CN113350645A

CN113350645A - Tracheal cannula assembly

Info

Publication number: CN113350645A
Application number: CN202010148950.4A
Authority: CN
Inventors: 肖亮; 陈佳
Original assignee: Shanghai Oriental Medical Innovation Research Institute
Current assignee: Shanghai Oriental Medical Innovation Research Institute
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2021-09-07

Abstract

The present application provides an endotracheal tube assembly for preventing droplet contamination of a patient's airway, the endotracheal tube assembly comprising: inserting a tube; a patch having a lower surface attachable to and forming a seal with a surface of an object, the patch comprising: the fixed edge is connected with the insertion pipe in a sealing way along the circumferential direction; a free edge distal to the cannula. The utility model provides a trachea cannula subassembly can effectively cover patient's oronasal, keeps apart droplet, aerosol.

Description

Tracheal cannula assembly

Technical Field

The embodiment of the application relates to a medical apparatus, in particular to an endotracheal intubation component for preventing the splash pollution of the airway of a patient.

Background

The transmission route of the strong infectious diseases such as SARS, Ebola hemorrhagic fever, new coronary pneumonia Virus (Corona Virus) and the like which are outbreaked all over the world is mainly through respiratory droplets and contact. For example, the new coronavirus is treated by supportive treatment, and the treatment course is high oxygen flow treatment or noninvasive ventilator; if a noninvasive ventilator is not used for two hours, the trachea is intubated. However, each step of tracheal intubation for critical patients has a precondition and a corresponding standard. The hardware is matched, the precondition for trachea intubation is that a laminar flow ward is needed, and the medical care ratio after intubation reaches 1: 2-3. The current situation is that under the condition that the number of patients is large, the number of multi-layer flow wards of a hospital is very limited, and more patients cannot be accommodated. If the hardware set is lacked, all doctors and nurses are very likely to be infected. In the sputum aspiration process, droplets are sprayed out when a patient is stimulated to cough. After the patient is intubated, the patient can continuously spray new coronavirus droplets for 24 hours, and the air in the whole room can be polluted.

The existing isolation and protection articles for patients exist, the anti-splashing isolation towel used in some intensive care units is spliced by soft transparent plastic and an operation towel, the periphery of the isolation and protection articles is pasted by an adhesive tape, the sputum suction process is realized by a bedside tracheal cannula, the splashing can be really avoided, the risk of exposure infection is reduced, the instrument in the operation process of the cannula cannot be avoided, the risk of aerosol infection is inevitable, the operation space and the visual field of an operator are greatly influenced, and the cooperation operation of a plurality of people is difficult.

The whole cover is made of hard plastic or pipe, a diaphragm operating window is arranged around a patient, the upper half or the whole body is occupied, the occupied space is large, the mass production, the storage and the transportation are difficult, the problems of insufficient light transmission, low cyclic utilization rate and the like exist, the sealing performance of the diaphragm is poor, and the virus transmission is still possible.

CN201333146Y discloses a separate nursing cover, which has limited observation and nursing, and is difficult to change the original operation habit of the operator in order to perform the operation, and the usability is poor.

Patent No. CN209643938U discloses a splash-proof mask special for bronchoscopy, which comprises a mask, a fixed elastic band and a hair-care piece; the left end and the right end of the face mask are fixedly connected with fixed elastic bands, and the fixed elastic bands and the two sides of the face mask form a closed ring shape; the upper side of the face mask is fixedly connected with a hair-protecting piece, the center position of the face mask is fixedly provided with a nose-shaped opening which penetrates through the front and the back, and the front side of the nose-shaped opening is fixedly provided with a nose-shaped bulge. But the structure is complex, the operation is inconvenient, and the use of the fixed elastic band can cause indentation to patients.

Therefore, an endotracheal intubation which is convenient to operate is urgently needed, so that the virus of a patient is prevented from being transmitted to medical staff through respiratory droplets and aerosol, and the operations of the medical staff such as operation and nursing are not influenced.

Disclosure of Invention

In view of the above, it is a primary object of the present application to provide an endotracheal tube assembly for preventing droplet contamination of a patient's airway, the endotracheal tube assembly comprising: inserting a tube; a patch having a lower surface attachable to and forming a seal with a surface of an object, the patch comprising: the fixed edge is connected with the insertion pipe in a sealing way along the circumferential direction; a free edge distal to the cannula.

Optionally, the cannula is a single or multi-lumen tube.

Optionally, the tube wall of the tube body is provided with scale marks for prompting the depth of inserting into the trachea.

Optionally, the cannula comprises:

the far end of the tube body is provided with at least one saccule;

the interface is respectively communicated with the pipe body and an external gas pipeline;

wherein, this pad pasting is located between this sacculus and the near-end of this body, and this lower surface is towards this sacculus.

Optionally, the endotracheal tube assembly further comprises an inflation member, the balloon being connected to the inflation member, the inflation member being for inflating the balloon.

Optionally, the interface is provided with a three-way valve for communicating the pipe body with an external gas pipeline.

Optionally, the proximal end of the tubular body is provided with a sealing cover which can be opened and closed when an external insert is inserted into the tubular body.

Optionally, the patch further comprises at least one openable and closable socket arranged on the pad pasting, wherein the socket is sealed by a plurality of elastic valves which are sequentially arranged by taking the central point of the socket as the center; wherein, when the outer insert is inserted into the socket, the resilient valve opens and surrounds the outer insert, thereby allowing the outer insert to enter the airway of the patient.

Optionally, the endotracheal tube assembly further comprises a tooth holding unit connected to the patch for distracting the upper and lower teeth of the patient.

Optionally, the tooth holding unit comprises:

an upper tooth support for supporting an upper tooth;

the lower tooth support is used for supporting lower teeth, the lower tooth support is connected with the upper tooth support and forms a gap with the upper tooth support, and the first pipe body enters into the airway of the patient through the gap when being inserted into the airway of the patient.

Optionally, the upper dental support has two ends and the lower dental support has two ends.

Optionally, the two end portions of the upper dental support and the lower dental support are respectively connected to form an annular cylinder, and the inner space surrounded by the annular cylinder forms the gap.

Optionally, the upper dental support forms an angle of less than 90 ° with the lower dental support at the junction.

Optionally, the surface of the object is a human tissue surface, and the lower surface has an area that covers at least the tissue surface around the nose and mouth of the human patient or the throat of the patient.

It is thus clear that the trachea cannula subassembly of this application can effectively cover patient's mouth and nose, keeps apart droplet, aerosol, avoids taking place droplet, aerosol infection because of carrying out trachea cannula, cricothyroid membrane puncture, trachea incision, inhale operations such as phlegm to the patient.

Secondly, the body near-end is equipped with the sealed lid that can open and shut, and it has dynamic leakproofness, can supply outside plug-in components such as leaded light stick, inhale the phlegm pipe and insert, and when outside plug-in components inserted sealed lid, sealed lid can closely laminate with outside plug-in components to prevent that patient's breathing droplet, aerosol from spreading to the outside.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIGS. 1-2 are schematic views of an embodiment of an endotracheal tube assembly of the present application;

FIG. 3 is a schematic view of an embodiment of a three-way valve of the endotracheal tube assembly of the present application;

FIG. 4 is a schematic view of an embodiment of a sealing cap of an endotracheal tube assembly of the present application;

fig. 5 to 7 are schematic views of embodiments of the elastic sealing cover of the present application;

FIG. 8 is a schematic view of the back of the elastomeric seal cover of the present application shown in FIG. 7;

FIGS. 9-12 are schematic views of a seal ring of the present application and an outer insert inserted into the seal ring, respectively;

fig. 13 and 14 are schematic views of embodiments of a tooth holding unit of the present application, respectively.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

In this context, the terms "upper" and "lower" and "inner" and "outer" refer to directions that are spatially opposite. Relational terms such as first and second, and the like may be used solely herein to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Numerical ordinals such as "first", "second", etc., merely indicate different instances of a plurality and do not imply any order or sequence unless specifically defined by the claim language. The numbers "a" and "an" are not limited to one, and may be two or more. The term "proximal" refers to the end closer to the operator, and "distal" refers to the end farther from the operator. The textual order of any of the claims does not imply that the process steps must be performed in a temporal or logical order according to such order, unless specifically defined by the language of the claim.

Referring to fig. 1, an embodiment of the present application provides an intubation assembly 200 for preventing droplet contamination of a patient's airway, and as shown in the figure, the intubation assembly 200 mainly includes an intubation tube 201 and a film 101, wherein a lower surface 101a of the film 101 can be attached to and form a seal with a surface of an object. The "object" may be human tissue, such as skin, gums, etc. However, the "object" is not limited to a human body, and may be an animal body, a plant body, or the like. In one embodiment of the present application, the surface of the object is a skin and gum surface of a human body, and the lower surface has an area at least covering the skin and gum surface around the oral cavity of the human body. The area of the lower surface can also cover the skin tissue surface of any part of human body such as nostril, throat, abdominal cavity, thorax, etc., and the mouth and nose corresponding position can be provided with shaping strips to adapt to different patient face shapes. The material of the patch 101 may be a flexible gel, preferably with a material that is virus-resistant and breathable. The film 101 includes: a fixed edge 101b which is connected with the cannula 201 in a sealing way along the circumferential direction; a free edge 101c, which is distal from the cannula 201. The cannula 201 may be of various styles, and may be a single lumen tube, a multi-lumen tube, or other configurations. The material of the film 101 may be transparent material to facilitate the medical staff to operate the visual field clearly.

Referring to fig. 2, in an embodiment of the present application, a cannula 201 includes: a tube body 202, the distal end of which is provided with a balloon 203; a port 204, which communicates with the tube 202 and an external gas pipeline, respectively; the film 101 is disposed between the balloon 203 and the proximal end of the tube 202, and the lower surface 101a faces the balloon 203. Also comprises an inflating part 205, the balloon 203 is connected with the inflating part 205, and the inflating part 205 is used for inflating the balloon 203. The outer wall of cannula 201 may be provided with a vent conduit in communication with balloon 203 and inflation 205. The number of the balloons 203 is not limited, and may be one or more. The pipe wall of the pipe body can be provided with scale marks for prompting the depth of inserting the trachea.

Referring to fig. 2 and 3, in one embodiment of the present application, the interface 204 is provided with a three-way valve 206 for communicating the pipe 202 with an external gas pipeline. Three-way valve 206 has two passageways, one communicating with tube 202, into which tube 202 external plug 105 can be inserted, and one communicating with an external gas line. The outer insert 105 may be a light guide rod or other instrument suitable for insertion into the tube 202.

Referring to fig. 4, the proximal end of the tube 202 is provided with a sealing cover 207 that can be opened and closed, so that when the outer insert 105 is inserted into the tube 202, the sealing cover 207 is opened and tightly attached to the outer insert 105. The sealing cover 207 may be a resilient sealing cover 104.

Referring to fig. 5 to 8, in an embodiment of the present application, the elastic sealing cover 104 is composed of a plurality of elastic valves 104a sequentially arranged with a center point of the insertion opening 102 as a center, and when the elastic sealing cover 104 is pressed by an external force, the elastic valves 104a are opened and tightly attached to an outer wall of the inserted external insert 105. The elastic sealing cover 104 and the elastic valve 104a may be in any shape such as circular, square, irregular, etc. The elastic valve 104a can be arranged by splicing the edges of a plurality of elastic valves 104a together (see fig. 5 and 6), overlapping (see fig. 7 and 8), or other combinations.

In this embodiment, as shown in fig. 6, the flexible valve 104a is substantially composed of a plurality of fan-shaped valves 104a, each fan-shaped valve 104a is formed by a triangular valve 104c and an irregularly shaped valve 104b, each valve 104b is provided with a cut 109, and the angle of each cut 109 is consistent, so that all the cuts 109 form an approximately circular arrangement, which makes the outer insert 105 more sealed to the flexible valve when the outer insert 105 is inserted into the receptacle 102. In addition, the elastic sealing cover 104 may include one or more layers of sealing members that overlap each other and may further enhance the sealing of the outer insert 105 to the elastic valve.

In another embodiment, the film 101 is further provided with a retractable socket 102, and the socket 102 is sealed by a plurality of elastic valves 104 arranged in sequence with the center point of the socket 102 as the center; wherein, when an external insert is inserted into the socket 102, the flexible valve 104 opens and fits snugly against the external insert, thereby allowing the external insert to enter the patient's airway. In this embodiment, the external insert 105 may be a sputum aspirator or other suitable instrument. The shape of the socket 102 is not limited to a circular shape, but may be an oval shape, a square shape, an irregular shape, or the like, and the shape of the socket 102 may be designed according to the external card 105 to be inserted.

In one embodiment of the present application, the method of using the endotracheal intubation assembly 200 is to seal the mouth and/or nose with the film 101, insert the intubation tube 201, insert the light guide rod (external insert) into the intubation tube 201 through the sealing cap 207, pull out the light guide rod, and introduce the oxygen tube into the intubation tube 201 through the interface 204, thereby supplying oxygen to the airway of the patient. When the intubation tube 201 needs to be pulled out, the oxygen therapy tube is disconnected, the intubation tube 201 is pulled out to the oral cavity of the patient, the lower jaw of the patient is pressed down, the patient respiratory tract is blocked (the glottis is closed mainly due to tongue suffix, and spray is prevented), the sputum suction tube is inserted through the inserting opening 102 to perform sputum suction operation or the sputum suction tube (with the diameter of about 4 mm) is inserted from the insertable tube 201 to perform sputum suction operation. Finally, the cannula 201 and the film 101 are removed together.

Referring to fig. 9 to 12, in an embodiment of the present application, the insertion opening 102 is provided with a sealing ring 103, the inner side of the sealing ring 103 is connected to the elastic valve 104, and the outer side is connected to the patch 101. The shape of the sealing ring 103 is designed in accordance with the shape of the elastic sealing cover 104. The sealing ring 103 may provide a cushion when the outer insert 105 is inserted into the socket 102, further preventing the patient from splashing of breath such as spray, aerosol, etc. As shown in fig. 8 and 9, in an embodiment of the present application, the socket 102 may be arranged coaxially with the sealing ring 103, i.e. the center point of the socket 102 coincides with the center point of the sealing ring 103. As shown in fig. 10 and 11, in an embodiment of the present application, the socket 102 may be arranged eccentrically to the sealing ring 103, i.e. the center point of the socket 102 is not coincident with the center point of the sealing ring 103. This off-center arrangement further facilitates insertion of the outer insert 105 into the socket 102 and also further facilitates prevention of spray spillage.

The endotracheal tube assembly 200 may also include a pair of nasal prongs (not shown) that are connected to the patch 101, such as by a connecting wire. During operation, the nasal plug can be plugged into the nostril of a patient to prevent the nasal plug from breathing out spray, aerosol and the like through the nostril.

In another embodiment of the present application, as shown in fig. 13 to 14, the endotracheal tube assembly 200 may further include a tooth holding unit 106 connected to the patch 101. In this embodiment, the tooth holding unit 106 includes: an upper tooth support 106a for supporting upper teeth; a lower tooth support 106b for supporting a lower tooth, the lower tooth support 106b being connected to the upper tooth support 106a and forming a gap 107, the gap 107 corresponding to the socket 102. When the flexible sealing cover 104 is opened when subjected to an external squeezing force, and the flexible sealing cover 104 is tightly fitted with the external insert 105 inserted into the socket, the external insert 105 penetrates the film 101 into the gap 107 and further into the airway of the patient. The upper dental support 106a has two end portions, and the lower dental support 106b has two end portions. The oral cavity holding device of this application can effectively fix patient's tooth in the operation such as trachea cannula, panonychomycosis puncture, tracheotomy, phlegm suction, prevents that the patient from stinging outside plug-in components.

As shown in fig. 14, in an embodiment, the two end portions of the upper supporting member 106a and the lower supporting member 106b are connected to form an included angle smaller than 90 °, and a space sandwiched between the two end portions of the upper supporting member 106a and the lower supporting member 106b forms a gap 107. The upper and lower

dental supports

106a and 106b are fixedly or non-fixedly attached to the film 101, and the film 101 is positioned over the gap 107 to seal the patient's gums.

In another embodiment, the upper dental support 106a and the lower dental support 106b are connected at two ends to form an annular cylinder, and the inner space surrounded by the annular cylinder forms a gap 107. The upper dental support 106a may extend a length 106 a' relative to the lower dental support 106b for depressing the tongue to prevent a hypertrophic tongue from accumulating at the epiglottis and blocking ventilation.

In an embodiment of the present application, when the cannula 201 is inserted, the film 101 is attached to the mouth and nose of the patient to close the mouth and nose, the tooth holding unit 106 is used to fix the upper teeth and the lower teeth, the external plug-in component 105 is inserted into the gap 107 formed by the upper tooth supporting component 106a and the lower tooth supporting component 106b, and then the external plug-in component sequentially enters the mouth and airway of the patient, so as to perform the operation on the patient.

To sum up, the trachea cannula subassembly of this application can effectively cover patient's mouth and nose, keeps apart droplet, aerosol, avoids because of carrying out trachea cannula, cricothyroid membrane puncture to patient, and the trachea is cut, is inhaled phlegm etc. and has invasive operation and take place droplet, aerosol infection.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. An endotracheal tube assembly for preventing droplet contamination of a patient's airway, the endotracheal tube assembly comprising:

inserting a tube;

a patch having a lower surface attachable to and forming a seal with a surface of an object, the patch comprising:

the fixed edge is connected with the insertion pipe in a sealing way along the circumferential direction;

a free edge distal to the cannula.

2. The endotracheal tube assembly according to claim 1, characterized in that the tube is a single or multi-lumen tube.

3. The endotracheal tube assembly according to claim 1, wherein the intubation tube includes:

the far end of the tube body is provided with at least one saccule;

4. The endotracheal tube assembly according to claim 3, further comprising an inflation member connected to the balloon for inflating the balloon.

5. The endotracheal tube assembly of claim 3, wherein the interface is provided with a three way valve for communicating the tube body with an external gas line.

6. The endotracheal intubation assembly according to claim 1, wherein the tube wall of the tube body is provided with scale marks for indicating the insertion depth into the trachea.

7. An endotracheal tube assembly according to claim 1, characterized in that the proximal end of the tubular body is provided with a sealing cover which is openable and closable for opening and closing engagement with the outer insert when inserted into the tubular body.

8. The endotracheal intubation assembly according to claim 1, further comprising at least one openable and closable socket provided on the patch, the socket being sealed by a plurality of elastic valves arranged in series centered on a central point of the socket; wherein, when the outer insert is inserted into the socket, the resilient valve opens and surrounds the outer insert, thereby allowing the outer insert to enter the airway of the patient.

9. The endotracheal tube assembly according to claim 1, further comprising a tooth holding unit connected to the film for distracting the upper and lower teeth of the patient.

10. The endotracheal tube assembly according to claim 8, characterized in that the tooth holding unit comprises:

an upper tooth support for supporting an upper tooth;

11. The endotracheal tube assembly according to claim 7, characterized in that the upper dental support member has two end portions and the lower dental support member has two end portions.

12. The endotracheal tube assembly of claim 10, wherein the upper support member and the lower support member are connected at opposite ends thereof to form an annular post, respectively, the void being defined by an interior space defined by the annular post.

13. The endotracheal tube assembly of claim 10 wherein the upper support member forms an angle with the lower support member at the junction that is less than 90 °.

14. The endotracheal tube assembly according to claim 1, characterized in that said object surface is a human tissue surface, and that said lower surface has an area at least covering a tissue surface surrounding the oro-nasal cavity of a human patient or the larynx of the patient.