59827878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710506614.0A Active CN107158539B (en) | 2017-06-28 | 2017-06-28 | High airflow velocity nasopharyngeal airway capable of preventing nasal mucosa from being damaged |
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| US20010035185A1 (en) * | 2000-04-26 | 2001-11-01 | Christopher Kent L. | Method and apparatus for pharyngeal augmentation of ventilation |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107158539B (en) | 2023-06-20 |
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