CN217526011U - Severe medical science branch of academic or vocational study is breathed and is supported with unobstructed device - Google Patents

Abstract

The utility model relates to a severe medical science branch of academic or vocational study is breathed and is supported and use unobstructed device, a serial communication port, including the intubate that is used for clearing up patient's respiratory track foreign matter and the neck shaft angle appearance that is used for placing the intubate and adjusting patient position and becomes the nose and smell the position, intubate radial axis surface is equipped with the air cushion that is used for expanding the narrow and small respiratory track of patient, the intubate is including being used for connecting the air cushion and cleaning the outer body of fluid foreign matter and being used for cleaning the inner tube of bold foreign matter. Medical staff makes its respiratory track flare-out through the angle of control head neck axle angle appearance behind the patient neck to the adjustment patient position accords with "the nose smells the position". The working mode of layering inside and outside the intubation tube accelerates the dredging efficiency of cleaning foreign matters in the respiratory tract of a patient and can prevent the intubation tube from being blocked by large foreign matters.

Description

Severe medical science branch of academic or vocational study is breathed and is supported with unobstructed device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a severe medical science branch of academic or vocational study is breathed and is supported with unobstructed device.

Background

In the critical care medical science, most of the critical patients are unconscious and unable to breathe spontaneously, and the most common medical means is to perform respiratory management and respiratory support on acute respiratory insufficiency and other various critical patients. Many critically ill patients are often associated with respiratory sputum or blood clot blockage. The foreign bodies of the trachea and the bronchus are one of the common causes of sudden airway obstruction, and severe patients can have symptoms of sudden spastic choking cough, paroxysmal cough, hoarseness, shortness of breath, expectoration and the like, and even serious symptoms can cause mucosal edema, narrow tube cavity, incapability of discharging gas in alveolus, secondary emphysema and the like, so that the progress of respiratory support treatment means is influenced, and the life health of the severe patients is harmed. Most existing ventilators must operate effectively with a clear airway.

In the related art, as proposed in patent document No. CN215275253U, there is a bronchoscope intubation assistance device for nursing in respiratory department, and the background art thereof is that: when the bronchoscope is inserted into the tube of the patient, the head of the patient needs to be fixed by hands of medical staff, the working strength of the medical staff is increased, the patient is easy to shake due to long-time support, arm numbness easily occurs, the bronchoscope is not convenient to insert the tube, and the bronchoscope auxiliary device with the head fixing function is especially important.

A trachea cannula art in device of eliminating phlegm that disinfects that patent document like publication number CN212090353U proposed among the prior art, including trachea cannula and device of eliminating phlegm that disinfects, be provided with the district of eliminating phlegm that disinfects on trachea cannula's the front portion, the device of eliminating phlegm that disinfects includes a hose, antiseptic solution input pump and waste liquid output pump, the hose is including advancing antiseptic solution end, go out waste liquid end and play liquid hole pipe, a plurality of play liquid hole has been seted up on the play liquid hole pipe, transversely be provided with a diaphragm in the liquid hole pipe, the play waste liquid end of play liquid hole pipe forms a way pipe circle after to preceding winding in proper order on the tub outer wall in the district of eliminating phlegm that disinfects. The utility model discloses a whole phlegm eliminating disinfection of phlegm eliminating device that disinfects in trachea cannula art all goes on at patient's throat, can effectively clear away the sputum outside the trachea cannula, need not to extract trachea cannula, makes the outer phlegm eliminating of trachea cannula easier and thorough, and the sputum that washes outside the trachea cannula that can also be convenient in addition prevents to take place breathing machine correlation pneumonia. The tube drawing success rate is increased, the hospitalization days are reduced, and the medical expense is saved.

Chinese patent CN211050401U discloses a severe medical respiratory support airway obstruction device, which comprises a main body, a shell, a rubber tube collecting device, a medical rubber tube, an anti-biting device, an air bag and a waste liquid bottle. The shell is arranged on the main body, the rubber tube collecting device is arranged on the main body, the medical rubber tube is arranged on the shell, the anti-biting device is arranged on the medical rubber tube in a sliding mode, the air bag is arranged on the lower side of the main body, the waste liquid bottle is arranged on the lower side of the main body, a collector is arranged on the lower side of the main body, and the air bag and the waste liquid bottle are both arranged on the collector; this patent provides one kind can accomodate the pipe of the unobstructed device of air flue after using up, makes patient be difficult for receiving lung's infection because of the dust, can protect patient's life safety to a certain extent, also is favorable to the doctor to carry the unobstructed device of air flue simultaneously, and severe medical science that can save space breathes and supports the unobstructed device of air flue. However, the patent also has the following disadvantages:

1. the device is used by maintaining the patient's airway patent, i.e., straightening the patient's airway. The medical staff needs to put one hand on the neck of the patient to hold the neck up and hold the head of the patient with the other hand to slightly lean the head back. The device is inconvenient to use and needs to be matched with a plurality of medical staff.

2. The foreign bodies sucked out of the respiratory tract of the patient can block the pipeline, and the working efficiency of the device can be affected.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the technical scheme of the utility model a severe medical science branch of academic or vocational study is breathed and is supported with unobstructed device is provided, including the intubate that is used for clearing up patient's respiratory track foreign matter and the neck shaft angle appearance that is used for placing the intubate and adjusting patient position formation nose and smells the position, intubate radial axis surface is equipped with the air cushion that is used for expanding the narrow and small respiratory track of patient, the intubate is including being used for connecting the air cushion and cleaning the outer body of fluid foreign matter and being used for cleaning the inner tube of bold foreign matter. The air cushion can slowly expand to support the respiratory tract of a patient after being inflated, so that when the patient carries out intubation to clean the foreign body of the respiratory tract, the intubation 1 is more convenient and soft in the insertion process, and the harm to the respiratory tract of the patient is reduced.

According to a preferred embodiment, the end of the air cushion far away from the intubation tube and extending into the respiratory tract of the patient is fixedly connected with a pressurizing pipe along the intubation tube, and the end of the pressurizing pipe far away from the air cushion is connected with an air pressure valve. The air flow entering the air cushion is controlled by the air pressure valve, so that the expansion of the air cushion conforms to different respiratory tract sizes of corresponding patients.

According to a preferred embodiment, the diameter of the outer tube is larger than that of the inner tube, an annular cavity for cleaning fluid foreign matters is arranged between the outer tube and the inner tube, and a cylindrical cavity for cleaning large foreign matters is arranged in the middle of the axis of the inner tube. The working mode of internal and external layering accelerates the dredging efficiency of cleaning foreign matters in the respiratory tract of a patient.

According to a preferred embodiment, one end of the annular cavity between the outer tube and the inner tube, which is to be inserted into the respiratory tract of the patient, is provided with a mesh port for annularly and circumferentially covering the annular cavity and sucking fluid foreign matters, and the mesh port extends from the outer tube in the radial direction of the cannula and inclines towards the inside of the cannula until reaching the outer edge of the inner tube. The fishing net-shaped net port prevents large foreign matters from entering the annular outer pipe body, so that the outer pipe body cannot block a passage of the outer pipe body due to the entering of the large foreign matters.

In accordance with a preferred embodiment, the craniocerebral axis goniometer includes a placement portion for placing the neck of a patient and a storage portion for storing the body member of the patency device for respiratory support.

According to a preferred embodiment, the placing part comprises a neck protecting part for protecting and holding the neck bending part of a patient when the patient lies down and a body position adjusting part for adjusting the head position of the patient, the neck protecting part is arc-shaped and is arranged below the body position adjusting part, the body position adjusting part comprises an adjusting plate for placing the head and an adjusting rod for fixing the corresponding head placing angle of the patient, the adjusting plate is a hollow plate, the side surface of the hollow inner part of the adjusting plate penetrates through a cuboid sliding groove of the plate surface, the sliding groove is vertically formed in the adjusting rod and is uniformly provided with adjusting clamping grooves towards the direction of the adjusting plate, the adjusting rod comprises an adjusting inner rod and an adjusting outer rod, a rod groove for placing the adjusting inner rod and a pressure spring for popping out the adjusting inner rod are arranged in the adjusting outer rod, the pressure spring is arranged between the rod groove and the adjusting inner rod and is elastically connected with the rod groove, the adjusting inner rod is arranged in the rod groove and is clamped with the rod groove in shape, and the adjusting outer rod is slidably fixed in the sliding groove in a flexible sliding manner.

According to a preferred embodiment, support rods are connected between the neck supporting part and the body position adjusting part along two sides of the extending direction of the adjusting rods, the support rods are fixedly connected with the neck supporting part through screws, the support rods are connected with adjusting handles used for driving the adjusting outer rods to slide, and the adjusting handles are sleeved on the adjusting outer rods in a free rotating mode. The neck supporting part and the body position adjusting part are connected with medical staff through a movable rotating shaft, and the size of a triangle formed by the neck supporting part, the adjusting rod and the supporting rod can be controlled by controlling the adjusting handle, so that the body position of a patient is adjusted.

According to a preferred embodiment, the storage part is provided with an opening for inserting an insertion tube, the insertion tube enters the storage part through the opening and is connected with a receiving bottle positioned on the bottom surface inside the storage part, the receiving bottle is a high bottle body, and a first air pipe connected with the air suction pump and a second air pipe connected with the hand-pinching air bag are arranged in parallel at the connection position of the receiving bottle and the insertion tube. Through the cooperative work of the air suction pump and the hand pinching air bag, when one component fails and cannot operate, the other component carries out the work of cleaning the foreign matters in the respiratory tract of the patient.

According to a preferred embodiment, the air outlet of the air pump is provided with a filter layer for filtering the exhaust gas, and the filter layer is located on the other side of the air outlet of the air pump and penetrates through the storage part to be connected with a filter air pipe.

According to a preferred embodiment, the pinch air bag is provided with a window for opening the storage portion and pressing the pinch air bag on a side of the storage portion. The storage part can be conveniently opened and the internal condition of the storage part can be checked by opening the window, and meanwhile, the pressing and maintenance operation of the hand-held airbag is also facilitated.

The utility model has the advantages of that:

1. the neck is protected and is held portion and hold up patient's neck shoulder, and medical staff holds the adjustment handle and presses the entering pole inslot with adjusting the interior pole, then removes the adjusting lever, and the position accords with "position is smelled to the nose" standard until the patient position. And releasing the adjusting inner rod, popping the adjusting inner rod under the action of the pressure spring and clamping the adjusting inner rod with the adjusting clamping groove at the current position, so that the adjusting rod does not slide any more. Through above aggregate unit, medical staff can control the triangle-shaped size that neck portion, adjusting lever and bracing piece formed through control adjustment handle to the adjustment patient position makes its respiratory tract straighten, accords with "the nose smells the position".

2. The diameter of the outer tube body is larger than that of the inner tube, and the inner tube is wrapped in the outer tube body, so that the inner tube and the outer tube are layered, the dredging efficiency of foreign matters in the respiratory tract of a patient is quickened, and the larger air pressure difference of the inner tube can prevent the large foreign matters from blocking the intubation tube. One end of the annular cavity between the outer tube body and the inner tube, which needs to be inserted into the respiratory tract of the patient, is provided with a net port for circumferentially coating the annular cavity in an annular manner. The net mouth 106 designed to be inclined with the inner pipe 103 can further accelerate the speed of cleaning foreign matters, and meanwhile, the fishing net-shaped net mouth prevents large foreign matters from entering the annular outer pipe body, so that the outer pipe body cannot cause the blockage of the channel of the outer pipe body due to the entering of the large foreign matters.

Drawings

FIG. 1 is a schematic diagram of a preferred embodiment of the critical medicine respiratory support patency device of the present invention;

FIG. 2 is a schematic structural view of a preferred embodiment of the cannula of the present invention;

fig. 3 is a schematic cross-sectional view of a preferred embodiment of the posture adjustment part of the present invention;

figure 4 is a schematic side view of a preferred embodiment of the placing section according to the invention;

fig. 5 is a sectional view of a preferred embodiment of the storage part of the present invention.

List of reference numerals

1: inserting a tube; 2: a head and neck axis angle gauge; 101: an air cushion; 102: an outer tube body; 103: an inner tube; 104: a pressurizing pipe; 105: a pneumatic valve; 106: a network port; 200: a placement section; 201: a neck support; 202: a body position adjusting part; 203: an adjustment plate; 204: a chute; 205: adjusting the clamping groove; 206: an adjusting lever; 207: adjusting the inner rod; 208: adjusting the outer rod; 209: a rod groove; 210: compressing the spring; 211: a support bar; 212: a screw; 213: adjusting the handle; 214: a movable rotating shaft; 220: a storage section; 221: an opening; 222: a storage bottle; 223: an air pump; 224: pinching the air bag by hand; 225: a first air pipe; 226: a second air pipe; 227: a filter layer; 228: filtering the air pipe; 229: and (6) windowing.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Example 1

The application relates to a respiratory support of severe medical science branch of academic or vocational study is with unobstructed device, including intubate 1 that is used for clearing up patient's respiratory tract foreign matter and the neck shaft angle appearance 2 that is used for placing intubate 1 and adjusting patient's position and becomes nose and smell the position. The outer surface of the radial axis of the cannula 1 is provided with an air cushion 101 for expanding the narrow respiratory tract of the patient. The cannula 1 comprises an outer tube 102 for connecting the air cushion 101 and for cleaning fluid foreign bodies and an inner tube 103 for cleaning bulk foreign bodies. Preferably, air cushion 101 comprises flexible material, and air cushion 101 lives intubate 1 with the mode parcel that encircles along intubate 1 circumference to air cushion 101 can slowly expand after through aerifing and remove support patient's respiratory track, makes the patient when carrying out the intubate and clean the respiratory tract foreign matter, and intubate 1 insertion process is more convenient, soft, reduces the injury to patient's respiratory track.

According to a preferred embodiment, the end of the air cushion 101 remote from the cannula 1 extending into the airway of the patient is fixedly extended along the cannula 1 with a pressure tube 104. The end of the pressurizing pipe 104 far away from the air cushion 101 is connected with an air pressure valve 105. The amount of gas flow into the cushion 101 is controlled by the pressure valve 105 such that the inflation of the cushion 101 corresponds to the different airway sizes of the respective patients. Preferably, the pneumatic valve 105 may be connected to a compression balloon, which delivers gas into the air cushion 101, thereby expanding the air cushion 101 to open the patient's airway.

According to a preferred embodiment, the diameter of outer tube 102 is larger than the diameter of inner tube 103, an annular cavity for cleaning fluid foreign matters is arranged between outer tube 102 and inner tube 103, and a cylindrical cavity for cleaning large foreign matters is arranged in the middle of the axis of inner tube 103. Outer body 102 and inner tube 103 divide into inside and outside two-layer with intubate 1, and wherein, the diameter of inner tube 103 is little, when cleaning the interior foreign matter process of patient's respiratory track, the less inner space of inner tube 103 accelerates the gas flow speed for the atmospheric pressure of inner tube 103 is littleer for outer body 102, has showing the promotion to cleaning bold foreign matter efficiency. And the fluid foreign matter is removed through the outer tube 102 having a smaller suction force. The inner and outer layered working mode of the cannula 1 accelerates the dredging efficiency of cleaning foreign matters in the respiratory tract of a patient, and simultaneously, the larger air pressure difference of the inner tube 103 can prevent the cannula 1 from being blocked by the large foreign matters.

According to a preferred embodiment, the end of the annular cavity between the outer tube 102 and the inner tube 103, which end is to be inserted into the patient's respiratory tract, is provided with a mesh port 106 for annularly and circumferentially covering the annular cavity and sucking up fluid foreign matter. The mesh opening 106 extends from the outer tube body 102 in the radial direction of the cannula 1 and is inclined towards the inside of the cannula 1 until reaching the outer edge of the inner tube 103. The net port 106 and the inner tube 103 form a small funnel shape, and the outer tube 102 is connected to the outer edge of the larger opening of the funnel shape. The mesh opening 106 and the inner pipe 103 are matched to further accelerate the speed of cleaning foreign matters, and meanwhile, the fishing net-shaped mesh opening 106 prevents large foreign matters from entering the annular outer pipe body 102, so that the outer pipe body 102 cannot be blocked due to the entering of the large foreign matters.

According to a preferred embodiment, the shaft angle gauge 2 includes a placement portion 200 for placement of the patient's neck and a storage portion 220 for storage of the patency device body member for respiratory support.

According to a preferred embodiment, the placing part 200 comprises a neck supporting part 201 for supporting the neck bending part of the patient when lying down and a body position adjusting part 202 for adjusting the head position of the patient. The neck protection part 201 is arc-shaped and is arranged below the body position adjusting part 202, and the arc-shaped is in accordance with the bending of the neck of the human body. The cross section of the neck protecting and holding part 201 is in a water drop-like shape, and the neck and even the shoulder of the patient are supported by the neck protecting and holding part 201 according with the full position of the bending of the neck of the human body.

The body position adjusting part 202 includes an adjusting plate 203 for placing the head and an adjusting rod 206 for fixing the corresponding head placing angle of the patient. The adjusting plate 203 is a hollow plate and has a side surface provided with a sliding groove 204, and the sliding groove 204 is a cuboid sliding groove formed in the hollow side surface of the adjusting plate 203 and penetrates through the plate surface. The sliding grooves 204 are uniformly distributed with a plurality of adjusting slots 205 along the direction perpendicular to the adjusting rod 206 and toward the adjusting plate 203. The adjusting rod 206 comprises an adjusting inner rod 207 and an adjusting outer rod 208, a rod groove 209 for placing the adjusting inner rod 207 and a pressure spring 210 for popping up the adjusting inner rod 207 are arranged in the adjusting outer rod 208, and the pressure spring 210 is positioned between the rod groove 209 and the adjusting inner rod 207 and elastically connects the two. The adjustment inner rod 207 is positioned within the rod slot 209 and is shaped to engage the rod slot 209. The adjusting outer rod 208 is slidably fixed in the sliding groove 204 in a flexible sliding manner.

Support rods 211 are connected between the neck supporting part 201 and the body position adjusting part 202 along two sides of the extending direction of the adjusting rod 206, and the support rods 211 are fixedly connected with the neck supporting part 201 through screws 212. The supporting rod 211 is connected with an adjusting handle 213 which is used for driving the adjusting outer rod 208 to slide, and the adjusting handle 213 is sleeved on the adjusting outer rod 208 in a free rotation manner. Move adjustment handle 213 and press the interior pole 207 of adjustment and get into in the pole groove 209 through medical staff just can make adjusting rod 206 freely remove in spout 204, after adjusting rod 206 moved to corresponding position, unclamp adjusting rod 207 for adjusting rod 207 and spout 204 go up evenly distributed's adjustment draw-in groove 205 block, thereby let adjusting rod 206 fix its adjustment draw-in groove 205 position. The neck support part 201 and the body position adjusting part 202 are connected through a movable rotating shaft 214. Because the position of the screw 212 and the length of the support rod 211 are not changed, the triangle formed among the neck support part 201, the body position adjusting part 202 and the support rod 211 can adjust the internal angle formed by the adjusting rod 206 and the slide groove 204 through the free movement of the adjusting rod, so that the internal angle conforms to the nose smelling position. The nasal olfactory position can be described by the head and neck axial plane of the patient: the throat of the patient is taken as a first axial direction X, the trachea of the patient is taken as a second axial direction Y, and the oral cavity of the patient is taken as a third axial direction Z. When the patient normally lies down, the third axis direction Z is perpendicular to the first axis direction X, and the second axis direction Y is located between the other two axis directions. The neck is lifted by the neck support 201 placed on the neck of the patient, and the second axial direction Y is gradually close to the first axial direction X. The position of the head of the patient is changed by the body position adjusting part 202, so that the third axis Z is close to the other two axes. Finally, the three-axis angle is obviously reduced, the respiratory tract of the patient is smoother, and the nose sniffing position is formed.

According to a preferred embodiment, the storage portion 220 is provided with an opening 221 for inserting the cannula 1, and the cannula 1 enters the storage portion 220 through the opening 221 and is connected to a receiving bottle 222 located at the bottom surface of the interior of the storage portion 220. The receiving bottle 222 is a tall bottle and is provided with a first air tube 225 connected to the suction pump 223 and a second air tube 226 connected to the pinch air bag 224 in parallel at a connection portion with the cannula 1. Through the cooperative work of the air pump 223 and the hand-pinching air bag 224, when one of the components fails and cannot operate, the other component is used for cleaning the respiratory tract foreign matter of the patient, so that the problems that the respiratory tract foreign matter of the patient is too long and the device is replaced to cause secondary injury to the patient are solved.

According to a preferred embodiment, the outlet of the air pump 223 is provided with a filter 227 for filtering the exhaust gas, and the filter 227 is connected to a filter air tube 228 penetrating the storage portion 220 at the other side of the outlet of the air pump 223. The filtering air pipe 228 may be connected to a gas storage bag for storing the filtered gas and disposing it as medical waste, through the storage part 220 toward the outside thereof. The filter layer 227 may be composed of activated carbon, a bacteria filter net, a water absorbing layer, and an isolation layer, and the filter layer 227 can filter bacteria or harmful substances contained in the gas. Preferably, the filter layer 227 may also be provided as a dry type high efficiency air filter, such as a HEPA filter, made of laminated borosilicate microfibers. The HEPA filter can be used for filtering organisms such as bacteria and viruses in the air, so that the infection and the transmission of related diseases caused by the organisms such as the bacteria and the viruses can be prevented and controlled. The HEPA filter adopts international standard size and specification, and the filtering efficiency of the HEPA filter on particles larger than or equal to 0.3 mu m is more than 99.97 percent.

According to a preferred embodiment, the pinch air bag 224 is provided with a window 229 on a side of the storage portion 220 for opening the storage portion 220 and pressing the pinch air bag 224. The window 229 can be conveniently opened to open the storage part 220 and check the internal condition of the storage part, and meanwhile, the pressing and maintenance operation of the hand pinching air bag 224 is also facilitated.

For ease of understanding, the working principle and method of use of the patency device for critical care respiratory support of the present invention will be discussed.

Let the patient lie down and place the patient's neck in the placing portion 200 of the head and neck axis angle gauge 2. The neck and shoulder of the patient is supported by the neck protecting part 201, the medical staff holds the adjusting handle 213 by hand and presses the adjusting inner rod 207 into the rod groove 209, then the adjusting rod 206 is moved until the body position of the patient meets the 'nose smelling position' standard, the adjusting inner rod 207 is loosened, and the adjusting inner rod 207 is popped out under the action of the pressure spring 210 and is clamped with the adjusting clamping groove 205 at the current position, so that the adjusting rod 206 does not slide any more. The cannula 1 is inserted into the respiratory tract of a patient, and the air cushion 101 annularly wrapped on the surface of the cannula 1 is inflated by pressing the air bag and the air pressure valve 105, so that the air cushion 101 expands to prop open the respiratory tract of the patient. Finally, foreign matter or gas in the airway of the patient is sucked out by the suction pump 223 or the pinch air bag 224 and stored in the storage bottle 222 or the gas storage bag.

In addition, the outer tube 102, the inner tube 103 and the net port 106 of the cannula 1 are designed to increase the suction force to the large foreign matters in the respiratory tract of the patient, so that the foreign matters can not block the inner tube 103, and meanwhile, the fishing net-shaped net port 106 prevents the large foreign matters from entering the annular outer tube 102, so that the outer tube 102 can not block the channel of the outer tube 102 due to the entering of the large foreign matters.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (7)

1. The utility model provides a severe medical science branch of academic or vocational study is breathed and is supported with unobstructed device which characterized in that includes:

a cannula (1) for cleaning the foreign body in the respiratory tract of a patient,

a head and neck axis angle instrument (2) for placing the intubation tube (1) and adjusting the position of the patient to the nasal sniffing position,

the outer surface of the radial axis of the cannula (1) is provided with an air cushion (101) for expanding the narrow respiratory tract of a patient,

the cannula (1) comprises an outer tube body (102) used for connecting the air cushion (101) and cleaning fluid foreign matters and an inner tube (103) used for cleaning large foreign matters, the diameter of the outer tube body (102) is larger than that of the inner tube (103), an annular cavity used for cleaning the fluid foreign matters is arranged between the outer tube body (102) and the inner tube (103), the middle of the axis of the inner tube (103) is a cylindrical cavity used for cleaning the large foreign matters,

the head and neck axis angle gauge (2) comprises a placing part (200) for placing the neck of a patient and a storing part (220) for storing the unobstructed device body member for breathing support,

the placing part (200) comprises a neck supporting part (201) for supporting the neck bending part of the patient when lying down and a body position adjusting part (202) for adjusting the head position of the patient,

the neck protecting and holding part (201) is in an arc shape conforming to the bending of the neck of the human body and is arranged below the body position adjusting part (202).

2. The critical medical science respiratory support patency device of claim 1, wherein one end of the air cushion (101) far away from the cannula (1) and extending into the respiratory tract of the patient is fixedly attached with a pressure tube (104) along the cannula (1), and one end of the pressure tube (104) far away from the air cushion (101) is connected with an air pressure valve (105).

3. The critical care medical science breathing support patency device according to claim 2, wherein one end of the annular cavity between the outer tube (102) and the inner tube (103) to be inserted into the respiratory tract of the patient is provided with a net port (106) for annularly and circumferentially covering the annular cavity and sucking fluid foreign matter,

the net opening (106) extends from the outer tube body (102) along the radial direction of the insertion tube (1) and inclines towards the inner part of the insertion tube (1) until reaching the outer edge of the inner tube (103).

4. The critical medical science breathing support patency device of claim 1, wherein the body position adjustment portion (202) comprises an adjustment plate (203) for positioning the head and an adjustment rod (206) for fixing the corresponding head positioning angle of the patient,

spout (204) have been seted up for well hollow plate and side to adjusting plate (203), spout (204) do the cuboid spout of face is run through to the side of adjusting plate (203) cavity inside, spout (204) are along the perpendicular adjusting lever (206) and orientation adjusting plate (203) direction evenly distributed has adjustment draw-in groove (205).

5. The critical medical science breathing support patency device of claim 4, wherein the adjustment rod (206) comprises an inner adjustment rod (207) and an outer adjustment rod (208),

a rod groove (209) for placing the adjusting inner rod (207) and a pressure spring (210) for popping up the adjusting inner rod (207) are arranged in the adjusting outer rod (208), the pressure spring (210) is positioned between the rod groove (209) and the adjusting inner rod (207) and elastically connects the rod groove (209) and the adjusting inner rod (207),

the adjusting inner rod (207) is positioned in the rod groove (209) and is clamped with the rod groove (209) in shape, and the adjusting outer rod (208) is fixed in the sliding groove (204) in a sliding mode in a flexible sliding mode.

6. The critical care medical science breathing support patency device according to claim 5, wherein a support rod (211) is connected between the neck support part (201) and the body position adjustment part (202) along both sides of the extension direction of the adjustment rod (206),

the supporting rod (211) is fixedly connected with the neck protecting and holding part (201) through a screw rod (212), the supporting rod (211) is connected with an adjusting handle (213) which is used for driving the adjusting outer rod (208) to slide, and the adjusting handle (213) is sleeved on the adjusting outer rod (208) in a free rotating mode.

7. The critical medical science respiratory support patency device according to claim 6, wherein the storage portion (220) is provided with an opening (221) for inserting a cannula (1), the cannula (1) enters the storage portion (220) through the opening (221) and is connected with a receiving bottle (222) located at the bottom inside the storage portion (220),

the containing bottle (222) is a high bottle body, and a first air pipe (225) connected with a suction pump (223) and a second air pipe (226) connected with a hand-pinching air bag (224) are arranged in parallel at the joint of the containing bottle and the intubation tube (1).

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