CN209734689U - Visual intubation type positive pressure mask and respiratory system - Google Patents
Visual intubation type positive pressure mask and respiratory system Download PDFInfo
- Publication number
- CN209734689U CN209734689U CN201820075991.3U CN201820075991U CN209734689U CN 209734689 U CN209734689 U CN 209734689U CN 201820075991 U CN201820075991 U CN 201820075991U CN 209734689 U CN209734689 U CN 209734689U
- Authority
- CN
- China
- Prior art keywords
- positive pressure
- visual
- intubation
- patient
- mask
- 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
Landscapes
- Endoscopes (AREA)
Abstract
The utility model relates to a visual intubation positive pressure mask and a breathing system, wherein a positive pressure vent is arranged on the surface of the positive pressure mask and is used for connecting a breathing machine, continuously providing positive pressure ventilation for a patient and assisting the patient to breathe; the visual laryngoscope inlet is used for inserting a visual laryngoscope, observing the specific situation of the throat of a patient, supporting the tongue root of the patient, relieving the airway obstruction, assisting the tracheal intubation and the like; the operation port can be used for tracheal catheter intubation operation and foreign body forceps operation such as oral cavity operation, airway foreign body extraction operation and the like. The utility model greatly improves the effective rate of the mask ventilation for patients with snore symptom, obesity, poor tracheal condition and incapability of tolerating airway problems such as apnea and the like, and strives for more time for difficult tracheal intubation; meanwhile, the problem that the breathing of the patient must be temporarily interrupted in the process of partial operation is solved, the safety of the patient is improved, and the operation sustainability of operators in partial operations is improved.
Description
Technical Field
the utility model relates to the field of medical equipment, in particular to visual intubation type positive pressure mask and respiratory.
Background
During the general anesthesia endotracheal intubation procedure, the patient needs to have mask-controlled positive pressure ventilation (during which the physician clasps the patient's nose and mouth with the mask, administers anesthetic while the patient breathes spontaneously or assisted with ventilation, and initiates intubation after the patient reaches the appropriate depth of anesthesia). However, clinically, patients with various airway problems such as reduction of the opening degree of the patient due to the fact that the tongue body is thick, neck movement is limited, airway stenosis and position change due to extrusion and traction of tumor masses and the like often encounter the situation that after anesthesia, auxiliary ventilation is difficult, and even positive pressure ventilation cannot be performed.
The difficult airway is a problem which is not completely solved in the field of anesthesia, and various trachea cannula equipment and instruments are known for the problem, but the improvement in the field of anesthesia masks is little. In clinical work, many patients with tongue hypertrophy and apnea syndrome are in a critical situation that the patient faces the tongue backward to block the airway once the patient enters an anesthesia state after anesthesia induction, so that mask ventilation is difficult to perform. In such a case, the subsequent intubation of the trachea may not be successful, which may lead to fatal accidents. A noninvasive positive pressure ventilation mask (CN204275229U) in the prior art discloses a noninvasive ventilation mask capable of performing bronchofiberscope interventional medical treatment and intubation and transbronchofiberscope tracheal intubation under the condition of continuous noninvasive mechanical ventilation and no air leakage. However, the technical purpose of the method is to realize nasal intubation, the nasal intubation is different from the oral tracheal intubation, the problems faced by the oral tracheal intubation are not considered, the problem of difficult ventilation caused by airway obstruction such as tongue tenesmus and airway stenosis cannot be solved, only a fiber bronchoscope operation mode is provided on a face mask, the visual field range is narrow, the observation angle is limited, and the problems that the airway is blocked by the tongue tenesmus and the view field is blocked by glottis due to the covering of epiglottis cannot be solved.
Disclosure of Invention
In order to better solve the technical problem, to the particularity of airway obstruction type patient difficulty of ventilating, provide safety guarantee as far as possible for the patient, the utility model discloses a novel functional face guard of feasible visible laryngoscope operation and supplementary endotracheal tube operation at the visible laryngoscope in malleation ventilation has, aim at: (1) solves the problem of difficult ventilation caused by tongue tenesmus, airway compression displacement and the like during positive pressure ventilation of the mask. (2) The problem that the patient has to pause the breathing of the patient in the operation process when the patient takes out the oral foreign body and the airway foreign body during the general anesthesia descending operation is solved, so that the safety of anesthesia and the sustainability of partial operation are improved, and the potential oxygen deficiency possibility of the patient is reduced. Specifically speaking, the utility model discloses a visual intubation type malleation face guard wherein is equipped with three through mouth on the surface of face guard, is article font and arranges, include:
the positive pressure vent is positioned in the center of the mask and is used for connecting a breathing machine gas transmission pipe (threaded pipe) so as to continuously provide positive pressure ventilation for the patient and assist the patient to breathe;
The visible laryngoscope inlet is positioned at the upper left of the mask and is used for inserting the visible laryngoscope, observing the specific situation of the throat of a patient, performing visible operation, supporting the tongue root of the patient and assisting the intubation operation of the tracheal catheter;
the operation port is positioned at the upper right of the mask, is arranged in parallel with the visible laryngoscope inlet and is used for inserting an endotracheal tube, can be used for endotracheal intubation operation by the endotracheal tube and can be used for operation inlets of foreign body forceps for oral cavity and airway foreign body extraction.
This visual intubation type positive pressure face guard, wherein this visual laryngoscope inlet port and this operation mouth all adopt multilayer elastic sealing structure, and this elastic sealing structure is sealed diaphragm valve or is equipped with open-ended seal valve.
This visual intubation type malleation face guard, wherein this visual laryngoscope inlet port includes scalable skin cavity structure, and this malleation face guard is connected to this flexible skin cavity structure's bottom, and the top is equipped with sealed membrane piece valve, and operating personnel can pass this valve with visual laryngoscope and carry out visual operation. The width of the telescopic leather cavity structure is reduced from the bottom end to the top end, and the middle part of the telescopic leather cavity structure is an elastic corrugated part.
This visual intubation type positive pressure face guard, wherein this visual laryngoscope includes: direct laryngoscopes, fibre laryngoscopes, electronic laryngoscopes and stroboscopic laryngoscopes.
The visual intubation type positive pressure mask is transparent, and a circle of inflatable cushion is arranged on the periphery of the bottom surface of the positive pressure mask.
The utility model also provides a visual intubation type malleation face guard, wherein be equipped with two through openings on the surface of malleation face guard 1, include:
The positive pressure vent is used for connecting a threaded pipe of a breathing machine so as to continuously provide positive pressure ventilation to assist the breathing of the patient;
and the operation port is used for inserting the tracheal catheter, the tracheal catheter passes through the operation port, and the tracheal catheter is placed into the airway of the patient through the glottis to provide respiratory support for the patient.
the utility model also discloses a respiratory of visual intubate formula malleation face guard, except including above-mentioned visual intubate formula malleation face guard, still include the breathing machine, visual laryngoscope, breathing machine gas-supply pipe, endotracheal tube and intubate gasbag structure, this breathing machine gas-supply pipe is used for carrying malleation gas, including providing oxygen or anesthetic gas, this endotracheal tube is used for providing oxygen, and this intubate gasbag structure is including attaching to inflatable gasbag and the gas tube of gas transmission intubate top outer wall, and this gas tube is used for providing gas for inflatable gasbag, and this inflatable gasbag is used for fixing a position this gas transmission intubate.
The utility model discloses a visual intubation type positive pressure face guard, its technical effect lies in: except all functions of a common mask, for patients who suffer from snore, tongue hypertrophy, poor tracheal condition and incapability of enduring apnea and the like, the mask can use a visual laryngoscope to operate and solve the problem of airway obstruction caused by tongue tenesmus and the like while in a positive pressure ventilation mode of the mask, and the visual laryngoscope is used for assisting in guiding the tracheal catheter in parallel, so that the ventilation efficiency of the mask can be greatly improved, more time is won for difficult intubation of the tracheal catheter, and the visual intubation type positive pressure mask can obviously reduce the damage of oral cavity and airway tissues by descending glottis exposure, endotracheal catheter intubation and other operations under visual conditions due to the adoption of a visual technology; secondly, the visual intubation type positive pressure mask can continuously assist positive pressure ventilation while performing visual intubation, eliminates an apnea time window in the tracheal intubation process, solves the problems of time urgency of rescue intubation and the like for patients who are difficult to ventilate after anesthesia, and provides possibility of continuous operation in a continuous breathing mode for patients who perform operation in oral cavity and air flue and cannot perform tracheal intubation to maintain breathing. The tracheal catheter can be directly inserted or inserted under the assistance of a fiberoptic bronchoscope. Meanwhile, the problem that the breathing of the patient is interrupted temporarily in the operation process when the patient takes out the general anesthesia downlink oral foreign body and airway foreign body is solved, the safety of the patient is improved, and the operation sustainability of the operator is improved.
Drawings
Fig. 1 is a schematic structural view of the mask of the present invention;
FIG. 2 is a top view of the sealing diaphragm valve of the present invention;
FIG. 3 is a side view of the collapsible bellows structure of the present invention;
FIG. 4 is a schematic view of the endotracheal tube and inflatable balloon of the present invention;
fig. 5 is a schematic view of the inflatable airbag according to the present invention after being inflated.
Description of the symbols:
1: a positive pressure mask; 2: an operation port; 3: a visible laryngoscope access port;
4: a positive pressure vent; 5: an inflatable cushion; 6: the top end of the dermal cavity structure;
7: an elastic film; 8: the bottom end of the dermal cavity structure; 9: an elastic corrugated portion.
10: a tracheal tube; 11: the inflatable bladder 12: inflation tube
Detailed Description
In order to make the aforementioned features and effects of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
referring to fig. 1, the positive pressure mask 1 of the present invention is made of transparent material, and three through holes are formed on the surface of the positive pressure mask 1, including a positive pressure ventilation port 4 at the center, a visible laryngoscope inlet port 3 at the upper left, and an operation port 2 at the upper right, wherein the diameter of the visible laryngoscope inlet port 3 is greater than that of the operation port 2.
The positive pressure vent 4 is used for connecting a gas pipe (threaded pipe) of the respirator and provides continuous positive pressure auxiliary ventilation by the respirator;
The visual laryngoscope inlet 3 is used for inserting the visual laryngoscope, observing the specific situation of the throat of a patient, accurately supporting the tongue root of the patient, removing the reasons of airway obstruction such as tongue tenesmus and the like, and properly exposing the glottis to ensure the smooth completion of the tracheal catheter intubation, and the visual laryngoscope comprises a direct laryngoscope, a fiber laryngoscope, an electronic laryngoscope, a stroboscopic laryngoscope and the like;
The operation opening 2 is used for inserting a tracheal catheter, the tracheal catheter passes through the operation opening 2, and a specially-made endotracheal catheter is placed into a trachea along the oral cavity through a glottis to provide ventilation and oxygen supply for a patient. It should be noted that during intubation of the endotracheal tube with the aid of the visual laryngoscope, the ventilator provides continuous positive pressure ventilation to the patient.
In order to ensure that the visual intubation type positive pressure mask 1 can carry out endotracheal intubation operation on a patient without air leakage while continuously carrying out positive pressure ventilation, the visual laryngoscope inlet port 3 and the operation port 2 both adopt elastic sealing structures, namely, when the visual laryngoscope passes through the visual laryngoscope inlet port 3, the visual laryngoscope inlet port 3 can not leak air, when the endotracheal intubation passes through the operation port 2, the operation port 2 can not leak air, and the elastic sealing structures comprise sealing membrane valves, sealing valves with openings and the like.
referring to fig. 3, in order to increase the operating space and the operating flexibility of the laryngoscope, in another embodiment, the inlet port 3 of the laryngoscope comprises a telescopic skin cavity structure, the bottom end 8 of the skin cavity structure is connected with the positive pressure mask 1, the top end 6 of the skin cavity structure is provided with a sealing membrane valve, and after the laryngoscope passes through the sealing membrane valve, an operator can adjust the depth and the angle of the laryngoscope in the oropharyngeal cavity within the elastic supporting range of the elastic skin cavity according to actual requirements. The width of this flexible skin cavity structure diminishes from 8 to 6 direction shrink on top of bottom also can be from 8 to 6 direction sizes on top of bottom unchangeable, if unchangeable this flexible skin cavity structure can invade the space that occupies in the face guard of a small part, but the diameter of the sealed diaphragm valve in top 6 can be great, makes things convenient for the passing through of visual laryngoscope, if diminish then can not occupy the space in the face guard, but the diameter of the sealed diaphragm valve in corresponding top 6 just also can correspondingly diminish. The middle part of the telescopic leather cavity structure is an elastic corrugated part 9. As shown in fig. 2, the sealing diaphragm valve is formed by alternately stacking semicircular elastic membranes 7, the structure can refer to a laparoscopic throttle (chocker), the structure and the working principle are similar to those of a camera shutter structure, in the embodiment, 4 semicircular elastic membranes 7 are taken as an example, the middle point of the diameter of each semicircular elastic membrane 7 is taken as the center of a circle, and a complete circle can be formed after rotating for 4 times and rotating for 90 degrees each time, and the complete circle is overlapped for 90 degrees, so that the efficient and reliable sealing effect is realized.
And the bottom surface of this malleation face guard 1 is provided with the round and aerifys cushion 5, and the purpose has better laminating nature with patient's face for the face guard is sealed difficult gas leakage with the face coincide, makes the elastic seal structure that preset malleation value reaches this visual laryngoscope inlet port 3 and this operation mouth 2 more easily be the multilayer, also is used for making preset malleation value reach more easily equally.
The utility model also provides a visual intubation type malleation face guard, wherein be equipped with two through openings on the surface of malleation face guard 1, include: the positive pressure air vent is used for connecting a gas pipe of a respirator so as to continuously provide positive pressure ventilation and assist the respiration of a patient; and the operation port is used for inserting the tracheal catheter, the tracheal catheter passes through the operation port, and the tracheal catheter is placed into the airway of the patient through the glottis to provide respiratory support for the patient.
The utility model also discloses a respiratory of visual intubation type malleation face guard, except including above-mentioned visual intubation type malleation face guard, still include instruments such as breathing machine, visual laryngoscope, still include breathing machine gas-supply pipe, endotracheal tube 10 and intubate gasbag structure (see fig. 4, fig. 5). One end of the air pipe of the respirator is connected with the respirator, and the other end of the air pipe of the respirator is connected with the air vent of the positive pressure mask and is used for conveying positive pressure gas (oxygen or conveying anesthetic gas). The endotracheal tube 10 has one end connected to a ventilator and the other end inserted into the throat for supplying oxygen (arrow direction in fig. 4). The intubation balloon structure includes an inflatable balloon 11 and an inflation tube 12 attached to the outer wall of the distal end of the endotracheal tube, the inflatable balloon 11 and the inflation tube 12 being physically isolated from each other. The inflation tube 12 is connected with the respirator, when the intubation operation is performed, no gas exists in the inflatable air bag 11 and tightly wraps the wall of the gas intubation tube, after the insertion operation is completed, the inflatable air bag 11 provides gas (oxygen can be provided, see the arrow direction in fig. 5) through the inflation tube 12, and then an inflatable air bag is formed at the top end of the tracheal tube of the respirator and is used for positioning the gas infusion intubation tube to prevent the intubation tube from shifting or slipping out of the throat after the intubation tube is successfully inserted.
In the specific implementation process, the use method of the visual intubation-type positive pressure mask 1 comprises the following steps:
Step 1, wearing a visual intubation type positive pressure mask 1 on the face of a patient, and providing continuous positive pressure ventilation for the patient through a positive pressure ventilation port 4;
And 2, if the patient is difficult to ventilate, immediately using a visual laryngoscope to pass through the visual intubation type positive pressure mask 1 through the visual laryngoscope inlet 3 to enter the oral cavity of the patient, and performing visual operation to lift the tongue root and expose the glottis, so that the problem of obstruction of the airway of the patient is solved, and the patient continuously provides respiratory support. When the intubation condition of the patient is met, the tracheal catheter is used to penetrate through the visual intubation type positive pressure mask 1 through the operation port 2, and the tracheal catheter is placed in the airway of the patient under the auxiliary guidance of a visual laryngoscope to realize the positive pressure ventilation of the tracheal catheter, so that the respiration of the patient is maintained.
in the face of patients without suspected ventilation difficulties (e.g., obesity, upper airway obstruction, etc.), there is no need to use a visual laryngoscope, and therefore another embodiment of the present invention provides a dual-through visible cannula-type positive pressure mask 1 with only two ports on the surface of the positive pressure mask 1, comprising: the positive pressure air vent 4 is used for being connected with a breathing machine, continuously providing positive pressure ventilation for a patient and assisting the patient to breathe; and the operation port 2 is used for inserting a tracheal catheter, the tracheal catheter passes through the operation port 2, and the tracheal catheter is placed into the airway of the patient through a glottis to provide ventilation and oxygen supply for the patient. In practice, the operation port 2 can also be used as a visual laryngoscope inlet port 3.
Step 3, if the patient does not have the problem of airway obstruction after general anesthesia, the visual intubation type positive pressure mask 1 can be removed when the patient intubation conditions are met, and the visual laryngoscope can be used for assisting the endotracheal intubation operation directly; or when treating that patient's intubate condition possesses, when keeping using 1 line of malleation of this visual intubate formula malleation face guard to ventilate, use visual laryngoscope to pass this visual intubate formula malleation face guard 1 entering patient's oral cavity through this visual laryngoscope inlet port 3, after going visual operation and exposing the glottis, use endotracheal tube to pass this visual intubate formula malleation face guard 1 through this operation mouth 2, put into parallel endotracheal tube malleation in patient's air flue under the supplementary direction of visual laryngoscope, maintain patient's breathing.
The visual intubation-type positive pressure mask 1 can meet all functions of the positive pressure mask 1; and can also be used for the suspicious difficult (such as obesity, upper airway obstruction etc.) patient of ventilating, the visual laryngoscope can pass this visual intubation type positive pressure face guard 1 through this visual laryngoscope inlet port 3, accurately holds up the patient's tongue root, keeps effective manual control or mechanical ventilation, and the patient is when this visual intubation type positive pressure face guard 1 positive pressure ventilation promptly, visual endotracheal tube intubate.
and 4, inflating the inflatable air bag 11 in the air bag structure of the intubation tube after the endotracheal tube intubation is finished. Since there is no gas in the inflatable balloon 11 during the intubation operation, it tightly covers the wall of the gas intubation tube. After the intubation operation is completed, the inflatable balloon 11 is supplied with gas (which may be oxygen) through the inflation tube, and an inflatable balloon is formed at the tip of the endotracheal tube of the ventilator for positioning the endotracheal tube to prevent the tube from shifting or slipping out of the throat after successful intubation.
and 5, performing normal operation and the like.
Although the present invention has been described in terms of the above embodiments, the detailed description is only for the purpose of explanation, and is not intended to limit the present invention, and those skilled in the art can make modifications and improvements without departing from the spirit and scope of the present invention, so that the scope of the present invention is defined by the appended claims.
Claims (10)
1. The utility model provides a visual intubation type positive pressure face guard which characterized in that, the surface of positive pressure face guard is equipped with three through-hole, includes: the positive pressure vent hole positioned in the center of the positive pressure mask is connected with a breathing machine gas pipe; a visual laryngoscope inlet positioned at the upper left of the positive pressure mask and inserted with a visual laryngoscope; an operation opening positioned at the upper right of the positive pressure mask, an operation opening for inserting a trachea catheter and an operation opening for oral cavity and airway foreign body extraction by using a foreign body forceps.
2. The visual intubating positive pressure mask of claim 1, wherein both the visual laryngoscope access port and the endotracheal tube procedure port employ resilient sealing means, which are either sealing diaphragm valves or sealing valves provided with an opening.
3. the visual intubation-type positive pressure mask according to claim 1, wherein the visual laryngoscope access port comprises a flexible skin cavity structure, the bottom end of the flexible skin cavity structure is connected to the positive pressure mask, and the top end is provided with a sealing membrane valve.
4. A visual cannula-type positive pressure mask according to claim 2 or claim 3, wherein the sealing diaphragm valve is formed by a cross-stacked semicircular elastic membrane.
5. A visual cannula type positive pressure mask as in claim 1, wherein the positive pressure mask is transparent and the periphery of the bottom surface of the positive pressure mask is provided with an inflatable cushion.
6. The visual intubation-type positive pressure mask according to claim 2, wherein the elastic sealing structure of the visual laryngoscope access port and the endotracheal tube intubation port is multi-layered.
7. a visual cannula-type positive pressure mask as in claim 3, wherein the bellows-type chamber is annular in configuration and has a resilient bellows portion in the middle.
8. The visual cannula-type positive pressure mask of claim 7, wherein the width of the bellows structure decreases from the bottom end to the top end.
9. The utility model provides a visual intubation type positive pressure face guard which characterized in that, the surface of positive pressure face guard is equipped with two through openings, includes: the positive pressure vent is connected with a breathing machine; and an operation opening into which the endotracheal tube is inserted, the endotracheal tube passing through the operation opening.
10. A respiratory system comprising the visual intubation-type positive pressure mask of claims 1-9, further comprising a ventilator, a visual laryngoscope, a ventilator gas line, an endotracheal tube and an intubation balloon structure, wherein the ventilator gas line delivers positive pressure gas including providing oxygen or anesthetic gas, the endotracheal tube provides oxygen, the intubation balloon structure comprises an inflatable balloon attached to the outer wall of the top end of the intubation tube and an inflation tube, the inflation tube provides gas to the inflatable balloon, and the inflatable balloon positions the intubation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075991.3U CN209734689U (en) | 2018-01-17 | 2018-01-17 | Visual intubation type positive pressure mask and respiratory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820075991.3U CN209734689U (en) | 2018-01-17 | 2018-01-17 | Visual intubation type positive pressure mask and respiratory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209734689U true CN209734689U (en) | 2019-12-06 |
Family
ID=68699651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820075991.3U Expired - Fee Related CN209734689U (en) | 2018-01-17 | 2018-01-17 | Visual intubation type positive pressure mask and respiratory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209734689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452411A (en) * | 2018-01-17 | 2018-08-28 | 中国人民解放军总医院第附属医院 | Visual intubatton type positive pressure mask and respiratory system |
| CN113509283A (en) * | 2021-04-20 | 2021-10-19 | 重庆医科大学附属口腔医院 | Protective structure for oral clinical medicine |
-
2018
- 2018-01-17 CN CN201820075991.3U patent/CN209734689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108452411A (en) * | 2018-01-17 | 2018-08-28 | 中国人民解放军总医院第附属医院 | Visual intubatton type positive pressure mask and respiratory system |
| CN113509283A (en) * | 2021-04-20 | 2021-10-19 | 重庆医科大学附属口腔医院 | Protective structure for oral clinical medicine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6626169B2 (en) | Anatomical airway ventilation intubating and resuscitation device | |
| US4231365A (en) | Emergency resuscitation apparatus | |
| AU691299B2 (en) | A fibreoptic intubating laryngeal mask airway | |
| JP3782123B2 (en) | Pharyngeal airway | |
| KR960005147B1 (en) | Artificial airway device | |
| US5499625A (en) | Esophageal-tracheal double lumen airway | |
| EP0596517B1 (en) | Emergency resuscitation apparatus | |
| CN104994899A (en) | Reversible airway device and related method for ventilating a subject | |
| US20050139220A1 (en) | Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube | |
| US20080053449A1 (en) | Respiratory Mask for Use in Endoscopy Procedures | |
| NZ232989A (en) | Airway device with drainage tube: mask seals laryngeal inlet | |
| CN207520428U (en) | Laryngeal mask and assisted respirator | |
| WO2020228085A1 (en) | Novel laryngeal mask airway device | |
| WO2015078204A1 (en) | Safe three-channel laryngeal mask | |
| CN109481805A (en) | A kind of intranasal laryngeal airway conduit | |
| CN209734689U (en) | Visual intubation type positive pressure mask and respiratory system | |
| CN111526912B (en) | Tracheal tube facilitator with excellent ventilation capability and system for accurate placement of intrabronchial catheter in desired bronchi | |
| CN108452411A (en) | Visual intubatton type positive pressure mask and respiratory system | |
| JPH10179745A (en) | Intra-esophagus airway for emergency resuscitation | |
| CN106880897A (en) | A kind of anesthetic tube | |
| US20200030557A1 (en) | Medical tubes for selective mechanical ventilation of the lungs | |
| WO2020118374A1 (en) | A device for maintaining an airway in a patient | |
| JP2015073678A (en) | Tracheal intubation tube | |
| Sinha et al. | Supraglottic airway devices other than laryngeal mask airway and its prototypes | |
| GB2446577A (en) | Airway access valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |