CN111790034A - Pharyngeal airway for preventing asphyxia - Google Patents
Pharyngeal airway for preventing asphyxia Download PDFInfo
- Publication number
- CN111790034A CN111790034A CN202010769179.2A CN202010769179A CN111790034A CN 111790034 A CN111790034 A CN 111790034A CN 202010769179 A CN202010769179 A CN 202010769179A CN 111790034 A CN111790034 A CN 111790034A
- Authority
- CN
- China
- Prior art keywords
- airway
- asphyxia
- pharyngeal
- tube
- air duct
- 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.)
- Pending
Links
- 206010003497 Asphyxia Diseases 0.000 title claims abstract description 30
- 210000003800 pharynx Anatomy 0.000 claims abstract description 17
- 210000003928 nasal cavity Anatomy 0.000 claims abstract description 16
- 208000037062 Polyps Diseases 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000741 silica gel Substances 0.000 claims abstract description 10
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 210000000492 nasalseptum Anatomy 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 4
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000002695 general anesthesia Methods 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000008733 trauma Effects 0.000 abstract description 3
- 210000001584 soft palate Anatomy 0.000 description 11
- 206010051943 Pharyngeal polyp Diseases 0.000 description 6
- 206010041235 Snoring Diseases 0.000 description 6
- 201000002859 sleep apnea Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 210000001989 nasopharynx Anatomy 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 206010002091 Anaesthesia Diseases 0.000 description 3
- 230000037005 anaesthesia Effects 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 208000008784 apnea Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 206010021079 Hypopnoea Diseases 0.000 description 1
- 206010021118 Hypotonia Diseases 0.000 description 1
- 206010049816 Muscle tightness Diseases 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 210000002409 epiglottis Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000036640 muscle relaxation Effects 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 210000002396 uvula Anatomy 0.000 description 1
Images
Classifications
-
- 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
- A61M16/0418—Special features for tracheal tubes not otherwise provided for with integrated means for changing the degree of curvature, e.g. for easy intubation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/821—Ostial stents
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
- A61M2025/0213—Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body
- A61M2025/0226—Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body specifically adapted for the nose
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Biophysics (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses an anti-asphyxia pharyngeal airway, which is made of flexible medical silica gel materials, wherein the outer diameter of the airway is smaller than the size of a human nasal cavity, the airway (1) is of a straight tube structure, and when the airway (1) extends into the pharyngeal portion from a human inferior nasal passage, the airway (1) is arranged in the pharyngeal portion and supports the polyp collapse part of the pharyngeal portion; the invention can be inserted into the pharynx from the nostril before the general anesthesia operation of a patient, even if the polyp of the pharynx collapses when the patient is operated, the smooth breathing can be kept due to the support of the airway, and the operation risk and the trauma of cutting the tube are avoided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anti-asphyxia pharyngeal airway.
Background
The upper respiratory tract of an adult is the pharyngeal cavity, with no bony tissue support on the anterior and lateral walls, which is held open by muscle tension on the walls of the pharyngeal cavity. Under the anesthesia condition, the patient can narrow the pharyngeal cavity to different degrees due to the muscle relaxation and the tongue tenesmus. If the pharyngeal cavity is significantly narrowed, a hypopnea condition may result during inspiration due to the rapid flow of air through the uvula, tongue root, and epiglottis. When the pharyngeal cavity wall muscle loses tension completely, pharyngeal polyp collapses, and the tongue falls back completely to form complete obstruction of the upper respiratory tract, namely apnea syndrome caused by collapse causes apnea and asphyxia, and the existing means is to intubate the pharyngeal part; however, after general anesthesia, polyp accumulation in the pharynx can lead to incomplete intubation work, and under the condition, only the trachea can be cut to ensure smooth breathing, so that the operation risk is increased, and meanwhile, the trauma and the economic burden on the body of the patient are further increased.
Disclosure of Invention
Therefore, the invention provides the anti-asphyxia pharyngeal airway which is simple in structure, low in cost and convenient to use, can effectively prevent patients from having apnea under the general anesthesia state, and avoids the operation risk and trauma of tube cutting.
The invention adopts the following technical scheme:
the utility model provides an anti-asphyxia pharynx air duct, its is formed by the preparation of medical silica gel material, the external diameter of air duct is less than people's nasal cavity size, the air duct is the straight tube structure, when the air duct stretches into pharynx by people's lower nasal passage, pharynx and support pharyngeal polyp position that sinks is arranged in to the air duct.
Preferably, a section of reinforcing rib protruding towards the center of the tube is further arranged on the inner side face of the air outlet close to the air guide tube.
Preferably, a plurality of annular and/or spiral reinforcing ribs perpendicular to the airflow direction are formed on the inner side tube wall of the air outlet of the air guide tube.
The distribution length of the reinforcing ribs on the inner side surface of the air duct is 4 cm-7 cm, and the reinforcing ribs protrude from the inner side surface of the air duct by 0.08 mm-0.25 mm; the wheel base of the reinforcing rib is 1 mm-3 mm, and the width of the reinforcing rib is 0.3 mm-0.8 mm.
Still further, an anti-falling fixing part is arranged on the outer side face close to the air inlet end of the air guide tube and used for fixing the air guide tube on the nasal septum of the nasal cavity.
The anti-disengaging fixing part is a U-shaped anti-disengaging hook, one side end part of the U-shaped anti-disengaging hook is fixed on the outer side surface of the air inlet end of the air guide tube, and the opening of the U-shaped anti-disengaging hook faces the air outlet end of the air guide tube.
The other side of the U-shaped anti-drop hook is obliquely arranged towards the air duct, an end plug is arranged at the end part of the other side of the U-shaped anti-drop hook, and the size of the opening of the U-shaped anti-drop hook is smaller than the size of the bottom of the U-shaped anti-drop hook.
The air duct, the reinforcing ribs, the anti-falling fixing part and the end plug are of an integral structure.
The side wall close to the air inlet end of the air duct is also provided with at least 2 air holes which are arranged at intervals, and the air holes are positioned in a direction which is 70-90 degrees from the anti-falling fixing part.
The technical scheme of the invention has the following advantages:
A. the invention relates to an anti-asphyxia pharyngeal airway, which is made of medical silica gel materials, when the anti-asphyxia pharyngeal airway is inserted into the nasal cavity lower nasal passage and the pharyngeal soft palate position of a person, the airway forms an arc shape consistent with the radian of the soft palate, the airway extends along the soft palate and supports the pharyngeal polyp collapse position, after the pharyngeal airway is inserted to a proper position, the airway helps to keep the airflow smooth when the pharyngeal polyp collapse support is carried out, and the operation risk and the wound of tube cutting are avoided.
B. The invention also arranges a plurality of raised annular or spiral reinforcing ribs on the inner side surface close to the air outlet of the air duct, so that the supporting strength of the air duct at the section is higher than that of other positions, thereby effectively preventing polyp in the pharynx from collapsing and extruding the nasopharynx air duct to reduce or close the nasopharynx air duct channel; the air duct can be inserted into the pharynx from the nostril before the general anesthesia operation of patient, even if the patient has the condition that pharyngeal polyp collapses when the operation, also can make the patient keep breathing unblocked all the time because of having one section strenghthened type air duct.
C. The U-shaped anti-drop hook is arranged on the outer side wall of the air inlet end of the air duct, the end plug is arranged at the end of the air duct, the air duct is aligned with one nostril and slowly inserted into the nostril when in use, when the tube body of the air duct is completely inserted into the nostril, the end of the air outlet of the air duct extends out of the soft palate at the rear part of the throat, the end plug on the U-shaped anti-drop hook is clamped in the other nostril, and the U-shaped anti-drop hook is hooked on the nasal septum, so that the function of positioning the air duct can be realized, and the air duct can be prevented from integrally sliding into the nasal cavity.
D. The anti-asphyxia pharyngeal airway disclosed by the invention can be used for preventing apnea syndrome, the device can be inserted into the pharyngeal portion from the nostril before a patient is subjected to total anesthesia operation, even if polyp in the pharyngeal portion collapses when the patient is subjected to the operation, the smooth breathing can be kept due to the support of the airway, and the operation risk and the wound of tube cutting are avoided; the invention can also be used for stopping snore, the air duct ensures that the breathing passage from the nostril to the soft palate behind the throat is kept smooth in the sleeping process, the occurrence of snore can be completely avoided, the soft air duct made of medical silica gel material is inserted into the nostril, the foreign body sensation is very slight and easy to accept, and the humidity in the nasal cavity and the pharyngeal cavity is not influenced.
E. The anti-asphyxia pharyngeal airway has the advantages of simple structure, low cost, convenient use and good effects of preventing apnea syndrome and stopping snore.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings which are needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained from the drawings without inventive labor to those skilled in the art.
FIG. 1 is a schematic view of the overall structure of a first anti-asphyxia pharyngeal conduit device according to the present invention (straight tube structure);
FIG. 2 is a schematic view of the cross-sectional structure A-A shown in FIG. 1;
FIG. 3 is an enlarged view of the ribs on the airway;
FIG. 4 is a schematic view of a second anti-asphyxia pharyngeal airway structure provided by the present invention; (straight tube construction)
FIG. 5 is a schematic view of a third anti-asphyxia pharyngeal airway structure provided by the present invention; (straight tube construction)
Fig. 6 is a schematic view (bending structure) of a fourth anti-asphyxia pharyngeal airway structure provided by the present invention.
The labels in the figure are as follows:
1-gas guide tube; 2-reinforcing ribs; 3-an anti-drop fixing part; 4-end plugs.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1 and 2, the invention provides an anti-asphyxia pharyngeal airway which is made of flexible medical silica gel materials, the outer diameter of the airway is smaller than the size of a human nasal cavity, the airway 1 is of a straight tube structure or a bent tube structure, and when the airway 1 extends into the pharyngeal from a human inferior nasal passage, the airway 1 is arranged in the pharyngeal and supports the polyp collapse part of the pharyngeal. The anti-asphyxia pharyngeal airway is made of flexible silica gel, when the anti-asphyxia pharyngeal airway is inserted into the nasal cavity lower nasal passage and the pharyngeal soft palate of a person, the flexible airway extends along the soft palate and supports the pharyngeal polyp collapse part, and after the anti-asphyxia pharyngeal airway is inserted to a proper position, the airway supports the soft palate polyp part, so that smooth air flow entering and exiting is favorably kept, and the operation risk and wound of tube cutting are avoided
Preferably, a section of reinforcing rib 2 which is convex towards the center of the tube is also formed at the inner side surface of the air outlet of the air guide tube 1, so that the supporting capability of polyp collapse parts at the pharyngeal portion is further enhanced, and the invention preferably forms a plurality of annular and/or spiral reinforcing ribs 2 which are perpendicular to the air flow direction on the tube wall at the inner side of the air outlet of the air guide tube 1, as shown in fig. 2. The part with the reinforcing ribs has larger thickness than other parts, the supporting deformability is strong, and the section of the air duct with the reinforcing ribs is arranged at the soft palate part, so that the air duct can be supported for a long time without deformation. The length of the section of the air guide pipe with the reinforcing ribs is 4 cm-7 cm, the length can be adjusted according to specific conditions, and the specific size is not limited. As shown in figure 3, the reinforcing ribs 2 protrude 0.08mm to 0.25mm from the inner side surface of the air duct 1, the distance between the shafts of the reinforcing ribs 2 is 1mm to 3mm, and the width of the reinforcing ribs is 0.3mm to 0.8 mm.
The invention also provides an anti-drop fixing part 3 arranged at the outer side surface of the air inlet end of the air duct, which is used for fixing the air duct 1 on the nasal septum of the nasal cavity. In the invention, the anti-drop fixing part 3 preferably adopts a U-shaped anti-drop hook, one side end part of the U-shaped anti-drop hook is fixed on the outer side surface of the air inlet end of the air guide tube 1, and the opening of the U-shaped anti-drop hook faces the air outlet end of the air guide tube 1. Further, as shown in fig. 4 and 5, the other side of the U-shaped escape prevention hook extends obliquely toward the air duct 1, and an end plug 14 is provided at the other side end of the U-shaped escape prevention hook, and the size of the opening of the U-shaped escape prevention hook is smaller than the size of the bottom of the U-shaped escape prevention hook.
When the nasal cavity plug-in type tracheal tube is used, the tracheal tube is aligned to one nostril and slowly inserted into the nostril, when the tube body of the tracheal tube is completely inserted into the nostril, the end part of the tracheal tube extends out of the soft palate at the rear part of the throat, the U-shaped anti-release hook is clamped in the other nostril, the end plug on the U-shaped anti-release hook is arranged in the nasal cavity, and the U-shaped anti-release hook is hung on the nasal septum, so that the tracheal tube can be positioned, and meanwhile, the whole tracheal tube can be prevented from sliding into the nasal cavity.
The air guide tube 1, the reinforcing rib 2, the anti-falling fixing part 3 and the end plug 4 are preferably of an integral structure and are made of medical silica gel materials through a die.
In order to further improve the air guiding capability of the air guiding tube, as shown in fig. 2, at least 2 air vents 11 (2 air vents are shown in the figure) are further arranged on the side wall close to the air inlet end of the air guiding tube 1 at intervals, the air vents 11 are positioned in the direction of 70-90 degrees, preferably 90 degrees, with the anti-falling fixing part 3, when the flexible air guiding tube is worn, the air vents 11 face the upper end face of the nasal cavity, the air vents 11 are communicated with the flexible conduit to realize the auxiliary air inlet function, the diameter of the air vents can be 1-2 mm, and the air vents can be arranged in the area with the length of 2-7 mm.
The outer contour size of the cross section of the air duct 1 is smaller than the inner diameter of the nasal cavity of a human body. The anti-asphyxia pharyngeal airway disclosed by the invention can be used for preventing apnea syndrome, can be inserted into the pharyngeal portion from the nostril before a patient is subjected to total anesthesia operation, and can keep the breathing of the patient smooth due to the supporting effect of the airway or the airway with the reinforcing ribs even if the patient is subjected to polyp collapse in the pharyngeal portion during the operation, so that the operation risk and the wound of tube cutting are avoided; certainly, the invention can also be used for stopping snore, in the sleeping process, the nasopharynx pipe ensures that the breathing passage from the nostril to the soft palate behind the throat is kept smooth, the occurrence of snore can be completely avoided, the nasopharynx air duct made of medical silica gel material with soft texture is inserted into the nostril, the foreign body sensation is very slight and easy to accept, and the humidity in the nasal cavity and the pharyngeal cavity is not influenced.
The anti-asphyxia pharynx brightening duct device has the advantages of simple structure, low cost, convenient use and good effects of preventing apnea syndrome and stopping snore.
Of course, the present invention is not limited to the straight tube structure shown in fig. 2, and may also adopt the bent tube structure shown in fig. 6, or adopt flexible silica gel gas-guide tubes with other shapes, which will not be described again.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (9)
1. The utility model provides an anti-asphyxia pharynx air duct, its is formed by the preparation of flexible medical silica gel material, the external diameter of air duct is less than people's nasal cavity size, a serial communication port, air duct (1) is the straight tube structure, when air duct (1) stretches into pharynx by people's lower nasal passage, pharynx and support the pharynx polyp position that sinks are arranged in to air duct (1).
2. An anti-asphyxia pharyngeal airway as claimed in claim 1, wherein a section of strengthening rib (2) protruding towards the center of the tube is provided near the inside of the outlet of the airway tube (1).
3. An anti-asphyxia pharyngeal airway as claimed in claim 2, characterised in that the airway tube (1) has a plurality of annular and/or helical ribs (2) formed on the inner wall of the outlet side of the airway tube perpendicular to the direction of the airflow.
4. The anti-asphyxia pharyngeal airway as claimed in claim 3, characterized in that, the distribution length of the strengthening rib (2) on the inner side of the airway tube (1) is 4 cm-7 cm, the strengthening rib (2) protrudes 0.08 mm-0.25 mm from the inner side of the airway tube (1); the wheel base of the reinforcing rib (2) is 1 mm-3 mm, and the width of the reinforcing rib is 0.3 mm-0.8 mm.
5. An anti-asphyxia pharyngeal airway according to any one of claims 1-4, characterised by an anti-drop fixing portion (3) provided on the lateral side near the inlet end of the airway tube (1) for fixing the airway tube (1) to the nasal septum.
6. An anti-asphyxia pharyngeal airway as claimed in claim 5, wherein the anti-drop fixing part (3) is a U-shaped anti-drop hook, one side end of the U-shaped anti-drop hook is fixed on the outer side of the air inlet end of the airway tube (1), and the opening of the U-shaped anti-drop hook faces the air outlet end of the airway tube (1).
7. An anti-asphyxia pharyngeal airway as claimed in claim 6, wherein the other side of the U-shaped anti-release hook is inclined towards the airway tube (1), and an end plug (4) is provided at the other side end of the U-shaped anti-release hook, and the size of the opening of the U-shaped anti-release hook is smaller than the size of the bottom of the U-shaped anti-release hook.
8. An anti-asphyxia pharyngeal airway as claimed in claim 7, characterised in that the airway tube (1), the strengthening ribs (2), the anti-drop off fixing portion (3) and the end plug (4) are of an integral construction.
9. An anti-asphyxia pharyngeal airway as claimed in claim 8, wherein the side wall near the inlet end of airway tube (1) is further provided with at least 2 spaced vent holes (11), the vent holes (11) are located at an angle of 70-90 ° to the anti-drop fixing portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769179.2A CN111790034A (en) | 2020-08-03 | 2020-08-03 | Pharyngeal airway for preventing asphyxia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769179.2A CN111790034A (en) | 2020-08-03 | 2020-08-03 | Pharyngeal airway for preventing asphyxia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111790034A true CN111790034A (en) | 2020-10-20 |
Family
ID=72828545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010769179.2A Pending CN111790034A (en) | 2020-08-03 | 2020-08-03 | Pharyngeal airway for preventing asphyxia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111790034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023219805A1 (en) * | 2022-05-13 | 2023-11-16 | Regents Of The University Of Michigan | Nasopharyngeal airway devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526286A (en) * | 1974-12-02 | 1978-09-27 | Lomholt V | Respiration catheter |
| CN204319315U (en) * | 2014-12-10 | 2015-05-13 | 黄建国 | A kind of liquid food feeding nasal feeding tube |
| CN207168631U (en) * | 2017-02-28 | 2018-04-03 | 威海柯西医疗科技有限公司 | A kind of nasal airflow snore stopper |
| CN209004954U (en) * | 2017-12-05 | 2019-06-21 | 上海市第五人民医院 | Nasopharyngeal air duct |
| CN215875846U (en) * | 2020-08-03 | 2022-02-22 | 安徽朔源医疗器械有限公司 | Pharyngeal airway for preventing asphyxia |
-
2020
- 2020-08-03 CN CN202010769179.2A patent/CN111790034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526286A (en) * | 1974-12-02 | 1978-09-27 | Lomholt V | Respiration catheter |
| CN204319315U (en) * | 2014-12-10 | 2015-05-13 | 黄建国 | A kind of liquid food feeding nasal feeding tube |
| CN207168631U (en) * | 2017-02-28 | 2018-04-03 | 威海柯西医疗科技有限公司 | A kind of nasal airflow snore stopper |
| CN209004954U (en) * | 2017-12-05 | 2019-06-21 | 上海市第五人民医院 | Nasopharyngeal air duct |
| CN215875846U (en) * | 2020-08-03 | 2022-02-22 | 安徽朔源医疗器械有限公司 | Pharyngeal airway for preventing asphyxia |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023219805A1 (en) * | 2022-05-13 | 2023-11-16 | Regents Of The University Of Michigan | Nasopharyngeal airway devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101227946B (en) | Apparatus for maintaining a surgical airway and method of the same | |
| US9707368B2 (en) | Breathing assistance apparatus | |
| ES2425864T3 (en) | Apparatus for resolving obstruction, resistance or instability of the upper respiratory tract | |
| US5697365A (en) | Endotracheal tube construction and method for intubating a patient | |
| EP1651158B1 (en) | Respiratory therapy system including a nasal cannula assembly | |
| US20110277772A1 (en) | airway device | |
| JP2008526394A (en) | Respirator with gas escape vent and method of manufacturing the mask | |
| EP1888157B1 (en) | Medico-surgical apparatus | |
| AU765265B2 (en) | An improved breathing assistance apparatus | |
| CN215875846U (en) | Pharyngeal airway for preventing asphyxia | |
| CN106512170A (en) | Comfortable-to-use irritation-reduction trachea cannula | |
| US9119928B2 (en) | Apparatus and method for maintaining a surgical airway | |
| US20220401681A1 (en) | Vents for patient interfaces | |
| CN111790034A (en) | Pharyngeal airway for preventing asphyxia | |
| WO2017172822A1 (en) | Oral medical apparatus | |
| CN215938660U (en) | Anti-suffocation pharyngeal conduit device and manufacturing mold thereof | |
| CN215741132U (en) | Anti-asphyxia pharyngeal conduit device | |
| US20110073113A1 (en) | Kink resistant endotrachael tube | |
| CN209848056U (en) | Nasopharynx breather pipe for anesthesia | |
| CN109009644A (en) | Nasopharynx bracket for snore relieving | |
| CN114887175A (en) | Oropharynx air breather from phlegm function is inhaled in area | |
| CN209500028U (en) | Nasopharynx bracket for snore relieving | |
| CN111803772A (en) | Anti-suffocation pharyngeal conduit device and manufacturing mold thereof | |
| CN111603647A (en) | Anti-asphyxia pharyngeal conduit device and application thereof | |
| CN210020718U (en) | Oropharynx air duct with sputum suction function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210723 Address after: 236500 shop 113, building 2a, Zhongnan Trade City, Dongcheng, Jieshou City, Fuyang City, Anhui Province Applicant after: Anhui Shuoyuan Medical Instrument Co.,Ltd. Address before: 236000 households 7, unit 2, building 2, Xiyuan Community, Xicheng office, Jieshou City, Fuyang City, Anhui Province Applicant before: Xu Fei |
|
| TA01 | Transfer of patent application right |