CN110496285A - A kind of soft adjustable nasopharyngeal airway - Google Patents

A kind of soft adjustable nasopharyngeal airway Download PDF

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Publication number
CN110496285A
CN110496285A CN201910710955.9A CN201910710955A CN110496285A CN 110496285 A CN110496285 A CN 110496285A CN 201910710955 A CN201910710955 A CN 201910710955A CN 110496285 A CN110496285 A CN 110496285A
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CN
China
Prior art keywords
snorkel
conduit
fitting
close
adjustable
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Pending
Application number
CN201910710955.9A
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Chinese (zh)
Inventor
邹德伟
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MEIDISI MEDICAL PRODUCTS CO Ltd TIANJIN
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MEIDISI MEDICAL PRODUCTS CO Ltd TIANJIN
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Application filed by MEIDISI MEDICAL PRODUCTS CO Ltd TIANJIN filed Critical MEIDISI MEDICAL PRODUCTS CO Ltd TIANJIN
Priority to CN201910710955.9A priority Critical patent/CN110496285A/en
Publication of CN110496285A publication Critical patent/CN110496285A/en
Priority to PCT/CN2019/121476 priority patent/WO2021022725A1/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0461Nasoendotracheal tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875Connecting tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/75General characteristics of the apparatus with filters
    • A61M2205/7536General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/42Rate
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/43Composition of exhalation
    • A61M2230/432Composition of exhalation partial CO2 pressure (P-CO2)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2230/00Measuring parameters of the user
    • A61M2230/40Respiratory characteristics
    • A61M2230/43Composition of exhalation
    • A61M2230/435Composition of exhalation partial O2 pressure (P-O2)

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The present invention relates to a kind of soft adjustable nasopharyngeal airways, and by connecting hose, snorkel, adjustable positioning ring, gas source connector, rotary joint, fixing piece, monitoring conduit, pin end and filter composition, gas source connector can be directly connected to breathing apparatus and carry out urgent ventilation in structure;Rotary joint not only can be with flexible rotating direction, but also can be realized simultaneously oxygen therapy, suction sputum function;Rounding off compares snorkel material lower hardness with material hardness at the top of connecting hose, can effective protection nasal membrane it is injury-free;Adjustable positioning ring adjusts the position of fixed snorkel, effectively control insertion depth;Monitoring conduit can monitor the respiratory rate of patient, O2Concentration and CO2Concentration enhances safety;Filter can effectively filter the moisture in patient exhalation air, while guarantee CO2Gas passes through.The material of component, does not use metal material in structure.

Description

A kind of soft adjustable nasopharyngeal airway
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of soft adjustable nasopharyngeal airway, is as people Work airway pressure is applied to a kind of medical instrument of Emergency Assistance and assisted respiartion or surgery anesthesia.
Background technique
Nasopharyngeal airway is a kind of artificial airway of via intranasal application insertion pharyngeal cavity, its effect is exhaled in releasing or reduction of patient Road is inhaled to ventilate unsmooth or block.Nasopharyngeal airway is generally made of soft silica gel or plastic material, for the life for complying with human body nasopharyngeal cavity Structure is managed, planform is designed as arc-shaped tubulose, and hardness is moderate, length phase at a distance from human body nasal cavity to ccavum oropharygeum When.Nasopharyngeal airway port is angle, and when insertion can reduce the friction with nasal cavity tissue, conducive to nasal cavity is passed through.
Very big pass of the nasopharyngeal airway because of application value clinically, by medical personnel and medical device industry Note, but common nasopharyngeal airway structure and function is simple.In recent years, to meet the requirement of medical level continuous development, it is right The structure improvement of nasopharyngeal airway increasingly increases, and the structure in relation to nasopharyngeal airway is by following patent literature report:
1, Chinese invention patent, Patent No. CN201320727635.2 (authorized announcement date 20140507) disclose one Nasopharyngeal airway of the kind with monitoring conduit, by connector, bushing, snorkel, fixing piece, monitoring conduit and pin end composition.The hair Bright advantage: 1) independent monitoring conduit can monitor respiratory rate, the O of patient at any time2Concentration and CO2It is wet to increase schneiderian membrane for concentration Degree enhances safety.2) fixing piece is used for fixed surveillance conduit, makes it be not easy to slide, avoids too deep slotting patient's people nasal cavity, cause Damage.3) there is rotatable multifunction conjunction, patient can be cured by oxygen therapy simultaneously, the operation such as suction sputum, it is safe and efficient.
2, Chinese invention patent, Patent No. CN201520053161.7 (authorized announcement date 20150930) disclose one Kind nasopharyngeal airway road, including tube body, pipe fitting and three-way connection, inboard wall of tube body have wire loop, have on the inside of the both sides of tube body For the pipeline of suction sputum, the pipeline is connected to the position of the tube body outlet.It removes and can protect in the nasopharyngeal airway road of the invention Other than card nasopharyngeal meatus is unobstructed, Airway Care also can be effectively carried out, monitors gas concentration lwevel, makes treatment or monitoring process more It is convenient, safety, effectively;It can intervene in the early stage of expiratory dyspnea patient, can also be suitable for non-trachea cannula fiber crops Thoracic surgery under liquor-saturated.
3, Chinese invention patent, Patent No. CN201710813360.7 (data of publication of application 20171212) disclose one Kind nasopharynx Oxygen tube, including single nostril Oxygen tube, one end of single nostril Oxygen tube are inserted at its nasopharynx by patient nostril, separately One end is connected to oxygen source by connector, is inserted into end close to it on single nostril Oxygen tube and is provided with fixing piece, fixing piece is used for When insertion end is inserted at patient's nasopharynx, single nostril Oxygen tube is fixed at patient nostril, to prevent insertion end portion sliding It is dynamic.The present invention greatly increases patient and sucks oxygen by the way that the insertion end of single nostril Oxygen tube to be inserted at patient's nasopharynx The concentration of gas is more advantageous to the rehabilitation of patient, and by being provided with temperature sensing in the insertion end sides of single nostril Oxygen tube The nasopharyngeal temperature of patient can be monitored in real time in device, has reached the effect of detection patient temperature, alleviates the pain of patient, accelerates The rehabilitation course of patient.
4, Chinese invention patent, Patent No. CN109939320A (data of publication of application 20190628)
The embodiment of the invention discloses a kind of nasopharyngeal airway roads comprising gas cell gives anther sac and main body tube, the master Body pipe forms according to nasopharyngeal airways nature radian and is arc, and has for probeing into the proximal end of pars oralis pharyngis and being located at vestibulum nasi External distal end;Have in the main body tube from the venting cavity of proximal end is distally extended to, to be respectively formed distal end vent openings With distal end vent openings, the gas cell be set to the proximal end and have cylindrical space, the inner cavity of the gas cell with it is described Inflate lumen distal end charge valve connection, wherein the proximal end vent openings back to the axis in the venting cavity proximal end towards Tube body veutro tilts, to form proximal end vent openings guide end warping part.Nasopharyngeal airway road of the invention have structure it is simple, Easy to operate and low in cost feature, use easy to spread.
But above-mentioned 4 kinds of nasopharyngeal airways have following defects that (1) oxygen supply function and mechanical ventilation function can only be realized It is one such, it can not accomplish to be compatible with.(2) it can not achieve and exhale last CO2Filtering.CO is not can guarantee2The accuracy of concentration monitoring. (3) tube body material hardness is whole segmentation, is not well positioned to meet patient demand;The material is soft, easily causes difficult intubation and ventilation Deficiency, material is harder, easily causes the bleeding due to trauma of nasal membrane.4) snorkel head mitred sections are cusp design, and intubation is easy Cause the bleeding due to trauma of nasal membrane.5) snorkel insertion depth not can be effectively controlled, and easily causes patient uncomfortable or ventilates not Foot.(6) partial monopoly product includes metal material, does not support to pass through nuclear magnetic resonance check in art.
How to design to patient while curing by oxygen therapy, the operation such as suction sputum, it is safe and efficient, structure be simple and convenient to operate and The nasopharyngeal airway low in cost and easy to spread used, to overcome defect of the existing technology, become medical personnel and The very big concern of medical device industry is the project of medical device industry circle engineers and technicians urgently R and D.
Summary of the invention
The purpose of the present invention is to provide a kind of soft adjustable nasopharyngeal airways, and for structure by connecting hose, snorkel can Positioning ring, gas source connector, rotary joint, fixing piece, monitoring conduit, pin end and filter composition are adjusted, having in the structure can The connector of flexible rotating, can be realized simultaneously oxygen therapy, suction sputum and function for monitoring, and gas source connector can be directly connected to breathing apparatus progress Urgent ventilation, filter can effectively filter the moisture in patient exhalation air, while guarantee CO2Passing through for gas, it is soft to connect Head be designed to top rounding off, material hardness compare snorkel material lower hardness can effective protection nasal membrane not It is damaged, adjustable positioning ring adjusts the position of fixed snorkel, and effectively control insertion depth, required accessory does not use metal material Matter, to solve the above-mentioned problems of the prior art.
To achieve the above object, used technical solution is the present invention:
A kind of soft adjustable nasopharyngeal airway, including snorkel, diameter are 2.0mm~8.0mm, length be 20.0cm~ The monitoring conduit of 50.0cm, structure are designed as the fixing piece that two cyclic annular running-ons are connected as one and by bonding or the sides of close-fitting The pin end that formula and monitoring conduit are connected as one, it is characterised in that: the soft adjustable nasopharyngeal airway, structure are connect by soft Head, snorkel, adjustable positioning ring, gas source connector, rotary joint, fixing piece monitor conduit, pin end and filter composition, In:
Connecting hose, structure be designed as one end by be bonded or close-fitting or welding in a manner of connect with snorkel head, it is another End is designed as top segmentation structure of the rounding off with inclined opening structure, or forms integrated top rounding off band with snorkel The integral structure of inclined opening structure,
Snorkel, pipe structure shape be in arcuation or straight type, bore be 2.0mm~10.0mm, length be 8cm~ 25cm,
Adjustable positioning ring, structure are designed as cyclic annular sleeve mouth shape, and setting is in ventilation pipe outer wall, preferably through slide fit side Formula is connected with snorkel, slide it can in ventilation pipe outer wall, and then realize adjustable positioning function,
Gas source connector, one end by be bonded or close-fitting in a manner of connect with snorkel tail portion, the other end is with close-fitting or locking Mode and rotary joint and monitoring conduit connect,
Rotary joint, planform are designed as the two hollow columns connected in the form of certain angle, a company Connect oxygen cathete, a connection gas source connector, the corner dimension is 90 °~180 °, in a manner of close-fitting with gas source connector phase Lian Bingke realizes the rotation of different angle, and the connection type between gas source connector is preferably designed as being separated from each other formula, protects It demonstrate,proves urgent ventilation function and supplies oxygen function, the respiratory rate for monitoring patient, O2Concentration and CO2Concentration function switch freely,
Fixing piece, structure are designed as split type two cyclic annular running-on fixing pieces, and one end is to be bonded or the side of close-fitting Formula connect with monitoring conduit, the other end by be bonded or close-fitting in a manner of connect with rotary joint, the internal diameter of two ring-type running-on It is identical as the monitoring outer diameter of conduit,
Monitor that conduit, caliber are 2.0mm~8.0mm, length is 20.0cm~50.0cm, through rotary joint and Among snorkel, wherein rotary joint is connect by fixing piece with monitoring conduit, and a public access is equipped at the monitoring distal end of catheter Head, pin end are connected as one by way of bonding or close-fitting with monitoring conduit,
Pin end, setting are connected as at monitoring distal end of catheter, and by way of bonding or close-fitting with monitoring conduit One,
Filter is connected by way of locking with pin end.
The connecting hose, material are medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastic Body) or TPU (elastic polyurethane body rubber), 10 degree~45 degree of shore hardness.
The snorkel, material are medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastic Body) or TPU (elastic polyurethane body rubber), 50 degree~80 degree of shore hardness.
The adjustable positioning ring, material are hard medical macromolecular materials, such as hard silicon rubber or PC (poly- carbonic acid Ester) or PVC (polyvinyl chloride).
The fixing piece and monitoring conduit, material is medical macromolecular materials, and such as silicon rubber or PVC are (poly- Vinyl chloride) or TPU (elastic polyurethane body rubber).
The pin end, material are hard medical macromolecular materials, such as PC (polycarbonate) or PP (poly- third Alkene) or PVC (polyvinyl chloride).
Compared with prior art, the beneficial effects of the present invention are:
1) gas source connector in the present invention can be directly connected to breathing apparatus and carry out mechanical ventilation, realize promptly rescuing for patient It helps;Oxygen supply function can be realized after installation monitoring conduit and monitor the respiratory rate of patient, O2Concentration and CO2Concentration, enhancing peace Quan Xing;It avoids and is intubated again simultaneously, alleviate patient suffering, reduce the workload of medical worker perioperatively, be conducive to Improve the working efficiency of medical staff.
2) filter has excellent hydrophobic performance, can effectively filter moisture and CO in patient exhalation air2 Gas passes through, and is conducive to the accuracy for improving monitoring numerical value.
3) connecting hose head is soft and arc transition and body portion keeps higher hardness, and it is smooth to be conducive to snorkel Into, at the same avoid intubation when injured patient's nasal membrane.
4) adjustable positioning ring can adjust the position of fixed snorkel, effectively control insertion depth, avoid hypoventilation with And cause the discomfort of patient.
5) metal material is free of in product, supports to facilitate doctor to check disease in time by nuclear magnetic resonance check in art Situation condition is intubated without repeating, mitigates patient suffering.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of soft adjustable nasopharyngeal airway of the invention;
In Fig. 1: 1 connecting hose;2 snorkels;3 adjustable positioning rings;4 gas source connectors;5 rotary joints;6 fixing pieces;7 monitoring Conduit;8 pin ends;9 filters.
Specific embodiment
In order to provide a better understanding of the technical solution of the present invention by those skilled in the art, with reference to the accompanying drawing and embodiment The present invention is described in further detail.
Embodiment
A kind of soft adjustable nasopharyngeal airway, the soft adjustable nasopharyngeal airway, structure is by connecting hose 1, snorkel 2, adjustable positioning ring 3, gas source connector 4, rotary joint 5, fixing piece 6 monitors that conduit 7, pin end 8 and filter 9 form, In:
Connecting hose 1, structure be designed as one end by be bonded or close-fitting or welding in a manner of connect with 2 head of snorkel, separately One end is designed as top segmentation structure of the rounding off with inclined opening structure, or forms the round and smooth mistake in integrated top with snorkel 2 The integral structure with inclined opening structure is crossed, the structure of the present embodiment connecting hose 1 is designed as one end with bonding way and snorkel 2 Portion's connection, the other end are designed as top segmentation structure of the rounding off with inclined opening structure;
Snorkel 2, pipe structure shape be in arcuation or straight type, bore be 2.0mm~10.0mm, length be 8cm~ 25cm, the present embodiment shape be arc, bore 8mm, length 18cm,
Adjustable positioning ring 3, structure are designed as cyclic annular sleeve mouth shape, are arranged on 2 outer wall of snorkel, preferably through slide fit Mode is connected with snorkel 2, slide it can on 2 outer wall of snorkel, and then realizes adjustable positioning function,
Gas source connector 4, one end by be bonded or close-fitting in a manner of connect with 2 tail portion of snorkel, the other end is with close-fitting or lock Tight mode is connect with rotary joint 5 and monitoring conduit 7, the gas source connector 4 of the present embodiment, and one end is in a manner of close-fitting and logical 2 tail portion of tracheae is connected, and the other end is connect in a manner of close-fitting with rotary joint 5 and monitoring conduit 7,
Rotary joint 5, planform are designed as the two hollow columns connected in the form of certain angle, a company Oxygen cathete, a connection gas source connector 4 are connect, the corner dimension is 90 °~180 °, this implementation corner dimension is designed as 90 °, It is connected and can realize the rotation of different angle with gas source connector 4 in a manner of close-fitting, with the connection side between gas source connector 4 Formula is preferably designed as being separated from each other formula, guarantees urgent ventilation function and supplies oxygen function, the respiratory rate for monitoring patient, O2It is dense Degree and CO2Concentration function switch freely,
Fixing piece 6, structure are designed as the cyclic annular running-on fixing piece of split type two, and the internal diameter of two cyclic annular running-on is equal It is identical as the monitoring outer diameter of conduit 7, one end by be bonded or close-fitting in a manner of connect with conduit 7 is monitored, the other end to be bonded or The mode and rotary joint 5 of close-fitting, the fixing piece 6 of the present embodiment, one end are connect in a manner of being bonded with monitoring conduit 7, separately One end is connect in a manner of being bonded with rotary joint 5,
Monitor that conduit 7, caliber are 2.0mm~8.0mm, length is 20.0cm~50.0cm, and the monitoring of the present embodiment is led The diameter and length of pipe 7 separately design as 2.5mm and 30.0cm, through among rotary joint 5 and snorkel 2, wherein Rotary joint 5 is connect by fixing piece 6 with monitoring conduit 7, and 7 far-end of monitoring conduit is equipped with a pin end 8, pin end 8 It is connected as one by way of bonding or close-fitting with monitoring conduit 7, the pin end 8 of the present embodiment passes through bonding way and monitoring Conduit 7 is connected as one,
Pin end 8, setting are connect in monitoring 7 far-end of conduit, and by way of bonding or close-fitting with monitoring conduit 7 It being integrated, the pin end 8 of the present embodiment is connected as one by bonding way and monitoring conduit 7,
Filter 9 is connected by way of locking with pin end 8.
The connecting hose 1, material are medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastic Body) or TPU (elastic polyurethane body rubber), 10 degree~45 degree of shore hardness, the material of the present embodiment connecting hose 1 is silica gel, Shao 45 degree of family name's hardness.
The snorkel 2, material are medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastomehc Property body) or TPU (elastic polyurethane body rubber), 50 degree~80 degree of shore hardness.The snorkel 2 of the present embodiment, material are silicon Glue, 60 degree of shore hardness.
The adjustable positioning ring 3, material are hard medical macromolecular materials, such as hard silicon rubber or PC (poly- carbon Acid esters) or PVC (polyvinyl chloride), the material of the present embodiment is hard silicon rubber.
The fixing piece 6 and monitoring conduit 7, material is medical macromolecular materials, and such as silicon rubber or PVC are (poly- Vinyl chloride) or TPU (elastic polyurethane body rubber), the fixing piece 6 of the present embodiment and the material of monitoring conduit 7 are PVC (poly- Vinyl chloride).
The pin end 8, material are hard medical macromolecular materials, such as PC (polycarbonate) or PP (poly- third Alkene) or PVC (polyvinyl chloride).The material of the present embodiment pin end 8 is PC (polycarbonate)
The filter 9, is connect by way of locking with pin end 8.
Application method:
Soft adjustable nasopharyngeal airway intubation is carried out using correct clinical medicine technology, it is specific as follows: will to rotate Connector 5 is connect with Oxygen tube, adjustment rotary joint 5 to suitable direction, and fixed nasopharyngeal airway examines filter 9 and breathing Measurement equipment is connected, and when beginning to use, oxygen supply process is by monitoring that conduit 7 monitors respiratory rate, the O of patient at any time2Concentration and CO2 Concentration pays attention to observing sputum secretion situation in patient airway, by the timely suction sputum of correct method;If you need to implement urgent ventilation to patient Relief pulls out rotary joint 5 and monitoring conduit 7, gas source connector 4 is connect with breathing apparatus, carries out mechanical ventilation;After operation, It releases and fixes, pull out nasopharyngeal airway 2.
The foregoing describe basic principles and main features of the invention and advantages of the present invention, the technical staff of the industry is answered The understanding, the present invention is not limited to the above embodiments, and described in the above embodiment and specification is only of the invention preferred Example, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and It improves, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended power Sharp claim and its equivalent thereof.

Claims (6)

1. a kind of soft adjustable nasopharyngeal airway, including snorkel, diameter is 2.0mm~8.0mm, length be 20.0cm~ The monitoring conduit of 50.0cm, structure are designed as the fixing piece that two cyclic annular running-ons are connected as one and by bonding or the sides of close-fitting The pin end that formula and monitoring conduit are connected as one, it is characterised in that: the soft adjustable nasopharyngeal airway, structure are connect by soft Head (1), snorkel (2), adjustable positioning ring (3), gas source connector (4), rotary joint (5), fixing piece (6), monitoring conduit (7), Pin end (8) and filter (9) composition, in which:
Connecting hose (1), structure be designed as one end by be bonded or close-fitting or welding in a manner of connect with snorkel (2) head, separately One end is designed as top segmentation structure of the rounding off with inclined opening structure, or round and smooth with the top of snorkel (2) formation one The integral structure of intermediate zone inclined opening structure,
Snorkel (2), pipe structure shape be in arcuation or straight type, bore be 2.0mm~10.0mm, length be 8cm~ 25cm,
Adjustable positioning ring (3), structure are designed as cyclic annular sleeve mouth shape, are arranged on snorkel (2) outer wall, preferably through slide fit Mode is connected with snorkel (2), slide it can on snorkel (2) outer wall, and then realizes adjustable positioning function,
Gas source connector (4), one end by be bonded or close-fitting in a manner of connect with snorkel (2) tail portion, the other end is with close-fitting or lock Tight mode is connect with rotary joint (5) and monitoring conduit (7),
Rotary joint (5), planform are designed as the two hollow columns connected in the form of certain angle, a connection Oxygen cathete, a connection gas source connector (4), the corner dimension is 90 °~180 °, in a manner of close-fitting and gas source connector (4) it is connected and can realizes the rotation of different angle, with the connection type between gas source connector (4), is preferably designed as mutually Separate type guarantees urgent ventilation function and supplies oxygen function, the respiratory rate for monitoring patient, O2Concentration and CO2Concentration function switch is certainly Such as,
Fixing piece (6), structure are designed as split type two cyclic annular running-ons, one end by be bonded or close-fitting in a manner of and monitoring Conduit (7) connection, the other end by be bonded or close-fitting in a manner of connect with rotary joint (5),
It monitors conduit (7), caliber is 2.0mm~8.0mm, and length is 20.0cm~50.0cm, through rotary joint (5) Among snorkel (2), wherein rotary joint (5) is connect by fixing piece (6) with monitoring conduit (7), the monitoring conduit (7) Far-end is equipped with a pin end (8), and pin end (8) is connected as one by way of bonding or close-fitting with monitoring conduit (7),
Pin end (8), setting by way of bonding or close-fitting and monitor conduit (7) even in monitoring conduit (7) far-end One is connected in,
Filter (9) is connected by way of locking with pin end (8).
2. a kind of soft adjustable nasopharyngeal airway according to claim 1, it is characterised in that: the connecting hose (1), material For medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastomer (TPE)) or TPU (polyurethane elastomer rubber Glue), 10 degree~45 degree of shore hardness.
3. a kind of soft adjustable nasopharyngeal airway according to claim 1, it is characterised in that: the snorkel (2), material Matter is medical elastomer high molecular material, such as silicon rubber or TPE (thermoplastic elastomer (TPE)) or TPU (polyurethane elastomer rubber Glue), 50 degree~80 degree of shore hardness.
4. a kind of soft adjustable nasopharyngeal airway according to claim 1, it is characterised in that: the adjustable positioning ring (3), Material is hard medical macromolecular materials, such as hard silicon rubber or PC (polycarbonate) or PVC (polyvinyl chloride).
5. a kind of soft adjustable nasopharyngeal airway according to claim 1, it is characterised in that: the fixing piece (6) and prison Depending on conduit (7), material is medical macromolecular materials, such as silicon rubber or PVC (polyvinyl chloride) or TPU (polyurethane bullet Property body rubber).
6. a kind of soft adjustable nasopharyngeal airway according to claim 1, it is characterised in that: the pin end (8), material Matter is hard medical macromolecular materials, such as PC (polycarbonate) or PP (polypropylene) or PVC (polyvinyl chloride).
CN201910710955.9A 2019-08-02 2019-08-02 A kind of soft adjustable nasopharyngeal airway Pending CN110496285A (en)

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CN201910710955.9A CN110496285A (en) 2019-08-02 2019-08-02 A kind of soft adjustable nasopharyngeal airway
PCT/CN2019/121476 WO2021022725A1 (en) 2019-08-02 2019-11-28 Nasopharynx ventilating tube having adjustable soft head

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112121278A (en) * 2020-10-28 2020-12-25 东莞永昇医疗科技有限公司 Humidifying tank and respiratory therapy equipment
WO2021022725A1 (en) * 2019-08-02 2021-02-11 天津美迪斯医疗用品有限公司 Nasopharynx ventilating tube having adjustable soft head
US20220241532A1 (en) * 2019-08-06 2022-08-04 Chris Salvino Endotracheal tube assembly
US20230014924A1 (en) * 2019-08-06 2023-01-19 Chris Salvino Endotracheal tube relief valve

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